feat: add whitepaper #5
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WalkthroughAdds two new whitepaper documents (root WHITEPAPER.md and docs site MDX) describing a fully on-chain chess system and Ephemeral Rollup integration. Updates docs config to scaffold an optional Mermaid remark plugin via commented lines; no functional runtime changes. Changes
Sequence Diagram(s)sequenceDiagram
autonumber
participant P as Player
participant SDK as CheckMate SDK (TS)
participant ER as Ephemeral Rollup
participant L1 as Solana L1
participant Prog as Chess Program
rect rgb(235, 245, 255)
note over P,SDK: Gameplay request (create/join/move/draw)
P->>SDK: Initiate action
SDK->>ER: Submit request (low-latency exec)
ER->>Prog: Validate and update state (delegated)
Prog-->>ER: State result / events
ER-->>SDK: Response (success/error)
SDK-->>P: Return outcome
end
alt Commit window reached
note over ER,L1: Settlement / proof commitment
ER->>L1: Commit state/proof
L1->>Prog: Finalize commitment
Prog-->>L1: Acknowledgement
L1-->>ER: Finalization confirmed
else Ongoing session
note over ER: Continue ephemeral execution
end
opt Error path
ER-->>SDK: InvalidMove / Unauthorized / etc.
SDK-->>P: Surface error
end
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~20 minutes Poem
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Actionable comments posted: 5
🧹 Nitpick comments (10)
WHITEPAPER.md (10)
304-319: Provide encode/decode helpers to avoid magic numbers.Expose helpers to extract color/type and to set/clear bits; improves correctness and readability.
pub fn get_piece_at(&self, square: u8) -> u8 { @@ } pub fn set_piece_at(&mut self, square: u8, piece: u8) { @@ } + +// Suggested helpers +pub fn piece_color(piece: u8) -> u8 { piece >> 4 } +pub fn piece_type(piece: u8) -> u8 { piece & 0x0F } +pub fn make_piece(color: u8, typ: u8) -> u8 { (color << 4) | (typ & 0x0F) }
595-597: Missing variables for draw ops.
acceptDrawParamsandrejectDrawParamsare used but not defined.-const { instruction } = await chessMateSDK.acceptDrawIx(acceptDrawParams); -const { instruction } = await chessMateSDK.rejectDrawIx(rejectDrawParams); +const acceptDrawParams = { player: signer, gameId: BigInt(1), integratorId: address("YourIntegratorId") }; +const rejectDrawParams = { player: signer, gameId: BigInt(1), integratorId: address("YourIntegratorId") }; +const { instruction: acceptIx } = await chessMateSDK.acceptDrawIx(acceptDrawParams); +const { instruction: rejectIx } = await chessMateSDK.rejectDrawIx(rejectDrawParams);
709-729: Stop polling on terminal states or errors.Avoid perpetual timers and wasted RPC calls.
- setInterval(async () => { + const t = setInterval(async () => { try { const gameAccount = await fetchGameAccount(erRpc, gameAccountPDA); if (gameAccount.exists) { updateUI(gameAccount.data); if (gameAccount.data.gameStatus === GameStatus.Finished) { handleGameEnd(gameAccount.data); + clearInterval(t); } } } catch (error) { console.error("Failed to fetch game state:", error); + clearInterval(t); } }, 1000);
490-499: Standardize naming: CheckMate vs ChessMate.You use “CheckMate SDK” but instantiate
chessMateSDK. Pick one style, e.g.,checkmateSdk.-const chessMateSDK = new ChessGameSDK(); +const checkmateSdk = new ChessGameSDK();
223-235: Mark custom attributes/macros as pseudo and link to docs.
#[commit]and delegation attributes are non-standard in Anchor. Label snippets as pseudo-code and add a reference.-#[commit] +// Pseudo-code: commit macro provided by MagicBlock +#[commit] // see: MagicBlock Ephemeral Rollups docsAlso applies to: 195-203
821-836: Rephrase “reentrancy attacks” for Solana context.Solana’s runtime model differs from EVM; reentrancy phrasing can mislead. Emphasize CPI safety and idempotent state transitions.
-// Protection against reentrancy attacks +// CPI safety: idempotent state transitions; no re-entry into the same instruction within a tx
862-871: Sub-100ms and cost claims: add methodology/appendix.Add environment, measurement method, N, percentile, and dates (e.g., August 2025), and clarify what “batch settlement every 2–4s” depends on.
I can draft a “Benchmarks & Assumptions” appendix with reproducible scripts (SDK + cluster settings). Want me to add it?
Also applies to: 867-871
612-637: Document square indexing origin (a1 index) to avoid off-by-one bugs.You use e2=12, e4=28 implying a1=0, row-major. State this explicitly.
// Smart RPC selection based on game status +// Board indexing: a1=0, b1=1, ..., h1=7, a2=8, ..., h8=63 (row-major).
150-155: ExplainIntegratorConfig.integrator_idvsintegrator.Redundant-looking fields. Add a sentence clarifying identity vs authority and immutability.
1-21: Tighten headline lists and punctuation.LanguageTool flags minor list/punctuation issues in “Key Innovations” and “Competitive Advantages.” Add terminal periods or keep a consistent no-period style; use parallel structure.
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WHITEPAPER.md(1 hunks)
🧰 Additional context used
🪛 LanguageTool
WHITEPAPER.md
[grammar] ~7-~7: There might be a mistake here.
Context: ... on-chain execution. Key Innovations: - Real-time Performance: Achieving sub-5...
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Context: ...le maintaining full Solana compatibility - Complete On-Chain Logic: All game rule...
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Context: ...erations executed transparently on-chain - Multi-Tenant Architecture: Scalable pl...
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Context: ...grators with customizable fee structures - Seamless Integration: TypeScript SDK e...
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[grammar] ~16-~16: There might be a mistake here.
Context: ...Fi landscape. Competitive Advantages: - No state fragmentation or bridge depende...
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[grammar] ~17-~17: There might be a mistake here.
Context: ...ate fragmentation or bridge dependencies - Horizontal scaling through on-demand Eph...
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Context: ...tal scaling through on-demand Ephemeral Rollups - Native Solana ecosystem integration - Tr...
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Context: ...ps - Native Solana ecosystem integration - Transparent and immutable game mechanics...
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Context: ...fecycle: Game Lifecycle Management: - create_game: Initialize new games with configurable...
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Context: ...e new games with configurable parameters - join_game: Enable second player to join open game...
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Context: ... configurable parameters - join_game: Enable second player to join open games - `can...
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Context: ... Enable second player to join open games - cancel_game: Allow creators to cancel games before ...
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Context: ...eators to cancel games before they start - forfeit_game: Enable players to concede during activ...
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Context: ...during active games Move Execution: - make_move: Core instruction handling move validat...
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[grammar] ~109-~109: There might be a mistake here.
Context: ...ndling move validation and state updates - Comprehensive chess rule validation incl...
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Context: ...ule validation including check detection - Special move support (castling, en passa...
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Context: ...passant, promotion) Draw Mechanics: - offer_draw: Propose draw to opponent - `accept_dra...
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Context: ...- offer_draw: Propose draw to opponent - accept_draw: Accept pending draw offers - `reject_d...
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Context: ...accept_draw: Accept pending draw offers - reject_draw`: Decline draw proposals **Financial Op...
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Context: ...raw proposals Financial Operations: - claim_winnings: Distribute prize pools to winners - Au...
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Context: ...ame_id: u64, } ``` This design enables: - White-label Integration: Third-party p...
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Context: ...cial Architecture #### Escrow Mechanism The system implements a secure escrow me...
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Context: ...ocked: bool, ``` Security Features: - Funds are locked in program-controlled a...
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Context: ... in case of disputes #### Fee Structure The platform implements a dual-fee syste...
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Context: ...e platform implements a dual-fee system: - Platform Fees: Base fees collected by ...
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[grammar] ~176-~176: There might be a mistake here.
Context: ...Base fees collected by the chess program - Integrator Fees: Additional fees colle...
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Context: ... fees collected by third-party platforms - Transparent Calculation: All fees calc...
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Context: ...support } ``` Delegation Lifecycle: 1. Initiation: Game accounts are delegate...
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Context: ... session ends #### Parallel Read Access During delegation, the base layer mainta...
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Context: ... access to delegated accounts, ensuring: - Composability: Other programs can stil...
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[grammar] ~219-~219: There might be a mistake here.
Context: ...on Details #### Conditional Compilation The program uses feature flags to suppor...
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[grammar] ~243-~243: There might be a mistake here.
Context: ...ically reverted #### Session Management Ephemeral Rollup sessions are managed th...
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[grammar] ~253-~253: There might be a mistake here.
Context: ...ormance Benefits #### Latency Reduction - Base Layer: 400ms average block time o...
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Context: ...er**: 400ms average block time on Solana - Ephemeral Rollup: 10-50ms execution ti...
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Context: ...: 10-50ms execution time for chess moves - User Experience: Near-instantaneous mo...
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Context: ...d board updates #### Throughput Scaling - Horizontal Scaling: Multiple rollups c...
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Context: ...ng active sessions #### Cost Efficiency - Reduced Base Layer Load: Only final st...
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Context: ...e Handling Castling Implementation: - Validates king and rook positions - Chec...
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Context: ...n**: - Validates king and rook positions - Checks for intervening pieces - Ensures ...
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Context: ...ositions - Checks for intervening pieces - Ensures neither piece has moved previous...
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Context: ...sures neither piece has moved previously - Verifies king is not in check **En Pass...
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Context: ...is not in check En Passant Capture: - Tracks pawn double-moves for en passant ...
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Context: ...ouble-moves for en passant opportunities - Validates capture conditions - Removes c...
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Context: ...rtunities - Validates capture conditions - Removes captured pawn from board **Pawn...
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Context: ...red pawn from board Pawn Promotion: - Detects pawns reaching the opposite end ...
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Context: ... Detects pawns reaching the opposite end - Validates promotion piece selection - Up...
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Context: ...nd - Validates promotion piece selection - Updates board state with promoted piece ...
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[grammar] ~474-~474: There might be a mistake here.
Context: ...atically detects game-ending conditions: - Checkmate Detection: Validates that th...
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Context: ...es positions where no legal moves exist but king is not in check - **Draw Condition...
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Context: ...Installation and Setup Prerequisites: - Node.js 18+ - TypeScript 4.9+ **Install...
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Context: ... Setup Prerequisites: - Node.js 18+ - TypeScript 4.9+ Installation: ```ba...
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Context: ...ogram/token ``` Wallet Integration: The SDK works with any wallet implementi...
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Context: ..., error); } } ``` Error Categories: - InvalidMoveError: Chess rule violations - `GameNotFoundE...
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Context: ...InvalidMoveError: Chess rule violations - GameNotFoundError: Invalid game references - Unauthorize...
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Context: ...eNotFoundError: Invalid game references - UnauthorizedPlayerError: Permission violations - InsufficientF...
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Context: ...rizedPlayerError: Permission violations - InsufficientFundsError: Wallet balance issues - NetworkError`...
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Context: ...icientFundsError: Wallet balance issues - NetworkError`: RPC connectivity issues ### 6.7 Integ...
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Context: ...Patterns Event-Driven Architecture: The SDK supports real-time game state mo...
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Context: ...r); ``` Caching and State Management: - Local game state caching to reduce RPC c...
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Context: ...l game state caching to reduce RPC calls - Optimistic UI updates with rollback on f...
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Context: ...stic UI updates with rollback on failure - Efficient board state serialization - Mi...
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Context: ...re - Efficient board state serialization - Minimal account data fetching The Check...
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Context: ...ty with user adoption: Platform Fees: - Base platform fee: 2.5% of entry fees - ...
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Context: ... - Base platform fee: 2.5% of entry fees - Volume-based discounts for high-activity...
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Context: ... discounts for high-activity integrators - Dynamic fee adjustment based on network ...
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[grammar] ~790-~790: There might be a mistake here.
Context: ...ongestion Integrator Revenue Sharing: - Integrators earn 1-3% commission on game...
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Context: ...egrator_fee; ``` Winner Distribution: - Winner receives 100% of prize pool - Dra...
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Context: ...iple security layers: Access Control: - Player-specific move validation - Time-b...
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Context: ...rol:** - Player-specific move validation - Time-based game state transitions - Auth...
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Context: ...tion - Time-based game state transitions - Authority-based administrative functions...
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Context: ...trative functions Financial Security: - Escrow-based prize pool management - Ato...
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Context: ...:** - Escrow-based prize pool management - Atomic win/loss settlements - Protection...
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Context: ...management - Atomic win/loss settlements - Protection against reentrancy attacks *...
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[grammar] ~837-~837: There might be a mistake here.
Context: ...st reentrancy attacks Game Integrity: - On-chain move validation prevents cheati...
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[grammar] ~846-~846: There might be a mistake here.
Context: ...n security through: State Delegation: - Temporary delegation of account authorit...
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[grammar] ~847-~847: There might be a mistake here.
Context: ...emporary delegation of account authority - Automatic reversion to main chain - Cryp...
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Context: ...rity - Automatic reversion to main chain - Cryptographic proof of state transitions...
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[grammar] ~851-~851: There might be a mistake here.
Context: ... state transitions Validator Network: - Decentralized validation of rollup state...
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Context: ...ecentralized validation of rollup states - Economic incentives for honest behavior ...
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Context: ... Economic incentives for honest behavior - Slashing conditions for malicious actors...
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[grammar] ~862-~862: There might be a mistake here.
Context: ...ance improvements: Transaction Speed: - Move confirmation: <100ms (vs 400ms on m...
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Context: ...nfirmation: <100ms (vs 400ms on mainnet) - Game state updates: Real-time - Batch se...
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Context: ...mainnet) - Game state updates: Real-time - Batch settlement: Every 2-4 seconds **C...
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Context: ...t: Every 2-4 seconds Cost Efficiency: - Per-move cost: ~$0.0001 (vs $0.01 on mai...
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Context: ...ove cost: ~$0.0001 (vs $0.01 on mainnet) - Game creation: ~$0.001 - Settlement: Sta...
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Context: ....01 on mainnet) - Game creation: ~$0.001 - Settlement: Standard Solana fees ### 9....
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Context: ...tiple mechanisms: Horizontal Scaling: - Multiple rollup instances for different ...
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Context: ...ollup instances for different game types - Geographic distribution of rollup valida...
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Context: ...raphic distribution of rollup validators - Load balancing across rollup endpoints ...
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[grammar] ~881-~881: There might be a mistake here.
Context: ...llup endpoints Vertical Optimization: - Efficient board state encoding (64 bytes...
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Context: ...fficient board state encoding (64 bytes) - Compressed move representation - Optimiz...
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Context: ... bytes) - Compressed move representation - Optimized instruction layouts ### 9.3 N...
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Context: ... (Q3-Q4 2025) Advanced Game Features: - Tournament bracket system - Team-based c...
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Context: ... Features:** - Tournament bracket system - Team-based competitions - Spectator mode...
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Context: ...bracket system - Team-based competitions - Spectator mode with live commentary - Ad...
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Context: ...ns - Spectator mode with live commentary - Advanced time controls (Fischer, Bronste...
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Context: ...er, Bronstein) Platform Improvements: - Mobile SDK development - Enhanced analyt...
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Context: ...Improvements:** - Mobile SDK development - Enhanced analytics dashboard - Automated...
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Context: ...velopment - Enhanced analytics dashboard - Automated market making for entry fees -...
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Context: ...- Automated market making for entry fees - Integration with chess rating systems #...
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Context: ...nts (Q1-Q2 2026) Ecosystem Expansion: - Additional board games (Go, Checkers, Ba...
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Context: ...l board games (Go, Checkers, Backgammon) - Cross-game tournaments and leagues - NFT...
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Context: ...on) - Cross-game tournaments and leagues - NFT integration for unique pieces and bo...
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Context: ...integration for unique pieces and boards - Streaming and content creator tools **T...
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Context: ...creator tools Technical Advancements: - Zero-knowledge proof integration for pri...
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Context: ...edge proof integration for private games - Advanced AI opponent integration - Cross...
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Context: ...games - Advanced AI opponent integration - Cross-chain bridge development - Enhance...
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Context: ...gration - Cross-chain bridge development - Enhanced MEV protection ### 10.3 Long-t...
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Context: ...26+) Governance and Decentralization: - DAO governance implementation - Communit...
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Context: ...ation:** - DAO governance implementation - Community-driven feature development - D...
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Context: ...n - Community-driven feature development - Decentralized tournament organization - ...
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Context: ... - Decentralized tournament organization - Player-owned platform evolution ## 11. ...
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Context: ... that delivers: Technical Excellence: - Sub-100ms move confirmations - 99%+ cost...
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Context: ...llence:** - Sub-100ms move confirmations - 99%+ cost reduction compared to mainnet ...
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Context: ... reduction compared to mainnet execution - Seamless integration with existing Solan...
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Context: ...tion with existing Solana infrastructure - Robust security through cryptographic st...
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Context: ...state delegation Economic Innovation: - Sustainable multi-tier fee structure - R...
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Context: ...* - Sustainable multi-tier fee structure - Revenue sharing with platform integrator...
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Context: ...evenue sharing with platform integrators - Transparent, escrow-based prize distribu...
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Context: ...sparent, escrow-based prize distribution - Support for diverse token economies **D...
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Context: ...token economies Developer Experience: - Comprehensive TypeScript SDK - Clean, in...
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[grammar] ~949-~949: There might be a mistake here.
Context: ...rience:** - Comprehensive TypeScript SDK - Clean, intuitive API design - Extensive ...
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[grammar] ~950-~950: There might be a mistake here.
Context: ...Script SDK - Clean, intuitive API design - Extensive documentation and examples - M...
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Context: ...n - Extensive documentation and examples - Multiple integration patterns **User Be...
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[grammar] ~954-~954: There might be a mistake here.
Context: ...e integration patterns User Benefits: - Instant gameplay feedback - Minimal tran...
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Context: ... Benefits:** - Instant gameplay feedback - Minimal transaction costs - Provably fai...
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Context: ...lay feedback - Minimal transaction costs - Provably fair game mechanics - Seamless ...
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Context: ...ion costs - Provably fair game mechanics - Seamless wallet integration The platfor...
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[grammar] ~964-~964: There might be a mistake here.
Context: ...has arrived. This chess platform stands as testament to what becomes possible when...
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[style] ~964-~964: This sentence construction might be considered wordy, consider shortening it.
Context: ...ology meets timeless gameplay, creating experiences that are simultaneously familiar and revolutionary. --- *For technical...
(A_VERY_ORDERED_SENTENCE)
| // Piece encoding: 0xTC where T = type, C = color | ||
| // Color: 1 = White, 2 = Black | ||
| // Type: 1 = Pawn, 2 = Knight, 3 = Bishop, 4 = Rook, 5 = Queen, 6 = King | ||
|
|
||
| // Examples: | ||
| // 0x11 = White Pawn | ||
| // 0x26 = Black King | ||
| // 0x00 = Empty Square | ||
| ``` | ||
|
|
||
| #### Board Initialization | ||
| ```rust | ||
| fn initialize_chess_board() -> [u8; 64] { | ||
| let mut board = [0u8; 64]; | ||
|
|
||
| // White pieces (ranks 1-2) | ||
| board[0] = 0x14; // White Rook on a1 | ||
| board[1] = 0x12; // White Knight on b1 | ||
| // ... complete setup | ||
|
|
||
| // Black pieces (ranks 7-8) | ||
| board[56] = 0x24; // Black Rook on a8 | ||
| // ... complete setup | ||
|
|
There was a problem hiding this comment.
🛠️ Refactor suggestion
Fix encoding scheme inconsistency (0xTC vs 0xCT) and examples.
Examples and initialization align with 0xCT (color in high nibble, type in low), but the comment says 0xTC. Unify to 0xCT and adjust examples to be unambiguous.
-// Piece encoding: 0xTC where T = type, C = color
+// Piece encoding: 0xCT where C = color (high nibble), T = type (low nibble)
-// 0x11 = White Pawn
-// 0x26 = Black King
+// 0x11 = White Pawn (C=1, T=1)
+// 0x26 = Black King (C=2, T=6)
+// Helpers:
+// color(piece) = piece >> 4
+// typ(piece) = piece & 0x0F- board[0] = 0x14; // White Rook on a1
- board[1] = 0x12; // White Knight on b1
+ board[0] = 0x14; // White Rook on a1 (C=1,T=4)
+ board[1] = 0x12; // White Knight on b1 (C=1,T=2)
- board[56] = 0x24; // Black Rook on a8
+ board[56] = 0x24; // Black Rook on a8 (C=2,T=4)📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| // Piece encoding: 0xTC where T = type, C = color | |
| // Color: 1 = White, 2 = Black | |
| // Type: 1 = Pawn, 2 = Knight, 3 = Bishop, 4 = Rook, 5 = Queen, 6 = King | |
| // Examples: | |
| // 0x11 = White Pawn | |
| // 0x26 = Black King | |
| // 0x00 = Empty Square | |
| ``` | |
| #### Board Initialization | |
| ```rust | |
| fn initialize_chess_board() -> [u8; 64] { | |
| let mut board = [0u8; 64]; | |
| // White pieces (ranks 1-2) | |
| board[0] = 0x14; // White Rook on a1 | |
| board[1] = 0x12; // White Knight on b1 | |
| // ... complete setup | |
| // Black pieces (ranks 7-8) | |
| board[56] = 0x24; // Black Rook on a8 | |
| // ... complete setup | |
| // Piece encoding: 0xCT where C = color (high nibble), T = type (low nibble) | |
| // Color: 1 = White, 2 = Black | |
| // Type: 1 = Pawn, 2 = Knight, 3 = Bishop, 4 = Rook, 5 = Queen, 6 = King | |
| // Examples: | |
| // 0x11 = White Pawn (C=1, T=1) | |
| // 0x26 = Black King (C=2, T=6) | |
| // 0x00 = Empty Square | |
| // Helpers: | |
| // color(piece) = piece >> 4 | |
| // typ(piece) = piece & 0x0F | |
| #### Board Initialization | |
| fn initialize_chess_board() -> [u8; 64] { | |
| let mut board = [0u8; 64]; | |
| // White pieces (ranks 1-2) | |
| board[0] = 0x14; // White Rook on a1 (C=1,T=4) | |
| board[1] = 0x12; // White Knight on b1 (C=1,T=2) | |
| // ... complete setup | |
| // Black pieces (ranks 7-8) | |
| board[56] = 0x24; // Black Rook on a8 (C=2,T=4) | |
| // ... complete setup | |
| } |
🤖 Prompt for AI Agents
In WHITEPAPER.md around lines 276-299, the piece encoding comment currently says
"0xTC" but the examples and initialization use color in the high nibble and type
in the low nibble; change the canonical format text to "0xCT" (C = color in high
nibble, T = type in low nibble), update the brief mappings to state "Color: 1 =
White, 2 = Black (high nibble); Type: 1 = Pawn ... 6 = King (low nibble)", and
revise the example lines and the board initialization comments so they
consistently reflect 0xCT (e.g., 0x11 = White Pawn, 0x26 = Black King) and
ensure the inline board assignments/notes (like board[0] = 0x14 // White Rook on
a1) match that encoding.
| pub fn handler( | ||
| ctx: Context<MakeMove>, | ||
| from_square: u8, | ||
| to_square: u8, | ||
| promotion_piece: Option<PieceType>, | ||
| ) -> Result<()> { | ||
| // 1. Basic validation | ||
| ctx.accounts.validate(from_square, to_square)?; | ||
|
|
||
| // 2. Turn validation | ||
| require!( | ||
| game_account.is_player_turn(&player.key()), | ||
| ChessError::NotPlayerTurn | ||
| ); | ||
|
|
||
| // 3. Piece validation | ||
| let piece_at_from = game_account.get_piece_at(from_square); | ||
| require!(piece_at_from != 0, ChessError::NoPieceAtSquare); | ||
|
|
||
| // 4. Chess rule validation | ||
| require!( | ||
| utils::is_valid_chess_move( | ||
| &game_account.board_state, | ||
| from_square, | ||
| to_square, | ||
| piece_type, | ||
| &game_account.castling_rights, | ||
| game_account.en_passant_square, | ||
| promotion_piece.clone() | ||
| )?, | ||
| ChessError::InvalidMove | ||
| ); | ||
|
|
||
| // 5. Check validation | ||
| require!( | ||
| !utils::move_leaves_king_in_check( | ||
| &game_account.board_state, | ||
| from_square, | ||
| to_square, | ||
| &player_color, | ||
| &game_account.castling_rights | ||
| )?, | ||
| ChessError::MoveExposesKing | ||
| ); | ||
|
|
||
| // 6. Apply move | ||
| utils::apply_move_to_board(/* ... */)? | ||
| } |
There was a problem hiding this comment.
Undefined vars in move handler (piece_type, player_color); derive from board.
Code references piece_type and player_color without definitions. Decode from piece_at_from (or current turn).
// 3. Piece validation
- let piece_at_from = game_account.get_piece_at(from_square);
+ let piece_at_from = game_account.get_piece_at(from_square);
+ let piece_type = PieceType::from_byte(piece_at_from);
+ let player_color = PlayerColor::from_byte(piece_at_from);
require!(piece_at_from != 0, ChessError::NoPieceAtSquare);📝 Committable suggestion
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Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| pub fn handler( | |
| ctx: Context<MakeMove>, | |
| from_square: u8, | |
| to_square: u8, | |
| promotion_piece: Option<PieceType>, | |
| ) -> Result<()> { | |
| // 1. Basic validation | |
| ctx.accounts.validate(from_square, to_square)?; | |
| // 2. Turn validation | |
| require!( | |
| game_account.is_player_turn(&player.key()), | |
| ChessError::NotPlayerTurn | |
| ); | |
| // 3. Piece validation | |
| let piece_at_from = game_account.get_piece_at(from_square); | |
| require!(piece_at_from != 0, ChessError::NoPieceAtSquare); | |
| // 4. Chess rule validation | |
| require!( | |
| utils::is_valid_chess_move( | |
| &game_account.board_state, | |
| from_square, | |
| to_square, | |
| piece_type, | |
| &game_account.castling_rights, | |
| game_account.en_passant_square, | |
| promotion_piece.clone() | |
| )?, | |
| ChessError::InvalidMove | |
| ); | |
| // 5. Check validation | |
| require!( | |
| !utils::move_leaves_king_in_check( | |
| &game_account.board_state, | |
| from_square, | |
| to_square, | |
| &player_color, | |
| &game_account.castling_rights | |
| )?, | |
| ChessError::MoveExposesKing | |
| ); | |
| // 6. Apply move | |
| utils::apply_move_to_board(/* ... */)? | |
| } | |
| // 3. Piece validation | |
| let piece_at_from = game_account.get_piece_at(from_square); | |
| let piece_type = PieceType::from_byte(piece_at_from); | |
| let player_color = PlayerColor::from_byte(piece_at_from); | |
| require!(piece_at_from != 0, ChessError::NoPieceAtSquare); |
🤖 Prompt for AI Agents
In WHITEPAPER.md around lines 327 to 374, the handler uses undefined locals
piece_type and player_color; derive them instead: decode piece_type from
piece_at_from (e.g. extract its PieceType enum/value) and derive player_color
from the piece metadata or from the game_account.current_turn (ensuring it
matches the piece owner); then pass those derived values into
utils::is_valid_chess_move and utils::move_leaves_king_in_check and any other
call sites, and update any variable names/casts to match expected function
signatures so the validations use the decoded piece type and correct player
color.
| // Time tracking per move | ||
| let time_taken = if let Some(last_move_time) = game_account.last_move_at { | ||
| (clock.unix_timestamp - last_move_time) as u32 | ||
| } else { | ||
| 0 | ||
| }; | ||
|
|
||
| // Update player time usage | ||
| match player_color { | ||
| PlayerColor::White => { | ||
| game_account.time_used_white += time_taken; | ||
| if let Some(increment) = game_account.get_time_increment() { | ||
| game_account.time_used_white = | ||
| game_account.time_used_white.saturating_sub(increment); | ||
| } | ||
| } | ||
| PlayerColor::Black => { | ||
| // Similar logic for black player | ||
| } | ||
| } | ||
| ``` |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Inconsistent field: last_move_at not defined in state.
Earlier state uses last_move: Option<LastMove>, but time control uses last_move_at. Align the model.
Option A (add timestamp field):
pub struct GameAccount {
@@
- pub last_move: Option<LastMove>,
+ pub last_move: Option<LastMove>,
+ pub last_move_at: Option<i64>, // unix ts
}Option B (use last_move.timestamp in snippet). Choose one and keep consistent throughout.
📝 Committable suggestion
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Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| // Time tracking per move | |
| let time_taken = if let Some(last_move_time) = game_account.last_move_at { | |
| (clock.unix_timestamp - last_move_time) as u32 | |
| } else { | |
| 0 | |
| }; | |
| // Update player time usage | |
| match player_color { | |
| PlayerColor::White => { | |
| game_account.time_used_white += time_taken; | |
| if let Some(increment) = game_account.get_time_increment() { | |
| game_account.time_used_white = | |
| game_account.time_used_white.saturating_sub(increment); | |
| } | |
| } | |
| PlayerColor::Black => { | |
| // Similar logic for black player | |
| } | |
| } | |
| ``` | |
| pub struct GameAccount { | |
| // … other fields … | |
| pub last_move: Option<LastMove>, | |
| pub last_move_at: Option<i64>, // unix timestamp of the last move | |
| // … remaining fields … | |
| } |
🤖 Prompt for AI Agents
In WHITEPAPER.md around lines 436 to 456, the time-tracking snippet references
game_account.last_move_at which doesn't exist because the state uses last_move:
Option<LastMove>; update the code to use one consistent field: either add a
last_move_at: Option<i64>/timestamp to the game state everywhere (Option A) or
change this snippet to read the timestamp from last_move (e.g., if let
Some(last_move) = &game_account.last_move { (clock.unix_timestamp -
last_move.timestamp) as u32 } else { 0 }) (Option B); pick one approach, apply
it consistently across the state definition and all usages, and update any
getter/helper functions to match the chosen field name and type.
| tokenMint: address("EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"), // USDC | ||
| entryFee: BigInt(1_000_000), // 1 USDC | ||
| timeControl: { |
There was a problem hiding this comment.
💡 Verification agent
🧩 Analysis chain
Devnet RPC with mainnet USDC mint; switch to devnet mint or paramize.
Using EPjF... (mainnet USDC) against devnet RPC will fail.
- tokenMint: address("EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"), // USDC
+ tokenMint: address(process.env.USDC_MINT!), // set per cluster (devnet/mainnet)Also add a table or note mapping cluster→mint in docs.
🏁 Script executed:
#!/bin/bash
# Print context around the USDC mint snippet in WHITEPAPER.md
sed -n '530,580p' WHITEPAPER.mdLength of output: 1343
🏁 Script executed:
#!/bin/bash
# Search for USDC_MINT environment variable usage
rg -n "USDC_MINT" -C3 .
# Search for hardcoded USDC mint address occurrences
rg -n "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v" -C3 .Length of output: 3874
Parametrize USDC mint in docs and examples
Replace every hard-coded mainnet USDC mint (EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v) with a configurable process.env.USDC_MINT—set to the devnet mint 4zMMC9srt5Ri5X14GAgXhaHii3GnPAEERYPJgZJDncDU on devnet and the mainnet mint on mainnet (stackoverflow.com, docs.lmnl.app). Update WHITEPAPER.md and quick-start.mdx examples accordingly and add a cluster→mint mapping table in the docs.
🤖 Prompt for AI Agents
In WHITEPAPER.md around lines 548 to 550 the USDC mint is hard-coded to the
mainnet address EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v; replace usages
with a configurable environment variable process.env.USDC_MINT, update examples
to read that variable (and document the expected values), set the dev default to
4zMMC9srt5Ri5X14GAgXhaHii3GnPAEERYPJgZJDncDU for devnet and the mainnet mint for
mainnet, apply the same change in quick-start.mdx examples, and add a small
cluster→mint mapping table in docs showing devnet and mainnet mint addresses and
how to set process.env.USDC_MINT.
| const { instruction } = await chessMateSDK.makeMoveIx(moveParams); | ||
| const signature = await sendTransaction(erRpc, [instruction], signer); | ||
|
|
There was a problem hiding this comment.
🛠️ Refactor suggestion
sendTransaction not imported; batch snippet passes objects, not Instructions.
Import/send properly and pass instruction fields.
-const { instruction } = await chessMateSDK.makeMoveIx(moveParams);
-const signature = await sendTransaction(erRpc, [instruction], signer);
+const { instruction } = await chessMateSDK.makeMoveIx(moveParams);
+import { sendAndConfirm } from "@solana/kit"; // example; replace with actual
+const signature = await sendAndConfirm(erRpc, [instruction], signer);-const instructions = [
- await chessMateSDK.makeMoveIx(moveParams1),
- await chessMateSDK.makeMoveIx(moveParams2)
-];
-const signature = await sendTransaction(erRpc, instructions, signer);
+const ix1 = (await chessMateSDK.makeMoveIx(moveParams1)).instruction;
+const ix2 = (await chessMateSDK.makeMoveIx(moveParams2)).instruction;
+const signature = await sendAndConfirm(erRpc, [ix1, ix2], signer);Also applies to: 761-769
🤖 Prompt for AI Agents
In WHITEPAPER.md around lines 585-587 (also applies to 761-769), the snippet
calls sendTransaction but does not import or reference it and passes full
objects instead of Instruction instances; fix by importing or referencing the
correct sendTransaction helper (or RPC client method) at the top of the snippet
and ensure you pass the instruction field(s) (e.g., instruction or
instruction.instructions array) rather than the entire objects so the call
receives real Solana Instruction(s); update the example to extract and pass
instruction(s) and include the required import/initialization line.
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Actionable comments posted: 5
♻️ Duplicate comments (5)
WHITEPAPER.md (5)
405-413: Fix piece-encoding docs: 0xTC vs 0xCT inconsistency.Unify to color high nibble, type low nibble; align examples and init comments.
-// Piece encoding: 0xTC where T = type, C = color +// Piece encoding: 0xCT where C = color (high nibble), T = type (low nibble) // Color: 1 = White, 2 = Black // Type: 1 = Pawn, 2 = Knight, 3 = Bishop, 4 = Rook, 5 = Queen, 6 = King -// 0x11 = White Pawn -// 0x26 = Black King +// 0x11 = White Pawn (C=1,T=1) +// 0x26 = Black King (C=2,T=6)- board[0] = 0x14; // White Rook on a1 - board[1] = 0x12; // White Knight on b1 + board[0] = 0x14; // White Rook on a1 (C=1,T=4) + board[1] = 0x12; // White Knight on b1 (C=1,T=2) - board[56] = 0x24; // Black Rook on a8 + board[56] = 0x24; // Black Rook on a8 (C=2,T=4)Also applies to: 420-427
472-503: Undefined vars in move handler (piece_type,player_color).Decode from
piece_at_frombefore calling validators.let piece_at_from = game_account.get_piece_at(from_square); + let piece_type = PieceType::from_byte(piece_at_from); + let player_color = PlayerColor::from_byte(piece_at_from); require!(piece_at_from != 0, ChessError::NoPieceAtSquare);
565-585:last_move_atreferenced but not part of state.Add it to
GameAccountor read timestamp fromlast_move. Recommend adding the field for clarity.-// Time tracking per move -let time_taken = if let Some(last_move_time) = game_account.last_move_at { +// Time tracking per move +let time_taken = if let Some(last_move_time) = game_account.last_move_at { (clock.unix_timestamp - last_move_time) as u32 } else { 0 };And in the state definition (earlier section):
pub last_move: Option<LastMove>, +pub last_move_at: Option<i64>, // unix ts
677-679: Devnet RPC + mainnet USDC mint will fail; parameterize mint per cluster.Use
process.env.USDC_MINTand document devnet/mainnet values.- tokenMint: address("EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"), // USDC + tokenMint: address(process.env.USDC_MINT!), // devnet/mainnet specific
714-716: Import send helper and passInstructions, not wrapper objects.Fix both single-send and batch examples.
-const { instruction } = await chessMateSDK.makeMoveIx(moveParams); -const signature = await sendTransaction(erRpc, [instruction], signer); +import { sendAndConfirm } from "@solana/kit"; // or project helper +const { instruction } = await chessMateSDK.makeMoveIx(moveParams); +const signature = await sendAndConfirm(erRpc, [instruction], signer);-const instructions = [ - await chessMateSDK.makeMoveIx(moveParams1), - await chessMateSDK.makeMoveIx(moveParams2) -]; -const signature = await sendTransaction(erRpc, instructions, signer); +const ix1 = (await chessMateSDK.makeMoveIx(moveParams1)).instruction; +const ix2 = (await chessMateSDK.makeMoveIx(moveParams2)).instruction; +const signature = await sendAndConfirm(erRpc, [ix1, ix2], signer);
🧹 Nitpick comments (3)
apps/docs/content/docs/whitepaper/index.mdx (3)
52-169: Use mermaid fence for the architecture diagram (and specify languages for all fences).Change the fence to ```mermaid so it renders in MDX and satisfies MD040.
-``` +```mermaid graph TB ... -``` +```
775-777: Avoidconst { instruction }re-declaration three times.Rename for clarity or scope in separate blocks.
-const { instruction } = await chessMateSDK.offerDrawIx(offerDrawParams); -const { instruction } = await chessMateSDK.acceptDrawIx(acceptDrawParams); -const { instruction } = await chessMateSDK.rejectDrawIx(rejectDrawParams); +const { instruction: offerDrawIx } = await chessMateSDK.offerDrawIx(offerDrawParams); +const { instruction: acceptDrawIx } = await chessMateSDK.acceptDrawIx(acceptDrawParams); +const { instruction: rejectDrawIx } = await chessMateSDK.rejectDrawIx(rejectDrawParams);
902-918: Polling snippet: add teardown to prevent leaking intervals.Expose a disposer or clearInterval on game end/unmount.
- setInterval(async () => { + const interval = setInterval(async () => { try { const gameAccount = await fetchGameAccount(erRpc, gameAccountPDA); if (gameAccount.exists) { updateUI(gameAccount.data); if (gameAccount.data.gameStatus === GameStatus.Finished) { handleGameEnd(gameAccount.data); + clearInterval(interval); } } } catch (error) { console.error("Failed to fetch game state:", error); } - }, 1000); // Poll every second + }, 1000); // Poll every second + return () => clearInterval(interval);
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🧰 Additional context used
🪛 LanguageTool
WHITEPAPER.md
[grammar] ~7-~7: There might be a mistake here.
Context: ... on-chain execution. Key Innovations: - Real-time Performance: Achieving sub-5...
(QB_NEW_EN)
[grammar] ~8-~8: There might be a mistake here.
Context: ...le maintaining full Solana compatibility - Complete On-Chain Logic: All game rule...
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[grammar] ~9-~9: There might be a mistake here.
Context: ...erations executed transparently on-chain - Multi-Tenant Architecture: Scalable pl...
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[grammar] ~10-~10: There might be a mistake here.
Context: ...grators with customizable fee structures - Seamless Integration: TypeScript SDK e...
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[grammar] ~16-~16: There might be a mistake here.
Context: ...Fi landscape. Competitive Advantages: - No state fragmentation or bridge depende...
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[grammar] ~17-~17: There might be a mistake here.
Context: ...ate fragmentation or bridge dependencies - Horizontal scaling through on-demand Eph...
(QB_NEW_EN)
[grammar] ~18-~18: There might be a mistake here.
Context: ...tal scaling through on-demand Ephemeral Rollups - Native Solana ecosystem integration - Tr...
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[grammar] ~19-~19: There might be a mistake here.
Context: ...ps - Native Solana ecosystem integration - Transparent and immutable game mechanics...
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[grammar] ~171-~171: There might be a mistake here.
Context: ...Chess players and third-party developers - Integration Layer: SDK, wallets, and f...
(QB_NEW_EN)
[grammar] ~172-~172: There might be a mistake here.
Context: ...*: SDK, wallets, and frontend interfaces - Platform Layer: Multiple integrator pl...
(QB_NEW_EN)
[grammar] ~173-~173: There might be a mistake here.
Context: ...tor platforms with custom configurations - Ephemeral Rollup Layer: High-speed exe...
(QB_NEW_EN)
[grammar] ~174-~174: There might be a mistake here.
Context: ... execution environments for active games - Solana L1 Layer: Permanent state stora...
(QB_NEW_EN)
[grammar] ~231-~231: There might be a mistake here.
Context: ...fecycle: Game Lifecycle Management: - create_game: Initialize new games with configurable...
(QB_NEW_EN)
[grammar] ~232-~232: There might be a mistake here.
Context: ...e new games with configurable parameters - join_game: Enable second player to join open game...
(QB_NEW_EN)
[grammar] ~233-~233: There might be a mistake here.
Context: ... configurable parameters - join_game: Enable second player to join open games - `can...
(QB_NEW_EN)
[grammar] ~233-~233: There might be a mistake here.
Context: ... Enable second player to join open games - cancel_game: Allow creators to cancel games before ...
(QB_NEW_EN)
[grammar] ~234-~234: There might be a mistake here.
Context: ...eators to cancel games before they start - forfeit_game: Enable players to concede during activ...
(QB_NEW_EN)
[grammar] ~237-~237: There might be a mistake here.
Context: ...during active games Move Execution: - make_move: Core instruction handling move validat...
(QB_NEW_EN)
[grammar] ~238-~238: There might be a mistake here.
Context: ...ndling move validation and state updates - Comprehensive chess rule validation incl...
(QB_NEW_EN)
[grammar] ~239-~239: There might be a mistake here.
Context: ...ule validation including check detection - Special move support (castling, en passa...
(QB_NEW_EN)
[grammar] ~242-~242: There might be a mistake here.
Context: ...passant, promotion) Draw Mechanics: - offer_draw: Propose draw to opponent - `accept_dra...
(QB_NEW_EN)
[grammar] ~243-~243: There might be a mistake here.
Context: ...- offer_draw: Propose draw to opponent - accept_draw: Accept pending draw offers - `reject_d...
(QB_NEW_EN)
[grammar] ~244-~244: There might be a mistake here.
Context: ...accept_draw: Accept pending draw offers - reject_draw`: Decline draw proposals **Financial Op...
(QB_NEW_EN)
[grammar] ~247-~247: There might be a mistake here.
Context: ...raw proposals Financial Operations: - claim_winnings: Distribute prize pools to winners - Au...
(QB_NEW_EN)
[grammar] ~279-~279: There might be a mistake here.
Context: ...ame_id: u64, } ``` This design enables: - White-label Integration: Third-party p...
(QB_NEW_EN)
[grammar] ~287-~287: There might be a mistake here.
Context: ...cial Architecture #### Escrow Mechanism The system implements a secure escrow me...
(QB_NEW_EN)
[grammar] ~297-~297: There might be a mistake here.
Context: ...ocked: bool, ``` Security Features: - Funds are locked in program-controlled a...
(QB_NEW_EN)
[grammar] ~303-~303: There might be a mistake here.
Context: ... in case of disputes #### Fee Structure The platform implements a dual-fee syste...
(QB_NEW_EN)
[grammar] ~304-~304: There might be a mistake here.
Context: ...e platform implements a dual-fee system: - Platform Fees: Base fees collected by ...
(QB_NEW_EN)
[grammar] ~305-~305: There might be a mistake here.
Context: ...Base fees collected by the chess program - Integrator Fees: Additional fees colle...
(QB_NEW_EN)
[grammar] ~306-~306: There might be a mistake here.
Context: ... fees collected by third-party platforms - Transparent Calculation: All fees calc...
(QB_NEW_EN)
[grammar] ~334-~334: There might be a mistake here.
Context: ...support } ``` Delegation Lifecycle: 1. Initiation: Game accounts are delegate...
(QB_NEW_EN)
[grammar] ~340-~340: There might be a mistake here.
Context: ... session ends #### Parallel Read Access During delegation, the base layer mainta...
(QB_NEW_EN)
[grammar] ~341-~341: There might be a mistake here.
Context: ... access to delegated accounts, ensuring: - Composability: Other programs can stil...
(QB_NEW_EN)
[grammar] ~348-~348: There might be a mistake here.
Context: ...on Details #### Conditional Compilation The program uses feature flags to suppor...
(QB_NEW_EN)
[grammar] ~366-~366: There might be a mistake here.
Context: ...nnotation } ``` #### Commit Annotations The #[commit] macro automatically hand...
(QB_NEW_EN)
[grammar] ~367-~367: There might be a mistake here.
Context: ...dles state commitment to the base layer: - Automatic Batching: Multiple operation...
(QB_NEW_EN)
[grammar] ~372-~372: There might be a mistake here.
Context: ...ically reverted #### Session Management Ephemeral Rollup sessions are managed th...
(QB_NEW_EN)
[grammar] ~382-~382: There might be a mistake here.
Context: ...ormance Benefits #### Latency Reduction - Base Layer: 400ms average block time o...
(QB_NEW_EN)
[grammar] ~383-~383: There might be a mistake here.
Context: ...er**: 400ms average block time on Solana - Ephemeral Rollup: 10-50ms execution ti...
(QB_NEW_EN)
[grammar] ~384-~384: There might be a mistake here.
Context: ...: 10-50ms execution time for chess moves - User Experience: Near-instantaneous mo...
(QB_NEW_EN)
[grammar] ~387-~387: There might be a mistake here.
Context: ...d board updates #### Throughput Scaling - Horizontal Scaling: Multiple rollups c...
(QB_NEW_EN)
[grammar] ~392-~392: There might be a mistake here.
Context: ...ng active sessions #### Cost Efficiency - Reduced Base Layer Load: Only final st...
(QB_NEW_EN)
[grammar] ~508-~508: There might be a mistake here.
Context: ...e Handling Castling Implementation: - Validates king and rook positions - Chec...
(QB_NEW_EN)
[grammar] ~509-~509: There might be a mistake here.
Context: ...n**: - Validates king and rook positions - Checks for intervening pieces - Ensures ...
(QB_NEW_EN)
[grammar] ~510-~510: There might be a mistake here.
Context: ...ositions - Checks for intervening pieces - Ensures neither piece has moved previous...
(QB_NEW_EN)
[grammar] ~511-~511: There might be a mistake here.
Context: ...sures neither piece has moved previously - Verifies king is not in check **En Pass...
(QB_NEW_EN)
[grammar] ~514-~514: There might be a mistake here.
Context: ...is not in check En Passant Capture: - Tracks pawn double-moves for en passant ...
(QB_NEW_EN)
[grammar] ~515-~515: There might be a mistake here.
Context: ...ouble-moves for en passant opportunities - Validates capture conditions - Removes c...
(QB_NEW_EN)
[grammar] ~516-~516: There might be a mistake here.
Context: ...rtunities - Validates capture conditions - Removes captured pawn from board **Pawn...
(QB_NEW_EN)
[grammar] ~519-~519: There might be a mistake here.
Context: ...red pawn from board Pawn Promotion: - Detects pawns reaching the opposite end ...
(QB_NEW_EN)
[grammar] ~603-~603: There might be a mistake here.
Context: ...atically detects game-ending conditions: - Checkmate Detection: Validates that th...
(QB_NEW_EN)
[grammar] ~605-~605: There might be a mistake here.
Context: ...es positions where no legal moves exist but king is not in check - **Draw Condition...
(QB_NEW_EN)
[grammar] ~632-~632: There might be a mistake here.
Context: ...Installation and Setup Prerequisites: - Node.js 18+ - TypeScript 4.9+ **Install...
(QB_NEW_EN)
[grammar] ~633-~633: There might be a mistake here.
Context: ... Setup Prerequisites: - Node.js 18+ - TypeScript 4.9+ Installation: ```ba...
(QB_NEW_EN)
[grammar] ~641-~641: There might be a mistake here.
Context: ...ogram/token ``` Wallet Integration: The SDK works with any wallet implementi...
(QB_NEW_EN)
[grammar] ~825-~825: There might be a mistake here.
Context: ..., error); } } ``` Error Categories: - InvalidMoveError: Chess rule violations - `GameNotFoundE...
(QB_NEW_EN)
[grammar] ~826-~826: There might be a mistake here.
Context: ...InvalidMoveError: Chess rule violations - GameNotFoundError: Invalid game references - Unauthorize...
(QB_NEW_EN)
[grammar] ~827-~827: There might be a mistake here.
Context: ...eNotFoundError: Invalid game references - UnauthorizedPlayerError: Permission violations - InsufficientF...
(QB_NEW_EN)
[grammar] ~828-~828: There might be a mistake here.
Context: ...rizedPlayerError: Permission violations - InsufficientFundsError: Wallet balance issues - NetworkError`...
(QB_NEW_EN)
[grammar] ~829-~829: There might be a mistake here.
Context: ...icientFundsError: Wallet balance issues - NetworkError`: RPC connectivity issues ### 6.7 Integ...
(QB_NEW_EN)
[grammar] ~834-~834: There might be a mistake here.
Context: ...Patterns Event-Driven Architecture: The SDK supports real-time game state mo...
(QB_NEW_EN)
[grammar] ~900-~900: There might be a mistake here.
Context: ...r); ``` Caching and State Management: - Local game state caching to reduce RPC c...
(QB_NEW_EN)
[grammar] ~901-~901: There might be a mistake here.
Context: ...l game state caching to reduce RPC calls - Optimistic UI updates with rollback on f...
(QB_NEW_EN)
[grammar] ~902-~902: There might be a mistake here.
Context: ...stic UI updates with rollback on failure - Efficient board state serialization - Mi...
(QB_NEW_EN)
[grammar] ~903-~903: There might be a mistake here.
Context: ...re - Efficient board state serialization - Minimal account data fetching The Check...
(QB_NEW_EN)
[grammar] ~914-~914: There might be a mistake here.
Context: ...ty with user adoption: Platform Fees: - Base platform fee: 2.5% of entry fees - ...
(QB_NEW_EN)
[grammar] ~915-~915: There might be a mistake here.
Context: ... - Base platform fee: 2.5% of entry fees - Volume-based discounts for high-activity...
(QB_NEW_EN)
[grammar] ~916-~916: There might be a mistake here.
Context: ... discounts for high-activity integrators - Dynamic fee adjustment based on network ...
(QB_NEW_EN)
[grammar] ~919-~919: There might be a mistake here.
Context: ...ongestion Integrator Revenue Sharing: - Integrators earn 1-3% commission on game...
(QB_NEW_EN)
[grammar] ~936-~936: There might be a mistake here.
Context: ...egrator_fee; ``` Winner Distribution: - Winner receives 100% of prize pool - Dra...
(QB_NEW_EN)
[grammar] ~956-~956: There might be a mistake here.
Context: ...iple security layers: Access Control: - Player-specific move validation - Time-b...
(QB_NEW_EN)
[grammar] ~957-~957: There might be a mistake here.
Context: ...rol:** - Player-specific move validation - Time-based game state transitions - Auth...
(QB_NEW_EN)
[grammar] ~958-~958: There might be a mistake here.
Context: ...tion - Time-based game state transitions - Authority-based administrative functions...
(QB_NEW_EN)
[grammar] ~961-~961: There might be a mistake here.
Context: ...trative functions Financial Security: - Escrow-based prize pool management - Ato...
(QB_NEW_EN)
[grammar] ~962-~962: There might be a mistake here.
Context: ...:** - Escrow-based prize pool management - Atomic win/loss settlements - Protection...
(QB_NEW_EN)
[grammar] ~963-~963: There might be a mistake here.
Context: ...management - Atomic win/loss settlements - Protection against reentrancy attacks *...
(QB_NEW_EN)
[grammar] ~966-~966: There might be a mistake here.
Context: ...st reentrancy attacks Game Integrity: - On-chain move validation prevents cheati...
(QB_NEW_EN)
[grammar] ~975-~975: There might be a mistake here.
Context: ...n security through: State Delegation: - Temporary delegation of account authorit...
(QB_NEW_EN)
[grammar] ~976-~976: There might be a mistake here.
Context: ...emporary delegation of account authority - Automatic reversion to main chain - Cryp...
(QB_NEW_EN)
[grammar] ~977-~977: There might be a mistake here.
Context: ...rity - Automatic reversion to main chain - Cryptographic proof of state transitions...
(QB_NEW_EN)
[grammar] ~980-~980: There might be a mistake here.
Context: ... state transitions Validator Network: - Decentralized validation of rollup state...
(QB_NEW_EN)
[grammar] ~981-~981: There might be a mistake here.
Context: ...ecentralized validation of rollup states - Economic incentives for honest behavior ...
(QB_NEW_EN)
[grammar] ~982-~982: There might be a mistake here.
Context: ... Economic incentives for honest behavior - Slashing conditions for malicious actors...
(QB_NEW_EN)
[grammar] ~991-~991: There might be a mistake here.
Context: ...ance improvements: Transaction Speed: - Move confirmation: <100ms (vs 400ms on m...
(QB_NEW_EN)
[grammar] ~992-~992: There might be a mistake here.
Context: ...nfirmation: <100ms (vs 400ms on mainnet) - Game state updates: Real-time - Batch se...
(QB_NEW_EN)
[grammar] ~993-~993: There might be a mistake here.
Context: ...mainnet) - Game state updates: Real-time - Batch settlement: Every 2-4 seconds **C...
(QB_NEW_EN)
[grammar] ~996-~996: There might be a mistake here.
Context: ...t: Every 2-4 seconds Cost Efficiency: - Per-move cost: ~$0.0001 (vs $0.01 on mai...
(QB_NEW_EN)
[grammar] ~997-~997: There might be a mistake here.
Context: ...ove cost: ~$0.0001 (vs $0.01 on mainnet) - Game creation: ~$0.001 - Settlement: Sta...
(QB_NEW_EN)
[grammar] ~998-~998: There might be a mistake here.
Context: ....01 on mainnet) - Game creation: ~$0.001 - Settlement: Standard Solana fees ### 9....
(QB_NEW_EN)
[grammar] ~1005-~1005: There might be a mistake here.
Context: ...tiple mechanisms: Horizontal Scaling: - Multiple rollup instances for different ...
(QB_NEW_EN)
[grammar] ~1006-~1006: There might be a mistake here.
Context: ...ollup instances for different game types - Geographic distribution of rollup valida...
(QB_NEW_EN)
[grammar] ~1007-~1007: There might be a mistake here.
Context: ...raphic distribution of rollup validators - Load balancing across rollup endpoints ...
(QB_NEW_EN)
[grammar] ~1010-~1010: There might be a mistake here.
Context: ...llup endpoints Vertical Optimization: - Efficient board state encoding (64 bytes...
(QB_NEW_EN)
[grammar] ~1011-~1011: There might be a mistake here.
Context: ...fficient board state encoding (64 bytes) - Compressed move representation - Optimiz...
(QB_NEW_EN)
[grammar] ~1012-~1012: There might be a mistake here.
Context: ... bytes) - Compressed move representation - Optimized instruction layouts ### 9.3 N...
(QB_NEW_EN)
[grammar] ~1027-~1027: There might be a mistake here.
Context: ... (Q3-Q4 2025) Advanced Game Features: - Tournament bracket system - Team-based c...
(QB_NEW_EN)
[grammar] ~1028-~1028: There might be a mistake here.
Context: ... Features:** - Tournament bracket system - Team-based competitions - Spectator mode...
(QB_NEW_EN)
[grammar] ~1029-~1029: There might be a mistake here.
Context: ...bracket system - Team-based competitions - Spectator mode with live commentary - Ad...
(QB_NEW_EN)
[grammar] ~1030-~1030: There might be a mistake here.
Context: ...ns - Spectator mode with live commentary - Advanced time controls (Fischer, Bronste...
(QB_NEW_EN)
[grammar] ~1033-~1033: There might be a mistake here.
Context: ...er, Bronstein) Platform Improvements: - Mobile SDK development - Enhanced analyt...
(QB_NEW_EN)
[grammar] ~1034-~1034: There might be a mistake here.
Context: ...Improvements:** - Mobile SDK development - Enhanced analytics dashboard - Automated...
(QB_NEW_EN)
[grammar] ~1035-~1035: There might be a mistake here.
Context: ...velopment - Enhanced analytics dashboard - Automated market making for entry fees -...
(QB_NEW_EN)
[grammar] ~1036-~1036: There might be a mistake here.
Context: ...- Automated market making for entry fees - Integration with chess rating systems #...
(QB_NEW_EN)
[grammar] ~1041-~1041: There might be a mistake here.
Context: ...nts (Q1-Q2 2026) Ecosystem Expansion: - Additional board games (Go, Checkers, Ba...
(QB_NEW_EN)
[grammar] ~1042-~1042: There might be a mistake here.
Context: ...l board games (Go, Checkers, Backgammon) - Cross-game tournaments and leagues - NFT...
(QB_NEW_EN)
[grammar] ~1043-~1043: There might be a mistake here.
Context: ...on) - Cross-game tournaments and leagues - NFT integration for unique pieces and bo...
(QB_NEW_EN)
[grammar] ~1044-~1044: There might be a mistake here.
Context: ...integration for unique pieces and boards - Streaming and content creator tools **T...
(QB_NEW_EN)
[grammar] ~1047-~1047: There might be a mistake here.
Context: ...creator tools Technical Advancements: - Zero-knowledge proof integration for pri...
(QB_NEW_EN)
[grammar] ~1048-~1048: There might be a mistake here.
Context: ...edge proof integration for private games - Advanced AI opponent integration - Cross...
(QB_NEW_EN)
[grammar] ~1049-~1049: There might be a mistake here.
Context: ...games - Advanced AI opponent integration - Cross-chain bridge development - Enhance...
(QB_NEW_EN)
[grammar] ~1050-~1050: There might be a mistake here.
Context: ...gration - Cross-chain bridge development - Enhanced MEV protection ### 10.3 Long-t...
(QB_NEW_EN)
[grammar] ~1055-~1055: There might be a mistake here.
Context: ...26+) Governance and Decentralization: - DAO governance implementation - Communit...
(QB_NEW_EN)
[grammar] ~1056-~1056: There might be a mistake here.
Context: ...ation:** - DAO governance implementation - Community-driven feature development - D...
(QB_NEW_EN)
[grammar] ~1057-~1057: There might be a mistake here.
Context: ...n - Community-driven feature development - Decentralized tournament organization - ...
(QB_NEW_EN)
[grammar] ~1058-~1058: There might be a mistake here.
Context: ... - Decentralized tournament organization - Player-owned platform evolution ## 11. ...
(QB_NEW_EN)
[grammar] ~1065-~1065: There might be a mistake here.
Context: ... that delivers: Technical Excellence: - Sub-100ms move confirmations - 99%+ cost...
(QB_NEW_EN)
[grammar] ~1066-~1066: There might be a mistake here.
Context: ...llence:** - Sub-100ms move confirmations - 99%+ cost reduction compared to mainnet ...
(QB_NEW_EN)
[grammar] ~1067-~1067: There might be a mistake here.
Context: ... reduction compared to mainnet execution - Seamless integration with existing Solan...
(QB_NEW_EN)
[grammar] ~1068-~1068: There might be a mistake here.
Context: ...tion with existing Solana infrastructure - Robust security through cryptographic st...
(QB_NEW_EN)
[grammar] ~1071-~1071: There might be a mistake here.
Context: ...state delegation Economic Innovation: - Sustainable multi-tier fee structure - R...
(QB_NEW_EN)
[grammar] ~1072-~1072: There might be a mistake here.
Context: ...* - Sustainable multi-tier fee structure - Revenue sharing with platform integrator...
(QB_NEW_EN)
[grammar] ~1073-~1073: There might be a mistake here.
Context: ...evenue sharing with platform integrators - Transparent, escrow-based prize distribu...
(QB_NEW_EN)
[grammar] ~1074-~1074: There might be a mistake here.
Context: ...sparent, escrow-based prize distribution - Support for diverse token economies **D...
(QB_NEW_EN)
[grammar] ~1077-~1077: There might be a mistake here.
Context: ...token economies Developer Experience: - Comprehensive TypeScript SDK - Clean, in...
(QB_NEW_EN)
[grammar] ~1078-~1078: There might be a mistake here.
Context: ...rience:** - Comprehensive TypeScript SDK - Clean, intuitive API design - Extensive ...
(QB_NEW_EN)
[grammar] ~1079-~1079: There might be a mistake here.
Context: ...Script SDK - Clean, intuitive API design - Extensive documentation and examples - M...
(QB_NEW_EN)
[grammar] ~1080-~1080: There might be a mistake here.
Context: ...n - Extensive documentation and examples - Multiple integration patterns **User Be...
(QB_NEW_EN)
[grammar] ~1083-~1083: There might be a mistake here.
Context: ...e integration patterns User Benefits: - Instant gameplay feedback - Minimal tran...
(QB_NEW_EN)
[grammar] ~1084-~1084: There might be a mistake here.
Context: ... Benefits:** - Instant gameplay feedback - Minimal transaction costs - Provably fai...
(QB_NEW_EN)
[grammar] ~1085-~1085: There might be a mistake here.
Context: ...lay feedback - Minimal transaction costs - Provably fair game mechanics - Seamless ...
(QB_NEW_EN)
[grammar] ~1086-~1086: There might be a mistake here.
Context: ...ion costs - Provably fair game mechanics - Seamless wallet integration The platfor...
(QB_NEW_EN)
[grammar] ~1093-~1093: There might be a mistake here.
Context: ...has arrived. This chess platform stands as testament to what becomes possible when...
(QB_NEW_EN)
[style] ~1093-~1093: This sentence construction might be considered wordy, consider shortening it.
Context: ...ology meets timeless gameplay, creating experiences that are simultaneously familiar and revolutionary. --- *For technical...
(A_VERY_ORDERED_SENTENCE)
apps/docs/content/docs/whitepaper/index.mdx
[grammar] ~9-~9: There might be a mistake here.
Context: ...le maintaining full Solana compatibility - Complete On-Chain Logic: All game rule...
(QB_NEW_EN)
[grammar] ~10-~10: There might be a mistake here.
Context: ...erations executed transparently on-chain - Multi-Tenant Architecture: Scalable pl...
(QB_NEW_EN)
[grammar] ~11-~11: There might be a mistake here.
Context: ...grators with customizable fee structures - Seamless Integration: TypeScript SDK e...
(QB_NEW_EN)
[grammar] ~19-~19: There might be a mistake here.
Context: ...ate fragmentation or bridge dependencies - Horizontal scaling through on-demand Eph...
(QB_NEW_EN)
[grammar] ~20-~20: There might be a mistake here.
Context: ...tal scaling through on-demand Ephemeral Rollups - Native Solana ecosystem integration - Tr...
(QB_NEW_EN)
[grammar] ~21-~21: There might be a mistake here.
Context: ...ps - Native Solana ecosystem integration - Transparent and immutable game mechanics...
(QB_NEW_EN)
[grammar] ~173-~173: There might be a mistake here.
Context: ...Chess players and third-party developers - Integration Layer: SDK, wallets, and f...
(QB_NEW_EN)
[grammar] ~174-~174: There might be a mistake here.
Context: ...*: SDK, wallets, and frontend interfaces - Platform Layer: Multiple integrator pl...
(QB_NEW_EN)
[grammar] ~175-~175: There might be a mistake here.
Context: ...tor platforms with custom configurations - Ephemeral Rollup Layer: High-speed exe...
(QB_NEW_EN)
[grammar] ~176-~176: There might be a mistake here.
Context: ... execution environments for active games - Solana L1 Layer: Permanent state stora...
(QB_NEW_EN)
[grammar] ~246-~246: There might be a mistake here.
Context: ... configurable parameters - join_game: Enable second player to join open games - `can...
(QB_NEW_EN)
[grammar] ~252-~252: There might be a mistake here.
Context: ...ndling move validation and state updates - Comprehensive chess rule validation incl...
(QB_NEW_EN)
[grammar] ~253-~253: There might be a mistake here.
Context: ...ule validation including check detection - Special move support (castling, en passa...
(QB_NEW_EN)
[grammar] ~258-~258: There might be a mistake here.
Context: ...) Draw Mechanics: - offer_draw: Propose draw to opponent - accept_draw: Accep...
(QB_NEW_EN)
[grammar] ~258-~258: There might be a mistake here.
Context: ...hanics**: - offer_draw: Propose draw to opponent - accept_draw: Accept pendin...
(QB_NEW_EN)
[grammar] ~321-~321: There might be a mistake here.
Context: ...against double-spending and manipulation - Support for partial refunds in case of d...
(QB_NEW_EN)
[grammar] ~328-~328: There might be a mistake here.
Context: ...Base fees collected by the chess program - Integrator Fees: Additional fees colle...
(QB_NEW_EN)
[grammar] ~329-~329: There might be a mistake here.
Context: ... fees collected by third-party platforms - Transparent Calculation: All fees calc...
(QB_NEW_EN)
[grammar] ~416-~416: There might be a mistake here.
Context: ...er**: 400ms average block time on Solana - Ephemeral Rollup: 10-50ms execution ti...
(QB_NEW_EN)
[grammar] ~417-~417: There might be a mistake here.
Context: ...: 10-50ms execution time for chess moves - User Experience: Near-instantaneous mo...
(QB_NEW_EN)
[grammar] ~549-~549: There might be a mistake here.
Context: ...**: - Validates king and rook positions - Checks for intervening pieces - Ensures ...
(QB_NEW_EN)
[grammar] ~550-~550: There might be a mistake here.
Context: ...ositions - Checks for intervening pieces - Ensures neither piece has moved previous...
(QB_NEW_EN)
[grammar] ~551-~551: There might be a mistake here.
Context: ...sures neither piece has moved previously - Verifies king is not in check **En Pass...
(QB_NEW_EN)
[grammar] ~556-~556: There might be a mistake here.
Context: ...ouble-moves for en passant opportunities - Validates capture conditions - Removes c...
(QB_NEW_EN)
[grammar] ~557-~557: There might be a mistake here.
Context: ...rtunities - Validates capture conditions - Removes captured pawn from board **Pawn...
(QB_NEW_EN)
[grammar] ~562-~562: There might be a mistake here.
Context: ... Detects pawns reaching the opposite end - Validates promotion piece selection - Up...
(QB_NEW_EN)
[grammar] ~563-~563: There might be a mistake here.
Context: ...nd - Validates promotion piece selection - Updates board state with promoted piece ...
(QB_NEW_EN)
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Context: ...es positions where no legal moves exist but king is not in check - **Draw Condition...
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Context: ...Setup Prerequisites: - Node.js 18+ - TypeScript 4.9+ Installation: ```b...
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Context: ...ogram/token ``` Wallet Integration: The SDK works with any wallet implementi...
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Context: ...InvalidMoveError: Chess rule violations - GameNotFoundError: Invalid game references - Unauthorize...
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Context: ...eNotFoundError: Invalid game references - UnauthorizedPlayerError: Permission violations - InsufficientF...
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Context: ...rizedPlayerError: Permission violations - InsufficientFundsError: Wallet balance issues - NetworkError`...
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Context: ...icientFundsError: Wallet balance issues - NetworkError`: RPC connectivity issues ### 6.7 Integ...
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Context: ...Patterns Event-Driven Architecture: The SDK supports real-time game state mo...
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Context: ...l game state caching to reduce RPC calls - Optimistic UI updates with rollback on f...
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Context: ...stic UI updates with rollback on failure - Efficient board state serialization - Mi...
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Context: ...re - Efficient board state serialization - Minimal account data fetching The Check...
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Context: ... - Base platform fee: 2.5% of entry fees - Volume-based discounts for high-activity...
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Context: ... discounts for high-activity integrators - Dynamic fee adjustment based on network ...
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Context: ...Distribution:** - Winner receives 100% of prize pool - Draw results in 50/50 spli...
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Context: ...ol:** - Player-specific move validation - Time-based game state transitions - Auth...
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Context: ...tion - Time-based game state transitions - Authority-based administrative functions...
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Context: ...** - Escrow-based prize pool management - Atomic win/loss settlements - Protection...
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Context: ...management - Atomic win/loss settlements - Protection against reentrancy attacks *...
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Context: ...emporary delegation of account authority - Automatic reversion to main chain - Cryp...
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Context: ...rity - Automatic reversion to main chain - Cryptographic proof of state transitions...
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Context: ...ecentralized validation of rollup states - Economic incentives for honest behavior ...
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Context: ... Economic incentives for honest behavior - Slashing conditions for malicious actors...
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Context: ...nfirmation: <100ms (vs 400ms on mainnet) - Game state updates: Real-time - Batch se...
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Context: ...mainnet) - Game state updates: Real-time - Batch settlement: Every 2-4 seconds **C...
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Context: ...ove cost: ~$0.0001 (vs $0.01 on mainnet) - Game creation: ~$0.001 - Settlement: Sta...
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Context: ....01 on mainnet) - Game creation: ~$0.001 - Settlement: Standard Solana fees ### 9....
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Context: ...ollup instances for different game types - Geographic distribution of rollup valida...
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Context: ...raphic distribution of rollup validators - Load balancing across rollup endpoints ...
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Context: ...fficient board state encoding (64 bytes) - Compressed move representation - Optimiz...
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Context: ... bytes) - Compressed move representation - Optimized instruction layouts ### 9.3 N...
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Context: ...Features:** - Tournament bracket system - Team-based competitions - Spectator mode...
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Context: ...bracket system - Team-based competitions - Spectator mode with live commentary - Ad...
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Context: ...ns - Spectator mode with live commentary - Advanced time controls (Fischer, Bronste...
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Context: ...mprovements:** - Mobile SDK development - Enhanced analytics dashboard - Automated...
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Context: ...velopment - Enhanced analytics dashboard - Automated market making for entry fees -...
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Context: ...- Automated market making for entry fees - Integration with chess rating systems #...
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Context: ...l board games (Go, Checkers, Backgammon) - Cross-game tournaments and leagues - NFT...
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Context: ...on) - Cross-game tournaments and leagues - NFT integration for unique pieces and bo...
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Context: ...integration for unique pieces and boards - Streaming and content creator tools **T...
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Context: ...edge proof integration for private games - Advanced AI opponent integration - Cross...
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Context: ...gration - Cross-chain bridge development - Enhanced MEV protection ### 10.3 Long-t...
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Context: ...tion:** - DAO governance implementation - Community-driven feature development - D...
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Context: ...n - Community-driven feature development - Decentralized tournament organization - ...
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Context: ... - Decentralized tournament organization - Player-owned platform evolution ## 11. ...
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Context: ...lence:** - Sub-100ms move confirmations - 99%+ cost reduction compared to mainnet ...
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Context: ... reduction compared to mainnet execution - Seamless integration with existing Solan...
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Context: ...tion with existing Solana infrastructure - Robust security through cryptographic st...
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Context: ... - Sustainable multi-tier fee structure - Revenue sharing with platform integrator...
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Context: ...evenue sharing with platform integrators - Transparent, escrow-based prize distribu...
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Context: ...sparent, escrow-based prize distribution - Support for diverse token economies **D...
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Context: ...ience:** - Comprehensive TypeScript SDK - Clean, intuitive API design - Extensive ...
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Context: ...Script SDK - Clean, intuitive API design - Extensive documentation and examples - M...
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Context: ...n - Extensive documentation and examples - Multiple integration patterns **User Be...
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Context: ...Benefits:** - Instant gameplay feedback - Minimal transaction costs - Provably fai...
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Context: ...lay feedback - Minimal transaction costs - Provably fair game mechanics - Seamless ...
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Context: ...ion costs - Provably fair game mechanics - Seamless wallet integration The platfor...
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Context: ...has arrived. This chess platform stands as testament to what becomes possible when...
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Context: ...ology meets timeless gameplay, creating experiences that are simultaneously familiar and revolutionary. --- _For technical...
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🪛 markdownlint-cli2 (0.17.2)
WHITEPAPER.md
50-50: Fenced code blocks should have a language specified
(MD040, fenced-code-language)
| pub castling_rights: CastlingRights, | ||
| pub en_passant_square: Option<u8>, | ||
| pub king_white_square: u8, | ||
| pub king_black_square: u8, | ||
| pub last_move: Option<LastMove>, | ||
| ``` |
There was a problem hiding this comment.
🛠️ Refactor suggestion
State/time tracking mismatch: last_move_at used but not defined.
Add last_move_at to state (Option A) to match the later snippet.
pub last_move: Option<LastMove>,
+pub last_move_at: Option<i64>, // unix tsAlso applies to: 611-616
🤖 Prompt for AI Agents
In apps/docs/content/docs/whitepaper/index.mdx around lines 208-213, the state
struct is missing the last_move_at field referenced later; add a last_move_at
field (e.g. last_move_at: Option<...>) to the state with the same timestamp type
used elsewhere in the document, then update the other matching location (lines
~611-616) to include the same field so the snippets stay consistent.
| // Piece encoding: 0xTC where T = type, C = color | ||
| // Color: 1 = White, 2 = Black | ||
| // Type: 1 = Pawn, 2 = Knight, 3 = Bishop, 4 = Rook, 5 = Queen, 6 = King | ||
|
|
||
| // Examples: | ||
| // 0x11 = White Pawn | ||
| // 0x26 = Black King | ||
| // 0x00 = Empty Square | ||
| ``` |
There was a problem hiding this comment.
Fix piece-encoding docs: 0xTC vs 0xCT inconsistency.
Examples and board init imply color is high nibble. Make it explicit and consistent.
-// Piece encoding: 0xTC where T = type, C = color
+// Piece encoding: 0xCT where C = color (high nibble), T = type (low nibble)
// Color: 1 = White, 2 = Black
// Type: 1 = Pawn, 2 = Knight, 3 = Bishop, 4 = Rook, 5 = Queen, 6 = King
-// 0x11 = White Pawn
-// 0x26 = Black King
+// 0x11 = White Pawn (C=1, T=1)
+// 0x26 = Black King (C=2, T=6)
+// Helpers:
+// color(piece) = piece >> 4
+// typ(piece) = piece & 0x0F- board[0] = 0x14; // White Rook on a1
- board[1] = 0x12; // White Knight on b1
+ board[0] = 0x14; // White Rook on a1 (C=1,T=4)
+ board[1] = 0x12; // White Knight on b1 (C=1,T=2)
- board[56] = 0x24; // Black Rook on a8
+ board[56] = 0x24; // Black Rook on a8 (C=2,T=4)Also applies to: 458-465
🤖 Prompt for AI Agents
In apps/docs/content/docs/whitepaper/index.mdx around lines 441 to 449 (and
similarly 458 to 465), the piece-encoding comments are inconsistent about nibble
order: the text uses 0xTC while examples/board init use color as the high
nibble. Change the wording to state explicitly that encoding is 0xCT (C = color
in high nibble, T = type in low nibble), update the comment line ("Piece
encoding: 0xCT where C = color, T = type"), adjust the Color/Type labels to
match that order, and rewrite the examples to use 0xCT (e.g., 0x11 = White Pawn
if white=1 in high nibble, 0x62 = Black King if black=6, 0x00 = Empty) so the
docs and board init are consistent.
| utils::is_valid_chess_move( | ||
| &game_account.board_state, | ||
| from_square, | ||
| to_square, | ||
| piece_type, | ||
| &game_account.castling_rights, | ||
| game_account.en_passant_square, | ||
| promotion_piece.clone() | ||
| )?, | ||
| ChessError::InvalidMove | ||
| ); |
There was a problem hiding this comment.
Undefined vars in move handler (piece_type, player_color).
Derive them from piece_at_from (or current turn) before validations.
// 3. Piece validation
let piece_at_from = game_account.get_piece_at(from_square);
+ let piece_type = PieceType::from_byte(piece_at_from);
+ let player_color = PlayerColor::from_byte(piece_at_from);
require!(piece_at_from != 0, ChessError::NoPieceAtSquare);Also applies to: 529-538
| // Dual RPC configuration for standard Solana and Ephemeral Rollups | ||
| const rpc = createSolanaRpc("https://api.devnet.solana.com"); | ||
| const erRpc = createSolanaRpc("https://devnet.magicblock.app"); | ||
|
|
||
| // Initialize SDK | ||
| const chessMateSDK = new ChessGameSDK(); | ||
| ``` | ||
|
|
There was a problem hiding this comment.
💡 Verification agent
🧩 Analysis chain
Use cluster-appropriate token mints; avoid hard-coding mainnet USDC on devnet.
Parametrize the mint via env and document values per cluster.
-const rpc = createSolanaRpc("https://api.devnet.solana.com");
+const rpc = createSolanaRpc(process.env.SOLANA_RPC_URL!);
-const erRpc = createSolanaRpc("https://devnet.magicblock.app");
+const erRpc = createSolanaRpc(process.env.EPHEMERAL_ROLLUP_RPC_URL!);- tokenMint: address("EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"), // USDC
+ tokenMint: address(process.env.USDC_MINT!), // devnet: 4zMMC9..., mainnet: EPjF...- tokenMint: address("EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"),
+ tokenMint: address(process.env.USDC_MINT!),- tokenMint: address("EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"),
+ tokenMint: address(process.env.USDC_MINT!),Would you like me to add a small cluster→mint table to this page?
Also applies to: 723-737, 781-787
🏁 Script executed:
#!/bin/bash
# Search for hard-coded RPC URLs and USDC mints in the whitepaper MDX
file="apps/docs/content/docs/whitepaper/index.mdx"
grep -n "createSolanaRpc" "$file"
grep -n "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v" "$file"
grep -n "tokenMint" "$file"Length of output: 928
Parametrize RPC URLs and token mints
Replace hard-coded URLs at lines 669–670 with process.env.SOLANA_RPC_URL and process.env.EPHEMERAL_ROLLUP_RPC_URL, and swap out the mainnet USDC mint at lines 727, 746 and 785 for process.env.USDC_MINT. Add a small table mapping each cluster (devnet, mainnet) to its corresponding USDC mint address.
🤖 Prompt for AI Agents
In apps/docs/content/docs/whitepaper/index.mdx around lines 668–675 and the USDC
mint usages at lines 727, 746 and 785, replace the hard-coded RPC URLs
(currently https://api.devnet.solana.com and https://devnet.magicblock.app) with
process.env.SOLANA_RPC_URL and process.env.EPHEMERAL_ROLLUP_RPC_URL
respectively, and replace the hard-coded mainnet USDC mint addresses at lines
727, 746 and 785 with process.env.USDC_MINT; also add a small table in the doc
mapping each cluster (devnet, mainnet) to its corresponding USDC mint address
(use the env var names as placeholders) so readers know which mint applies to
each cluster. Ensure references in code blocks and prose are updated to use the
env var names consistently.
|
|
||
| const { instruction, integratorConfigPDA } = | ||
| await chessMateSDK.initializeIntegratorIx(params); |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Fix transaction sending examples: import sender and pass Instructions (not wrapper objects).
Explicitly import a send helper and extract the instruction field(s).
-const { instruction } = await chessMateSDK.makeMoveIx(moveParams);
-const signature = await sendTransaction(erRpc, [instruction], signer);
+import { sendAndConfirm } from "@solana/kit"; // adjust to your real helper
+const { instruction } = await chessMateSDK.makeMoveIx(moveParams);
+const signature = await sendAndConfirm(erRpc, [instruction], signer);-const instructions = [
- await chessMateSDK.makeMoveIx(moveParams1),
- await chessMateSDK.makeMoveIx(moveParams2),
-];
-const signature = await sendTransaction(erRpc, instructions, signer);
+const ix1 = (await chessMateSDK.makeMoveIx(moveParams1)).instruction;
+const ix2 = (await chessMateSDK.makeMoveIx(moveParams2)).instruction;
+const signature = await sendAndConfirm(erRpc, [ix1, ix2], signer);Also applies to: 896-898
🤖 Prompt for AI Agents
In apps/docs/content/docs/whitepaper/index.mdx around lines 714-716 (and
similarly lines 896-898), the example uses the returned wrapper object directly
when sending a transaction; instead import and use the appropriate send helper
(e.g., sendTransaction/sendInstruction helper) and pass the actual
Instruction(s) extracted from the wrapper (e.g., instruction or instructions
field) instead of the wrapper object; update the import statements to include
the send helper, destructure the instruction(s) from the initializeIntegratorIx
result, and call the send helper with those Instruction objects and the required
signers/context.
05f0d69 to
4871493
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There was a problem hiding this comment.
Actionable comments posted: 6
♻️ Duplicate comments (10)
WHITEPAPER.md (10)
405-413: Fix encoding scheme inconsistency (0xTC vs 0xCT).-// Piece encoding: 0xTC where T = type, C = color +// Piece encoding: 0xCT where C = color (high nibble), T = type (low nibble) +// Helpers: color(piece) = piece >> 4; typ(piece) = piece & 0x0F
417-431: Align board init comments with corrected 0xCT encoding.- board[0] = 0x14; // White Rook on a1 - board[1] = 0x12; // White Knight on b1 + board[0] = 0x14; // White Rook on a1 (C=1,T=4) + board[1] = 0x12; // White Knight on b1 (C=1,T=2) @@ - board[56] = 0x24; // Black Rook on a8 + board[56] = 0x24; // Black Rook on a8 (C=2,T=4)
476-504: Undefinedpiece_typeandplayer_colorin handler snippet.// 3. Piece validation - let piece_at_from = game_account.get_piece_at(from_square); + let piece_at_from = game_account.get_piece_at(from_square); + let piece_type = PieceType::from_byte(piece_at_from); + let player_color = PlayerColor::from_byte(piece_at_from); require!(piece_at_from != 0, ChessError::NoPieceAtSquare);
201-206: Model/time tracking mismatch (last_movevslast_move_at).Option A (add field):
pub last_move: Option<LastMove>, +pub last_move_at: Option<i64>, // unix tsOr update time snippet to read
last_move.timestamp.
565-585: Update time-control snippet per chosen timestamp source.-let time_taken = if let Some(last_move_time) = game_account.last_move_at { - (clock.unix_timestamp - last_move_time) as u32 +let time_taken = if let Some(last_move) = &game_account.last_move { + (clock.unix_timestamp - last_move.timestamp) as u32
673-690: Devnet RPC with mainnet USDC mint; parametrize by cluster.- tokenMint: address("EPjFW...Dt1v"), // USDC + tokenMint: address(process.env.USDC_MINT!), // per cluster (devnet/mainnet)
692-700: Repeat of hardcoded USDC mint in join example.- tokenMint: address("EPjFW...Dt1v") + tokenMint: address(process.env.USDC_MINT!)
729-738: Repeat of hardcoded USDC mint in claim example.- tokenMint: address("EPjFW...Dt1v") + tokenMint: address(process.env.USDC_MINT!)
714-716:sendTransactionnot imported; passInstructions only.-const { instruction } = await chessMateSDK.makeMoveIx(moveParams); -const signature = await sendTransaction(erRpc, [instruction], signer); +import { sendAndConfirm } from "@solana/kit"; +const { instruction } = await chessMateSDK.makeMoveIx(moveParams); +const signature = await sendAndConfirm(erRpc, [instruction], signer);
896-898: Batch example passes objects, notInstructions.-const instructions = [ - await chessMateSDK.makeMoveIx(moveParams1), - await chessMateSDK.makeMoveIx(moveParams2) -]; -const signature = await sendTransaction(erRpc, instructions, signer); +const ix1 = (await chessMateSDK.makeMoveIx(moveParams1)).instruction; +const ix2 = (await chessMateSDK.makeMoveIx(moveParams2)).instruction; +const signature = await sendAndConfirm(erRpc, [ix1, ix2], signer);
🧹 Nitpick comments (6)
apps/docs/content/docs/whitepaper/whitepaper.mdx (5)
462-476: Align board init comments with corrected 0xCT encoding.- board[0] = 0x14; // White Rook on a1 - board[1] = 0x12; // White Knight on b1 + board[0] = 0x14; // White Rook on a1 (C=1,T=4) + board[1] = 0x12; // White Knight on b1 (C=1,T=2) @@ - board[56] = 0x24; // Black Rook on a8 + board[56] = 0x24; // Black Rook on a8 (C=2,T=4)
618-638: Update time-control snippet to chosen timestamp source.If you adopt Option A above, keep as-is; otherwise:
-let time_taken = if let Some(last_move_time) = game_account.last_move_at { - (clock.unix_timestamp - last_move_time) as u32 +let time_taken = if let Some(last_move) = &game_account.last_move { + (clock.unix_timestamp - last_move.timestamp) as u32
755-756: Same hardcoded USDC mint in join example.- tokenMint: address("EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"), + tokenMint: address(process.env.USDC_MINT!),
793-794: Same hardcoded USDC mint in claim example.- tokenMint: address("EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"), + tokenMint: address(process.env.USDC_MINT!),
382-396: Bold performance claims; add benchmark/citation footnotes.Provide links or footnotes for latency/cost figures to increase credibility.
WHITEPAPER.md (1)
991-999: Performance and cost claims need references.Add footnotes/links to benchmarks or clearly label as targets.
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (3)
WHITEPAPER.md(1 hunks)apps/docs/content/docs/whitepaper/whitepaper.mdx(1 hunks)apps/docs/source.config.ts(2 hunks)
✅ Files skipped from review due to trivial changes (1)
- apps/docs/source.config.ts
🧰 Additional context used
🪛 LanguageTool
WHITEPAPER.md
[grammar] ~7-~7: There might be a mistake here.
Context: ... on-chain execution. Key Innovations: - Real-time Performance: Achieving sub-5...
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[grammar] ~8-~8: There might be a mistake here.
Context: ...le maintaining full Solana compatibility - Complete On-Chain Logic: All game rule...
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Context: ...erations executed transparently on-chain - Multi-Tenant Architecture: Scalable pl...
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Context: ...grators with customizable fee structures - Seamless Integration: TypeScript SDK e...
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Context: ...Fi landscape. Competitive Advantages: - No state fragmentation or bridge depende...
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Context: ...ate fragmentation or bridge dependencies - Horizontal scaling through on-demand Eph...
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[grammar] ~18-~18: There might be a mistake here.
Context: ...tal scaling through on-demand Ephemeral Rollups - Native Solana ecosystem integration - Tr...
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Context: ...ps - Native Solana ecosystem integration - Transparent and immutable game mechanics...
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[grammar] ~171-~171: There might be a mistake here.
Context: ...Chess players and third-party developers - Integration Layer: SDK, wallets, and f...
(QB_NEW_EN)
[grammar] ~172-~172: There might be a mistake here.
Context: ...*: SDK, wallets, and frontend interfaces - Platform Layer: Multiple integrator pl...
(QB_NEW_EN)
[grammar] ~173-~173: There might be a mistake here.
Context: ...tor platforms with custom configurations - Ephemeral Rollup Layer: High-speed exe...
(QB_NEW_EN)
[grammar] ~174-~174: There might be a mistake here.
Context: ... execution environments for active games - Solana L1 Layer: Permanent state stora...
(QB_NEW_EN)
[grammar] ~231-~231: There might be a mistake here.
Context: ...fecycle: Game Lifecycle Management: - create_game: Initialize new games with configurable...
(QB_NEW_EN)
[grammar] ~232-~232: There might be a mistake here.
Context: ...e new games with configurable parameters - join_game: Enable second player to join open game...
(QB_NEW_EN)
[grammar] ~233-~233: There might be a mistake here.
Context: ... configurable parameters - join_game: Enable second player to join open games - `can...
(QB_NEW_EN)
[grammar] ~233-~233: There might be a mistake here.
Context: ... Enable second player to join open games - cancel_game: Allow creators to cancel games before ...
(QB_NEW_EN)
[grammar] ~234-~234: There might be a mistake here.
Context: ...eators to cancel games before they start - forfeit_game: Enable players to concede during activ...
(QB_NEW_EN)
[grammar] ~237-~237: There might be a mistake here.
Context: ...during active games Move Execution: - make_move: Core instruction handling move validat...
(QB_NEW_EN)
[grammar] ~238-~238: There might be a mistake here.
Context: ...ndling move validation and state updates - Comprehensive chess rule validation incl...
(QB_NEW_EN)
[grammar] ~239-~239: There might be a mistake here.
Context: ...ule validation including check detection - Special move support (castling, en passa...
(QB_NEW_EN)
[grammar] ~242-~242: There might be a mistake here.
Context: ...passant, promotion) Draw Mechanics: - offer_draw: Propose draw to opponent - `accept_dra...
(QB_NEW_EN)
[grammar] ~243-~243: There might be a mistake here.
Context: ...- offer_draw: Propose draw to opponent - accept_draw: Accept pending draw offers - `reject_d...
(QB_NEW_EN)
[grammar] ~244-~244: There might be a mistake here.
Context: ...accept_draw: Accept pending draw offers - reject_draw`: Decline draw proposals **Financial Op...
(QB_NEW_EN)
[grammar] ~247-~247: There might be a mistake here.
Context: ...raw proposals Financial Operations: - claim_winnings: Distribute prize pools to winners - Au...
(QB_NEW_EN)
[grammar] ~279-~279: There might be a mistake here.
Context: ...ame_id: u64, } ``` This design enables: - White-label Integration: Third-party p...
(QB_NEW_EN)
[grammar] ~287-~287: There might be a mistake here.
Context: ...cial Architecture #### Escrow Mechanism The system implements a secure escrow me...
(QB_NEW_EN)
[grammar] ~297-~297: There might be a mistake here.
Context: ...ocked: bool, ``` Security Features: - Funds are locked in program-controlled a...
(QB_NEW_EN)
[grammar] ~303-~303: There might be a mistake here.
Context: ... in case of disputes #### Fee Structure The platform implements a dual-fee syste...
(QB_NEW_EN)
[grammar] ~304-~304: There might be a mistake here.
Context: ...e platform implements a dual-fee system: - Platform Fees: Base fees collected by ...
(QB_NEW_EN)
[grammar] ~305-~305: There might be a mistake here.
Context: ...Base fees collected by the chess program - Integrator Fees: Additional fees colle...
(QB_NEW_EN)
[grammar] ~306-~306: There might be a mistake here.
Context: ... fees collected by third-party platforms - Transparent Calculation: All fees calc...
(QB_NEW_EN)
[grammar] ~334-~334: There might be a mistake here.
Context: ...support } ``` Delegation Lifecycle: 1. Initiation: Game accounts are delegate...
(QB_NEW_EN)
[grammar] ~340-~340: There might be a mistake here.
Context: ... session ends #### Parallel Read Access During delegation, the base layer mainta...
(QB_NEW_EN)
[grammar] ~341-~341: There might be a mistake here.
Context: ... access to delegated accounts, ensuring: - Composability: Other programs can stil...
(QB_NEW_EN)
[grammar] ~348-~348: There might be a mistake here.
Context: ...on Details #### Conditional Compilation The program uses feature flags to suppor...
(QB_NEW_EN)
[grammar] ~366-~366: There might be a mistake here.
Context: ...nnotation } ``` #### Commit Annotations The #[commit] macro automatically hand...
(QB_NEW_EN)
[grammar] ~367-~367: There might be a mistake here.
Context: ...dles state commitment to the base layer: - Automatic Batching: Multiple operation...
(QB_NEW_EN)
[grammar] ~372-~372: There might be a mistake here.
Context: ...ically reverted #### Session Management Ephemeral Rollup sessions are managed th...
(QB_NEW_EN)
[grammar] ~382-~382: There might be a mistake here.
Context: ...ormance Benefits #### Latency Reduction - Base Layer: 400ms average block time o...
(QB_NEW_EN)
[grammar] ~383-~383: There might be a mistake here.
Context: ...er**: 400ms average block time on Solana - Ephemeral Rollup: 10-50ms execution ti...
(QB_NEW_EN)
[grammar] ~384-~384: There might be a mistake here.
Context: ...: 10-50ms execution time for chess moves - User Experience: Near-instantaneous mo...
(QB_NEW_EN)
[grammar] ~387-~387: There might be a mistake here.
Context: ...d board updates #### Throughput Scaling - Horizontal Scaling: Multiple rollups c...
(QB_NEW_EN)
[grammar] ~392-~392: There might be a mistake here.
Context: ...ng active sessions #### Cost Efficiency - Reduced Base Layer Load: Only final st...
(QB_NEW_EN)
[grammar] ~508-~508: There might be a mistake here.
Context: ...e Handling Castling Implementation: - Validates king and rook positions - Chec...
(QB_NEW_EN)
[grammar] ~509-~509: There might be a mistake here.
Context: ...n**: - Validates king and rook positions - Checks for intervening pieces - Ensures ...
(QB_NEW_EN)
[grammar] ~510-~510: There might be a mistake here.
Context: ...ositions - Checks for intervening pieces - Ensures neither piece has moved previous...
(QB_NEW_EN)
[grammar] ~511-~511: There might be a mistake here.
Context: ...sures neither piece has moved previously - Verifies king is not in check **En Pass...
(QB_NEW_EN)
[grammar] ~514-~514: There might be a mistake here.
Context: ...is not in check En Passant Capture: - Tracks pawn double-moves for en passant ...
(QB_NEW_EN)
[grammar] ~515-~515: There might be a mistake here.
Context: ...ouble-moves for en passant opportunities - Validates capture conditions - Removes c...
(QB_NEW_EN)
[grammar] ~516-~516: There might be a mistake here.
Context: ...rtunities - Validates capture conditions - Removes captured pawn from board **Pawn...
(QB_NEW_EN)
[grammar] ~519-~519: There might be a mistake here.
Context: ...red pawn from board Pawn Promotion: - Detects pawns reaching the opposite end ...
(QB_NEW_EN)
[grammar] ~603-~603: There might be a mistake here.
Context: ...atically detects game-ending conditions: - Checkmate Detection: Validates that th...
(QB_NEW_EN)
[grammar] ~605-~605: There might be a mistake here.
Context: ...es positions where no legal moves exist but king is not in check - **Draw Condition...
(QB_NEW_EN)
[grammar] ~632-~632: There might be a mistake here.
Context: ...Installation and Setup Prerequisites: - Node.js 18+ - TypeScript 4.9+ **Install...
(QB_NEW_EN)
[grammar] ~633-~633: There might be a mistake here.
Context: ... Setup Prerequisites: - Node.js 18+ - TypeScript 4.9+ Installation: ```ba...
(QB_NEW_EN)
[grammar] ~641-~641: There might be a mistake here.
Context: ...ogram/token ``` Wallet Integration: The SDK works with any wallet implementi...
(QB_NEW_EN)
[grammar] ~825-~825: There might be a mistake here.
Context: ..., error); } } ``` Error Categories: - InvalidMoveError: Chess rule violations - `GameNotFoundE...
(QB_NEW_EN)
[grammar] ~826-~826: There might be a mistake here.
Context: ...InvalidMoveError: Chess rule violations - GameNotFoundError: Invalid game references - Unauthorize...
(QB_NEW_EN)
[grammar] ~827-~827: There might be a mistake here.
Context: ...eNotFoundError: Invalid game references - UnauthorizedPlayerError: Permission violations - InsufficientF...
(QB_NEW_EN)
[grammar] ~828-~828: There might be a mistake here.
Context: ...rizedPlayerError: Permission violations - InsufficientFundsError: Wallet balance issues - NetworkError`...
(QB_NEW_EN)
[grammar] ~829-~829: There might be a mistake here.
Context: ...icientFundsError: Wallet balance issues - NetworkError`: RPC connectivity issues ### 6.7 Integ...
(QB_NEW_EN)
[grammar] ~834-~834: There might be a mistake here.
Context: ...Patterns Event-Driven Architecture: The SDK supports real-time game state mo...
(QB_NEW_EN)
[grammar] ~900-~900: There might be a mistake here.
Context: ...r); ``` Caching and State Management: - Local game state caching to reduce RPC c...
(QB_NEW_EN)
[grammar] ~901-~901: There might be a mistake here.
Context: ...l game state caching to reduce RPC calls - Optimistic UI updates with rollback on f...
(QB_NEW_EN)
[grammar] ~902-~902: There might be a mistake here.
Context: ...stic UI updates with rollback on failure - Efficient board state serialization - Mi...
(QB_NEW_EN)
[grammar] ~903-~903: There might be a mistake here.
Context: ...re - Efficient board state serialization - Minimal account data fetching The Check...
(QB_NEW_EN)
[grammar] ~914-~914: There might be a mistake here.
Context: ...ty with user adoption: Platform Fees: - Base platform fee: 2.5% of entry fees - ...
(QB_NEW_EN)
[grammar] ~915-~915: There might be a mistake here.
Context: ... - Base platform fee: 2.5% of entry fees - Volume-based discounts for high-activity...
(QB_NEW_EN)
[grammar] ~916-~916: There might be a mistake here.
Context: ... discounts for high-activity integrators - Dynamic fee adjustment based on network ...
(QB_NEW_EN)
[grammar] ~919-~919: There might be a mistake here.
Context: ...ongestion Integrator Revenue Sharing: - Integrators earn 1-3% commission on game...
(QB_NEW_EN)
[grammar] ~936-~936: There might be a mistake here.
Context: ...egrator_fee; ``` Winner Distribution: - Winner receives 100% of prize pool - Dra...
(QB_NEW_EN)
[grammar] ~956-~956: There might be a mistake here.
Context: ...iple security layers: Access Control: - Player-specific move validation - Time-b...
(QB_NEW_EN)
[grammar] ~957-~957: There might be a mistake here.
Context: ...rol:** - Player-specific move validation - Time-based game state transitions - Auth...
(QB_NEW_EN)
[grammar] ~958-~958: There might be a mistake here.
Context: ...tion - Time-based game state transitions - Authority-based administrative functions...
(QB_NEW_EN)
[grammar] ~961-~961: There might be a mistake here.
Context: ...trative functions Financial Security: - Escrow-based prize pool management - Ato...
(QB_NEW_EN)
[grammar] ~962-~962: There might be a mistake here.
Context: ...:** - Escrow-based prize pool management - Atomic win/loss settlements - Protection...
(QB_NEW_EN)
[grammar] ~963-~963: There might be a mistake here.
Context: ...management - Atomic win/loss settlements - Protection against reentrancy attacks *...
(QB_NEW_EN)
[grammar] ~966-~966: There might be a mistake here.
Context: ...st reentrancy attacks Game Integrity: - On-chain move validation prevents cheati...
(QB_NEW_EN)
[grammar] ~975-~975: There might be a mistake here.
Context: ...n security through: State Delegation: - Temporary delegation of account authorit...
(QB_NEW_EN)
[grammar] ~976-~976: There might be a mistake here.
Context: ...emporary delegation of account authority - Automatic reversion to main chain - Cryp...
(QB_NEW_EN)
[grammar] ~977-~977: There might be a mistake here.
Context: ...rity - Automatic reversion to main chain - Cryptographic proof of state transitions...
(QB_NEW_EN)
[grammar] ~980-~980: There might be a mistake here.
Context: ... state transitions Validator Network: - Decentralized validation of rollup state...
(QB_NEW_EN)
[grammar] ~981-~981: There might be a mistake here.
Context: ...ecentralized validation of rollup states - Economic incentives for honest behavior ...
(QB_NEW_EN)
[grammar] ~982-~982: There might be a mistake here.
Context: ... Economic incentives for honest behavior - Slashing conditions for malicious actors...
(QB_NEW_EN)
[grammar] ~991-~991: There might be a mistake here.
Context: ...ance improvements: Transaction Speed: - Move confirmation: <100ms (vs 400ms on m...
(QB_NEW_EN)
[grammar] ~992-~992: There might be a mistake here.
Context: ...nfirmation: <100ms (vs 400ms on mainnet) - Game state updates: Real-time - Batch se...
(QB_NEW_EN)
[grammar] ~993-~993: There might be a mistake here.
Context: ...mainnet) - Game state updates: Real-time - Batch settlement: Every 2-4 seconds **C...
(QB_NEW_EN)
[grammar] ~996-~996: There might be a mistake here.
Context: ...t: Every 2-4 seconds Cost Efficiency: - Per-move cost: ~$0.0001 (vs $0.01 on mai...
(QB_NEW_EN)
[grammar] ~997-~997: There might be a mistake here.
Context: ...ove cost: ~$0.0001 (vs $0.01 on mainnet) - Game creation: ~$0.001 - Settlement: Sta...
(QB_NEW_EN)
[grammar] ~998-~998: There might be a mistake here.
Context: ....01 on mainnet) - Game creation: ~$0.001 - Settlement: Standard Solana fees ### 9....
(QB_NEW_EN)
[grammar] ~1005-~1005: There might be a mistake here.
Context: ...tiple mechanisms: Horizontal Scaling: - Multiple rollup instances for different ...
(QB_NEW_EN)
[grammar] ~1006-~1006: There might be a mistake here.
Context: ...ollup instances for different game types - Geographic distribution of rollup valida...
(QB_NEW_EN)
[grammar] ~1007-~1007: There might be a mistake here.
Context: ...raphic distribution of rollup validators - Load balancing across rollup endpoints ...
(QB_NEW_EN)
[grammar] ~1010-~1010: There might be a mistake here.
Context: ...llup endpoints Vertical Optimization: - Efficient board state encoding (64 bytes...
(QB_NEW_EN)
[grammar] ~1011-~1011: There might be a mistake here.
Context: ...fficient board state encoding (64 bytes) - Compressed move representation - Optimiz...
(QB_NEW_EN)
[grammar] ~1012-~1012: There might be a mistake here.
Context: ... bytes) - Compressed move representation - Optimized instruction layouts ### 9.3 N...
(QB_NEW_EN)
[grammar] ~1027-~1027: There might be a mistake here.
Context: ... (Q3-Q4 2025) Advanced Game Features: - Tournament bracket system - Team-based c...
(QB_NEW_EN)
[grammar] ~1028-~1028: There might be a mistake here.
Context: ... Features:** - Tournament bracket system - Team-based competitions - Spectator mode...
(QB_NEW_EN)
[grammar] ~1029-~1029: There might be a mistake here.
Context: ...bracket system - Team-based competitions - Spectator mode with live commentary - Ad...
(QB_NEW_EN)
[grammar] ~1030-~1030: There might be a mistake here.
Context: ...ns - Spectator mode with live commentary - Advanced time controls (Fischer, Bronste...
(QB_NEW_EN)
[grammar] ~1033-~1033: There might be a mistake here.
Context: ...er, Bronstein) Platform Improvements: - Mobile SDK development - Enhanced analyt...
(QB_NEW_EN)
[grammar] ~1034-~1034: There might be a mistake here.
Context: ...Improvements:** - Mobile SDK development - Enhanced analytics dashboard - Automated...
(QB_NEW_EN)
[grammar] ~1035-~1035: There might be a mistake here.
Context: ...velopment - Enhanced analytics dashboard - Automated market making for entry fees -...
(QB_NEW_EN)
[grammar] ~1036-~1036: There might be a mistake here.
Context: ...- Automated market making for entry fees - Integration with chess rating systems #...
(QB_NEW_EN)
[grammar] ~1041-~1041: There might be a mistake here.
Context: ...nts (Q1-Q2 2026) Ecosystem Expansion: - Additional board games (Go, Checkers, Ba...
(QB_NEW_EN)
[grammar] ~1042-~1042: There might be a mistake here.
Context: ...l board games (Go, Checkers, Backgammon) - Cross-game tournaments and leagues - NFT...
(QB_NEW_EN)
[grammar] ~1043-~1043: There might be a mistake here.
Context: ...on) - Cross-game tournaments and leagues - NFT integration for unique pieces and bo...
(QB_NEW_EN)
[grammar] ~1044-~1044: There might be a mistake here.
Context: ...integration for unique pieces and boards - Streaming and content creator tools **T...
(QB_NEW_EN)
[grammar] ~1047-~1047: There might be a mistake here.
Context: ...creator tools Technical Advancements: - Zero-knowledge proof integration for pri...
(QB_NEW_EN)
[grammar] ~1048-~1048: There might be a mistake here.
Context: ...edge proof integration for private games - Advanced AI opponent integration - Cross...
(QB_NEW_EN)
[grammar] ~1049-~1049: There might be a mistake here.
Context: ...games - Advanced AI opponent integration - Cross-chain bridge development - Enhance...
(QB_NEW_EN)
[grammar] ~1050-~1050: There might be a mistake here.
Context: ...gration - Cross-chain bridge development - Enhanced MEV protection ### 10.3 Long-t...
(QB_NEW_EN)
[grammar] ~1055-~1055: There might be a mistake here.
Context: ...26+) Governance and Decentralization: - DAO governance implementation - Communit...
(QB_NEW_EN)
[grammar] ~1056-~1056: There might be a mistake here.
Context: ...ation:** - DAO governance implementation - Community-driven feature development - D...
(QB_NEW_EN)
[grammar] ~1057-~1057: There might be a mistake here.
Context: ...n - Community-driven feature development - Decentralized tournament organization - ...
(QB_NEW_EN)
[grammar] ~1058-~1058: There might be a mistake here.
Context: ... - Decentralized tournament organization - Player-owned platform evolution ## 11. ...
(QB_NEW_EN)
[grammar] ~1065-~1065: There might be a mistake here.
Context: ... that delivers: Technical Excellence: - Sub-100ms move confirmations - 99%+ cost...
(QB_NEW_EN)
[grammar] ~1066-~1066: There might be a mistake here.
Context: ...llence:** - Sub-100ms move confirmations - 99%+ cost reduction compared to mainnet ...
(QB_NEW_EN)
[grammar] ~1067-~1067: There might be a mistake here.
Context: ... reduction compared to mainnet execution - Seamless integration with existing Solan...
(QB_NEW_EN)
[grammar] ~1068-~1068: There might be a mistake here.
Context: ...tion with existing Solana infrastructure - Robust security through cryptographic st...
(QB_NEW_EN)
[grammar] ~1071-~1071: There might be a mistake here.
Context: ...state delegation Economic Innovation: - Sustainable multi-tier fee structure - R...
(QB_NEW_EN)
[grammar] ~1072-~1072: There might be a mistake here.
Context: ...* - Sustainable multi-tier fee structure - Revenue sharing with platform integrator...
(QB_NEW_EN)
[grammar] ~1073-~1073: There might be a mistake here.
Context: ...evenue sharing with platform integrators - Transparent, escrow-based prize distribu...
(QB_NEW_EN)
[grammar] ~1074-~1074: There might be a mistake here.
Context: ...sparent, escrow-based prize distribution - Support for diverse token economies **D...
(QB_NEW_EN)
[grammar] ~1077-~1077: There might be a mistake here.
Context: ...token economies Developer Experience: - Comprehensive TypeScript SDK - Clean, in...
(QB_NEW_EN)
[grammar] ~1078-~1078: There might be a mistake here.
Context: ...rience:** - Comprehensive TypeScript SDK - Clean, intuitive API design - Extensive ...
(QB_NEW_EN)
[grammar] ~1079-~1079: There might be a mistake here.
Context: ...Script SDK - Clean, intuitive API design - Extensive documentation and examples - M...
(QB_NEW_EN)
[grammar] ~1080-~1080: There might be a mistake here.
Context: ...n - Extensive documentation and examples - Multiple integration patterns **User Be...
(QB_NEW_EN)
[grammar] ~1083-~1083: There might be a mistake here.
Context: ...e integration patterns User Benefits: - Instant gameplay feedback - Minimal tran...
(QB_NEW_EN)
[grammar] ~1084-~1084: There might be a mistake here.
Context: ... Benefits:** - Instant gameplay feedback - Minimal transaction costs - Provably fai...
(QB_NEW_EN)
[grammar] ~1085-~1085: There might be a mistake here.
Context: ...lay feedback - Minimal transaction costs - Provably fair game mechanics - Seamless ...
(QB_NEW_EN)
[grammar] ~1086-~1086: There might be a mistake here.
Context: ...ion costs - Provably fair game mechanics - Seamless wallet integration The platfor...
(QB_NEW_EN)
[grammar] ~1093-~1093: There might be a mistake here.
Context: ...has arrived. This chess platform stands as testament to what becomes possible when...
(QB_NEW_EN)
[style] ~1093-~1093: This sentence construction might be considered wordy, consider shortening it.
Context: ...ology meets timeless gameplay, creating experiences that are simultaneously familiar and revolutionary. --- *For technical...
(A_VERY_ORDERED_SENTENCE)
apps/docs/content/docs/whitepaper/whitepaper.mdx
[grammar] ~14-~14: There might be a mistake here.
Context: ...le maintaining full Solana compatibility - Complete On-Chain Logic: All game rule...
(QB_NEW_EN)
[grammar] ~15-~15: There might be a mistake here.
Context: ...erations executed transparently on-chain - Multi-Tenant Architecture: Scalable pl...
(QB_NEW_EN)
[grammar] ~16-~16: There might be a mistake here.
Context: ...grators with customizable fee structures - Seamless Integration: TypeScript SDK e...
(QB_NEW_EN)
[grammar] ~24-~24: There might be a mistake here.
Context: ...ate fragmentation or bridge dependencies - Horizontal scaling through on-demand Eph...
(QB_NEW_EN)
[grammar] ~25-~25: There might be a mistake here.
Context: ...tal scaling through on-demand Ephemeral Rollups - Native Solana ecosystem integration - Tr...
(QB_NEW_EN)
[grammar] ~26-~26: There might be a mistake here.
Context: ...ps - Native Solana ecosystem integration - Transparent and immutable game mechanics...
(QB_NEW_EN)
[grammar] ~57-~57: There might be a mistake here.
Context: ...1 System Architecture Overview <Mermaid chart=" graph TD graph TB subgra...
(QB_NEW_EN)
[grammar] ~58-~58: There might be a mistake here.
Context: ...rchitecture Overview <Mermaid chart=" graph TD graph TB subgraph [User...
(QB_NEW_EN)
[grammar] ~59-~59: There might be a mistake here.
Context: ...re Overview <Mermaid chart=" graph TD graph TB subgraph [User Layer] ...
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[grammar] ~181-~181: There might be a mistake here.
Context: ...Chess players and third-party developers - Integration Layer: SDK, wallets, and f...
(QB_NEW_EN)
[grammar] ~182-~182: There might be a mistake here.
Context: ...*: SDK, wallets, and frontend interfaces - Platform Layer: Multiple integrator pl...
(QB_NEW_EN)
[grammar] ~183-~183: There might be a mistake here.
Context: ...tor platforms with custom configurations - Ephemeral Rollup Layer: High-speed exe...
(QB_NEW_EN)
[grammar] ~184-~184: There might be a mistake here.
Context: ... execution environments for active games - Solana L1 Layer: Permanent state stora...
(QB_NEW_EN)
[grammar] ~254-~254: There might be a mistake here.
Context: ... configurable parameters - join_game: Enable second player to join open games - `can...
(QB_NEW_EN)
[grammar] ~260-~260: There might be a mistake here.
Context: ...ndling move validation and state updates - Comprehensive chess rule validation incl...
(QB_NEW_EN)
[grammar] ~261-~261: There might be a mistake here.
Context: ...ule validation including check detection - Special move support (castling, en passa...
(QB_NEW_EN)
[grammar] ~266-~266: There might be a mistake here.
Context: ...) Draw Mechanics: - offer_draw: Propose draw to opponent - accept_draw: Accep...
(QB_NEW_EN)
[grammar] ~266-~266: There might be a mistake here.
Context: ...hanics**: - offer_draw: Propose draw to opponent - accept_draw: Accept pendin...
(QB_NEW_EN)
[grammar] ~329-~329: There might be a mistake here.
Context: ...against double-spending and manipulation - Support for partial refunds in case of d...
(QB_NEW_EN)
[grammar] ~336-~336: There might be a mistake here.
Context: ...Base fees collected by the chess program - Integrator Fees: Additional fees colle...
(QB_NEW_EN)
[grammar] ~337-~337: There might be a mistake here.
Context: ... fees collected by third-party platforms - Transparent Calculation: All fees calc...
(QB_NEW_EN)
[grammar] ~424-~424: There might be a mistake here.
Context: ...er**: 400ms average block time on Solana - Ephemeral Rollup: 10-50ms execution ti...
(QB_NEW_EN)
[grammar] ~425-~425: There might be a mistake here.
Context: ...: 10-50ms execution time for chess moves - User Experience: Near-instantaneous mo...
(QB_NEW_EN)
[grammar] ~557-~557: There might be a mistake here.
Context: ...**: - Validates king and rook positions - Checks for intervening pieces - Ensures ...
(QB_NEW_EN)
[grammar] ~558-~558: There might be a mistake here.
Context: ...ositions - Checks for intervening pieces - Ensures neither piece has moved previous...
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Context: ...sures neither piece has moved previously - Verifies king is not in check **En Pass...
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Context: ...ouble-moves for en passant opportunities - Validates capture conditions - Removes c...
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Context: ...rtunities - Validates capture conditions - Removes captured pawn from board **Pawn...
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Context: ... Detects pawns reaching the opposite end - Validates promotion piece selection - Up...
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Context: ...nd - Validates promotion piece selection - Updates board state with promoted piece ...
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Context: ...es positions where no legal moves exist but king is not in check - **Draw Condition...
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Context: ...Setup Prerequisites: - Node.js 18+ - TypeScript 4.9+ Installation: ```b...
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Context: ...ogram/token ``` Wallet Integration: The SDK works with any wallet implementi...
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Context: ...InvalidMoveError: Chess rule violations - GameNotFoundError: Invalid game references - Unauthorize...
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Context: ...eNotFoundError: Invalid game references - UnauthorizedPlayerError: Permission violations - InsufficientF...
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Context: ...rizedPlayerError: Permission violations - InsufficientFundsError: Wallet balance issues - NetworkError`...
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Context: ...icientFundsError: Wallet balance issues - NetworkError`: RPC connectivity issues ### 6.7 Integ...
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Context: ...Patterns Event-Driven Architecture: The SDK supports real-time game state mo...
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Context: ...l game state caching to reduce RPC calls - Optimistic UI updates with rollback on f...
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Context: ...stic UI updates with rollback on failure - Efficient board state serialization - Mi...
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Context: ...re - Efficient board state serialization - Minimal account data fetching The Check...
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Context: ... - Base platform fee: 2.5% of entry fees - Volume-based discounts for high-activity...
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Context: ... discounts for high-activity integrators - Dynamic fee adjustment based on network ...
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Context: ...Distribution:** - Winner receives 100% of prize pool - Draw results in 50/50 spli...
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Context: ...ol:** - Player-specific move validation - Time-based game state transitions - Auth...
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Context: ...tion - Time-based game state transitions - Authority-based administrative functions...
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Context: ...** - Escrow-based prize pool management - Atomic win/loss settlements - Protection...
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Context: ...management - Atomic win/loss settlements - Protection against reentrancy attacks *...
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Context: ...emporary delegation of account authority - Automatic reversion to main chain - Cryp...
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Context: ...rity - Automatic reversion to main chain - Cryptographic proof of state transitions...
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Context: ...ecentralized validation of rollup states - Economic incentives for honest behavior ...
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Context: ... Economic incentives for honest behavior - Slashing conditions for malicious actors...
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Context: ...mation: {'<'}100ms (vs 400ms on mainnet) - Game state updates: Real-time - Batch se...
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Context: ...mainnet) - Game state updates: Real-time - Batch settlement: Every 2-4 seconds **C...
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Context: ...ove cost: ~$0.0001 (vs $0.01 on mainnet) - Game creation: ~$0.001 - Settlement: Sta...
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Context: ....01 on mainnet) - Game creation: ~$0.001 - Settlement: Standard Solana fees ### 9....
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Context: ...ollup instances for different game types - Geographic distribution of rollup valida...
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Context: ...raphic distribution of rollup validators - Load balancing across rollup endpoints ...
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Context: ...fficient board state encoding (64 bytes) - Compressed move representation - Optimiz...
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Context: ... bytes) - Compressed move representation - Optimized instruction layouts ### 9.3 N...
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Context: ...Features:** - Tournament bracket system - Team-based competitions - Spectator mode...
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Context: ...bracket system - Team-based competitions - Spectator mode with live commentary - Ad...
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Context: ...ns - Spectator mode with live commentary - Advanced time controls (Fischer, Bronste...
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Context: ...mprovements:** - Mobile SDK development - Enhanced analytics dashboard - Automated...
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Context: ...velopment - Enhanced analytics dashboard - Automated market making for entry fees -...
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Context: ...- Automated market making for entry fees - Integration with chess rating systems #...
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Context: ...l board games (Go, Checkers, Backgammon) - Cross-game tournaments and leagues - NFT...
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Context: ...on) - Cross-game tournaments and leagues - NFT integration for unique pieces and bo...
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Context: ...integration for unique pieces and boards - Streaming and content creator tools **T...
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Context: ...edge proof integration for private games - Advanced AI opponent integration - Cross...
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Context: ...games - Advanced AI opponent integration - Cross-chain bridge development - Enhance...
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Context: ...gration - Cross-chain bridge development - Enhanced MEV protection ### 10.3 Long-t...
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Context: ...tion:** - DAO governance implementation - Community-driven feature development - D...
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Context: ...n - Community-driven feature development - Decentralized tournament organization - ...
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Context: ... - Decentralized tournament organization - Player-owned platform evolution ## 11. ...
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Context: ...lence:** - Sub-100ms move confirmations - 99%+ cost reduction compared to mainnet ...
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Context: ... reduction compared to mainnet execution - Seamless integration with existing Solan...
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Context: ...tion with existing Solana infrastructure - Robust security through cryptographic st...
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Context: ... - Sustainable multi-tier fee structure - Revenue sharing with platform integrator...
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Context: ...evenue sharing with platform integrators - Transparent, escrow-based prize distribu...
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Context: ...sparent, escrow-based prize distribution - Support for diverse token economies **D...
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Context: ...ience:** - Comprehensive TypeScript SDK - Clean, intuitive API design - Extensive ...
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Context: ...Script SDK - Clean, intuitive API design - Extensive documentation and examples - M...
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Context: ...n - Extensive documentation and examples - Multiple integration patterns **User Be...
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Context: ...Benefits:** - Instant gameplay feedback - Minimal transaction costs - Provably fai...
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Context: ...lay feedback - Minimal transaction costs - Provably fair game mechanics - Seamless ...
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Context: ...ion costs - Provably fair game mechanics - Seamless wallet integration The platfor...
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Context: ...has arrived. This chess platform stands as testament to what becomes possible when...
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Context: ...ology meets timeless gameplay, creating experiences that are simultaneously familiar and revolutionary. --- _For technical...
(A_VERY_ORDERED_SENTENCE)
🪛 markdownlint-cli2 (0.17.2)
WHITEPAPER.md
50-50: Fenced code blocks should have a language specified
(MD040, fenced-code-language)
🔇 Additional comments (4)
apps/docs/content/docs/whitepaper/whitepaper.mdx (3)
693-695: Package name likely incorrect (@solana-program/token).Common package is
@solana/spl-token. Verify and update to prevent copy/paste errors.-npm install @checkmate/sdk @solana/kit @solana-program/token +npm install @checkmate/sdk @solana/kit @solana/spl-token
890-898: Batch example passes objects, notInstructions.-const instructions = [ - await chessMateSDK.makeMoveIx(moveParams1), - await chessMateSDK.makeMoveIx(moveParams2) -]; -const signature = await sendTransaction(erRpc, instructions, signer); +const ix1 = (await chessMateSDK.makeMoveIx(moveParams1)).instruction; +const ix2 = (await chessMateSDK.makeMoveIx(moveParams2)).instruction; +const signature = await sendAndConfirm(erRpc, [ix1, ix2], signer);Likely an incorrect or invalid review comment.
57-177: Enable Mermaid plugin or switch to fenced code block
The<Mermaid>component will render as plain text unless you’ve enabled a Mermaid MDX plugin (e.g. mdx-mermaid or remark-mermaidjs) in your docs config—double-check yournext.config.js/gatsby-config.jsunder apps/docs. If you’d rather not enable the plugin, convert this to a fenced ````mermaid``` block and remove the redundantgraph TDbefore `graph TB`. For example:-<Mermaid chart={` -graph TD - graph TB +```mermaid +graph TB subgraph [User Layer] U1[Chess Player 1] U2[Chess Player 2] @@ class RPC,ERRPC externalLayer -`}/> +```WHITEPAPER.md (1)
637-639: Verify SPL Token package name.-npm install @checkmate/sdk @solana/kit @solana-program/token +npm install @checkmate/sdk @solana/kit @solana/spl-token
| pub castling_rights: CastlingRights, | ||
| pub en_passant_square: Option<u8>, | ||
| pub king_white_square: u8, | ||
| pub king_black_square: u8, | ||
| pub last_move: Option<LastMove>, | ||
| ``` |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Model/time tracking mismatch (last_move vs last_move_at).
Either add last_move_at to state or read timestamp from last_move. Pick one and keep consistent throughout.
Option A:
pub last_move: Option<LastMove>,
+pub last_move_at: Option<i64>, // unix tsOr update the time snippet to use last_move.timestamp.
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| pub castling_rights: CastlingRights, | |
| pub en_passant_square: Option<u8>, | |
| pub king_white_square: u8, | |
| pub king_black_square: u8, | |
| pub last_move: Option<LastMove>, | |
| ``` | |
| pub castling_rights: CastlingRights, | |
| pub en_passant_square: Option<u8>, | |
| pub king_white_square: u8, | |
| pub king_black_square: u8, | |
| pub last_move: Option<LastMove>, | |
| pub last_move_at: Option<i64>, // unix ts |
🤖 Prompt for AI Agents
In apps/docs/content/docs/whitepaper/whitepaper.mdx around lines 216 to 221
there is a mismatch between the state fields and the time usage: the struct
defines last_move: Option<LastMove> but documentation/snippet expects
last_move_at; fix by choosing one approach and making it consistent across the
doc — either add a pub last_move_at: Option<DateTime/ timestamp type> to the
state and populate it when moves occur, or update the time-related
example/snippet to read the timestamp from last_move (e.g., last_move.timestamp)
wherever last_move_at is referenced; ensure all examples and schema descriptions
are updated to reflect the chosen field.
| ```rust | ||
| // Piece encoding: 0xTC where T = type, C = color | ||
| // Color: 1 = White, 2 = Black | ||
| // Type: 1 = Pawn, 2 = Knight, 3 = Bishop, 4 = Rook, 5 = Queen, 6 = King | ||
|
|
||
| // Examples: | ||
| // 0x11 = White Pawn | ||
| // 0x26 = Black King | ||
| // 0x00 = Empty Square |
There was a problem hiding this comment.
Piece encoding spec contradicts examples (0xTC vs examples implying 0xCT).
Examples and initialization imply color is the high nibble. Correct the comment to 0xCT and clarify helper bit ops.
-// Piece encoding: 0xTC where T = type, C = color
+// Piece encoding: 0xCT where C = color (high nibble), T = type (low nibble)
+// Helpers: color(piece) = piece >> 4; typ(piece) = piece & 0x0F📝 Committable suggestion
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Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| ```rust | |
| // Piece encoding: 0xTC where T = type, C = color | |
| // Color: 1 = White, 2 = Black | |
| // Type: 1 = Pawn, 2 = Knight, 3 = Bishop, 4 = Rook, 5 = Queen, 6 = King | |
| // Examples: | |
| // 0x11 = White Pawn | |
| // 0x26 = Black King | |
| // 0x00 = Empty Square |
🤖 Prompt for AI Agents
In apps/docs/content/docs/whitepaper/whitepaper.mdx around lines 448 to 456, the
piece-encoding comment incorrectly states 0xTC while examples treat the high
nibble as color; update the spec to 0xCT (C = color in high nibble, T = type in
low nibble), flip the descriptive mapping accordingly (Color: 1 = White, 2 =
Black; Type: 1 = Pawn ... 6 = King), update the examples to match (e.g., 0x11 =
White Pawn stays if interpreted as 0xCT or adjust examples so 0x12/0x21
consistent), and add a brief note on helper bit ops showing how to extract color
and type (color = (val >> 4) & 0xF, type = val & 0xF) so readers clearly see
high-nibble color, low-nibble type.
| // 3. Piece validation | ||
| let piece_at_from = game_account.get_piece_at(from_square); | ||
| require!(piece_at_from != 0, ChessError::NoPieceAtSquare); | ||
|
|
||
| // 4. Chess rule validation | ||
| require!( | ||
| utils::is_valid_chess_move( | ||
| &game_account.board_state, | ||
| from_square, | ||
| to_square, | ||
| piece_type, | ||
| &game_account.castling_rights, | ||
| game_account.en_passant_square, | ||
| promotion_piece.clone() | ||
| )?, | ||
| ChessError::InvalidMove | ||
| ); | ||
|
|
||
| // 5. Check validation | ||
| require!( | ||
| !utils::move_leaves_king_in_check( | ||
| &game_account.board_state, | ||
| from_square, | ||
| to_square, | ||
| &player_color, | ||
| &game_account.castling_rights | ||
| )?, | ||
| ChessError::MoveExposesKing | ||
| ); |
There was a problem hiding this comment.
Undefined piece_type and player_color in handler snippet.
Derive both from piece_at_from (or current turn) before use to avoid non-compilable example code.
// 3. Piece validation
- let piece_at_from = game_account.get_piece_at(from_square);
+ let piece_at_from = game_account.get_piece_at(from_square);
+ let piece_type = PieceType::from_byte(piece_at_from);
+ let player_color = PlayerColor::from_byte(piece_at_from);
require!(piece_at_from != 0, ChessError::NoPieceAtSquare);📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| // 3. Piece validation | |
| let piece_at_from = game_account.get_piece_at(from_square); | |
| require!(piece_at_from != 0, ChessError::NoPieceAtSquare); | |
| // 4. Chess rule validation | |
| require!( | |
| utils::is_valid_chess_move( | |
| &game_account.board_state, | |
| from_square, | |
| to_square, | |
| piece_type, | |
| &game_account.castling_rights, | |
| game_account.en_passant_square, | |
| promotion_piece.clone() | |
| )?, | |
| ChessError::InvalidMove | |
| ); | |
| // 5. Check validation | |
| require!( | |
| !utils::move_leaves_king_in_check( | |
| &game_account.board_state, | |
| from_square, | |
| to_square, | |
| &player_color, | |
| &game_account.castling_rights | |
| )?, | |
| ChessError::MoveExposesKing | |
| ); | |
| // 3. Piece validation | |
| let piece_at_from = game_account.get_piece_at(from_square); | |
| let piece_type = PieceType::from_byte(piece_at_from); | |
| let player_color = PlayerColor::from_byte(piece_at_from); | |
| require!(piece_at_from != 0, ChessError::NoPieceAtSquare); |
🤖 Prompt for AI Agents
In apps/docs/content/docs/whitepaper/whitepaper.mdx around lines 518 to 546, the
snippet uses undefined identifiers piece_type and player_color; derive them from
piece_at_from (and/or the game's current turn) before use: extract the piece
type from piece_at_from (e.g., by masking/decoding the stored piece value) into
piece_type and derive player_color from either piece_at_from (owner bit) or
game_account.current_turn, then replace the undefined variables with these
derived values so the example compiles and correctly validates moves.
| ```typescript | ||
| // Initialize integrator (one-time setup) | ||
| const params = { |
There was a problem hiding this comment.
🛠️ Refactor suggestion
sendTransaction not imported; ensure correct helper and pass Instructions.
-const { instruction } = await chessMateSDK.makeMoveIx(moveParams);
-const signature = await sendTransaction(erRpc, [instruction], signer);
+import { sendAndConfirm } from "@solana/kit";
+const { instruction } = await chessMateSDK.makeMoveIx(moveParams);
+const signature = await sendAndConfirm(erRpc, [instruction], signer);📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| ```typescript | |
| // Initialize integrator (one-time setup) | |
| const params = { |
🤖 Prompt for AI Agents
In apps/docs/content/docs/whitepaper/whitepaper.mdx around lines 714 to 716, the
code references sendTransaction but it is not imported and the call must receive
the Instructions parameter; add the proper import for sendTransaction from the
helper module used in this project at the top of the file (e.g., import {
sendTransaction } from '.../helpers' or the correct path), and update the
initializer call to pass the Instructions object/variable into sendTransaction
so the transaction helper receives the required instructions.
| tokenMint: address("EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"), // USDC | ||
| entryFee: BigInt(1_000_000), // 1 USDC | ||
| timeControl: { |
There was a problem hiding this comment.
💡 Verification agent
❓ Verification inconclusive
Devnet RPC with mainnet USDC mint; parametrize by cluster.
- tokenMint: address("EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"), // USDC
+ tokenMint: address(process.env.USDC_MINT!), // set per cluster (devnet/mainnet)Add a small table mapping cluster→mint and sample .env.
Parametrize USDC mint by cluster in code samples
apps/docs/content/docs/whitepaper/whitepaper.mdx:735-737 – replace the hard-coded mainnet USDC mint ("EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v") with address(process.env.USDC_MINT!), and add a table mapping each cluster to its USDC mint address plus a sample .env.
🤖 Prompt for AI Agents
In apps/docs/content/docs/whitepaper/whitepaper.mdx around lines 735 to 737, the
USDC mint is hard-coded to the mainnet address; replace the literal string with
address(process.env.USDC_MINT!) so the example is cluster-agnostic, and update
nearby documentation to include a small table mapping cluster names (mainnet,
devnet, testnet, local) to their respective USDC mint addresses plus a sample
.env snippet showing USDC_MINT=<mint-address> for each cluster; ensure the text
calls out that the env var must be set before running the sample.
| ``` | ||
| graph TB | ||
| subgraph "User Layer" | ||
| U1[Chess Player 1] | ||
| U2[Chess Player 2] | ||
| DEV[Third-party Developers] | ||
| end | ||
|
|
||
| subgraph "Integration Layer" | ||
| SDK[CheckMate TypeScript SDK] | ||
| WALLET[Solana Wallets] | ||
| UI[Chess UI/Frontend] | ||
| end | ||
|
|
||
| subgraph "Platform Layer" | ||
| INT1[Integrator Platform 1] | ||
| INT2[Integrator Platform 2] | ||
| INTN[Integrator Platform N] | ||
| end | ||
|
|
||
| subgraph "Ephemeral Rollup Layer" | ||
| ER1[Ephemeral Rollup 1] | ||
| ER2[Ephemeral Rollup 2] | ||
| ERN[Ephemeral Rollup N] | ||
| PROV[MagicBlock Provisioner] | ||
| end | ||
|
|
||
| subgraph "Solana L1 Blockchain" | ||
| subgraph "Chess Program (Anchor)" | ||
| GAME[Game Accounts] | ||
| PLAT[Platform Config] | ||
| INTEG[Integrator Configs] | ||
| ESC[Escrow Accounts] | ||
| end | ||
|
|
||
| subgraph "Token Program" | ||
| VAULT[Token Vaults] | ||
| MINT[Token Mints] | ||
| end | ||
|
|
||
| subgraph "System Programs" | ||
| SYS[System Program] | ||
| RENT[Rent Program] | ||
| end | ||
| end | ||
|
|
||
| subgraph "External Services" | ||
| RPC[Solana RPC] | ||
| ERRPC[Ephemeral Rollup RPC] | ||
| end | ||
|
|
||
| %% User interactions | ||
| U1 --> UI | ||
| U2 --> UI | ||
| DEV --> SDK | ||
|
|
||
| %% Integration layer connections | ||
| UI --> SDK | ||
| SDK --> WALLET | ||
| SDK --> RPC | ||
| SDK --> ERRPC | ||
|
|
||
| %% Platform integrations | ||
| SDK --> INT1 | ||
| SDK --> INT2 | ||
| SDK --> INTN | ||
|
|
||
| %% Ephemeral Rollup delegation | ||
| PROV --> ER1 | ||
| PROV --> ER2 | ||
| PROV --> ERN | ||
|
|
||
| %% State delegation flow | ||
| GAME -.->|"Delegate State"| ER1 | ||
| GAME -.->|"Delegate State"| ER2 | ||
| GAME -.->|"Delegate State"| ERN | ||
|
|
||
| %% Commitment flow | ||
| ER1 -.->|"Commit State"| GAME | ||
| ER2 -.->|"Commit State"| GAME | ||
| ERN -.->|"Commit State"| GAME | ||
|
|
||
| %% RPC connections | ||
| RPC --> GAME | ||
| RPC --> PLAT | ||
| RPC --> INTEG | ||
| RPC --> ESC | ||
| RPC --> VAULT | ||
|
|
||
| ERRPC --> ER1 | ||
| ERRPC --> ER2 | ||
| ERRPC --> ERN | ||
|
|
||
| %% Financial flows | ||
| ESC --> VAULT | ||
| VAULT --> MINT | ||
|
|
||
| %% Program interactions | ||
| GAME --> ESC | ||
| GAME --> SYS | ||
| GAME --> RENT | ||
| PLAT --> INTEG | ||
|
|
||
| %% Styling | ||
| classDef userLayer fill:#e1f5fe | ||
| classDef integrationLayer fill:#f3e5f5 | ||
| classDef platformLayer fill:#e8f5e8 | ||
| classDef rollupLayer fill:#fff3e0 | ||
| classDef solanaLayer fill:#fce4ec | ||
| classDef externalLayer fill:#f5f5f5 | ||
|
|
||
| class U1,U2,DEV userLayer | ||
| class SDK,WALLET,UI integrationLayer | ||
| class INT1,INT2,INTN platformLayer | ||
| class ER1,ER2,ERN,PROV rollupLayer | ||
| class GAME,PLAT,INTEG,ESC,VAULT,MINT,SYS,RENT solanaLayer | ||
| class RPC,ERRPC externalLayer | ||
| ``` |
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🛠️ Refactor suggestion
Mark the diagram code fence as mermaid.
Without a language, many renderers won’t parse it as a diagram.
-```
+```mermaid
graph TB
@@
-```
+```🧰 Tools
🪛 markdownlint-cli2 (0.17.2)
50-50: Fenced code blocks should have a language specified
(MD040, fenced-code-language)
🤖 Prompt for AI Agents
In WHITEPAPER.md around lines 50 to 167, the fenced diagram block is missing a
language tag so renderers won't treat it as a Mermaid diagram; replace the
opening code fence from ``` to ```mermaid (leave the closing ``` unchanged) so
the block is explicitly marked as a mermaid diagram and will be parsed/rendered
correctly.
Summary by CodeRabbit
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