These are a collection of solutions to the puzzles on CodinGame.com

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Introduction

CodingGame has a vast selection of challenging problems, in a variety of different contexts, requiring knowledge in all aspects of programming to solve them.

There are multiple different modes available: Clash of Code, Puzzles, Code Golf, Bot Programming and Optimization. Each mode offers something unqiue and challenging.

Puzzles Completed:

Total Puzzle Solutions:

Code Golf Completed:

💻 Languages Used

My Contributions

The following is a collection of my created puzzles and Clash of Codes that have been accepted, awaiting approval or under construction.

Clash of Codes

Name	Tags	Modes	Solution	Status
GeoGuessr Best Guess	String Manipulation Conditions	Fastest Shortest	Python Ruby	✔️
Formula 1 Championship	Hashmap String Manipulation Sorting	Fastest Shortest	Python Ruby	✔️
Beam Rotation	Mathematics Moments	Fastest Shortest	Python	✔️
Santa's Gift Sorting	Sorting	Fastest Shortest	Python	✔️
Football Scores	Hashmap String Sorting	Fastest Shortest	Python	✔️

Puzzles

Name	Difficulty	Total Attempts	Success Rate	Rating	Tags	Solution	Status
Darts Checkout Combinations	Easy	231	72%	4.4⭐	DFS BFS Brute-Force	Python	✔️
Road to Mount Boom	Medium	75	79%	4.7⭐	DFS BFS 2D Array	Python	✔️
Snakes and Ladders	Medium	66	78%	4.8⭐	BFS Pathfinding DFS	Python	✔️
Tired Pac-Man	Medium	58	40%	4.9⭐	DFS BFS Pathfinding Memoization Recursion	Python	✔️
The Sovereign's Game	Medium	57	72%	4.0⭐	Priority Queue Greedy Algorithm	Python	✔️
Pandora's Bridges	Hard	34	79%	5.0⭐	Graphs Trigonometry 3D Distances	Python	✔️
Snap!	Easy			?⭐	Priority Queue Stack Card Games Simulation	Python	0/3 ⏳
Snowflakes	Medium			?⭐	?	Python	0/3 ⏳
Target Practice	Easy/Medium				Mathematics Geometry	Python	🚧

Solo Games

Name	Difficulty	Total Attempts	Success Rate	Rating	Tags	Code Links	Status
Connect the Colours - Part 1	Medium	30	43%	5.0⭐	BFS DFS Pathfinding Backtracking	Source Code Solution	✔️
Connect the Colours - Part 2	Hard	15	60%	5.0⭐	BFS DFS Pathfinding Backtracking	Source Code Solution	✔️
Elevators and Stairs	Medium					Source Code	🚧

Bot Programming

Name	Total Players	Rating	Tags	Code Links	Status
Grid Wars				Source Code	🚧

Clash of Code

Clash of Code is a mode aimed at improving coding efficiency through racing other users to create a robust solution to a problem as quick as possible. There are three different modes available in Clash of Code: Fastest, Shortest and Reverse.

Fastest: This mode is to create a solution to a problem passing all validators as quick as possible.

Shortest: This mode is for creating a solution in the shortest number of characters possible.

Reverse: This mode provides an input and output only. The user must decipher the problem only from this information and create a solution as quick as they can.

Current Standings

Position	Percentile	Score	Participations
111 / 800,136	Top 0.014%	27.26	654

Best Standings

Position	Percentile	Score	Participations
36 / 739,096	Top 0.0049%	28.28	530

Puzzles

Puzzles are a selection of problems split into different difficulty levels. The goal is to provide a solution that will pass hidden validators, to ensure a complete solution. The hidden validators will include general solutions as well as edge cases. Each problem is accompanied by tags releated to the problem, for example: BFS, Trie, Backtracking, Pathfinding, Cryptography, ... etc.

Easy

No.	Puzzle Name	State	Language	Tags
001	Moves in Maze	✔️ Completed	Python Ruby PHP TypeScript	BFS Flood Fill Maze
002	Six Degrees of Kevin Bacon	✔️ Completed	Python Ruby	Graphs BFS Lists
003	Encryption/Decryption of Enigma Machine	✔️ Completed	Python Ruby	Cryptography Encoding String Manipulation Strings
004	The Weight of Words	✔️ Completed	Python Ruby	Cryptography
005	ABCDEFGHIJKLMNOPQRSTUVWXYZ	✔️ Completed	Python Ruby	DFS BFS Arrays
006	Mars Lander - Episode 1	✔️ Completed	Python Ruby Java JavaScript C++ C C# Bash D Dart F# Go Groovy Kotlin Lua ObjectiveC PHP Pascal Perl Rust Scala Swift TypeScript VBNET Clojure Haskell OCaml	Conditions
007	Logic Gates	✔️ Completed	Python Java	Logic Hashmap Bitwise Operations Arrays
008	Horse-Racing Duels	✔️ Completed	Python Ruby Java JavaScript C++ C C# Bash D Dart Go Groovy Kotlin Lua ObjectiveC PHP Perl Rust TypeScript Haskell	Loops Array Sorting
009	The Descent	✔️ Completed	Python Ruby Java JavaScript C++ C C# Bash D Dart F# Go Groovy Kotlin Lua ObjectiveC PHP Pascal Perl Rust Scala Swift TypeScript VBNET OCaml	Loops
010	Ghost Legs	✔️ Completed	Python Ruby	Loops Conditions
011	Retro Typewriter Art	✔️ Completed	Python Ruby	Parsing Ascii Art
012	ASCII Art	✔️ Completed	Python Ruby Rust TypeScript	Ascii Art Arrays Loops Strings
013	Unary	✔️ Completed	Python Ruby JavaScript	Encoding Loops Conditions Strings
014	Temperatures	✔️ Completed	Python Ruby Java JavaScript C++ C C# Bash D Dart Go Groovy Kotlin Lua PHP TypeScript	Arrays Loops Conditions
015	Create the Longest Sequence of 1s	✔️ Completed	Python Ruby Java JavaScript D Dart Kotlin PHP TypeScript	String Manipulation
016	Defibrillators	✔️ Completed	Python Ruby	Trigonometry Distance Loops
017	Power of Thor - Episode 1	✔️ Completed	Python Ruby Java JavaScript C++ C C# Bash D Dart Kotlin PHP Rust TypeScript	Conditions
018	MIME Type	✔️ Completed	Python	Hash Tables Loops Conditions Strings
019	NGR - Basic Radar	✔️ Completed	Python Java	Hashmap Sorting Mathematics
020	Brackets, Extreme Edition	✔️ Completed	Python Ruby Java JavaScript C++ C# Kotlin PHP TypeScript	Stack Hashmap
021	The Dart 101	✔️ Completed	Python	Queue Simulation Conditions
022	Longest Coast	✔️ Completed	Python	DFS BFS Graphs
023	Cheap Choices	✔️ Completed	Python Java	Hashmap Loops
024	Periodic Table Spelling	✔️ Completed	Python	DFS BFS Loops Conditions
025	Anagram to Break Code!	✔️ Completed	Python	Anagram Array String Manipulation
026	Suduko Validator	✔️ Completed	Python	2D Array Conditions
027	Island Escape	✔️ Completed	Python	Flood Fill DFS 2D Array
028	Word Search for Programmers	✔️ Completed	Python	2D Array String Manipulation Sets Conditions
029	Should Bakers be Frugal?	✔️ Completed	Python Ruby Java JavaScript C++ C C# D Dart Kotlin PHP TypeScript	Resource Management Simulation Mathematics Geometry
030	Rock Paper Scissors Lizard Spock	✔️ Completed	Python Ruby Java	Hashmap Loops Conditions
031	What 🌼 is 🌷 Your 🌸 Garden 💐 Worth?	✔️ Completed	Python	Hashmap Mathematics String Manipulation
032	You are the Father: Maury Povich Style	✔️ Completed	Python	String Manipulation Hashmap
033	Treasure Hunt	✔️ Completed	Python	Pathfinding Recursive DFS Loops
034	Fax Machine	✔️ Completed	Python	Encoding
035	Count Your Coins	✔️ Completed	Python Ruby	Mathematics Loops
036	Zeckendorf Representation	✔️ Completed	Python Ruby Java Kotlin PHP	Greedy Algorithm Mathematics Arithmetic Numbers
037	Object Insertion	✔️ Completed	Python Ruby Java	2D Array Loops
038	Hidden Messages In Images	✔️ Completed	Python Ruby	Image Processing Loops
039	Hunger Games	✔️ Completed	Python	Object Sorting Hashmap
040	Credit Card Verifier (Luhn’s Algorithm)	✔️ Completed	Python Ruby Java C++ C# Kotlin	Check-digit
041	Prefix Code	✔️ Completed	Python	Trie String Manipulation Encoding
042	NATO-Alphabet's Odd Uncles	✔️ Completed	Python Ruby Java Kotlin	Pattern Recognition String Manipulation Loops Conditions
043	Mountain Map	✔️ Completed	Python Ruby Java Kotlin PHP	ASCII Art
044	The Broken Editor	✔️ Completed	Python Ruby Java Kotlin PHP	String Manipulation Arrays
045	Card Counting When Easily Distracted	✔️ Completed	Python Ruby	Probability Mathematics Hashmap String Manipulation
046	Robot Show	✔️ Completed	Python Ruby Java JavaScript C++ C C# D Dart TypeScript Clojure	Strive for Simplicity Array Sorting
047	Annihilation	✔️ Completed	Python	Simulation Hashmap Tuple
048	Detective Pikaptcha EP1	✔️ Completed	Python Python 2 Ruby	Maze Recursive DFS
049	Detective Pikaptcha EP2	✔️ Completed	Python	Maze Simulation DFS
050	A Child's Play	✔️ Completed	Python	Graph Simulation Hashmap
051	1000000000D WORLD	✔️ Completed	Python Ruby Java	Mathematics Dot Product
052	Blackjack solver	✔️ Completed	Python	Card Games Loops Conditions Strings
053	Where's Wally?	✔️ Completed	Python	Regular Expressions ASCII Art String Manipulation
054	Unique Prefixes	✔️ Completed	Python	Hashmap Array String Manipulation
055	Euclid’s Algorithm	✔️ Completed	Python Ruby Java JavaScript C++ C C# TypeScript	Recursion Mathematics
056	Lumen	✔️ Completed	Python	Loops 2D Array
057	Random Walk	✔️ Completed	Python Ruby Java C#	Simulation Hashmap
058	The Travelling Salesman Problem	✔️ Completed	Python	Graphs Greedy Algorithm
059	TicTacToe	✔️ Completed	Python	Simulation 2D Array String Manipulation
060	The Other Side	✔️ Completed	Python	DFS Graph Recursion
061	Azimut	✔️ Completed	Python Ruby Java	Maze Rotation
062	Personal Best	✔️ Completed	Python Ruby Java	Hashmap Arrays
063	Minimal Palindrome Distance	✔️ Completed	Python Ruby Java JavaScript C++ C C# TypeScript	Palindrome Loops
064	Dolbear's Law	✔️ Completed	Python	Mathematics Formula
065	Queen Control	✔️ Completed	Python	Chess Loops Conditions
066	Odd-Quad-Out	✔️ Completed	Python	2D Array Arithmetic Digit Counts
067	Reverse Minesweeper	✔️ Completed	Python Ruby	2D Array
068	Flip The Sign	✔️ Completed	Python	2D Array
069	Substitution Encoding	✔️ Completed	Python Ruby Java	Encoding 2D Array String Manipulation
070	The River I.	✔️ Completed	Python Ruby Java C++	Conditions
071	Van Eck's sequence	✔️ Completed	Python Ruby Java C++	Memoization Hashmap
072	Bank Robbers	✔️ Completed	Python Ruby	Mathematics Loops
073	Wordle Colorizer	✔️ Completed	Python	Hashmap String Manipulation
074	Insert to String	✔️ Completed	Python Ruby	Strive for Simplicity String Manipulation
075	Dungeons and Maps	✔️ Completed	Python Ruby Java	Pathfinding Hashmap
076	Balanced Ternary Computer: Encode	✔️ Completed	Python	Arithmetic
077	Rocks, Papers, Scissors-es	✔️ Completed	Python Ruby Java	Hashmap Simulation
078	Die Handedness	✔️ Completed	Python Ruby	Mathematics Geometry
079	Offset Arrays	✔️ Completed	Python Ruby	Hashmap Parsing
080	May the Triforce be with you!	✔️ Completed	Python Ruby Java JavaScript	ASCII Art Loops
081	Sum of Spiral's Diagonals	✔️ Completed	Python Ruby Java JavaScript C++ C C#	Optimization Mathematics
082	Popularity of Each Activity	✔️ Completed	Python Ruby	2D Array Mathematics
083	Simple Load Balancing	✔️ Completed	Python Ruby	Simulation Optimization Mathematics
084	Decode the Message	✔️ Completed	Python Ruby Java	Cryptography Encoding Modular Calculus
085	Bouncing Simulator	✔️ Completed	Python	2D Array Simulation
086	🤖 Robot Reach	✔️ Completed	Python Ruby Java JavaScript	Recursion
087	The Prime Twins - Part One	✔️ Completed	Python Ruby Java JavaScript C++ C C#	Mathematics Loops
088	Tile a Floor Differently	✔️ Completed	Python Ruby	ASCII Art 2D Array
089	GDQ - Binary Coded Decimal Clock	✔️ Completed	Python Ruby	String Manipulation
090	Distributing Candy	✔️ Completed	Python Ruby Java JavaScript C++ C C#	Array Conditions
091	Couple's Picture-Frame	✔️ Completed	Python Ruby	Mathematics String Manipulation ASCII Art
092	Caesar is the Chief	✔️ Completed	Python Ruby	Cipher Encryption
093	Max Area	✔️ Completed	Python Ruby	Mathematics Arrays
094	Add'em Up	✔️ Completed	Python Ruby Java JavaScript C	Greedy Algorithm Sorting
095	Benford's Law	✔️ Completed	Python Ruby	Probability Hashmap
096	Panel Count	✔️ Completed	Python Ruby	Hashmap Conditions
097	The Michelangelo Code	✔️ Completed	Python Ruby	Optimization String Manipulation
098	Shoot Enemy Aircraft	✔️ Completed	Python Ruby	Arrays Loops
099	Rotating Arrows	✔️ Completed	Python Ruby	2D Array Loops
100	Tile a Floor	✔️ Completed	Python Ruby	ASCII Art String Manipulation Loops
101	Rooks Movements	✔️ Completed	Python	Chess Conditions
102	Faro shuffle	✔️ Completed	Python	Loops
103	Folding Paper	✔️ Completed	Python Ruby	Mathematics Loops Sequences
104	Tree Paths	✔️ Completed	Python Ruby	Binary Tree Graphs
105	7-Segment Scanner	✔️ Completed	Python Ruby	ASCII Art String Manipulation Conditions Loops
106	Happy Numbers	✔️ Completed	Python Ruby	Data Types Loops
107	Page of Contents	✔️ Completed	Python Ruby	Parsing String Manipulation
108	Playing Card Odds	✔️ Completed	Python Ruby	Probability Sets Card Games
109	How high up does the beer go?	✔️ Completed	Python Ruby	Geometry
110	Ted's Compiler	✔️ Completed	Python Ruby	Parsing Stack
111	Kiss the Girls	✔️ Completed	Python Ruby	Probability
112	Cosmic Love	✔️ Completed	Python Ruby	Physics Mathematics
113	Horse-Racing Hyperduals	✔️ Completed	Python Ruby	Loops
114	Item Maker	✔️ Completed	Python	ASCII Art
115	Ulam Spiral	✔️ Completed	Python Ruby	Mathematics ASCII Art Primes
116	Number derivation	✔️ Completed	Python Ruby	Mathematics Arithmetic Derivative
117	Stunning Numbers	✔️ Completed	Python	Optimization String Manipulation
118	Pirate's Treasure	✔️ Completed	Python Ruby Java	Arrays Loops Conditions
119	Kangaroo Words	✔️ Completed	Python Ruby	Sorting Loops Conditions
120	Jack Silver: The Casino	✔️ Completed	Python Ruby Java	Strings
121	Bulk Email Generator	✔️ Completed	Python Ruby	String Manipulation
122	Onboarding	✔️ Completed	Python Ruby Java JavaScript C++ C C# Bash D Dart F# Go Groovy Kotlin Lua ObjectiveC PHP Pascal Perl Rust Scala Swift TypeScript VBNET Clojure Haskell OCaml	Conditions
123	Monday Tuesday Happy Days	✔️ Completed	Python Ruby	Array Condition
124	Rugby Score	✔️ Completed	Python Ruby	Conditions Loops
125	Self-Driving Car Testing	✔️ Completed	Python	ASCII Art
126	nD-Vector Sorting	✔️ Completed	Python Ruby	Topology Sorting 2D Array
127	Where am I going?	✔️ Completed	Python Ruby	Pathfinding Strings Loops Conditions
128	Tabloid Couple-Names 💕	✔️ Completed	Python Ruby	String Manipulation Loops
129	Create 'Turn Here' Signs	✔️ Completed	Python Ruby	ASCII Art Loops Conditions Logic
130	XML MDF-2016	✔️ Completed	Python Ruby	Hashmap Strings Parsing
131	Metric Units	✔️ Completed	Python Ruby	Mathematics Conversion
132	Digital Scoreboard	✔️ Completed	Python	ASCII Art Conditions Parsing
133	Snake Sort 2D	✔️ Completed	Python Ruby	Sorting
134	Histogram	✔️ Completed	Python	Mathematics ASCII Art
135	Make an Atari Font	✔️ Completed	Python	Bitboarding ASCII Art 2D Array String Manipulation
136	Is the King In Check? (Part 1)	✔️ Completed	Python Ruby	Chess Conditions
137	1D Bush Fire	✔️ Completed	Python Ruby	Array
138	Darts Checkout Routes	✔️ Completed	Python Ruby Java	DFS BFS Brute-Force
139	Save the Drone!	✔️ Completed	Python Ruby	Parsing String Hashmap
140	Furlongs per Fortnight	✔️ Completed	Python	String Manipulation Mathematics
141	Binary Image	✔️ Completed	Python Ruby	Arrays ASCII Art
142	Frame The Picture	✔️ Completed	Python	Loops String Manipulation
143	Build A Bookcase🔨	✔️ Completed	Python Ruby	ASCII Art Mathematics Loops Logic
144	Agent X, Mission 1 — The Caesar Cipher	✔️ Completed	Python	Cryptography Cipher
145	Someone's Acting Sus....	✔️ Completed	Python	Logic Loops
146	No More Pythons, Please!	✔️ Completed	Python	ASCII Art Loops Conditions 2D Array Strings
147	Touching Balls	✔️ Completed	Python	Mathematics Loops
148	1D Spreadsheet	✔️ Completed	Python	Memoization Dependancy Graph Lazy Evaluation
149	Reverse FizzBuzz	✔️ Completed	Python	Mathematics Intervals
150	Mountain Map Convergence	✔️ Completed	Python	ASCII Art
151	Triangle Toggle	✔️ Completed	Python	ASCII Art Mathematics 2D Array
152	Crop-Circles	✔️ Completed	Python Ruby	Geometry Mathematics 2D Array ASCII Art
153	Video Comments	✔️ Completed	Python Ruby	Sorting Hashmap Arrays
154	Logically Reasonable Inequalities	✔️ Completed	Python	Graph
155	Who is leading?	✔️ Completed	Python	Parsing Loops
156	Chinese Numbers	✔️ Completed	Python	ASCII Art Conditions Loops
157	Rocky Pohp's Concert Date	✔️ Completed	Python	Cryptography Number Theory Combinatorics
158	Vectors in Variables Dimensions	✔️ Completed	Python Ruby	Distances Arrays
159	ISBN Check Digit	✔️ Completed	Python	Check-Digit Arithmetic
160	Largest Number	✔️ Completed	Python	Mathematics String Manipulation
161	How Time Flies	✔️ Completed	Python	Strings
162	Square Spiral for Alien Contact 👽	✔️ Completed	Python	2D Array String Manipulation
163	Merlin's Magic Square	✔️ Completed	Python	Bitboarding Simulation Strive for Simplicity Arrays Logic
164	Key-Value Store	✔️ Completed	Python PHP	Parsing Condition String Maniplation
165	Blending Colors	✔️ Completed	Python	Geometry
166	Crazy List	✔️ Completed	Python Ruby PHP	Arithmetic
167	Next Car License Plate?	✔️ Completed	Python	Sequences Mathematics
168	Sand Fall	✔️ Completed	Python	ASCII Art Conditions Loops
169	Asteroids	✔️ Completed	Python	Image Processing
170	Graffiti on the Fence	✔️ Completed	Python	Intervals
171	Snail Run	✔️ Completed	Python	Arrays Loops
172	Egyptian Multiplication	✔️ Completed	Python	Mathematics Strings
173	Number Partition	✔️ Completed	Python	Backtracking DFS Number Theory Recursion
174	Artificial Emotional Intelligence	✔️ Completed	Python	Strings Arrays Lists
175	Gold Packing	✔️ Completed	Python	Recursion Arrays
176	Darts	✔️ Completed	Python	Collision Detection
177	Button Mash	✔️ Completed	Python Ruby	Numbers BFS
178	City Lights Part 1	✔️ Completed	Python	Distances 2D Array
179	Rectangular Block Spinner	✔️ Completed	Python	Loops Conditions ASCII Art
180	The River II.	✔️ Completed	Python	Memoization Artithmetic
181	Catching Up	✔️ Completed	Python	Pathfinding BFS Graphs Greedy Algorithm
182	Takuzu Solver (Easy Mode)	✔️ Completed	Python	Conditions 2D Array
183	Scaleable TicTacToe	✔️ Completed	Python	Loops Lists
184	Count as I Count	✔️ Completed	Python	Combinatorics Memoization
185	Next Growing Number	✔️ Completed	Python	Nummbers
186	City Lights Part 2	✔️ Completed	Python	Distances
187	Equivalent Resistance, Circuit Building	✔️ Completed	Python	Stack Parsing Physics
188	Peaks and Valleys in 2D Grid	✔️ Completed	Python	2D Array
189	Grandma's Serial Keys	✔️ Completed	Python	Mathematics
190	ASCII Art The Drunken Bishop Algorithm	✔️ Completed	Python	ASCII Art
191	Compiler CG86 (Easy Version)	✔️ Completed	Python	Arrays Hashmap Data Types Conditions Loops
192	Fix the Networks	✔️ Completed	Python	Conditions String Manipulation Numbers
193	Street Fighter : Level I	✔️ Completed	Python	Conditions Loops Hashmaps
194	Seeing Squares	✔️ Completed	Python	ASCII Art Parsing
195	Diagonal-achoo!!	✔️ Completed	Python	Simulation 2D Arrays Loops

Medium

No.	Puzzle Name	State	Language	Tags
01	Telephone Numbers	✔️ Completed	Python Ruby Java	Tries Set
02	War	✔️ Completed	Python	Queues
03	Shadows of the Knight - Episode 1	✔️ Completed	Python	Binary Search Intervals
04	Network Cabling	✔️ Completed	Python	Medians Distances Loops
05	Don't Panic!	✔️ Completed	Python	Conditions
06	Stock Exchange Loses	✔️ Completed	Python	Arrays Loops Conditions
07	Scrabble	✔️ Completed	Python	Loops Conditions
08	There is no Spoon - Episode 1	✔️ Completed	Python	2D Array Lists
09	Detective Pikaptcha EP3	✔️ Completed	Python	Maze Simulation DFS
10	The Cash Register	✔️ Completed	Python	DFS Memoization
11	Dwarfs Standing on the Shoulders of Giants	✔️ Completed	Python	Memoization DFS Graphs
12	Blunder - Episode 1	✔️ Completed	Python Python 2	State Machine Simulation Recursion
13	Mayan Calculation	✔️ Completed	Python	Radix Strings Mathematics
14	Frequency-Based Decryption	✔️ Completed	Python	Cryptography Encoding String Manipulation
15	Hidden Word	✔️ Completed	Python	2D Array String Manipulation
16	Gravity	✔️ Completed	Python Ruby	2D Array
17	Roman Sorting	✔️ Completed	Python Ruby	Sorting
18	Vote Counting	✔️ Completed	Python	Hashmap Loops
19	Magic Coloring	✔️ Completed	Python Ruby	DFS Flood Fill Recursion
20	Pachinko Jackpot	✔️ Completed	Python Ruby	Dynamic Programming Trees Memoization
21	Is the King In Check? (Part 2)	✔️ Completed	Python Ruby	Chess Conditions
22	The Sovereign's Game	✔️ Completed	Python	Greedy Algorithm Optimization Sorting
23	Finish the Eight Queens	✔️ Completed	Python	Backtracking Chess
24	Minimal Number of Swaps	✔️ Completed	Python Ruby Java JavaScript C++ C C# Bash	Array
25	Conway Sequence	✔️ Completed	Python	Sequences
26	The Gift	✔️ Completed	Python	Greedy Algorithm
27	Death First Search - Episode 1	✔️ Completed	Python	BFS Graphs
28	English Length Units Conversion	✔️ Completed	Python	BFS Graphs
29	Networking	✔️ Completed	Python	Graph Sets Loops
30	How many roads lead to Rome?	✔️ Completed	Python	Pathfinding Graphs
31	The Fall - Episode 1	✔️ Completed	Python	Conditions
32	Sky Maze Adventures 1	✔️ Completed	Python	BFS DFS Pathfinding
33	Find the Shortest Path Home	✔️ Completed	Python	Pathfinding BFS Coordinates Codnitions String Manipulation
34	Road to Mount Boom	✔️ Completed	Python	BFS DFS 2D Array
35	These Romans are crazy!	✔️ Completed	Python	String Manipulation
36	Train Passenger	✔️ Completed	Python	Pathfinding BFS Graphs
37	Wine from Kalbodia - Episode 1	✔️ Completed	Python	Parsing Lists
38	Monthly System	✔️ Completed	Python	Strings Modulus
39	Maximum Sub-Sequence	✔️ Completed	Python	Mathematics
40	Snakes and Ladders	✔️ Completed	Python	BFS DFS Pathfinding
41	Maze	✔️ Completed	Python	BFS Maze 2D Array
42	The Fastest	✔️ Completed	Python	Strings Parsing Sorting
43	Bust Speeding Vehicles	✔️ Completed	Python	Hashap Array
44	Dominoes Path	✔️ Completed	Python	Array
45	Swapping Elements	✔️ Completed	Python	Loops Arrays Sorting
46	Brackets, Extended Edition	✔️ Completed	Python	Loops Conditions Stack
47	Longest Road	✔️ Completed	Python	DFS
48	Cows in a Maze	✔️ Completed	Python	BFS DFS 2D Array Pathfinding
49	Brackets, Enhanced Edition	✔️ Completed	Python	Parsing Loops Conditions
50	Mirror Rotation	✔️ Completed	Python	DFS BFS Simulation Priority Queue Stack
51	Reverse Polish Notation	✔️ Completed	Python	Stack Interpreters Reverse Polish Notation
52	Valid Brackets in Code	✔️ Completed	Python	Regular Expression Stack String Manipulation Loops
53	Magic Stones	✔️ Completed	Python	Greedy Algorithm Stack
54	Binary Search Tree Traversal	✔️ Completed	Python	Binary Tree Graph Traversal
55	Various Number Spirals	✔️ Completed	Python	Loops
56	Flood Fill Example	✔️ Completed	Python	Flood Fill BFS
57	Porcupine Fever	✔️ Completed	Python	Simulation Loops
58	Tired Pac-Man	✔️ Completed	Python	DFS BFS Pathfinding Memoization Recursion
59	The Lost Child - Episode 1	✔️ Completed	Python	Pathfinding BFS 2D Array
60	Dungeon 3D	✔️ Completed	Python	Pathfinding Maze
61	Rubik®	✔️ Completed	Python Ruby Java JavaScript C++ C C# Bash	Mathematics Geometry
62	Christmas Tree	✔️ Completed	Python	Mathematics
63	Connect The Colours - Part 1	✔️ Completed	Python	DFS BFS Pathfinding Backtracking

Hard

No.	Puzzle Name	State	Language	Tags
01	Longest Palindrome	✔️ Completed	Python	Palindrome String
02	Magic count of Numbers	✔️ Completed	Python	Arithmetic Mathematics
03	The Greatest Number	✔️ Completed	Python	String Manipulation Conditions
04	Spreadsheet Labels	✔️ Completed	Python Ruby	Base Conversion String Manipulation
05	Connect Four	✔️ Completed	Python	2D Array
06	Staircases	✔️ Completed	Python	Memoization
07	11-Puzzle	✔️ Completed	Python	Pathfinding A*
08	KGood	✔️ Completed	Python	Strings Sets
09	Hangman	✔️ Completed	Python	String Manipulation
10	Surface	✔️ Completed	Python	Flood Fill BFS Memoization Recursion
11	Roller Coaster	✔️ Completed	Python	Dynamic Programming Memoization Simulation
12	Pandora's Bridges	✔️ Completed	Python	Graphs Trigonometry 3D Distances
13	The Hungry Duck - Part 1	✔️ Completed	Python	BFS 2D Array
14	The Hungry Duck - Part 2	✔️ Completed	Python	BFS 2D Array
15	Mystery Sums	✔️ Completed	Python	Parsing Strings
16	Candies	✔️ Completed	Python	DFS
17	Electrical Grid	✔️ Completed	Python	MST Graphs
18	CGX Formatter	✔️ Completed	Python	Strings Parsing
19	Unflood the World	✔️ Completed	Python	2D Array BFS
20	Alternative Vote	✔️ Completed	Python	Hashmap Simulation
21	Simplify Selection Ranges	✔️ Completed	Python	Ranges String
22	Chess Cavalry	✔️ Completed	Python	Pathfinding DFS Chess
23	The Holy Grail	✔️ Completed	Python	BFS Pathfinding
24	Erdős Number	✔️ Completed	Python	Graph Hashmap
25	Super Computer	✔️ Completed	Python	Scheduling Greedy Algorithm
26	Blunder - Episode 2	✔️ Completed	Python	Memoization Dynamic Programming Pathfinding Recursion
27	Connect the Colours - Part 2	✔️ Completed	Python	BFS DFS Backtracking Pathfinding

Very Hard

No.	Puzzle Name	State	Language	Tags
1	The Resistance	✔️ Completed	Python Ruby	Memoization Dynamic Programming Encoding Recursion
2	Recurring Decimals	✔️ Completed	Python Ruby Java JavaScript C++ C# Kotlin	Mathematics
3	Sliding Puzzle	✔️ Completed	Python	Pathfinding
4	Shadows of the Knight - Episode 2	❌ 62% Completed		Binary Search Intervals

Code Golf

Code golf is a challenge to achieve the shortest possible source code by using language specific tricks for a specific problem.

Easy

No.	Puzzle Name	State	Language	Code Size	Tags
1	The Descent	✔️ Completed	Python Ruby JavaScript Rust	49 37 69 282	Loops
2	Ascii Art	✔️ Completed	Python Ruby	119 108	Strings Loops Arrays
3	Unary	✔️ Completed	Python Ruby	116 107	Encoding Loops Conditions String
4	Power of Thor	✔️ Completed	Python Ruby	111 106	Conditions
5	Temperatures	✔️ Completed	Python Ruby	72 54	Arrays Loops Conditions
6	Don't Panic	✔️ Completed	Python	227	Conditions

Medium

No.	Puzzle Name	State	Language	Code Size	Tags
1	Telephone Numbers	✔️ Completed	Python Ruby	87 71	Sets Tries
2	Network Cabling	✔️ Completed	Python	123	Loops Distances Medians
3	Shadows of the Knight - Episode 1	✔️ Completed	Python	176	Binary Search Intervals
4	Dwarfs Standing on the Shoulders of Giants	✔️ Completed	Python	191	Memoization Recusion Graphs
5	Mayan Calculation	✔️ Completed	Python	366	Radix Strings Mathematics
6	Blunder - Episode 1	✔️ Completed	Python	773	State Machine Simulation

Hard

No.	Puzzle Name	State	Language	Code Size	Tags
1	The Labyrinth	❌ Not Completed			BFS Pathfinding
2	The Bridge	❌ Not Completed			DFS Backtracking
3	Vox Codei - Episode 1	❌ Not Completed			DFS Brute-force simulation
4	Super Computer	❌ Not Completed			Greedy Algorithm Scheduling
5	Roller Coaster	✔️ Completed	Python	446	Dynamic Programming Simulation
6	Surface	✔️ Completed	Python	499	BFS Flood Fill Memoization Recursion
7	The Fall - Episode 2	❌ Not Completed			Backtracking Pathfinding
8	Gnome Sequencing	❌ Not Completed			Permutation String
9	Blunder - Episode 3	❌ Not Completed			Regression Analysis

Very Hard

No.	Puzzle Name	State	Language	Code Size	Tags
1	Shadows of the Knight - Episode 2	❌ 62% Completed			Binary Search Intervals
2	The Resistance	✔️ Completed	Python Ruby	346 281	Dynamic Programming Encoding Memoization Recursion
3	The Fall - Episode 3	❌ Not Completed			Backtracking Pathfinding
4	Music Scores	❌ Not Completed			Encoding Image Processing Pattern Recognition
5	Vox Codei - Episode 2	❌ Not Completed			Pattern Recognition DFS Brute-force Simulation
6	Mars Lander - Episode 3	❌ Not Completed			Distances Trigonometry

Bot Programming

Bot progamming is a challenge to create an AI to run thorugh a simulation in the best method for a given task. This could be as simple as a rules based approach to neural networks. A solution is tested against other users solutions and ranked based on how well it performs against others.

Name	Players	Current League	League Rating	Tags	Code
Soak Overflow	3875	Legend Gold Silver Bronze Wood	178/202	Pathfinding Multi-agent	Wood 1 Wood 2 Wood 3 Wood 4

Optimization

Optimization is a mode where you need to optimise your code to provide the best possible outcome given a problem.