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@xu-shawn xu-shawn commented Nov 9, 2025

@daniel-monroe idea introduced in stockfish

Test  | test13
Elo   | 8.93 +- 5.30 (95%)
SPRT  | 8.0+0.08s Threads=1 Hash=16MB
LLR   | 2.95 (-2.94, 2.94) [0.00, 5.00]
Games | N: 5486 W: 1381 L: 1240 D: 2865
Penta | [48, 625, 1281, 716, 73]

https://clockworkopenbench.pythonanywhere.com/test/936/

Bench: 11277044

@TheRealGioviok
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Rebase this on latest main and retest. We merged a patch that probably interacts heavily with this one.

src/search.cpp Outdated

MoveGen movegen{pos};

if (!movegen.is_legal(tt_data->move)) {
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Shouldn't you just not probe at all in this case?

return tt_data->score;
}

MoveGen movegen{pos};
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Would be nice to reuse this later in search.

bench 11206186
bench 11277044
bench 11822779
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2 participants