Dev Builds » 20260922-1602

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 15. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

Host	Duration	Avg Base NPS	Games	WLD	Standard Elo	Ptnml(0-2)	Gamepair Elo

Test Detail

ID	Host	Base NPS	Games	WLD	Standard Elo	Ptnml(0-2)	Gamepair Elo	CLI	PGN

Commit

Commit ID	205f005283fa67c2f691152f4ad2ec09ed654b42
Author	mstembera
Date	2026-09-22 16:02:11 UTC
Use permute in both_attacks_bb() passed first STC: https://tests.stockfishchess.org/tests/view/6aa33616a8284b37a0a05714 LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 94080 W: 24281 L: 23914 D: 45885 Ptnml(0-2): 120, 9727, 26969, 10114, 110 passed second STC: https://tests.stockfishchess.org/tests/view/6ab013c7dbd128aac8fd5a68 LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 104064 W: 26615 L: 26235 D: 51214 Ptnml(0-2): 124, 10745, 29910, 11133, 120 Generated with Astra closes https://github.com/official-stockfish/Stockfish/pull/7181 No functional change

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