Dev Builds » 20250928-1851

You are viewing an old NCM Stockfish dev build test. You may find the most recent dev build tests using Stockfish 15 as the baseline here.

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NCM plays each Stockfish dev build 20,000 times against Stockfish 14. 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 bbad001a4921e8351b42d6231b7d27c8c3ac9446
Author FauziAkram
Date 2025-09-28 18:51:34 UTC
Double PawnHistory size and update formula Doubling PAWN_HISTORY_SIZE to 1024. So with that, we can apply a stronger learning signal. The bonus/malus multipliers in the update_quiet_histories function have been increased accordingly. Passed STC: LLR: 2.97 (-2.94,2.94) <0.00,2.00> Total: 111008 W: 29136 L: 28708 D: 53164 Ptnml(0-2): 367, 12870, 28609, 13284, 374 https://tests.stockfishchess.org/tests/view/68c201d659efc3c96b61117e Passed LTC: LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 117210 W: 30142 L: 29664 D: 57404 Ptnml(0-2): 49, 12532, 32970, 13000, 54 https://tests.stockfishchess.org/tests/view/68c20a6259efc3c96b6111ef closes https://github.com/official-stockfish/Stockfish/pull/6306 Bench: 2788334
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