Dev Builds » 20250521-0525

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 54fb42ddf8b242e46f5ef2d2a0d481ed5aa5fe7b
Author Nonlinear2
Date 2025-05-21 05:25:40 UTC
clean up code **Non functional changes:** in search.cpp: - an unnecessary pair of parenthesis in the IIR condition has been removed. - refactored the stalemate trap detection code in movepick.cpp: - use the variables `from`, `to`, `piece`, `pieceType` and `capturedPiece` instead of calling the same functions multiple times in `MovePicker::score()`. - rename `MovePicker::other_piece_types_mobile()`. **Functional changes:** - make sure the processed move is always legal in `MovePicker::other_piece_types_mobile()`. passed non regression STC: https://tests.stockfishchess.org/tests/view/6829da686ec7634154f99faf LLR: 2.93 (-2.94,2.94) <-1.75,0.25> Total: 95680 W: 24962 L: 24820 D: 45898 Ptnml(0-2): 221, 9622, 28025, 9738, 234 Passed non regression LTC: https://tests.stockfishchess.org/tests/view/682a102c6ec7634154f9a086 LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 117666 W: 30065 L: 29957 D: 57644 Ptnml(0-2): 45, 10173, 38291, 10277, 47 Run of 10k games on the stalemate opening book: https://tests.stockfishchess.org/tests/view/682b114e6ec7634154f9aa2d Elo: 0.76 ± 0.9 (95%) LOS: 95.3% Total: 10000 W: 4637 L: 4615 D: 748 Ptnml(0-2): 0, 75, 4828, 97, 0 nElo: 5.83 ± 6.8 (95%) PairsRatio: 1.29 closes https://github.com/official-stockfish/Stockfish/pull/6080 Bench: 2422771
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