Dev Builds » 20250202-1247

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.

Use this dev build

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 dabffbceffee2e68352bf5865987d5b2a91ce410
Author Michael Chaly
Date 2025-02-02 12:47:52 UTC
Make pruning at ttpv nodes more aggressive Continuation of work done by @FauziAkram and @Viren6 They had a series of patches that decrease pruning for ttPv nodes - and it passed as a gainer at lower time controls while revert passed as a gainer at higher time controls. So it's a logical continuation of this work that increases pruning for ttPv nodes in hopes of scaling to longer TCs. Fixed games STC: https://tests.stockfishchess.org/tests/view/679ee3910774dfd78deb0efd Elo: -4.98 ± 2.1 (95%) LOS: 0.0% Total: 28584 W: 7229 L: 7639 D: 13716 Ptnml(0-2): 143, 3579, 7219, 3247, 104 nElo: -9.54 ± 4.0 (95%) PairsRatio: 0.90 Passed VVLTC with STC bounds: https://tests.stockfishchess.org/tests/view/679d21f70774dfd78deaf553 LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 323282 W: 83729 L: 83105 D: 156448 Ptnml(0-2): 37, 29842, 101269, 30446, 47 Passed VVLTC with LTC bounds: https://tests.stockfishchess.org/tests/view/679e7a970774dfd78deb0cd3 LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 113712 W: 29485 L: 29051 D: 55176 Ptnml(0-2): 13, 10376, 35640, 10818, 9 closes https://github.com/official-stockfish/Stockfish/pull/5844 Bench: 2964045
Copyright 2011–2025 Next Chess Move LLC