Dev Builds » 20240523-1929

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 6db47ed71aac3b1667dd68a08c39bfde0fe0a2ab
Author Viren6
Date 2024-05-23 19:29:36 UTC
Addition of new scaling comments This patch is intended to prevent patches like 9b90cd8 and the subsequent reversion e3c9ed7 from happening again. Scaling behaviour of the reduction adjustments in the non-linear scaling section have been proven to >8 sigma: STC: https://tests.stockfishchess.org/tests/view/6647b19f6dcff0d1d6b05d52 Elo: 4.28 ± 0.8 (95%) LOS: 100.0% Total: 200000 W: 52555 L: 50094 D: 97351 Ptnml(0-2): 573, 22628, 51248, 24867, 684 nElo: 8.35 ± 1.5 (95%) PairsRatio: 1.10 VLTC: https://tests.stockfishchess.org/tests/view/6647b1b06dcff0d1d6b05d54 Elo: -1.48 ± 1.0 (95%) LOS: 0.2% Total: 100000 W: 25009 L: 25436 D: 49555 Ptnml(0-2): 11, 10716, 28971, 10293, 9 nElo: -3.23 ± 2.2 (95%) PairsRatio: 0.96 The else if condition is moved to the non scaling section based on: https://tests.stockfishchess.org/tests/view/664567a193ce6da3e93b3232 (It has no proven scaling) General comment improvements and removal of a redundant margin condition have also been included. closes https://github.com/official-stockfish/Stockfish/pull/5266 No functional change
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