Dev Builds » 20210507-0747

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 d777ea79fff0f651bd948c881946cd06bebd9381
Author Vizvezdenec
Date 2021-05-07 07:47:17 UTC
Cleanup of likelyFailLow logic This patch broadens and simplifies definition of PvNode that is likely to fail low. New definition can be described as following "If node was already researched at depth >= current depth and failed low there" which is more logical than the previous version and takes less space + allows to not recompute it every time during move loop. Passed simplification STC https://tests.stockfishchess.org/tests/view/609148bf95e7f1852abd2e82 LLR: 2.93 (-2.94,2.94) <-2.50,0.50> Total: 20128 W: 1865 L: 1751 D: 16512 Ptnml(0-2): 63, 1334, 7165, 1430, 72 Passed simplification LTC https://tests.stockfishchess.org/tests/view/6091691295e7f1852abd2e8b LLR: 2.94 (-2.94,2.94) <-2.50,0.50> Total: 95128 W: 3498 L: 3481 D: 88149 Ptnml(0-2): 41, 2956, 41549, 2981, 37 closes https://github.com/official-stockfish/Stockfish/pull/3455 Bench: 3933037
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