Dev Builds » 20250213-1849

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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	9cc15b30490675713466b6746d4afdce5c715bd6
Author	Michael Chaly
Date	2025-02-13 18:49:54 UTC
Do more reductions for cut nodes without a tt move Logic is somewhat similar to IIR but in LMR. Usually things like reducing more in IIR scale badly but this patch does this in LMR where reducing more for cutNodes is in general good, so I believe there is no non-linear scaling. Passed STC: https://tests.stockfishchess.org/tests/view/67abc9aaa04df5eb8dbeb452 LLR: 2.93 (-2.94,2.94) <0.00,2.00> Total: 42304 W: 11223 L: 10892 D: 20189 Ptnml(0-2): 184, 4904, 10669, 5187, 208 Passed LTC: https://tests.stockfishchess.org/tests/view/67abcd7ba04df5eb8dbeb96c LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 32334 W: 8386 L: 8074 D: 15874 Ptnml(0-2): 26, 3446, 8916, 3748, 31 closes https://github.com/official-stockfish/Stockfish/pull/5875 Bench: 2612849