Dev Builds » 20260726-1046

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	453f220763fc756b846187358231566f8dbe46d7
Author	Linmiao Xu
Date	2026-07-26 10:46:55 UTC
AVX-512 paired activations Speedup measured by @anematode ``` Result of 100 runs base (...kfish.master) = 1876128 +/- 4698 test (./stockfish ) = 1888088 +/- 3218 diff = +11960 +/- 5722 speedup = +0.0064 P(speedup > 0) = 1.0000 ``` Passed STC: https://tests.stockfishchess.org/tests/view/6a5be3ff5529b8472df81662 LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 86752 W: 22568 L: 22209 D: 41975 Ptnml(0-2): 200, 8676, 25260, 9045, 195 closes https://github.com/official-stockfish/Stockfish/pull/6994 No functional change