Dev Builds » 20260504-0633

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	1554a2ca0b85c8fa94cfe8f4b68bd85e62107d6c
Author	Timothy Herchen
Date	2026-05-04 06:33:01 UTC
Precompute moves and use magics index as compress mask on AVX512ICL Passed STC https://tests.stockfishchess.org/tests/view/69f6df65b64b50e29dbed427 LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 112224 W: 29195 L: 28782 D: 54247 Ptnml(0-2): 312, 12345, 30381, 12766, 308 Local speedup: ``` Result of 100 runs base (...kfish.master) = 2050387 +/- 5497 test (./stockfish ) = 2069598 +/- 4426 diff = +19211 +/- 7468 speedup = +0.0094 P(speedup > 0) = 1.0000 ``` closes https://github.com/official-stockfish/Stockfish/pull/6797 No functional change