Dev Builds » 20260706-0933

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	2cbf39f845a036456402bfbe00a51126872825f3
Author	Linmiao Xu
Date	2026-07-06 09:33:51 UTC
Split NEON sparse affine accumulation three ways Speedup measured locally with apple-silicon M3 Pro: ``` Result of 50 runs ================== base (./sf_master ) = 1817788 +/- 4388 test (...on_sparse_3c) = 1839826 +/- 5482 diff = +22039 +/- 3215 speedup = +0.0121 P(speedup > 0) = 1.0000 CPU: 11 x arm Hyperthreading: off ``` Passed STC: https://tests.stockfishchess.org/tests/view/6a496a49f97ff95f78795b3d LLR: 2.92 (-2.94,2.94) <0.00,2.00> Total: 44384 W: 11659 L: 11351 D: 21374 Ptnml(0-2): 86, 4673, 12406, 4901, 126 closes https://github.com/official-stockfish/Stockfish/pull/6951 No functional change