Dev Builds » 20260710-1816

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	2d239de4604f4b7ff3679d4c31ccc8249fde3d00
Author	Linmiao Xu
Date	2026-07-10 18:16:42 UTC
Split NEON dense affine accumulation two ways Speedup measured locally with apple-silicon M3 Pro: ``` Result of 50 runs ================== base (./sf-master ) = 1570076 +/- 27215 test (...-neon-2chain) = 1578923 +/- 29000 diff = +8847 +/- 5700 speedup = +0.0056 P(speedup > 0) = 0.9988 CPU: 11 x arm Hyperthreading: off ``` Passed STC: https://tests.stockfishchess.org/tests/view/6a49678cf97ff95f78795b38 LLR: 4.43 (-2.94,2.94) <0.00,2.00> Total: 137696 W: 36041 L: 35477 D: 66178 Ptnml(0-2): 289, 14663, 38396, 15195, 305 closes https://github.com/official-stockfish/Stockfish/pull/6956 No functional change