Dev Builds » 20260402-1832

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	8a1b0f8b044ffbaf7341325de978d21382d7ef60
Author	Linmiao Xu
Date	2026-04-02 18:32:43 UTC
Reorder NNUE accumulator evals Makes eval calls more cache-friendly on a hot path. Hints of a speedup found locally: ``` Result of 30 runs ================== base (...ockfish-base) = 1754124 +/- 2887 test (...h-eval-order) = 1757848 +/- 2412 diff = +3724 +/- 1368 speedup = +0.0021 P(speedup > 0) = 1.0000 CPU: 16 x arm Hyperthreading: off ``` Passed STC: https://tests.stockfishchess.org/tests/view/69c84f3cf40d95b975597c21 LLR: 3.36 (-2.94,2.94) <0.00,2.00> Total: 335840 W: 87022 L: 86257 D: 162561 Ptnml(0-2): 932, 36760, 91816, 37435, 977 closes https://github.com/official-stockfish/Stockfish/pull/6693 No functional change