Dev Builds » 20260415-1835

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	b1fb50ae697265369d51c002603a621ffe8f9bfa
Author	rn5f107s2
Date	2026-04-15 18:35:32 UTC
Simplify away the special case for en passant in the legality check Since as of 94175524b1c06f1a4ce80a5640272a15120dcbbd the en passant square is only set if there is a legal en passant capture, the special handling is redundant Passed Non-Regression STC: https://tests.stockfishchess.org/tests/view/696ffb6512ee1f6231b96fe8 LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 79072 W: 20380 L: 20210 D: 38482. closes https://github.com/official-stockfish/Stockfish/pull/6560 No functional change