Dev Builds » 20260913-0734

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	031dfeb437fa6b06cdbdf4ef89dfb82f6b83c4d3
Author	ayushthepiro11
Date	2026-09-13 07:34:19 UTC
Remove unused constexpr_lsb and lsb_index64 The de Bruijn constexpr LSB helper and its 64-entry lookup table have zero references repo-wide. Runtime lsb() uses compiler intrinsics (__builtin_ctzll / _BitScanForward64), and compile-time table builds no longer need it. Leftover from earlier refactors, same class as PawnPushOrAttacks removal. Verified with repo-wide grep and syntax check on bitboard.cpp / position.cpp / attacks.cpp. closes https://github.com/official-stockfish/Stockfish/pull/7158 No functional change