Dev Builds » 20260913-0733

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	82d73d0a9e7cf3e1cd6c56c012ca69dff2f2ed32
Author	mstembera
Date	2026-09-13 07:33:22 UTC
Optimize both_attacks_bb() STC: https://tests.stockfishchess.org/tests/view/6a9e3aada8284b37a0a04dac LLR: 2.93 (-2.94,2.94) <0.00,2.00> Total: 166432 W: 42797 L: 42332 D: 81303 Ptnml(0-2): 262, 17204, 47775, 17757, 218 Shorten the rook dependency chain. _mm256_castsi256_si128() compiles away. closes https://github.com/official-stockfish/Stockfish/pull/7154 No functional change