Dev Builds » 20260801-0449

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	218c74ec4d97807afaab3a4dbda94f43e6e02647
Author	mstembera
Date	2026-08-01 04:49:10 UTC
Multi cut pruning correction history STC: https://tests.stockfishchess.org/tests/view/6a596dca5529b8472df81060 LLR: 2.93 (-2.94,2.94) <0.00,2.00> Total: 151072 W: 39154 L: 38677 D: 73241 Ptnml(0-2): 372, 17511, 39320, 17934, 399 LTC: https://tests.stockfishchess.org/tests/view/6a6508b6c054e285ae028b5f LLR: 2.96 (-2.94,2.94) <0.50,2.50> Total: 109866 W: 28697 L: 28240 D: 52929 Ptnml(0-2): 39, 11353, 31686, 11822, 33 As an experiment I pointed some LLMs at other engine github repos to look for ideas to port to SF. Most failed. This one by GPT 5.6 from https://github.com/Yoshie2000/PlentyChess passed. Congrats and credit to PlentyChess! closes https://github.com/official-stockfish/Stockfish/pull/7012 Bench: 2148099 Co-authored-by: Yoshie2000 <patrick.leonhardt@gmx.net>