Dev Builds » 20260625-1104

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	d64835051e9752ad1d9e8ebfb4655753da76741b
Author	Michael Chaly
Date	2026-06-25 11:04:20 UTC
Do more aggressive probCut when improving. If improving is true reduce depth of probCut search by 1. Passed STC: https://tests.stockfishchess.org/tests/view/6a2a6ceb17167cbe7100a909 LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 119136 W: 30591 L: 30158 D: 58387 Ptnml(0-2): 323, 13831, 30845, 14228, 341 Passed LTC: https://tests.stockfishchess.org/tests/view/6a2d65a40d5d4b19d080537f LLR: 2.96 (-2.94,2.94) <0.50,2.50> Total: 186552 W: 47377 L: 46755 D: 92420 Ptnml(0-2): 89, 20047, 52395, 20643, 102 closes https://github.com/official-stockfish/Stockfish/pull/6914 Bench: 2422062