Dev Builds » 20260218-2046

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	a6d055d7e27ab3e29a42e8b94215102824760057
Author	sscg13
Date	2026-02-18 20:46:57 UTC
Update NNUE architecture to SFNNv13 and net nn-5227780996d3.nnue Since the introduction of Threat Inputs in SFNNv10 and its refinements, the accumulator/L1 size has significantly decreased. This has made it more computationally favorable to double the L2 size from 16 to 32. Failed STC: LLR: -2.98 (-2.94,2.94) <0.00,2.00> Total: 189184 W: 49649 L: 49635 D: 89900 Ptnml(0-2): 881, 22479, 47812, 22585, 835 https://tests.stockfishchess.org/tests/view/69928ef7bfe62dc95a624d5c Passed LTC: LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 37902 W: 9833 L: 9509 D: 18560 Ptnml(0-2): 35, 4074, 10408, 4400, 34 https://tests.stockfishchess.org/tests/view/69937936ff782f8eeef611e3 Passed VLTC SMP: LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 20576 W: 5455 L: 5191 D: 9930 Ptnml(0-2): 6, 1837, 6338, 2101, 6 https://tests.stockfishchess.org/tests/view/6994df0586e4a32314116399 closes https://github.com/official-stockfish/Stockfish/pull/6619 bench: 2396996