Dev Builds » 20260204-1726

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 fac506bdf3f0ed46fd0823ff1ed592824f91aa5a
Author sscg13
Date 2026-02-04 17:26:28 UTC
Update NNUE architecture to SFNNv11 and net nn-3dd094f3dfcf.nnue Removes threat features of the form piece -> king, thus saving 13MB of net space and approximately 0.8 threat feature updates per incremental accumulator update. Passed non-regression STC: LLR: 2.93 (-2.94,2.94) <-1.75,0.25> Total: 33664 W: 8864 L: 8636 D: 16164 Ptnml(0-2): 136, 3926, 8501, 4112, 157 https://tests.stockfishchess.org/tests/view/6981dcda4776a4e6e7fef2ac Passed non-regression LTC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 46896 W: 12077 L: 11881 D: 22938 Ptnml(0-2): 41, 5118, 12924, 5334, 31 https://tests.stockfishchess.org/tests/view/69827c6beb87369ff4d0c7d5 closes https://github.com/official-stockfish/Stockfish/pull/6593 bench: 2668754
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