Dev Builds » 20201223-1917

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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.


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 ID 45b05328b6d10b1f72786a59d78ae95c17ec40dd
Author FauziAkram
Date 2020-12-23 19:17:57 UTC
Tweak the formulas for unsafeSquares We give more bonus for a special case: If there are some enemy squares occupied or attacked by the enemy on the passed pawn span, but if they are all attacked by our pawn, use new intermediate factor 30. The main credit goes to Rocky for the idea, with additional tuning and tests. Passed STC: LLR: 2.95 (-2.94,2.94) {-0.25,1.25} Total: 96464 W: 19233 L: 18834 D: 58397 Ptnml(0-2): 1683, 11327, 21950, 11452, 1820 Passed LTC: LLR: 2.94 (-2.94,2.94) {0.25,1.25} Total: 81320 W: 10784 L: 10352 D: 60184 Ptnml(0-2): 602, 7524, 24044, 7820, 670 closes Bench: 4338972
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