Dev Builds » 20201212-0831

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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 d706ae62d73d90c0f80cdccd58384a347295d549
Author FauziAkram
Date 2020-12-12 08:31:28 UTC
New Imbalance Tables Tweak Imbalance tables tweaked to contain MiddleGame and Endgame values, instead of a single value. The idea started from Fisherman, which requested my help to tune the values back in June/July, so I tuned the values back then, and we were able to accomplish good results, but not enough to pass both STC and LTC tests. So after the recent changes, I decided to give it another shot, and I am glad that it was a successful attempt. A special thanks goes also to mstembera, which notified me a simple way to let the patch perform a little better. Passed STC: LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 115976 W: 23124 L: 22695 D: 70157 Ptnml(0-2): 2074, 13652, 26285, 13725, 2252 Passed LTC: LLR: 2.94 (-2.94,2.94) {0.25,1.25} Total: 156304 W: 20617 L: 20024 D: 115663 Ptnml(0-2): 1138, 14647, 46084, 15050, 1233 closes Bench: 4278746
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