Dev Builds » 20180714-0613

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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 d2d4e85f25061aacd65a8b458b79cad15b74a5bb
Author candirufish
Date 2018-07-14 06:13:15 UTC
Tuned Values after 2 million spsa games Various king and pawn eval values tuned after 2 million games. Rounding slightly adjusted. LTC: LLR: 2.95 (-2.94,2.94) [0.00,4.00] Total: 32783 W: 5852 L: 5588 D: 21343 STC: LLR: 3.23 (-2.94,2.94) [0.00,4.00] Total: 44380 W: 10201 L: 9841 D: 24338 I think I reached the limit of the fishtest framework. It frequently crashed at 2 million games already. The small values also moved a lot throughout the entire tuning session though with smaller margin. The passed danger and close enemies values seems the most sensitive (changing close enemies alone to 6 failed before but now it passes), whether or not they are close to optimal I don't know, but it seems some parameters are also correlated to others. Closes bench: 5103722
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