Dev Builds » 20181213-1220

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.


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 883367d21749eb91a5a3737338b5a7f507751a5a
Author Kurt
Date 2018-12-13 12:20:31 UTC
Asymmetrical 8x8 Pawn PSQT STC: LLR: 2.96 (-2.94,2.94) [0.00,5.00] Total: 13323 W: 3015 L: 2818 D: 7490 LTC: LLR: 2.96 (-2.94,2.94) [0.00,5.00] Total: 52294 W: 9093 L: 8756 D:34445 Some obvious followups to this are to further tune this PSQT, or try 8x8 for other pieces. As of now I don't plan on trying this for other pieces as I think the majority of the ELO it brings is for pawns and kings. Looking at the new values, the differences between kingside and queenside are quite significant. I am very hopeful that this a llows SF to understand and plan pawn structures even better than it already does. Cheers! Closes Bench: 3569243
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