Dev Builds » 20170429-0329

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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 b1b19343cd1f5ec65084dc11a0a0b4d5ece2a24b
Author Joost VandeVondele
Date 2017-04-29 03:29:04 UTC
Copy killers in the movepicker ss->killers can change while the movepicker is active. The reason ss->killers changes is related to the singular extension search in the moves loop that calls search<> recursively with ss instead of ss+1, effectively using the same stack entry for caller and callee. By making a copy of the killers, the movepicker does the right thing nevertheless. Tested as a bug fix STC: LLR: 2.95 (-2.94,2.94) [-3.00,1.00] Total: 70845 W: 12752 L: 12716 D: 45377 LTC: LLR: 2.96 (-2.94,2.94) [-3.00,1.00] Total: 28368 W: 3730 L: 3619 D: 21019 Bench: 6465887 Closes #1085
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