Dev Builds » 20200407-1547

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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

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ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN


Commit ID 195a4fec6d6bd1f9e43f5b3e83a3dcf57dc73744
Author Vizvezdenec
Date 2020-04-07 15:47:01 UTC
Introduce capture history pruning This patch introduces a heuristic that is similar to countermove based pruning but for captures - capture history pruning. The idea is that we can (almost) safely prune really late captures with negative history if they don't give check so will most likely not produce some king-attacking tactic. passed STC LLR: 2.94 (-2.94,2.94) {-0.50,1.50} Total: 23748 W: 4758 L: 4529 D: 14461 Ptnml(0-2): 421, 2712, 5400, 2899, 442 passed LTC LLR: 2.96 (-2.94,2.94) {0.25,1.75} Total: 17330 W: 2415 L: 2190 D: 12725 Ptnml(0-2): 126, 1561, 5107, 1704, 167 closes bench 4417023
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