Dev Builds » 20200816-0620

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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 cd0b8b4cf28208fffef931322749205a0ddc6066
Author Joost VandeVondele
Date 2020-08-16 06:20:32 UTC
Use NNUE more for fortresses Increases the use of NNUE evaluation in positions without captures/pawn moves, by increasing the NNUEThreshold threshold with rule50_count. This patch will force Stockfish to use NNUE eval more and more in materially unbalanced positions, when it seems that the classical eval is struggling to win and only manages to shuffle. This will ask the (slower) NNUE eval to double-check the potential fortress branches of the search tree, but only when necessary. passed STC: LLR: 2.93 (-2.94,2.94) {-0.50,1.50} Total: 51824 W: 5836 L: 5653 D: 40335 Ptnml(0-2): 264, 4356, 16512, 4493, 287 passed LTC: LLR: 2.93 (-2.94,2.94) {0.25,1.75} Total: 29768 W: 1747 L: 1590 D: 26431 Ptnml(0-2): 33, 1347, 11977, 1484, 43 closes Bench: 4173967
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