Dev Builds » 20200407-1547

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.

Summary

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

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 https://tests.stockfishchess.org/tests/view/5e8c60d40ffd2be7f15e5470 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 https://tests.stockfishchess.org/tests/view/5e8c72bf0ffd2be7f15e547f 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 https://github.com/official-stockfish/Stockfish/pull/2618 bench 4417023
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