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Viren6andJoost VandeVondele
f2b6b5cfc9
This replaces singularquietLMR with triple instead of double extending non-capture ttmoves that have value far below singularBeta. This threshold value is initially set to 200, there is scope for more scaling by reducing it as occured with double extensions. Passed STC: https://tests.stockfishchess.org/tests/view/65b683b8c865510db0274074 LLR: 2.95 (-2.94,2.94) <0.00,2.00> Total: 222912 W: 58141 L: 57535 D: 107236 Ptnml(0-2): 1063, 26244, 56154, 27014, 981 Passed LTC: https://tests.stockfishchess.org/tests/view/65bae6d4c865510db0278eb5 LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 66306 W: 16825 L: 16440 D: 33041 Ptnml(0-2): 40, 7374, 17952, 7735, 52 closes https://github.com/official-stockfish/Stockfish/pull/5027 bench 1394701