mirror of
https://github.com/official-stockfish/Stockfish.git
synced 2026-07-22 12:47:08 +00:00
8b6d8def30
Currently, the engine updates each level of the continuation history stack (ply -1, -2, -3, etc.) with fixed weights that are independent of one another. The idea behind CMHC is to scale the magnitude of these updates based on the consistency of the move's performance across the stack. By tracking how often a move has historically performed well (positive history) within the current continuation context, we can adjust the update magnitude dynamically. Moves that demonstrate "continuity" (appearing as strong candidates across multiple historical contexts) receive more significant updates, while unproven or inconsistent moves are dampened. Passed STC: LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 103264 W: 26954 L: 26541 D: 49769 Ptnml(0-2): 338, 11910, 26728, 12313, 343 https://tests.stockfishchess.org/tests/view/69a81702fac54339cf435a87 Passed LTC: LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 47406 W: 12259 L: 11920 D: 23227 Ptnml(0-2): 22, 5052, 13237, 5349, 43 https://tests.stockfishchess.org/tests/view/69aab480bd35724e4b290498 closes https://github.com/official-stockfish/Stockfish/pull/6653 Bench: 2356418 Co-Authored-By: Daniel Samek <samekdaniel@email.cz>