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Chess engine: Stockfish 20090418 and NNUE


Stockfish - UCI chess engine, compiled by Vizvezdenec
Rating JCER=3294

Timestamp: 1599238366
Adjust penalty on refuted early quiet moves

This patch changes how previous early moves are penalized in case search finds a best move. Here, the first quiet move that was not a transposition table move is penalized.

passed STC
https://tests.stockfishchess.org/tests/view/5f51d839ba100690c5cc5f69
LLR: 2.94 (-2.94,2.94) {-0.25,1.25}
Total: 10088 W: 1150 L: 997 D: 7941 Elo +5.27
Ptnml(0-2): 41, 772, 3278, 899, 54

passed LTC
https://tests.stockfishchess.org/tests/view/5f51e435ba100690c5cc5f76
LLR: 2.93 (-2.94,2.94) {0.25,1.25}
Total: 30808 W: 1564 L: 1405 D: 27839 Elo +1.79
Ptnml(0-2): 19, 1245, 12717, 1404, 19

bench 3983758

Stockfish 20090418 and NNUE download


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