Tweak continuation history bonus dependent on ply. #5267
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This patch is based on following tuning https://tests.stockfishchess.org/tests/view/6648b2eb308cceea45533abe by only using the tuned factors for the continuation history. Passed STC: LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 99904 W: 25865 L: 25457 D: 48582 Ptnml(0-2): 281, 11705, 25578, 12101, 287 https://tests.stockfishchess.org/tests/view/6648c136308cceea45533af8 Passed LTC: LLR: 2.96 (-2.94,2.94) <0.50,2.50> Total: 36402 W: 9362 L: 9039 D: 18001 Ptnml(0-2): 20, 3952, 9951, 4241, 37 https://tests.stockfishchess.org/tests/view/6648ee3cb8fa20e74c39f3fd Bench: 1917762
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Here a chart of the change dependent on ply for all the histories. There we see that for cmh the biggest change occurs.
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This patch is based on following tuning https://tests.stockfishchess.org/tests/view/6648b2eb308cceea45533abe by only using the tuned factors for the continuation history.
Passed STC:
LLR: 2.94 (-2.94,2.94) <0.00,2.00>
Total: 99904 W: 25865 L: 25457 D: 48582
Ptnml(0-2): 281, 11705, 25578, 12101, 287
https://tests.stockfishchess.org/tests/view/6648c136308cceea45533af8
Passed LTC:
LLR: 2.96 (-2.94,2.94) <0.50,2.50>
Total: 36402 W: 9362 L: 9039 D: 18001
Ptnml(0-2): 20, 3952, 9951, 4241, 37
https://tests.stockfishchess.org/tests/view/6648ee3cb8fa20e74c39f3fd
Bench: 1917762