Introduce Quadruple Extensions #5211
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bench 2233743
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clang-format 17 needs to be run on this PR. (execution 8951844220 / attempt 1) |
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Can you get some STC/LTC data for the record? |
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Disservin
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May 5, 2024
This patch is the result of two tuning stages: 1. ~32k games at 60+0.6 th8: https://tests.stockfishchess.org/tests/view/662d9dea6115ff6764c7f817 2. ~193k games at 80+0.8 th6, based on PR #5211: https://tests.stockfishchess.org/tests/view/663587e273559a8aa857ca00. Based on extensive VVLTC tuning and testing both before and after #5211, it is observed that introduction of new extensions positively affected the search tune results. Passed VVLTC 70+0.7 th7 1st sprt: https://tests.stockfishchess.org/tests/view/6636c6f04b68b70d85801409 LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 18566 W: 4864 L: 4620 D: 9082 Ptnml(0-2): 0, 1608, 5827, 1844, 4 Passed VVLTC 70+0.7 th7 2nd sprt: https://tests.stockfishchess.org/tests/view/6636d4b84b68b70d85802ab7 LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 43142 W: 11141 L: 10838 D: 21163 Ptnml(0-2): 4, 3915, 13427, 4224, 1 Passed VVLTC 70+0.7 3rd sprt: https://tests.stockfishchess.org/tests/view/66376b4f9819650825aa230b LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 40322 W: 10374 L: 10076 D: 19872 Ptnml(0-2): 1, 3660, 12544, 3952, 4 The first two sprts were run against passed #5211. The third sprt was run against latest master. closes #5216 Bench: 2180675
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This patch introduces quadruple extensions, with the new condition of not ttPv. It also generalises all margins, so that extensions can still occur if conditions are only partially fulfilled, but with a stricter margin.
Failed STC:
LLR: -2.94 (-2.94,2.94) <0.00,2.00>
Total: 16096 W: 3984 L: 4228 D: 7884
Ptnml(0-2): 72, 2067, 4002, 1847, 60
https://tests.stockfishchess.org/tests/view/66316422d01fb9ac9bcdbdcd
Passed VVLTC 1:
LLR: 2.94 (-2.94,2.94) <0.00,2.00>
Total: 96660 W: 24550 L: 24210 D: 47900
Ptnml(0-2): 5, 8776, 30426, 9120, 3
https://tests.stockfishchess.org/tests/view/66361f2c74fa3f41ef2ee091
Passed VVLTC 2:
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 80546 W: 20495 L: 20120 D: 39931
Ptnml(0-2): 6, 7477, 24929, 7858, 3
https://tests.stockfishchess.org/tests/view/66350cf739ba8e443112b3fa
bench 2233743