 Viren6andDisservin
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c8bc2ce4fa
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Improve ttPv reduction
This patch allows a partial reduction decrease when a node is likely to
fail low, and increases the reduction decrease when a node has failed
high.
Passed STC:
https://tests.stockfishchess.org/tests/view/65a626e779aa8af82b9722bc
LLR: 2.93 (-2.94,2.94) <0.00,2.00>
Total: 157824 W: 40332 L: 39835 D: 77657
Ptnml(0-2): 543, 18617, 40098, 19108, 546
Passed LTC:
https://tests.stockfishchess.org/tests/view/65a7290279aa8af82b97328a
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 57228 W: 14475 L: 14111 D: 28642
Ptnml(0-2): 34, 6278, 15633, 6628, 41
closes https://github.com/official-stockfish/Stockfish/pull/4994
Bench: 1364759
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2024-01-17 18:56:37 +01:00 |
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Viren6andDisservin
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28f8663f39
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Modify ttPV reduction
This patch modifies ttPV reduction by reducing 1 more unless ttValue is above alpha.
Inspired from @pb00068 https://tests.stockfishchess.org/tests/view/658060796a3b4f6202215f1f
Passed STC:
https://tests.stockfishchess.org/tests/view/6591867679aa8af82b958328
LLR: 2.94 (-2.94,2.94) <0.00,2.00>
Total: 37856 W: 9727 L: 9407 D: 18722
Ptnml(0-2): 99, 4444, 9568, 4672, 145
Passed LTC:
https://tests.stockfishchess.org/tests/view/6591d9b679aa8af82b958a6c
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 128256 W: 32152 L: 31639 D: 64465
Ptnml(0-2): 64, 14364, 34772, 14851, 77
closes https://github.com/official-stockfish/Stockfish/pull/4957
Bench: 1176235
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2024-01-04 15:49:33 +01:00 |
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Viren6andJoost VandeVondele
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887bbd8b3d
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Remove setting of static to none if in check in qsearch
Small simplification
Passed non-regression STC:
https://tests.stockfishchess.org/tests/view/6487924d713491385c8034ae
LLR: 2.93 (-2.94,2.94) <-1.75,0.25>
Total: 59616 W: 15885 L: 15703 D: 28028
Ptnml(0-2): 144, 6130, 17086, 6296, 152
closes https://github.com/official-stockfish/Stockfish/pull/4618
No functional change.
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2023-06-14 18:33:56 +02:00 |
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