remove quiet ttMove extensions #5049
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remove quiet ttMove extensions. Passed STC: https://tests.stockfishchess.org/tests/view/65c6934cc865510db0286e90 LLR: 2.99 (-2.94,2.94) <-1.75,0.25> Total: 54016 W: 14065 L: 13854 D: 26097 Ptnml(0-2): 231, 6381, 13581, 6576, 239 Passed LTC: https://tests.stockfishchess.org/tests/view/65c72b91c865510db0287a1a LLR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 55098 W: 13850 L: 13658 D: 27590 Ptnml(0-2): 37, 6257, 14777, 6433, 45 Bench 1091284
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Viren6
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Feb 12, 2024
author Stefan Geschwentner <stgeschwentner@gmail.com> 1706818188 +0100 committer Viren6 <94880762+Viren6@users.noreply.github.com> 1707728699 +0000 Tweak capture scoring for move ordering Move divisor from capture scoring to good capture check and sligthly increase it. This has several effects: - its a speedup because for quience and probcut search the division now never happens. For main search its delayed and can be avoided if a good capture triggers a cutoff - through the higher resolution of scores we have a more granular sorting STC: https://tests.stockfishchess.org/tests/view/65bf2a93c865510db027dc27 LLR: 2.93 (-2.94,2.94) <0.00,2.00> Total: 470016 W: 122150 L: 121173 D: 226693 Ptnml(0-2): 2133, 55705, 118374, 56644, 2152 LTC: https://tests.stockfishchess.org/tests/view/65c1d16dc865510db0281339 LLR: 2.96 (-2.94,2.94) <0.50,2.50> Total: 98988 W: 25121 L: 24667 D: 49200 Ptnml(0-2): 77, 10998, 26884, 11464, 71 closes official-stockfish#5036 Bench: 1233867 Refactor history score calculation Passed STC: https://tests.stockfishchess.org/tests/view/65ad08b179aa8af82b979dd1 LLR: 2.93 (-2.94,2.94) <-1.75,0.25> Total: 161376 W: 41582 L: 41498 D: 78296 Ptnml(0-2): 633, 19354, 40611, 19476, 614 Passed LTC: https://tests.stockfishchess.org/tests/view/65af966fc865510db026c0f0 LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 116526 W: 29269 L: 29143 D: 58114 Ptnml(0-2): 71, 13252, 31509, 13342, 89 closes official-stockfish#5006 Bench: 1317504 Simplify the extension formula Simplify the extension formula in the case of cutNode by removing the depth condition and always setting extension to -2. Passed STC: LLR: 2.97 (-2.94,2.94) <-1.75,0.25> Total: 277280 W: 70760 L: 70802 D: 135718 Ptnml(0-2): 971, 31775, 73153, 31807, 934 https://tests.stockfishchess.org/tests/view/65ad08f779aa8af82b979dd6 Passed LTC: LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 452976 W: 112992 L: 113215 D: 226769 Ptnml(0-2): 266, 51041, 124112, 50788, 281 https://tests.stockfishchess.org/tests/view/65ae466fc865510db026a760 closes official-stockfish#5021 Bench: 1492957 Simplify LMR condition Apply LMR on captures the same way it is applied on quiets Passed Non-Reg STC: https://tests.stockfishchess.org/tests/view/65bbf39bc865510db027a14a LLR: 2.93 (-2.94,2.94) <-1.75,0.25> Total: 77152 W: 19970 L: 19791 D: 37391 Ptnml(0-2): 304, 9159, 19496, 9288, 329 Passed Non-Reg LTC: https://tests.stockfishchess.org/tests/view/65bc8889c865510db027ac9e LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 103230 W: 25997 L: 25858 D: 51375 Ptnml(0-2): 71, 11687, 27958, 11830, 69 Hit rate of removed condition (!ss->ttPv || !capture || (cutNode && (ss - 1)->moveCount > 1)) Total 1253801 Hits 1228904 Hit Rate (%) 98.0143 Hit rate of previous LMR (depth >= 2 && moveCount > 1 + rootNode && ...) Total 1253801 Hits 727234 Hit Rate (%) 58.0023 Hit rate of simplified LMR (depth >= 2 && moveCount > 1 + rootNode) Total 1201839 Hits 713540 Hit Rate (%) 59.3707 closes official-stockfish#5028 Bench: 1438224 Remove simple eval With the recent introduction of the dual NNUE, the need for simple eval is no longer there. Passed STC: https://tests.stockfishchess.org/tests/view/65c1f735c865510db0281652 LLR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 85312 W: 22009 L: 21837 D: 41466 Ptnml(0-2): 334, 10155, 21567, 10205, 395 Passed LTC: https://tests.stockfishchess.org/tests/view/65c2d64bc865510db0282810 LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 49956 W: 12596 L: 12402 D: 24958 Ptnml(0-2): 28, 5553, 13624, 5743, 30 closes official-stockfish#5037 Bench 1213676 Simplify opponent movecount reduction This removes the reduction decrease that occured when the previous ply had a movecount greater than 7. Passed STC: https://tests.stockfishchess.org/tests/view/65c3f6dac865510db0283ef6 LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 11968 W: 3205 L: 2953 D: 5810 Ptnml(0-2): 38, 1310, 3064, 1506, 66 Passed LTC: https://tests.stockfishchess.org/tests/view/65c42377c865510db0284217 LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 35676 W: 9113 L: 8905 D: 17658 Ptnml(0-2): 22, 3893, 9802, 4097, 24 closes official-stockfish#5040 Bench: 1148379 Remove check extension Passed simplification STC: https://tests.stockfishchess.org/tests/view/65c38d2ac865510db02836cf LLR: 2.93 (-2.94,2.94) <-1.75,0.25> Total: 52288 W: 13578 L: 13371 D: 25339 Ptnml(0-2): 197, 6171, 13265, 6250, 261 Passed simplification LTC: https://tests.stockfishchess.org/tests/view/65c4470ec865510db0284473 LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 44958 W: 11255 L: 11055 D: 22648 Ptnml(0-2): 37, 4962, 12274, 5176, 30 closes official-stockfish#5041 Bench: 1116591 Remove quiet tt move extensions Passed STC: https://tests.stockfishchess.org/tests/view/65c6934cc865510db0286e90 LLR: 2.99 (-2.94,2.94) <-1.75,0.25> Total: 54016 W: 14065 L: 13854 D: 26097 Ptnml(0-2): 231, 6381, 13581, 6576, 239 Passed LTC: https://tests.stockfishchess.org/tests/view/65c72b91c865510db0287a1a LLR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 55098 W: 13850 L: 13658 D: 27590 Ptnml(0-2): 37, 6257, 14777, 6433, 45 closes official-stockfish#5049 Bench: 1027182
TierynnB
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Feb 14, 2024
Passed STC: https://tests.stockfishchess.org/tests/view/65c6934cc865510db0286e90 LLR: 2.99 (-2.94,2.94) <-1.75,0.25> Total: 54016 W: 14065 L: 13854 D: 26097 Ptnml(0-2): 231, 6381, 13581, 6576, 239 Passed LTC: https://tests.stockfishchess.org/tests/view/65c72b91c865510db0287a1a LLR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 55098 W: 13850 L: 13658 D: 27590 Ptnml(0-2): 37, 6257, 14777, 6433, 45 closes official-stockfish#5049 Bench: 1027182
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remove quiet ttMove extensions.
Passed STC:
https://tests.stockfishchess.org/tests/view/65c6934cc865510db0286e90
LLR: 2.99 (-2.94,2.94) <-1.75,0.25>
Total: 54016 W: 14065 L: 13854 D: 26097
Ptnml(0-2): 231, 6381, 13581, 6576, 239
Passed LTC:
https://tests.stockfishchess.org/tests/view/65c72b91c865510db0287a1a
LLR: 2.96 (-2.94,2.94) <-1.75,0.25>
Total: 55098 W: 13850 L: 13658 D: 27590
Ptnml(0-2): 37, 6257, 14777, 6433, 45
Bench 1091284