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VLTC search tune

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Search parameters were tuned using 152k games at 180+1.8.

Passed VLTC:
https://tests.stockfishchess.org/tests/view/65a7a81979aa8af82b973a20
LLR: 2.94 (-2.94,2.94) <0.00,2.00>
Total: 117338 W: 29244 L: 28848 D: 59246
Ptnml(0-2): 24, 12474, 33267, 12890, 14

Passed VVLTC:
https://tests.stockfishchess.org/tests/view/65ab246679aa8af82b977982
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 28164 W: 7239 L: 6957 D: 13968
Ptnml(0-2): 3, 2651, 8490, 2937, 1

STC Elo estimate:
https://tests.stockfishchess.org/tests/view/65ac7c0979aa8af82b9792a6
Elo: -0.53 ± 2.0 (95%) LOS: 30.4%
Total: 30000 W: 7688 L: 7734 D: 14578
Ptnml(0-2): 102, 3617, 7614, 3559, 108
nElo: -1.03 ± 3.9 (95%) PairsRatio: 0.99

closes https://github.com/official-stockfish/Stockfish/pull/5003

Bench: 1235377
This commit is contained in:
Muzhen Gaming
2024-01-17 18:10:38 +08:00
committed by Disservin
parent a901474bf9
commit a6fd17f27d
2 changed files with 39 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/search.h
+2 -2
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@@ -205,8 +205,8 @@ class Worker {
Depth reduction(bool i, Depth d, int mn, int delta) {
int reductionScale = reductions[d] * reductions[mn];
return (reductionScale + 1346 - int(delta) * 896 / int(rootDelta)) / 1024
+ (!i && reductionScale > 880);
return (reductionScale + 1177 - int(delta) * 776 / int(rootDelta)) / 1024
+ (!i && reductionScale > 842);
}
// Get a pointer to the search manager, only allowed to be called by the