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Simplify extensions depth increase condition

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Passed STC:
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 42784 W: 11198 L: 10979 D: 20607
Ptnml(0-2): 166, 5024, 10822, 5185, 195
https://tests.stockfishchess.org/tests/view/6795b6f8f6281b7d7b1869d6

Failed LTC:
LLR: -2.95 (-2.94,2.94) <-1.75,0.25>
Total: 283614 W: 72046 L: 72587 D: 138981
Ptnml(0-2): 241, 32097, 77647, 31606, 216
https://tests.stockfishchess.org/tests/view/6795cbb6f6281b7d7b186a07

Passed VLTC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 59678 W: 15387 L: 15211 D: 29080
Ptnml(0-2): 23, 6169, 17273, 6357, 17
https://tests.stockfishchess.org/tests/view/6795c6dbf6281b7d7b1869f9

closes https://github.com/official-stockfish/Stockfish/pull/5827

Bench: 3088494
This commit is contained in:
Kenneth Lee
2025-01-25 20:14:08 -08:00
committed by Disservin
parent 65a9a391e9
commit 9f0844c101
2 changed files with 2 additions and 1 deletions
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AUTHORS
+1
View File
@@ -125,6 +125,7 @@ jundery
Justin Blanchard (UncombedCoconut) Justin Blanchard (UncombedCoconut)
Kelly Wilson Kelly Wilson
Ken Takusagawa Ken Takusagawa
Kenneth Lee (kennethlee33)
Kian E (KJE-98) Kian E (KJE-98)
kinderchocolate kinderchocolate
Kiran Panditrao (Krgp) Kiran Panditrao (Krgp)
src/search.cpp
+1 -1
View File
@@ -1107,7 +1107,7 @@ moves_loop: // When in check, search starts here
extension = 1 + (value < singularBeta - doubleMargin) extension = 1 + (value < singularBeta - doubleMargin)
+ (value < singularBeta - tripleMargin); + (value < singularBeta - tripleMargin);
depth += ((!PvNode) && (depth < 15)); depth += (depth < 15);
} }
// Multi-cut pruning // Multi-cut pruning