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ProbCutCount limit dependancy to cutNode

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Use the ProbCutCount limit `2 + 2 * cutNode` instead of constant 3.

STC
LLR: -2.95 (-2.94,2.94) [0.50,4.50]
Total: 61812 W: 13599 L: 13459 D: 34754
http://tests.stockfishchess.org/tests/view/5c6d19240ebc5925cffca07a

LTC
LLR: 2.96 (-2.94,2.94) [0.00,3.50]
Total: 27549 W: 4614 L: 4363 D: 18572
http://tests.stockfishchess.org/tests/view/5c6d45c10ebc5925cffca7a6

Closes https://github.com/official-stockfish/Stockfish/pull/2015

Bench: 3368889
This commit is contained in:
MJZ1977
2019-02-19 17:48:03 +01:00
committed by Stéphane Nicolet
parent 22ef36803e
commit e51244cb27
1 changed files with 1 additions and 1 deletions
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src/search.cpp
+1 -1
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@@ -830,7 +830,7 @@ namespace {
int probCutCount = 0; int probCutCount = 0;
while ( (move = mp.next_move()) != MOVE_NONE while ( (move = mp.next_move()) != MOVE_NONE
&& probCutCount < 3) && probCutCount < 2 + 2 * cutNode)
if (move != excludedMove && pos.legal(move)) if (move != excludedMove && pos.legal(move))
{ {
probCutCount++; probCutCount++;