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Simplify pruning

Browse source 
STC: http://tests.stockfishchess.org/tests/view/5842be140ebc5903140c5619
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 16014 W: 2839 L: 2710 D: 10465

LTC: http://tests.stockfishchess.org/tests/view/584316a50ebc5903140c5638
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 182360 W: 22830 L: 22914 D: 136616

Retested at LTC
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 45502 W: 5821 L: 5732 D: 33949

Bench: 4684146
This commit is contained in:
Stefan Geschwentner 2016-12-12 12:01:16 +01:00 • committed by Marco Costalba
parent 1b62d413c1
commit 847bc0e80f
1 changed files with 1 additions and 5 deletions
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6
src/search.cpp
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@ -936,11 +936,7 @@ moves_loop: // When in check search starts from here
}
else if (depth < 7 * ONE_PLY && !extension)
{
Value v = -Value(399 + 35 * depth / ONE_PLY * depth / ONE_PLY);
if (PvNode)
v += beta - alpha - 1;
Value v = -Value(400 - 100 * PvNode + 35 * depth / ONE_PLY * depth / ONE_PLY);
if (!pos.see_ge(move, v))
continue;
}