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Removed extra condition (history < 0) in LMR to help sync up with move ordering.

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LMR condition is now cmh+history<0
Instead of history<0 OR cmh+history<0

STC:
LLR: 2.96 (-2.94,2.94) [-3.00, 1.00]
Total: 26446 W: 5092 L: 4980 D: 16374

LTC:
LLR: 2.96 (-2.94,2.94) [-3.00, 1.00]
Total: 14129 W: 2340 L: 2209 D: 9580

Bench: 7815183

Resolves #331
This commit is contained in:
VoyagerOne 2015-04-10 17:50:19 -04:00 • committed by Joona Kiiski
parent fb03188fc7
commit 20e92895af
1 changed files with 0 additions and 1 deletions
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src/search.cpp
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@ -960,7 +960,6 @@ moves_loop: // When in check and at SpNode search starts from here
ss->reduction = reduction<PvNode>(improving, depth, moveCount);
if ( (!PvNode && cutNode)
|| History[pos.piece_on(to_sq(move))][to_sq(move)] < VALUE_ZERO
|| ( History[pos.piece_on(to_sq(move))][to_sq(move)]
+ CounterMovesHistory[pos.piece_on(prevMoveSq)][prevMoveSq]
[pos.piece_on(to_sq(move))][to_sq(move)] < VALUE_ZERO))