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Better self-document LMR reduction() formula

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Suggested by Onno

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
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Marco Costalba
2011-04-15 17:41:45 +02:00
parent 786564068b
commit a860576493
1 changed files with 1 additions and 1 deletions
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src/search.cpp
+1 -1
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@@ -216,7 +216,7 @@ namespace {
int8_t ReductionMatrix[2][64][64]; // [pv][depth][moveNumber]
template <NodeType PV>
inline Depth reduction(Depth d, int mn) { return (Depth) ReductionMatrix[PV][Min(d / 2, 63)][Min(mn, 63)]; }
inline Depth reduction(Depth d, int mn) { return (Depth) ReductionMatrix[PV][Min(d / ONE_PLY, 63)][Min(mn, 63)]; }
// Easy move margin. An easy move candidate must be at least this much
// better than the second best move.