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simplify logic for history based pruning

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STC
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 34255 W: 6292 L: 6194 D: 21769

LTC
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 89914 W: 11769 L: 11739 D: 66406

Bench: 6581936

Closes #1066
This commit is contained in:
Joost VandeVondele
2017-04-20 11:22:24 -07:00
committed by Joona Kiiski
parent 2d96e8fbe9
commit ced29248c9
2 changed files with 8 additions and 7 deletions
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src/movepick.h
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@@ -66,6 +66,7 @@ struct Stats {
const T* operator[](Piece pc) const { return table[pc]; }
T* operator[](Piece pc) { return table[pc]; }
void clear() { std::memset(table, 0, sizeof(table)); }
void fill(const Value& v) { std::fill(&table[0][0], &table[PIECE_NB-1][SQUARE_NB-1]+1, v); };
void update(Piece pc, Square to, Move m) { table[pc][to] = m; }
void update(Piece pc, Square to, Value v) {