template<typename T>
struct Stats {
- static const Value Max = Value(250);
+ static const Value Max = Value(1<<28);
const T* operator[](Piece pc) const { return table[pc]; }
T* operator[](Piece pc) { return table[pc]; }
table[pc][to] = m;
}
- void update(Piece pc, Square to, Value v) {
+ void updateH(Piece pc, Square to, Value v) {
- if (abs(table[pc][to] + v) < Max)
- table[pc][to] += v;
+ if (abs(int(v)) >= 324)
+ return;
+ table[pc][to] -= table[pc][to] * abs(int(v)) / 324;
+ table[pc][to] += int(v) * 32;
+ }
+
+ void updateCMH(Piece pc, Square to, Value v) {
+
+ if (abs(int(v)) >= 324)
+ return;
+ table[pc][to] -= table[pc][to] * abs(int(v)) / 512;
+ table[pc][to] += int(v) * 64;
}
private:
MovePicker(const Position&, Move, const HistoryStats&, const CounterMovesHistoryStats&, Value);
MovePicker(const Position&, Move, Depth, const HistoryStats&, const CounterMovesHistoryStats&, Move, Search::Stack*);
- template<bool SpNode> Move next_move();
+ Move next_move();
private:
template<GenType> void score();