+ Value get(Color c, Move m) const { return table[c][from_sq(m)][to_sq(m)]; }
+ void clear() { std::memset(table, 0, sizeof(table)); }
+
+ void update(Color c, Move m, Value v)
+ {
+ if (abs(int(v)) >= 324)
+ return;
+
+ Square f = from_sq(m);
+ Square t = to_sq(m);
+
+ table[c][f][t] -= table[c][f][t] * abs(int(v)) / 324;
+ table[c][f][t] += int(v) * 32;
+ }
+
+private:
+ Value table[COLOR_NB][SQUARE_NB][SQUARE_NB];
+};