- enum MovegenPhase {
- PH_TT_MOVE, // Transposition table move
- PH_MATE_KILLER, // Mate killer from the current ply
- PH_GOOD_CAPTURES, // Queen promotions and captures with SEE values >= 0
- PH_BAD_CAPTURES, // Queen promotions and captures with SEE valuse <= 0
- PH_KILLER_1, // Killer move 1 from the current ply (not used yet).
- PH_KILLER_2, // Killer move 2 from the current ply (not used yet).
- PH_NONCAPTURES, // Non-captures and underpromotions
- PH_EVASIONS, // Check evasions
- PH_QCAPTURES, // Captures in quiescence search
- PH_QCHECKS, // Checks in quiescence search
- PH_STOP
- };
-
- MovePicker(Position &p, bool pvnode, Move ttm, Move mk, Move k1, Move k2,
- Depth dpth);
- Move get_next_move();
- Move get_next_move(Lock &lock);
- int number_of_moves() const;
- int current_move_score() const;
- MovegenPhase current_move_type() const;
- Bitboard discovered_check_candidates() const;
-
- static void init_phase_table();
+ if (m == table[p][to].first)
+ return;
+
+ table[p][to].second = table[p][to].first;
+ table[p][to].first = m;
+ }
+
+ void update(Piece p, Square to, Value v) {
+
+ if (Gain)
+ table[p][to] = std::max(v, table[p][to] - 1);
+
+ else if (abs(table[p][to] + v) < Max)
+ table[p][to] += v;
+ }