- if (is_ok((ss - 2)->currentMove) && is_ok((ss - 1)->currentMove) && !pos.captured_piece_type() && !inCheck && depth>=3*ONE_PLY)
- {
- Value bonus = Value((depth / ONE_PLY) * (depth / ONE_PLY));
- Square prevSq = to_sq((ss - 1)->currentMove);
- Square prevPrevSq = to_sq((ss - 2)->currentMove);
- HistoryStats& flMoveCmh = CounterMovesHistory[pos.piece_on(prevPrevSq)][prevPrevSq];
- flMoveCmh.updateCMH(pos.piece_on(prevSq), prevSq, bonus);
- }
+ Value bonus = Value((depth / ONE_PLY) * (depth / ONE_PLY));
+ Square prevPrevSq = to_sq((ss - 2)->currentMove);
+ CounterMovesStats& prevCmh = CounterMovesHistory[pos.piece_on(prevPrevSq)][prevPrevSq];
+ prevCmh.update(pos.piece_on(prevSq), prevSq, bonus);