if ( !PvNode
&& depth < 4 * ONE_PLY
&& eval + razor_margin(depth) <= alpha
- && ttMove == MOVE_NONE
- && !pos.pawn_on_7th(pos.side_to_move()))
+ && ttMove == MOVE_NONE)
{
if ( depth <= ONE_PLY
&& eval + razor_margin(3 * ONE_PLY) <= alpha)
}
// Extra penalty for TT move in previous ply when it gets refuted
- if (is_ok((ss-2)->currentMove) && (ss-1)->currentMove == (ss-1)->ttMove)
+ if (is_ok((ss-2)->currentMove) && (ss-1)->currentMove == (ss-1)->ttMove && !pos.captured_piece_type())
{
Square prevPrevSq = to_sq((ss-2)->currentMove);
HistoryStats& ttMoveCmh = CounterMovesHistory[pos.piece_on(prevPrevSq)][prevPrevSq];