Small cleanups

[stockfish] / src / position.cpp

diff --git a/src/position.cpp b/src/position.cpp
index 37aa2e9edec97b3812f646d4f38da67168e0b4a5..aeac23a33f4c2d631bb3367517d3e20c45911f61 100644 (file)
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -569,8 +569,7 @@ bool Position::pseudo_legal(const Move m) const {
                         : MoveList<NON_EVASIONS>(*this).contains(m);
 
   // Is not a promotion, so promotion piece must be empty
-  if (promotion_type(m) - KNIGHT != NO_PIECE_TYPE)
-      return false;
+  assert(promotion_type(m) - KNIGHT == NO_PIECE_TYPE);
 
   // If the 'from' square is not occupied by a piece belonging to the side to
   // move, the move is obviously not legal.
@@ -766,9 +765,6 @@ void Position::do_move(Move m, StateInfo& newSt, bool givesCheck) {
       // Update board and piece lists
       remove_piece(capsq);
 
-      if (type_of(m) == EN_PASSANT)
-          board[capsq] = NO_PIECE;
-
       // Update material hash key and prefetch access to materialTable
       k ^= Zobrist::psq[captured][capsq];
       st->materialKey ^= Zobrist::psq[captured][pieceCount[captured]];