Remove SEE optimizations

[stockfish] / src / position.cpp

diff --git a/src/position.cpp b/src/position.cpp
index 388f91f34172806157a7f44573a6177b7a94193d..4a0075cb841845bff231bd8a8091404b16ea7b5e 100644 (file)
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -1338,6 +1338,7 @@ int Position::see(Square from, Square to) const {
 
   Bitboard attackers, stmAttackers, b;
 
+  assert(!shortcut || from != SQ_NONE);
   assert(square_is_ok(from) || from == SQ_NONE);
   assert(square_is_ok(to));
 
@@ -1350,6 +1351,10 @@ int Position::see(Square from, Square to) const {
   Piece capture = piece_on(to);
   Bitboard occ = occupied_squares();
 
+  // King cannot be recaptured
+  if (type_of_piece(piece) == KING)
+      return seeValues[capture];
+
   // Handle en passant moves
   if (st->epSquare == to && type_of_piece_on(from) == PAWN)
   {