Order bad captures by SEE value

[stockfish] / src / movegen.cpp

diff --git a/src/movegen.cpp b/src/movegen.cpp
index 4f1d14dee0ed4814db3aac1a5f124aac115dee28..995f54f06c97b1f352b4cbb2ecfa8f2831070b9d 100644 (file)
--- a/src/movegen.cpp
+++ b/src/movegen.cpp
@@ -334,7 +334,7 @@ int generate_evasions(const Position& pos, MoveStack* mlist, Bitboard pinned) {
           // The checking pawn cannot be a discovered (bishop) check candidate
           // otherwise we were in check also before last double push move.
           assert(!bit_is_set(pos.discovered_check_candidates(them), checksq));
-          assert(count_1s<false>(b1) == 1 || count_1s<false>(b1) == 2);
+          assert(count_1s(b1) == 1 || count_1s(b1) == 2);
 
           b1 &= ~pinned;
           while (b1)
@@ -393,7 +393,6 @@ bool move_is_legal(const Position& pos, const Move m, Bitboard pinned) {
   assert(pinned == pos.pinned_pieces(pos.side_to_move()));
 
   Color us = pos.side_to_move();
-  Color them = opposite_color(us);
   Square from = move_from(m);
   Piece pc = pos.piece_on(from);
 
@@ -402,6 +401,7 @@ bool move_is_legal(const Position& pos, const Move m, Bitboard pinned) {
   if (color_of_piece(pc) != us)
       return false;
 
+  Color them = opposite_color(us);
   Square to = move_to(m);
 
   // En passant moves