X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fmovegen.cpp;h=e017d8fe2c596c4fd2cee565fce2bfec972c9f54;hb=c4d67d77c99b99c9ac387ab622773a320f8d5cc3;hp=3340f65cf10479113d7228d2fbe461dde3e282f4;hpb=5f1843c9cb55afcd3fb1da9e9dc4b0092f25d9f0;p=stockfish

diff --git a/src/movegen.cpp b/src/movegen.cpp
index 3340f65c..e017d8fe 100644
--- a/src/movegen.cpp
+++ b/src/movegen.cpp
@@ -1,6 +1,6 @@
 /*
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
-  Copyright (C) 2004-2020 The Stockfish developers (see AUTHORS file)
+  Copyright (C) 2004-2021 The Stockfish developers (see AUTHORS file)
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -180,10 +180,11 @@ namespace {
 
     static_assert(Pt != KING && Pt != PAWN, "Unsupported piece type in generate_moves()");
 
-    const Square* pl = pos.squares<Pt>(Us);
+    Bitboard bb = pos.pieces(Us, Pt);
+
+    while (bb) {
+        Square from = pop_lsb(&bb);
 
-    for (Square from = *pl; from != SQ_NONE; from = *++pl)
-    {
         if (Checks)
         {
             if (    (Pt == BISHOP || Pt == ROOK || Pt == QUEEN)