X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fposition.cpp;h=994e1c767ccfc05cce8e41c4bf35bab967a4c484;hp=d1f31146082b23801cb2d8d62f093c49cafe777e;hb=c73f33f37e56048f4e137dd5e5118367eb072a05;hpb=aea2fde6117be2fbda1caa62c842dea766780be5 diff --git a/src/position.cpp b/src/position.cpp index d1f31146..994e1c76 100644 --- a/src/position.cpp +++ b/src/position.cpp @@ -1,7 +1,7 @@ /* Stockfish, a UCI chess playing engine derived from Glaurung 2.1 Copyright (C) 2004-2008 Tord Romstad (Glaurung author) - Copyright (C) 2008-2014 Marco Costalba, Joona Kiiski, Tord Romstad + Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad Stockfish is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -641,7 +641,7 @@ bool Position::gives_check(Move m, const CheckInfo& ci) const { return true; // Is there a discovered check? - if ( unlikely(ci.dcCandidates) + if ( ci.dcCandidates && (ci.dcCandidates & from) && !aligned(from, to, ci.ksq)) return true; @@ -870,7 +870,7 @@ void Position::do_move(Move m, StateInfo& newSt, const CheckInfo& ci, bool moveI st->checkersBB |= to; // Discovered checks - if (unlikely(ci.dcCandidates) && (ci.dcCandidates & from)) + if (ci.dcCandidates && (ci.dcCandidates & from)) { if (pt != ROOK) st->checkersBB |= attacks_from(king_square(them)) & pieces(us, QUEEN, ROOK);