From: Marco Costalba <mcostalba@gmail.com>
Date: Sun, 22 Mar 2009 12:11:24 +0000 (+0100)
Subject: Fix a small bug in king safety
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=ef8acdc73b7818e97617ba666398be1f9045998e;hp=cc8e915ed5fa95fc9cde500e7aac3c4dfe7d2daa;ds=sidebyside

Fix a small bug in king safety

Merged from iPhone Glaurung.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
---

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index 3e996da8..c29fd5e6 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -782,7 +782,7 @@ namespace {
                         if (    bit_is_set(p.piece_attacks<QUEEN>(from), to)
                             && !bit_is_set(p.pinned_pieces(them), from)
                             && !(rook_attacks_bb(to, occ & ClearMaskBB[from]) & p.rooks_and_queens(us))
-                            && !(rook_attacks_bb(to, occ & ClearMaskBB[from]) & p.rooks_and_queens(us)))
+                            && !(bishop_attacks_bb(to, occ & ClearMaskBB[from]) & p.bishops_and_queens(us)))
 
                             ei.mateThreat[them] = make_move(from, to);
                     }