X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fevaluate.cpp;h=854ab42a1c3c132899e54dddd315653f2e60d11f;hp=fe4eef57493c8ed3a601120dc7fee3233e7a1b5d;hb=e7505324f618ba1d558ffa3c882ed208ad01bed1;hpb=7f4c7cd785fed40b4c778c1b21f1cc99621bab32

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index fe4eef57..854ab42a 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -677,8 +677,7 @@ Value do_evaluate(const Position& pos, Value& margin) {
     Score score = SCORE_ZERO;
 
     // Undefended minors get penalized even if not under attack
-    undefendedMinors =  pos.pieces(Them)
-                      & (pos.pieces(BISHOP) | pos.pieces(KNIGHT))
+    undefendedMinors =  pos.pieces(Them, BISHOP, KNIGHT)
                       & ~ei.attackedBy[Them][ALL_PIECES];
 
     if (undefendedMinors)