X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fevaluate.cpp;h=94ec2b6c04162f8ba7c3e9e08395f4942993c88b;hp=c2f025fccd87047034fea47ad8d8984b27b1b2ad;hb=02606a8c8360782c5c14e6a76fd7867f2cb9552d;hpb=653c0527a70c3a134983519a1cf13ffbde120205

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index c2f025fc..94ec2b6c 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)