TrappedRook simplification

[stockfish] / src / evaluate.cpp

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index 4ce500af8ea634171a406284b40a9832192acbf2..4ed5e943efe877d006a7c9158ea18db4cef35686 100644 (file)
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -349,7 +349,6 @@ namespace {
                 Square ksq = pos.square<KING>(Us);
 
                 if (   ((file_of(ksq) < FILE_E) == (file_of(s) < file_of(ksq)))
-                    && (rank_of(ksq) == rank_of(s) || relative_rank(Us, ksq) == RANK_1)
                     && !ei.pi->semiopen_side(Us, file_of(ksq), file_of(s) < file_of(ksq)))
                     score -= (TrappedRook - make_score(mob * 22, 0)) * (1 + !pos.can_castle(Us));
             }