X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fevaluate.cpp;h=0021c088c0aa0ef88f6076aa43df9554faa3fa16;hp=ac8bde741a385650f9a8155025fbfd99f03c5746;hb=f923dc0fe5ec831c8cb682e1a856122c8964519f;hpb=e846a9306d6108fb24cb216689867777ac2b0c4f;ds=sidebyside

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index ac8bde74..0021c088 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -162,7 +162,7 @@ namespace {
   constexpr Score HinderPassedPawn   = S(  8,  0);
   constexpr Score KingProtector      = S(  6,  6);
   constexpr Score KnightOnQueen      = S( 21, 11);
-  constexpr Score LongDiagonalBishop = S( 22,  0);
+  constexpr Score LongDiagonalBishop = S( 46,  0);
   constexpr Score MinorBehindPawn    = S( 16,  0);
   constexpr Score Overload           = S( 13,  6);
   constexpr Score PawnlessFlank      = S( 19, 84);
@@ -351,7 +351,7 @@ namespace {
                                      * (1 + popcount(blocked & CenterFiles));
 
                 // Bonus for bishop on a long diagonal which can "see" both center squares
-                if (more_than_one(Center & (attacks_bb<BISHOP>(s, pos.pieces(PAWN)) | s)))
+                if (more_than_one(attacks_bb<BISHOP>(s, pos.pieces(PAWN)) & Center))
                     score += LongDiagonalBishop;
             }