X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fevaluate.cpp;h=4a4ae2ad982b430d941dbcaca85af66a0eb0bf12;hb=2bfaf454551ae5a9d99d271d0d87d2a6c829c7e4;hp=0021c088c0aa0ef88f6076aa43df9554faa3fa16;hpb=f923dc0fe5ec831c8cb682e1a856122c8964519f;p=stockfish

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index 0021c088..4a4ae2ad 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -758,12 +758,16 @@ namespace {
     int outflanking =  distance<File>(pos.square<KING>(WHITE), pos.square<KING>(BLACK))
                      - distance<Rank>(pos.square<KING>(WHITE), pos.square<KING>(BLACK));
 
+    bool pawnsOnBothFlanks =   (pos.pieces(PAWN) & QueenSide)		
+                            && (pos.pieces(PAWN) & KingSide);
+
     // Compute the initiative bonus for the attacking side
     int complexity =   8 * pe->pawn_asymmetry()
                     + 12 * pos.count<PAWN>()
                     + 12 * outflanking
+                    + 16 * pawnsOnBothFlanks
                     + 48 * !pos.non_pawn_material()
-                    -110 ;
+                    -118 ;
 
     // Now apply the bonus: note that we find the attacking side by extracting
     // the sign of the endgame value, and that we carefully cap the bonus so