remove pawnsonbothflanks. +6

protonspring · May 15, 2019 · eda5f0e · eda5f0e
1 parent 3a572ff
commit eda5f0e
Showing 1 changed file with 1 addition and 5 deletions.
diff --git a/src/evaluate.cpp b/src/evaluate.cpp
@@ -739,16 +739,12 @@ 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 =   9 * pe->passed_count()
                     + 11 * pos.count<PAWN>()
                     +  9 * outflanking
-                    + 18 * pawnsOnBothFlanks
                     + 49 * !pos.non_pawn_material()
-                    -103 ;
+                     -97 ;
 
     // 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