Final version, check bugfix

game.cpp

@@ -439,7 +439,16 @@ int Game::board_heuristic(Board current_board)
 
             int found_attackers = current_board.get_attackers_for_space(x+y*BOARD_SIZE);
 
-            heuristic += adden/((found_attackers!=0)?2:1);
+            if (found_attackers > 0)
+            {
+                adden /= 2;
+            }
+            else if (found_attackers < 0)
+            {
+                adden = 5*adden/4;
+            }
+
+            heuristic += adden;
         }
     }