Ticket #209: gunnar_7_13.10.diff

engine/optics.c

@@ -784 +784 @@
   signed char chainlinks[BOARDMAX];
   int contains_inset = 0;
 
-  /* Stones inside eyespace which do not coincide with a false eye or
-   * a halfeye.
-   */
-  int interior_stones = 0;
-
   memset(chainlinks, 0, BOARDMAX);
 
   for (pos2 = BOARDMIN; pos2 < BOARDMAX; pos2++) {
@@ -804 +799 @@
       if (is_halfeye(heye, pos2))
         halfeyes++;
     }
-    else if (IS_STONE(board[pos2]))
-      interior_stones++;
 
     bulk_score += bulk_coefficients[(int) eye[pos2].neighbors];
 
@@ -911 +904 @@
     DEBUG(DEBUG_EYES, "  pessimistic min revised to 0\n");
   }
 
-  /* An eyespace with at least two interior stones is assumed to be
-   * worth at least one eye, regardless of previous considerations.
-   */
-  if (*pessimistic_min < 1 && interior_stones >= 2) {
-    *pessimistic_min = 1;
-    DEBUG(DEBUG_EYES, "  pessimistic min revised to 1 (interior stones)\n");
-  }
-
   if (contains_inset) {
     *pessimistic_min = 0;
     DEBUG(DEBUG_EYES, "  pessimistic min revised to 0 (contains inset)\n");