ext/board.c in chess-0.0.3 vs ext/board.c in chess-0.0.4

@@ -406,13 +406,10 @@
   new_board->placement[from] = 0;
   // Promotion check
   if (require_a_promotion (new_board))
     {
       if (!promote (new_board, to, promote_in))
-        {
-          free (new_board);
-          return 0;
-        }
+        return FALSE;
     }
   else
     promote_in = 0;
   // Set occupied pieces in new board
   set_occupied (new_board);
\ No newline at end of file