Free Hero Mesh

      if(replay_mark>replay_pos) replay_mark--;
      return 0;
    case '^+': // Insert moves
      if(solution_replay) return 0;
      inputs_count=0;
      inserting^=1;
      return 0;
    case '^?': // Debug information
      printf("timerflag=%d  exam_scroll=%d  inputs_size=%d  inputs_count=%d\n",timerflag,exam_scroll,(int)inputs_size,inputs_count);
      printf("side_mode=%d  replay_speed=%d  replay_time=%d  solved=%d\n",side_mode,replay_speed,replay_time,solved);
      printf("should_record_solution=%d  should_record_private_solution=%d\n",should_record_solution,should_record_private_solution);
      printf("autowin=%p  inserting=%d  saved_inserting=%d  solution_replay=%d\n",autowin,inserting,saved_inserting,solution_replay);
      printf("replay_size=%d  replay_count=%d  replay_pos=%d  replay_mark=%d\n",(int)replay_size,replay_count,replay_pos,replay_mark);
      printf("best_list=%p  strlen(best_list)=%d  best_score=%d\n",best_list,(int)strlen(best_list?:""),best_score);
      return -3;
    case '^D': // Delete all moves forward
      inputs_count=0;
      if(solution_replay) {
        screen_message("You cannot delete moves during the solution replay");
        return -3;
      }
      if(replay_pos==replay_count) return 0;