A common question is “Why has my score changed so much?”.

If you played the robots in one round, then those results will be deleted. If you did well against the robots, then you expect your score to get a little worse; conversely, if you did poorly then your score will improve.

However, deleting the robot results on all the other boards will also cause your score to change, depending on whether you did better or worse than the robots on each board. This is why your score will change even if you do not play the robots.

Although the changes on individual boards will normally be relatively small, the cumulative effect can still make a significant difference.