Loophole

In the 21st puzzle, we created images of the player and the target, and while roughly checking their movements, we discovered a case where the puzzle could be solved even though the puzzle piece placement was not correct. To avoid this, we re-examined the escape algorithm.

The conventional algorithm distinguishes between three cases.

1. This is not the correct procedure, so you can definitely escape. Just run away to a direction where there are no other players.
2. This is the correct procedure and the correct piece placement. Target will eventually be caught, so escape using the same logic as in 1.
3. This is correct procedure but not correct piece placement, use the piece placement ‘Gap’ to escape.

After reviewing, we decided to add the piece placemant ‘Loophole’ to be used in pattern 3 to escape. However, target couldn’t escape completely, so we gave up on that idea.