Hello @harris2017...
13.....14.....13.....9.....5........1.......2......6.......10.....11.....15......16........12......8........7.......3........4
They can enter 13 twice because there is no prisoner there
Hello @harris2017...
13.....14.....13.....9.....5........1.......2......6.......10.....11.....15......16........12......8........7.......3........4
They can enter 13 twice because there is no prisoner there
You must not apper twins in one cell