board 16 16
B N N N N B N N N N B N N N N N
W C C C C C C C C C C C N W C C
W C C C C C C W C C W C C C C C
B C C C C C N C C B C C C C C C
W C N W C C C C C C C C C C C C
W C C N C C C C C C C C C C C C
W C C C C B C C C C C W C C C N
W C C C C C C B B W C N C C C C
W C C C C C C B B W B C C C C C
W C W C C C C N N C C C C C C N
W C N W C C C C C C C C C C B C
W C C C C C C B C C C C C C C C
W C C C C C C C C C C C N W C C
B C C C C C C C C C W C C N C C
W C C C C C W C C N C C C C C C
W C C C C N C W C C C W C C C C
mirrors 8
4 1 \ 4
6 3 \ 3
14 4 \ 2
8 5 / 3
4 8 / 1
12 9 \ 2
1 13 \ 4
13 14 \ 1
robots 5
15 8
4 0
3 15
14 15
0 2
target 0 5 6 3