board 16 16 B B N N N N N N N N N N N N N N W C C C C C C C C C C C N N B C W C C C C C C C C C C C C C W C W C C C C C C C C C C C C C W N W C C C C C C C C C C C C C W C W C C C C C C C C C C C C C B C W C C C C C C C C C C C C C W C W C C C C C C C C C C C C C W N W C C C C C C C C C C C C C W C W C C C C C C C C C C C C C N C W C C C C C C C C C C C C C C C W C C C C C C C C C C C C C C C W C C C C C C C C C C C C C C C W C C C C C C C C C C C C C C C W C C C C C C C C C C C C C C C W C C C C C C C C C C C C C C C mirrors 25 15 2 / 2 14 2 / 3 14 4 \ 4 15 4 \ 2 15 6 / 3 14 6 / 4 14 8 \ 1 15 8 \ 1 15 9 \ 0 15 10 \ 0 15 11 / 0 15 12 \ 0 15 13 / 0 15 14 \ 0 15 15 / 1 14 15 / 0 13 15 \ 0 12 15 / 0 11 15 \ 0 10 15 / 0 9 15 \ 0 8 15 / 0 7 15 \ 0 6 15 / 0 5 15 \ 0 robots 5 13 0 0 0 0 1 0 2 0 3 target 0 0 15 0 solution 2 move 0 15 0 move 0 0 15