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 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 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 B N n w 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 C N C C C C C C C C C C C C C mirrors 3 15 15 / 1 15 12 \ 1 12 12 / 1 robots 5 12 15 0 0 0 1 0 2 0 3 target 0 2 14 0 solution 4 move 0 0 15 move 0 0 13 move 0 2 13 move 0 2 14