B2ackn3cr4ny5r to B2ackn3cr4cny5r

ooooooo..o.
...........
.......oooo

B2ack3nr4cny5r to B2ackn3nr4cny5r

.oooooo.o.o.
............
o.....o..o.o

B2ack4cinty6i to B2ackn4cinty6i

oooo.oo.oo.
...........
.........oo