7s9r 6s9r7f 5s9r7 4s9r 3s9r7f

i28r7f h28r7 g28r f28r7f e28r7

tb8r7 sb8r rb8r7f qb8r7 pb8r

4k7r 3k7r7f 2k7r7 1k7r 0k7r7f

fu6r7f eu6r7 du6r cu6r7f bu6r7