1.Ra6? Ra8!  1.Rc6? Rc8!

1.Rd6? Rd8!  1.Re6? Re8!

1.Rf6? Rf8!   1.Rg6? Rg8!

1.Rh6!! Rh8 2.Bh7!! ~ 3.Rh1#

  2…R:h7 3.R:h7 Kb1 4.Rh1#