1...Kh6-g6 2.Kh8-g8 Kg6-f6 3.h7-h8=Q + Kf6-e7
4.Qh8-d4 Ke7-e8 5.Qd4-d7 #
2...Kg6-h6 3.h7-h8=Q + Kh6-g6 4.Qh8-g7 #
(3.h7-h8=S? – model stalemate)

1.Kh8-g8 ! (threat: 2.h7-h8=Q + Kh6-g6 3.Qh8-g7 #

2.h8S? – model stalemate)
1...Kh6-g6 2.h7-h8=B Kg6-h6 3.Bh8-g7 + Kh6-g6

4.Kg8-f8 Kg6-h7 5.Bg4-f5 #

2.h8R? ~ 3.Rh3! (etc.) Kf6 4.Re3! ~ 5.Re6# - model mate

But 2…Kf6!