1.Se8+? (1.Sh5+?)          1…Kh6!  2.Qf4+ Kh5  3.Qh4#              2…Kh7 !

                                         1…Kh7  2.Qf7+ Kh6, Bg7  3.Qg6, Q:g7#   

                                         1…Kg8 2.Qf7#

1.Sg4 ?    1…Kh7 !

1.Sg8 ? threat 2.Qf7#       1…Kh7!  2.Qf7+  Bg7!      1…K:g8  2.Qf7# (model mate)

1.Se4 ?  (1.Sh7?) threat 2.Qf7+ Kh6  3.Sg4# (model mate)     1…Kh6,Kh7!

1.Sd5 ? threat  e:d5 2.Qf7+ Kg8, Kh7 3.Qf7, Qg6# (model mate)  1…Kh6,Kh7!

1.Qf4? 1.Kh2? 1.Kh3?    1…Kf8 !

1.Qf2?  1…Kf8 2.Qa7!    1…Kh6 !

1.Qb1? 1.Qc1? 1.Qd1? 1.Qg1? 1.Qh1? 1.Qd3? 1.Qc4? 1.Qg2?     1…K:f6 !

1.Qf3 ! zugzwang    1…Kf8  2.Qb7 B:f6  3.Qf7#  (model mate)

                                1…Kh6  2.Qg4 B:f6  3.Qg6# (model mate)  Author