1...Sa4 2.Sb5 threat: 3.Sc7# 2...d3 3.e4# 

1...Sd7 2.Kxd7 f5 3.Qe6# 2...d3 3.Qe4# 

1...Sd3 2.Se4 threat: 3.Sxf6# 

 

1.Kf7? Zzw  1...f5 2.Sdc4 Sd7 3.Qe6# 2...d3 3.Qe5# 

1...Sc5~ 2.Qe6# 

but: 1...d3! 

 

1.Sb5? threat: 2.Sc7#  1...d3 2.Sc3+ Kd4 3.Qxc5# 

1...Sa6 2.Kf7 threat: 3.Qe6# 2...Sxb4 3.Sc7#   

but: 1...Se6! 

 

1.Sac4! threat: 2.Qf7+ Kc6 3.b5# 2...Se6 3.Qb7# 

1...Kc6 2.b5+ Kd5 3.Sb6# 

1...d3 2.e4+ Kc6 3.b5# 2...Sxe4 3.Qxe4# 2...Kd4 3.Qxf6# 

 

Changed mates, Radical change