1.Qf3? N:f3

1.Bc4? ~ 2.d4#

1…Nd3 2.Qf3 Nc1+ 3.Kd1

   2…Nf4+ 3.ef

1…e5! 2.d4 ed 3.ed#??

1.Be4? fe 2.d4 ed+!

1.Qg4!! ~ 2.Qc4(d4)#

1…fg 2.Be4! Q:e4 3. d4+! Q:d4 4.ed# (3…ed??)