1.Q:c4 ? threat: 2.ed # (A)

1...Q:g3 (a) (Q:e2) 2.d5 # (B)

but 1...dc !

1.d5 ! (B) threat: 2.Qe6 #

1...Q:g3 (a) (Qf4, Qd4) 2.ed # (A)

1...R:d5 2.Q:d5 #

1...Bg8 (Bf5) 2.Qf5 #

Erokhin (AaB-BaA)