Set Play:

1...e5 2.Sxd6, Qd3

Try: 1.Kf2?

But 1...d5!

Try: 1.Qg5?

1...d5 2.Sc5, Qf4

But 1...e5!

1.Qh5!

1...e6 2 Sxd6

1...e5 2.Qf3

1...d5 2.Sc5