Again, "Why Did He Play That Move?"

In every chess game we play, we must often ask ourselves about our opponent, "Why Did He Play That Move?" Failing to do so - or failing to answer the question accurately - can lead to disaster.

Consider the following game.

JeanTylerGabriel - LittleDonkey
Giuoco Piano Jerome Gambit Tournament
RedHotPawn.com, 2016

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7 

4...Kxf7 5.Nxe5+ Nxe5 6.d4 Bxd4 7.Qxd4 d6 8.O-O Be6 9.Nc3 Bh3 

Out of a normal (for the Jerome Gambit) opening setup, Black plays an unexpected move. Why did he play that move?

10.Re1

A decent enough response.

10...Qf6

Again, why did he play that move?

11.gxh3

Wrong answer.

11...Nf3+ 12.Kh1 Nxd4 13.Rf1 Qf3+ 14.Kg1 Qxh3 15.Bf4 Nf6 16.Rac1 Nf3+ 17.Kh1 Ng4 18.Rfd1 Nxf2 checkmate

And this is how we reached one of the positions in "Good Knight".