Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bc4/3...Nf6/4. d4/4...exd4/5. O-O/5...Nxe4/6. Nc3/6...dxc3/7. Bxf7/7...Kxf7/8. Qd5/8...Kf6/9. Re1/9...Ne7/10. Qxe4/10...Kf7/11. Bg5/11...d5/12. Qf4

= Nakhmanson Gambit, Kf6 Defence, Rook Attack =

12. Qf4
Black is trying not to get checkmated, so plays 12...Kg8.