11. Nf6+
11... Kd8
Premove Kxe7
12. Qxe7 Kxe7
13. Nxg8+
Premove Nxi7
13... Rxg8
14. Bf3
14... Ne4
15. 0-0-0
15... Nxf2
Don't ask me why I thought the king went two squares. I couldn't tell you.
16. Re1+
16... Kd6
17. Re5
17... c6
18. Rxf5
18... Gc7
19. h3
19... Ne4
20. Gh2
20... Nh6
11. Nf6+