3.Nc3 … 5...dxc3 6.exf6 Qxf6 7.bxc3: Petrov Defense line

Petrov Defense line, 9 moves deep. You play Black.

1. e4
2. e5
3. Nf3
4. Nf6
5. Nc3
6. Nc6
7. d4
8. exd4
9. e5
10. dxc3
11. exf6
12. Qxf6
13. bxc3
14. Bb4
15. Bd2
16. Bxc3
17. Bxc3
18. Qxc3+