Mainline Caro: Caro-Kann Defense line

Engine-verified opening line.

1. e4
2. c6
3. d4
4. d5
5. exd5
6. cxd5
7. Bd3
8. Nc6
9. c3
10. Nf6
11. Bf4
12. Bg4
13. Qb3
14. Qd7
15. Nd2
16. e6
17. Ngf3
18. Bd6
19. Bxd6
20. Qxd6
21. O-O
22. O-O