context: 1. e2e4  1... c7c6  2. d2d4  2... d7d5  3. e4e5  3... c8f5  4. h2h4 This is one of the most interesting and popular options in the Advance Variation of the Caro-Kann. Black really needs to know what to do here. 4... h7h5 This is considered the best move by theory, stopping the dangerous advance of the kingside pawns. 5. f1d3 White reverts to a simpler strategy, exchanging bishops and trying to demonstrate that the inclusion of h4-h5 helps his position, since Black's king remains in danger with such a pawn formation. 5... f5d3  6. d1d3  6... d8a5 This check looks like a beginner's move, but it has the strategic idea of putting the queen on a6. White, naturally, doesn't want to exchange queens. 7. b1d2  7... e7e6  8. g1f3  8... a5a6  9. c2c4 This is why White placed the knight on d2. 9... g8h6  10. e1g1  10... h6f5  11. b2b3  11... b8d7  12. a2a4 After this move White has a comfortable advantage, so Black's previous play needs to be improved. The problem here is the space advantage, the lack of counterplay, and the king being in danger because the white knight has an inviting square on g5. White's last move aims to exchange the bishop with Ba3, since after all the white bishop is limited by the pawn chain. 12... f8b4  13. c1a3  13... a6a5  14. a3b4  14... a5b4  15. a4a5 Pay attention this pawn-it will help to decide the game later on. 15... e8g8  16. f1c1 A new move. 16... f8c8 Black fights for the control of the c-file, as it can become open after a pawn exchange in the center. 17. g2g3  17... b4e7  18. d2f1 An excellent plan to remove the knight on f5, an essential piece for Black's defense. 18... d7f8  19. f1e3  19... f5e3  20. d3e3  20... f7f6 Trying some counterplay, but this move creates weaknesses. 21. e5f6  21... g7f6  22. a5a6 What I find interesting is that Black didn't make a serious mistake and yet he is strategically lost. This shows how dangerous this variation of the Caro-Kann is. 22... b7b6  23. c1c2 White prepares to double on the c-file. 23... c8d8  24. c4d5  24... c6d5  25. a1c1  25... d8d7  26. e3h6  26... e7g7  27. h6h5  27... g7g6 