1. g1f3  1... g8f6  2. c2c4  2... e7e6  3. d2d4  3... d7d5  4. b1c3  4... f8b4  5. c4d5  5... e6d5  6. c1f4 A relatively rare choice for the first player. 6... f6e4  7. a1c1  7... c7c6  8. e2e3  8... b8d7  9. f1d3  9... d7f6 All of this seems very logical and now a strange version of the Carlsbad arose. It seems favorable for White, as it is not easy to challenge the white dark-squared bishop which is a common theme in the usual Carlsbad. 10. e1g1  10... c8g4 Another obvious move, and as Radjabov will soon prove—an empty threat. 11. d1c2 That is the point. White does not mind doubling his pawns, his center will be too strong. 11... g4f3  12. g2f3  12... e4c3  13. b2c3  13... b4d6 Vachier-Lagrave needs to swap the bishop pair of the opponent for sure. However after: 14. f4g3 Black will have to pay a price for this trade. 14... f6h5 Vachier-Lagrave decided to pay the price with a couple of tempi. In the process he slows down the motion of the white center. 15. c3c4 However, the center can be attacked from this side too. 15... d5c4  16. c2c4  16... h5g3  17. h2g3 As a result, a position with opposite-colored bishop appeared on the board. White's bishop is certainly the stronger one, and this is the major factor of the position. The strong center also helps Radjabov build a lasting attack. 17... e8g8  18. g1g2 There is no rush in these situations. Just bring the pieces to the right positions and attack the squares which the opponent cannot defend with his own bishop. 18... g7g6  19. f1h1  19... g8g7  20. d4d5 Both the fourth rank and the long diagonal are now opened for the white pieces. 20... c6c5 The best defence. 21. c4c3  21... f7f6  22. f3f4  22... d8e7  23. a2a4 Fixing some more weaknesses. Radjabov's play is model. 23... a8c8  24. c3c4 Fixing the pawn, thus the bishop too. 24... f6f5 Or else White might have pushed his pawn to f5 himself. 25. c1b1  25... c8c7  26. e3e4 It is time to break open more files and reach the enemy king. 26... f5e4  27. h1e1  27... e7f6  28. e1e4  28... c7e7  29. e4e6 Adding a strong passer to his assets. 29... e7e6 