Vachier-Lagrave needs to swap the bishop pair of the opponent for sure. However after:
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 