A blunder but there was  no adequate defense against h5-h6 anyway.
1. g1f3  1... g8f6  2. c2c4  2... c7c5  3. b1c3  3... d7d5  4. c4d5  4... f6d5  5. e2e3 Vachier-Lagrave has a lot of  experience in this Anti-Gruenfeld. 5... d5c3  6. d2c3  6... d8c7  7. e3e4  7... e7e6  8. f1d3 A novelty, which should have been  anticipated by the French GM. 8... f8e7  9. d1e2 Now it is some sort of Alapin Sicilian, where Black  should be careful about the possible kingside attacks as he is missing his knight on f6. 9... c8d7 Intending Bd7-c6 and Nb8-d7. 10. e1g1  10... e8g8 A very careless move. 11. e4e5  11... d7c6 Apparently, the French GM realized what he had done and this  move came after almost 12 minutes of reflection. 12. f3g5 Radjabov catches his chance. 12... h7h6  13. d3h7 An important intermediate check. 13... g8h8  14. h7c2 With the  deadly threat of Qe2-d3! 14... c5c4 The pawn attacks the d3 square, preventing Qd3 for now. 15. f1e1 Overprotecting the e5 pawn to set free the queen for a kingside  assault. 15... c7d8 Black needs to fight the annoying knight. It is too close to his king! 16. g5h3  16... d8d5 Defending the c4 pawn with tempo. 17. h3f4  17... d5c5 It seems that Black finally got some air to complete the  development. Alas... 18. c2b1 The queen is once again ready for the  battery. 18... e7g5  19. f4e6 Wins a pawn. 19... f7e6  20. c1g5  20... c5d5  21. e2g4  21... b8d7 Vachier-Lagrave decided that this gives him more practical  chances. 22. b1e4  22... d7e5  23. g4h5  23... d5b5  24. g5h6  24... c6e4  25. h6f4  25... h8g8  26. h5e5  26... e4d5 Most likely the decision to keep the queens was made due  to the coming timetrouble for White. 27. e1e2  27... f8f5  28. e5e3  28... b5e8  29. f2f3 Radjabov demonstrates textbook  technique. First he kills the enemy bishop... 29... e8g6  30. h2h4 ...and  then he creates a stable construction for his pieces... 30... a8f8  31. f4g5  31... a7a6  32. a1d1 ...and behind the stable construction he  brings his major pieces out. 32... g6e8  33. d1d4  33... e8c6  34. d4g4  34... g8h7  35. g5f4 The bishop gets to the ideal diagonal. 35... f8f7  36. f4e5  36... b7b5  37. e3f2  37... c6d7  38. f2g3 The queen is also there to help the attack. 38... f5h5  39. e5d4  39... d7c7  40. e2e5 Finally one of the defenders is traded and that  releases the h-pawn. This little bit of energy forces the collapse of the  black position. 40... h5f5  41. g4g5  41... h7g8  42. h4h5  42... f5g5  43. g3g5  43... c7e7  44. g5g4 