1. d2d4  1... g8f6  2. g1f3  2... d7d5  3. c1f4 The London system is a fearsome weapon in the  hands of the Vietnamise GM. 3... e7e6  4. e2e3  4... f8d6  5. b1d2  5... c7c5 And Caruana  cannot complain of practice in the line as well. In this game he decided  to choose something more complex. 6. c2c3  6... e8g8  7. f4g3  7... b7b6 The same idea to swap off his problematic bishop,  borrowed by the French defense. 8. f1d3  8... c8a6  9. d3a6  9... b8a6  10. d1e2  10... a6b8 The  knight has done it's job and is now moving towards the optimal square.  10...Nb8 scores better than 10...Nc7 and which should not be surpsing as  it is left far away from the central squares. 11. f3e5  11... d8c7  12. e1g1  12... b8c6  13. f2f4 The pawn skeleton has been changed into a reversed Stonewall, where  Le is happy with the aggressive position of his bishop, whereas Caruana  managed to completely get rid of his weak one. 13... c6e7  14. g3h4 [#] 14... f6d7 A natural novelty. This knight has a bright future. 15. a1d1  15... c5d4  16. e3d4 Now tha pawn structure has once more transformed,  this time into a Carlsbad. The plans of the sides are clear- White wants  to mate the opponent on the kingside, whereas Black is looking for a  minority attack on the opposite wing. 16... e7f5 Therefore Caruana  first tames the opponent's initiative on the kingside. 17. h4f2  17... d6e7 An important move that opens the road for the black knight. 18. e5d3  18... d7f6  19. d1e1  19... a8e8 Another important move, which overprotects  the e7 bishop, as well as the central pawn. Apparently Caruana wanted to  provoke g2-g4. 20. g2g4  20... f5d6 A black knight will be established in the center and once that the e-file is blocked Caruana may even start playing in the center  himself. 21. f2g3  21... f6e4  22. g1g2  22... e4d2  23. e2d2  23... d6e4 A super-knight was born. 24. d2d1  24... e7d6  Preventing Nd3-f2 for the time being. 25. g4g5 Le is trying to prevent  f7-f5. 25... f7f5 If the knight is supported once again, White's position will  become strategically hopeless. 26. g5f6  26... f8f6  27. d3f2 The sacrifice of  the pawn seems the lesser evil to White. 27... e4f2  28. f1f2  28... d6f4  29. f2f4  29... f6f4  30. d1e2  30... c7f7  31. g3f4  31... f7f4  32. e1f1  32... f4d6 Caruana won a pawn and converts the advantage in impeccable way. 33. e2h5  33... d6e7 First Black consolidates and stops all tactical ideas of his  opponent. 34. h5e5  34... b6b5 It is important to move the pawns away from  their starting positions. 35. f1f3  35... a7a6  36. a2a3  36... h7h6  37. h2h3  37... e8f8  38. f3e3  38... g8h8 The best move again. 39. e5e6  39... e7g5 Now a forcing sequence follows. 40. e3g3  40... g5d2  41. g2h1  41... f8f1  42. g3g1  42... f1g1  43. h1g1  43... d2c1  44. g1g2  44... c1b2  45. g2g1  45... b2c1 Checking if the  opponent will go wrong, always a good strategy in the rapid and blitz  time-controls! 46. g1f2  46... c1d2  47. f2f1 And Le blunder, stepping with the  king on a poor square. 47... d2c3  48. e6d5  48... c3c4 That is it, the pawns are unstoppable. 49. d5c4  49... b5c4  50. f1e2  50... g7g5 