1. e2e4  1... c7c5  2. g1f3  2... d7d6  3. d2d4  3... c5d4  4. f3d4  4... g8f6  5. b1c3  5... a7a6  6. f2f3 Vachier-Lagrave is faithful to his Najdorf Defense and Caruana to his English Attack. A theoretical battle appears on the board. 6... e7e5  7. d4b3  7... c8e6  8. c1e3  8... f8e7  9. d1d2  9... e8g8  10. e1c1  10... b8d7  11. g2g4  11... b7b5  12. g4g5  12... f6h5  13. c1b1  13... d7b6  14. b3a5  14... a8c8  15. c3d5  15... b6d5  16. e4d5  16... e6d5  17. d2d5  17... d8a5  18. c2c4  18... h5f4  19. e3f4  19... e5f4 All this is still well-known theory. 20. h2h4  20... a5a4  21. d1c1  21... c8c5 A novelty in my human database, but there are still computer games with this move. The Najdorf theory can go very far. 22. d5e4 From now on, I suspect Vachier-Lagrave's preparation ended, or maybe he forgot his analysis. 22... c5e5  23. e4f4  23... f7f6 Black wants to activate his bishop, but this move creates weaknesses around the king and loses. 23...Rb8 or 23... Qb4 are better alternatives, although Black's position is already difficult. 24. f4h2 Caruana thought for a long time to play this move. It still gives White a big advantage, but 24.Qd2 is even better. 24... e5c5  25. h2e2  25... c5e5  26. e2h2  26... e5c5  27. h2d2 This is also very effective with the rook on c5. 27... b5c4  28. f1c4  28... g8h8  29. d2e2  29... c5e5  30. e2d3  30... d6d5  31. f3f4 A human move, but not the most accurate, according to the machine. 31... d5c4  32. c1c4  32... e5e3  33. d3e3  33... a4c4  34. e3e7  34... h8g8  35. e7e3  35... f6g5  36. f4g5  36... f8f1  37. h1f1  37... c4f1  38. b1c2 After all this logical play, the game arrives at a queen endgame with good winning chances for White. I firmly believe queen endgames are the most difficult in chess, even more than rook endgames. Even the very best can make mistakes, as we will soon see. 38... f1c4  39. c2d2 The nuances in queen endgames are very hard to understand and even more to explain. Play is very concrete, and sometimes you must check on some exact squares that only a computer can find. For this reason, I will indicate sometimes what the machine think is best, but the reader should not believe that I know why. 39... c4b4  40. d2d3  40... b4b5  41. d3c3  41... b5c6  42. c3d2  42... h7h6  43. g5h6  43... c6d5  44. d2c2  44... d5g2  45. e3d2  45... g2c6  46. d2c3  46... c6h6  47. c3c4  47... g8f8  48. b2b4 Now the king hides behind the pawn. 48... f8e7  49. c2b3  49... e7d7  50. b3a4 It's finally clear that White is winning. But the adventures are not over. 50... h6h5  51. a2a3  51... g7g6  52. c4a6  52... h5h4  53. a6g6 The position is easily winning with tablebases on, but not so much when actually playing the game. 53... d7c7  54. a4b5  54... c7b7  55. a3a4  55... h4e7  56. g6c6  56... b7b8  57. c6d5  57... e7e8  58. b5b6  58... e8e3  59. b6a6  59... e3a7  60. a6b5  60... a7e7  61. d5c6  61... e7e2  62. b5a5 