1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... a7a6  4. b5a4  4... g8f6  5. e1g1  5... f6e4 Caruana prepared thoroughly and managed to surprise his opponent with a rare line in the Open Ruy Lopez. 6. d2d4  6... b7b5  7. a4b3  7... d7d5  8. d4e5  8... c8e6  9. c2c3  9... f8c5  10. b1d2  10... e8g8  11. b3c2  11... e4f2 A typical sacrifice in these lines that has been tried by the great Botvinnik against the great Smyslov. 12. f1f2  12... c5f2  13. g1f2  13... f7f6 Black cannot go without this anyway. 14. d2f1 Apparently, White is more successful recently with this move than with 14.exf6. 14... f6e5  15. f2g1  15... d8d7 A surprise for Vachier-Lagrave. Black defends his bishop in advance. 16. c1g5 A good development move, which aims the d5-pawn. 16... a8e8 [Also blitzed by Caruana.] 17. d1d2 That is a novelty. 17... d5d4 Not only a strong reply in return to the novelty, but an instant reaction by Caruana. 18. f1g3  18... h7h6  19. g5h4  19... d4c3  20. d2c3 A risky decision. 20... f8f3 \"This came as a big surprise.\" (Vachier-Lagrave) And most likely was connected with a blunder. 21. g2f3  21... c6d4 Black's position looks frightening, but 22. c2d1 covers everything. Still, White has to be very accurate. 22... e8f8  23. g3e4  23... e6c4  24. g1g2  24... f8f4 Preparing a nasty trick. 25. h4e1 \"It came out of necessity.\" (Vachier-Lagrave) All the other more natural retreats would lead White to a beautiful disaster. 25... d7f5  26. e4d2  26... e5e4 The last desperate try before White consolidates in full. 27. e1g3 Precision until the end $1 27... e4f3  28. g2f2 One more accurate move puts an end to Caruana's active tries. The king hides behind the pawn, and that provides White time for some important trades. 28... f4g4  29. d2c4  29... b5c4  30. d1f3  30... d4f3  31. c3f3 The attacking potential is gone, and Vachier-Lagrave converts in style. 31... f5c2  32. f3e2  32... c2f5  33. f2g1  33... h6h5  34. a1f1  34... f5g6  35. g1h1  35... h5h4  36. g3c7  36... h4h3 