1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g1f3  3... d7d5  4. b1c3  4... f8b4 The Ragozin Defense always makes its appearance in elite tournaments. 5. d1a4 This was my favorite move when I faced the Ragozin. The idea is to bring the black knight to c6, where it is well known that it is not well placed, in front of the c-pawn, in positions with this structure. 5... b8c6  6. e2e3  6... e8g8  7. a4c2  7... c6e7 As I wrote before, Black's knight is not well on c6 and making sense of this piece is critical for Black. Many try this by setting up the e5-break, either with 7...Re8 or capturing on c4 and then removing the bishop to d6. Others ignore this problem for the time being and develop the queenside with 7...b6. 7...Ne7 is a bit more difficult to explain, but I think the idea is to also play with b6, but having the option to capture with the knight on d5 or simply not leave the knight unprotected on c6. If that doesn't sound very convincing, it's because I really don't understand this move well enough. 8. c1d2  8... b7b6  9. a2a3  9... b4c3  10. d2c3  10... c8a6 [%c_effect a6;square;a6;type;Inaccuracy;persistent;true] This move is superficial and it's strange that Gukesh gets in trouble so quickly in one of the most important lines of the Ragozin—something went terribly wrong in his preparation. 11. b2b3  11... a8c8  12. a1d1 A new move. 12... c7c5 [%c_effect c5;square;c5;type;Mistake;persistent;true] Opening that diagonal for the white bishop with the knight still on f6 is almost suicide. 13. d4c5  13... c8c5 [%c_effect c5;square;c5;type;Inaccuracy;persistent;true] 14. c2b2 [%c_effect b2;square;b2;type;GreatFind;persistent;true] After this accurate move, Black is completely lost. White has many tactical themes with the diagonals, pins, and the exposed rook on c5. 14... d8c8  15. c3f6  15... g7f6  16. b2f6  16... e7g6  17. h2h4 [%c_effect h4;square;h4;type;GreatFind;persistent;true] Caruana not only has an extra pawn, but he also has a strong attack on the dark squares. 17... d5c4  18. h4h5  18... c5f5  19. f6c3  19... g6e7  20. b3c4 White has many tempting moves and Caruana's choice is good enough, but not the most incisive. 20... f7f6  21. f1e2  21... f5c5  22. f3d2 White is a pawn up with an attack and better structure, so there's not much to complain about. 22... a6b7  23. h1h4 [%c_effect h4;square;h4;type;GreatFind;persistent;true] The typical rook maneuver we've seen before in the analysis. 23... e6e5  24. d2e4  24... b7e4  25. h4e4  25... c8e6  26. c3d2  26... c5a5 [%c_effect a5;square;a5;type;Inaccuracy;persistent;true] The final mistake. 27. e4g4  27... g8f7  28. h5h6 [%c_effect h6;square;h6;type;GreatFind;persistent;true] 28... e7g6  29. c4c5 [%c_effect c5;square;c5;type;GreatFind;persistent;true] A nice move, with the idea of bringing the white bishop to life and taking the rook out of the a7-pawn's defense. 29... a5c5  30. d2d7  30... e6d7  31. d1d7  31... f7g8  32. d7a7  32... c5c1  33. e1d2  33... c1h1 