1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1c4  3... g8f6  4. d2d3  4... f8e7 Caruana played this line before in the tournament, against Dominguez, when he saved a lost position. 5. e1g1  5... e8g8  6. b1c3  6... d7d6  7. a2a4  7... c8g4  8. h2h3  8... g4h5  9. c1e3  9... c6d4  10. e3d4  10... e5d4  11. c3d5  11... f6d5  12. c4d5  12... c7c6  13. d5b3 White now is threatening 14.g4 followed by the capture of the d-pawn. 13... h5f3  14. d1f3  14... g7g6 A new move. This type of position resembles some variations of the Ruy Lopez, where there is a battle in the middlegame with opposite colored bishops. White's position is a little more comfortable as his bishop is more active, and his plan is clearer (to advance the pawns on the kingside). However, as Caruana is the best-prepared player in the world and the move 7...Bg4 practically forces this position, he must have studied it very deeply with computers and come to the conclusion that it's not dangerous. 15. f3g4 A logical idea, preparing to advance the f-pawn. 15... g8g7  16. f2f4  16... d8c7  17. a1e1  17... a8e8  18. g4f3  18... c7d7 White's play has been very logical so far, and now he must choose a course of action. 19. e1e2  19... e7d8  20. g1h1  20... d6d5 [%c_effect d5;square;d5;type;GreatFind;persistent;true] Another version of the pawn sacrifice. 21. e4d5  21... e8e2  22. f3e2  22... f8e8  23. d5c6  23... b7c6 Black has excellent compensation for the pawn. 24. e2f2  24... d7d6 There are good options. 25. g2g3  25... e8e3  26. f1e1  26... d8b6 This endgame should be a draw without much trouble. 27. h1g2  27... d6f6  28. b3c4  28... a7a5  29. f2f1  29... b6c5 [%c_effect c5;square;c5;type;Mistake;persistent;true] A big mistake, allowing White to change the pawn structure to his favor. 30. e1e3 [%c_effect e3;square;e3;type;GreatFind;persistent;true] 30... d4e3  31. c2c3 Now, things are different: the position becomes very dangerous since White is not forced to exchange queens, and the pawns are mobile. Praggnanandhaa converts the advantage convincingly. 31... c5b6  32. f1f3  32... f6e7  33. g2f1  33... b6a7  34. f1e2  34... e7b7  35. b2b3  35... b7e7  36. d3d4  36... c6c5  37. d4d5  37... a7b8  38. f3e3  38... e7f8 