1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... a7a6  4. b5a4  4... g8f6  5. e1g1  5... b7b5  6. a4b3  6... f8c5 Caruana is a great expert in the Archangelsk Variation, having used it in countless online and over-the-board games. He also has an excellent and detailed course on it. 7. c2c3  7... d7d6  8. a2a4  8... c8b7 8...Rb8 is the main line and 8...Bg4 is also an important alternative. 9. d2d4  9... c5b6  10. f1e1  10... c6e7 [%c_effect e7;square;e7;type;Interesting;persistent;true] A fresh idea that has been employed by Caruana before. The knight heads to g6. 11. b1d2  11... e7g6  12. b3c2  12... e8g8  13. d2f1  13... c7c5 Play by both sides was very natural and the position is equal. 14. f1g3  14... h7h6 A typical and useful move to prevent Bg5. 15. h2h3 A move that is also prophylactic. The main idea is to place a bishop on e3 without Black having Ng4. 15... f8e8  16. d4e5 In the Ruy Lopez, White usually has a dilemma whether to play d5 or dxe5. Apparently, both lead to equality here. 16... d6e5  17. d1d8  17... e8d8  18. c1e3 The h3 move proves useful, otherwise Black would have the option of Ng4. 18... a8c8  19. a4b5  19... a6b5  20. e1d1  20... d8d1  21. a1d1  21... b6a5 [%c_effect a5;square;a5;type;Inaccuracy;persistent;true] Maybe Caruana was afraid of b2-b4, but the move played is not accurate. 22. g3f5  22... b7e4  23. c2e4  23... f6e4  24. f3e5 [%c_effect e5;square;e5;type;GreatFind;persistent;true] This justifies White's play. 24... c8e8  25. e5g6  25... f7g6  26. f5d6  26... e4d6  27. d1d6 Black will inevitably lose a pawn, but he still has drawing chances. 27... g6g5  28. d6a6  28... a5c7  29. a6c6  29... c7f4 [%c_effect f4;square;f4;type;GreatFind;persistent;true] The rook endgame is Black's only chance. 30. c6c5  30... f4e3  31. f2e3  31... b5b4  32. c3b4 