1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g2g3  3... c7c5 Taking the game into the Benoni Defense is more fun and risky than the normal Catalan Opening lines resulting from 3...d5. 4. d4d5  4... e6d5  5. c4d5  5... d7d6  6. b1c3  6... g7g6  7. f1g2  7... f8g7  8. g1f3  8... e8g8  9. e1g1  9... f8e8 The main position of the Benoni Defense with g3. 10. c1f4 Historically 12.Nd2 is the main move, but it has lost some popularity recently. 10... c8f5 One of several possible lines. I particularly like 10...h6 with the idea of playing g6-g5, leading to a sharp position. 11. f3h4 This is the problem of developing a bishop on f5 when you have a pawn on g6; the piece has to move on the same diagonal. 11... f5c8  12. f1e1  12... f6g4 Maneuvering the knight to e5 is a well-known positional idea in the Benoni. 13. h4f3  13... b8d7  14. f4g5 [%c_effect g5;square;g5;type;GreatFind;persistent;true][%c_highlight d8;keyPressed;none;opacity;0.8;square;d8;persistent;false,g5;keyPressed;none;opacity;0.8;square;g5;persistent;false] An excellent move to disrupt Black's harmonious development. 14... d8b6  15. d1c1  15... d7e5 A new move. 16. h2h3  16... e5f3  17. e2f3 [%c_effect f3;square;f3;type;GreatFind;persistent;true] Normally this capture isn't desirable for White, but here the e-file and the better development justify this move. 17... e8e1 [%c_effect e1;square;e1;type;Inaccuracy;persistent;true] 18. c1e1  18... g4f6 [%c_effect f6;square;f6;type;Mistake;persistent;true] This move is just losing. 19. e1e7 [%c_effect e7;square;e7;type;GreatFind;persistent;true] The queen's invasion is decisive. 19... f6d7  20. e7e8  20... d7f8  21. a1e1  21... b6b2 Black cannot finish development, so he at least takes some material. 22. c3e4  22... b2d4  23. e4d6  23... d4d5  24. d6c8  24... a8c8  25. e8c8  25... d5g5  26. f3f4  26... g5h5  27. c8b7 White is an exchange ahead for no compensation. Caruana converts the advantage easily. 27... g7d4  28. g2d5  28... h5f5  29. g1g2  29... h7h5  30. h3h4  30... a7a5  31. a2a4  31... g8g7  32. d5c4  32... g7h6  33. b7f7  33... f5f7  34. c4f7 