1. c2c4  1... e7e5  2. g2g3  2... c7c6 A variation of the English Opening that is being discussed a lot these days. 3. d2d4 This move is usually Carlsen's choice, while Ding prefers 3.Nf3. As it turns out, some opening choices are a matter of taste. 3... f8b4  4. c1d2  4... b4d2  5. d1d2  5... d7d6  6. b1c3  6... g8f6  7. e2e4 Interestingly, only one game had been played with this move. It's not surprising that almost everyone prefers to develop the bishop on g2—what could be more natural than that $2 But Carlsen doesn't play like us mere mortals. 7... e8g8  8. g1e2  8... b7b5 An excellent reaction. Harikrishna takes advantage of the fact that the e4-pawn needs protection. 9. c4b5  9... c6b5  10. a2a3 Played after a long deliberation. The alternatives don't promise an advantage. 10... a7a5  11. f1g2  11... c8b7  12. e1g1  12... b5b4 Black's plan to advance the b-pawn quickly creates some weaknesses. 13. a3b4  13... a5b4  14. c3d5  14... f6d5 It is difficult to say which piece should be used to capture the d5-knight. I would have played the same move Harikrishna played, but the computer prefers to take it with the bishop. 15. e4d5  15... d8b6  16. a1a8  16... b7a8 