1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. b1c3 Of all the world champions, Carlsen is the one of with the most flexible opening repertoire. He can play anything. I wonder how his opponents prepare against him. 3... f8b4  4. g2g3 Not the most popular move against the Nimzo. 4... e8g8  5. f1g2  5... d7d5  6. a2a3  6... b4c3  7. b2c3  7... d5c4  8. g1f3  8... c7c5  9. e1g1 Carlsen uses his usual strategy of going for a sideline with not so much theory and not so much advantage either. This worked like a charm in his first-round game, but it's going to backfire in this game. I admired his cleverness when he won, and I am going to criticize the same strategy now that he lost, since, as we say jokingly, \"The same hands that clap are the ones that boo.\" 9... c5d4 9...Bd7 and 9...Nc6 are also possible. 10. d1d4 Already a new move. 10... b8c6 