1. g1f3  1... d7d5  2. d2d4  2... g8f6  3. c2c4  3... e7e6  4. g2g3  4... d5c4  5. f1g2  5... f8b4  6. c1d2  6... a7a5  7. e1g1  7... e8g8  8. b1a3  8... b4a3  9. b2a3  9... b7b5  10. d1b1 All of this has been seen so far with  Carlsen uncorking novelty now. 10... c7c6 Which is a generally  useful move. The long diagonal is blocked, the seventh rank opened for the queenside rook and Black does not yet determine his bishop position. 11. e2e4 So quickly banged out his next couple of moves. The threat is  e4-e5. 11... h7h6 Black is paying attention. 12. g3g4 Also played a tempo! It is a typical way to generate kingside  threats, especially after Black somewhat weakened himself. 12... f6h7  13. h2h4  13... e6e5 Now the bishop works without the need of development. 14. f3e5  14... d8d4  15. d2f4  15... f8e8 Carlsen has only three pieces out, and one of  them is not perfect. There should be a tactical shot in the air. 16. b1c1 Quite a good move! So is eyeing the kingside. 16... d4c5  17. f1d1  17... b8a6 Time to tackle the queenside pieces. 18. e5c6 There it is, the sacrifice! 18... c5c6  19. e4e5  19... c6c5  20. g2a8 So wins an exchange, but 20... c8g4  highlights the fact that his king is weak. 21. f4e3 The only move. 21... c5e5  22. d1d4  22... h7f6 Carlsen does not tolerate idle pieces and always hurries to bring them into the game.