1. e2e4  1... b8c6 My favorite childhood opening! 2. g1f3 The simplest reply. It  is an invitation for the "normal play" after 2....e5. 2... d7d5 which is rejected. Carlsen goes for a super-risky Scandinavian instead. 3. e4d5  3... d8d5  4. b1c3  4... d5a5  5. f1b5  5... c8d7  6. e1g1  6... a7a6  7. b5a4 The bishop should be kept for the time being. 7... g8f6  8. d2d3  8... e8c8 A novelty which does not inspire. 9. f3g5 This reveals one of the Scandinavian problems: the pawn on f7  is often in danger whenever Black castles long. 9... d7g4 Active  defense. 10. d1d2  10... g4h5  11. a4c6  11... b7c6  12. d2e1 Aronian acknowledges he did not choose  the right spot for his main attacker. 12... h7h6  13. g5e4  13... e7e6  14. c1d2 Natural, logical and... not the best. 14... f8e7  15. b2b3 A good plan. Aronian is bringing his knights closer to the optimal square on c5. 15... h5g6  16. c3a4  16... a5d5  17. e4g3 Oh, not this way. 17... c6c5 The world champion is immediately plugging the horrible  hole. 18. d2e3 And Aronian goes for the pawn. 18... f6g4  19. e1a5  19... g4e3  20. a5a6 