1. c2c4  1... g8f6  2. g1f3  2... e7e6  3. g2g3  3... d7d5  4. f1g2  4... f8e7  5. e1g1  5... e8g8  6. d2d3 Reti instead of the Catalan. 6... a7a5  7. b1c3  7... c7c6 Too passive. 8. e2e4 Carlsen is immediately taking advantage of his opponent's sloppy play. He is heading to a favorable King's Indian Attack setup. 8... b8a6 Alas, the knight is too far away from the key d3-square. 9. e4e5  9... f6d7  10. h2h4 Carlsen tricked his opponent in the opening and has a perfect King's Indian Attack with an easy step-by-step assault on the kingside coming. 10... b7b6  11. f1e1  11... c8b7  12. c4d5 This is a good moment to fix the pawn structure in the center. 12... c6d5 