1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1c4  3... g8f6  4. d2d3  4... f8c5  5. c2c3  5... e8g8  6. e1g1  6... d7d6  7. f1e1  7... a7a5  8. c1g5 In a must-win situation, Carlsen chooses a risky line. 8... h7h6  9. g5h4  9... g7g5 This is why the early bishop sortie is risky: it may  end up being locked out of the game for a long time. 10. h4g3  10... c5b6  11. b1a3  11... f6h7  12. a3c2 The knight is above all supporting the d3-d4 push, although  it might as well be easily transferred to the f5 (d5)-square. 12... h6h5  13. h2h3  13... h5h4  14. g3h2  14... g5g4 Not just attacking the kingside, but  above all fighting for the center. 15. h3g4  15... c8g4  16. d3d4 Very consistent  and strong. 16... e5d4  17. c2d4 