1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... a7a6  4. b5a4  4... g7g6  5. d2d4  5... e5d4  6. c2c3  6... f8g7  7. c3d4  7... b7b5  8. a4b3  8... g8e7  9. d4d5  9... c6a5  10. c1d2  10... a5b3  11. d1b3  11... c7c5  12. d2c3  12... f7f6 Temporarily shuts the  diagonal for the bishop, but Yip correctly decided to keep the bishop  alive. 13. a2a3  13... d7d6  14. h2h4 This move is a novelty, which presumably prevents  the g6-g5, followed by Ne7-g6-(e5), maneuver. 14... e8g8 Black does not even blink. 15. b1d2  15... d8e8  16. e1g1  16... c8d7  17. b3c2  17... a8c8 Yip slowed down a bit, and this could have had  unpleasant consequences. 18. b2b3  18... h7h6  19. a3a4  19... c8a8  20. a4b5  20... a6b5  21. a1a8  21... e8a8  22. f1a1  22... a8b7  23. c2a2  23... e7c8  24. f3e1 The knight is looking for a better position. 24... b5b4  25. c3b2  25... d7b5 But the young American does not allow either of the knights to reach good outposts. 26. e1c2 With the intention to back  up the first knight for the battle for the c4 outposts, but the world  champion does not have the time for that. 26... b5d3  27. c2e3 The knight is almost there. 27... b7e7 But there is a problem with the e4-pawn. 28. a1e1 The tactical defense is White's only possibility. 28... c8b6  29. a2a1  29... f8a8  30. a1c1  30... h6h5 Very mature play by the young American. The piece  that can give much more now is the dark-squared bishop. 31. e3c4  31... b6c4  32. d2c4 The knight finally makes it to the outpost, but in  the process Black gets all the remaining advantages.