1. d2d4 After yesterday's defeat the Chinese GM decided to try something  completely different. 1... g8f6  2. c2c4  2... e7e6  3. b1c3  3... f8b4  4. g1f3  4... d7d5  5. d1b3  5... c7c5  6. d4c5  6... b8a6  7. c4d5  7... f6d5  8. c5c6 Yu is fully prepared for the game and uncorks a  novelty. 8... d8a5  9. c1d2  9... b7c6  10. g2g3  10... d5c3  11. b2c3  11... b4e7  12. f1g2  12... e8g8  13. e1g1  13... e6e5  The position is deceptively harmless for the second player. White's  Catalan bishop is always a monster whereas the queen can find a path to  the enemy weaknesses. 14. b3c2 An excellent idea. The queen is  restricting the activity of the black pieces. 14... a5c7  15. c2e4  15... f7f6  16. e4c4 Now that the black queen is back, the white one moves to a better position. 16... g8h8  17. d2e3  17... a6b8 So cannot tolerate his  poor knight and tries to relocate it. In the process, he frees the a6-f1  diagonal for his bishop. 18. f1d1  18... c8a6  19. c4e6  19... a6e2 Biting the bullet. 20. d1d2  20... e2a6  21. f3h4 Now the light squares in So's camp are horrible, and  he has to watch out not to get checkmated. 21... a6c8  22. e6c4  22... f6f5  23. h4f3  23... h7h6 After this, White's attack is running by itself. 24. a1d1  24... h8h7  25. h2h4 Clearly indicating what is about to happen next. 25... f8f6 However, when a brilliancy is set to happen, it happens: 26. f3g5 No one can accuse Yu of being inconsistent! 26... h6g5  27. h4g5  27... f6g6 This surprisingly loses at once. 28. g2d5  28... f5f4 The last chance. 29. d5e4 The simplest. Not only the rook on g6 is doomed, but the black king will not survive the assault. 29... e7g5  30. d2d6  30... g5f6  31. g1g2 Mate is unstoppable even after the  forcing 31... f4f3  32. g2f3  32... c8g4  33. f3g2  33... g4d1 