Xiong already believed he is better.
1. d2d4  1... g8f6  2. c2c4  2... g7g6  3. b1c3  3... d7d5  4. c4d5  4... f6d5  5. e2e4  5... d5c3  6. b2c3  6... f8g7  7. f1b5  7... c7c6  8. b5a4  8... e8g8  9. g1e2  9... e7e5  10. e1g1  10... b8d7  11. c1e3  11... d8e7  12. a4c2  12... d7b6  13. f2f4 "For sure I surprised him in the opening."  (Radjabov) 13... e5d4  14. e3d4  14... f8d8  15. f4f5  15... g7d4  16. c3d4  16... c6c5  17. d1d2 At this point of the game the Azeri GM  became overexcited. Without the fianchetto bishop he felt that everything  should end with quick mate and went for 17... b6c4 "I completely missed this. Probably it is a good move."  (Radjabov) 18. d2d3 A practical choice. 18... c4e5  19. d3a3  19... e5c4  20. a3c3 