1. e2e4  1... e7e5 Nakamura had secured the third place before the final round and  could not go any higher or lower. Thus came the novelty of the century: 2. e1e2 [This has been called the Bongcloud, although Carlsen thinks the  original Bongcloud is 1.f3 and 2.Kf2. - ed.] 2... g8f6  3. d2d3  3... d7d5  4. b1d2  4... b8c6  5. c2c3  5... b7b6 Quick and natural development leads to a won position for Xiong in the next moves. 6. d1c2  6... c8b7  7. g1f3  7... d8d7  8. b2b4  8... e8c8  9. a2a3  9... c8b8  10. c1b2  10... g7g6  11. e2e1  11... f8h6  12. a1d1  12... h8e8 The centralized black army is  impressive. 13. f1e2 If White could only castle now, he would not be that horrible, but the consequences of the novelty Ke1-e2 still tell. 13... f6h5 Time to take care of this king. 14. b4b5  14... c6a5  15. c3c4  15... h5f4  16. e2f1 We already know what happens if White allows the  capture on g2.