Swindle City, here we come!

Compare and contrast the position after move 15 with the remainder of the game!
(Note: This has been happening in my games so often recently even I can no longer explain it)


Press,Shaun - Zhang,Yijun [B07]
Street Chess, 16.06.2012

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 Bg7 5. Qd2 O-O 6. Bh6 Nc6 7. Bxg7 Kxg7 8. h4 e5 9. d5 Ne7 10. h5 Nxh5 11. Be2 Nf6 12. Qh6+ Kh8 13. g4 Bd7 14. g5 Nh5 15. Bxh5 Ng8 16. Qxf8 Qxf8 17. Be2 f5 18. Nf3 fxe4 19. Nxe4 Bf5 20. Ng3 Ne7 21. O-O-O Qf7 22. Rh6 Nxd5 23. Rdh1 Nf4 24. Bd1 Re8 25. Nxf5 gxf5 26. g6 Nxg6 27. Ng5 Qxa2 28. Rxg6 Qa1+ 29. Kd2 Qa5+ 30. c3 Qd5+ 31. Kc1 Re7 32. Rgh6 e4 33. Nxh7 Kg7 34. Ng5 f4 35. Rh7+ Kf8 36. Rh8+ Kg7 37. R1h7+ Kf6 38. Rh6+ Kf5 39. Rf8+ Ke5 40. Bg4 Re6 41. Nf7# 1-0