1. e2e4  1... c7c6  2. d2d4  2... d7d5  3. e4d5 When Bobby Fischer played this variation, no one paid much attention to it, but it looks like he was many years ahead of his time. Check the wonderful game Fischer vs. Petrosian, Belgrade 1970. 3... c6d5  4. f1d3  4... g8f6  5. c2c3  5... c8g4  6. d1b3  6... d8c7 A natural move, although the queen will have some problems on that square, as we will see later. 7. h2h3  7... g4h5 A pawn sacrifice. 8. g1e2 So decides to play solid. 8... h5e2 A natural move, after all the h5-bishop may have some problems with the g4-advance or an attack with the knight. White's surprising next move, however, guarantees an advantage. The alternatives 8...Nc6 and 8...e6 are better. 9. c1f4 A new move. Is it possible that So had this move prepared $2 This is a nice intermediate move that develops the bishop exploiting a tactical idea. 9... c7d7  10. d3e2  10... b8c6  11. b1d2 The opening was a success for White. So has the bishop pair and better development. The knight now heads towards the e5-square, causing problems for the queen on d7. 11... e7e6  12. d2f3 The position is difficult and Xiong decides to sacrifice a pawn. Objectively, however, there is not enough compensation. 12... f8d6  13. f4d6  13... d7d6  14. b3b7  14... a8b8  15. b7a6  15... e8g8  16. a1b1  16... f6e4  17. e1g1  17... f7f5  18. a6a4  18... c6e7  19. f3e5  19... b8b7  20. a4c2  20... e7g6  21. e5g6  21... h7g6  22. e2d3 Now White is ready to capture the knight that is so disturbing. The position is winning, since Black is a pawn down and has a damaged pawn structure. 22... g6g5  23. b1e1  23... f8b8  24. b2b3  24... b7c7 