[%c_effect g7;square;g7;type;GreatFind;persistent;true] Now a forced line follows in which Robson had seen everything right.
1. e2e4  1... e7e5  2. g1f3  2... g8f6  3. d2d4  3... f6e4  4. f1d3  4... d7d5  5. f3e5  5... b8d7 A solid line, which has been used by the likes of Kramnik and Gelfand, to name a few. 6. e1g1  6... d7e5  7. d4e5  7... e4c5  8. c1e3  8... f8e7  9. f2f4  9... c5d3  10. d1d3 White gave up the bishop pair, but intends to advance his kingside majority fast. 10... g7g6  11. b1c3  11... c7c6  12. c3e2  12... e8g8 Gelfand also dared to castle in this position. 13. e2g3  13... e7h4 A fierce battle is going on around the f5-square. 14. e3c5  14... f8e8 [#] And the fierce battle leads once again to a direct skirmish. 15. f4f5 [%mdl 8][%c_effect f5;square;f5;type;Interesting;persistent;true] Played after prolonged thought. \"This was very committal.\" (Robson) And it hapened to be a novelty. 15... e8e5 [%c_effect e5;square;e5;type;GreatFind;persistent;true] Xiong needs to accept the challenge. 16. f5g6  16... h7g6  17. c5d4  17... e5e8  18. f1f7  18... g8f7  19. a1f1  19... f7e7  20. d3g6 All of this was well calculated by White, who knew that he has a guaranteed perpetual, but was not sure if there was anything more. 20... c8e6 And yet, solving concrete, practical problems turned out to a difficult task even for an exceptional calculator like Xiong $1