En Lucerna
Xu Jun - Amador
Copa del Mundo II Lucerna 1989
Nimzo India E32
48/721 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bc3 6. Qc3 b6 7. Nf3 Bb7 8. e3 d6 9. Bd3 N 9... Nbd7 10. O-O e5!? 11. Bf5 Qe7 [11... e4 12. Nd2 Re8 13. b4 Qe7 14. Bb2 White has a slight advantage d5, ae1, f3 a1-g7] 12. b4 g6?! [12... Be4! 13. Bh3 (13. Be4 Ne4 g5=) 13... Bf3 14. gf3 Nh5! f5 15. Bd7 Qd7 16. de5 Qh3 equal chances, quiet position] 13. Bc2! [13. Bh3 Ne4 f5 ץh3] [13. Bd7 Nd7 equal chances, quiet position] 13... Bf3!? 14. gf3 c5 15. dc5 [15. Bb2 cd4 16. ed4 Nh5] 15... dc5 16. Bb2 Qe6 17. Bd3 Qh3 18. Be2 Rfe8 19. Rad1 Re6 20. Kh1! [20. Rd2 g5! e4, h6-+] 20... Qh4 21. Qe1! g1-g3 21... a5 22. b5 Rd8!? 23. Rg1 Ne8 24. f4?! [24. Rd2 White has a slight advantage] 24... ef4 25. Bg4 [25. Rg4 Qe7 26. Rf4 Rd6 f6, e5] 25... Rd6 [25... fe3!?] 26. Rd6 Nd6 27. Qc3 f6 28. Qd3 [28. Be6 Kg7 29. Rg4 Qh5! (29... Qf2? 30. Rf4 White has a decisive advantage) 30. Bd7 Ne4! Black has a moderate advantage] 28... Ne5 29. Be5 fe5 30. ef4 ef4 31. Qf3 Qf6 32. Re1 Kg7 33. Re6 Qd4 34. Re7 Nf7 [34... Kf6?? 35. Qe2 White has a decisive advantage] 35. Qb7? [35. Be6 35... Qd1 36. Kg2 Qf3 37. Kf3 Kf6 38. Rf7 Ke6 39. Rb7 Black has a slight advantage] 35... Qc4 Black has a decisive advantage 36. Kg2 f3? [36... Qd5! 37. Qd5 Rd5 38. Be6 Kf6! 39. Bf7 Rg5 Black has a decisive advantage] 37. Bf3 Rd2 38. Qb6 Qd4 39. Be2?? [39. Re2 Re2 40. Be2 Ne5 unclear position] 39... Qd5! Black has a decisive advantage 40. Bf3 [40. Kh3 Re2] 40... Qg5
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