1. Nf3 Nf6 2. c4 g6 3. b4

3... Bg7 4. Bb2 d6 5. g3 O-O 6. Bg2 Nc6 7. b5 Na5 8. d3 c5 9. Nc3 9. bxc6 bxc6 (9... Nxc6) 9... Rb8 10. O-O b6 11. Nd2 Bb7 12. e4 a6 13. a4 Bc8 14. Qc2 e5 15. Nd1 Bh6 16. Re1

Iwu said later that this was a positional sacrifice, but he overestimated his ability to open the diagonals for his bishops. The result is interesting. 16... Bxd2 17. Qxd2 Nb3 18. Qe2 Nxa1 19. Bxa1 axb5 20. axb5 Ra8 21. Ne3 Nh5 22. Bf3 Ng7 23. Bg4 Bb7 24. f4 Qe7 25. Rf1 exf4 25... f5 26. exf5 gxf5 27. Bf3 26. gxf4 f5 27. exf5 gxf5 28. Bf3 Rfe8 29. Bxb7 Qxb7 30. Qf2 30... Re6 31. Nd5 Rg6+ 32. Kh1 Ne6 33. Qf3 Kf8 34. Qh3 Qf7 35. Nxb6 Ra2 36. Nd5 Nd4 37. Bxd4 cxd4 38. b6 Kg7 39. Re1 Kh8 40. Qh4 Qg8 41. b7 Rb2 41... Rag2 42. Qf6+!! Rxf6 43. Nxf6 42. Ne7

42. Nf6! 42... Rh6! 43. Nxg8 43. b8=Q Qxb8 43... Rxh4 44. Re8 44. Ne7 44... Rhxh2+ 45. Kg1 Rhg2+ 0-1 [Shabazz D.]