[Event "Reggio Emilia-15 1972/73"]
[Site "Reggio Emilia"]
[Date "1972.12.??"]
[Round "?"]
[White "Popov, Luben"]
[Black "Zichichi, Alvise"]
[Result "1/2-1/2"]

1. d4 e6 2. Nf3 f5 3. g3 Nf6 4. Bg2 d5 5. c4 c6 6. Nbd2 Bd6 7. b3 O-O 8. Bb2 Bd7 9. Ne5 Be8 10. O-O Nbd7 11. Ndf3 Qe7 12. Qc2 Kh8 13. Nd3 Rg8 14. Nfe5 g5 15. f3 g4 16. Qd2 Rg7 17. cxd5 cxd5 18. Rac1 h5 19. Nf4 Bf7 20. Qe3 Nf8 21. Rc2 N8h7 22. Rfc1 Rgg8 23. Nxf7+ Qxf7 24. Qxe6 Qxe6 25. Nxe6 gxf3 26. exf3 h4 27. gxh4 Nh5 28. Re1 Rae8 29. Bc3 Rc8 30. Ree2 Rg6 31. Nc5 Nf4 32. Red2 Nf8 33. Bb4 b6 34. Na6 Rxc2 35. Rxc2 Bxb4 36. Nxb4 N8e6 37. Rd2 Nxd4 38. Kf1 Nde6 39. Bh1 d4 40. Nc6 d3 41. Ne5 Rg7 42. Nxd3 Rd7 43. Nxf4 Rxd2 44. Nxe6 Rxa2 45. f4 Rxh2 46. Bd5 Rxh4 47. Kg2 Rh7 48. Bc4 Rd7 49. Kf3 Rd6 50. Nc7 Kh7 1/2-1/2