[Event "Reggio Emilia-13 1970/71"]
[Site "Reggio Emilia"]
[Date "1970.12.28"]
[Round "3"]
[White "Popov, Luben"]
[Black "Cosulich, Roberto"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 g6 6. Nc3 d6 7. e4 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 Na6 11. f3 Nc7 12. a4 Nd7 13. Kh1 b6 14. Nc4 Ne5 15. Ne3 f5 16. exf5 gxf5 17. f4 Nf7 18. Bd2 Bd7 19. Qc2 Qf6 20. Bd3 Nh6 21. Rf3 Re7 22. Rg3 Rae8 23. Rf1 a6 24. Ncd1 b5 25. Bc3 Qf8 26. b3 Bc8 27. Rg5 Kh8 28. Bxf5 Nxd5 29. Nxd5 Bxf5 30. Qb2 b4 31. Bxg7+ Rxg7 32. Nf6 Re6 33. Nh5 Bg6 34. Nxg7 Qxg7 35. Qd2 Nf5 36. Qd5 Qf6 37. Qa8+ Re8 38. Qxa6 h6 39. Rxg6 Qxg6 40. Qb7 Qg4 41. Rg1 Rg8 42. Qe4 Nd4 1/2-1/2