[Event "Vidmar Memorial-04"]
[Site "Ljubljana/Portoroz"]
[Date "1977.06.02"]
[Round "1"]
[White "Sosonko, Gennadi"]
[Black "Sax, Gyula"]
[Result "1-0"]
[WhiteElo "2530"]
[BlackElo "2565"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 a6 8. Be2 b5 9. Qb3 Bb7 10. e5 Nd5 11. O-O Nxc3 12. Qxc3 Bd5 13. a4 Nc6 14. Be3 bxa4 15. Rxa4 a5 16. Nd2 Qd7 17. Rfa1 Rab8 18. Nc4 Rb4 19. Rxa5 Rfb8 20. Ra8 Qc8 21. Rxb8 Qxb8 22. h3 f6 23. Na5 Nxa5 24. Rxa5 c6 25. Qa3 Kf7 26. Ra8 Qb6 27. Ra6 Qb8 28. Ra8 Qb6 29. Ra7 Bf8 30. exf6 Kxf6 31. Ra6 Qb7 32. Ra7 Qb6 33. Bg5+ Kf7 34. Bf3 Bb3 35. Be3 Bc4 36. d5 c5 37. Ra5 Rxb2 38. Bxc5 Qf6 39. Qe3 Rb3 40. Qe4 Bd3 41. Qe3 Bc2 42. Qd2 Bf5 43. Be3 Qd6 44. Bf4 Qb6 45. d6 Rb2 46. Rxf5+ gxf5 47. Qd5+ 1-0