[Event "Vidmar Memorial-02"]
[Site "Ljubljana/Portoroz"]
[Date "1973.04.09"]
[Round "6"]
[White "Portisch, Lajos"]
[Black "Csom, Istvan"]
[Result "1-0"]
1. c4 Nf6 2. Nc3 e6 3. Nf3 c5 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. d4 cxd4 8. Qxd4 Nc6 9. Qf4 O-O 10. Rd1 Qb8 11. Qxb8 Rfxb8 12. Bf4 Rd8 13. Nb5 Na5 14. Bd6 Kf8 15. Bxe7+ Kxe7 16. Nd6 Ne8 17. Nxb7 Nxb7 18. Ne5 Rab8 19. Rxd7+ Rxd7 20. Nc6+ Kf8 21. Nxb8 Rc7 22. Na6 Re7 23. b4 Nbd6 24. Rc1 e5 25. e3 e4 26. Bf1 Rb7 27. c5 bxc5 28. bxc5 Nc8 29. a4 Rb2 30. Rd1 Ne7 31. Bb5 Ng8 32. c6 Rc2 33. Rd8 Ke7 34. c7 1-0