[Event "Olympiad-18 Preliminaries B"]
[Site "Lugano"]
[Date "1968.10.21"]
[Round "4"]
[White "Hamann, Svend"]
[Black "Schorr, Leon"]
[Result "1-0"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Nc6 5. Bg5 Be7 6. e3 O-O 7. Qc2 h6 8. Bh4 a6 9. a3 Ng4 10. Bg3 Bd6 11. Rd1 Bxg3 12. hxg3 Ne7 13. Bd3 f5 14. cxd5 exd5 15. O-O c6 16. Na4 Rb8 17. b4 Bd7 18. Nc5 Qc7 19. a4 Nc8 20. Qb3 Nd6 21. Rc1 Kh8 22. b5 axb5 23. axb5 Ne4 24. Rc2 Qd6 25. Rfc1 Be8 26. Qb2 cxb5 27. Bxb5 Bxb5 28. Qxb5 Rf7 29. Nd3 Kh7 30. Nde5 Re7 31. Nh4 Qe6 32. Nhg6 Ree8 33. Nf4 Qg8 34. Nxg4 fxg4 35. Nxd5 Rbd8 36. Nf4 Nd6 37. Qh5 Qf7 38. Qxg4 Re7 39. Nd3 Ne4 40. Ne5 Rxe5 41. dxe5 Ng5 42. Qf4 Qg6 1-0