[Event "Olympiad-20 Preliminaries A"]
[Site "Skopje"]
[Date "1972.09.22"]
[Round "4"]
[White "Hamann, Svend"]
[Black "Westerinen, Heikki MJ"]
[Result "1/2-1/2"]

1. Nf3 d5 2. d4 c6 3. c4 e6 4. e3 Nf6 5. Bd3 Bd6 6. O-O Nbd7 7. Nc3 O-O 8. e4 dxc4 9. Bxc4 e5 10. Bg5 h6 11. Bh4 Qc7 12. h3 exd4 13. Nxd4 Be5 14. Nde2 Nc5 15. f4 Bxc3 16. Nxc3 Ncxe4 17. Nxe4 Nxe4 18. Re1 Qxf4 19. Qd4 Qxh4 20. Rxe4 Qg5 21. h4 Qg3 22. Rf1 Be6 23. Bxe6 fxe6 24. Rxf8+ Rxf8 25. Rxe6 Rf4 26. Re4 Qe1+ 27. Rxe1 Rxd4 28. Re7 Rb4 29. b3 h5 30. g3 Kh7 31. Kf2 Kg6 32. Kf3 Kf6 33. Rd7 g6 34. Rd6+ Kf5 35. Rd7 a5 36. Rf7+ Ke5 37. Re7+ Kd4 38. Rg7 Kc3 39. Rxg6 Kb2 40. Rg5 b6 41. Rxh5 Kxa2 42. g4 Rxb3+ 43. Kf4 a4 44. g5 a3 45. g6 Rb4+ 46. Kf3 Rb3+ 47. Kf4 Rb4+ 48. Kf3 1/2-1/2