[Event "Olympiad-19 Preliminaries C"]
[Site "Siegen"]
[Date "1970.09.11"]
[Round "7"]
[White "Sirkia, Mauri O"]
[Black "Lombardy, William James"]
[Result "0-1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 c6 9. h3 a5 10. Be3 a4 11. d5 cxd5 12. cxd5 Qa5 13. Rc1 Nb6 14. Qe2 Bd7 15. Nd2 Rfc8 16. f4 a3 17. b4 Qxb4 18. fxe5 dxe5 19. Rb1 Qxc3 20. Rxb6 Nh5 21. Qf2 Be8 22. Rxb7 Rab8 23. Rxb8 Rxb8 24. Nb3 Rxb3 25. axb3 a2 26. Qxa2 Qxe3+ 27. Qf2 Qxb3 28. Qf3 Qxf3 29. Rxf3 Bf8 30. Bf1 Bd6 31. Kg2 Nf6 32. Rb3 Kf8 33. Bd3 Nd7 34. Bc2 Nc5 35. Rb1 h5 36. g4 hxg4 37. hxg4 Bd7 38. Kg3 Bc7 39. Ra1 Kg7 40. Rf1 Bd6 41. Kh4 Be7+ 42. Kg3 Bg5 43. Kf3 Kf6 44. Ra1 Bd2 45. Rd1 Bc3 46. Rg1 Kg5 47. Rg3 Bd4 48. Rg2 Nb7 0-1