The Irish Chess Union

[Event "Siegen Olympiad 1970"] [Site "Siegen FRG"] [Date "1970.??.??"] [Round "11"] [White "Patterson, Nicholas"] [Black "Heyns, Anthony"] [Result "1-0"] [ECO "E63"] [ICUid "15907"] 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. c4 O-O 5. O-O d6 6. d4 Nc6 7. Nc3 a6 8. d5 Na5 9. Nd2 c5 10. Qc2 Rb8 11. b3 b5 12. Bb2 e5 13. dxe6 Bxe6 14. cxb5 axb5 15. Rad1 Bf5 16. e4 Bg4 17. f3 Be6 18. e5 dxe5 19. Nde4 Qe7 20. Nxf6+ Bxf6 21. Ne4 Bg7 22. Qxc5 Qxc5+ 23. Nxc5 Rfd8 24. Nxe6 fxe6 25. Bh3 Kf7 26. f4 Ke7 27. fxe5 Bh8 28. Rxd8 Rxd8 29. Ba3+ Kd7 30. Bd6 1-0