[Event "Islington op"]
[Site "Islington"]
[Date "1972.12.16"]
[Round "2"]
[White "Sirk, W."]
[Black "Nicholas, GJ."]
[Result "0-1"]
[ECO "B34"]
[PlyCount "66"]
[EventDate "1972.12.15"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ENG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be2 Bg7 6. c3 Nf6 7. f3 0-0 8. 0-0 e5 9. Nc2 d5 10. Bd3 Be6 11. Be3 Qc7 12. Nd2 Rfd8 13. Qe2 Rac8 14. Bf2 Nh5 15. g3 f5 16. exd5 Bxd5 17. Bc4 Ne7 18. Ne3 Bxc4 19. Nexc4 b5 20. Na3 a6 21. Nc2 Nd5 22. a4 Nxc3 23. bxc3 Qxc3 24. Nd4 exd4 25. axb5 axb5 26. Rac1 Qxc1 27. Rxc1 Rxc1+ 28. Kg2 d3 29. Qe6+ Kh8 30. Qb6 Rcc8 31. Qxb5 Nf6 32. h4 Rc2 33. Qa5 Re8 0-1

[Event "Islington op 7th"]
[Site "Islington"]
[Date "1971.12.13"]
[Round "4"]
[White "Welsh, TD."]
[Black "Sirk, W."]
[Result "1-0"]
[ECO "C98"]
[PlyCount "87"]
[EventDate "1971.12.10"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ENG"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Be7 7. Re1 0-0 8. c3 d6 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. dxe5 dxe5 13. Nbd2 Nc6 14. Nf1 h6 15. Ne3 Bd6 16. Nh4 Ne7 17. g4 Be6 18. Nef5 Bxf5 19. gxf5 Kh7 20. Kh1 Nc6 21. Qf3 Rfd8 22. Be3 Bf8 23. Rg1 Ne7 24. Rg3 Qc8 25. Rag1 Neg8 26. Qg2 Nh5 27. Rf3 Ngf6 28. Bc1 c4 29. Qh2 Qc7 30. Ng2 Bc5 31. Ne3 Bd6 32. Nd5 Nxd5 33. exd5 e4 34. Qg2 exf3 35. f6+ g6 36. Bxg6+ Kh8 37. Qxf3 fxg6 38. Rxg6 Bf4 39. Bxf4 Qxf4 40. Qxh5 Kh7 41. Rg7+ Kh8 42. Qg6 Qf3+ 43. Kg1 Qd1+ 44. Kh2 1-0

