[Event "London Bayswater op 3rd"]
[Site "London"]
[Date "1971.06.13"]
[Round "4"]
[White "Chalfen, Allen"]
[Black "Sigoun, V."]
[Result "0-1"]
[ECO "A97"]
[PlyCount "46"]
[EventDate "1971.06.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 f5 2. Nf3 Nf6 3. g3 e6 4. Bg2 d6 5. d4 Be7 6. Nc3 0-0 7. 0-0 Qe8 8. e3 Nbd7 9. b3 e5 10. dxe5 dxe5 11. Bb2 e4 12. Ne1 Bd6 13. Rc1 b6 14. Nb5 Be5 15. Ba3 c5 16. Qe2 Qe6 17. Rd1 a6 18. f4 axb5 19. fxe5 Nxe5 20. Bc1 bxc4 21. Bh3 g6 22. bxc4 Ba6 23. Qc2 Bxc4 0-1

[Event "London Bayswater op 3rd"]
[Site "London"]
[Date "1971.06.12"]
[Round "2"]
[White "Lipnowski, Irwin"]
[Black "Sigoun, V."]
[Result "1-0"]
[ECO "A04"]
[PlyCount "65"]
[EventDate "1971.06.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. Nf3 f5 2. e4 fxe4 3. Ng5 Nf6 4. d3 exd3 5. Bxd3 e5 6. Bxh7 Bc5 7. Bg6+ Ke7 8. Qe2 d6 9. Nf7 Qf8 10. Nxh8 Qxh8 11. Bg5 Nc6 12. Nd2 Be6 13. c3 a5 14. Ne4 Bb6 15. h4 Rd8 16. Ng3 Kd7 17. Bxf6 Rf8 18. Bf5 Bxf5 19. Nxf5 Rxf6 20. Ne3 Qf8 21. Rf1 Qf7 22. Qc4 Re6 23. Nd5 Ba7 24. Qe4 Nd8 25. 0-0-0 c6 26. Ne3 Rf6 27. Ng4 Qxa2 28. Nxf6+ gxf6 29. h5 Ne6 30. Qh7+ Kc8 31. Rxd6 Bb6 32. Rfd1 Nc5 33. Qh8+ 1-0

[Event "London Bayswater op 3rd"]
[Site "London"]
[Date "1971.06.12"]
[Round "3"]
[White "Sigoun, V."]
[Black "Bozic, I."]
[Result "1-0"]
[ECO "B44"]
[PlyCount "53"]
[EventDate "1971.06.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 c5 3. Nf3 cxd4 4. Nxd4 a6 5. Be2 Qc7 6. Be3 Nc6 7. 0-0 Nf6 8. Nd2 d5 9. Nxc6 bxc6 10. Bd3 Bd6 11. f4 e5 12. f5 0-0 13. Qf3 a5 14. Qg3 Nh5 15. Qg5 Nf6 16. Rf3 h6 17. Qh4 Be7 18. Bxh6 Nxe4 19. Qg4 Bc5+ 20. Kh1 f6 21. Nxe4 dxe4 22. Bc4+ Kh8 23. Bxg7+ Qxg7 24. Rh3+ Qh7 25. Rxh7+ Kxh7 26. Qg6+ Kh8 27. Qh6# 1-0

[Event "London Bayswater op 3rd"]
[Site "London"]
[Date "1971.06.11"]
[Round "1"]
[White "Sigoun, V."]
[Black "Lynn, Robert"]
[Result "0-1"]
[ECO "C02"]
[PlyCount "72"]
[EventDate "1971.06.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 cxd4 6. cxd4 Nge7 7. Na3 Nf5 8. Nc2 Bd7 9. Bd3 Be7 10. Bxf5 exf5 11. Ne3 Be6 12. g3 Qb6 13. h4 Nb4 14. 0-0 0-0 15. a3 Qa6 16. Bd2 Nd3 17. Bc3 f4 18. Ng2 Bg4 19. Qe2 f6 20. Kh1 fxe5 21. dxe5 d4 22. Bd2 Qc6 23. Qxd3 Bxf3 24. Rg1 fxg3 25. fxg3 Be4 26. Qb3+ Bd5 27. Qd3 Rf2 28. Qxd4 Bxg2+ 29. Kh2 Bc5 30. Qxf2 Bxf2 31. Rxg2 Rf8 32. Rc1 Qe4 33. Bb4 Rf3 34. Bd6 Bd4 35. e6 Qxe6 36. Rc8+ Qxc8 0-1

[Event "Islington Amateur U190 op"]
[Site "Islington"]
[Date "1971.06.??"]
[Round "?"]
[White "Sigoun, V."]
[Black "Thomson, S."]
[Result "1-0"]
[ECO "B21"]
[PlyCount "59"]
[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 c5 2. d4 cxd4 3. f4 e5 4. Nf3 Nc6 5. Bc4 Nf6 6. fxe5 Nxe5 7. Nxe5 Qa5+ 8. Nd2 Qxe5 9. 0-0 Be7 10. Rf5 Qc7 11. e5 d5 12. Bb5+ Nd7 13. Nf3 0-0 14. Bf4 Qb6 15. Bd3 Nc5 16. Rh5 g6 17. Ng5 Nxd3 18. Qxd3 Bg4 19. Rh6 Qxb2 20. Re1 Qc3 21. Qxc3 dxc3 22. Nxh7 Rfe8 23. Be3 Bf5 24. e6 fxe6 25. Bd4 Rec8 26. g4 Be4 27. Rf1 Bxc2 28. Ng5 e5 29. Bxe5 Bc5+ 30. Kg2 1-0

