[Event "Guernsey op"]
[Site "Guernsey"]
[Date "1991.??.??"]
[Round "6"]
[White "Roston, O."]
[Black "De Graaff, RAG"]
[Result "1/2-1/2"]
[ECO "C10"]
[PlyCount "61"]
[EventDate "1991.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GCI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Bd3 Nxe4 7. Bxe4 Nf6 8. Bd3 c5 9. c3 cxd4 10. cxd4 Be7 11. 0-0 0-0 12. Qe2 Bd7 13. Bg5 Bc6 14. Rfd1 Bxf3 15. Qxf3 Qd5 16. Qxd5 Nxd5 17. Bxe7 Nxe7 18. Be4 Nd5 19. a4 Rac8 20. Rac1 b6 21. Kf1 Rfd8 22. Bxd5 exd5 23. Ke2 Kf8 24. Ke3 Ke7 25. b3 Kd6 26. f3 h5 27. h4 g6 28. Rxc8 Rxc8 29. Re1 Rc7 30. Kd2 Re7 31. Rxe7 1/2-1/2

[Event "Guernsey op"]
[Site "Guernsey"]
[Date "1991.??.??"]
[Round "1"]
[White "Roston, O."]
[Black "Van der Mark, Arie"]
[Result "1/2-1/2"]
[ECO "C36"]
[PlyCount "59"]
[EventDate "1991.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GCI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 d5 4. exd5 Nf6 5. Nc3 Nxd5 6. Bc4 Nxc3 7. bxc3 Bd6 8. Qe2+ Qe7 9. d4 Qxe2+ 10. Kxe2 0-0 11. Re1 Re8+ 12. Kf2 Rxe1 13. Nxe1 Bf5 14. Bd3 Bxd3 15. Nxd3 Nd7 16. Bxf4 Bxf4 17. Nxf4 Re8 18. Nd5 c6 19. Ne3 Nf6 20. Kf3 g5 21. h3 h5 22. g4 hxg4+ 23. hxg4 Re4 24. Rg1 Kf8 25. Kf2 Ke8 26. Kf3 Kd7 27. Nc4 Rf4+ 28. Ke2 Ke6 29. Ne5 Ne4 30. Nd3 1/2-1/2

[Event "Guernsey op"]
[Site "Guernsey"]
[Date "1991.??.??"]
[Round "5"]
[White "Rowe, DC."]
[Black "Roston, O."]
[Result "0-1"]
[ECO "B00"]
[PlyCount "43"]
[EventDate "1991.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GCI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 b5 2. e4 Bb7 3. f3 a6 4. c4 e6 5. cxb5 axb5 6. Bxb5 Qh4+ 7. g3 Qh5 8. Nc3 Bb4 9. Bd3 c5 10. Be3 Nc6 11. a3 cxd4 12. axb4 dxe3 13. Rxa8+ Bxa8 14. Nb5 Ke7 15. Ke2 Nf6 16. Kxe3 Nxb4 17. Qa4 Qc5+ 18. Kd2 Nxd3 19. Kxd3 Bc6 20. Qa3 Bxb5+ 21. Kd2 Qxa3 22. bxa3 0-1

[Event "Guernsey op"]
[Site "Guernsey"]
[Date "1991.??.??"]
[Round "3"]
[White "Schilstra, BJ."]
[Black "Roston, O."]
[Result "1-0"]
[ECO "A46"]
[PlyCount "49"]
[EventDate "1991.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GCI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 b5 2. Nf3 Bb7 3. e3 a6 4. c4 bxc4 5. Bxc4 e6 6. Nc3 Nf6 7. 0-0 d5 8. Be2 Bd6 9. b3 Nbd7 10. Bb2 0-0 11. Rc1 Rc8 12. Qd2 c5 13. Rc2 Qe7 14. Rfc1 Rc7 15. Na4 Rfc8 16. Qa5 Rc6 17. dxc5 Nxc5 18. Nxc5 Ne4 19. b4 g5 20. Qa4 Bxc5 21. bxc5 g4 22. Ne5 Qh4 23. Nxg4 h5 24. Qd4 e5 25. Qxe5 1-0

