[Event "Hasselt op"]
[Site "Hasselt"]
[Date "1974.07.13"]
[Round "9"]
[White "O'Sullivan, Brian F"]
[Black "Szmetan, Jorge"]
[Result "1-0"]
[ECO "A07"]
[BlackElo "2405"]
[PlyCount "81"]
[EventDate "1974.07.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. 0-0 Bf5 5. d3 e6 6. b3 h6 7. Bb2 Be7 8. Nbd2 0-0 9. e3 a5 10. a3 Bh7 11. Qe2 Qb6 12. Rab1 Nbd7 13. Kh1 Qa6 14. Qe1 Rad8 15. e4 Nc5 16. Ne5 Rfe8 17. f4 Bf8 18. g4 Nfd7 19. Nxd7 Nxd7 20. e5 Qb6 21. Qg3 a4 22. b4 c5 23. bxc5 Qxc5 24. Rfc1 b5 25. Nf3 Rc8 26. Ra1 b4 27. axb4 Qxb4 28. Ba3 Qa5 29. Bxf8 Rxf8 30. Bh3 Nc5 31. f5 g5 32. Bg2 exf5 33. gxf5 Bxf5 34. Nxg5 hxg5 35. Qxg5+ Bg6 36. Bxd5 Qa6 37. Rg1 Ne6 38. Qf6 Rxc2 39. Rxg6+ fxg6 40. Qxg6+ Kh8 41. Qh6+ 1-0

[Event "Hasselt op"]
[Site "Hasselt"]
[Date "1974.07.12"]
[Round "8"]
[White "Kull, Martin"]
[Black "O'Sullivan, Brian F"]
[Result "0-1"]
[ECO "B78"]
[PlyCount "56"]
[EventDate "1974.07.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Bc4 Bd7 9. Qd2 0-0 10. 0-0-0 Rc8 11. Bb3 Ne5 12. h4 Nc4 13. Bxc4 Rxc4 14. h5 Nxh5 15. g4 Nf6 16. Nde2 Qa5 17. Bh6 Bh8 18. Bxf8 Kxf8 19. Rxh7 Nxh7 20. Qh6+ Kg8 21. Nd5 Bg7 22. Qh2 Qxa2 23. Nxe7+ Kh8 24. Rxd6 Qxb2+ 25. Kd2 Rxc2+ 26. Ke3 Bh6+ 27. f4 Rxe2+ 28. Qxe2 Bxf4+ 0-1

[Event "Guardian Islington op"]
[Site "Islington"]
[Date "1973.12.08"]
[Round "2"]
[White "O'Sullivan, Brian F"]
[Black "Saverymuttu, Seth"]
[Result "0-1"]
[ECO "B25"]
[PlyCount "52"]
[EventDate "1973.12.07"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ENG"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. f4 g6 2. g3 Bg7 3. Bg2 c5 4. Nf3 Nc6 5. 0-0 d6 6. d3 e6 7. e4 Nge7 8. Nc3 0-0 9. a3 Rb8 10. Rb1 b5 11. Bd2 c4 12. Be3 cxd3 13. Qxd3 b4 14. Ne2 Qa5 15. Qxd6 Ba6 16. Kf2 Rfd8 17. Qc5 Rb5 18. axb4 Qa2 19. Ra1 Qxb2 20. Qc4 Nxb4 21. Rfb1 Qxa1 22. Rxa1 Bxa1 23. Ned4 Rb7 24. Qb3 Bxd4 25. Nxd4 Rxd4 26. Bxd4 Nd3+ 0-1

[Event "Guardian Islington op"]
[Site "Islington"]
[Date "1973.12.07"]
[Round "1"]
[White "Eley, Brian Ratcliffe"]
[Black "O'Sullivan, Brian F"]
[Result "0-1"]
[ECO "B93"]
[PlyCount "56"]
[EventDate "1973.12.07"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ENG"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4 Nbd7 7. Be2 Bg7 8. 0-0 0-0 9. Kh1 a6 10. Bf3 Nb6 11. g4 e5 12. Nb3 exf4 13. Bxf4 Nc4 14. Rb1 Re8 15. g5 Nd7 16. Be2 b5 17. Nd5 Bb7 18. Bxc4 bxc4 19. Nd2 Nb6 20. Nxb6 Qxb6 21. Qf3 d5 22. Be3 Qe6 23. c3 Rad8 24. Qe2 d4 25. Bxd4 Bxd4 26. cxd4 Rxd4 27. Kg1 Rxd2 28. Qxd2 Qxe4 0-1

[Event "Islington op"]
[Site "Islington"]
[Date "1972.12.17"]
[Round "6"]
[White "O'Sullivan, Brian F"]
[Black "Century, Jonathan"]
[Result "1-0"]
[ECO "A01"]
[PlyCount "87"]
[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. b3 Nf6 2. Bb2 g6 3. g3 Bg7 4. Bg2 d6 5. c4 0-0 6. Nc3 e5 7. e3 Nh5 8. Nge2 f5 9. f4 g5 10. 0-0 c6 11. d4 gxf4 12. gxf4 e4 13. d5 c5 14. Ng3 Nxg3 15. hxg3 Nd7 16. Qe2 Nf6 17. Nd1 Qe8 18. Bh3 Qg6 19. Kh2 Bd7 20. Nf2 h5 21. Rad1 Kf7 22. Bxf6 Bxf6 23. Nxe4 Rg8 24. Rg1 Be7 25. Nd2 Rad8 26. Nf3 Bf6 27. Nh4 Qh7 28. Qd3 Bxh4 29. gxh4 Rg7 30. Rxg7+ Qxg7 31. Rg1 Qf6 32. Rg5 Rg8 33. Qe2 Rxg5 34. hxg5 Qg6 35. Kg3 Be8 36. Kh4 Ke7 37. Qb2 Kd8 38. Qf6+ Kc7 39. Bxf5 Qxf6 40. gxf6 b5 41. Be6 bxc4 42. bxc4 Kb6 43. f7 Bxf7 44. Bxf7 1-0

[Event "Islington op"]
[Site "Islington"]
[Date "1972.12.16"]
[Round "3"]
[White "O'Sullivan, Brian F"]
[Black "Nunn, John DM"]
[Result "1/2-1/2"]
[ECO "A06"]
[PlyCount "73"]
[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. b3 d5 2. Bb2 c5 3. Nf3 Nf6 4. e3 e6 5. Bb5+ Bd7 6. Bxd7+ Nbxd7 7. 0-0 Be7 8. c4 0-0 9. Nc3 dxc4 10. bxc4 Qa5 11. Qb3 Rfd8 12. Rfd1 a6 13. Rab1 Rab8 14. a4 Ne8 15. d3 Nd6 16. Ba1 Rbc8 17. Ne2 Rc6 18. Nf4 Bf6 19. Bxf6 Nxf6 20. Ne5 Rcc8 21. h3 Nd7 22. Nxd7 Rxd7 23. Rb2 Rc6 24. Ne2 Nc8 25. Nc3 Rb6 26. Qc2 Rxb2 27. Qxb2 Ne7 28. d4 cxd4 29. Rxd4 Qc7 30. Ne4 Nf5 31. Rxd7 Qxd7 32. Qb6 h6 33. a5 Qa4 34. Qxb7 Qxc4 35. g4 Nh4 36. Nd6 Qd5 37. Qxd5 1/2-1/2

[Event "Islington op"]
[Site "Islington"]
[Date "1972.12.16"]
[Round "4"]
[White "Van der Weide, Piet"]
[Black "O'Sullivan, Brian F"]
[Result "1-0"]
[ECO "B72"]
[PlyCount "55"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 8. Nb3 0-0 9. f4 Be6 10. g4 Rc8 11. f5 Bxb3 12. axb3 d5 13. exd5 Nb4 14. Bf3 Nfxd5 15. Nxd5 Nxc2+ 16. Kf2 Nxa1 17. f6 exf6 18. Qxa1 Rc2+ 19. Kg3 f5 20. gxf5 Qd6+ 21. Kh3 Qe5 22. Qd1 Rxb2 23. Qd3 Rd8 24. Bg5 Rd6 25. Bh4 gxf5 26. Qc4 h5 27. Bg3 Qe6 28. Re1 1-0

[Event "Bagneux Open-06"]
[Site "Bagneux"]
[Date "1972.07.??"]
[Round "?"]
[White "O'Sullivan, Brian F"]
[Black "Faber, Reinhard"]
[Result "0-1"]
[ECO "A31"]
[PlyCount "38"]
[EventDate "1972.07.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. Nf3 c5 2. d4 Nf6 3. c4 cxd4 4. Nxd4 e5 5. Nc2 d5 6. cxd5 Bc5 7. Nc3 0-0 8. e3 Bf5 9. Bc4 Nbd7 10. Bb3 e4 11. Nd4 Bg4 12. Nde2 Ne5 13. h3 Nd3+ 14. Kf1 Bf5 15. Ng3 Bg6 16. Bc2 Bb4 17. Ngxe4 Nxe4 18. Nxe4 Bxe4 19. f3 Qh4 0-1

[Event "North Devon Congress-01"]
[Site "Barnstaple"]
[Date "1971.10.03"]
[Round "4"]
[White "O'Sullivan, Brian F"]
[Black "Walker, MA."]
[Result "1-0"]
[ECO "B89"]
[PlyCount "51"]
[EventDate "1971.10.01"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. Be3 Na5 9. Qe2 b5 10. 0-0-0 Qc7 11. f3 Nxb3+ 12. axb3 Bb7 13. g4 Be7 14. h4 b4 15. Na4 Nd7 16. g5 Nc5 17. Kb1 Nxa4 18. bxa4 Qa5 19. h5 Qxa4 20. g6 hxg6 21. hxg6 Rxh1 22. Rxh1 Bf6 23. Qc4 d5 24. Qc7 Qd7 25. Rh8+ Ke7 26. Nc6+ 1-0

[Event "North Devon Congress-01"]
[Site "Barnstaple"]
[Date "1971.10.02"]
[Round "3"]
[White "O'Sullivan, Brian F"]
[Black "Waters, Peter John"]
[Result "0-1"]
[ECO "B72"]
[PlyCount "86"]
[EventDate "1971.10.01"]
[EventType "swiss"]
[EventRounds "5"]
[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. Nc3 Bg7 6. Be3 Nf6 7. Bc4 0-0 8. Bb3 d6 9. h3 Bd7 10. 0-0 Nxd4 11. Bxd4 b5 12. Nd5 Nxd5 13. Bxd5 Rc8 14. c3 a5 15. Bxg7 Kxg7 16. Qd4+ f6 17. Rad1 Qc7 18. f4 Qc5 19. a3 e5 20. fxe5 dxe5 21. Qxc5 Rxc5 22. Ba2 Bc6 23. Bd5 Bxd5 24. Rxd5 Rxd5 25. exd5 a4 26. Rd1 Kf7 27. Kf2 Ke7 28. Ke3 Kd6 29. g4 Rf7 30. Rd3 Rc7 31. Ke2 e4 32. Rd1 Rc5 33. Rd4 Rxd5 34. Rxe4 Re5 35. Kf3 Rxe4 36. Kxe4 Kc5 37. Kd3 Kd5 38. h4 Kc5 39. h5 Kd5 40. h6 Kc5 41. Kd2 Kc4 42. Kc2 f5 43. gxf5 gxf5 0-1

[Event "British CF-55 U21"]
[Site "Bristol"]
[Date "1968.08.06"]
[Round "2"]
[White "Kendall, Paul SN"]
[Black "O'Sullivan, Brian F"]
[Result "1-0"]
[ECO "C62"]
[PlyCount "67"]
[EventDate "1968.08.05"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GBR"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 exd4 5. Nxd4 Bd7 6. Bxc6 bxc6 7. c4 c5 8. Nc2 g6 9. 0-0 Bg7 10. Qd3 Ne7 11. Nc3 0-0 12. Be3 f5 13. f3 fxe4 14. fxe4 Rxf1+ 15. Rxf1 Rb8 16. b3 Nc6 17. Qd5+ Kh8 18. Ne2 Qe8 19. Ng3 Ne5 20. Qd2 Qe6 21. Bh6 Nc6 22. Bxg7+ Kxg7 23. Qg5 h6 24. Nh5+ Kh7 25. Nf6+ Kg7 26. Qf4 Ne5 27. Ne3 Qf7 28. Qg3 Qe6 29. Nf5+ Kh8 30. Nxh6 Rf8 31. Nhg8 Rxg8 32. Qh4+ Kg7 33. Qh7+ Kf8 34. Nxd7+ 1-0

