[Event "Combined Services-ch"]
[Site "England"]
[Date "2002.??.??"]
[Round "5"]
[White "Jacobs, G."]
[Black "O'Byrne, DL."]
[Result "0-1"]
[ECO "A00"]
[PlyCount "58"]
[EventDate "2002.05.??"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ENG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e3 d5 2. g3 e5 3. Bg2 c6 4. Nh3 h6 5. b3 Be6 6. Ba3 Bxa3 7. Nxa3 Qd7 8. g4 Bxg4 9. Qc1 Bxh3 10. Bf3 e4 11. Be2 Bg2 12. Qb2 f6 13. c4 Bxh1 14. Bf1 Bf3 15. Nc2 Ne7 16. Nd4 Bh5 17. cxd5 Nxd5 18. a4 0-0 19. b4 a6 20. Qb3 Kh8 21. h3 f5 22. Rb1 f4 23. b5 axb5 24. axb5 fxe3 25. dxe3 Qf7 26. Rb2 Ra1+ 27. Kd2 Rxf1 28. Ne2 Qxf2 29. h4 Qxe2# 0-1

[Event "Combined Services-ch"]
[Site "England"]
[Date "2002.??.??"]
[Round "4"]
[White "O'Byrne, DL."]
[Black "Canham, E John"]
[Result "0-1"]
[ECO "B17"]
[PlyCount "72"]
[EventDate "2002.05.??"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ENG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Ne2 h6 8. Nf3 Nb6 9. Bd3 c5 10. c3 a6 11. h3 Be7 12. Be3 c4 13. Bxc4 Nxc4 14. Qa4+ b5 15. Qc2 Bb7 16. Ne5 Rc8 17. Nf4 Nxe3 18. fxe3 Be4 19. Qe2 0-0 20. Rg1 Nd5 21. g3 Qc7 22. a3 Bd6 23. Ng4 Qc4 24. Nxh6+ gxh6 25. Qg4+ Kh7 26. Nxe6 Bg6 27. Nxf8+ Rxf8 28. e4 Nf6 29. Qe2 Nxe4 30. Qxc4 bxc4 31. g4 Bf4 32. Rf1 Bg5 33. Rf3 Rb8 34. Ra2 Bh4+ 35. Ke2 Re8 36. Kd1 Nf2+ 0-1

[Event "Combined Services-ch"]
[Site "England"]
[Date "2002.??.??"]
[Round "2"]
[White "O'Byrne, DL."]
[Black "Hammond, Andrew JC"]
[Result "0-1"]
[ECO "B44"]
[BlackElo "2200"]
[PlyCount "46"]
[EventDate "2002.05.??"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ENG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Be3 a6 6. Be2 Nge7 7. c4 Nxd4 8. Bxd4 Nc6 9. Bc3 Qg5 10. 0-0 b5 11. Qd2 Qxd2 12. Bxd2 Nd4 13. Bd1 bxc4 14. Nc3 Bb7 15. Re1 Bc5 16. Rc1 Rc8 17. Na4 Ba7 18. Be3 0-0 19. b3 cxb3 20. Bxb3 Rxc1 21. Bxc1 Nxb3 22. axb3 Rc8 23. Bf4 Rc2 0-1

[Event "Combined Services-ch"]
[Site "England"]
[Date "2002.??.??"]
[Round "6"]
[White "O'Byrne, DL."]
[Black "O'Neill, Steve"]
[Result "1-0"]
[ECO "B06"]
[PlyCount "61"]
[EventDate "2002.05.??"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ENG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Be3 e6 4. Be2 d5 5. Nc3 Nc6 6. e5 f6 7. f4 fxe5 8. fxe5 Bh6 9. Bxh6 Nxh6 10. Nf3 Nf5 11. Qd2 Nh4 12. 0-0 Rf8 13. Ng5 Rxf1+ 14. Rxf1 Nxd4 15. Nxh7 Nhf5 16. g4 Nxe2+ 17. Nxe2 Qh4 18. Nf6+ Ke7 19. gxf5 gxf5 20. Qf4 Qh8 21. Qg5 Kf7 22. Kh1 b6 23. Rg1 Bb7 24. Nd4 c5 25. Qg6+ Ke7 26. Ng8+ Rxg8 27. Qxe6+ Kf8 28. Qxf5+ Ke7 29. Qe6+ Kd8 30. Rxg8+ Qxg8 31. Qxg8+ 1-0

[Event "Combined Services-ch"]
[Site "England"]
[Date "2002.??.??"]
[Round "1"]
[White "Ross, David C"]
[Black "O'Byrne, DL."]
[Result "0-1"]
[ECO "C01"]
[PlyCount "58"]
[EventDate "2002.05.??"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ENG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. d4 Bd6 5. Bd3 Nf6 6. h3 c6 7. Nbd2 0-0 8. 0-0 b6 9. Ne5 Qc7 10. Ndf3 Ne4 11. c4 f6 12. cxd5 cxd5 13. Ng4 Qf7 14. Nd2 f5 15. Ne3 Be6 16. Nxe4 dxe4 17. Bc2 Rd8 18. f3 Qg6 19. fxe4 fxe4 20. Bb3 Nc6 21. Bxe6+ Qxe6 22. Nf5 Bc5 23. Qg4 Bxd4+ 24. Kh1 Kh8 25. Rd1 Bf6 26. Bg5 Ne5 27. Qf4 Nd3 28. Qg3 Qxf5 29. Rf1 Qxg5 0-1

[Event "Combined Services-ch"]
[Site "England"]
[Date "2002.??.??"]
[Round "7"]
[White "Smith, Brian"]
[Black "O'Byrne, DL."]
[Result "1/2-1/2"]
[ECO "C01"]
[PlyCount "34"]
[EventDate "2002.05.??"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ENG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Bd6 5. Bd3 Nf6 6. Bg5 c6 7. c3 Be6 8. 0-0 Nbd7 9. Nbd2 h6 10. Be3 Ng4 11. Re1 Ndf6 12. h3 Nxe3 13. Rxe3 Bf4 14. Re2 Qc8 15. Bf5 0-0 16. Bxe6 fxe6 17. Ne5 Bxe5 1/2-1/2

[Event "Combined Services-ch"]
[Site "England"]
[Date "2002.??.??"]
[Round "3"]
[White "Wilson, Leon"]
[Black "O'Byrne, DL."]
[Result "1/2-1/2"]
[ECO "A15"]
[PlyCount "77"]
[EventDate "2002.05.??"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ENG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. b4 Bg7 4. Nc3 d6 5. g3 c5 6. b5 a6 7. Bb2 axb5 8. Nxb5 Bd7 9. a4 0-0 10. Bg2 Bc6 11. d3 Re8 12. 0-0 Na6 13. Bc3 Nc7 14. Qc2 b6 15. Rfb1 Nxb5 16. axb5 Bb7 17. Rxa8 Bxa8 18. Ra1 e6 19. Ra7 Re7 20. Qa2 Rxa7 21. Qxa7 Nd7 22. Bxg7 Kxg7 23. Nd2 Bxg2 24. Kxg2 d5 25. Nf3 dxc4 26. dxc4 h6 27. h4 f6 28. e3 Kf7 29. Nd2 Ke7 30. f4 Qb8 31. Qxb8 Nxb8 32. Ne4 Nd7 33. Kf3 e5 34. Nc3 f5 35. e4 Ke6 36. Nd5 exf4 37. gxf4 fxe4+ 38. Kxe4 h5 39. Nc7+ 1/2-1/2

[Event "NATO-ch"]
[Site "Germany"]
[Date "1989.??.??"]
[Round "?"]
[White "Maxia, Giuseppe"]
[Black "O'Byrne, DL."]
[Result "1/2-1/2"]
[ECO "C01"]
[PlyCount "33"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. d4 Bd6 5. Bd3 Nf6 6. 0-0 0-0 7. Bg5 Be6 8. Nbd2 Nbd7 9. Rc1 c6 10. c4 dxc4 11. Nxc4 Bb8 12. a3 h6 13. Bh4 Bf4 14. Ne3 Nb6 15. Bb1 Nbd5 16. Qd3 g6 17. Rc5 1/2-1/2

[Event "NATO-ch"]
[Site "Germany"]
[Date "1989.??.??"]
[Round "?"]
[White "Myrene, Jon Kare"]
[Black "O'Byrne, DL."]
[Result "1/2-1/2"]
[ECO "B56"]
[PlyCount "36"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bb5 Bd7 7. 0-0 a6 8. Nxc6 bxc6 9. Bc4 g6 10. f4 Qb6+ 11. Kh1 Ng4 12. Qf3 Bg7 13. h3 h5 14. Na4 Qa7 15. Bd2 Bd4 16. Rae1 c5 17. b3 Bb5 18. c3 Bxc4 1/2-1/2

[Event "NATO-ch"]
[Site "Germany"]
[Date "1989.??.??"]
[Round "?"]
[White "O'Byrne, DL."]
[Black "Charles, Freddy"]
[Result "1-0"]
[ECO "C10"]
[PlyCount "43"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[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. Nxd4 Bc5 11. Be3 0-0 12. Nxe6 Bxe6 13. Bxc5 Re8 14. 0-0 Qc7 15. Bd4 Ng4 16. f4 Rad8 17. h3 Rxd4 18. cxd4 Ne3 19. Qc1 Bc4 20. Re1 Qxf4 21. Qxc4 Rd8 22. Qc1 1-0

[Event "NATO-ch"]
[Site "Germany"]
[Date "1989.??.??"]
[Round "?"]
[White "O'Byrne, DL."]
[Black "Gooris, Jan"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "62"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Nxf6+ Bxf6 11. Bxf6 Qxf6 12. c3 0-0 13. Nc2 Bb7 14. Bd3 Rad8 15. 0-0 Ne7 16. Ne3 d5 17. exd5 Nxd5 18. Nxd5 Rxd5 19. Qc2 Rfd8 20. Rfd1 g6 21. Be2 Qg5 22. Rxd5 Rxd5 23. Bf1 Rd2 24. Qc1 Qf4 25. Qe1 Rxb2 26. a4 bxa4 27. c4 Bc6 28. Ra3 Rb3 29. Ra2 Rh3 30. f3 Qxh2+ 31. Kf2 Rxf3+ 0-1

[Event "NATO-ch"]
[Site "Germany"]
[Date "1989.??.??"]
[Round "?"]
[White "Werner, Marc"]
[Black "O'Byrne, DL."]
[Result "1-0"]
[ECO "C14"]
[WhiteElo "2350"]
[PlyCount "79"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[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 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4 a6 8. Nf3 c5 9. Qd2 Nc6 10. dxc5 Nxc5 11. 0-0-0 Bd7 12. Qe3 0-0 13. Kb1 b5 14. Rxd5 exd5 15. Nxd5 Qd8 16. Qxc5 Be6 17. Ne3 Rc8 18. Bd3 Qa5 19. a3 Nb8 20. Qe7 Qd8 21. Qb4 Bc4 22. Nxc4 bxc4 23. Bxc4 Nc6 24. Qa4 a5 25. Bd3 Ne7 26. f5 Nd5 27. f6 Re8 28. Qg4 g6 29. Qg5 Re6 30. Bf5 Nc3+ 31. Ka1 Qd5 32. Bxe6 fxe6 33. bxc3 Rxc3 34. Rb1 Rxa3+ 35. Kb2 Ra4 36. Kc1 Rb4 37. Rxb4 axb4 38. Qh6 Qd7 39. Ng5 Qa7 40. f7+ 1-0

[Event "British CF-55 U21"]
[Site "Bristol"]
[Date "1968.08.06"]
[Round "2"]
[White "O'Byrne, DL."]
[Black "Norman, Kenneth I"]
[Result "0-1"]
[ECO "B68"]
[PlyCount "62"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Qd2 Be7 8. f4 Nc6 9. 0-0-0 Bd7 10. Nxc6 Bxc6 11. e5 dxe5 12. Qe3 Nd5 13. Bxe7 Nxe3 14. Rxd8+ Rxd8 15. Bxd8 Kxd8 16. fxe5 Ng4 17. Be2 Nxe5 18. Rg1 Ke7 19. g3 Rd8 20. Rf1 f5 21. Nd1 g5 22. Nf2 g4 23. Nd3 Nxd3+ 24. Bxd3 Kf6 25. Kd2 Bb5 26. Ke3 Bxd3 27. cxd3 Rc8 28. Rf2 Ke5 29. d4+ Kd5 30. Kd3 Rc4 31. Rf4 Rc1 0-1

[Event "British CF-55 U21"]
[Site "Bristol"]
[Date "1968.08.05"]
[Round "1"]
[White "Pelling, Tim W"]
[Black "O'Byrne, DL."]
[Result "1-0"]
[ECO "C16"]
[PlyCount "47"]
[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 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. a3 Bxc3+ 6. bxc3 b6 7. Qg4 Nf5 8. Bd3 h5 9. Qh3 g6 10. Nf3 Ba6 11. Bg5 Qd7 12. Bf6 Rg8 13. Bxa6 Nxa6 14. a4 Qc6 15. Ng5 Nb8 16. Kd2 Nd7 17. Nh7 Nf8 18. Nxf8 Rxf8 19. f3 Qd7 20. g4 hxg4 21. fxg4 Ne7 22. Qf3 Nc8 23. h4 Rg8 24. h5 1-0

[Event "British CF-53 Major open"]
[Site "Sunderland/ Tyne and Wear"]
[Date "1966.08.??"]
[Round "?"]
[White "Jones, JH."]
[Black "O'Byrne, DL."]
[Result "1-0"]
[ECO "B13"]
[PlyCount "29"]
[EventDate "1966.08.08"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GBR"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 dxc4 6. Bxc4 a6 7. Nf3 Nc6 8. 0-0 e6 9. d5 Na5 10. dxe6 Qxd1 11. exf7+ Ke7 12. Rxd1 Nxc4 13. b3 Nb6 14. Ng5 h6 15. Ba3# 1-0

