[Event "corr"]
[Site "corr"]
[Date "1986.??.??"]
[Round "?"]
[White "Brancic, Aleksandar"]
[Black "Lees, David"]
[Result "0-1"]
[ECO "D03"]
[PlyCount "18"]
[EventDate "1986.??.??"]
[EventType "team (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. Bg5 Ne4 4. Nbd2 Nxg5 5. Nxg5 e5 6. Ngf3 e4 7. Ng1 Bd6 8. c4 e3 9. Ndf3 Bb4+ 0-1

[Event "Manchester Benedictine op 5th"]
[Site "Manchester"]
[Date "1982.??.??"]
[Round "1"]
[White "Forintos, Gyozo Victor"]
[Black "Lees, David"]
[Result "1-0"]
[ECO "E38"]
[WhiteElo "2410"]
[PlyCount "55"]
[EventDate "1982.09.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Na6 6. a3 Bxc3+ 7. Qxc3 Nxc5 8. b4 Nce4 9. Qd4 d5 10. c5 h6 11. f3 Ng5 12. h4 e5 13. Qxe5+ Ne6 14. e3 0-0 15. Bb2 a5 16. Ne2 Re8 17. Qd6 Bd7 18. Rc1 axb4 19. axb4 d4 20. Bxd4 Ra3 21. Nc3 Nxd4 22. Qxd4 Qb8 23. Kf2 Rb3 24. Bc4 Rb2+ 25. Ne2 Rxb4 26. Bxf7+ Kxf7 27. Qxb4 Rxe3 28. Nd4 1-0

[Event "Manchester Benedictine op 5th"]
[Site "Manchester"]
[Date "1982.??.??"]
[Round "2"]
[White "Lees, David"]
[Black "Lee, Graham D"]
[Result "0-1"]
[ECO "A30"]
[BlackElo "2355"]
[PlyCount "58"]
[EventDate "1982.09.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 c5 6. 0-0 d6 7. b3 Be7 8. Bb2 0-0 9. d4 cxd4 10. Qxd4 a6 11. Rac1 Qc7 12. Rfd1 Nbd7 13. h3 Rfd8 14. Ng5 Bxg2 15. Kxg2 Qb7+ 16. f3 b5 17. Nce4 h6 18. Nxe6 fxe6 19. Nxd6 Qb6 20. Qf4 e5 21. Qf5 Bxd6 22. Qe6+ Kh8 23. Rxd6 Qe3 24. Kf1 Ne4 25. fxe4 Rf8+ 26. Ke1 Rf2 27. Rd2 Rf1+ 28. Kxf1 Rf8+ 29. Kg2 Rf2+ 0-1

[Event "Manchester Benedictine op 3rd"]
[Site "Manchester"]
[Date "1980.??.??"]
[Round "2"]
[White "Lees, David"]
[Black "Strauss, David J"]
[Result "0-1"]
[ECO "D34"]
[BlackElo "2335"]
[PlyCount "68"]
[EventDate "1980.09.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c5 3. g3 cxd4 4. Bg2 Nf6 5. 0-0 Nc6 6. Nxd4 e6 7. c4 Be7 8. Nc3 0-0 9. cxd5 exd5 10. b3 Re8 11. Bb2 Bf8 12. Rc1 Bg4 13. Rc2 Rc8 14. Nxc6 bxc6 15. Rd2 Qa5 16. Qc1 h6 17. e3 Nh7 18. Rd4 Be6 19. Rfd1 f5 20. Ra4 Qc7 21. Ba3 Nf6 22. Bxf8 Rxf8 23. Qa3 Rf7 24. Ne2 Ne4 25. Nd4 Nc3 26. Nxe6 Qe7 27. Nc5 Nxd1 28. b4 f4 29. gxf4 Rxf4 30. Nd3 Rg4 31. Qc1 Rxg2+ 32. Kxg2 Qe4+ 33. Kg1 Qxd3 34. Ra3 Qe2 0-1

[Event "British CF-64 Championship"]
[Site "Brighton/ East Sussex"]
[Date "1977.08.19"]
[Round "11"]
[White "Bennett, Terence B"]
[Black "Lees, David"]
[Result "1-0"]
[ECO "A45"]
[PlyCount "87"]
[EventDate "1977.08.08"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GBR"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 c5 3. Bxf6 gxf6 4. d5 d6 5. Nd2 Bg7 6. e3 f5 7. c3 0-0 8. Nh3 e5 9. Be2 Qh4 10. Qc2 f4 11. exf4 Bxh3 12. gxh3 Qxf4 13. Ne4 f5 14. Nxd6 e4 15. Nc4 Nd7 16. Qd2 Qh4 17. Rg1 Kh8 18. Qg5 Bf6 19. Qxh4 Bxh4 20. Kf1 b5 21. Nd6 a6 22. Nb7 c4 23. a4 Ne5 24. Nc5 Nd3 25. Ne6 Rg8 26. Rxg8+ Rxg8 27. Bxd3 cxd3 28. axb5 f4 29. bxa6 e3 30. Nxf4 Bxf2 31. Ng2 Rf8 32. Nxe3 Bxe3+ 33. Kg2 d2 34. d6 Rd8 35. Kf3 Ba7 36. Ke2 Rxd6 37. Rd1 Rxa6 38. Rxd2 Kg7 39. Kf3 Kf6 40. Ke4 Ke6 41. Rg2 Ra4+ 42. b4 Bc5 43. Kd3 Bd6 44. Kc4 1-0

[Event "British CF-64 Championship"]
[Site "Brighton/ East Sussex"]
[Date "1977.08.18"]
[Round "10"]
[White "Lees, David"]
[Black "Haygarth, Michael J"]
[Result "0-1"]
[ECO "C16"]
[BlackElo "2365"]
[PlyCount "70"]
[EventDate "1977.08.08"]
[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 e6 2. d4 d5 3. Nc3 Bb4 4. e5 b6 5. Nf3 Ne7 6. Bd3 Qd7 7. 0-0 Bxc3 8. bxc3 Ba6 9. Bxa6 Nxa6 10. Qd3 Qa4 11. Bg5 c5 12. Rac1 Rc8 13. Rfd1 h6 14. Bxe7 Kxe7 15. Ne1 Qa3 16. Qg3 Kf8 17. Rb1 c4 18. f4 Rc6 19. h4 h5 20. Qe3 g6 21. Nf3 Kg7 22. Ng5 Nc7 23. Qd2 Ra8 24. Re1 a5 25. Re3 Qxa2 26. Rbe1 Qa3 27. Rg3 Rh8 28. Rf1 Qf8 29. Nxf7 Kxf7 30. Rxg6 Kxg6 31. f5+ exf5 32. Qg5+ Kf7 33. Rxf5+ Ke8 34. e6 Rxe6 35. Rf1 Qe7 0-1

[Event "British CF-64 Championship"]
[Site "Brighton/ East Sussex"]
[Date "1977.08.17"]
[Round "9"]
[White "Baker, Chris W"]
[Black "Lees, David"]
[Result "0-1"]
[ECO "A50"]
[PlyCount "68"]
[EventDate "1977.08.08"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GBR"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. 0-0 g6 5. d4 Bg7 6. c4 0-0 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 d6 10. Be3 Nd7 11. Rfd1 Qe8 12. h3 e5 13. Kh2 f5 14. dxe5 Nxe5 15. c5 Nxf3+ 16. exf3 dxc5 17. Bxc5 bxc5 18. Qb3+ Qf7 19. Qxb7 f4 20. Rd3 c4 21. Rd5 Rab8 22. Qc6 Rb2 23. Rf1 fxg3+ 24. fxg3 Re8 25. Rd7 Ree2 26. Rg1 Qe6 27. Rd8+ Bf8 28. Qc5 Qf7 29. f4 Rbd2 30. Rc8 Kg7 31. Qc6 Bd6 32. a4 Kh6 33. Kh1 Qe6 34. g4 Qxc8 0-1

[Event "British CF-64 Championship"]
[Site "Brighton/ East Sussex"]
[Date "1977.08.16"]
[Round "8"]
[White "Lees, David"]
[Black "Morley, Andrew J"]
[Result "1/2-1/2"]
[ECO "C17"]
[PlyCount "65"]
[EventDate "1977.08.08"]
[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 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 Ne7 6. Nf3 Bxc3 7. Bxc3 b6 8. b4 Qc7 9. Be2 Nbc6 10. bxc5 bxc5 11. 0-0 cxd4 12. Bxd4 0-0 13. c3 f6 14. exf6 gxf6 15. Be3 Nf5 16. Bc1 Nce7 17. Rb1 Qxc3 18. Qa4 Qc7 19. g4 Nd6 20. Bh6 Bd7 21. Qa3 Rfb8 22. Rxb8+ Qxb8 23. Bd3 e5 24. Rb1 Qc7 25. Rc1 Nc6 26. Qc5 Nf7 27. Qxd5 Qd6 28. Bc4 Qxd5 29. Bxd5 Rc8 30. Be3 Nb4 31. Rxc8+ Bxc8 32. Bb3 Bxg4 33. Nd2 1/2-1/2

[Event "British CF-64 Championship"]
[Site "Brighton/ East Sussex"]
[Date "1977.08.15"]
[Round "7"]
[White "Webb, Richard M"]
[Black "Lees, David"]
[Result "0-1"]
[ECO "C57"]
[PlyCount "40"]
[EventDate "1977.08.08"]
[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 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nd4 6. c3 b5 7. Bf1 Nxd5 8. Ne4 Qh4 9. Ng3 Bg4 10. f3 Nf5 11. Bxb5+ Kd8 12. 0-0 Bc5+ 13. d4 exd4 14. Ne4 Nfe3 15. Qb3 Bb6 16. fxg4 h5 17. cxd4 Bxd4 18. Bxe3 Nxe3 19. Qd3 c5 20. Rf3 Qe1+ 0-1

[Event "British CF-64 Championship"]
[Site "Brighton/ East Sussex"]
[Date "1977.08.13"]
[Round "6"]
[White "Giulian, Philip Maurice"]
[Black "Lees, David"]
[Result "1/2-1/2"]
[ECO "E12"]
[PlyCount "129"]
[EventDate "1977.08.08"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GBR"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Bg5 h6 5. Bh4 Bb7 6. Nc3 Be7 7. e3 Ne4 8. Bxe7 Qxe7 9. Qc2 Nxc3 10. Qxc3 d6 11. Be2 Nd7 12. 0-0 0-0 13. b4 c5 14. bxc5 dxc5 15. Rfd1 cxd4 16. Rxd4 e5 17. Rd2 Rfe8 18. Rad1 Nc5 19. Qc2 Be4 20. Qb2 Bc6 21. Rc1 g6 22. Rdd1 Kh7 23. Ne1 f5 24. Nd3 Ba4 25. Re1 Nxd3 26. Bxd3 Rad8 27. Bc2 Bc6 28. Bd1 Rd7 29. Be2 f4 30. Bg4 Qg5 31. f3 Rde7 32. e4 Rd8 33. c5 b5 34. Bh3 Ree8 35. Red1 Qe7 36. Qb4 Rxd1+ 37. Rxd1 Rd8 38. Rd6 a5 39. Qd2 Rxd6 40. Qxd6 Qb7 41. Qxe5 Qg7 42. Qxf4 Qd4+ 43. Kf1 Qc4+ 44. Ke1 Qb4+ 45. Qd2 Qxc5 46. Qxa5 Be8 47. Qd2 Bf7 48. g3 Qa3 49. Kf2 b4 50. e5 Bxa2 51. e6 Qa7+ 52. Kg2 b3 53. Qd7+ Qxd7 54. exd7 b2 55. d8Q b1Q 56. Qe7+ Kh8 57. Qf6+ Kh7 58. Qe7+ Kh8 59. Be6 Bxe6 60. Qxe6 Kg7 61. Qe7+ Kg8 62. Qf6 Qd3 63. Kh3 Qd7+ 64. g4 Kh7 65. Kg3 1/2-1/2

[Event "British CF-64 Championship"]
[Site "Brighton/ East Sussex"]
[Date "1977.08.12"]
[Round "5"]
[White "Lees, David"]
[Black "Pickard, Charles W"]
[Result "1/2-1/2"]
[ECO "B47"]
[PlyCount "36"]
[EventDate "1977.08.08"]
[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 c5 2. Nf3 Nc6 3. Nc3 e6 4. d4 cxd4 5. Nxd4 Qc7 6. g3 a6 7. Bg2 Nf6 8. 0-0 Be7 9. Kh1 0-0 10. f4 d6 11. Nf3 Bd7 12. Qe2 Rac8 13. a4 Na5 14. e5 Ne8 15. exd6 Nxd6 16. Ne5 Bc6 17. Nxc6 Nxc6 18. Be3 Nf5 1/2-1/2

[Event "British CF-64 Championship"]
[Site "Brighton/ East Sussex"]
[Date "1977.08.11"]
[Round "4"]
[White "Benjamin, Nicholas R"]
[Black "Lees, David"]
[Result "1-0"]
[ECO "E15"]
[PlyCount "77"]
[EventDate "1977.08.08"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GBR"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Qc2 c5 6. Bg2 Nc6 7. dxc5 Bxc5 8. a3 Rc8 9. Qa4 Bb7 10. b4 Bxf2+ 11. Kxf2 Ng4+ 12. Ke1 Qf6 13. Ra2 Nd4 14. Rd2 Rxc4 15. Bb2 e5 16. Qxa7 Bxf3 17. Bxf3 0-0 18. Bxd4 Rc1+ 19. Rd1 Rxd1+ 20. Kxd1 exd4 21. Bxg4 Qg6 22. Nd2 Qxg4 23. Qb7 d3 24. Qf3 dxe2+ 25. Qxe2 Qd4 26. Qf3 Re8 27. Qb3 Qa1+ 28. Qb1 Qxa3 29. Rf1 Qa4+ 30. Qb3 Qa1+ 31. Kc2 Rc8+ 32. Kd3 Qa6+ 33. b5 Qa8 34. Rxf7 d5 35. Rd7 Rc5 36. Ne4 Qe8 37. Nxc5 Qg6+ 38. Kd2 Qg5+ 39. Qe3 1-0

[Event "British CF-64 Championship"]
[Site "Brighton/ East Sussex"]
[Date "1977.08.10"]
[Round "3"]
[White "Lees, David"]
[Black "Reid, Alan"]
[Result "1/2-1/2"]
[ECO "C47"]
[PlyCount "71"]
[EventDate "1977.08.08"]
[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 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nd5 Be7 6. Nxd4 Nxd5 7. exd5 Nxd4 8. Qxd4 0-0 9. Be2 d6 10. Qd3 Bd7 11. 0-0 Bf6 12. c3 Re8 13. Be3 Bg5 14. Bd4 Bf6 15. Be3 Bg5 16. Bd4 Bf6 17. Rae1 Bxd4 18. Qxd4 Qg5 19. f4 Qe7 20. Bg4 Qd8 21. Bf3 a6 22. Rxe8+ Qxe8 23. h3 Qe7 24. Kh2 Re8 25. Rf2 Qe3 26. Qxe3 Rxe3 27. Re2 Rxe2 28. Bxe2 a5 29. Kg3 Kf8 30. Kf3 c5 31. Ke4 Ke7 32. c4 Kf6 33. Bg4 Bxg4 34. hxg4 g6 35. g5+ Ke7 36. a4 1/2-1/2

[Event "British CF-64 Championship"]
[Site "Brighton/ East Sussex"]
[Date "1977.08.09"]
[Round "2"]
[White "Lees, David"]
[Black "Short, Nigel D"]
[Result "0-1"]
[ECO "C17"]
[PlyCount "42"]
[EventDate "1977.08.08"]
[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 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 Ne7 6. Nf3 Nbc6 7. dxc5 Ng6 8. Bb5 Bxc5 9. h4 f6 10. Na4 Be7 11. exf6 Bxf6 12. h5 Nge7 13. Qe2 0-0 14. 0-0-0 a6 15. Bd3 e5 16. Bg5 Qa5 17. Bxh7+ Kxh7 18. h6 Qxa4 19. hxg7+ Kxg7 20. Kb1 Bf5 21. b3 Qe4 0-1

[Event "British CF-64 Championship"]
[Site "Brighton/ East Sussex"]
[Date "1977.08.08"]
[Round "1"]
[White "Taulbut, Shaun M"]
[Black "Lees, David"]
[Result "1-0"]
[ECO "B13"]
[PlyCount "63"]
[EventDate "1977.08.08"]
[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. Bd3 Nc6 5. c3 g6 6. Nf3 Bf5 7. Bxf5 gxf5 8. Qd3 e6 9. 0-0 Bh6 10. Bxh6 Nxh6 11. c4 dxc4 12. Qxc4 0-0 13. Nc3 Rc8 14. d5 Ne5 15. Qf4 Nxf3+ 16. Qxf3 Kh8 17. Rfe1 Qb6 18. Qe2 Rg8 19. dxe6 fxe6 20. Qe5+ Rg7 21. Qxe6 Rcg8 22. g3 Qxb2 23. Qb3 Qxb3 24. axb3 a6 25. Nd5 Rd8 26. Nf4 Rd2 27. h3 Nf7 28. Nh5 Rg8 29. Re7 Rf8 30. Rc1 f4 31. Nxf4 Ng5 32. Rcc7 1-0

[Event "Chorley"]
[Site "Chorley"]
[Date "1977.??.??"]
[Round "6"]
[White "Corden, Martyn J"]
[Black "Lees, David"]
[Result "1/2-1/2"]
[ECO "C56"]
[WhiteElo "2300"]
[PlyCount "41"]
[EventDate "1977.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Nxe4 Be6 10. Bd2 Qd5 11. Bg5 Bd6 12. c3 0-0 13. cxd4 Bg4 14. Re3 Rfe8 15. Nc3 Qf5 16. Bh4 Qh5 17. Bg3 Rxe3 18. fxe3 Bxg3 19. hxg3 Re8 20. Kf2 Nb4 21. Qa4 1/2-1/2

[Event "Chorley"]
[Site "Chorley"]
[Date "1977.??.??"]
[Round "4"]
[White "Davies, Nigel Rodney"]
[Black "Lees, David"]
[Result "1/2-1/2"]
[ECO "B13"]
[PlyCount "114"]
[EventDate "1977.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 g6 6. Bf4 Bg7 7. Nd2 Nf6 8. h3 0-0 9. Ngf3 Nd7 10. 0-0 e5 11. dxe5 Ndxe5 12. Nxe5 Nxe5 13. Nf3 Nxd3 14. Qxd3 Qb6 15. Qd2 Be6 16. Bh6 a5 17. Rfe1 Rfe8 18. Bxg7 Kxg7 19. Re2 f6 20. Rae1 Bf7 21. Nd4 Rxe2 22. Rxe2 Re8 23. Rxe8 Bxe8 24. Qe3 Kf7 25. Qd2 Qd6 26. Nf3 Kg7 27. Qd4 Bf7 28. Qa7 b6 29. Nd4 Kg8 30. Qa8+ Kg7 31. Qb7 Kg8 32. Qc8+ Kg7 33. Qg4 Kf8 34. a4 h5 35. Qe2 Qe5 36. Qxe5 fxe5 37. Nf3 d4 38. cxd4 exd4 39. Nxd4 Ke7 40. f4 Kd6 41. Kf2 Kc5 42. Ke3 Bd5 43. g4 hxg4 44. hxg4 Kb4 45. b3 Kc3 46. f5 gxf5 47. gxf5 Bg2 48. Nb5+ Kxb3 49. Nc7 Bf1 50. Kd4 Be2 51. Nd5 Bh5 52. Nxb6 Kb4 53. Kd5 Bd1 54. f6 Bb3+ 55. Kd6 Bf7 56. Ke7 Bg8 57. Kd6 Bf7 1/2-1/2

[Event "Chorley"]
[Site "Chorley"]
[Date "1977.??.??"]
[Round "8"]
[White "Ivell, Nicholas W"]
[Black "Lees, David"]
[Result "1-0"]
[ECO "C12"]
[PlyCount "67"]
[EventDate "1977.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 e6 4. e4 Bb4 5. e5 h6 6. Bd2 Bxc3 7. bxc3 Ne4 8. Qg4 g6 9. Nf3 c5 10. Bd3 Nxd2 11. Kxd2 Qc7 12. h4 Nc6 13. Qf4 f5 14. g4 Bd7 15. gxf5 gxf5 16. Rhg1 0-0-0 17. dxc5 Rdg8 18. Rae1 Nd8 19. Rxg8 Rxg8 20. Qxh6 Qxc5 21. Qe3 Qa5 22. h5 Nf7 23. h6 Nh8 24. h7 Rg7 25. Qh6 Rg6 26. Qe3 b6 27. Rg1 Qc5 28. Qxc5+ bxc5 29. Rxg6 Nxg6 30. Ng5 Nh8 31. Be2 Be8 32. Nxe6 Bg6 33. Nxc5 Bxh7 34. Ke3 1-0

[Event "Chorley"]
[Site "Chorley"]
[Date "1977.??.??"]
[Round "3"]
[White "Lees, David"]
[Black "Burton, Colin"]
[Result "0-1"]
[ECO "B30"]
[PlyCount "56"]
[EventDate "1977.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. e5 Nxb5 6. exf6 Nd4 7. Nxd4 cxd4 8. fxe7 Bxe7 9. Nd5 0-0 10. 0-0 Bd6 11. d3 b6 12. Qg4 Be5 13. Bf4 d6 14. Qg3 Bb7 15. c4 Bxd5 16. cxd5 Re8 17. Rfe1 Qf6 18. Bxe5 dxe5 19. Rac1 Qd6 20. Qf3 Rad8 21. Rc6 Qxd5 22. Qxd5 Rxd5 23. Rc7 Ra5 24. f4 f6 25. a3 Rb5 26. Rxa7 Rxb2 27. Rc1 exf4 28. Rcc7 Re1# 0-1

[Event "Chorley"]
[Site "Chorley"]
[Date "1977.??.??"]
[Round "7"]
[White "Lees, David"]
[Black "Horner, Jeff"]
[Result "0-1"]
[ECO "C41"]
[BlackElo "2395"]
[PlyCount "76"]
[EventDate "1977.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Qe7 3. Nc3 c6 4. d4 d6 5. Be2 Nf6 6. 0-0 Bg4 7. dxe5 dxe5 8. Nd2 Bxe2 9. Qxe2 Nbd7 10. Nc4 b5 11. Ne3 g6 12. a4 b4 13. Ncd1 Bg7 14. Nc4 0-0 15. Bg5 Nc5 16. f3 Ne6 17. Be3 Nd7 18. Nf2 f5 19. Nd3 a5 20. Rfe1 fxe4 21. fxe4 Nf4 22. Qd2 Qe6 23. Nb6 Rad8 24. Nxd7 Qxd7 25. Bb6 Rb8 26. Bc5 Rf7 27. Rad1 Qg4 28. Nxf4 exf4 29. e5 f3 30. e6 Rf5 31. h3 Qg3 32. Qf2 Qxg2+ 33. Qxg2 fxg2 34. e7 Re8 35. Bf2 Kf7 36. Kxg2 Bxb2 37. Rd7 Bf6 38. Rc7 Rxf2+ 0-1

[Event "Chorley"]
[Site "Chorley"]
[Date "1977.??.??"]
[Round "1"]
[White "Lees, David"]
[Black "Knox, Victor W"]
[Result "0-1"]
[ECO "B06"]
[PlyCount "62"]
[EventDate "1977.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 d6 2. d4 Bg4 3. e4 g6 4. Be2 Bg7 5. 0-0 Nf6 6. Nfd2 Bxe2 7. Qxe2 0-0 8. e5 Nfd7 9. Nf3 c5 10. e6 fxe6 11. Qxe6+ Kh8 12. Ng5 cxd4 13. Qh3 Nf6 14. Ne6 Qc8 15. Nxf8 Qxh3 16. Nxg6+ hxg6 17. gxh3 Nc6 18. c3 Nd5 19. cxd4 Nxd4 20. Nc3 Nxc3 21. bxc3 Ne2+ 22. Kg2 Bxc3 23. Rb1 b6 24. Bb2 Kg7 25. Kf3 Nd4+ 26. Ke4 Bxb2 27. Rxb2 Nf5 28. f4 Rc8 29. Kd3 Rc5 30. a4 Rd5+ 31. Kc3 Ne3 0-1

[Event "Chorley"]
[Site "Chorley"]
[Date "1977.??.??"]
[Round "5"]
[White "Lees, David"]
[Black "Mooney, David P"]
[Result "1/2-1/2"]
[ECO "C47"]
[PlyCount "46"]
[EventDate "1977.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nd5 Nxe4 6. Bc4 Be7 7. 0-0 0-0 8. Nxd4 Nf6 9. Nxe7+ Qxe7 10. Bg5 d6 11. Re1 Qd8 12. Nxc6 bxc6 13. Qf3 d5 14. Bd3 h6 15. Bxf6 Qxf6 16. Qxf6 gxf6 17. Re7 Be6 18. Rxc7 Rfc8 19. Rxc8+ Rxc8 20. Kf1 Rb8 21. b3 c5 22. c3 Kf8 23. Ke1 Ke7 1/2-1/2

[Event "Chorley"]
[Site "Chorley"]
[Date "1977.??.??"]
[Round "2"]
[White "Littlewood, John Eric"]
[Black "Lees, David"]
[Result "1-0"]
[ECO "A02"]
[WhiteElo "2350"]
[PlyCount "79"]
[EventDate "1977.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. f4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. d3 Nc6 7. e4 Bg4 8. h3 Bxf3 9. Bxf3 Nd7 10. c3 e6 11. Be3 Nb6 12. Nd2 d5 13. Bf2 dxe4 14. dxe4 e5 15. Qe2 exf4 16. gxf4 Re8 17. Bg3 Qe7 18. Rae1 Rad8 19. Qg2 Na5 20. e5 Nac4 21. Ne4 Nd5 22. Qf2 Qf8 23. b3 Ncb6 24. Kh2 h6 25. Rg1 Kh8 26. Rg2 Ne7 27. Bh4 Nbd5 28. Bd1 Nf5 29. Bxd8 Rxd8 30. Bc2 Qe7 31. Kh1 b6 32. Rgg1 a5 33. Re2 h5 34. Ng3 Nxg3+ 35. Qxg3 Bh6 36. f5 Bf4 37. Qf3 Qh4 38. fxg6 fxg6 39. Rxg6 Ne7 40. Re6 1-0

[Event "Chorley"]
[Site "Chorley"]
[Date "1977.??.??"]
[Round "9"]
[White "Ludgate, Alan Templeton"]
[Black "Lees, David"]
[Result "1/2-1/2"]
[ECO "A26"]
[WhiteElo "2225"]
[PlyCount "45"]
[EventDate "1977.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 Nc6 6. 0-0 d6 7. d3 e5 8. Rb1 a5 9. a3 Nh5 10. b4 axb4 11. axb4 f5 12. b5 Ne7 13. Qc2 f4 14. Ne4 Bf5 15. Bb2 Qd7 16. Ra1 fxg3 17. hxg3 Bxe4 18. Rxa8 Rxa8 19. dxe4 Bh6 20. Qb3 Qe6 21. Nh2 Nc8 22. Qc2 Nb6 23. c5 1/2-1/2

[Event "British CF-57 Championship"]
[Site "Coventry/ West Midlands"]
[Date "1970.08.20"]
[Round "10"]
[White "Lees, David"]
[Black "Farooqui, Zahiruddin"]
[Result "0-1"]
[ECO "C47"]
[PlyCount "76"]
[EventDate "1970.08.10"]
[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 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 cxd5 9. 0-0 0-0 10. Bg5 c6 11. Qf3 Be7 12. h3 Be6 13. Rad1 Nd7 14. Bxe7 Qxe7 15. Rfe1 Qf6 16. Qxf6 Nxf6 17. Ne2 Rfe8 18. Nf4 a5 19. Kf1 a4 20. Rb1 Kf8 21. c4 d4 22. Re5 Nd7 23. Nxe6+ fxe6 24. Rh5 h6 25. b4 axb3 26. axb3 Ra3 27. Bg6 Rb8 28. b4 Rc3 29. c5 Ke7 30. Rh4 Rc4 31. Re1 Rbxb4 32. Bf5 Nxc5 33. Bxe6 Nxe6 34. Rhe4 d3 35. Rxe6+ Kd7 36. R6e3 Rd4 37. Rd1 Rb3 38. Rc1 c5 0-1

[Event "British CF-57 Championship"]
[Site "Coventry/ West Midlands"]
[Date "1970.08.19"]
[Round "9"]
[White "Anderton, David William"]
[Black "Lees, David"]
[Result "1-0"]
[ECO "E56"]
[PlyCount "65"]
[EventDate "1970.08.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GBR"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 c5 6. Nf3 d5 7. 0-0 Nc6 8. a3 Ba5 9. Ne2 cxd4 10. exd4 dxc4 11. Bxc4 Bc7 12. Bg5 h6 13. Bh4 e5 14. dxe5 Nxe5 15. Nxe5 Bxe5 16. f4 Bd6 17. Qb3 Bc5+ 18. Kh1 Qb6 19. Qxb6 Bxb6 20. Nc3 Bf5 21. Bxf6 gxf6 22. Nd5 Bd8 23. Rae1 Rc8 24. b3 Rxc4 25. bxc4 Bd3 26. Rf3 Bxc4 27. Ne3 Bd3 28. Ng4 Ba5 29. Nxf6+ Kg7 30. Ne8+ Kh8 31. Re5 Bc3 32. Re7 Bb5 33. Rxc3 1-0

[Event "British CF-57 Championship"]
[Site "Coventry/ West Midlands"]
[Date "1970.08.18"]
[Round "8"]
[White "Lees, David"]
[Black "Reuben, Stewart"]
[Result "1/2-1/2"]
[ECO "B34"]
[PlyCount "134"]
[EventDate "1970.08.10"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Nxc6 bxc6 8. e5 Ng8 9. Bd4 c5 10. Bxc5 Qc7 11. Bd4 Bxe5 12. f4 Bxd4 13. Qxd4 Nf6 14. 0-0-0 0-0 15. Bc4 Bb7 16. Rhe1 d5 17. Bb3 Rfd8 18. Rd3 Rd7 19. f5 Qxh2 20. fxg6 hxg6 21. Rh3 Qxg2 22. Qh4 Nh5 23. Ne2 e5 24. Ng3 Qf2 25. Nxh5 Qxh4 26. Rxh4 gxh5 27. Rxe5 f6 28. Rexh5 Rad8 29. Rh8+ Kg7 30. R4h7+ Kg6 31. Rxd8 Rxh7 32. Bxd5 f5 33. Bxb7 Rxb7 34. b3 Rf7 35. Kd2 Kg5 36. Ke3 Kf6 37. Ra8 Re7+ 38. Kf2 Ke5 39. c4 Rd7 40. Ke3 f4+ 41. Ke2 Rh7 42. Re8+ Kf5 43. c5 Rh2+ 44. Kd3 Rh7 45. Kd4 Rd7+ 46. Kc4 Rb7 47. Kd5 f3 48. Re1 Rd7+ 49. Kc6 Rd2 50. a4 Rb2 51. Kd7 Rxb3 52. c6 Rd3+ 53. Kc8 Kf4 54. c7 f2 55. Re8 Rf3 56. Rf8+ Ke4 57. Rxf3 Kxf3 58. Kb8 f1Q 59. c8Q Kg3 60. Qc3+ Kg4 61. Qd4+ Kg5 62. Qd5+ Kh4 63. Qd4+ Kh5 64. Kxa7 Qf7+ 65. Kb6 Qe6+ 66. Kb5 Qe8+ 67. Kb4 Qe1+ 1/2-1/2

[Event "British CF-57 Championship"]
[Site "Coventry/ West Midlands"]
[Date "1970.08.17"]
[Round "7"]
[White "Eley, Brian Ratcliffe"]
[Black "Lees, David"]
[Result "1/2-1/2"]
[ECO "B39"]
[PlyCount "40"]
[EventDate "1970.08.10"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4 8. Qxg4 Nxd4 9. Qd1 e5 10. Qd2 0-0 11. 0-0-0 d6 12. Ne2 f5 13. Nxd4 exd4 14. Bxd4 fxe4 15. Bxg7 Kxg7 16. c5 Be6 17. Bc4 Bxc4 18. Qd4+ Qf6 19. Qxc4 Rac8 20. Kb1 Rxc5 1/2-1/2

[Event "British CF-57 Championship"]
[Site "Coventry/ West Midlands"]
[Date "1970.08.15"]
[Round "6"]
[White "Lees, David"]
[Black "Ripley, John M"]
[Result "1/2-1/2"]
[ECO "B02"]
[PlyCount "51"]
[EventDate "1970.08.10"]
[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 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 Nxc3 7. dxc3 Nc6 8. Bf4 Bxc5 9. Qg4 g5 10. Bxg5 Rg8 11. Bxd8 Rxg4 12. Be2 Rxg2 13. Bxc7 b6 14. Nh3 Bb7 15. Bf3 Rg8 16. 0-0-0 Rc8 17. Bd6 Bxd6 18. exd6 Na5 19. Rhg1 Rxg1 20. Rxg1 Kf8 21. Ng5 Kg7 22. b4 Bxf3 23. bxa5 Kf6 24. axb6 axb6 25. Nxh7+ Ke5 26. Rg7 1/2-1/2

[Event "British CF-57 Championship"]
[Site "Coventry/ West Midlands"]
[Date "1970.08.14"]
[Round "5"]
[White "Doye, Peter C"]
[Black "Lees, David"]
[Result "1/2-1/2"]
[ECO "E59"]
[PlyCount "81"]
[EventDate "1970.08.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GBR"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 d5 6. Nf3 c5 7. 0-0 Nc6 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 Qc7 11. Bb5 a6 12. Bd3 e5 13. Nxe5 Nxe5 14. dxe5 Qxe5 15. Qc2 Rd8 16. e4 c4 17. Bxc4 Ng4 18. g3 Qh5 19. h4 Ne5 20. Be2 Bg4 21. Re1 Bxe2 22. Rxe2 Qg4 23. Kg2 Rd6 24. Re3 Rad8 25. Qe2 Qxe2 26. Rxe2 Nc4 27. Rc2 Rd1 28. Raa2 Re1 29. Bf4 Rxe4 30. f3 Rxf4 31. gxf4 Ne3+ 32. Kf2 Nxc2 33. Rxc2 f6 34. Ke3 Kf7 35. Rb2 b5 36. a4 bxa4 37. Ra2 Rc8 38. Kd4 Ke6 39. Rxa4 Kf5 40. Kd3 Rc6 41. h5 1/2-1/2

[Event "British CF-57 Championship"]
[Site "Coventry/ West Midlands"]
[Date "1970.08.13"]
[Round "4"]
[White "Lees, David"]
[Black "Sutton, John Anthony"]
[Result "1-0"]
[ECO "B55"]
[PlyCount "61"]
[EventDate "1970.08.10"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Bb5+ Bd7 6. c4 e5 7. Nf5 Nxe4 8. Qd5 Bxb5 9. cxb5 Qc7 10. 0-0 Nf6 11. Qf3 Nbd7 12. Nc3 h5 13. Bg5 g6 14. Ne3 Bg7 15. Ned5 Nxd5 16. Nxd5 Qb8 17. Rac1 0-0 18. Nc7 Nc5 19. Nxa8 e4 20. Qe2 Qxa8 21. Be7 Re8 22. Bxd6 Nd3 23. Rc4 Qd8 24. Bc7 Qd5 25. b3 f5 26. b6 f4 27. Rd1 Bd4 28. Rxd3 Bxf2+ 29. Kxf2 Qxd3 30. Qxd3 exd3 31. bxa7 1-0

[Event "British CF-57 Championship"]
[Site "Coventry/ West Midlands"]
[Date "1970.08.12"]
[Round "3"]
[White "Bailey, Richard"]
[Black "Lees, David"]
[Result "1-0"]
[ECO "E05"]
[PlyCount "55"]
[EventDate "1970.08.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GBR"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Nbd7 6. 0-0 Be7 7. Nbd2 Nb6 8. Qc2 Bd7 9. Ne5 c6 10. Ndxc4 0-0 11. Rd1 Nxc4 12. Nxc4 Be8 13. a3 Nd7 14. b4 f6 15. Bh3 Bf7 16. Bf4 Re8 17. Na5 Qb6 18. e4 Bd8 19. Nc4 Qb5 20. d5 cxd5 21. Nd6 Qc6 22. Qxc6 bxc6 23. Nxe8 g5 24. Bd6 Bxe8 25. Bxe6+ Kg7 26. exd5 cxd5 27. Bxd5 Rc8 28. Rac1 1-0

[Event "British CF-57 Championship"]
[Site "Coventry/ West Midlands"]
[Date "1970.08.11"]
[Round "2"]
[White "Lees, David"]
[Black "Haygarth, Michael J"]
[Result "1/2-1/2"]
[ECO "C17"]
[PlyCount "43"]
[EventDate "1970.08.10"]
[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 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 Ne7 6. Nf3 Nf5 7. a3 Bxc3 8. bxc3 Nc6 9. Bd3 cxd4 10. cxd4 0-0 11. 0-0 f6 12. exf6 Qxf6 13. Bg5 Qf7 14. Ne5 Nxe5 15. dxe5 Bd7 16. Rb1 b6 17. Rb4 Rac8 18. Bd2 Qe8 19. Re1 Ba4 20. Rf4 Rf7 21. Qb1 b5 22. c3 1/2-1/2

[Event "British CF-57 Championship"]
[Site "Coventry/ West Midlands"]
[Date "1970.08.10"]
[Round "1"]
[White "Fuller, Maxwell L"]
[Black "Lees, David"]
[Result "1-0"]
[ECO "B33"]
[PlyCount "61"]
[EventDate "1970.08.10"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 h6 7. Nd6+ Bxd6 8. Qxd6 Qe7 9. Qxe7+ Kxe7 10. b3 d6 11. Ba3 Nd4 12. 0-0-0 Rd8 13. f4 Ke8 14. Rxd4 exd4 15. Nb5 Nxe4 16. Nc7+ Kd7 17. Nxa8 Kc6 18. Bb2 Nc3 19. a4 Bf5 20. Bxc3 dxc3 21. Bb5+ Kc5 22. Nc7 Be4 23. Re1 Bxg2 24. Re8 Rxe8 25. Bxe8 f5 26. Nb5 g5 27. Nxc3 gxf4 28. Kd2 Be4 29. Nd1 d5 30. Nf2 Kb4 31. Nd3+ 1-0

[Event "British CF-56 Championship"]
[Site "Rhyl/ Denbighshire"]
[Date "1969.08.22"]
[Round "11"]
[White "De Veauce, Louis"]
[Black "Lees, David"]
[Result "0-1"]
[ECO "E18"]
[PlyCount "68"]
[EventDate "1969.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Be7 7. 0-0 0-0 8. Nc3 d5 9. cxd5 exd5 10. Bg5 Nbd7 11. Ne5 c6 12. Bxf6 Bxf6 13. Nxd7 Qxd7 14. Rc1 Rfe8 15. Qd3 Rad8 16. Rfd1 g6 17. e3 Kg7 18. b4 b5 19. Nb1 Be7 20. Qc3 a5 21. bxa5 b4 22. Qb2 Ra8 23. Nd2 Rxa5 24. Nb3 Ra4 25. Nc5 Bxc5 26. dxc5+ f6 27. e4 Rea8 28. exd5 cxd5 29. Bxd5 Bxd5 30. Qb3 Bxb3 31. Rxd7+ Bf7 32. c6 Rc8 33. Rb7 Rxa2 34. Rxb4 Ra6 0-1

[Event "British CF-56 Championship"]
[Site "Rhyl/ Denbighshire"]
[Date "1969.08.21"]
[Round "10"]
[White "Lees, David"]
[Black "Hempson, Peter W"]
[Result "0-1"]
[ECO "E01"]
[PlyCount "64"]
[EventDate "1969.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 c6 5. Bg2 Nbd7 6. b3 Ne4 7. 0-0 f5 8. Nfd2 Nxd2 9. Nxd2 Bd6 10. Bb2 0-0 11. e3 Nf6 12. f3 Bd7 13. e4 dxe4 14. fxe4 Ng4 15. Qe2 Nxh2 16. Kxh2 Qh4+ 17. Kg1 Bxg3 18. Rf3 Qh2+ 19. Kf1 e5 20. Ba3 f4 21. Bxf8 Bh3 22. Rxg3 fxg3 23. Ke1 Rxf8 24. Nf1 Qxg2 25. Qxg2 Bxg2 26. Nxg3 Rf3 27. d5 Rxg3 28. Kf2 Rg6 29. Rd1 Bh3 30. d6 Bd7 31. c5 Rf6+ 32. Ke3 h5 0-1

[Event "British CF-56 Championship"]
[Site "Rhyl/ Denbighshire"]
[Date "1969.08.20"]
[Round "9"]
[White "Bellin, Robert"]
[Black "Lees, David"]
[Result "1/2-1/2"]
[ECO "B33"]
[PlyCount "50"]
[EventDate "1969.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 h6 7. Nd6+ Bxd6 8. Qxd6 Qe7 9. Qxe7+ Kxe7 10. b3 Nd4 11. Bd3 d6 12. Bb2 Bd7 13. Nd5+ Nxd5 14. exd5 Rhc8 15. c3 Nb5 16. c4 Nc7 17. 0-0 b5 18. f4 f6 19. fxe5 fxe5 20. Rae1 bxc4 21. Bxc4 Rf8 22. Ba3 Rxf1+ 23. Bxf1 Nxd5 24. Rxe5+ Be6 25. Bc4 Nc7 1/2-1/2

[Event "British CF-56 Championship"]
[Site "Rhyl/ Denbighshire"]
[Date "1969.08.19"]
[Round "8"]
[White "Lees, David"]
[Black "Cafferty, Bernard"]
[Result "0-1"]
[ECO "E39"]
[PlyCount "80"]
[EventDate "1969.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. Nf3 c5 6. dxc5 Na6 7. e3 Nxc5 8. Bd2 b6 9. Be2 Bb7 10. 0-0 Nfe4 11. Nxe4 Bxe4 12. Qd1 Bxd2 13. Qxd2 Qe7 14. Rfd1 Rfd8 15. Qb4 d6 16. Ne1 Rac8 17. Rac1 Qb7 18. Bf3 h6 19. Rd4 Bxf3 20. Nxf3 Qa6 21. a3 Nb7 22. h3 Rc6 23. Rg4 Qa5 24. Qxa5 Nxa5 25. Nd4 Rcc8 26. Nb5 a6 27. Nd4 d5 28. b3 Kh7 29. a4 g6 30. Rb1 dxc4 31. b4 Nc6 32. Nxc6 Rxc6 33. b5 axb5 34. axb5 Rc5 35. Rc1 c3 36. Kf1 Rd2 37. Ke1 Rb2 38. Rd4 Rbxb5 39. Rc2 Rb1+ 40. Ke2 b5 0-1

[Event "British CF-56 Championship"]
[Site "Rhyl/ Denbighshire"]
[Date "1969.08.18"]
[Round "7"]
[White "Oliff, Keith M"]
[Black "Lees, David"]
[Result "1/2-1/2"]
[ECO "A08"]
[PlyCount "52"]
[EventDate "1969.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d3 Nf6 4. Nbd2 d5 5. g3 Bg4 6. h3 Bxf3 7. Qxf3 g6 8. Bg2 Bg7 9. 0-0 0-0 10. exd5 Nd4 11. Qd1 Nxd5 12. c3 Ne6 13. Qf3 Ndc7 14. Nb3 b6 15. Rd1 Qd7 16. Be3 Rad8 17. d4 cxd4 18. Nxd4 Nxd4 19. Bxd4 Bxd4 20. Rxd4 Qb5 21. Rb4 Qc5 22. Qb7 Rd2 23. Rf1 b5 24. Rd4 Rxb2 25. Rd7 Ne6 26. Qxa7 Qxc3 1/2-1/2

[Event "British CF-56 Championship"]
[Site "Rhyl/ Denbighshire"]
[Date "1969.08.16"]
[Round "6"]
[White "Clarke, Peter Hugh"]
[Black "Lees, David"]
[Result "1/2-1/2"]
[ECO "D37"]
[PlyCount "44"]
[EventDate "1969.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 0-0 6. Bf4 Bxc5 7. e3 d5 8. Rd1 Nc6 9. Nf3 Qe7 10. a3 Rd8 11. Bg5 dxc4 12. Rxd8+ Qxd8 13. Bxc4 h6 14. Bh4 Be7 15. 0-0 a6 16. b4 b5 17. Rd1 Qb6 18. Be2 Bb7 19. h3 Rd8 20. Rd2 Rc8 21. Qb3 Ba8 22. Rd1 Qb7 1/2-1/2

[Event "British CF-56 Championship"]
[Site "Rhyl/ Denbighshire"]
[Date "1969.08.15"]
[Round "5"]
[White "Lees, David"]
[Black "Lancaster, Roger"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "67"]
[EventDate "1969.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 g6 2. d4 d6 3. Nc3 Nf6 4. Be2 Bg7 5. h4 c5 6. d5 h5 7. Bg5 Qa5 8. Qd2 Nbd7 9. Nf3 Rb8 10. 0-0 b5 11. a3 Ng4 12. Rfe1 a6 13. Bd3 c4 14. Bf1 Nc5 15. e5 dxe5 16. Nd4 Rb7 17. Nc6 Qb6 18. Be2 f6 19. Bxg4 hxg4 20. Be3 Bd7 21. Qe2 Bf5 22. a4 b4 23. a5 Qc7 24. Bxc5 bxc3 25. bxc3 Rxh4 26. Qxc4 Bd7 27. d6 Qxc6 28. Qg8+ Bf8 29. dxe7 Qxg2+ 30. Kxg2 Bc6+ 31. f3 Bxf3+ 32. Kf2 Rxe7 33. Rab1 Rh2+ 34. Ke3 1-0

[Event "British CF-56 Championship"]
[Site "Rhyl/ Denbighshire"]
[Date "1969.08.14"]
[Round "4"]
[White "Saverymuttu, Seth"]
[Black "Lees, David"]
[Result "1-0"]
[ECO "B30"]
[PlyCount "73"]
[EventDate "1969.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. b4 cxb4 4. d4 e6 5. d5 Qf6 6. c3 Ne5 7. Nd4 exd5 8. Nb5 Bc5 9. f4 Kd8 10. Qxd5 d6 11. Nd4 Nd7 12. Nb3 Ne7 13. Qd2 Nc6 14. Bb2 Bb6 15. cxb4 Qe7 16. Nc3 Nf6 17. 0-0-0 Bg4 18. Qxd6+ Qxd6 19. Rxd6+ Ke7 20. e5 Ne8 21. b5 Na5 22. Nd5+ Kf8 23. Nxb6 Nxb3+ 24. axb3 axb6 25. Rxb6 Rc8+ 26. Kb1 Bf5+ 27. Ka2 Rc7 28. Ba3+ Kg8 29. Bc4 h5 30. Rd1 Kh7 31. Rd8 Be4 32. g3 g6 33. e6 f5 34. e7 Ng7 35. Rxh8+ Kxh8 36. Rxg6 Rc8 37. Rh6# 1-0

[Event "British CF-56 Championship"]
[Site "Rhyl/ Denbighshire"]
[Date "1969.08.13"]
[Round "3"]
[White "Lees, David"]
[Black "Thomas, Ronald"]
[Result "1/2-1/2"]
[ECO "D77"]
[PlyCount "45"]
[EventDate "1969.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 d5 4. g3 Bg7 5. Bg2 0-0 6. 0-0 e6 7. Nc3 b6 8. b3 Bb7 9. Ba3 Re8 10. Rc1 a6 11. Ne5 Nbd7 12. e3 Ne4 13. Nxe4 dxe4 14. Nxd7 Qxd7 15. Qc2 f5 16. c5 Bd5 17. Rfd1 b5 18. c6 Qf7 19. Qe2 g5 20. f3 Qh5 21. Rf1 e5 22. dxe5 Bxe5 23. Qd1 1/2-1/2

[Event "British CF-56 Championship"]
[Site "Rhyl/ Denbighshire"]
[Date "1969.08.12"]
[Round "2"]
[White "Gavrilovic, Mikhail"]
[Black "Lees, David"]
[Result "0-1"]
[ECO "E53"]
[PlyCount "136"]
[EventDate "1969.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 d5 6. Nf3 c5 7. a3 Bxc3+ 8. bxc3 dxc4 9. Bxc4 Qc7 10. Be2 Nbd7 11. 0-0 e5 12. Bb2 e4 13. Nd2 Re8 14. Re1 Nb6 15. c4 Bd7 16. a4 cxd4 17. Bxd4 Bc6 18. a5 Nbd7 19. Qc2 Ne5 20. h3 Qd7 21. a6 b6 22. c5 b5 23. Reb1 Rab8 24. Qc3 Qf5 25. Bxe5 Rxe5 26. Nb3 b4 27. Nd4 Qg5 28. Rxb4 Rxb4 29. Qxb4 Bd7 30. c6 Bxh3 31. g3 h5 32. c7 h4 33. Qb8+ Re8 34. g4 Bxg4 35. Bxg4 Qxg4+ 36. Kf1 h3 37. Ke1 h2 38. Kd2 Qd7 39. Rc1 Rc8 40. Rh1 Ng4 41. Ke2 Qxc7 42. Qxc7 Rxc7 43. f3 exf3+ 44. Kxf3 Ne5+ 45. Ke4 Nc6 46. Rxh2 Nb4 47. Ke5 Re7+ 48. Kd6 Rxe3 49. Nf5 Rd3+ 50. Kc7 Nxa6+ 51. Kb7 Nc5+ 52. Kxa7 Rb3 53. Rc2 Ne6 54. Ne7+ Kf8 55. Nf5 f6 56. Re2 Nf4 57. Rc2 g5 58. Rc7 Ne6 59. Rd7 Nc5 60. Rc7 Ne6 61. Rd7 Nc5 62. Rc7 Ne4 63. Nd4 Rb4 64. Nf5 g4 65. Rc8+ Kf7 66. Nh6+ Kg7 67. Nxg4 Nd6 68. Rc6 Rxg4 0-1

[Event "British CF-56 Championship"]
[Site "Rhyl/ Denbighshire"]
[Date "1969.08.11"]
[Round "1"]
[White "Lees, David"]
[Black "Green, Barry N"]
[Result "0-1"]
[ECO "B55"]
[PlyCount "38"]
[EventDate "1969.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Ne2 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Bb5+ Bd7 6. c4 Nc6 7. Nc3 g6 8. 0-0 Bg7 9. Nc2 a6 10. Bxc6 Bxc6 11. Re1 0-0 12. Nb4 Rc8 13. Bg5 Qb6 14. Nbd5 Bxd5 15. Nxd5 Nxd5 16. cxd5 Qxb2 17. Bxe7 Qxa1 18. Qxa1 Bxa1 19. Bxf8 Bc3 0-1

[Event "British CF-53 Championship"]
[Site "Sunderland/ Tyne and Wear"]
[Date "1966.08.19"]
[Round "11"]
[White "Lees, David"]
[Black "Ansell, Jeffrey"]
[Result "1-0"]
[ECO "C90"]
[PlyCount "55"]
[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 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Be7 7. Re1 d6 8. c3 0-0 9. d3 Na5 10. Bc2 c5 11. Nbd2 Qc7 12. Nf1 Nc6 13. Bg5 Be6 14. Ne3 Rad8 15. Bb3 c4 16. dxc4 bxc4 17. Bxf6 Bxf6 18. Bxc4 Bxc4 19. Nxc4 d5 20. exd5 Ne7 21. d6 Qxc4 22. dxe7 Rxd1 23. exf8Q+ Kxf8 24. Raxd1 e4 25. Nd2 Qxa2 26. Nxe4 Be5 27. Nc5 f6 28. f4 1-0

[Event "British CF-53 Championship"]
[Site "Sunderland/ Tyne and Wear"]
[Date "1966.08.18"]
[Round "10"]
[White "Lees, David"]
[Black "Green, Barry N"]
[Result "1-0"]
[ECO "C17"]
[PlyCount "91"]
[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 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bc5 7. b4 Bf8 8. Nf3 Nc6 9. Rb1 Bd7 10. Bd3 a6 11. Nbxd4 Nge7 12. Nb3 Ng6 13. Bxg6 hxg6 14. Nc5 Qc7 15. Nxd7 Qxd7 16. 0-0 Be7 17. Qe2 b5 18. a3 Qc7 19. Rb3 Rh5 20. Rc3 Rc8 21. Be3 Qb8 22. g4 Rh8 23. Bc5 Bxc5 24. Rxc5 Kd7 25. Re1 Ne7 26. Rxc8 Nxc8 27. Ng5 f5 28. gxf5 gxf5 29. Kh1 Nb6 30. Rg1 Qe8 31. Qe3 Qh5 32. h3 Nc8 33. a4 Qh4 34. f4 bxa4 35. c4 Ne7 36. Qa7+ Ke8 37. Qa8+ Kd7 38. Qa7+ Ke8 39. Qa8+ Kd7 40. Qb7+ Ke8 41. Qb8+ Kd7 42. Qd6+ Ke8 43. cxd5 Nxd5 44. Qxe6+ Ne7 45. Rd1 Qh5 46. Rd7 1-0

[Event "British CF-53 Championship"]
[Site "Sunderland/ Tyne and Wear"]
[Date "1966.08.17"]
[Round "9"]
[White "Cooke, JR."]
[Black "Lees, David"]
[Result "1-0"]
[ECO "A08"]
[PlyCount "65"]
[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. Nf3 Nf6 2. g3 c5 3. Bg2 g6 4. 0-0 Bg7 5. d3 d5 6. Nbd2 0-0 7. c3 Nc6 8. e4 d4 9. cxd4 cxd4 10. Ne1 Ne8 11. f4 f5 12. e5 Be6 13. Qa4 Bd5 14. Bxd5+ Qxd5 15. Qb3 Nc7 16. Qxd5+ Nxd5 17. Nb3 g5 18. Bd2 gxf4 19. gxf4 Bh6 20. Nc2 Ne3 21. Bxe3 dxe3 22. Rae1 Rac8 23. Ncd4 Kh8 24. Rxe3 Rg8+ 25. Rg3 Nxd4 26. Nxd4 Rxg3+ 27. hxg3 Bf8 28. Rd1 Kg8 29. Rd2 Rc1+ 30. Kg2 e6 31. Nxe6 Bb4 32. Re2 Rd1 33. Nd4 1-0

[Event "British CF-53 Championship"]
[Site "Sunderland/ Tyne and Wear"]
[Date "1966.08.16"]
[Round "8"]
[White "Lees, David"]
[Black "Parr, Frank"]
[Result "1/2-1/2"]
[ECO "A92"]
[PlyCount "32"]
[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. c4 f5 2. g3 Nf6 3. Bg2 e6 4. Nf3 Be7 5. 0-0 0-0 6. d4 d5 7. Nbd2 c6 8. Ne5 Nbd7 9. Nd3 Ne4 10. Qc2 Ndf6 11. Nf3 Bd7 12. Nfe5 Nd6 13. Nc5 Bc8 14. b3 Nf7 15. Ncd3 Nxe5 16. Nxe5 Nd7 1/2-1/2

[Event "British CF-53 Championship"]
[Site "Sunderland/ Tyne and Wear"]
[Date "1966.08.15"]
[Round "7"]
[White "Fazekas, Stefan"]
[Black "Lees, David"]
[Result "0-1"]
[ECO "A30"]
[PlyCount "94"]
[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. Nf3 c5 2. c4 Nc6 3. g3 e6 4. Bg2 d5 5. cxd5 exd5 6. 0-0 d4 7. d3 Nf6 8. Nbd2 Be7 9. Nc4 0-0 10. Nfe5 Nxe5 11. Nxe5 Qc7 12. Nc4 Be6 13. Bf4 Qc8 14. Rc1 Bd5 15. e4 dxe3 16. fxe3 Bxg2 17. Kxg2 Qe6 18. a4 Rad8 19. Ne5 g5 20. Qf3 gxf4 21. gxf4 Kh8 22. Kf2 Bd6 23. Nc4 Ng4+ 24. Kg1 Rg8 25. Kh1 f5 26. Rc2 b6 27. b3 Be7 28. e4 Bf6 29. e5 Be7 30. h3 Qh6 31. Rg2 Rg6 32. Kg1 Rdg8 33. hxg4 Rxg4 34. Ne3 Rxg2+ 35. Nxg2 Bh4 36. Rd1 Bg3 37. d4 Bxf4 38. Kf2 Bg3+ 39. Ke2 cxd4 40. Qxf5 Re8 41. Kd3 Rf8 42. Qg4 Qc6 43. Qxd4 Qe6 44. Kc2 Bxe5 45. Re1 Qc6+ 46. Qc4 Qxg2+ 47. Re2 Qg6+ 0-1

[Event "British CF-53 Championship"]
[Site "Sunderland/ Tyne and Wear"]
[Date "1966.08.13"]
[Round "6"]
[White "Lees, David"]
[Black "Bonner, Gerald"]
[Result "0-1"]
[ECO "D12"]
[PlyCount "52"]
[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. d4 d5 2. c4 Bf5 3. Nc3 e6 4. Nf3 c6 5. e3 Nf6 6. Be2 Nbd7 7. 0-0 Bd6 8. Qb3 Rb8 9. Bd2 h5 10. cxd5 exd5 11. e4 Nxe4 12. Nxe4 Bxe4 13. Ng5 Nf6 14. Rae1 0-0 15. Qh3 Qc8 16. Qh4 Bg6 17. h3 Re8 18. Bd1 Rxe1 19. Rxe1 Qf5 20. Nf3 Re8 21. Rxe8+ Nxe8 22. Qd8 f6 23. Kf1 Qb1 24. Ke1 Kf8 25. Ke2 Bd3+ 26. Ke3 Bf1 0-1

[Event "British CF-53 Championship"]
[Site "Sunderland/ Tyne and Wear"]
[Date "1966.08.12"]
[Round "5"]
[White "Aitken, James Macrae"]
[Black "Lees, David"]
[Result "1/2-1/2"]
[ECO "B77"]
[PlyCount "51"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 0-0 8. Bb3 d6 9. f3 Bd7 10. 0-0 Rc8 11. Qd2 a6 12. Nd5 Nxd5 13. exd5 Na5 14. Kh1 Qc7 15. c3 Nc4 16. Bxc4 Qxc4 17. Nc2 Rfe8 18. Bf2 e5 19. dxe6 Rxe6 20. Nd4 Re5 21. a3 Qd5 22. Rad1 Ba4 23. b3 Bxb3 24. Nxb3 Qxb3 25. Qxd6 Rce8 26. Qb4 1/2-1/2

[Event "British CF-53 Championship"]
[Site "Sunderland/ Tyne and Wear"]
[Date "1966.08.11"]
[Round "4"]
[White "Lees, David"]
[Black "Milner Barry, Philip Stuart"]
[Result "0-1"]
[ECO "D23"]
[PlyCount "36"]
[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. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. Qa4+ c6 5. Qxc4 Bf5 6. g3 e6 7. Bg2 Nbd7 8. 0-0 Be7 9. Nc3 0-0 10. Rd1 Bc2 11. e3 Bxd1 12. Nxd1 c5 13. Nc3 Rc8 14. Qe2 Qb6 15. dxc5 Nxc5 16. e4 Rfd8 17. Ne5 Qa6 18. Qf3 Nd3 0-1

[Event "British CF-53 Championship"]
[Site "Sunderland/ Tyne and Wear"]
[Date "1966.08.10"]
[Round "3"]
[White "Hindle, Owen M"]
[Black "Lees, David"]
[Result "1/2-1/2"]
[ECO "A07"]
[PlyCount "54"]
[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 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 Nc6 5. c3 Bd6 6. g3 0-0 7. Bg2 dxe4 8. dxe4 e5 9. 0-0 a5 10. Qc2 b5 11. Nh4 Rb8 12. Nf5 Ne7 13. Ne3 c5 14. a4 Ng4 15. Nf3 Qc7 16. Rd1 Rd8 17. axb5 Nxe3 18. Bxe3 Rxb5 19. Rd2 Be6 20. Qa4 Rdb8 21. Bf1 Bb3 22. Qa3 R5b6 23. Rxd6 Rxd6 24. Bxc5 Rd7 25. Bh3 Be6 26. Bxe6 fxe6 27. Qxa5 Rxb2 1/2-1/2

[Event "British CF-53 Championship"]
[Site "Sunderland/ Tyne and Wear"]
[Date "1966.08.09"]
[Round "2"]
[White "Lees, David"]
[Black "Coast, Peter"]
[Result "1-0"]
[ECO "C70"]
[PlyCount "61"]
[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 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Na5 6. d4 exd4 7. Qxd4 Nxb3 8. axb3 Bb7 9. 0-0 f6 10. Nc3 d6 11. Nd5 Ne7 12. Nh4 c6 13. Nf4 c5 14. Qd3 g6 15. Ne6 Qd7 16. Nxf8 Rxf8 17. Nf3 0-0-0 18. c4 b4 19. Ne1 Qe6 20. f3 f5 21. exf5 Rxf5 22. Nc2 d5 23. Re1 Re5 24. Bf4 Qf5 25. Qxf5+ Rxf5 26. Bg3 Rf7 27. Ra5 d4 28. Rxc5+ Bc6 29. Nxb4 Kb7 30. Nd3 Nf5 31. Rxc6 1-0

[Event "British CF-53 Championship"]
[Site "Sunderland/ Tyne and Wear"]
[Date "1966.08.08"]
[Round "1"]
[White "Conroy, Mike J"]
[Black "Lees, David"]
[Result "1/2-1/2"]
[ECO "D33"]
[PlyCount "34"]
[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. c4 e6 2. Nc3 c5 3. Nf3 d5 4. cxd5 exd5 5. d4 Nc6 6. g3 c4 7. Bg2 Bb4 8. 0-0 Nge7 9. Ne5 0-0 10. Nxc6 bxc6 11. Na4 Re8 12. Bd2 Bd6 13. b3 Ba6 14. Re1 Rb8 15. Qc2 Bb5 16. bxc4 Bxc4 17. e3 Bb4 1/2-1/2

[Event "Christmas Congress 1965/66-41Challenger"]
[Site "Hastings"]
[Date "1965.12.??"]
[Round "?"]
[White "Hammond, A."]
[Black "Lees, David"]
[Result "1-0"]
[ECO "E29"]
[PlyCount "51"]
[EventDate "1965.12.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. a3 Bxc3+ 6. bxc3 c5 7. Bd3 b6 8. Ne2 Nc6 9. e4 Ne8 10. e5 Ba6 11. Qc2 g6 12. h4 f6 13. h5 f5 14. Bh6 Ng7 15. Qd2 gxh5 16. Ng3 Rf7 17. Nxh5 Nxh5 18. Rxh5 Ne7 19. g4 cxd4 20. cxd4 Rc8 21. Qe2 Qe8 22. Kd2 f4 23. Rah1 f3 24. Qe3 Bxc4 25. Qg5+ Kh8 26. Bg7+ 1-0

[Event "British CF-52 Championship"]
[Site "Hastings/ East Sussex"]
[Date "1965.08.20"]
[Round "11"]
[White "Lees, David"]
[Black "Lee, Peter N"]
[Result "0-1"]
[ECO "E67"]
[PlyCount "98"]
[EventDate "1965.08.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GBR"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 d6 6. 0-0 Nbd7 7. Nc3 e5 8. Qc2 c6 9. Rd1 Re8 10. b3 e4 11. Ng5 e3 12. fxe3 Qe7 13. e4 Nf8 14. e3 Bh6 15. Nf3 Nxe4 16. Nxe4 Qxe4 17. Qxe4 Rxe4 18. Ng5 Re8 19. Ne4 Rd8 20. Nf2 a5 21. e4 Bg7 22. Bb2 c5 23. Rab1 Ne6 24. dxc5 dxc5 25. Rxd8+ Nxd8 26. Bxg7 Kxg7 27. e5 Ra6 28. Bd5 Nc6 29. Re1 Nd4 30. Kg2 b6 31. Nd3 Ra7 32. Nb2 Re7 33. Rf1 Nf5 34. Rf2 h5 35. Re2 Re8 36. Kf2 Nd4 37. Re1 Re7 38. Re3 Nc2 39. Re2 Nb4 40. a3 Na6 41. Re3 Nb8 42. Nd3 Bd7 43. h4 Bf5 44. Be4 Bxe4 45. Rxe4 Nc6 46. Re2 Kf8 47. a4 Ke8 48. Re1 Kd7 49. Ke3 Nxe5 0-1

[Event "British CF-52 Championship"]
[Site "Hastings/ East Sussex"]
[Date "1965.08.19"]
[Round "10"]
[White "Beach, Thomas John"]
[Black "Lees, David"]
[Result "0-1"]
[ECO "B39"]
[PlyCount "70"]
[EventDate "1965.08.09"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4 8. Qxg4 Nxd4 9. Qd1 Ne6 10. Qd2 d6 11. Be2 Bd7 12. 0-0 0-0 13. Rac1 Bc6 14. Nd5 Nc5 15. f3 a5 16. b3 Re8 17. Rfd1 b6 18. Bd4 Bxd4+ 19. Qxd4 e5 20. Qe3 Bxd5 21. cxd5 Ra7 22. Bb5 Rf8 23. a3 a4 24. bxa4 f5 25. Rb1 fxe4 26. fxe4 Rf4 27. Rb4 Qg5 28. Qc3 Raf7 29. Rf1 Nxe4 30. Rxe4 Rxe4 31. Qc8+ Kg7 32. Rxf7+ Kxf7 33. Qe6+ Kg7 34. Qd7+ Kh6 35. Qh3+ Qh4 0-1

[Event "British CF-52 Championship"]
[Site "Hastings/ East Sussex"]
[Date "1965.08.18"]
[Round "9"]
[White "Lees, David"]
[Black "Haygarth, Michael J"]
[Result "1/2-1/2"]
[ECO "E60"]
[PlyCount "31"]
[EventDate "1965.08.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GBR"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 c5 5. Nf3 0-0 6. 0-0 d6 7. dxc5 dxc5 8. Ne5 Qc7 9. Nd3 Be6 10. Qb3 Nc6 11. Nxc5 Bc8 12. e3 Rd8 13. Nc3 Rb8 14. Nd5 Qd6 15. Qb5 Ne5 16. f4 1/2-1/2

[Event "British CF-52 Championship"]
[Site "Hastings/ East Sussex"]
[Date "1965.08.17"]
[Round "8"]
[White "Lees, David"]
[Black "Clarke, Peter Hugh"]
[Result "1/2-1/2"]
[ECO "D78"]
[PlyCount "69"]
[EventDate "1965.08.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GBR"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. Nf3 g6 6. b3 Bg7 7. 0-0 0-0 8. Bb2 b6 9. Qc2 Nbd7 10. Nbd2 Bb7 11. e4 Nxe4 12. Nxe4 dxe4 13. Qxe4 Qc7 14. Ne5 f5 15. Qe2 Nxe5 16. dxe5 c5 17. f4 Rfd8 18. Rad1 Bf8 19. Bxb7 Qxb7 20. Qg2 Qxg2+ 21. Kxg2 Be7 22. h4 Kg7 23. Kf3 Rxd1 24. Rxd1 Rd8 25. Rxd8 Bxd8 26. Bc3 Be7 27. Bd2 Kh6 28. Kg2 Kh5 29. Kh3 h6 30. Bc3 g5 31. hxg5 hxg5 32. Be1 Bf8 33. Bd2 Bh6 34. Be3 gxf4 35. gxf4 1/2-1/2

[Event "British CF-52 Championship"]
[Site "Hastings/ East Sussex"]
[Date "1965.08.16"]
[Round "7"]
[White "Aitken, James Macrae"]
[Black "Lees, David"]
[Result "0-1"]
[ECO "B77"]
[PlyCount "98"]
[EventDate "1965.08.09"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 0-0 8. Bb3 d6 9. f3 Bd7 10. Qd2 Rc8 11. 0-0 a6 12. Nxc6 bxc6 13. Rad1 Qc7 14. Ne2 d5 15. Nc3 dxe4 16. Nxe4 Nd5 17. Bd4 Bf5 18. Bxd5 cxd5 19. Bxg7 Kxg7 20. Nc3 Rfd8 21. g4 d4 22. Ne4 Bxe4 23. fxe4 Qxc2 24. Qf4 f6 25. e5 Rc6 26. Rc1 Qa4 27. Qe4 Rxc1 28. exf6+ exf6 29. Qe7+ Kh6 30. Rxc1 Qd7 31. Qe4 d3 32. Rd1 d2 33. Qf4+ Kg7 34. Kf2 g5 35. Qe3 Qd6 36. Kg2 Rd7 37. b3 Qb4 38. h3 Rd4 39. Qe2 Qd6 40. Qf2 Rd3 41. Qa7+ Kg6 42. Qf2 Qd5+ 43. Kh2 Qe5+ 44. Kg2 Qe4+ 45. Kh2 Rf3 46. Qxd2 Re3 47. Kg1 Rxh3 48. Qg2 Qe3+ 49. Kf1 Rf3+ 0-1

[Event "British CF-52 Championship"]
[Site "Hastings/ East Sussex"]
[Date "1965.08.14"]
[Round "6"]
[White "Lees, David"]
[Black "Lancaster, Roger"]
[Result "1-0"]
[ECO "D74"]
[PlyCount "85"]
[EventDate "1965.08.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GBR"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 g6 2. g3 Bg7 3. Bg2 d5 4. Nf3 Nf6 5. c4 c6 6. 0-0 0-0 7. Nc3 Nbd7 8. cxd5 Nxd5 9. Nxd5 cxd5 10. Bf4 Nb8 11. Ne5 Nc6 12. Rc1 Nxe5 13. Bxe5 Bxe5 14. dxe5 Be6 15. Qa4 Qb6 16. b3 Rac8 17. e3 Rc6 18. Qa3 Re8 19. Rxc6 bxc6 20. Rc1 Kf8 21. Rc5 Rc8 22. Bf1 Rc7 23. Qc1 a6 24. Qc3 Bc8 25. Qd4 Qa7 26. e6 f6 27. Bh3 Qb8 28. e4 Bb7 29. g4 g5 30. e5 Qd8 31. f4 h6 32. Bf1 Kg7 33. b4 Qc8 34. f5 Qa8 35. Rc3 Qc8 36. h4 a5 37. hxg5 hxg5 38. a3 axb4 39. axb4 Ba8 40. Qd2 c5 41. Qh2 Rc6 42. Rh3 Qg8 43. Rh6 1-0

[Event "British CF-52 Championship"]
[Site "Hastings/ East Sussex"]
[Date "1965.08.13"]
[Round "5"]
[White "Mardle, Denis Victor"]
[Black "Lees, David"]
[Result "1/2-1/2"]
[ECO "B35"]
[PlyCount "78"]
[EventDate "1965.08.09"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 0-0 8. f3 Qb6 9. 0-0 Ng4 10. fxg4 Bxd4 11. Bxd4 Qxd4+ 12. Qxd4 Nxd4 13. Rf2 d6 14. Nd5 Nc6 15. Bb5 e6 16. Nf6+ Kg7 17. Rd1 Rd8 18. Rxd6 Rxd6 19. Ne8+ Kf8 20. Nxd6 Ne5 21. g5 a6 22. Bf1 Ke7 23. Rd2 b6 24. Nxc8+ Rxc8 25. Bxa6 Ra8 26. Bb5 Rxa2 27. c4 Ra1+ 28. Kf2 Rc1 29. Kg3 f6 30. gxf6+ Kxf6 31. Rd6 Rb1 32. Rxb6 Rxb2 33. c5 Rb3+ 34. Kf2 Nd3+ 35. Bxd3 Rxd3 36. Rd6 Rc3 37. c6 Ke5 38. Rd7 Rxc6 39. Rxh7 Kxe4 1/2-1/2

[Event "British CF-52 Championship"]
[Site "Hastings/ East Sussex"]
[Date "1965.08.12"]
[Round "4"]
[White "Lees, David"]
[Black "Hardy, Otto H"]
[Result "1/2-1/2"]
[ECO "E67"]
[PlyCount "81"]
[EventDate "1965.08.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GBR"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 d6 5. 0-0 0-0 6. c4 Nbd7 7. Nc3 c6 8. b3 Qa5 9. Bb2 e5 10. Qc2 Nh5 11. Ne4 Qc7 12. c5 d5 13. Nd6 exd4 14. Bxd4 b6 15. b4 bxc5 16. bxc5 Ba6 17. Rfe1 Bxd4 18. Nxd4 Rad8 19. Rac1 Nxc5 20. Nxf7 Qxf7 21. Qxc5 Qxf2+ 22. Kh1 Bc4 23. e3 Rf6 24. Nxc6 g5 25. Ne7+ Kf7 26. Qc7 Nxg3+ 27. Qxg3 Qxg3 28. hxg3 Kxe7 29. e4 Re6 30. exd5 Bxd5 31. Rc7+ Kf6 32. Rxe6+ Bxe6 33. Rxa7 Rd1+ 34. Kh2 Rd2 35. Kg1 Rxa2 36. Rxh7 Ra1+ 37. Kf2 Ra2+ 38. Kg1 Ra1+ 39. Kf2 g4 40. Bc6 Ra2+ 41. Ke3 1/2-1/2

[Event "British CF-52 Championship"]
[Site "Hastings/ East Sussex"]
[Date "1965.08.11"]
[Round "3"]
[White "Hindle, Owen M"]
[Black "Lees, David"]
[Result "1-0"]
[ECO "B35"]
[PlyCount "53"]
[EventDate "1965.08.09"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 0-0 8. Bb3 Ng4 9. Qxg4 Nxd4 10. Qd1 Nxb3 11. axb3 b6 12. Qd2 Bb7 13. h4 d5 14. exd5 Bxc3 15. bxc3 Qxd5 16. Qxd5 Bxd5 17. f3 Rfd8 18. h5 f6 19. hxg6 hxg6 20. Rh4 Bc6 21. Rc4 Rd6 22. Kf2 g5 23. Rd4 Rd7 24. Rxd7 Bxd7 25. Bxb6 Bf5 26. Bxa7 Bxc2 27. b4 1-0

[Event "British CF-52 Championship"]
[Site "Hastings/ East Sussex"]
[Date "1965.08.10"]
[Round "2"]
[White "Lees, David"]
[Black "Pritchard, David Brine"]
[Result "1-0"]
[ECO "E11"]
[PlyCount "57"]
[EventDate "1965.08.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GBR"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 d5 4. c4 Bb4+ 5. Bd2 Bxd2+ 6. Nbxd2 0-0 7. Bg2 Nbd7 8. 0-0 c6 9. Qc2 b6 10. e4 dxe4 11. Nxe4 Nxe4 12. Qxe4 Bb7 13. Rfd1 Qc7 14. Ne5 Nf6 15. Qe3 Rad8 16. Rd3 c5 17. Rad1 Bxg2 18. Kxg2 cxd4 19. Rxd4 Rxd4 20. Qxd4 h6 21. f3 Rc8 22. b4 Kh7 23. b5 Qb7 24. Qd3+ g6 25. Qd4 Rc7 26. Nc6 Rd7 27. Qxf6 Rxd1 28. Ne7 Rd2+ 29. Kh3 1-0

[Event "British CF-52 Championship"]
[Site "Hastings/ East Sussex"]
[Date "1965.08.09"]
[Round "1"]
[White "Penrose, Jonathan"]
[Black "Lees, David"]
[Result "1-0"]
[ECO "B39"]
[PlyCount "59"]
[EventDate "1965.08.09"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4 8. Qxg4 Nxd4 9. Qd1 e5 10. Nb5 0-0 11. Qd2 Qh4 12. Bd3 d5 13. cxd5 Nxb5 14. Bxb5 Qxe4 15. 0-0 Rd8 16. Rfd1 Be6 17. f3 Qf5 18. Bd3 Rxd5 19. Bxf5 Rxd2 20. Rxd2 Bxf5 21. Rc1 b6 22. Rc7 Bf6 23. Bh6 Be6 24. a3 Bf5 25. g4 Be6 26. g5 Bd8 27. Rxa7 Rb8 28. a4 b5 29. a5 b4 30. Rb7 1-0

[Event "British CF-50 Major Open"]
[Site "Bath/ Somerset"]
[Date "1963.08.??"]
[Round "?"]
[White "Seppings, John L"]
[Black "Lees, David"]
[Result "1-0"]
[ECO "B18"]
[PlyCount "41"]
[EventDate "1963.08.12"]
[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. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Bc4 e6 7. N1e2 Nf6 8. 0-0 Bd6 9. f4 h5 10. f5 h4 11. fxg6 hxg3 12. gxf7+ Kf8 13. Nf4 gxh2+ 14. Kh1 Bxf4 15. Bxf4 Na6 16. Qe2 Nc7 17. Rae1 Qd7 18. Bxc7 Qxc7 19. Qxe6 Qd8 20. Rxf6 gxf6 21. Qg4 1-0

[Event "corr"]
[Site "corr"]
[Date "1963.??.??"]
[Round "?"]
[White "Fountain, T."]
[Black "Lees, David"]
[Result "1/2-1/2"]
[ECO "C18"]
[PlyCount "50"]
[EventDate "1963.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Ba5 6. b4 cxd4 7. Qg4 Ne7 8. bxa5 dxc3 9. Qxg7 Rg8 10. Qxh7 Qc7 11. Nf3 Nbc6 12. Bf4 Bd7 13. h4 0-0-0 14. Bg5 Nxe5 15. Bxe7 Nxf3+ 16. gxf3 Qe5+ 17. Kd1 Rg6 18. Bd3 Rh8 19. f4 Qd4 20. Bc5 Qxd3+ 21. cxd3 Ba4+ 22. Ke2 Rxh7 23. Rab1 a6 24. Rb4 Bc6 25. Rc1 Rxh4 1/2-1/2

[Event "British CF-49 Major Open"]
[Site "Whitby/Yorkshire"]
[Date "1962.08.??"]
[Round "?"]
[White "Lees, David"]
[Black "Evans, Wilfred"]
[Result "0-1"]
[ECO "A13"]
[PlyCount "36"]
[EventDate "1962.08.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GBR"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. g3 d5 2. Bg2 e6 3. c4 c6 4. b3 f5 5. Bb2 Nf6 6. Nf3 Bd6 7. Qc2 0-0 8. 0-0 Nbd7 9. cxd5 exd5 10. Nd4 Ne5 11. Nxf5 Bxf5 12. Qxf5 Qe7 13. Nc3 Ne4 14. Qh3 Nxf2 15. Rxf2 Bc5 16. e3 Rxf2 17. Kxf2 Nd3+ 18. Kg1 Bxe3+ 0-1

[Event "British CF-49 Major Open"]
[Site "Whitby/Yorkshire"]
[Date "1962.08.??"]
[Round "?"]
[White "Nicholson, John"]
[Black "Lees, David"]
[Result "1/2-1/2"]
[ECO "E19"]
[PlyCount "69"]
[EventDate "1962.08.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GBR"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 e6 5. 0-0 Be7 6. d4 0-0 7. Nc3 Ne4 8. Qc2 Nxc3 9. bxc3 f5 10. d5 Na6 11. Nd4 Nc5 12. Ba3 g6 13. f4 exd5 14. cxd5 Ne4 15. Bxe7 Qxe7 16. c4 Nxg3 17. hxg3 Qe3+ 18. Rf2 Qxd4 19. Rd1 Qc5 20. e4 fxe4 21. Bxe4 Rf7 22. Kg2 Raf8 23. Rh1 c6 24. Rd2 b5 25. Rh6 Qxc4 26. Bxg6 hxg6 27. Qxg6+ Rg7 28. Qh5 Qe4+ 29. Kf1 Rh7 30. Qg5+ Kh8 31. Rdh2 Qb1+ 32. Kg2 Qe4+ 33. Kf1 Qb1+ 34. Kg2 Qc2+ 35. Kg1 1/2-1/2

[Event "GBR-ch Major op 48th"]
[Site "Aberystwyth"]
[Date "1961.08.23"]
[Round "9"]
[White "Lees, David"]
[Black "Guy, Thomas"]
[Result "0-1"]
[ECO "E87"]
[PlyCount "52"]
[EventDate "1961.08.14"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "WLS"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 e5 6. d5 0-0 7. Be3 Nh5 8. Bd3 f5 9. exf5 gxf5 10. Nge2 Na6 11. Qd2 Nc5 12. Bc2 a5 13. 0-0-0 Bd7 14. Rdg1 a4 15. g4 fxg4 16. fxg4 Nf4 17. Nxf4 exf4 18. Bxf4 a3 19. Bg5 axb2+ 20. Kxb2 Rxa2+ 21. Kxa2 Qa8+ 22. Kb1 Qa5 23. Na2 Qxa2+ 24. Kxa2 Ra8+ 25. Ba4 Rxa4+ 26. Kb1 Ra1+ 0-1

[Event "New Jersey corr"]
[Site "USA"]
[Date "1960.??.??"]
[Round "?"]
[White "Istvan, John"]
[Black "Lees, David"]
[Result "0-1"]
[ECO "C42"]
[PlyCount "46"]
[EventDate "1960.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Bc4 Nxe4 4. d3 Nd6 5. Nxe5 Nxc4 6. Nxc4 d5 7. Ne3 d4 8. Nc4 Be7 9. 0-0 0-0 10. Nbd2 Nc6 11. Ne4 f5 12. Ng3 f4 13. Ne4 Qd5 14. Qf3 Rf5 15. a3 Be6 16. Re1 Raf8 17. b4 b5 18. Nb2 Ne5 19. Qd1 f3 20. g3 Ng4 21. h3 Rh5 22. h4 Rxh4 23. Bf4 Rh1+ 0-1

