[Event "Southsea"]
[Site "Southsea"]
[Date "1950.??.??"]
[Round "3"]
[White "Golombek, Harry"]
[Black "Derby, Leo"]
[Result "1-0"]
[ECO "A90"]
[PlyCount "149"]
[EventDate "1950.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ENG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Bb4+ 5. Bd2 Be7 6. Nc3 Nc6 7. d5 Ne5 8. Qb3 0-0 9. Nh3 Qe8 10. 0-0 Nfg4 11. Nb5 Bd8 12. f3 Nf6 13. Ba5 c6 14. Nd6 Qe7 15. Bb4 Bb6+ 16. Kh1 c5 17. Nxc8 Raxc8 18. Ba3 exd5 19. cxd5 Qf7 20. Rad1 Rfe8 21. Qc2 Nxd5 22. Rxd5 Qxd5 23. f4 Qc4 24. Qxc4+ Nxc4 25. Bd5+ Kh8 26. Bxc4 d5 27. Bxd5 Rxe2 28. Ng5 h6 29. Nf7+ Kh7 30. Ne5 Rd8 31. Bxb7 g5 32. Ba6 Re4 33. Nc4 gxf4 34. Rxf4 Rxf4 35. gxf4 Rd4 36. Kg2 Rxf4 37. Ne5 Bc7 38. Nf3 Kg6 39. b3 Bd6 40. Bc4 Re4 41. Bb2 a5 42. a4 Bf4 43. Bc3 Bc7 44. h3 Re3 45. Bd2 Re4 46. Kf2 Re8 47. Nh4+ Kf6 48. Ng2 h5 49. Nf4 Bxf4 50. Bxf4 h4 51. Bc7 Ra8 52. Bb6 Ke5 53. Bxc5 Ke4 54. Bb6 f4 55. Bb5 Rc8 56. Bxa5 Rc2+ 57. Ke1 Rh2 58. Bc6+ Kd3 59. Bb6 Re2+ 60. Kf1 Re6 61. Bb5+ Kc3 62. a5 Kxb3 63. a6 Rxb6 64. a7 Rxb5 65. a8Q Rb4 66. Qf3+ Ka4 67. Qd1+ Ka3 68. Kf2 f3 69. Qxf3+ Ka2 70. Qd5+ Ka3 71. Ke2 Rb2+ 72. Kd1 Rb4 73. Kd2 Kb2 74. Qc5 Kb3 75. Kd3 1-0

[Event "Southsea"]
[Site "Southsea"]
[Date "1950.??.??"]
[Round "1"]
[White "Penrose, Jonathan"]
[Black "Derby, Leo"]
[Result "1/2-1/2"]
[ECO "C15"]
[PlyCount "91"]
[EventDate "1950.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ENG"]
[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. Bd3 c5 5. exd5 cxd4 6. a3 Qa5 7. Rb1 dxc3 8. axb4 Qxb4 9. Ne2 exd5 10. 0-0 Nf6 11. Bg5 Nbd7 12. bxc3 Qg4 13. Qc1 0-0 14. f3 Qa4 15. Rb4 Qc6 16. Qd2 Ne5 17. Nd4 Qd6 18. Bf4 Nh5 19. Nb5 Qb8 20. Bxe5 Qxe5 21. Re1 Qb8 22. Re7 Be6 23. Qg5 Nf6 24. Nc7 h6 25. Qg3 Nh5 26. Qh4 Qd8 27. Nxe6 fxe6 28. Rbxb7 Rf7 29. g3 Rxe7 30. Qxe7 Qxe7 31. Rxe7 a5 32. Rxe6 a4 33. Re1 a3 34. c4 d4 35. Kf2 Nf6 36. Ra1 Kf8 37. Ke2 Ra4 38. Kd2 Nd7 39. c3 Ne5 40. cxd4 Nxc4+ 41. Kc3 Nd6 42. d5 Ke7 43. Bc2 Rc4+ 44. Kb3 Rd4 45. Rd1 Nb5 46. Re1+ 1/2-1/2

[Event "British CF-36 Championship"]
[Site "Felixstowe/ Suffolk"]
[Date "1949.08.19"]
[Round "11.10"]
[White "Aitken, James Macrae"]
[Black "Derby, Leo"]
[Result "1/2-1/2"]
[ECO "C18"]
[PlyCount "53"]
[EventDate "1949.08.08"]
[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 c5 5. a3 cxd4 6. axb4 dxc3 7. bxc3 Qc7 8. Nf3 Ne7 9. Bd3 Ng6 10. 0-0 0-0 11. Re1 Nd7 12. Qe2 f6 13. exf6 Rxf6 14. c4 Nf4 15. Bxf4 Qxf4 16. cxd5 exd5 17. c4 Nb6 18. cxd5 Bg4 19. Ra3 Bxf3 20. Qxf3 Qxb4 21. Qe4 Qxa3 22. Qxh7+ Kf7 23. Qh5+ Kg8 24. Qh7+ Kf7 25. Qh5+ Kg8 26. Qh7+ Kf7 27. Qh5+ 1/2-1/2

[Event "British CF-36 Championship"]
[Site "Felixstowe/ Suffolk"]
[Date "1949.08.13"]
[Round "6.11"]
[White "Derby, Leo"]
[Black "Bruce, Ronald Mackay"]
[Result "1-0"]
[ECO "E67"]
[PlyCount "75"]
[EventDate "1949.08.08"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GBR"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. c4 Nbd7 7. Nc3 e5 8. Qc2 c6 9. b3 exd4 10. Nxd4 Qb6 11. Nf3 Nc5 12. Be3 Qb4 13. Rad1 a5 14. Rxd6 Bf5 15. a3 Qxa3 16. Nb1 Qxb3 17. Qc1 Ne6 18. Rdd1 Rfd8 19. Nbd2 Qb4 20. Nh4 Nd4 21. Bxd4 Rxd4 22. Nxf5 gxf5 23. Qc2 a4 24. Nf3 Rxc4 25. Qxf5 a3 26. Rb1 Qc5 27. Ne5 Ra5 28. Qc8+ Bf8 29. Nxc4 Qxc4 30. Qd8 Rf5 31. Rxb7 Kg7 32. Rb8 Bc5 33. Bf3 Bd4 34. Qf8+ Kg6 35. Qxa3 Bc5 36. Qa8 Rg5 37. Qxc6 h5 38. Rg8+ 1-0

[Event "British CF-36 Championship"]
[Site "Felixstowe/ Suffolk"]
[Date "1949.08.11"]
[Round "4.14"]
[White "Penrose, Jonathan"]
[Black "Derby, Leo"]
[Result "1-0"]
[ECO "B02"]
[PlyCount "19"]
[EventDate "1949.08.08"]
[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 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Nc3 Nxc3 6. dxc3 e6 7. Qg4 b6 8. Bg5 Be7 9. Bxe7 Qxe7 10. Qxg7 1-0

[Event "British CF-36 Championship"]
[Site "Felixstowe/ Suffolk"]
[Date "1949.08.08"]
[Round "1.16"]
[White "Fuller, John Arthur"]
[Black "Derby, Leo"]
[Result "1-0"]
[ECO "B02"]
[PlyCount "27"]
[EventDate "1949.08.08"]
[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 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Nc3 Nxc3 6. dxc3 d6 7. Qb3 dxe5 8. Bg5 Be6 9. Qxb7 Nd7 10. 0-0-0 Qc8 11. Qc6 a6 12. Nf3 Ra7 13. Nxe5 f6 14. Bc4 1-0

[Event "British CF-35 First Class A"]
[Site "London (Bishopsgate)"]
[Date "1948.09.??"]
[Round "?"]
[White "Derby, Leo"]
[Black "Cook, Percy B"]
[Result "0-1"]
[ECO "D04"]
[PlyCount "66"]
[EventDate "1948.08.30"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c3 Nbd7 5. Bd3 g6 6. Nbd2 Bg7 7. 0-0 0-0 8. Re1 Re8 9. Ne5 Nxe5 10. dxe5 Nd7 11. f4 Nf8 12. Nf3 Bg4 13. h3 Bxf3 14. Qxf3 e6 15. e4 d4 16. Bb5 Re7 17. cxd4 Qxd4+ 18. Be3 Qb4 19. Qe2 Rc7 20. Rac1 Rd8 21. a3 Qxe4 22. Bxc5 Qxe2 23. Bxe2 Rd2 24. Be3 Rxc1 25. Bxd2 Rxe1+ 26. Bxe1 g5 27. g3 gxf4 28. gxf4 Bh6 29. Bd2 Ng6 30. f5 Bxd2 31. fxg6 hxg6 32. b3 Bc3 33. Kg2 Bxe5 0-1

