[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1986.??.??"]
[Round "3"]
[White "Altena, R."]
[Black "Leydes, A."]
[Result "0-1"]
[ECO "C91"]
[PlyCount "70"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 d6 5. Re1 a6 6. Ba4 b5 7. Bb3 Be7 8. c3 0-0 9. d4 Bg4 10. d5 Na5 11. Bc2 c5 12. Nbd2 Rc8 13. b3 Qd7 14. h3 Bh5 15. Nf1 Bg6 16. Ng3 Rfd8 17. Nh4 Kh8 18. Nxg6+ fxg6 19. Bd2 Nb7 20. Qe2 c4 21. b4 Rf8 22. a4 Nd8 23. axb5 axb5 24. Ra6 Nf7 25. Rea1 Rb8 26. Be3 Rb7 27. f4 exf4 28. Bxf4 Ne5 29. Bxe5 dxe5 30. Qe3 Bd6 31. Ra7 Rfb8 32. Nf1 Qd8 33. Nd2 Bc7 34. Nf3 Bb6 35. Qxb6 Qxb6+ 0-1

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1986.??.??"]
[Round "5"]
[White "Bosma, Bartele"]
[Black "Leydes, A."]
[Result "1/2-1/2"]
[ECO "B01"]
[PlyCount "40"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb4 5. a3 N4c6 6. Be3 Bf5 7. Nf3 Nd7 8. Nc3 e6 9. Bd3 Bxd3 10. Qxd3 Be7 11. 0-0 Bf6 12. Rad1 0-0 13. Rfe1 Ne7 14. Ne4 h6 15. Nxf6+ Nxf6 16. Ne5 Nf5 17. Qb3 Nxe3 18. Rxe3 b6 19. Rdd3 Qd6 20. Qd1 a5 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1986.??.??"]
[Round "6"]
[White "De Raad, H."]
[Black "Leydes, A."]
[Result "0-1"]
[ECO "D02"]
[PlyCount "84"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Bg4 3. Nbd2 Nc6 4. g3 e6 5. Bg2 Nf6 6. 0-0 h6 7. b3 Bb4 8. Bb2 0-0 9. a3 Bxd2 10. Nxd2 Ne7 11. f3 Bh5 12. e3 Rc8 13. Qe1 Bg6 14. Qd1 c6 15. Rc1 b5 16. Qe2 Qb6 17. c3 c5 18. c4 bxc4 19. dxc5 Qxc5 20. bxc4 Qb6 21. Bd4 Qa6 22. Rc3 Nc6 23. Re1 e5 24. Bc5 d4 25. Rcc1 Rfd8 26. e4 Nd7 27. Bb4 Nxb4 28. axb4 Qb6 29. Rb1 a5 30. b5 Nc5 31. Ra1 Ra8 32. Bf1 f6 33. Qd1 d3 34. Kg2 a4 35. Ra3 Rd4 36. Qb1 Rad8 37. Rc3 Qb7 38. Re3 Bxe4 39. Nxe4 Nxe4 40. fxe4 Rxe4 41. Rxe4 Qxe4+ 42. Kf2 Qd4+ 0-1

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1986.??.??"]
[Round "2"]
[White "De Waal, Jacobus"]
[Black "Leydes, A."]
[Result "1/2-1/2"]
[ECO "E70"]
[PlyCount "52"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. e4 Bg7 5. Bd3 e5 6. d5 0-0 7. Nge2 Nbd7 8. b4 a5 9. bxa5 Rxa5 10. 0-0 Nc5 11. Bc2 Bd7 12. Bd2 Ra8 13. Be3 Qe7 14. Ng3 Ng4 15. h3 Nxe3 16. fxe3 Qg5 17. Rf3 h5 18. a4 h4 19. Nf1 f5 20. Qe2 fxe4 21. Nxe4 Nxe4 22. Bxe4 Rxf3 23. Qxf3 Rf8 24. Qe2 Bxh3 25. Nd2 Bg4 26. Qd3 h3 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1986.??.??"]
[Round "4"]
[White "Leydes, A."]
[Black "Altena, KJ."]
[Result "1/2-1/2"]
[ECO "C89"]
[PlyCount "48"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Be7 7. Re1 0-0 8. c3 d5 9. exd5 e4 10. dxc6 exf3 11. Qxf3 Bg4 12. Qe3 Re8 13. d4 Bd6 14. Qd2 Bf4 15. Re3 Bxe3 16. fxe3 Ne4 17. Qe1 Qg5 18. Nd2 Nxd2 19. Bxd2 Qg6 20. Qf2 Rad8 21. e4 Re7 22. e5 Be6 23. Qh4 Rde8 24. Bg5 Bxb3 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1986.??.??"]
[Round "7"]
[White "Leydes, A."]
[Black "Welten, Hans"]
[Result "1/2-1/2"]
[ECO "B08"]
[PlyCount "44"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bg5 Bg7 5. Nf3 c6 6. h3 Qc7 7. Bd3 0-0 8. Qd2 Nbd7 9. Ne2 e5 10. c3 b5 11. 0-0 a5 12. Rac1 Nb6 13. c4 bxc4 14. Bb1 Be6 15. Nc3 a4 16. a3 Rfe8 17. dxe5 dxe5 18. Qe2 Nfd7 19. Nd2 Nc5 20. Be3 Nb3 21. Rcd1 Nd4 22. Qe1 Rad8 1/2-1/2

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "1"]
[White "Bosma, Bartele"]
[Black "Leydes, A."]
[Result "1/2-1/2"]
[ECO "B10"]
[PlyCount "67"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. c4 c6 4. Nc3 cxd5 5. cxd5 Nxd5 6. Qb3 Nb6 7. Nf3 Nc6 8. Bb5 Bd7 9. d4 e6 10. Be3 Bb4 11. 0-0 Bxc3 12. bxc3 0-0 13. Bd3 h6 14. c4 Rc8 15. Bd2 Qc7 16. Rac1 Ne7 17. Bb4 Rfe8 18. Ne5 Nc6 19. Nxc6 Qxc6 20. Rfe1 Qa4 21. Qb2 Bc6 22. Rc3 Bd7 23. Ra3 Qc6 24. Rxa7 Nxc4 25. Bxc4 Qxc4 26. Rxb7 Bc6 27. Rb6 Qd5 28. f3 Ba4 29. Bc5 e5 30. Rd6 Qa8 31. Qf2 Qa5 32. Rd5 exd4 33. Rxe8+ Rxe8 34. h3 1/2-1/2

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "5"]
[White "Brugman, Nico"]
[Black "Leydes, A."]
[Result "0-1"]
[ECO "E90"]
[PlyCount "120"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. Nf3 Bg7 5. e4 0-0 6. Bd3 Nbd7 7. 0-0 e5 8. d5 a6 9. Bg5 Re8 10. Rc1 h6 11. Bh4 Nf8 12. h3 N8h7 13. Ne1 Qd7 14. Bxf6 Bxf6 15. f4 exf4 16. Rxf4 Bg5 17. Rf3 Bxc1 18. Qxc1 Kg7 19. Ne2 Ng5 20. Rf4 Qe7 21. h4 Nh7 22. Qe3 Nf6 23. Ng3 Ng4 24. Qd4+ Qe5 25. Nf3 Qxd4+ 26. Nxd4 Ne5 27. Be2 Bd7 28. h5 Re7 29. b4 c5 30. dxc6 bxc6 31. a4 c5 32. bxc5 dxc5 33. Nb3 Rc8 34. a5 Be6 35. Nf5+ Bxf5 36. exf5 Nd7 37. fxg6 fxg6 38. hxg6 Nf6 39. Bd3 Re3 40. Bf5 Rc7 41. Nd2 Rce7 42. Bc8 Kxg6 43. Bxa6 Ra7 44. Bb5 Rxa5 45. Nf3 Ra1+ 46. Kh2 Ra2 47. Kh3 Ra1 48. Kh2 Re4 49. Nh4+ Kg5 50. Rf5+ Kxh4 51. Rxf6 Kg5 52. Rf8 Rh4+ 53. Kg3 Ra3+ 54. Kf2 Rf4+ 55. Rxf4 Kxf4 56. Bc6 Ra2+ 57. Ke1 h5 58. Bd5 h4 59. Bc6 Ke3 60. Bf3 Rc2 0-1

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "6"]
[White "Leydes, A."]
[Black "Ariese, Ruud"]
[Result "1/2-1/2"]
[ECO "B07"]
[PlyCount "53"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bc4 Bg7 5. Nge2 0-0 6. 0-0 Nc6 7. a3 e5 8. f3 Re8 9. Bg5 exd4 10. Nxd4 Ne5 11. Ba2 c6 12. Qd2 Qc7 13. Rae1 Be6 14. Nxe6 fxe6 15. Kh1 Nf7 16. Bf4 Qb6 17. Bb3 d5 18. e5 Nd7 19. Be3 c5 20. Nxd5 exd5 21. Qxd5 Ndxe5 22. f4 Rad8 23. Qxc5 Qxc5 24. Bxc5 Nc6 25. c3 b6 26. Bd6 Bf8 27. Bc7 1/2-1/2

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "4"]
[White "Leydes, A."]
[Black "De Waal, Jacobus"]
[Result "1-0"]
[ECO "B44"]
[PlyCount "58"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb3 Nge7 6. c4 Ng6 7. Nc3 a6 8. Be3 Be7 9. Be2 0-0 10. 0-0 Qc7 11. Rc1 Bd6 12. g3 Qd8 13. Qxd6 f5 14. f4 Rf6 15. e5 Rf8 16. Rfd1 Nh8 17. Bf3 Nf7 18. Qd2 Kh8 19. Na4 Rb8 20. Nb6 Ncxe5 21. fxe5 Nxe5 22. Be2 Qc7 23. Qd6 Qxd6 24. Rxd6 Nf7 25. Bc5 Rd8 26. Rcd1 Ne5 27. Rxe6 d6 28. Rxe5 Bd7 29. Bxd6 Bc6 1-0

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "2"]
[White "Leydes, A."]
[Black "Van der Sluijs, Lothar"]
[Result "0-1"]
[ECO "B08"]
[PlyCount "107"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Nc3 Nf6 5. Be2 0-0 6. h3 Nc6 7. Be3 e5 8. 0-0 Re8 9. dxe5 dxe5 10. Bb5 Bd7 11. Re1 a6 12. Bd3 b5 13. a3 h6 14. Ne2 Be6 15. Qd2 Kh7 16. Qc3 Bd7 17. Rad1 Qb8 18. Ng3 Qb7 19. b4 Be6 20. Nd2 Nd7 21. Nb3 Rac8 22. Nc5 Nxc5 23. Bxc5 Nb8 24. Qd2 Nd7 25. Be3 c5 26. c3 Red8 27. Qb2 Rc6 28. f3 Rdc8 29. Bb1 cxb4 30. cxb4 Nb6 31. Rd3 Nc4 32. Qf2 h5 33. Nf1 Nxe3 34. Nxe3 Rc3 35. Qb2 Rxd3 36. Bxd3 Qc6 37. Rd1 Qc3 38. Qxc3 Rxc3 39. Nd5 Rxa3 40. Nc7 Bc8 41. Bf1 Rc3 42. Nxb5 axb5 43. Bxb5 Be6 44. Bf1 Bf8 45. b5 Bc5+ 46. Kh1 Bc4 47. Bxc4 Rxc4 48. Rb1 Bb6 49. h4 Kg7 50. Kh2 Kf6 51. Rd1 Ke7 52. Kh3 Rc5 53. Rb1 Rc4 54. Rb3 0-1

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "7"]
[White "Poland, Jan"]
[Black "Leydes, A."]
[Result "1/2-1/2"]
[ECO "D60"]
[PlyCount "60"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 Be7 6. e3 0-0 7. Be2 Nbd7 8. 0-0 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. a3 Nxc3 12. bxc3 e5 13. Qe2 e4 14. Nd2 Nf6 15. Bb3 Bf5 16. c4 b6 17. a4 a6 18. Rfc1 Rfc8 19. Ra2 c5 20. Nf1 cxd4 21. exd4 Nd5 22. Ne3 Qg5 23. Qe1 Nf4 24. Bd1 Nxg2 25. Nxg2 Qxc1 26. Ne3 Bg6 27. Rc2 Qa3 28. Nd5 Qd6 29. Rb2 Rab8 30. Be2 b5 1/2-1/2

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1984.??.??"]
[Round "?"]
[White "Leydes, A."]
[Black "Rijksen, H."]
[Result "0-1"]
[ECO "B03"]
[PlyCount "66"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[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. d4 d6 5. Nf3 dxe5 6. Nxe5 N8d7 7. Nxd7 Bxd7 8. Be3 e6 9. Be2 Bb4+ 10. Nd2 0-0 11. 0-0 f5 12. a3 Be7 13. f4 Bf6 14. Rc1 Ba4 15. Nb3 Bxb3 16. Qxb3 Bxd4 17. Rfd1 Bxe3+ 18. Qxe3 Qf6 19. Bf3 Rad8 20. b4 Rxd1+ 21. Bxd1 Rd8 22. Kf1 Nxc4 23. Rxc4 Rxd1+ 24. Ke2 Rd7 25. Rc2 a6 26. Rd2 Rxd2+ 27. Qxd2 Qe7 28. Qd4 Kf7 29. h4 Qd6 30. Qd2 Qd5 31. Kf2 h5 32. Qc3 c6 33. g3 b6 0-1

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1984.??.??"]
[Round "?"]
[White "Leydes, A."]
[Black "Van der Wakker, Peter"]
[Result "1/2-1/2"]
[ECO "C66"]
[PlyCount "93"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[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 Nf6 4. 0-0 d6 5. Re1 Bd7 6. c3 Be7 7. d4 exd4 8. cxd4 0-0 9. h3 h6 10. Nc3 a6 11. Bd3 Nh7 12. Nd5 Kh8 13. Ne3 Ng5 14. e5 Nxf3+ 15. Qxf3 dxe5 16. Nf5 Bf6 17. Qh5 Bg5 18. Bxg5 Qxg5 19. Qxg5 hxg5 20. dxe5 Bxf5 21. Bxf5 Nd4 22. Be4 Rab8 23. Rac1 c6 24. Kf1 Rfe8 25. Rcd1 Ne6 26. b4 Re7 27. g3 Rbe8 28. Rd6 Nf8 29. Bd3 Rxe5 30. Rxe5 Rxe5 31. Rd8 Kg8 32. Rb8 Re7 33. Ra8 g6 34. Ra7 Rd7 35. Ke2 Kg7 36. a4 Kf6 37. b5 cxb5 38. axb5 axb5 39. Bxb5 Re7+ 40. Kf1 Ne6 41. Kg2 b6 42. Ra6 Rb7 43. Bc6 Rb8 44. Ra4 b5 45. Rb4 Rc8 46. Bxb5 Rb8 47. Rb1 1/2-1/2

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1984.??.??"]
[Round "?"]
[White "Leydes, A."]
[Black "Verhagen, Ad"]
[Result "1-0"]
[ECO "B92"]
[PlyCount "65"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[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. Be2 Nbd7 7. Nb3 b5 8. Bf3 Bb7 9. Bf4 Qc7 10. Qd2 e6 11. a3 Be7 12. 0-0-0 Ne5 13. Bxe5 dxe5 14. g4 h6 15. Kb1 Nd7 16. Qe2 Bf6 17. h4 g5 18. hxg5 Bxg5 19. Rd3 Ke7 20. Rhd1 Rhd8 21. Bg2 Rac8 22. f4 Bxf4 23. g5 hxg5 24. Nd5+ exd5 25. exd5 Qd6 26. Nd4 Kf8 27. Nf5 Qf6 28. Qh5 Qxf5 29. Qh8+ Ke7 30. d6+ Ke6 31. Qh6+ f6 32. Bxb7 Rxc2 33. Bd5+ 1-0

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1984.??.??"]
[Round "?"]
[White "Nibbering, S."]
[Black "Leydes, A."]
[Result "0-1"]
[ECO "C34"]
[PlyCount "58"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 d6 4. d4 Nf6 5. Nc3 Be7 6. Bc4 b6 7. 0-0 0-0 8. Bxf4 Nxe4 9. Nd5 c6 10. Nxe7+ Qxe7 11. Re1 d5 12. Bd3 Nd7 13. c4 Bb7 14. Rc1 Rac8 15. Qe2 Kh8 16. Bc2 f5 17. Ne5 Nxe5 18. Bxe5 Rfe8 19. Bxe4 fxe4 20. Qg4 c5 21. Re3 cxd4 22. Bxd4 Rxc4 23. Rxc4 dxc4 24. Rg3 Rg8 25. Rh3 Qf7 26. Qh4 Qg6 27. Rg3 Qd6 28. Bc3 Qd1+ 29. Kf2 Rf8+ 0-1

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1984.??.??"]
[Round "?"]
[White "Plooijer, Johan"]
[Black "Leydes, A."]
[Result "1/2-1/2"]
[ECO "E93"]
[PlyCount "52"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d6 5. e4 Nbd7 6. Bg5 0-0 7. Be2 e5 8. d5 a6 9. Qc2 Qe8 10. 0-0 h6 11. Bd2 Qe7 12. Ne1 Re8 13. Nd3 Nc5 14. Nxc5 dxc5 15. a4 Kh7 16. Rae1 Ng8 17. Bd3 Rf8 18. f4 exf4 19. Bxf4 Be5 20. Bxe5 Qxe5 21. Qf2 b6 22. Kh1 Bd7 23. Re3 Kg7 24. Rf3 f6 25. Qg3 Rae8 26. Qxe5 fxe5 1/2-1/2

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1984.??.??"]
[Round "?"]
[White "Siekerman, Peter"]
[Black "Leydes, A."]
[Result "0-1"]
[ECO "B01"]
[PlyCount "60"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. c4 c6 4. dxc6 Nxc6 5. Nc3 Bf5 6. Nf3 e5 7. a3 Rc8 8. d3 Bd6 9. Bg5 h6 10. Bh4 0-0 11. Be2 Re8 12. 0-0 g5 13. Bg3 Bb8 14. h4 g4 15. Ne1 Nd4 16. Kh1 a6 17. f3 Nh5 18. Kh2 Nxg3 19. Kxg3 e4+ 20. f4 Nxe2+ 21. Qxe2 exd3 22. Qd2 Qd4 23. Nc2 Qxc4 24. Ne3 Qc5 25. Nxf5 Qxf5 26. Rae1 Bc7 27. Re3 Bb6 28. Rxd3 Rcd8 29. Rxd8 Rxd8 30. Qc1 Rd3+ 0-1

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1984.??.??"]
[Round "?"]
[White "Tromp, Andreas"]
[Black "Leydes, A."]
[Result "1/2-1/2"]
[ECO "B01"]
[PlyCount "77"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. c4 c6 4. dxc6 Nxc6 5. d3 e5 6. Bg5 Bc5 7. Be3 Qb6 8. Bxc5 Qxc5 9. f3 Qb4+ 10. Qd2 Qxd2+ 11. Nxd2 Bf5 12. 0-0-0 Nb4 13. a3 Nxd3+ 14. Bxd3 Bxd3 15. Nh3 0-0 16. Nf2 Rad8 17. Rhe1 Rfe8 18. Re3 Bg6 19. g4 h6 20. Rde1 Nd7 21. f4 f6 22. f5 Bf7 23. Nfe4 Nb8 24. b3 b6 25. Nb1 Rd4 26. Nbc3 Red8 27. Nb5 R4d7 28. Kc2 Nc6 29. Kb2 a6 30. Nbc3 Rd4 31. h4 Kf8 32. g5 hxg5 33. hxg5 fxg5 34. Rg3 Rd3 35. Rxg5 Rf3 36. Rh1 Ne7 37. Rh8+ Bg8 38. Rhh5 Bf7 39. Rh8+ 1/2-1/2

