[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1992.??.??"]
[Round "?"]
[White "Duijs, Peter"]
[Black "De Haan, J."]
[Result "1-0"]
[ECO "A03"]
[PlyCount "97"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. b3 Nf6 2. Bb2 d5 3. Nf3 c5 4. e3 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. Ne5 Rc8 8. 0-0 e6 9. d3 Bd6 10. f4 0-0 11. Nd2 Ne8 12. Rf3 Bxe5 13. fxe5 d4 14. e4 Qc7 15. c3 Rd8 16. cxd4 cxd4 17. Ba3 Qxe5 18. Bxf8 Kxf8 19. Nc4 Qh5 20. Qd2 Kg8 21. Rh3 Qc5 22. Qa5 Qxa5 23. Nxa5 Nd6 24. Nxc6 bxc6 25. Rc1 Nb5 26. Rxc6 e5 27. Rc5 Nc3 28. Rxe5 f6 29. Ra5 h6 30. Rxa7 Nxe4 31. dxe4 d3 32. Rxd3 Rxd3 33. Kf2 Rd2+ 34. Kf3 h5 35. h4 g5 36. hxg5 fxg5 37. Ra5 Rd3+ 38. Kf2 Rd2+ 39. Kf3 Rd3+ 40. Ke2 Rg3 41. Kf2 h4 42. Rf5 Kg7 43. e5 Kg6 44. e6 Kxf5 45. e7 Rc3 46. e8Q Rc2+ 47. Ke3 Rxa2 48. b4 Ra1 49. Qe4+ 1-0

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1992.??.??"]
[Round "?"]
[White "Duijs, Peter"]
[Black "Schaaps, Cor"]
[Result "0-1"]
[ECO "A01"]
[PlyCount "68"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. b3 d5 2. Bb2 Bg4 3. h3 Bh5 4. g3 c6 5. Bg2 Nd7 6. Nf3 Ngf6 7. c4 dxc4 8. bxc4 Qc7 9. 0-0 e6 10. Nc3 Bxf3 11. Bxf3 Ne5 12. Ne4 Nxe4 13. Bxe4 Nxc4 14. Bc3 Bd6 15. Qa4 Nb6 16. Qa5 f5 17. Bg2 0-0 18. Rac1 e5 19. d4 e4 20. Rfd1 Qe7 21. e3 Nd5 22. Qa4 g5 23. Qc2 Rf7 24. Qe2 Re8 25. Bd2 Kh8 26. Qh5 Rg8 27. Qe2 Rfg7 28. g4 fxg4 29. Qxg4 Nf6 30. Qf5 g4 31. h4 Rf8 32. Qa5 Nd5 33. Be1 Qxh4 34. Bxe4 g3 0-1

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1992.??.??"]
[Round "?"]
[White "Duijs, Peter"]
[Black "Schermer, Anton"]
[Result "1/2-1/2"]
[ECO "A01"]
[PlyCount "121"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. e3 Nf6 4. Bb5 d6 5. Ne2 g6 6. d4 Nd7 7. dxe5 Bg7 8. Bxc6 bxc6 9. 0-0 Nxe5 10. Nbc3 0-0 11. Qd2 Qh4 12. f3 Re8 13. g3 Qh5 14. g4 Qh4 15. Rae1 f5 16. gxf5 Bxf5 17. Ng3 Bh3 18. Rf2 Rf8 19. f4 Ng4 20. Rf3 Rf7 21. Nd1 Bxb2 22. Nxb2 Raf8 23. Nd3 Ne5 24. Nxe5 dxe5 25. Ne2 Bg4 26. Rg3 Bxe2 27. Qxe2 exf4 28. exf4 Qxf4 29. Re3 Qg4+ 30. Rg3 Qd4+ 31. Re3 Rf5 32. Qc4+ Qxc4 33. bxc4 Rf2 34. R1e2 Rxe2 35. Rxe2 Rf4 36. Re7 Rxc4 37. Rxc7 a5 38. Ra7 a4 39. c3 c5 40. Kf2 Rxc3 41. Rxa4 Rc2+ 42. Kg3 Kg7 43. Ra6 c4 44. a4 c3 45. Rc6 Rc1 46. a5 c2 47. Kh3 h5 48. a6 Ra1 49. Rxc2 Rxa6 50. Kh4 Kh6 51. h3 Ra3 52. Rc6 Re3 53. Ra6 Rf3 54. Rd6 Rf1 55. Kg3 Kg5 56. h4+ Kf5 57. Ra6 Rg1+ 58. Kh2 Rg4 59. Kh3 Kf4 60. Ra4+ Kf3 61. Ra3+ 1/2-1/2

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1992.??.??"]
[Round "?"]
[White "Hoekstra, Peter"]
[Black "Duijs, Peter"]
[Result "0-1"]
[ECO "A61"]
[PlyCount "55"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. Nf3 g6 7. Bf4 Bg7 8. Qa4+ Bd7 9. Qb3 Bc8 10. Qb5+ Qd7 11. Bxd6 Qxb5 12. Nxb5 Na6 13. Nc3 Kd7 14. Bg3 Nh5 15. e4 Nxg3 16. hxg3 Nb4 17. 0-0-0 h5 18. a3 Na6 19. Bb5+ Kd8 20. Ng5 Bh6 21. f4 Bxg5 22. Bxa6 bxa6 23. fxg5 Re8 24. Rdf1 Re7 25. Rf6 Rb8 26. Rhf1 Ke8 27. Rc6 Reb7 28. Rf2 0-1

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1992.??.??"]
[Round "?"]
[White "Kamps, Ronald"]
[Black "Duijs, Peter"]
[Result "0-1"]
[ECO "B98"]
[PlyCount "42"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Be2 Qc7 9. Qd2 b5 10. Bf3 Bb7 11. e5 dxe5 12. Bxb7 Qxb7 13. fxe5 Ne4 14. Nxe4 Qxe4+ 15. Qe3 Qxg2 16. Rg1 Bxg5 17. Qxg5 Qe4+ 18. Ne2 Nc6 19. Qxg7 0-0-0 20. Qxf7 Nd4 21. Rg2 Nxc2+ 0-1

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1992.??.??"]
[Round "?"]
[White "Ruyter, L."]
[Black "Duijs, Peter"]
[Result "0-1"]
[ECO "B87"]
[PlyCount "122"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bg5 b5 8. Bb3 Be7 9. f3 0-0 10. Qd2 Qc7 11. 0-0 Nc6 12. Nxc6 Qxc6 13. Kh1 Ra7 14. a4 b4 15. Ne2 Qc7 16. Qxb4 d5 17. Qd4 dxe4 18. Bf4 Qb7 19. Be3 Ra8 20. fxe4 Rd8 21. Qe5 Bd6 22. Qg5 h6 23. Qh4 Qxe4 24. Qxe4 Nxe4 25. Rad1 Bb7 26. c3 Bc5 27. Bxc5 Nxc5 28. Bc2 Bc6 29. a5 Be4 30. Bxe4 Nxe4 31. Rd4 Rxd4 32. Nxd4 Rb8 33. b4 Nxc3 34. Rc1 Rxb4 35. Nc6 Rb1 36. Rxb1 Nxb1 37. Nb8 Nd2 38. Nxa6 Nc4 39. Kg1 Nxa5 40. Kf2 Kf8 41. Nc5 Ke7 42. Kf3 Kd6 43. Nd3 Nc4 44. Nf4 g6 45. Ne2 Nd2+ 46. Kf2 e5 47. h3 f5 48. Ng3 Kd5 49. Ne2 g5 50. Nc3+ Kc4 51. Ne2 f4 52. Ng1 e4 53. Ke1 Kd3 54. Ne2 f3 55. gxf3 exf3 56. Ng3 Ne4 57. Nf5 h5 58. Nh6 f2+ 59. Kf1 Ke3 60. Nf5+ Kf3 61. Nh4+ Kg3 0-1

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1991.??.??"]
[Round "?"]
[White "Duijs, Peter"]
[Black "Kuijper, Bas"]
[Result "1-0"]
[ECO "A06"]
[PlyCount "145"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. b3 c5 2. Bb2 Nc6 3. Nf3 d5 4. e3 e6 5. Bb5 Nf6 6. 0-0 Bd7 7. Bxc6 Bxc6 8. Ne5 Bb5 9. d3 Bd6 10. Nd2 Qc7 11. f4 0-0-0 12. Qe2 Ba6 13. c4 b6 14. e4 dxe4 15. dxe4 Bb7 16. Rae1 Ne8 17. Nd3 f6 18. e5 Be7 19. exf6 Bxf6 20. Bxf6 gxf6 21. Qxe6+ Kb8 22. Re3 Rd6 23. Qh3 Rg8 24. Nf3 Bc8 25. Qh5 Rd8 26. Rfe1 Bg4 27. Qh4 Qc6 28. Kh1 Bf5 29. Nf2 Ng7 30. Ng4 Bc8 31. Qxf6 Qxf6 32. Nxf6 Rgf8 33. Nxh7 Rxf4 34. Re4 Rxe4 35. Rxe4 Bb7 36. Re2 Nf5 37. Nhg5 Rh8 38. Kg1 Rg8 39. Re5 Nd4 40. Kf2 Nc2 41. Ne4 Nb4 42. Ke3 Rxg2 43. Rg5 Rxa2 44. Rg8+ Kc7 45. Rg7+ Kb8 46. h4 Nc2+ 47. Kf4 Bxe4 48. Kxe4 Nd4 49. Nxd4 cxd4 50. Kxd4 Rh2 51. Rh7 a5 52. c5 bxc5+ 53. Kxc5 Rc2+ 54. Kb6 Kc8 55. Kxa5 Ra2+ 56. Kb5 Re2 57. b4 Re5+ 58. Kc6 Re6+ 59. Kd5 Rf6 60. b5 Rf5+ 61. Kc6 Rf6+ 62. Kc5 Rf5+ 63. Kb6 Rf6+ 64. Ka5 Rf2 65. h5 Ra2+ 66. Kb6 Kd8 67. Kb7 Ke8 68. b6 Rh2 69. Kc8 Rc2+ 70. Rc7 Rd2 71. h6 Rd8+ 72. Kb7 Rd6 73. h7 1-0

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1991.??.??"]
[Round "?"]
[White "Duijs, Peter"]
[Black "Van Dam, Jan"]
[Result "1-0"]
[ECO "A05"]
[PlyCount "49"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 d6 3. e3 Nf6 4. Nf3 Bg4 5. h3 Bh5 6. Be2 Be7 7. d4 e4 8. Nfd2 Bxe2 9. Qxe2 d5 10. c4 0-0 11. cxd5 Qxd5 12. Nc3 Qf5 13. g4 Qe6 14. g5 Nd5 15. Ncxe4 Nb4 16. Rc1 Nxa2 17. Rxc7 Rc8 18. d5 Rxc7 19. dxe6 Bb4 20. exf7+ Rxf7 21. 0-0 Be7 22. Nc4 Nb4 23. Ncd6 Bxd6 24. Nxd6 Rd7 25. Qc4+ 1-0

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1991.??.??"]
[Round "?"]
[White "Folkertsma, Peter"]
[Black "Duijs, Peter"]
[Result "0-1"]
[ECO "A66"]
[PlyCount "100"]
[EventDate "1991.??.??"]
[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 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. e5 dxe5 9. fxe5 Nfd7 10. e6 Qe7 11. Qe2 fxe6 12. dxe6 Nb6 13. Nf3 0-0 14. Bg5 Qxe6 15. Qxe6+ Bxe6 16. 0-0-0 Nc6 17. Rd6 Rae8 18. Bb5 Nc8 19. Rxc6 bxc6 20. Bxc6 Rd8 21. Bxd8 Rxd8 22. Re1 Bf5 23. Nd5 Bh6+ 24. Nd2 Kf7 25. g3 Rd6 26. Bb7 Nb6 27. Re7+ Kf8 28. Rxh7 Bxd2+ 29. Kxd2 Nxd5 30. Bxd5 Rxd5+ 31. Ke3 a5 32. Ra7 c4 33. Rc7 Bd3 34. Kf4 Rb5 35. b3 cxb3 36. axb3 Rxb3 37. Ra7 Ra3 38. g4 a4 39. h4 Ra1 40. Kg5 a3 41. Rd7 Bc2 42. Rd2 Rc1 43. Rd8+ Ke7 44. Ra8 Ra1 45. Rc8 Be4 46. Kf4 a2 47. Rc7+ Kd6 48. Ra7 Rf1+ 49. Kxe4 a1Q 50. Rxa1 Rxa1 0-1

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1991.??.??"]
[Round "?"]
[White "Hage, Christer"]
[Black "Duijs, Peter"]
[Result "1-0"]
[ECO "A66"]
[PlyCount "27"]
[EventDate "1991.??.??"]
[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 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. e5 dxe5 9. fxe5 Nfd7 10. e6 Qe7 11. Nb5 Nb6 12. Ne2 Na6 13. exf7+ Qxf7 14. Nd6+ 1-0

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1991.??.??"]
[Round "7"]
[White "Strik, Aart"]
[Black "Duijs, Peter"]
[Result "1-0"]
[ECO "A46"]
[PlyCount "125"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nc3 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. g3 g6 6. Bg2 Bg7 7. 0-0 0-0 8. f4 Nc6 9. e3 Bd7 10. Nf3 Rc8 11. Qe2 a6 12. Rd1 b5 13. e4 Qc7 14. Nd5 Qb8 15. c3 Rfe8 16. Kh1 Nxd5 17. exd5 Na5 18. a4 Nb3 19. Ra3 bxa4 20. Be3 Qb5 21. Qf2 Rb8 22. Bf1 Qb7 23. h4 h5 24. Ng5 f6 25. Ne4 Bg4 26. Rd3 Bf5 27. Rxa4 Bxe4+ 28. Rxe4 a5 29. Ba7 Rbc8 30. Be3 Nc5 31. Bxc5 Rxc5 32. Re2 e6 33. Bg2 e5 34. fxe5 fxe5 35. Qe1 Rf8 36. Kh2 Qe7 37. Bh3 Qa7 38. Be6+ Kh7 39. Rf2 Rxf2+ 40. Qxf2 Rc7 41. Qxa7 Rxa7 42. Rf3 Rb7 43. Rf2 a4 44. g4 hxg4 45. Bxg4 Bh6 46. Bd1 Bf4+ 47. Kg2 Bc1 48. Bxa4 Bxb2 49. c4 Bd4 50. Rf6 Bc5 51. Be8 Rg7 52. Kf3 g5 53. h5 g4+ 54. Kg3 Kh8 55. h6 Rg5 56. Bg6 Kg8 57. Kh4 Rxg6 58. Rxg6+ Kh7 59. Kh5 g3 60. Rxg3 e4 61. Rg7+ Kh8 62. Re7 e3 63. Kg6 1-0

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "1"]
[White "Duijs, Peter"]
[Black "De Waal, Jacobus"]
[Result "1-0"]
[ECO "B21"]
[PlyCount "93"]
[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. d4 cxd4 3. Nf3 Nc6 4. c3 dxc3 5. Nxc3 e5 6. Bc4 h6 7. 0-0 Nf6 8. Qb3 Qe7 9. Nd5 Nxd5 10. Bxd5 Qf6 11. Bd2 Be7 12. Bc3 d6 13. Nd2 0-0 14. f4 Qh4 15. f5 Bd8 16. Nf3 Qf6 17. Be1 Bb6+ 18. Kh1 Qd8 19. Nh4 Qg5 20. Ng6 Nd4 21. Qh3 Re8 22. Bh4 Qd2 23. Rf2 Qa5 24. Rff1 Bd8 25. Be1 Qb5 26. Bc3 Nxf5 27. g4 Be6 28. Bxe6 Rxe6 29. gxf5 Rf6 30. Nh4 Bb6 31. Qg2 Rd8 32. Rad1 Be3 33. Rd5 Qa6 34. Rf3 Qb6 35. Rg3 Bf4 36. Rxg7+ Kf8 37. Rg8+ Ke7 38. Rxd8 Qxd8 39. Qg7 Kd7 40. Ng6 Qe8 41. Nxf4 exf4 42. e5 Rxf5 43. Rxd6+ Kc7 44. Qg4 Qb5 45. Qd1 f3 46. Rd8 f2 47. Qd6# 1-0

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "6"]
[White "Duijs, Peter"]
[Black "Temming, Jan"]
[Result "1-0"]
[ECO "B21"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. c3 dxc3 5. Nxc3 e6 6. Bc4 Be7 7. 0-0 Nf6 8. Qe2 0-0 9. Rd1 Qa5 10. Nb5 Rd8 11. b4 Qb6 12. Be3 Qc6 13. Nfd4 Qd7 14. e5 Nd5 15. exd6 Bxd6 16. Nxd6 Nc3 17. Qg4 Nxd1 18. Bh6 g6 19. N4b5 Nc6 20. Rxd1 a6 21. Qf4 f5 22. Re1 Qe7 23. Nxc8 Raxc8 24. Rxe6 Kh8 25. Rxe7 Rd1+ 26. Bf1 axb5 27. Qc7 1-0

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "3"]
[White "Duijs, Peter"]
[Black "Van der Berg, A."]
[Result "1/2-1/2"]
[ECO "B76"]
[PlyCount "72"]
[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. d4 cxd4 3. Nf3 d6 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Qd2 0-0 8. f3 Nc6 9. 0-0-0 Nxd4 10. Bxd4 Be6 11. g4 Qa5 12. Kb1 Rfc8 13. a3 Rab8 14. g5 Nh5 15. Bxg7 Nxg7 16. Nd5 Qxd2 17. Rxd2 Kf8 18. Nf4 Rc5 19. h4 Rbc8 20. Nxe6+ Nxe6 21. Bh3 R8c7 22. Bxe6 fxe6 23. Rhd1 Kg7 24. c3 h6 25. f4 h5 26. Rd4 e5 27. fxe5 Rxe5 28. Kc2 b5 29. Kd3 Rec5 30. Ke3 a6 31. Rd5 Kf7 32. Rxc5 Rxc5 33. Rd5 Rc4 34. Kd3 Ke6 35. Rd4 Rc5 36. b3 Ke5 1/2-1/2

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "5"]
[White "Melis, A."]
[Black "Duijs, Peter"]
[Result "0-1"]
[ECO "B99"]
[PlyCount "46"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. 0-0-0 Nbd7 10. Bd3 b5 11. Rhe1 Bb7 12. Qg3 h6 13. Bh4 g5 14. fxg5 Rg8 15. Qf3 hxg5 16. Bg3 g4 17. Qe2 Nh5 18. Qf2 Nxg3 19. hxg3 Qc5 20. Rf1 Ne5 21. Qe2 b4 22. Nb3 Nxd3+ 23. Qxd3 Qg5+ 0-1

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "2"]
[White "Piersma, Jan"]
[Black "Duijs, Peter"]
[Result "1-0"]
[ECO "B14"]
[PlyCount "79"]
[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 e6 3. Nf3 c5 4. e3 Nc6 5. Nc3 cxd4 6. exd4 d5 7. Bg5 Be7 8. Bd3 h6 9. Bh4 dxc4 10. Bxc4 0-0 11. 0-0 a6 12. Re1 b5 13. Bb3 Bb7 14. a3 Rc8 15. Bxf6 Bxf6 16. Ne2 Na5 17. Ng3 Nxb3 18. Qxb3 Bxf3 19. Qxf3 Bxd4 20. Rad1 Qb6 21. Rd2 Rc4 22. Red1 Rfc8 23. Ne2 Bf6 24. h3 b4 25. b3 R4c6 26. a4 a5 27. Kf1 Qa6 28. Kg1 Rc2 29. Rxc2 Rxc2 30. Nf4 Rc3 31. Rd3 Rc1+ 32. Kh2 Be5 33. Rd8+ Kh7 34. Qe4+ f5 35. Qxe5 Qf1 36. Qxe6 Qg1+ 37. Kg3 Rc3+ 38. Nd3 f4+ 39. Kxf4 Qh2+ 40. Kf3 1-0

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "4"]
[White "Van Beusekom, Leo"]
[Black "Duijs, Peter"]
[Result "1-0"]
[ECO "E10"]
[PlyCount "63"]
[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 e6 3. Nf3 c5 4. g3 g6 5. Bg2 cxd4 6. Nxd4 Bg7 7. Nc3 0-0 8. e4 Nc6 9. 0-0 Nxd4 10. Qxd4 Ng4 11. Qd1 Ne5 12. c5 Qa5 13. Na4 Nc4 14. Rb1 b5 15. cxb6 axb6 16. b3 Qb4 17. Qc2 Na3 18. Bxa3 Qxa3 19. Nxb6 Qxa2 20. Qxa2 Rxa2 21. Rfd1 Ba6 22. Nxd7 Rc8 23. Bf1 Bxf1 24. Rxf1 Rcc2 25. e5 Bh6 26. Nf6+ Kg7 27. b4 Be3 28. Ne4 Bd4 29. b5 Bxe5 30. b6 Rab2 31. b7 Bb8 32. Nc5 1-0

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "7"]
[White "Welten, Hans"]
[Black "Duijs, Peter"]
[Result "0-1"]
[ECO "B14"]
[PlyCount "110"]
[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 e6 3. Nc3 c5 4. e3 cxd4 5. exd4 d5 6. c5 Nc6 7. Nf3 b6 8. Bb5 Bd7 9. Bxc6 Bxc6 10. b4 bxc5 11. bxc5 Be7 12. 0-0 0-0 13. Bf4 Nd7 14. Rc1 Bf6 15. a4 Qa5 16. Qb3 a6 17. Rfe1 Ra7 18. Ne5 Bxe5 19. Bxe5 Rb7 20. Qd1 Nxe5 21. Rxe5 Rb4 22. Ra1 Rc4 23. Ne2 Rxa4 24. Rxa4 Bxa4 25. Qb1 Qd2 26. Qc1 Qxc1+ 27. Nxc1 Rb8 28. Re1 Rb1 29. f4 Kf8 30. Kf2 Rb4 31. Ke3 a5 32. Re2 Bb5 33. Rd2 a4 34. Rc2 Ke7 35. Rc3 Kd7 36. Nd3 Bxd3 37. Kxd3 Kc6 38. Ra3 f6 39. Rc3 Rb5 40. Rc1 e5 41. fxe5 fxe5 42. dxe5 Rxc5 43. Re1 Kd7 44. Kd4 Ra5 45. e6+ Ke7 46. Ke5 a3 47. Rc1 a2 48. Ra1 g6 49. g4 d4+ 50. Kxd4 Kxe6 51. Ke4 Ra4+ 52. Ke3 Ke5 53. g5 Ra3+ 54. Ke2 Rh3 55. Rh1 Rxh2+ 0-1

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1984.??.??"]
[Round "?"]
[White "Duijs, Peter"]
[Black "Verhagen, Ad"]
[Result "0-1"]
[ECO "B99"]
[PlyCount "70"]
[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. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. 0-0-0 Nbd7 10. Bd3 Nc5 11. Rhe1 Nxd3+ 12. Rxd3 b5 13. e5 Bb7 14. Qh3 dxe5 15. fxe5 Nd7 16. Bxe7 Kxe7 17. Qh4+ Kf8 18. Qf4 Re8 19. Ndxb5 axb5 20. Nxb5 Qa5 21. Rf1 Re7 22. a4 Ba6 23. Ra3 g6 24. b4 Qd8 25. Rd1 Bxb5 26. axb5 Qb8 27. Qh6+ Ke8 28. Qg7 Rf8 29. c4 Nb6 30. Rad3 Rd7 31. Rd6 Qc7 32. c5 Nd5 33. Ra6 f5 34. Rxe6+ Ne7 35. Qxe7+ Rxe7 0-1

[Event "Alkmaar op-B"]
[Site "Alkmaar"]
[Date "1983.??.??"]
[Round "?"]
[White "Adema, Ruud"]
[Black "Duijs, Peter"]
[Result "1/2-1/2"]
[ECO "B25"]
[PlyCount "100"]
[EventDate "1983.??.??"]
[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. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 Nf6 6. Nf3 0-0 7. 0-0 d6 8. h3 h6 9. Be3 Rb8 10. Qd2 Kh7 11. Nd1 e5 12. c3 Be6 13. Ne1 g5 14. g4 Ne7 15. d4 Qc7 16. d5 Bd7 17. c4 b5 18. b3 bxc4 19. bxc4 Rb7 20. Nc3 Rfb8 21. Nd3 Ng6 22. Rfc1 Nf4 23. Bf1 h5 24. f3 hxg4 25. hxg4 Rh8 26. Rab1 Rxb1 27. Rxb1 Bh6 28. Qb2 Kg6 29. Bd2 Qc8 30. Qb7 Bxg4 31. Qxc8 Bxc8 32. Rb8 Nd7 33. Nxf4+ gxf4 34. Rb3 Bg5 35. Nb5 Be7 36. Nxa7 Rg8 37. Nxc8 Rxc8 38. Rb7 f5 39. exf5+ Kxf5 40. Bh3+ Kf6 41. Bxd7 Rg8+ 42. Kf2 Rh8 43. Ke2 Rh1 44. a4 Ra1 45. Rb2 Ra3 46. Rc2 Kg5 47. a5 Kh4 48. Rc1 Kg5 49. Bc8 Bd8 50. a6 Bb6 1/2-1/2

[Event "Alkmaar op-B"]
[Site "Alkmaar"]
[Date "1983.??.??"]
[Round "?"]
[White "Duijs, Peter"]
[Black "Driessen, Wim"]
[Result "0-1"]
[ECO "B23"]
[PlyCount "76"]
[EventDate "1983.??.??"]
[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. Nc3 e6 3. g3 d5 4. exd5 exd5 5. Bg2 d4 6. Qe2+ Ne7 7. Nb1 Nbc6 8. d3 Be6 9. Nf3 h6 10. Nbd2 Nd5 11. Nc4 Be7 12. 0-0 0-0 13. Nfe5 Qc7 14. Nxc6 bxc6 15. Ne5 Bf6 16. Nc4 Qd7 17. Ne5 Qc8 18. Re1 Re8 19. Qh5 Rb8 20. Nc4 Qd7 21. h3 Nb4 22. Re2 Bd5 23. Bf4 Rxe2 24. Qxe2 Re8 25. Qd2 Bxg2 26. Kxg2 g5 27. Nd6 Re6 28. Nc4 gxf4 29. Qxf4 Bg5 30. Qg4 Qd5+ 31. Kh2 Nxc2 32. Rf1 Rg6 33. Qc8+ Kh7 34. Qc7 Nb4 35. f4 Bf6 36. Nd6 Nxd3 37. Nxf7 Rg7 38. Ng5+ hxg5 0-1

[Event "Alkmaar op-B"]
[Site "Alkmaar"]
[Date "1983.??.??"]
[Round "?"]
[White "Duijs, Peter"]
[Black "Kraaijeveld, Jan"]
[Result "0-1"]
[ECO "A01"]
[PlyCount "38"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. b3 d5 2. Bb2 b6 3. g3 Bb7 4. Bg2 Nd7 5. c4 e6 6. Nc3 Ngf6 7. cxd5 exd5 8. Nf3 d4 9. Nb5 c5 10. 0-0 a6 11. Na3 Be7 12. e3 dxe3 13. dxe3 0-0 14. Nc4 Qc7 15. Rc1 Rad8 16. Qe2 Rc8 17. Rfd1 b5 18. Nce5 Nxe5 19. Bxe5 Bxf3 0-1

[Event "Alkmaar op-B"]
[Site "Alkmaar"]
[Date "1983.??.??"]
[Round "?"]
[White "Wouterson, R."]
[Black "Duijs, Peter"]
[Result "1-0"]
[ECO "B40"]
[PlyCount "55"]
[EventDate "1983.??.??"]
[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 Nf6 5. Bd3 Nc6 6. Nxc6 bxc6 7. 0-0 Be7 8. Kh1 0-0 9. f4 d6 10. e5 Nd5 11. Qh5 f5 12. exf6 Nxf6 13. Qh4 d5 14. Rf3 Ne4 15. Qe1 Nf6 16. Nc3 c5 17. b3 d4 18. Ne4 Bb7 19. Rh3 Qd5 20. Nxf6+ Rxf6 21. Bxh7+ Kf7 22. Qe2 Rh6 23. Rxh6 gxh6 24. Bd2 Rh8 25. Bd3 Rg8 26. Rg1 Bd6 27. f5 e5 28. Bc4 1-0

[Event "Alkmaar op-B"]
[Site "Alkmaar"]
[Date "1982.??.??"]
[Round "?"]
[White "Coerts, Marten"]
[Black "Duijs, Peter"]
[Result "0-1"]
[ECO "E00"]
[PlyCount "74"]
[EventDate "1982.??.??"]
[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 e6 3. a3 c5 4. Nf3 g6 5. Nc3 d5 6. Bg5 Be7 7. dxc5 h6 8. Bh4 0-0 9. Qc2 dxc4 10. e4 Nc6 11. Bxc4 Nd4 12. Qd3 Nxf3+ 13. Qxf3 Qd4 14. Bb3 Kg7 15. Rd1 Qxc5 16. 0-0 Rd8 17. Rxd8 Bxd8 18. Rd1 Be7 19. Ba2 a5 20. Qe2 Nh5 21. Bxe7 Qxe7 22. e5 Bd7 23. Qe3 Bc6 24. g4 Qh4 25. gxh5 Qxh5 26. Bb1 Bf3 27. Rd4 Qh3 28. Rg4 Qxg4+ 29. Kf1 Qg2+ 30. Ke1 Rd8 31. Bd3 Qh1+ 32. Kd2 b5 33. Qf4 Kg8 34. Qxh6 Rxd3+ 35. Kxd3 Qg2 36. Qe3 Qf1+ 37. Kd4 Qc4# 0-1

[Event "Alkmaar op-B"]
[Site "Alkmaar"]
[Date "1982.??.??"]
[Round "?"]
[White "Duijs, Peter"]
[Black "Adema, Ruud"]
[Result "1-0"]
[ECO "A49"]
[PlyCount "99"]
[EventDate "1982.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. g3 0-0 5. Bg2 d6 6. d4 e5 7. dxe5 Ng4 8. 0-0 Nxe5 9. Nxe5 dxe5 10. Nc3 Nd7 11. e3 Re8 12. Qe2 Nf6 13. Rad1 Qe7 14. Rd2 c6 15. Rfd1 e4 16. h3 h5 17. Rd4 Bf5 18. Qd2 Nd5 19. Rc4 Nb6 20. Rd4 Bxd4 21. Qxd4 f6 22. Nxe4 Bxe4 23. Bxe4 Rad8 24. Bxg6 Rxd4 25. Rxd4 Rf8 26. Bxh5 Qe5 27. Rg4+ Qg5 28. f4 Qxg4 29. Bxg4 f5 30. Bf3 Nd7 31. Bd4 Kf7 32. g4 c5 33. Bb2 b6 34. g5 Rd8 35. Bd5+ Kg6 36. c4 a6 37. a4 b5 38. axb5 axb5 39. Kf2 Nb6 40. e4 bxc4 41. bxc4 fxe4 42. Bxe4+ Kh5 43. Bf6 Rd2+ 44. Ke1 Rd6 45. Be5 Rd8 46. Bf3+ Kh4 47. Bg4 Nxc4 48. Bf6 Re8+ 49. Kf2 Nd6 50. g6# 1-0

[Event "Alkmaar op-B"]
[Site "Alkmaar"]
[Date "1982.??.??"]
[Round "?"]
[White "Kayser, Eddy"]
[Black "Duijs, Peter"]
[Result "1-0"]
[ECO "B53"]
[PlyCount "45"]
[EventDate "1982.??.??"]
[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. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. Nc3 Nf6 8. Bg5 Qa5 9. 0-0-0 b5 10. Kb1 b4 11. Nd5 Rb8 12. Qc4 Bxd5 13. exd5 Qb5 14. Qd4 a5 15. Rhe1 Kd7 16. Bxf6 gxf6 17. Qg4+ Kc7 18. Nd4 Qd7 19. Qe2 Rg8 20. f4 Qg4 21. Qc4+ Kd7 22. Qc6+ Kd8 23. Ne6+ 1-0

[Event "Alkmaar op-B"]
[Site "Alkmaar"]
[Date "1982.??.??"]
[Round "?"]
[White "Smit, Maarten"]
[Black "Duijs, Peter"]
[Result "1-0"]
[ECO "D36"]
[PlyCount "79"]
[EventDate "1982.??.??"]
[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 e6 3. Nc3 d5 4. Bg5 Nbd7 5. e3 c6 6. cxd5 exd5 7. Bd3 Be7 8. Nf3 0-0 9. Qc2 h6 10. Bf4 Re8 11. 0-0 Nh5 12. Nxd5 Nxf4 13. Nxf4 Nf6 14. Ne5 Bd6 15. Nxf7 Kxf7 16. Bc4+ Ke7 17. Ng6+ Kd7 18. e4 Rxe4 19. d5 Qe8 20. dxc6+ bxc6 21. Bd3 Qxg6 22. f3 Bxh2+ 23. Kxh2 Rh4+ 24. Kg1 Qg5 25. Rfe1 Nd5 26. Rad1 Kc7 27. Be4 Nb4 28. Qc3 Bh3 29. Re2 Rxe4 30. fxe4 Qg4 31. Red2 Bxg2 32. Rd7+ Kc8 33. Rd8+ Kc7 34. R8d7+ Kc8 35. Rd8+ Kc7 36. R1d7+ Kb6 37. Qxb4+ Ka6 38. Qb7+ Ka5 39. Rd5+ Ka4 40. Qxc6+ 1-0

