[Event "Hoogeveen Essent Amateur"]
[Site "Hoogeveen"]
[Date "2004.10.15"]
[Round "1"]
[White "Abels, Henk"]
[Black "Folkertsma, Peter"]
[Result "1-0"]
[ECO "B31"]
[PlyCount "43"]
[EventDate "2004.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. Re1 d6 6. d3 e6 7. Nbd2 Nge7 8. c3 0-0 9. a4 Bd7 10. h3 a6 11. Bc4 Qc7 12. Bb3 Rfe8 13. Nf1 d5 14. Be3 d4 15. cxd4 cxd4 16. Bg5 h6 17. Bd2 Rac8 18. Rc1 Qb8 19. N1h2 Ne5 20. Nxe5 Bxe5 21. Ng4 Bf4 22. Nf6+ 1-0

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1993.??.??"]
[Round "?"]
[White "Folkertsma, Peter"]
[Black "Otte, Marijn Willem"]
[Result "1/2-1/2"]
[ECO "D07"]
[PlyCount "69"]
[EventDate "1993.??.??"]
[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 d5 3. cxd5 Nxd5 4. Nf3 Nc6 5. e4 Nb6 6. Nc3 Bg4 7. Be2 Bxf3 8. Bxf3 Qxd4 9. Be3 Qb4 10. Qc2 e6 11. a3 Qa5 12. 0-0 Bd6 13. b4 Qe5 14. g3 Qf6 15. Bg2 a6 16. Rfe1 0-0 17. f4 Qg6 18. Ra2 Nc4 19. Qe2 Nxe3 20. Qxe3 f6 21. Kh1 Qe8 22. f5 Be5 23. Bh3 exf5 24. exf5 Rd8 25. Qc1 Qf7 26. Bf1 Kh8 27. Rae2 Nd4 28. Rf2 Nb3 29. Qc2 Rd4 30. Ne4 Rfd8 31. Nc5 Nxc5 32. Qxc5 Qb3 33. Qe7 Qxa3 34. Rxe5 Qa4 35. Re6 1/2-1/2

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1993.??.??"]
[Round "?"]
[White "Folkertsma, Peter"]
[Black "Punt, Willem"]
[Result "1-0"]
[ECO "A52"]
[PlyCount "71"]
[EventDate "1993.??.??"]
[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 e5 3. dxe5 Ng4 4. Nf3 Nc6 5. Bf4 Bb4+ 6. Nbd2 Qe7 7. a3 Bxd2+ 8. Qxd2 Ngxe5 9. Nxe5 Nxe5 10. Qd5 d6 11. e3 0-0 12. Be2 Be6 13. Qb5 Bd7 14. Qb3 Bc6 15. 0-0 Qf6 16. Qc2 Qe6 17. Rac1 Rfe8 18. b4 Ng6 19. Bg3 Ne7 20. Bd3 g6 21. Rfd1 Rac8 22. b5 Bd7 23. Be4 b6 24. Bf4 Qf6 25. Qa4 g5 26. Bg3 Nf5 27. Bxf5 Bxf5 28. Rd4 h5 29. h4 Bg4 30. hxg5 Qxg5 31. Rd5 Qf6 32. Qc2 Re6 33. Bf4 Ree8 34. f3 Be6 35. Rxh5 Kf8 36. Qh7 1-0

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1993.??.??"]
[Round "?"]
[White "Folkertsma, Peter"]
[Black "Van Dam, Jan"]
[Result "1-0"]
[ECO "D15"]
[PlyCount "83"]
[EventDate "1993.??.??"]
[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 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 Bg4 5. Ne5 Bf5 6. Qb3 Qb6 7. Qxb6 axb6 8. cxd5 cxd5 9. e3 e6 10. Bb5+ Nfd7 11. Bd2 f6 12. Nxd7 Nxd7 13. Na4 Rd8 14. Nxb6 Bd6 15. Bxd7+ Rxd7 16. Nxd7 Kxd7 17. 0-0 g5 18. Rfc1 h5 19. a3 g4 20. Rc3 h4 21. Rac1 g3 22. fxg3 hxg3 23. h3 Bxh3 24. gxh3 Rxh3 25. Rb3 e5 26. dxe5 fxe5 27. Rxb7+ Ke6 28. Rb6 Kd7 29. Bb4 Bxb4 30. Rxb4 g2 31. Kxg2 Rxe3 32. Rb6 d4 33. Kf2 Rh3 34. Rc5 Rh5 35. Rd5+ Ke7 36. Rbb5 Ke6 37. Rxd4 Rf5+ 38. Ke2 exd4 39. Rxf5 Kxf5 40. Kd3 Ke5 41. a4 Kd5 42. b4 1-0

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1993.??.??"]
[Round "?"]
[White "Greven, Ron"]
[Black "Folkertsma, Peter"]
[Result "1/2-1/2"]
[ECO "B06"]
[PlyCount "14"]
[EventDate "1993.??.??"]
[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 d6 2. d4 g6 3. Nf3 Bg7 4. Bc4 e6 5. Bb3 Ne7 6. 0-0 0-0 7. Re1 c5 1/2-1/2

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1993.??.??"]
[Round "?"]
[White "Sekano, Willy"]
[Black "Folkertsma, Peter"]
[Result "1-0"]
[ECO "E97"]
[PlyCount "56"]
[EventDate "1993.??.??"]
[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 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Nd2 Ne8 10. b4 f5 11. f3 f4 12. c5 g5 13. Ba3 Rf6 14. Nc4 Rh6 15. Rc1 a6 16. b5 dxc5 17. Bxc5 b6 18. Ba3 axb5 19. Nxb5 Ba6 20. Bxe7 Qxe7 21. d6 Qd8 22. Qd5+ Kf8 23. Nxe5 Bxe5 24. Qxe5 Bxb5 25. Bxb5 Nxd6 26. Bc6 Nf7 27. Qb2 Rd6 28. Bxa8 Qxa8 1-0

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1993.??.??"]
[Round "?"]
[White "Vink, Nico"]
[Black "Folkertsma, Peter"]
[Result "1-0"]
[ECO "B33"]
[PlyCount "63"]
[EventDate "1993.??.??"]
[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 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 0-0 12. Nc2 Bg5 13. h4 Bh6 14. g4 g6 15. g5 Bg7 16. Qd3 h5 17. gxh6 Bxh6 18. Nce3 Na5 19. h5 g5 20. Bh3 Be6 21. Bf5 Kg7 22. Ng4 Nc4 23. 0-0-0 Rc8 24. Rdg1 Nb6 25. f4 Nxd5 26. exd5 Bxf5 27. Qxf5 exf4 28. Rh4 Qe7 29. Kb1 Rce8 30. Nxh6 Kxh6 31. Rxf4 gxf4 32. Rg6+ 1-0

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1993.??.??"]
[Round "?"]
[White "Voet, Wim"]
[Black "Folkertsma, Peter"]
[Result "1/2-1/2"]
[ECO "B33"]
[PlyCount "25"]
[EventDate "1993.??.??"]
[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 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Bb4 7. Bd3 d5 8. Bd2 dxe4 9. Nxe4 Nxe4 10. Bxe4 Bxd2+ 11. Qxd2 Qxd2+ 12. Nxd2 0-0 13. 0-0 1/2-1/2

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1992.??.??"]
[Round "?"]
[White "Folkertsma, Peter"]
[Black "Ens, Jan"]
[Result "0-1"]
[ECO "E76"]
[PlyCount "49"]
[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 g6 3. Nc3 Bg7 4. e4 d6 5. f4 0-0 6. Nf3 c5 7. d5 Ne8 8. Bd3 e6 9. 0-0 exd5 10. e5 d4 11. Nd5 Nc6 12. exd6 Nxd6 13. Re1 Be6 14. a3 Nxc4 15. Rxe6 fxe6 16. Nc7 Qxc7 17. Bxc4 Kh8 18. Bxe6 Bf6 19. f5 Nd8 20. Ng5 Bxg5 21. Bxg5 gxf5 22. Bxd8 Raxd8 23. Qh5 Qe5 24. Bf7 Qf6 25. Bc4 0-1

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1992.??.??"]
[Round "?"]
[White "Folkertsma, Peter"]
[Black "Kruiper, Dirk"]
[Result "1/2-1/2"]
[ECO "D32"]
[PlyCount "115"]
[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 d5 2. c4 e6 3. Nc3 c5 4. Nf3 cxd4 5. Nxd4 e5 6. Nf3 d4 7. Nd5 Nc6 8. e3 Bc5 9. Nxe5 dxe3 10. Bxe3 Bxe3 11. Nxc6 Bxf2+ 12. Kxf2 bxc6 13. Qa4 Qd6 14. Re1+ Be6 15. Qb4 Qd7 16. Bd3 Ne7 17. Qxe7+ Qxe7 18. Nxe7 Kxe7 19. Bf5 Rad8 20. Re2 c5 21. Rhe1 Rd6 22. Bxe6 fxe6 23. Kg3 Rhd8 24. Re3 Rf8 25. R1e2 g6 26. Ra3 Rd7 27. Re5 Rf5 28. Rae3 Rxe5 29. Rxe5 Rd3+ 30. Kf2 Rd2+ 31. Re2 Rxe2+ 32. Kxe2 Kd6 33. Kf3 Ke5 34. Ke3 a6 35. g4 h5 36. gxh5 gxh5 37. h3 a5 38. b3 Kf5 39. a3 Kg5 40. b4 cxb4 41. c5 bxa3 42. c6 a2 43. c7 a1Q 44. c8Q Qe1+ 45. Kf3 Qf1+ 46. Ke3 Qxh3+ 47. Ke2 Qg2+ 48. Ke3 Qg3+ 49. Ke2 Qg4+ 50. Kf2 a4 51. Qd8+ Kh6 52. Qh8+ Kg5 53. Qg8+ Kf5 54. Qf8+ Ke4 55. Qb4+ Kd3 56. Qa3+ Kc2 57. Qa2+ Kc3 58. Qa3+ 1/2-1/2

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1992.??.??"]
[Round "?"]
[White "Folkertsma, Peter"]
[Black "Slikker, Dirk"]
[Result "1/2-1/2"]
[ECO "D27"]
[PlyCount "45"]
[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 d5 2. c4 dxc4 3. Nf3 a6 4. e3 Nf6 5. Bxc4 e6 6. 0-0 c5 7. dxc5 Qxd1 8. Rxd1 Bxc5 9. a3 b5 10. Be2 Nbd7 11. b4 Ba7 12. Bb2 Bb7 13. Ne5 Nxe5 14. Bxe5 Rd8 15. Rxd8+ Kxd8 16. Nd2 Ke7 17. Bf3 Bxf3 18. Nxf3 Rd8 19. Rc1 Ne8 20. h3 f6 21. Bd4 Bxd4 22. Nxd4 Rd6 23. Kf1 1/2-1/2

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1992.??.??"]
[Round "?"]
[White "Folkertsma, Peter"]
[Black "Van Beusekom, Leo"]
[Result "1/2-1/2"]
[ECO "D36"]
[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 d5 4. cxd5 exd5 5. Bg5 Nbd7 6. e3 Be7 7. Nf3 c6 8. Bd3 0-0 9. 0-0 h6 10. Bh4 Re8 11. Qc2 Nh5 12. Bxe7 Qxe7 13. Rab1 Nhf6 14. b4 Ne4 15. Bxe4 dxe4 16. Nd2 Nf6 17. b5 Bd7 18. bxc6 Bxc6 19. Qb3 Red8 20. Nc4 b6 21. Ne5 Bb7 22. Rfd1 Rac8 23. Rbc1 Kf8 24. Qa4 Ba8 25. a3 Nd7 26. Nd5 Bxd5 27. Nxd7+ Kg8 28. Ne5 1/2-1/2

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1992.??.??"]
[Round "?"]
[White "Nienkemper, R."]
[Black "Folkertsma, Peter"]
[Result "0-1"]
[ECO "B24"]
[PlyCount "134"]
[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. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nge2 e5 6. Nd5 Nge7 7. Nec3 d6 8. d3 h6 9. Be3 Be6 10. Qd2 Qa5 11. Nb5 Qxd2+ 12. Kxd2 Kd7 13. Ndc7 Rac8 14. Nxe6 Kxe6 15. Bh3+ f5 16. Rab1 a6 17. Nc3 Rcf8 18. f4 Kd7 19. exf5 gxf5 20. Bg2 exf4 21. Bxf4 Bxc3+ 22. Kxc3 b6 23. a3 Nd4 24. Rbe1 Ng6 25. Be3 Nb5+ 26. Kd2 f4 27. Bh3+ Kc7 28. Bxf4 Nxf4 29. gxf4 Rxf4 30. Re7+ Kb8 31. Bd7 Nd4 32. Ke3 Rf3+ 33. Ke4 Rf2 34. Re8+ Rxe8+ 35. Bxe8 Re2+ 36. Kd5 Rxe8 37. c3 Nf5 38. Kc6 Ka7 39. b4 cxb4 40. cxb4 Rc8+ 41. Kd7 Kb7 42. Rf1 Rc7+ 43. Ke6 Re7+ 44. Kf6 Ne3 45. Rf3 Nd5+ 46. Kg6 Re6+ 47. Kg7 Re3 48. Rxe3 Nxe3 49. h3 Kc6 50. Kxh6 Kd5 51. Kg5 Ke5 52. h4 b5 53. h5 Nf5 54. d4+ Ke6 55. Kg6 Ne7+ 56. Kg7 Nd5 57. h6 Nf6 58. Kg6 d5 59. Kg7 Kf5 60. Kf7 Nh7 61. Ke7 Ke4 62. Kf7 Kf5 63. Ke7 Ng5 64. Kd6 Ke4 65. Kc6 Nh7 66. Kd6 Kxd4 67. Ke6 Ke4 0-1

[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 "Folkertsma, Peter"]
[Black "Greven, Ron"]
[Result "1-0"]
[ECO "A50"]
[PlyCount "105"]
[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 b6 3. f3 d5 4. cxd5 Nxd5 5. e4 Nf6 6. Be3 e6 7. Nc3 Be7 8. Bd3 0-0 9. Qc2 h6 10. Nge2 Nc6 11. a3 Bb7 12. 0-0 Qd7 13. e5 Ne8 14. Rac1 Rd8 15. b4 f5 16. Bc4 g5 17. d5 Nxe5 18. dxe6 Qc8 19. Bb3 Kh7 20. Rcd1 Ng7 21. Bd4 Ng6 22. Bxg7 Kxg7 23. Rxd8 Qxd8 24. Rd1 Bd6 25. Nb5 Qb8 26. Nxd6 cxd6 27. Ng3 Ne7 28. Qd3 d5 29. Bc2 Kg6 30. Nxf5 Nxf5 31. g4 Qe5 32. gxf5+ Rxf5 33. Qxf5+ Qxf5 34. Bxf5+ Kxf5 35. e7 Bc6 36. Re1 Be8 37. Kf2 Kf6 38. Re2 Kf7 39. Ke1 Bb5 40. Re3 d4 41. Re5 a6 42. Kd2 d3 43. Kc3 Ke8 44. Re6 h5 45. Re5 g4 46. fxg4 hxg4 47. Re4 Kf7 48. Rxg4 Kxe7 49. Rg6 Kf7 50. Rxb6 Kg7 51. Rd6 Kh7 52. Rxd3 Kh6 53. Rd5 1-0

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1991.??.??"]
[Round "7"]
[White "Folkertsma, Peter"]
[Black "Van Egmond, Joost"]
[Result "1/2-1/2"]
[ECO "E25"]
[PlyCount "32"]
[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 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. e3 Qc7 8. cxd5 exd5 9. Bb5+ Bd7 10. Bxd7+ Nbxd7 11. Ne2 0-0 12. 0-0 Rfe8 13. Re1 Re7 14. a4 Rae8 15. dxc5 Nxc5 16. Nd4 Re5 1/2-1/2

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1991.??.??"]
[Round "?"]
[White "Hoekstra, Peter"]
[Black "Folkertsma, Peter"]
[Result "1/2-1/2"]
[ECO "B33"]
[PlyCount "58"]
[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. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Qa5+ 10. c3 Nxe4 11. Be3 Rb8 12. Qf3 f5 13. Bd3 Be6 14. Bxe4 fxe4 15. Qxe4 Bxd5 16. Qxd5 Qc7 17. Nc2 a5 18. 0-0 Ne7 19. Qe6 Qd7 20. Qxd7+ Kxd7 21. Rad1 Nf5 22. Bg5 h6 23. Bc1 g5 24. Rfe1 Bg7 25. Ne3 Nxe3 26. Bxe3 Ke6 27. f4 gxf4 28. Bxf4 Rhf8 29. Bg3 Rf5 1/2-1/2

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1991.??.??"]
[Round "?"]
[White "Keesman, Karel"]
[Black "Folkertsma, Peter"]
[Result "1/2-1/2"]
[ECO "E94"]
[PlyCount "90"]
[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 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. 0-0 Nbd7 8. d5 Nc5 9. Qc2 a5 10. Ne1 Ne8 11. Nd3 Nxd3 12. Bxd3 f5 13. exf5 Bxf5 14. Bxf5 Rxf5 15. Be3 Qh4 16. Qe4 Qxe4 17. Nxe4 h6 18. f3 b6 19. Kf2 Rf7 20. Ke2 Nf6 21. Nc3 Raf8 22. Rab1 Kh7 23. Nb5 Ne8 24. Na7 Nf6 25. Nc6 Ra8 26. Kd3 Raf8 27. a3 Ng4 28. Ke2 Nxe3 29. Kxe3 Rf4 30. b3 e4 31. Rbd1 exf3 32. Rxf3 Rxf3+ 33. gxf3 Re8+ 34. Kf2 Bb2 35. a4 Be5 36. Re1 g5 37. Re4 Kg6 38. Ke2 Kf6 39. Nd4 Rf8 40. Ne6 Rf7 41. h4 Kg6 42. Rg4 Bf4 43. hxg5 hxg5 44. Kf1 Kf5 45. Ke2 c5 1/2-1/2

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1991.??.??"]
[Round "?"]
[White "Rietveld, Gerard"]
[Black "Folkertsma, Peter"]
[Result "1/2-1/2"]
[ECO "A03"]
[PlyCount "45"]
[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. f4 c5 2. Nf3 d5 3. c3 Nc6 4. d3 e6 5. e3 Be7 6. Be2 Nh6 7. 0-0 0-0 8. Qe1 Rb8 9. Ne5 Qc7 10. d4 f6 11. Nd3 c4 12. Nf2 f5 13. Nd2 Rf6 14. Nf3 Nf7 15. Ne5 Ncxe5 16. fxe5 Rh6 17. e4 Bg5 18. exf5 exf5 19. Nh3 Bxc1 20. Rxc1 Be6 21. Qf2 Rf8 22. Nf4 Ng5 23. Bf3 1/2-1/2

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1991.??.??"]
[Round "?"]
[White "Tesselaar, Willem"]
[Black "Folkertsma, Peter"]
[Result "1/2-1/2"]
[ECO "E90"]
[PlyCount "89"]
[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. Nf3 Nf6 2. d4 g6 3. c4 d6 4. Nc3 Bg7 5. e4 0-0 6. Bd3 e5 7. dxe5 dxe5 8. 0-0 c6 9. Bg5 Qc7 10. Qc2 Be6 11. Rad1 Na6 12. a3 Nc5 13. Be2 a5 14. Be3 Ncd7 15. h3 Ne8 16. Ng5 h6 17. Nxe6 fxe6 18. Qd2 Nef6 19. Bxh6 Nc5 20. Bxg7 Kxg7 21. Qe3 Nb3 22. Bd3 Nd4 23. Ne2 c5 24. Ng3 Rh8 25. f4 Nh5 26. Nxh5+ Rxh5 27. fxe5 Qxe5 28. Rd2 Rhh8 29. Rdf2 Raf8 30. Rxf8 Rxf8 31. Rxf8 Kxf8 32. Qh6+ Kf7 33. Qh7+ Kf8 34. Qxg6 Qf4 35. e5 Qe3+ 36. Kh2 Qxe5+ 37. Qg3 Qf6 38. Qb8+ Kg7 39. Qxb7+ Kf8 40. Qc8+ Kf7 41. Qc7+ Ke8 42. Qg3 Kd7 43. h4 e5 44. Qg4+ Kc7 45. Qg5 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1990.??.??"]
[Round "4"]
[White "Folkertsma, Peter"]
[Black "Meilink, R."]
[Result "1-0"]
[ECO "D04"]
[PlyCount "57"]
[EventDate "1990.??.??"]
[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 Bf5 3. e3 Nf6 4. Bd3 Bxd3 5. Qxd3 e6 6. Qb5+ c6 7. Qxb7 Nbd7 8. Qxc6 Rc8 9. Qa4 Qb6 10. c3 Bd6 11. 0-0 0-0 12. Nbd2 Qc7 13. h3 h6 14. Re1 g5 15. e4 dxe4 16. Nxe4 Nxe4 17. Rxe4 Nf6 18. Re1 g4 19. hxg4 Nxg4 20. Ne5 h5 21. Nxg4 hxg4 22. Qd1 f5 23. Rxe6 Bh2+ 24. Kf1 Kf7 25. Qb3 Rb8 26. Qd5 Rb5 27. Qxb5 Kxe6 28. Qc5 Qb8 29. Bg5 1-0

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1990.??.??"]
[Round "2"]
[White "Folkertsma, Peter"]
[Black "Punt, Wouter"]
[Result "1/2-1/2"]
[ECO "A96"]
[PlyCount "35"]
[EventDate "1990.??.??"]
[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 f5 2. g3 Nf6 3. c4 e6 4. Bg2 Be7 5. Nf3 d6 6. Nc3 0-0 7. 0-0 c6 8. Qc2 d5 9. e3 Ne4 10. Nd2 Bd7 11. Re1 Be8 12. c5 Bf6 13. f3 Nxd2 14. Bxd2 Bg6 15. Qb3 Qc7 16. Ne2 e5 17. Bc3 e4 18. f4 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1990.??.??"]
[Round "5"]
[White "Van Egmond, Joost"]
[Black "Folkertsma, Peter"]
[Result "1/2-1/2"]
[ECO "B07"]
[PlyCount "72"]
[EventDate "1990.??.??"]
[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 g6 3. Be3 Nf6 4. f3 Bg7 5. Nc3 c6 6. Qd2 a5 7. a4 Na6 8. Bc4 d5 9. Bb3 0-0 10. Nge2 Kh8 11. Bh6 e6 12. Bxg7+ Kxg7 13. e5 Ng8 14. h4 h5 15. g4 hxg4 16. fxg4 Nh6 17. 0-0-0 Rh8 18. Qf4 Qe7 19. Ng3 Bd7 20. h5 g5 21. Qf3 Rag8 22. Rdf1 Kf8 23. Nd1 c5 24. c3 cxd4 25. Bc2 dxc3 26. Nxc3 Nb4 27. Bg6 Ke8 28. Nce4 dxe4 29. Nxe4 Bc6 30. Nf6+ Kd8 31. Be4 Qc5+ 32. Kb1 Qc4 33. Bxc6 Qc2+ 34. Ka1 bxc6 35. Qd1+ Qxd1+ 36. Rxd1+ Kc7 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1990.??.??"]
[Round "7"]
[White "Vlaming, Jos Pl"]
[Black "Folkertsma, Peter"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "71"]
[EventDate "1990.??.??"]
[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 g6 2. d4 d6 3. Nc3 Bg7 4. Be3 Nf6 5. f3 c6 6. Qd2 a5 7. 0-0-0 b5 8. Kb1 Na6 9. g4 h6 10. h4 Be6 11. d5 cxd5 12. Bxb5+ Bd7 13. Bxd7+ Qxd7 14. exd5 Rb8 15. b3 a4 16. Nge2 axb3 17. cxb3 Nb4 18. Bd4 Qb7 19. g5 Nh5 20. Bxg7 Nxg7 21. Ng3 h5 22. Qd4 Nxa2 23. Qa4+ Qd7 24. Qxd7+ Kxd7 25. Kxa2 Rb7 26. Nce4 Rhb8 27. Rd3 Ra7+ 28. Kb2 Rba8 29. Nc3 Rb8 30. Re1 Rb4 31. Re4 Rab7 32. Rxb4 Rxb4 33. Nce4 Nf5 34. Kc3 Rb7 35. Nxf5 gxf5 36. Ng3 1-0

