[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "1"]
[White "Donker, Gerard"]
[Black "Mawira, Djohan"]
[Result "0-1"]
[ECO "C07"]
[PlyCount "38"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. c3 Nc6 5. Ngf3 cxd4 6. cxd4 Nge7 7. Bd3 Qb6 8. Nb3 a5 9. Bb1 Ng6 10. exd5 exd5 11. Qe2+ Be7 12. 0-0 0-0 13. Rd1 a4 14. Nbd2 Bf6 15. Nf1 Nxd4 16. Nxd4 Bxd4 17. Be3 Qxb2 18. Qh5 Bxe3 19. Nxe3 Qxa1 0-1

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "6"]
[White "Donker, Gerard"]
[Black "Van den Berg, Dick"]
[Result "0-1"]
[ECO "C17"]
[PlyCount "58"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[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. Nb5 Bxd2+ 7. Qxd2 0-0 8. Nf3 cxd4 9. Nfxd4 Nbc6 10. c3 Nxe5 11. f4 Ng4 12. h3 Nf6 13. Bd3 a6 14. Na3 Nc6 15. Nf3 Ne4 16. Qc2 f5 17. 0-0-0 b5 18. g4 b4 19. gxf5 Qc7 20. Nc4 Ng3 21. fxe6 Nxh1 22. Bxh7+ Kh8 23. Nce5 Rf6 24. Ng5 Nxe5 25. fxe5 Qxe5 26. Nf7+ Rxf7 27. exf7 Qf4+ 28. Kb1 Ng3 29. Bg8 Bf5 0-1

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "3"]
[White "Donker, Gerard"]
[Black "Verwoert, Jef"]
[Result "0-1"]
[ECO "B93"]
[PlyCount "48"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[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. f4 e5 7. Nf3 Qc7 8. Be3 Be7 9. Be2 b5 10. 0-0 Nbd7 11. fxe5 dxe5 12. Nd2 Bb7 13. Bf3 0-0 14. Nd5 Nxd5 15. exd5 f5 16. d6 Bxd6 17. Bxb7 Qxb7 18. Nc4 Be7 19. Nd6 Bxd6 20. Qxd6 Rf6 21. Qd3 f4 22. Rad1 fxe3 23. Qxd7 Qxd7 24. Rxd7 e2 0-1

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "5"]
[White "Strijbis, P."]
[Black "Donker, Gerard"]
[Result "1-0"]
[ECO "D18"]
[PlyCount "47"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nc3 c6 4. Nf3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Nbd7 8. 0-0 Nb6 9. Bb3 Be7 10. Qe2 Nbd5 11. Ne5 0-0 12. f3 Bd6 13. Nc4 Bb4 14. Bd2 Bg6 15. e4 Nxc3 16. bxc3 Be7 17. Ne5 c5 18. Be3 cxd4 19. cxd4 Rc8 20. Rac1 Ba3 21. Rc4 Qb6 22. Qa2 Bd6 23. Bf2 Qd8 24. Nxg6 1-0

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "2"]
[White "Van Tellingen, Frank"]
[Black "Donker, Gerard"]
[Result "0-1"]
[ECO "C43"]
[PlyCount "36"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Nxe5 d5 5. Bd3 c6 6. 0-0 Nd7 7. Qe2 Nxe5 8. Bxe4 Qe7 9. dxe5 dxe4 10. Qxe4 g6 11. b3 Bf5 12. Qe2 Bg7 13. Ba3 Qxe5 14. Qxe5+ Bxe5 15. Re1 0-0-0 16. c3 Rhe8 17. g3 Bxg3 18. Be7 Bd6 0-1

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "4"]
[White "Woestenburg, Jochem"]
[Black "Donker, Gerard"]
[Result "1/2-1/2"]
[ECO "D18"]
[PlyCount "63"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[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. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Nbd7 8. 0-0 Be7 9. Qe2 Nb6 10. Ba2 Nbd5 11. Nxd5 cxd5 12. Bd2 0-0 13. Nh4 Bc2 14. Nf3 a6 15. a5 Ne4 16. Bc3 Nxc3 17. bxc3 Bg6 18. Bb1 Bh5 19. Qc2 f5 20. Ne5 Rc8 21. Qb3 Qc7 22. Rc1 Bd6 23. f4 Be2 24. Bd3 Bxd3 25. Nxd3 Qc4 26. Qxc4 Rxc4 27. Nb2 Rc6 28. c4 dxc4 29. Rxc4 Rfc8 30. Raa4 Kf7 31. Rxc6 Rxc6 32. Rc4 1/2-1/2

[Event "Leiden op"]
[Site "Leiden"]
[Date "1993.02.19"]
[Round "1"]
[White "Jonkman, Harmen"]
[Black "Donker, Gerard"]
[Result "1-0"]
[ECO "C32"]
[WhiteElo "2270"]
[BlackElo "1760"]
[PlyCount "33"]
[EventDate "1993.02.19"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 exd3 5. Bxd3 Qxd5 6. Nc3 Qd8 7. Qe2+ Qe7 8. Be3 Bg4 9. Nf3 Nf6 10. 0-0-0 Nbd7 11. h3 Bxf3 12. Qxf3 0-0-0 13. Bxa7 Nc5 14. Bxc5 Qxc5 15. Ba6 Nd5 16. Nxd5 bxa6 17. Nb6+ 1-0

[Event "Haarlem AKN op 02nd"]
[Site "Haarlem"]
[Date "1993.??.??"]
[Round "3"]
[White "Ooteman, Jan"]
[Black "Donker, Gerard"]
[Result "1/2-1/2"]
[ECO "E57"]
[PlyCount "33"]
[EventDate "1993.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 g6 7. Bd3 Bg7 8. 0-0 0-0 9. Re1 Nc6 10. Bf4 a6 11. a3 dxc4 12. Bxc4 b5 13. Bb3 Bb7 14. Rc1 Na5 15. Ba2 Rc8 16. Ne5 Nd5 17. Qd2 1/2-1/2

