[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "3"]
[White "Benning, Tijmen Jan"]
[Black "Weijers, Mark"]
[Result "1-0"]
[ECO "A20"]
[PlyCount "59"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nc6 3. c4 Nf6 4. cxd5 Nxd5 5. Bg2 e5 6. d3 Bc5 7. 0-0 0-0 8. Nxe5 Nxe5 9. d4 Nb4 10. a3 Qxd4 11. Qxd4 Bxd4 12. axb4 c6 13. Nc3 Bg4 14. Re1 Rfe8 15. Bf4 Nc4 16. e3 Bf6 17. h3 Be6 18. e4 Nxb2 19. e5 Be7 20. b5 Bb4 21. Re3 Nc4 22. Rf3 Bxc3 23. Rxc3 Bd5 24. bxc6 Bxg2 25. Kxg2 b5 26. Ra6 Re6 27. Rd3 Nb6 28. Rxa7 h6 29. Rxa8+ Nxa8 30. Rd8+ 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "5"]
[White "De Hoop, Thomas"]
[Black "Weijers, Mark"]
[Result "1/2-1/2"]
[ECO "E85"]
[PlyCount "71"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. f3 g6 4. c4 Bg7 5. Nc3 0-0 6. Be3 Nc6 7. Qd2 e5 8. d5 Ne7 9. Nge2 Ne8 10. g4 a6 11. h4 f5 12. g5 fxe4 13. fxe4 Bg4 14. Bg2 c6 15. 0-0-0 Qa5 16. b3 b5 17. cxb5 axb5 18. Kb1 c5 19. Rdf1 Rxf1+ 20. Rxf1 Nc8 21. Nc1 Nb6 22. Nd1 b4 23. Qf2 Ra7 24. Nb2 Bc8 25. h5 Ba6 26. h6 Bxf1 27. hxg7 Kxg7 28. Bxf1 Rf7 29. Qg2 Nc7 30. Nc4 Nxc4 31. bxc4 b3 32. Bd2 bxa2+ 33. Nxa2 Qa3 34. Qh3 Rf3 35. Qd7+ Kg8 36. Qc8+ 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "9"]
[White "Sparenberg, Jeroen"]
[Black "Weijers, Mark"]
[Result "0-1"]
[ECO "B07"]
[PlyCount "58"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bd3 Nc6 5. Nf3 Bg4 6. Be3 e5 7. d5 Ne7 8. h3 Bd7 9. 0-0 Bg7 10. Nd2 0-0 11. Ne2 Nh5 12. c4 f5 13. f3 f4 14. Bf2 g5 15. g4 fxg3 16. Nxg3 Nxg3 17. Bxg3 Bxh3 18. Rf2 Ng6 19. Rh2 Bd7 20. Kg2 Qf6 21. Qh1 Nf4+ 22. Bxf4 exf4 23. Rb1 Rf7 24. Rxh7 Qd4 25. Qh5 Qxd3 26. Rh1 Qxd2+ 27. Kf1 Qd1+ 28. Kf2 Bd4+ 29. Kg2 Qe2# 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "1"]
[White "Van Dommelen, Martin"]
[Black "Weijers, Mark"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "51"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. g3 Bg7 5. Bg2 0-0 6. Nge2 e5 7. 0-0 Nbd7 8. h3 c5 9. d5 a6 10. a4 Rb8 11. Be3 b5 12. axb5 axb5 13. Qd2 Nb6 14. b3 Bd7 15. Bh6 b4 16. Bxg7 Kxg7 17. Nd1 Bb5 18. Ne3 Qd7 19. f4 Nh5 20. Kh2 exf4 21. Nxf4 Nxg3 22. Kxg3 Bxf1 23. Rxf1 Rfc8 24. Ng4 c4 25. Qd4+ Kf8 26. Ne6+ 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "6"]
[White "Weijers, Mark"]
[Black "De Bruijn, Thijs"]
[Result "0-1"]
[ECO "A04"]
[PlyCount "50"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 e6 2. g3 Nc6 3. Bg2 Nf6 4. d3 Bc5 5. 0-0 b6 6. e4 Bb7 7. e5 Ng4 8. d4 Be7 9. c4 Ba6 10. b3 Rc8 11. Nc3 h5 12. h3 Nh6 13. Ne4 Nf5 14. Re1 d5 15. exd6 cxd6 16. d5 exd5 17. Qxd5 Qd7 18. Neg5 0-0 19. Ne5 Nxe5 20. Rxe5 Rc5 21. Rxf5 Rxd5 22. Rxd5 Bb7 23. Rd3 Bxg2 24. Kxg2 Bf6 25. Rb1 Qf5 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "4"]
[White "Weijers, Mark"]
[Black "Den Hartog, Tim"]
[Result "0-1"]
[ECO "A16"]
[PlyCount "76"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d3 g6 3. g3 Bg7 4. Bg2 c6 5. c4 0-0 6. 0-0 d5 7. Nc3 Na6 8. cxd5 Nxd5 9. Nxd5 Qxd5 10. a3 Qd8 11. Qc2 Nc7 12. Rb1 Be6 13. e4 Nb5 14. Be3 Nd4 15. Nxd4 Bxd4 16. b4 Qb6 17. Rfe1 f6 18. Qa4 Rfd8 19. b5 c5 20. Kh1 Bxe3 21. Rxe3 Rd4 22. Qc2 Rc8 23. Bf1 Qa5 24. Qb2 b6 25. f4 Kf7 26. Rf3 Rcd8 27. f5 gxf5 28. Rxf5 Bxf5 29. exf5 c4 30. Qe2 cxd3 31. Qe6+ Kf8 32. Re1 Qxe1 33. Qxe1 d2 34. Qd1 Re4 35. Kg2 Re1 36. Qh5 d1Q 37. Qh6+ Kg8 38. Bc4+ Rd5 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "2"]
[White "Weijers, Mark"]
[Black "Oude, Alink Mark"]
[Result "1-0"]
[ECO "A07"]
[PlyCount "141"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 Nc6 2. d3 d5 3. g3 e5 4. Bg2 f6 5. 0-0 Be6 6. Nc3 a6 7. e4 d4 8. Ne2 Qd7 9. Ne1 Bc5 10. f4 g6 11. Nf3 0-0-0 12. a3 Nge7 13. b4 Ba7 14. Bd2 h5 15. a4 exf4 16. Nxf4 Bg4 17. b5 Nb8 18. Qb1 g5 19. bxa6 Nxa6 20. Nd5 Nxd5 21. exd5 h4 22. gxh4 gxh4 23. Qb2 Bxf3 24. Bxf3 Rdg8+ 25. Kh1 Qd6 26. Be4 Rg7 27. Bf5+ Kb8 28. Bf4 Qb4 29. Rab1 Qxb2 30. Rxb2 Ka8 31. Rfb1 b6 32. d6 cxd6 33. Bxd6 Kb7 34. a5 Rd8 35. Be4+ Kc8 36. Bf5+ Kb7 37. axb6 Rxd6 38. Be4+ Kc8 39. bxa7 Rxa7 40. Bb7+ Kc7 41. Rg1 Nc5 42. Rg7+ Rd7 43. Rxd7+ Nxd7 44. Be4 Kd6 45. Rb4 Ke5 46. Rb5+ Kf4 47. Kg2 Ra2 48. Rf5+ Ke3 49. Rf3+ Kd2 50. c4 Kc3+ 51. Rf2 Rxf2+ 52. Kxf2 Ne5 53. c5 Nd7 54. c6 Nb6 55. c7 Kd2 56. Kf3 Ke1 57. Kg4 Kf2 58. Kxh4 Ke3 59. Kg4 Nc8 60. h4 Nd6 61. Bf5 Ke2 62. h5 Kd2 63. h6 Nf7 64. c8Q Nxh6+ 65. Kh5 Nf7 66. Kg6 Ne5+ 67. Kxf6 Nxd3 68. Bxd3 Kxd3 69. Qc1 Ke2 70. Qc2+ Ke3 71. Qd1 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "8"]
[White "Weijers, Mark"]
[Black "Wezenaar, Femke"]
[Result "1-0"]
[ECO "A08"]
[PlyCount "75"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 e6 2. g3 d5 3. Bg2 c5 4. d3 Nc6 5. 0-0 Bd6 6. Nc3 Nf6 7. Re1 Bd7 8. e4 dxe4 9. Nxe4 Nxe4 10. Rxe4 Qc7 11. a3 Ne5 12. Nxe5 Bxe5 13. Qh5 Bf6 14. Rc4 Bd4 15. c3 Be5 16. d4 Bf6 17. Qxc5 Qxc5 18. dxc5 Bc6 19. Bxc6+ bxc6 20. Bf4 Rd8 21. Bd6 Be7 22. Rd1 Rd7 23. a4 0-0 24. Kg2 Rfd8 25. Rcd4 Kf8 26. Bxe7+ Kxe7 27. Rxd7+ Rxd7 28. Rxd7+ Kxd7 29. b4 Kc7 30. c4 Kb7 31. Kf3 a6 32. b5 a5 33. g4 h6 34. Ke4 f6 35. h4 g6 36. f4 Kc7 37. g5 hxg5 38. hxg5 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "7"]
[White "Witkamp, Jarno"]
[Black "Weijers, Mark"]
[Result "1-0"]
[ECO "B09"]
[PlyCount "129"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 c6 5. Nf3 Bg7 6. Be2 0-0 7. 0-0 Bg4 8. e5 dxe5 9. dxe5 Nd5 10. Bc4 e6 11. Ne4 b5 12. Be2 Qb6+ 13. Kh1 Rd8 14. Qe1 Bf5 15. Nd6 Bxc2 16. Bd2 a5 17. Ng5 Rd7 18. Rc1 Bf5 19. g4 Rxd6 20. gxf5 Rd7 21. fxe6 fxe6 22. Bg4 Nc7 23. Be3 Qb7 24. Bc5 Nba6 25. Bd6 Re8 26. Bf3 Nd5 27. Qh4 h6 28. Ne4 Rf7 29. Nf6+ Bxf6 30. exf6 Kh7 31. Rg1 Rg8 32. Rg2 Nxf6 33. Be5 Nd5 34. Rcg1 Ne7 35. Qh3 Nc5 36. Bd6 Nd3 37. Qxe6 Rxf4 38. Be4 Nf2+ 39. Rxf2 Rxf2 40. Bxe7 Rg7 41. Bf6 Qc7 42. Be5 Qf7 43. Qxf7 Rfxf7 44. Bxg7 Rxg7 45. Bxc6 g5 46. Rd1 b4 47. Rd7 Rxd7 48. Bxd7 Kg6 49. Kg2 Kf6 50. Kf3 h5 51. h3 Ke5 52. Be8 g4+ 53. hxg4 hxg4+ 54. Kxg4 Kd4 55. Kf4 Kd3 56. Ba4 Kd2 57. Ke4 b3 58. axb3 Kc1 59. Kd4 Kxb2 60. Kc4 Kc2 61. Kb5 Kc3 62. Kxa5 Kd4 63. b4 Kd5 64. b5 Kd6 65. Kb6 1-0

[Event "Brabant-ch U20"]
[Site "Kaatsheuvel"]
[Date "2000.12.30"]
[Round "7"]
[White "Blijlevens, Pim"]
[Black "Weijers, Mark"]
[Result "1-0"]
[ECO "E97"]
[PlyCount "49"]
[EventDate "2000.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. e4 Bg7 5. Nf3 0-0 6. Be2 Nh5 7. Ng5 h6 8. Bxh5 hxg5 9. Be2 e5 10. dxe5 Bxe5 11. Be3 Bxc3+ 12. bxc3 Be6 13. Qd2 f6 14. h4 gxh4 15. Rxh4 Kf7 16. 0-0-0 Nc6 17. Bd4 Ke8 18. Rh7 b6 19. Rdh1 Nxd4 20. cxd4 Bf7 21. Bg4 Qe7 22. d5 Qe5 23. Kd1 Ke7 24. f4 Qa1+ 25. Kc2 1-0

[Event "Brabant-ch U20"]
[Site "Kaatsheuvel"]
[Date "2000.12.29"]
[Round "6"]
[White "Severijnen, Arjon"]
[Black "Weijers, Mark"]
[Result "0-1"]
[ECO "B08"]
[PlyCount "56"]
[EventDate "2000.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bc4 Bg7 5. Nf3 0-0 6. 0-0 Nbd7 7. Qe2 e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Rd1 Qe7 11. Bg5 c6 12. Rd2 b5 13. Bb3 a5 14. a3 a4 15. Ba2 b4 16. Bxf6 Bxf6 17. axb4 Qxb4 18. Qf3 Bg5 19. Rdd1 Qxb2 20. Rdb1 Qxc2 21. Bb3 axb3 22. Rxa8 Bd2 23. Qd1 Bxc3 24. Qxc2 bxc2 25. Rc1 Rd8 26. Rxc8 Rxc8 27. Rxc2 Bd4 28. Kf1 c5 0-1

[Event "Brabant-ch U20"]
[Site "Kaatsheuvel"]
[Date "2000.12.29"]
[Round "5"]
[White "Weijers, Mark"]
[Black "Van Dort, Lars"]
[Result "0-1"]
[ECO "A07"]
[PlyCount "70"]
[EventDate "2000.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d3 d5 3. g3 Bf5 4. Bg2 Nbd7 5. 0-0 e5 6. Nbd2 c6 7. Nh4 Bg6 8. e4 dxe4 9. Nxe4 Bh5 10. Nxf6+ Nxf6 11. Qe1 Nd7 12. d4 Be7 13. Nf5 0-0 14. dxe5 Bg6 15. Bh3 Re8 16. e6 Nf6 17. exf7+ Bxf7 18. Qc3 Bf8 19. Bg5 Ne4 20. Bxd8 Nxc3 21. Bg5 Ne4 22. Be3 Be6 23. Kg2 Bd5 24. Kg1 g6 25. Nd4 Bg7 26. c3 a5 27. Rfe1 Nd6 28. Bf4 Nc4 29. Ne6 Nxb2 30. Nxg7 Kxg7 31. Be5+ Kf7 32. Rab1 Nd3 33. Rxb7+ Kg8 34. Rg7+ Kf8 35. Rxh7 Nxe1 0-1

[Event "Brabant-ch U20"]
[Site "Kaatsheuvel"]
[Date "2000.12.28"]
[Round "3"]
[White "Weijers, Mark"]
[Black "Van Weersel, Arlette"]
[Result "0-1"]
[ECO "C00"]
[PlyCount "50"]
[EventDate "2000.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 d5 2. d3 e6 3. g3 Nf6 4. Bg2 Be7 5. 0-0 0-0 6. Nbd2 c5 7. e4 Nc6 8. Ng5 d4 9. f4 Rb8 10. e5 Nd5 11. Nc4 b5 12. Qh5 Bxg5 13. fxg5 bxc4 14. dxc4 g6 15. Qh6 Nde7 16. Bxc6 Nxc6 17. Rf4 Nxe5 18. Kg2 Bb7+ 19. Kh3 Nf3 20. Rxf3 Bxf3 21. Bf4 Rxb2 22. Be5 f6 23. gxf6 Rxf6 24. Rf1 Qf8 25. Bxf6 Qxh6+ 0-1

[Event "Brabant-ch U20"]
[Site "Kaatsheuvel"]
[Date "2000.12.28"]
[Round "4"]
[White "Zegveld, Rick"]
[Black "Weijers, Mark"]
[Result "0-1"]
[ECO "B07"]
[PlyCount "93"]
[EventDate "2000.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d6 2. Nc3 Nf6 3. Bc4 g6 4. d3 Bg7 5. h3 Nbd7 6. Nf3 e5 7. 0-0 0-0 8. Bg5 c6 9. Qd2 Qc7 10. Ne2 Kh8 11. Ng3 d5 12. Bb3 Nc5 13. Bxf6 Bxf6 14. Qh6 Qd8 15. h4 Bg7 16. Qg5 f6 17. Qe3 d4 18. Qd2 a5 19. a3 Nxb3 20. cxb3 Qb6 21. b4 axb4 22. Qxb4 Qxb4 23. axb4 Bd7 24. Ra5 b6 25. Ra3 Rxa3 26. bxa3 Ra8 27. Ra1 Bf8 28. Rd1 Rxa3 29. h5 Ra4 30. Nh4 Kg7 31. b5 c5 32. Ne2 Ra5 33. Rc1 Bxb5 34. Rb1 Bxd3 35. Rxb6 Bxe2 36. Rb7+ Kh6 37. Rf7 Bg7 38. f3 Kxh5 39. Rxg7 Kxh4 40. Kh2 Bxf3 41. Rxh7+ Bh5 42. Rf7 Kg5 43. Kh3 c4 44. Rxf6 Kxf6 45. Kh4 c3 46. g4 Bxg4 47. Kxg4 0-1

[Event "Brabant-ch U20"]
[Site "Kaatsheuvel"]
[Date "2000.12.27"]
[Round "2"]
[White "Jans, Wouter"]
[Black "Weijers, Mark"]
[Result "0-1"]
[ECO "B09"]
[PlyCount "38"]
[EventDate "2000.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 0-0 6. Bd3 c5 7. e5 dxe5 8. dxe5 Nd5 9. Ne2 Nc6 10. 0-0 Qb6 11. Be4 Ndb4 12. c3 Rd8 13. Bd2 Nd3 14. Qc2 c4+ 15. Kh1 Nf2+ 16. Rxf2 Qxf2 17. Ned4 Nxd4 18. cxd4 Bg4 19. Be3 Qxe3 0-1

[Event "Brabant-ch U20"]
[Site "Kaatsheuvel"]
[Date "2000.12.27"]
[Round "1"]
[White "Weijers, Mark"]
[Black "Kodentsov, Grigori"]
[Result "0-1"]
[ECO "A11"]
[PlyCount "90"]
[EventDate "2000.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d3 d5 3. g3 Bg4 4. Bg2 Nbd7 5. 0-0 c6 6. c4 e6 7. Bf4 Be7 8. Nc3 0-0 9. Na4 Bxf3 10. Bxf3 a6 11. Rb1 b5 12. cxb5 axb5 13. Nc3 e5 14. Bg5 Nb6 15. a3 Nfd7 16. Bxe7 Qxe7 17. Qb3 Kh8 18. Rfc1 f5 19. Nxd5 cxd5 20. Bxd5 Nxd5 21. Qxd5 Nf6 22. Qxb5 f4 23. Rc5 fxg3 24. hxg3 Rae8 25. Rbc1 e4 26. Rc7 Qe6 27. Qg5 Re7 28. dxe4 Qxe4 29. Qc5 Ree8 30. Qg5 Re7 31. Qc5 Rfe8 32. Rxe7 Rxe7 33. Qc8+ Re8 34. Qc4 Qe5 35. b4 Ne4 36. Qc8 h6 37. Qg4 Nxf2 38. Kxf2 Qe3+ 39. Kg2 Qxc1 40. b5 Qb2 41. Qc4 Qxe2+ 42. Qxe2 Rxe2+ 43. Kf3 Ra2 44. Ke4 Rxa3 45. Kd5 Rxg3 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Fakkel, Ewout"]
[Black "Weijers, Mark"]
[Result "1/2-1/2"]
[ECO "A03"]
[PlyCount "68"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. f4 e6 2. g3 d5 3. Nf3 Nf6 4. Bg2 c5 5. d3 Nc6 6. 0-0 Be7 7. Nc3 0-0 8. e4 Qa5 9. Ne5 d4 10. Ne2 Bd7 11. Kh1 Qc7 12. Nxc6 Bxc6 13. Ng1 Nd7 14. f5 e5 15. Nf3 f6 16. Nh4 Rf7 17. Ng6 Nf8 18. Nh4 Bd6 19. g4 Qd8 20. Rf3 Rc7 21. Rg3 Kf7 22. g5 Ke8 23. Qh5+ Kd7 24. gxf6 gxf6 25. Bh6 Qe8 26. Bf3 Rd8 27. Qxe8+ Rxe8 28. Bh5 Rd8 29. Rag1 Kc8 30. Rg7 Be8 31. Bxe8 Rxe8 32. Rxc7+ Kxc7 33. Rg7+ Re7 34. Rg8 Rf7 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Hennink, Wouter"]
[Black "Weijers, Mark"]
[Result "1-0"]
[ECO "C10"]
[PlyCount "47"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Bd3 Be7 8. 0-0 0-0 9. Qe2 b6 10. g4 Bb7 11. g5 Nd5 12. a3 c5 13. h4 Qd7 14. Ne5 Qd8 15. c4 Nc7 16. Qh5 g6 17. Nxg6 hxg6 18. Bxg6 fxg6 19. Qxg6+ Kh8 20. Qh6+ Kg8 21. g6 Rf7 22. gxf7+ Kxf7 23. Qh5+ Kg8 24. Kh2 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Jekel, Pim"]
[Black "Weijers, Mark"]
[Result "0-1"]
[ECO "B23"]
[PlyCount "120"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. Nc3 d5 3. g3 d4 4. Nce2 c5 5. d3 Nc6 6. Bg2 Bd6 7. f4 e5 8. Nf3 Bd7 9. 0-0 Qc7 10. Bd2 Nge7 11. f5 f6 12. a3 g6 13. Nh4 gxf5 14. Nxf5 0-0-0 15. b4 h5 16. b5 Nb8 17. a4 Bxf5 18. exf5 Qd7 19. c4 Rdg8 20. Nc1 h4 21. g4 h3 22. Bf3 Nxf5 23. Be4 Nh6 24. Bxh6 Rxg4+ 25. Kh1 Rxe4 26. dxe4 Rxh6 27. Qf3 Qe6 28. Qf5 Qxf5 29. Rxf5 Nd7 30. a5 Rh4 31. Ne2 Rxe4 32. Ng3 Rh4 33. Rf2 Bf8 34. Nf5 Rh5 35. Ra3 Kd8 36. Ng3 Rh7 37. Ne4 Ke7 38. Rff3 Rh4 39. Nf2 e4 40. Rxh3 Rxh3 41. Rxh3 e3 42. Nd3 Ke6 43. Kg2 f5 44. Kf3 Kf6 45. Rh7 Bg7 46. Rh3 b6 47. a6 Kg5 48. Rg3+ Kf6 49. h4 Nf8 50. h5 Bh6 51. Rg2 Bg5 52. Rh2 Nh7 53. Nxc5 Ke7 54. Nd3 Kd6 55. Nf4 Kc5 56. Rc2 Bxf4 57. Kxf4 d3 58. Rh2 e2 59. Rh1 d2 60. Ke3 e1Q+ 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Van Hengel, Hugo G"]
[Black "Weijers, Mark"]
[Result "1-0"]
[ECO "C10"]
[PlyCount "23"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Nxf6+ Qxf6 6. Nf3 h6 7. Bd3 Bd6 8. 0-0 Nd7 9. Qe2 0-0 10. Qe4 Qf5 11. Qh4 Qf6 12. Bg5 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Weijers, Mark"]
[Black "De Vries, Paul"]
[Result "0-1"]
[ECO "B00"]
[PlyCount "78"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 b6 2. d4 Bb7 3. Bd3 Nf6 4. f3 e6 5. Ne2 c5 6. Be3 Nc6 7. 0-0 cxd4 8. Nxd4 Bc5 9. c3 0-0 10. Nd2 d5 11. Kh1 dxe4 12. Bxe4 Nxe4 13. Nxe4 Bxd4 14. Bxd4 Nxd4 15. Qxd4 Qxd4 16. cxd4 Rfd8 17. Rfd1 Rac8 18. Rd2 Rc4 19. Rad1 Bxe4 20. fxe4 e5 21. d5 Rxe4 22. d6 f6 23. d7 Kf8 24. Kg1 Rc4 25. Kf2 Ke7 26. Ke3 Rc7 27. Ke2 Rcxd7 28. Rxd7+ Rxd7 29. Rc1 g6 30. Rc8 f5 31. Rh8 Kd6 32. Rc8 Rc7 33. Rd8+ Ke6 34. Rd2 e4 35. Ke3 Ke5 36. g3 g5 37. Rf2 Rd7 38. Rf1 f4+ 39. gxf4+ gxf4+ 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Weijers, Mark"]
[Black "Kuijvenhoven, Marco"]
[Result "0-1"]
[ECO "C55"]
[PlyCount "62"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. Nc3 0-0 6. Be3 d6 7. Qd2 a6 8. 0-0 b5 9. Bb3 b4 10. Ne2 d5 11. exd5 Nxd5 12. Ng3 f5 13. Bg5 Bxg5 14. Qxg5 Qd7 15. Rae1 h6 16. Qd2 f4 17. Nxe5 Nxe5 18. Rxe5 c6 19. Nh5 f3 20. Nf4 fxg2 21. Nxg2 Qd6 22. Re3 Kh8 23. Rg3 Nf6 24. Re1 Bd7 25. Rg6 Bf5 26. Nh4 Qd7 27. Be6 Bxe6 28. Rxe6 Qxe6 29. Rxh6+ Kg8 30. Rg6 Kf7 31. Qxb4 Rae8 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Weijers, Mark"]
[Black "Verwiel, Eugene"]
[Result "0-1"]
[ECO "B01"]
[PlyCount "99"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nf3 Nxd5 4. Bc4 c6 5. d4 Bg4 6. Be3 e6 7. Nbd2 Be7 8. c3 Nd7 9. Qc2 Qc7 10. Bd3 a6 11. Bxh7 c5 12. Be4 c4 13. Bxd5 exd5 14. h3 g6 15. 0-0 Bf5 16. Qd1 0-0-0 17. Re1 Bd6 18. Nf1 f6 19. b3 Nb6 20. N3d2 g5 21. Qf3 Bd7 22. bxc4 g4 23. hxg4 Bh2+ 24. Nxh2 Qxh2+ 25. Kf1 Rde8 26. Rab1 Na4 27. Rb3 Qh1+ 28. Ke2 Qh4 29. Qxd5 Qxg4+ 30. Nf3 Bc6 31. Qd6 Rxe3+ 32. Kxe3 Qxg2 33. Qe6+ Kc7 34. Qe7+ Kb8 35. Qd6+ Ka8 36. Qg3 Bxf3 37. Qxg2 Bxg2 38. Rg1 Re8+ 39. Kd2 Bf3 40. Re1 Rxe1 41. Kxe1 Bc6 42. Kd2 b5 43. c5 Bd5 44. Ra3 Kb7 45. Kc2 Bc4 46. Kc1 Kc6 47. Kd2 a5 48. Ke3 Be6 49. Ke4 Bxa2 50. Kf5 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Weijers, Mark"]
[Black "Vissers, V."]
[Result "1-0"]
[ECO "B21"]
[PlyCount "51"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. f4 d6 3. Nf3 Nc6 4. d3 Bg4 5. g3 e6 6. Bg2 Nge7 7. Be3 g6 8. Nbd2 Bg7 9. c3 0-0 10. 0-0 b6 11. Qe1 Qc7 12. Nh4 Rad8 13. h3 Bxh3 14. Bxh3 d5 15. Bf2 dxe4 16. dxe4 f5 17. Nhf3 Rd7 18. e5 Rfd8 19. Nc4 Bf8 20. Ng5 Qb8 21. Nxe6 Re8 22. Nd6 Rxd6 23. exd6 Qxd6 24. Nxf8 Kxf8 25. Rd1 Nd5 26. Qd2 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "4"]
[White "Gerritse, Xanthine"]
[Black "Weijers, Mark"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "105"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. Ne2 Bg4 6. f3 Bh5 7. Bf4 Nf6 8. Bxd6 Qxd6 9. 0-0 Nbd7 10. c3 0-0-0 11. Ng3 g5 12. Nf5 Qf8 13. Re1 g4 14. Be2 Re8 15. Nd2 Qg8 16. fxg4 Bxg4 17. Bxg4 Qxg4 18. Qxg4 Nxg4 19. Ne7+ Kb8 20. Nxd5 h5 21. h3 c6 22. hxg4 Rxe1+ 23. Rxe1 cxd5 24. gxh5 Rxh5 25. Re7 Nb6 26. Rxf7 Na4 27. Nf3 Nxb2 28. g4 Rh8 29. g5 Rg8 30. Rf6 Na4 31. g6 Nxc3 32. Ne5 Ne2+ 33. Kf2 Nxd4 34. Rd6 Nc6 35. Nxc6+ bxc6 36. Rxc6 Kb7 37. Rf6 Kc7 38. Kf3 Kd7 39. Kf4 Ke7 40. Kg5 d4 41. Rf7+ Ke6 42. Rxa7 d3 43. Rb7 d2 44. Rb1 Rh8 45. g7 Rg8 46. Kg6 Rd8 47. Rd1 Ke7 48. Kh7 Rd3 49. g8Q Rh3+ 50. Kg7 Rg3+ 51. Kh8 Rxg8+ 52. Kxg8 Kd6 53. Rxd2+ 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "6"]
[White "Hoek, Martijn"]
[Black "Weijers, Mark"]
[Result "0-1"]
[ECO "C01"]
[PlyCount "102"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Be3 Be6 5. Nf3 Nd7 6. Bd3 Bd6 7. Nbd2 f5 8. Ng5 Qe7 9. f4 0-0-0 10. Qe2 h6 11. Ngf3 Re8 12. 0-0-0 Ngf6 13. h3 Bf7 14. Rhe1 Ne4 15. Kb1 Bh5 16. Rc1 Rhf8 17. c4 dxc4 18. Rxc4 Rf6 19. d5 Kb8 20. Nxe4 fxe4 21. Rxe4 Qxe4 22. Bxe4 Rxe4 23. Bxa7+ Kxa7 24. Qd1 Rxe1 25. Qxe1 Bxf3 26. gxf3 Rxf4 27. Qe3+ Nb6 28. Qc3 Rf6 29. a4 Nxd5 30. a5 Kb8 31. Qc4 Nb4 32. Qe4 Na6 33. Qe8+ Ka7 34. Qd7 Rxf3 35. Qxg7 Rxh3 36. Qd4+ Ka8 37. Qh8+ Nb8 38. a6 bxa6 39. Qg8 Rh2 40. Qd5+ Ka7 41. Qd4+ Kb7 42. Qd5+ Nc6 43. Qb3+ Nb4 44. Qf3+ c6 45. b3 a5 46. Qf7+ Bc7 47. Kc1 h5 48. Kd1 h4 49. Ke1 h3 50. Kf1 Rh1+ 51. Kf2 h2 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "8"]
[White "Markus, Aernout"]
[Black "Weijers, Mark"]
[Result "0-1"]
[ECO "C18"]
[PlyCount "60"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qa5 7. Bd2 Qa4 8. Qg4 g6 9. Nf3 c4 10. Be2 Ne7 11. 0-0 Nbc6 12. Rfc1 Bd7 13. Bh6 Nf5 14. Bg5 Nce7 15. Nh4 0-0-0 16. Bf6 Rhg8 17. Nxf5 gxf5 18. Qh4 Ng6 19. Qxh7 Rdf8 20. h4 Qa5 21. h5 Nf4 22. Bf1 Nh3+ 23. Kh2 Nxf2 24. Bg7 Ng4+ 25. Kh1 Re8 26. Be2 Nf2+ 27. Kh2 Qxc3 28. h6 Ne4 29. Qxg8 Qg3+ 30. Kh1 Rxg8 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "2"]
[White "Verwer, Menno"]
[Black "Weijers, Mark"]
[Result "0-1"]
[ECO "C01"]
[PlyCount "66"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. Nc3 d5 3. exd5 exd5 4. d4 c6 5. Nf3 Bd6 6. Bd3 Ne7 7. 0-0 Bg4 8. h3 Bh5 9. Bg5 f6 10. Bh4 Qc7 11. g4 Bg6 12. Ne2 Nd7 13. Bg3 0-0-0 14. Qd2 h5 15. Nf4 hxg4 16. hxg4 Bf7 17. Rfe1 g5 18. Rxe7 gxf4 19. Rxf7 fxg3 20. fxg3 Bxg3 21. Bf5 Kb8 22. Qg2 Bf4 23. Re1 Rhf8 24. Rxd7 Rxd7 25. Bxd7 Qxd7 26. g5 fxg5 27. Nxg5 Rg8 28. Re5 Bxe5 29. dxe5 Qf5 30. Kh1 Rxg5 31. Qe2 Qh3+ 32. Qh2 Qxh2+ 33. Kxh2 Rxe5 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "9"]
[White "Weijers, Mark"]
[Black "Goossen, Gerard"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "70"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Bg5 d6 6. Nc3 Be6 7. Bb3 Ne7 8. Qd2 c6 9. 0-0 Ng6 10. Na4 Bb6 11. Nxb6 Qxb6 12. Kh1 h6 13. Be3 Qc7 14. Ne1 d5 15. f3 0-0-0 16. Qf2 b6 17. c4 d4 18. Bd2 Nh5 19. a4 a5 20. Ba2 c5 21. Nc2 Nhf4 22. Ne1 Qc6 23. Bb1 f5 24. Qg3 Qc7 25. Bxf4 Nxf4 26. Qf2 Rdf8 27. Qd2 Qf7 28. Nc2 fxe4 29. fxe4 Qh5 30. b4 cxb4 31. Nxb4 Ne2 32. Ba2 Ng3+ 33. Kg1 Rxf1+ 34. Rxf1 Nxf1 35. Kxf1 Qxh2 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "3"]
[White "Weijers, Mark"]
[Black "Hendriks, Victor"]
[Result "0-1"]
[ECO "B01"]
[PlyCount "28"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nf3 Nxd5 4. d4 Bf5 5. c3 e6 6. Bg5 Be7 7. g3 Bxg5 8. Nxg5 Qxg5 9. f4 Qg6 10. Nd2 Be4 11. Rg1 Nxf4 12. gxf4 Qxg1 13. Nxe4 Qxh2 14. Qf3 Qxb2 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "1"]
[White "Weijers, Mark"]
[Black "Rijnaarts, Sjef"]
[Result "0-1"]
[ECO "B21"]
[PlyCount "64"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. f4 Nc6 3. Nf3 e6 4. g3 d5 5. exd5 exd5 6. d4 Bg4 7. Bg2 Nxd4 8. 0-0 Nxf3+ 9. Bxf3 Bxf3 10. Qxf3 Be7 11. Be3 Nf6 12. c3 0-0 13. Nd2 Qd7 14. f5 Rfe8 15. Bg5 Ne4 16. Nxe4 dxe4 17. Qh5 Bxg5 18. Qxg5 f6 19. Qe3 Qe7 20. Rf4 g5 21. Rf2 Rad8 22. Re1 Rd3 23. Qxd3 exd3 24. Rxe7 Rxe7 25. c4 g4 26. Rd2 Re3 27. Kf2 Rf3+ 28. Ke1 Kg7 29. Rf2 Kh6 30. Rg2 Kg5 31. Kd2 Kxf5 32. b3 Ke4 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "5"]
[White "Weijers, Mark"]
[Black "Thoolen, Fien"]
[Result "1-0"]
[ECO "B01"]
[PlyCount "25"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Nf3 c5 5. d4 cxd4 6. Nxd4 e5 7. Nb3 Qb6 8. Bg5 Nf6 9. Bc4 Bg4 10. Qd3 Nc6 11. 0-0 Nd4 12. Bxf6 Nxb3 13. Bb5+ 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "7"]
[White "Weijers, Mark"]
[Black "Wolbers, Joan"]
[Result "0-1"]
[ECO "B13"]
[PlyCount "37"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nf6 5. Bg5 Qb6 6. b3 Nc6 7. c3 e6 8. Nf3 Be7 9. 0-0 0-0 10. Qc2 h6 11. Bh4 Bd7 12. Ne5 Be8 13. f4 Rc8 14. Qe2 Nxd4 15. Qf2 Bc5 16. Kh1 Nxb3 17. Qg3 Nh5 18. Qg4 f5 19. Qxf5 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "7"]
[White "De Witte, Marieke"]
[Black "Weijers, Mark"]
[Result "1/2-1/2"]
[ECO "B24"]
[PlyCount "75"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nc3 Nf6 4. Bd2 c5 5. g3 Nc6 6. Bg2 Be7 7. Nf3 d4 8. Ne2 b5 9. 0-0 Rb8 10. Ne1 Qb6 11. f4 Ba6 12. Bf3 Rd8 13. f5 e5 14. Rf2 c4 15. Rg2 c3 16. Bc1 cxb2 17. Bxb2 Na5 18. Kh1 h5 19. Bc1 Rc8 20. Bg5 Kd7 21. Nc1 Rcg8 22. Bxf6 Qxf6 23. Bxh5 Rh7 24. Bg4 Rgh8 25. Nf3 Ke8 26. Nb3 Nc6 27. Qe2 Bc8 28. Rf1 Bd7 29. Nh4 a6 30. Nd2 Kd8 31. Qd1 Bb4 32. Qb1 Bc3 33. Qb3 Ke7 34. Qd5 Rd8 35. Qc5+ Ke8 36. Qa3 Bc8 37. Qc1 Ke7 38. Rff2 1/2-1/2

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "2"]
[White "Tangelder, H."]
[Black "Weijers, Mark"]
[Result "0-1"]
[ECO "C01"]
[PlyCount "102"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. Nc3 d5 3. d4 Bb4 4. exd5 exd5 5. Qe2+ Qe7 6. Bd2 c6 7. Qxe7+ Nxe7 8. a3 Bd6 9. Nf3 Bf5 10. 0-0-0 Nd7 11. h3 0-0-0 12. g4 Bg6 13. Be3 h5 14. gxh5 Bxh5 15. Be2 Nf6 16. Rd3 Ne4 17. Ng5 Nxg5 18. Bxg5 Bxe2 19. Nxe2 Rde8 20. Rf3 Rhf8 21. Bf4 Bxf4+ 22. Nxf4 g6 23. h4 Nf5 24. c3 Nd6 25. Kc2 Re4 26. Nd3 Kd8 27. Rf6 Ke7 28. Rf3 Rh8 29. Rf4 Rxf4 30. Nxf4 Kf6 31. Ng2 Nf5 32. Kd2 Nd6 33. Rh3 Rh5 34. f3 Kf5 35. Rg3 g5 36. hxg5 Rxg5 37. Rxg5+ Kxg5 38. a4 Nf5 39. Kd3 Nh4 40. Nxh4 Kxh4 41. f4 f5 42. b4 Kg4 43. Ke3 b6 44. a5 bxa5 45. bxa5 a6 46. Kf2 Kxf4 47. Ke2 Kg3 48. Kd3 f4 49. c4 f3 50. cxd5 cxd5 51. Kc3 f2 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "4"]
[White "Tybout, Kees"]
[Black "Weijers, Mark"]
[Result "1-0"]
[ECO "E10"]
[PlyCount "35"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 e6 2. c4 c5 3. Nf3 Nf6 4. Bf4 cxd4 5. Nxd4 d5 6. e3 dxc4 7. Bxc4 e5 8. Bb5+ Nbd7 9. Bxe5 Bb4+ 10. Nc3 Bxc3+ 11. bxc3 0-0 12. 0-0 Ne4 13. Bd3 Nec5 14. Bd6 Nxd3 15. Bxf8 Nxf2 16. Rxf2 Qxf8 17. Qb3 b6 18. Qd5 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "5"]
[White "Van Zutphen, Jimmy"]
[Black "Weijers, Mark"]
[Result "1/2-1/2"]
[ECO "C01"]
[PlyCount "69"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. Ne2 Ne7 6. Bf4 Bf5 7. Nbc3 c6 8. 0-0 0-0 9. Bxd6 Qxd6 10. Ng3 Bxd3 11. Qxd3 Nd7 12. Rfe1 Ng6 13. Re3 Nf6 14. h3 Rfe8 15. Rae1 Qd7 16. Qd2 Rxe3 17. Rxe3 Re8 18. Qe1 Nf4 19. Rxe8+ Qxe8 20. Qe3 Qxe3 21. fxe3 Ne6 22. Nf5 Kf8 23. Nd6 Nd8 24. e4 dxe4 25. Ncxe4 Nxe4 26. Nxe4 Ke7 27. Kf2 h6 28. Ke3 Ke6 29. c4 b6 30. g4 Nb7 31. a3 Nd6 32. Nxd6 Kxd6 33. Ke4 g6 34. a4 a6 35. Kf4 1/2-1/2

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "1"]
[White "Weijers, Mark"]
[Black "Houben, Jaap"]
[Result "0-1"]
[ECO "B07"]
[PlyCount "62"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Bd3 e5 4. dxe5 dxe5 5. Nc3 Nc6 6. Nge2 Bc5 7. Bg5 Bxf2+ 8. Kxf2 Ng4+ 9. Kg1 Qxg5 10. Qc1 Qxc1+ 11. Rxc1 Be6 12. Bb5 Ke7 13. Bxc6 bxc6 14. h3 Nf6 15. Kf2 Rhd8 16. Ke3 Nd7 17. g4 Nc5 18. b3 Rd7 19. Rhf1 Rad8 20. Rce1 f6 21. Rh1 Rd6 22. Rh2 Bf7 23. Ng3 g6 24. Rf2 Nd3 25. cxd3 Rxd3+ 26. Ke2 Rxg3 27. Rf3 Rd2+ 28. Kxd2 Rxf3 29. Rh1 Be6 30. Nd1 h5 31. Ke2 hxg4 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "6"]
[White "Weijers, Mark"]
[Black "Van Dijk, Timon"]
[Result "0-1"]
[ECO "B02"]
[PlyCount "58"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 d5 3. exd5 Nxd5 4. Nxd5 Qxd5 5. Nf3 e5 6. d3 c5 7. Be2 Nc6 8. 0-0 Bd6 9. Be3 b6 10. c3 Bb7 11. d4 exd4 12. cxd4 cxd4 13. Bxd4 Nxd4 14. Qxd4 Qxd4 15. Bb5+ Ke7 16. Nxd4 Kf6 17. b3 a6 18. Bc6 Bxc6 19. Nxc6 Rac8 20. Nd4 Rhd8 21. Nf3 Rc2 22. a4 Bb4 23. Rab1 a5 24. g3 Bc5 25. h4 h6 26. Kg2 Ra2 27. Kg1 Re8 28. Ne1 Rd8 29. Nf3 Rd3 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "3"]
[White "Weijers, Mark"]
[Black "Verbaken, Onno"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "42"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. Nf3 Nc6 5. Be2 e5 6. d3 Bf5 7. 0-0 0-0-0 8. Ne1 c4 9. d4 exd4 10. cxd4 Nxd4 11. Nc3 Qe6 12. Bd2 Bb4 13. Bf3 Bd3 14. Nxd3 Nxf3+ 15. Qxf3 Rxd3 16. Qf4 g5 17. Qxg5 Nf6 18. Rac1 Rg8 19. Qf4 Bd6 20. Qh6 Rg6 21. Rfe1 Qg4 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "8"]
[White "Weijers, Mark"]
[Black "Versmissen, Jorie"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "70"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nc3 d6 6. Bg5 Be6 7. Bb3 Nd4 8. Nxd4 Bxd4 9. Qd2 c6 10. 0-0 0-0 11. Kh1 Bxc3 12. Qxc3 Re8 13. Qd2 d5 14. f3 h6 15. Be3 Qe7 16. Qf2 Bd7 17. Bc5 Qd8 18. Bxa7 d4 19. Bc5 Qa5 20. Bxd4 exd4 21. Qxd4 Rad8 22. f4 Qh5 23. Qf2 Be6 24. f5 Bxb3 25. axb3 Rf8 26. Rfe1 g6 27. fxg6 fxg6 28. Qg3 Rf7 29. h3 Rdf8 30. e5 Nd5 31. e6 Re7 32. Re4 Nc7 33. Qd6 Rfe8 34. Ra7 Nb5 35. Qd7 Nxa7 0-1

[Event "NED-ch U18"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "8"]
[White "Berghuis, Sander"]
[Black "Weijers, Mark"]
[Result "0-1"]
[ECO "D04"]
[PlyCount "54"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c6 3. e3 Nf6 4. Bd3 Bg4 5. 0-0 Nbd7 6. b3 e5 7. Be2 e4 8. Ne5 Nxe5 9. dxe5 Bxe2 10. Qxe2 Nd7 11. Bb2 Be7 12. Qh5 0-0 13. Qg4 Bg5 14. h4 Bxh4 15. e6 Bf6 16. Bxf6 Nxf6 17. exf7+ Rxf7 18. Qe6 Qe7 19. Qxe7 Rxe7 20. Nc3 Ng4 21. Rad1 Re5 22. Na4 Rc8 23. Nc3 Rf8 24. Rd2 Rf6 25. Na4 Rh5 26. Rfd1 Nh2 27. Re2 Nf3+ 0-1

[Event "NED-ch U18"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "5"]
[White "Goverde, Rene"]
[Black "Weijers, Mark"]
[Result "1-0"]
[ECO "A22"]
[PlyCount "53"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. c4 e5 2. a3 Nf6 3. Nc3 c6 4. e3 d5 5. d4 e4 6. f3 Bf5 7. Nge2 exf3 8. gxf3 Be7 9. Ng3 Bg6 10. e4 dxe4 11. fxe4 Qc7 12. Qf3 h6 13. Bf4 Qd8 14. Rd1 Nbd7 15. Bh3 Qb6 16. Na4 Qa5+ 17. Nc3 Qb6 18. Qe2 Nh7 19. Bf5 Ndf6 20. h4 0-0 21. h5 Bxf5 22. Nxf5 Rfe8 23. Qg2 Bf8 24. Nxg7 Rec8 25. Rg1 Kh8 26. Ne6 Ng5 27. Nxg5 1-0

[Event "NED-ch U18"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "3"]
[White "Koning, Regina"]
[Black "Weijers, Mark"]
[Result "0-1"]
[ECO "C57"]
[PlyCount "72"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nd4 6. c3 Nf5 7. Qe2 Bd6 8. d4 Qe7 9. Bb5+ Bd7 10. Bxd7+ Nxd7 11. Nf3 exd4 12. Nxd4 Nxd4 13. Qxe7+ Bxe7 14. cxd4 Nf6 15. Nc3 Bb4 16. 0-0 Bxc3 17. bxc3 Nxd5 18. Re1+ Kd7 19. c4 Nb6 20. c5 Nd5 21. Ba3 Rhe8 22. h3 c6 23. Rab1 Kc7 24. Rxe8 Rxe8 25. Rd1 Re2 26. Bc1 Nc3 27. Bf4+ Kd7 28. Rd3 Nxa2 29. Re3 Rxe3 30. fxe3 Nc3 31. Kf2 Ne4+ 32. Kf3 f5 33. g4 Ke6 34. Bg3 Nxg3 35. Kxg3 fxg4 36. hxg4 a5 0-1

[Event "NED-ch U18"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "7"]
[White "Van Dijk, Timon"]
[Black "Weijers, Mark"]
[Result "0-1"]
[ECO "C57"]
[PlyCount "59"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nd4 6. Nc3 Bd6 7. d3 0-0 8. Nge4 h6 9. 0-0 Bg4 10. f3 Bh5 11. Be3 a6 12. Nxf6+ Qxf6 13. Kh1 Qh4 14. Ne4 f5 15. Nxd6 cxd6 16. a4 Rf6 17. c3 Nxf3 18. gxf3 Qh3 19. Rf2 e4 20. dxe4 fxe4 21. Be2 Raf8 22. Qf1 Bxf3+ 23. Bxf3 Rxf3 24. Qxh3 Rxh3 25. Rxf8+ Kxf8 26. Re1 Ke7 27. Kg2 Rf3 28. Bf2 Rf4 29. Bg3 Rg4 30. h3 0-1

[Event "NED-ch U18"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "2"]
[White "Weijers, Mark"]
[Black "Azadmanesh, Moosa"]
[Result "0-1"]
[ECO "B90"]
[PlyCount "54"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a4 e6 7. a5 b5 8. axb6 Qxb6 9. Nb3 Bb7 10. Bd3 Nbd7 11. Be3 Qc7 12. 0-0 Be7 13. f4 0-0 14. f5 Ne5 15. Rf4 d5 16. fxe6 fxe6 17. exd5 Nxd3 18. Qxd3 Nxd5 19. Rxf8+ Rxf8 20. Nxd5 Bxd5 21. Qd2 Bd6 22. h3 Bh2+ 23. Kh1 Qg3 24. Bg1 Bxg1 25. Kxg1 Rf6 26. Re1 Bxg2 27. Nd4 Bd5+ 0-1

[Event "NED-ch U18"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "6"]
[White "Weijers, Mark"]
[Black "Stevens, Nathalie"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "43"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 d6 5. Nc3 Nf6 6. Bg5 Bg4 7. Nd5 Nd4 8. h3 Nxf3+ 9. gxf3 c6 10. fxg4 cxd5 11. Bxd5 Qb6 12. Bxf6 gxf6 13. 0-0 Rg8 14. Bb3 Bd4 15. c3 Bc5 16. Kg2 h5 17. f3 Qc7 18. Qe1 Ke7 19. Qh4 hxg4 20. fxg4 Rh8 21. Qxf6+ Ke8 22. Qxh8+ 1-0

[Event "NED-ch U18"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "9"]
[White "Weijers, Mark"]
[Black "Tjiam, Paul"]
[Result "1/2-1/2"]
[ECO "B74"]
[PlyCount "45"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 0-0 8. 0-0 d6 9. Nb3 Bd7 10. f4 Rc8 11. g4 Ra8 12. f5 Qc8 13. g5 Ne8 14. fxg6 fxg6 15. Rxf8+ Bxf8 16. Bd4 Nxd4 17. Nxd4 Qc5 18. Kh1 Qxg5 19. Bc4+ Kh8 20. Qd3 Nc7 21. Rg1 Qf6 22. Nf3 Be6 23. Nd4 1/2-1/2

[Event "NED-ch U18"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "4"]
[White "Weijers, Mark"]
[Black "Wortel, Marten"]
[Result "0-1"]
[ECO "B07"]
[PlyCount "36"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bd3 e5 5. Nge2 Bg7 6. f4 0-0 7. 0-0 Nfd7 8. dxe5 dxe5 9. f5 Nc5 10. Nd5 gxf5 11. Nec3 fxe4 12. Bxe4 c6 13. Nf6+ Bxf6 14. Qxd8 Bxd8 15. Bh6 Re8 16. Rf3 Nxe4 17. Nxe4 Re6 18. Rg3+ Rg6 0-1

[Event "NED-ch U14"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "4"]
[White "Hendriks, Albert"]
[Black "Weijers, Mark"]
[Result "1-0"]
[ECO "D12"]
[PlyCount "57"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Bf5 4. e3 e6 5. Bd3 Bg4 6. Nc3 Nf6 7. h3 Bh5 8. Bd2 Bd6 9. cxd5 exd5 10. Be2 Bg6 11. 0-0 Nbd7 12. Rc1 0-0 13. Qb3 Rb8 14. Bd1 Ne4 15. Bc2 Ndf6 16. Nxe4 Nxe4 17. Bxe4 Bxe4 18. Ne1 Qg5 19. Bb4 Bxb4 20. Qxb4 Rfe8 21. Rc3 Re6 22. Ra3 a6 23. Qb3 Bxg2 24. f4 Qg3 25. Nxg2 Rg6 26. Qc2 Re8 27. e4 Qh4 28. e5 f6 29. Qxg6 1-0

[Event "NED-ch U14"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "5"]
[White "Van de Laar, Clement"]
[Black "Weijers, Mark"]
[Result "1-0"]
[ECO "D11"]
[PlyCount "65"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 Bg4 5. e3 e6 6. Be2 Bd6 7. 0-0 0-0 8. b3 Nbd7 9. Bb2 Rc8 10. Qc2 Qc7 11. h3 Bf5 12. Bd3 Bxd3 13. Qxd3 b6 14. Rac1 c5 15. Nb5 Qb8 16. Nd2 Rfe8 17. Rfd1 Be7 18. Nc3 Qb7 19. Ne2 dxc4 20. Nxc4 Red8 21. Ng3 Nd5 22. Qe2 Nb4 23. Ba1 Nc6 24. Ne4 Nf6 25. Nxf6+ Bxf6 26. dxc5 Bxa1 27. Rxa1 bxc5 28. Nd6 Rxd6 29. Rxd6 Qe7 30. Rad1 Nd4 31. Qa6 Rc7 32. exd4 cxd4 33. R6xd4 1-0

[Event "NED-ch U14"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "9"]
[White "Weijers, Mark"]
[Black "De Vries, Paul"]
[Result "1/2-1/2"]
[ECO "C01"]
[PlyCount "82"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nc6 5. c3 Nf6 6. Nf3 Qe7+ 7. Qe2 Qxe2+ 8. Bxe2 Bd6 9. Be3 Bf5 10. Nbd2 Ne4 11. Bb5 Nxd2 12. Bxc6+ bxc6 13. Nxd2 0-0 14. 0-0 Rab8 15. b3 Ba3 16. Nf3 Bb2 17. Rad1 Bxc3 18. Rc1 Ba5 19. Rxc6 Bd7 20. Rc5 Bb5 21. Rfc1 Bb4 22. Rxd5 Bd6 23. Ne5 Bxe5 24. Rxe5 a6 25. Rxc7 Rbc8 26. Ree7 Rxc7 27. Rxc7 h6 28. a4 Be2 29. h3 Rb8 30. Rc3 Bd1 31. Rd3 Bxb3 32. a5 Bd5 33. Bf4 Rb5 34. Bc7 Kf8 35. Bb6 g6 36. Rc3 Rb4 37. Rc7 Ke8 38. Rc8+ Kd7 39. Rc7+ Ke6 40. g3 Rb1+ 41. Kh2 Rh1# 1/2-1/2

[Event "NED-ch U14"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "6"]
[White "Weijers, Mark"]
[Black "Gommers, Olga"]
[Result "1-0"]
[ECO "B23"]
[PlyCount "65"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. f4 Nc6 3. Nf3 d6 4. Nc3 Nf6 5. d3 Bg4 6. Be2 Bxf3 7. Bxf3 Nd4 8. 0-0 g6 9. Ne2 Ne6 10. Be3 Qb6 11. b3 Rb8 12. Rb1 Qc7 13. a4 Bh6 14. Qd2 b6 15. Qc3 Bg7 16. Qd2 Bh6 17. Kh1 Rd8 18. g3 a5 19. c3 Rg8 20. b4 axb4 21. cxb4 Qa7 22. bxc5 bxc5 23. a5 Ra8 24. e5 Nd7 25. Bxa8 Qxa8+ 26. Kg1 dxe5 27. fxe5 Bxe3+ 28. Qxe3 Qxa5 29. Ra1 Qc7 30. Nf4 Nxf4 31. Ra8+ Nb8 32. Qxf4 Rf8 33. e6 1-0

[Event "NED-ch U14"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "2"]
[White "Weijers, Mark"]
[Black "Kappert, Lars"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "105"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. Bg5 d6 6. Nc3 0-0 7. 0-0 h6 8. Be3 Bxe3 9. fxe3 Ng4 10. Qd2 Qe7 11. Nd5 Qd7 12. Qe2 Na5 13. Bb3 Nxb3 14. axb3 c6 15. Nc3 d5 16. exd5 cxd5 17. h3 Nf6 18. Nxe5 Qd6 19. d4 Nd7 20. Nxd7 Bxd7 21. Qf3 Be6 22. Ne2 Rac8 23. c3 Qb6 24. Ra3 Rfe8 25. Nf4 Qb5 26. Rxa7 Qxb3 27. Rf2 Rcd8 28. Nxe6 fxe6 29. Qf7+ Kh8 30. Rxb7 Qxb7 31. Qxb7 Rb8 32. Qf7 Ra8 33. b4 Ra1+ 34. Rf1 Rxf1+ 35. Qxf1 Rc8 36. Qc1 Kg8 37. Kf2 Rf8+ 38. Ke2 Kf7 39. b5 Ke7 40. Qa3+ Ke8 41. Qxf8+ Kxf8 42. b6 Kf7 43. b7 Kg6 44. b8Q Kh7 45. h4 h5 46. Qf4 e5 47. dxe5 d4 48. exd4 g5 49. Qxg5 Kh8 50. e6 Kh7 51. e7 Kh8 52. e8N Kh7 53. Qg7# 1-0

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "1993.??.??"]
[Round "2"]
[White "Erwich, Marc"]
[Black "Weijers, Mark"]
[Result "1-0"]
[ECO "D07"]
[PlyCount "69"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "NED"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. c4 e6 4. Nc3 Nf6 5. e3 Bd6 6. c5 Be7 7. Bb5 Bd7 8. Bd2 a6 9. Bxc6 bxc6 10. Rb1 Ne4 11. Nxe4 dxe4 12. Ne5 Bh4 13. 0-0 f6 14. Qh5+ g6 15. Nxg6 hxg6 16. Qxh8+ Ke7 17. Qxh4 Qc8 18. Qh7+ Kd8 19. Qxg6 Be8 20. Qxf6+ Kd7 21. f4 exf3 22. Rxf3 Bh5 23. Qg7+ Kd8 24. Rf8+ Be8 25. h4 a5 26. h5 Qb8 27. Qf7 Kc8 28. Rxe8+ Kb7 29. Rxb8+ Rxb8 30. h6 Ka7 31. Qxc7+ Ka8 32. Qxb8+ Kxb8 33. h7 Ka7 34. h8Q Kb7 35. Qg7+ 1-0

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "1993.??.??"]
[Round "1"]
[White "Weijers, Mark"]
[Black "Fonds, M."]
[Result "1-0"]
[ECO "C50"]
[PlyCount "35"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "NED"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 h6 5. Nc3 d6 6. Be3 Nf6 7. Qd2 0-0 8. 0-0-0 Bg4 9. Bxh6 gxh6 10. Qxh6 Nh7 11. Qg6+ Kh8 12. Qxg4 Rg8 13. Qh3 Bxf2 14. Bxf7 Rf8 15. Bg6 Be3+ 16. Kb1 Qd7 17. Qxd7 Bh6 18. Qxh7# 1-0

