[Event "Apeldoorn Lichess blitz Inv"]
[Site "Lichess.org INT"]
[Date "2020.06.27"]
[Round "3.2"]
[White "Admiraal, Miguoel"]
[Black "Van Onzen, Jeroen"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2475"]
[BlackElo "2101"]
[PlyCount "9"]
[EventDate "2020.06.27"]
[EventType "k.o. (blitz)"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 c5 4. f3 g5 5. Bxb8 1-0

[Event "Apeldoorn Lichess blitz Inv"]
[Site "Lichess.org INT"]
[Date "2020.06.27"]
[Round "2.2"]
[White "Kuipers, Eelco"]
[Black "Van Onzen, Jeroen"]
[Result "0-1"]
[ECO "C28"]
[WhiteElo "2316"]
[BlackElo "2101"]
[PlyCount "32"]
[EventDate "2020.06.27"]
[EventType "k.o. (blitz)"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nc6 3. Nc3 Bc5 4. d3 Nf6 5. f4 exf4 6. Bxf4 d6 7. Nf3 Bg4 8. h3 Nh5 9. Bh2 Be6 10. Bb5 0-0 11. d4 Nxd4 12. Nxd4 Qh4+ 13. Kf1 f5 14. Qd2 fxe4+ 15. Kg1 e3 16. Qe2 Bxd4 0-1

[Event "Apeldoorn Lichess blitz Inv"]
[Site "Lichess.org INT"]
[Date "2020.06.27"]
[Round "3.1"]
[White "Van Onzen, Jeroen"]
[Black "Admiraal, Miguoel"]
[Result "0-1"]
[ECO "B19"]
[WhiteElo "2101"]
[BlackElo "2475"]
[PlyCount "116"]
[EventDate "2020.06.27"]
[EventType "k.o. (blitz)"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. h5 Bh7 8. Nf3 e6 9. Bd3 Bxd3 10. Qxd3 Nf6 11. 0-0 Be7 12. Ne5 0-0 13. c3 Nbd7 14. Bf4 c5 15. Nxd7 Qxd7 16. Rad1 cxd4 17. Qxd4 Qc6 18. Rfe1 Rfd8 19. Qe3 Qa4 20. Rxd8+ Rxd8 21. a3 Nd5 22. Qe4 Qxe4 23. Rxe4 Nxf4 24. Rxf4 Rd2 25. Rc4 Rxb2 26. Rc8+ Kh7 27. Rc7 Bxa3 28. Rxf7 Rb1+ 29. Kh2 a5 30. Ne4 Kg8 31. Rc7 a4 32. Rc8+ Kf7 33. Ra8 b5 34. c4 Be7 35. c5 Rc1 36. Ra7 Ke8 37. Ra8+ Kf7 38. Ra7 e5 39. Nd6+ Ke6 40. Nxb5 Rxc5 41. Nc7+ Kf7 42. Na8 e4 43. g4 Rc2 44. Kg2 a3 45. Nb6 a2 46. Nd5 Rc1 47. Rxe7+ Kf8 48. Ra7 a1Q 49. Rxa1 Rxa1 50. Nc3 Re1 51. Kg3 e3 52. Kf3 exf2 53. Kxf2 Ra1 54. Ne4 Kf7 55. Kf3 Ke6 56. g5 Kf5 57. gxh6 gxh6 58. Nd6+ Kg5 0-1

[Event "Apeldoorn Lichess blitz Inv"]
[Site "Lichess.org INT"]
[Date "2020.06.27"]
[Round "2.1"]
[White "Van Onzen, Jeroen"]
[Black "Kuipers, Eelco"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2101"]
[BlackElo "2316"]
[PlyCount "91"]
[EventDate "2020.06.27"]
[EventType "k.o. (blitz)"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. e4 d6 2. Nc3 Nf6 3. d4 e5 4. Be3 Be7 5. f3 c6 6. Qd2 Nbd7 7. 0-0-0 b5 8. g4 b4 9. Nce2 a5 10. h4 Qc7 11. Kb1 c5 12. dxc5 Nxc5 13. h5 Be6 14. g5 Nfd7 15. Nc1 Rb8 16. Bh3 a4 17. g6 fxg6 18. hxg6 Bxh3 19. Nxh3 h6 20. Ng5 Rf8 21. Nf7 b3 22. cxb3 axb3 23. a3 Na4 24. Nd3 Qc2+ 25. Qxc2 bxc2+ 26. Kxc2 Nab6 27. Nb4 Nc4 28. Bf2 Ndb6 29. Bxb6 Rxb6 30. b3 Nxa3+ 31. Kb2 Rxb4 32. Kxa3 Rb6 33. Rd5 Kd7 34. Rc1 Ke6 35. b4 Rfb8 36. Rc4 Ra6+ 37. Kb2 Rba8 38. b5 Ra2+ 39. Kb3 R8a3+ 40. Kb4 Rxf3 41. Rc6 Rb2+ 42. Ka5 Ra3+ 43. Kb6 Kf6 44. Nxd6 Bd8+ 45. Kb7 Kg5 46. Nc4 1-0

[Event "South Wales op 15th"]
[Site "Cardiff"]
[Date "2018.07.12"]
[Round "9"]
[White "Fathallah, Joe"]
[Black "Van Onzen, Jeroen"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "1990"]
[BlackElo "2102"]
[PlyCount "49"]
[EventDate "2018.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "WLS"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 axb5 6. e4 b4 7. Nb5 d6 8. Bf4 Nbd7 9. Nf3 Qa5 10. e5 Ba6 11. a4 bxa3+ 12. Bd2 Qb6 13. Rxa3 Nxd5 14. Ba5 Qc6 15. Bc4 N5b6 16. Bxb6 Nxb6 17. Nxd6+ exd6 18. Bxa6 Nd7 19. Qe2 d5 20. Bb5 Qb7 21. e6 fxe6 22. Qxe6+ Be7 23. Bxd7+ Kd8 24. Rxa8+ Qxa8 25. 0-0 1-0

[Event "South Wales op 15th"]
[Site "Cardiff"]
[Date "2018.07.11"]
[Round "7"]
[White "Jukes, Sam"]
[Black "Van Onzen, Jeroen"]
[Result "0-1"]
[ECO "C52"]
[WhiteElo "1853"]
[BlackElo "2102"]
[PlyCount "32"]
[EventDate "2018.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "WLS"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. 0-0 Nf6 8. Ba3 d6 9. e5 dxe5 10. cxd4 Be6 11. Bxe6 fxe6 12. Qb3 Qd5 13. Qxb7 Nxd4 14. Qxd5 Nxd5 15. Nxd4 exd4 16. Bc5 Bb6 0-1

[Event "South Wales op 15th"]
[Site "Cardiff"]
[Date "2018.07.11"]
[Round "8"]
[White "Van Onzen, Jeroen"]
[Black "Blackburn, Jonathan LB"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "2102"]
[BlackElo "2200"]
[PlyCount "64"]
[EventDate "2018.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "WLS"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. e5 Bd7 4. a3 c5 5. b4 d4 6. c3 Bc6 7. b5 Be4 8. d3 Bd5 9. c4 Bxf3 10. Qxf3 Qc7 11. Qe2 Nd7 12. f4 a6 13. bxa6 Rxa6 14. g3 Ne7 15. Bg2 Nf5 16. g4 Nh4 17. Be4 f6 18. g5 fxg5 19. fxg5 g6 20. Bf4 Bg7 21. Bg3 Nf5 22. Bxf5 exf5 23. e6 Ne5 24. 0-0 0-0 25. Nd2 Rxe6 26. Nf3 f4 27. Nxe5 fxg3 28. Rxf8+ Bxf8 29. Re1 gxh2+ 30. Qxh2 Bd6 31. Qh3 Rxe5 32. Rxe5 Bxe5 0-1

[Event "South Wales op 15th"]
[Site "Cardiff"]
[Date "2018.07.10"]
[Round "6"]
[White "Van Onzen, Jeroen"]
[Black "Britton, Richard"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2102"]
[BlackElo "2249"]
[PlyCount "132"]
[EventDate "2018.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "WLS"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. Nf3 Nc6 6. Bc4 Nb6 7. Bb3 d5 8. cxd4 Bg4 9. Be3 e6 10. 0-0 Be7 11. Nc3 0-0 12. Bc2 Nb4 13. Bb1 Nc4 14. b3 Na3 15. h3 Nxb1 16. Rxb1 Bf5 17. Rb2 Rc8 18. Na4 Nc2 19. Nc5 Bxc5 20. dxc5 Nxe3 21. fxe3 Rxc5 22. Nd4 Bg6 23. Rbf2 Qe7 24. Qg4 Rfc8 25. Ne2 Rc2 26. h4 Bf5 27. Qa4 Rxe2 28. Rxe2 Bd3 29. Ref2 Bxf1 30. Rxf1 a6 31. Qf4 Rc7 32. Kh2 h6 33. Rf3 Rc2 34. Rg3 Rxa2 35. Qxh6 Qf8 36. Qf4 Kh7 37. h5 Rc2 38. e4 d4 39. Rd3 f6 40. Rxd4 Rc5 41. g4 Qb8 42. Rd7 Qxe5 43. Qxe5 Rxe5 44. Rxb7 Rxe4 45. Kg3 Kh6 46. Ra7 e5 47. Kh4 Rb4 48. Rxa6 Kh7 49. Ra3 Rb6 50. Kg3 Kh6 51. Kh4 g6 52. hxg6 Kxg6 53. Ra1 Rxb3 54. Rf1 Re3 55. Rf2 Re1 56. Rf3 Kf7 57. Ra3 Rf1 58. Ra7+ Ke6 59. Ra6+ Kd5 60. Ra5+ Ke4 61. Ra4+ Kf3 62. Ra3+ Kf4 63. Kh5 e4 64. Ra6 Kg3 65. Re6 Rf4 66. Kg6 Kxg4 0-1

[Event "South Wales op 15th"]
[Site "Cardiff"]
[Date "2018.07.09"]
[Round "4"]
[White "Lauridsen, Jesper Morch"]
[Black "Van Onzen, Jeroen"]
[Result "1-0"]
[ECO "C68"]
[WhiteElo "2205"]
[BlackElo "2102"]
[PlyCount "101"]
[EventDate "2018.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "WLS"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Qf6 6. d4 exd4 7. Bg5 Qg6 8. Qxd4 Bg4 9. Nbd2 f6 10. Bf4 Rd8 11. Qa7 Bd6 12. Bxd6 cxd6 13. Qxb7 Ne7 14. Rfe1 Bc8 15. Qb3 Qf7 16. Nd4 0-0 17. Qxf7+ Kxf7 18. Rad1 c5 19. Ne2 Be6 20. Nf4 Ng6 21. Nxe6 Kxe6 22. g3 Rb8 23. Nc4 Ne5 24. Nxe5 fxe5 25. b3 Rf3 26. Re2 g5 27. Red2 Rb6 28. Kg2 Rf7 29. f3 h5 30. Rf1 Rb8 31. Kf2 a5 32. Ke3 a4 33. f4 c4 34. f5+ Kd7 35. Rfd1 axb3 36. Rxd6+ Kc7 37. axb3 cxb3 38. cxb3 Rxb3+ 39. R1d3 Rb2 40. Rd2 Rb1 41. Re6 Rd7 42. Rxd7+ Kxd7 43. Rxe5 Rb3+ 44. Kd4 Rb4+ 45. Kc3 Rb6 46. Rd5+ Ke7 47. e5 Rc6+ 48. Kd3 Rc1 49. Ra5 Rf1 50. Ra7+ Ke8 51. Ke4 1-0

[Event "South Wales op 15th"]
[Site "Cardiff"]
[Date "2018.07.09"]
[Round "5"]
[White "Van Onzen, Jeroen"]
[Black "Konnen, Timo"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2102"]
[BlackElo "1875"]
[PlyCount "95"]
[EventDate "2018.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "WLS"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. Nf3 Nf6 5. d3 a6 6. g3 Nc6 7. Bg2 Bg4 8. h3 Bh5 9. 0-0 0-0-0 10. Re1 e5 11. g4 Bg6 12. Qe2 Nd7 13. Ne4 Bxe4 14. Qxe4 Be7 15. d4 f6 16. dxe5 fxe5 17. Be3 Nf6 18. Qf5+ Qd7 19. Nh4 Nxg4 20. Bxc6 bxc6 21. Qxg4 Qxg4+ 22. hxg4 Bxh4 23. Kg2 Be7 24. Rh1 h6 25. Rh5 Bd6 26. Rah1 Rhf8 27. Rd1 Rf7 28. c4 Re8 29. Re1 Bf8 30. Rd1 g5 31. Rhh1 Rd8 32. Rxd8+ Kxd8 33. Rd1+ Ke7 34. Rd3 Ke6 35. Rd8 Bg7 36. Re8+ Kf6 37. Ra8 Kg6 38. Rxa6 Rf6 39. b4 Bf8 40. b5 cxb5 41. cxb5 Bd6 42. a4 h5 43. gxh5+ Kxh5 44. a5 Rf8 45. Rc6 Rd8 46. a6 Kg4 47. a7 Ra8 48. Rxd6 1-0

[Event "South Wales op 15th"]
[Site "Cardiff"]
[Date "2018.07.07"]
[Round "2"]
[White "Van Onzen, Jeroen"]
[Black "De Verdier, Michael Carl Adam"]
[Result "1/2-1/2"]
[ECO "C00"]
[WhiteElo "2102"]
[BlackElo "2298"]
[PlyCount "193"]
[EventDate "2018.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "WLS"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. e5 c5 4. b4 d4 5. bxc5 Bxc5 6. Ba3 Qa5 7. Bxc5 Qxc5 8. Bd3 Nc6 9. Qe2 Nge7 10. 0-0 Bd7 11. Re1 Rd8 12. a4 Nb4 13. Na3 Nxd3 14. cxd3 Bc6 15. Rec1 Qd5 16. Rc4 0-0 17. Rxd4 Qb3 18. Rxd8 Rxd8 19. Nc4 Qxd3 20. Qxd3 Rxd3 21. Rc1 h6 22. a5 g5 23. Ne1 Rd5 24. Nc2 Rc5 25. d3 Ng6 26. N2e3 Bd5 27. Rb1 Bxc4 28. Nxc4 Nxe5 29. Nxe5 Rxe5 30. g3 Rxa5 31. Rxb7 Kg7 32. Kg2 Ra2 33. Kf3 Kg6 34. h3 h5 35. Rb8 g4+ 36. hxg4 hxg4+ 37. Ke3 a5 38. Rg8+ Kf5 39. Rg7 f6 40. f3 gxf3 41. g4+ Ke5 42. Rd7 Ra3 43. Kxf3 Ra4 44. Ra7 Ra1 45. Ke3 Ra3 46. Ra8 Ra4 47. d4+ Kd6 48. Kd3 Ra1 49. Kc4 Ra4+ 50. Kd3 Ke7 51. Ra7+ Ke8 52. Kc3 Ra1 53. Kb2 Ra4 54. Kc3 Ra1 55. Kb2 Rg1 56. Rxa5 Rxg4 57. Kc3 Rg7 58. Kd3 Rb7 59. Rh5 Rb1 60. Rh7 Kf8 61. Ra7 Rb5 62. Ke4 Rd5 63. Rh7 Rg5 64. Ra7 Rg4+ 65. Ke3 Rg7 66. Ra6 Re7 67. Ke4 Kf7 68. Ra8 Rd7 69. Ra5 Kg6 70. Ra1 f5+ 71. Ke3 Kf6 72. Ra6 Rd5 73. Rb6 Ra5 74. Kf4 Ra4 75. Ke3 Ra3+ 76. Ke2 Ke7 77. Rc6 Rh3 78. Ra6 Kd7 79. Rb6 Rg3 80. Ra6 Rb3 81. d5 e5 82. Rf6 f4 83. Re6 Re3+ 84. Kf2 Kd8 85. Kf1 Kc7 86. Kf2 Kd7 87. Kf1 e4 88. Kf2 Kd8 89. Rf6 Rf3+ 90. Ke2 Kc7 91. Re6 Re3+ 92. Kf2 Kd7 93. Rf6 Rf3+ 94. Ke2 Re3+ 95. Kf2 Rd3 96. Rxf4 Rxd5 97. Rxe4 1/2-1/2

[Event "South Wales op 15th"]
[Site "Cardiff"]
[Date "2018.07.07"]
[Round "1"]
[White "Williams, David J"]
[Black "Van Onzen, Jeroen"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1528"]
[BlackElo "2102"]
[PlyCount "66"]
[EventDate "2018.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "WLS"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. 0-0 d6 6. h3 Be6 7. Nbd2 0-0 8. Ng5 Bd7 9. c3 Na5 10. Bxf7+ Rxf7 11. Nxf7 Kxf7 12. b4 Bb6 13. bxa5 Bxa5 14. f4 Bb6+ 15. Kh1 exf4 16. Rxf4 Kg8 17. Nc4 Qe8 18. Nxb6 axb6 19. Bd2 Qg6 20. Qe2 Nh5 21. Qf3 Nxf4 22. Bxf4 Qf7 23. d4 h6 24. Qg3 Kh7 25. e5 Rf8 26. Be3 dxe5 27. Qxe5 Bc6 28. Qg3 Re8 29. Re1 Re6 30. Bd2 Rg6 31. Qd3 Qf2 32. Re2 Qf1+ 33. Kh2 Bxg2 0-1

[Event "Hilversum op-A"]
[Site "Hilversum"]
[Date "2012.06.23"]
[Round "4"]
[White "Van Onzen, Jeroen"]
[Black "Miezis, Normunds"]
[Result "0-1"]
[ECO "B46"]
[WhiteElo "2125"]
[BlackElo "2577"]
[PlyCount "92"]
[EventDate "2012.06.22"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. a3 Nc6 5. d4 cxd4 6. Nxd4 Bc5 7. Be3 Qf6 8. Nf5 Bxe3 9. Nxe3 b5 10. Qd6 Nge7 11. Be2 h5 12. Rd1 Rb8 13. 0-0 Qe5 14. Qd2 g5 15. f3 Ng6 16. Qd6 f6 17. a4 Qxd6 18. Rxd6 b4 19. Nb1 Ke7 20. Rfd1 Nge5 21. Nc4 Nxc4 22. Bxc4 Ne5 23. Be2 h4 24. Kf2 a5 25. Bb5 Rb7 26. c4 Rc7 27. b3 Bb7 28. R6d4 Rg8 29. h3 Rd8 30. Nd2 Bc6 31. Nf1 Bxb5 32. axb5 Ra8 33. Ra1 d6 34. Ne3 Nd7 35. Rad1 Nc5 36. Rxd6 Nxb3 37. b6 Rb7 38. Rc6 a4 39. Rdd6 Nc5 40. Rd1 Nd7 41. Rdd6 Nf8 42. c5 a3 43. Rc7+ Rxc7 44. bxc7 a2 45. Nc2 b3 46. Ra6 Rc8 0-1

[Event "Maastricht Limburg op"]
[Site "Maastricht"]
[Date "2008.05.12"]
[Round "6"]
[White "Mol, Christiaan"]
[Black "Van Onzen, Jeroen"]
[Result "1/2-1/2"]
[ECO "E73"]
[BlackElo "2142"]
[PlyCount "45"]
[EventDate "2008.05.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 h6 7. Be3 e5 8. d5 a5 9. Qd2 Kh7 10. 0-0-0 b6 11. h3 Na6 12. g4 Nc5 13. Bd3 Nxd3+ 14. Qxd3 Nd7 15. Nge2 Nc5 16. Qc2 Qe8 17. Nb5 Na6 18. Nec3 Bd7 19. Rdg1 Rc8 20. h4 Qe7 21. h5 g5 22. f3 Kg8 23. Rd1 1/2-1/2

[Event "Maastricht Limburg op"]
[Site "Maastricht"]
[Date "2008.05.12"]
[Round "7"]
[White "Van Onzen, Jeroen"]
[Black "Scheeren, Peter MJ"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2142"]
[BlackElo "2435"]
[PlyCount "100"]
[EventDate "2008.05.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. c4 dxe4 4. Nc3 Nf6 5. Nge2 Bf5 6. Ng3 Bg6 7. h4 h6 8. h5 Bh7 9. Be3 e6 10. a3 Bd6 11. Rh3 Nbd7 12. Be2 Bf5 13. Nxf5 exf5 14. Qd2 Qe7 15. b4 a5 16. c5 axb4 17. Na2 f4 18. Bxf4 Bxf4 19. Qxf4 Nd5 20. Qg4 0-0 21. Rg3 f5 22. Qh3 Nf4 23. Bc4+ Kh8 24. Qh2 Qf6 25. Rd1 b5 26. Bf1 bxa3 27. Rb3 Nd5 28. Qh3 Qf7 29. Rxa3 e3 30. Rxa8 Rxa8 31. Nc1 Ra3 32. f3 Qf6 33. Be2 Nf4 34. Qg3 Qg5 35. Qxg5 hxg5 36. g4 fxg4 37. fxg4 Nxe2 38. Kxe2 Nf6 39. Kf3 Kg8 40. Ne2 Kf7 41. Rh1 b4 42. Rb1 Nd5 43. Ke4 Ra2 44. Nc1 Rd2 45. Ra1 e2 46. Nd3 Rd1 47. Ra7+ Kf6 48. h6 gxh6 49. Ra6 Rxd3 50. Rxc6+ Ke7 0-1

[Event "Maastricht Limburg op"]
[Site "Maastricht"]
[Date "2008.05.11"]
[Round "4"]
[White "Admiraal, Miguoel"]
[Black "Van Onzen, Jeroen"]
[Result "0-1"]
[ECO "C68"]
[BlackElo "2142"]
[PlyCount "90"]
[EventDate "2008.05.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Bd6 6. d4 exd4 7. Qxd4 f6 8. c4 c5 9. Qd5 Ne7 10. Qh5+ Ng6 11. e5 fxe5 12. Re1 Qf6 13. Be3 Qf5 14. Qxf5 Bxf5 15. Nc3 0-0 16. Rad1 Bg4 17. Ne4 Bxf3 18. gxf3 Nh4 19. Re2 Nxf3+ 20. Kg2 Nd4 21. Red2 Be7 22. f4 Nf5 23. Bf2 exf4 24. Kf3 Ne3 25. Bxe3 fxe3+ 26. Kxe3 Rae8 27. Rg2 h6 28. Re1 Bf6 29. Kd3 Bd4 30. Rge2 Rf3+ 31. Kc2 Ref8 32. a4 Rf1 33. Kd2 Rxe1 34. Kxe1 Rf3 35. Nd2 Re3 36. Rxe3 Bxe3 37. Nf1 Bf4 38. Ke2 Kf7 39. Kd3 Ke6 40. Ke4 g5 41. b3 b6 42. h3 c6 43. Ne3 Bxe3 44. Kxe3 Ke5 45. Kf3 h5 0-1

[Event "Maastricht Limburg op"]
[Site "Maastricht"]
[Date "2008.05.11"]
[Round "5"]
[White "Van Onzen, Jeroen"]
[Black "Aben, Paul"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2142"]
[PlyCount "60"]
[EventDate "2008.05.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. c4 dxe4 4. Nc3 Nf6 5. Nge2 e5 6. dxe5 Qxd1+ 7. Nxd1 Ng4 8. Bf4 Nd7 9. Nec3 Ngxe5 10. Nxe4 f5 11. Nec3 Be7 12. h4 Bf6 13. Ne3 Nc5 14. 0-0-0 Be6 15. Bg5 Bxg5 16. hxg5 f4 17. Nc2 Rd8 18. Nd4 Bxc4 19. Re1 0-0 20. Rxe5 Bxf1 21. Rxc5 Bxg2 22. Rd1 Rd6 23. Rf5 Rxf5 24. Nxf5 Rxd1+ 25. Kxd1 c5 26. Nh4 Bc6 27. Ne2 f3 28. Ng1 Kf7 29. Ngxf3 Bxf3+ 30. Nxf3 Kg6 1-0

[Event "Maastricht Limburg op"]
[Site "Maastricht"]
[Date "2008.05.10"]
[Round "2"]
[White "Schaeken, Yordi"]
[Black "Van Onzen, Jeroen"]
[Result "1/2-1/2"]
[ECO "E98"]
[WhiteElo "1916"]
[BlackElo "2142"]
[PlyCount "92"]
[EventDate "2008.05.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[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. Ne1 Ne8 10. Be3 f5 11. f3 f4 12. Bf2 g5 13. c5 h5 14. Nd3 Ng6 15. a4 Rf7 16. cxd6 cxd6 17. Nb5 g4 18. fxg4 hxg4 19. Bxg4 Nf6 20. Bf3 a6 21. Na3 Nh7 22. Nc4 Ng5 23. Nb6 Nxf3+ 24. Qxf3 Qg5 25. Nxc8 Rxc8 26. Rac1 Re8 27. a5 Bf8 28. Rc2 Rh7 29. Rfc1 Nh4 30. Bxh4 Qxh4 31. g3 fxg3 32. hxg3 Qh3 33. Qg2 Qh5 34. Rc7 Bh6 35. Rxh7 Be3+ 36. Nf2 Kxh7 37. g4 Qh6 38. Rc2 Rf8 39. Qg3 Qf4 40. Qxf4 Rxf4 41. Kg2 Bxf2 42. Rxf2 Rxg4+ 43. Kf3 Rf4+ 44. Ke3 Rxf2 45. Kxf2 Kh6 46. Kg3 Kg5 1/2-1/2

[Event "Maastricht Limburg op"]
[Site "Maastricht"]
[Date "2008.05.10"]
[Round "3"]
[White "Van Onzen, Jeroen"]
[Black "Lehaen, Frank"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "2142"]
[BlackElo "1931"]
[PlyCount "80"]
[EventDate "2008.05.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Nf3 a6 6. Bc4 b5 7. Bb3 Bb7 8. Qe2 Ne7 9. h4 Nbc6 10. Be3 Na5 11. Bc2 Nc4 12. 0-0 Rc8 13. Rac1 Nxb2 14. Nxb5 axb5 15. Qxb5 Nc4 16. Qxb7 Nxe3 17. fxe3 Rc7 18. Qb2 Nc6 19. Ng5 f6 20. Nxe6 dxe6 21. Ba4 Qa8 22. Bxc6+ Rxc6 23. Qb5 Kd7 24. e5 Be7 25. exf6 gxf6 26. Qb3 Rxc1 27. Rxc1 Bd6 28. Rd1 Rg8 29. Rd2 Qc6 30. Qd3 f5 31. Qd4 Rg4 32. Qb2 Ke7 33. a3 Qc7 34. Rc2 Qb8 35. Qc3 Bh2+ 36. Kh1 Be5 37. Qe1 Bg3 38. Qc3 Rxh4+ 39. Kg1 Be5 40. Qc5+ Qd6 0-1

[Event "Maastricht Limburg op"]
[Site "Maastricht"]
[Date "2008.05.09"]
[Round "1"]
[White "Van Onzen, Jeroen"]
[Black "Van Beek, Alexander"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "2142"]
[BlackElo "2343"]
[PlyCount "68"]
[EventDate "2008.05.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. 0-0 d6 6. h3 Na5 7. Bb3 Nxb3 8. axb3 c5 9. Be3 0-0 10. Qd2 Nh5 11. Nc3 f5 12. exf5 Bxf5 13. g4 Bc8 14. Nh2 d5 15. Kh1 d4 16. gxh5 Bxh3 17. Rg1 dxc3 18. bxc3 Qd5+ 19. f3 Rxf3 20. Nxf3 Qxf3+ 21. Kh2 Qxh5 22. Rg3 Bd7+ 23. Kg1 Bh4 24. Qh2 g6 25. Rg2 Bc6 26. Rf1 b6 27. d4 cxd4 28. cxd4 Re8 29. c4 Bxg2 30. Qxg2 exd4 31. Bh6 d3 32. Be3 Qe5 33. Rf3 Bf6 34. Qf2 Bg7 0-1

[Event "Guernsey op 33rd"]
[Site "Guernsey"]
[Date "2007.10.27"]
[Round "7"]
[White "Van Onzen, Jeroen"]
[Black "Bolt, Graham"]
[Result "0-1"]
[ECO "B22"]
[BlackElo "2097"]
[PlyCount "62"]
[EventDate "2007.10.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GCI"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. Nf3 e6 6. Nxd4 Nc6 7. Nxc6 bxc6 8. Nd2 Qc7 9. Nf3 Be7 10. Bd3 c5 11. 0-0 a5 12. Re1 Bb7 13. Rb1 c4 14. Be4 a4 15. Qc2 h6 16. Bd2 0-0 17. Nd4 Rfb8 18. Qc1 Bf8 19. Qd1 Qd8 20. Qf3 g6 21. Qh3 h5 22. Qg3 Ne7 23. Bc2 Bd5 24. Bg5 Qe8 25. a3 Bg7 26. Bf6 Qf8 27. Ne2 Nf5 28. Bxf5 exf5 29. Rbd1 Be6 30. Rd2 Ra6 31. Qg5 Bh6 0-1

[Event "Guernsey op 33rd"]
[Site "Guernsey"]
[Date "2007.10.26"]
[Round "6"]
[White "Broek, Thomas"]
[Black "Van Onzen, Jeroen"]
[Result "1/2-1/2"]
[ECO "C52"]
[WhiteElo "2202"]
[PlyCount "77"]
[EventDate "2007.10.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GCI"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. 0-0 Nf6 8. e5 d5 9. Bb5 Ne4 10. Qa4 Bxc3 11. Bxc6+ bxc6 12. Nxc3 Nxc3 13. Qxc6+ Bd7 14. Qc5 Qe7 15. Qxe7+ Kxe7 16. Nxd4 Nb5 17. Nb3 Rab8 18. Be3 d4 19. Nxd4 Nxd4 20. Bxd4 Rb7 21. Rfc1 Rd8 22. h3 g6 23. Rc3 Be6 24. Be3 Rd5 25. Rac1 Kd7 26. a3 Ra5 27. Rd1+ Bd5 28. Bc5 c6 29. Bb4 Rab5 30. Rf3 Ke8 31. Rf4 a5 32. Bd6 Rb1 33. Rxb1 Rxb1+ 34. Kh2 Kd7 35. Ra4 Rb5 36. Rd4 Ke6 37. Bc7 Kd7 38. Bd6 Ke6 39. Bc7 1/2-1/2

[Event "Guernsey op 33rd"]
[Site "Guernsey"]
[Date "2007.10.25"]
[Round "5"]
[White "Van Onzen, Jeroen"]
[Black "Ravikumar, Vaidyanathan"]
[Result "1/2-1/2"]
[ECO "B21"]
[BlackElo "2350"]
[PlyCount "129"]
[EventDate "2007.10.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GCI"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 d3 4. c4 d6 5. Nc3 Nf6 6. Bxd3 Nc6 7. h3 g6 8. Nf3 Bg7 9. Be3 0-0 10. 0-0 Nd7 11. Rc1 Qa5 12. a3 Nde5 13. Nxe5 dxe5 14. Nb5 Qd8 15. b4 Nd4 16. Bb1 Be6 17. f4 Bxc4 18. Rxc4 Nxb5 19. Qxd8 Rfxd8 20. a4 exf4 21. Bxf4 Nc3 22. Be3 Rd7 23. a5 a6 24. Bc2 e6 25. Rf3 Ne2+ 26. Kf1 Nd4 27. Bxd4 Rxd4 28. Rc7 Rxb4 29. Rcxf7 Rc8 30. Bb3 Rxb3 31. Rxg7+ Kxg7 32. Rxb3 Rc7 33. e5 Kh6 34. Rb6 Re7 35. Kf2 Kg5 36. Ke3 Kf5 37. Kd4 h5 38. g3 g5 39. Rd6 h4 40. gxh4 gxh4 41. Rd8 Kf4 42. Rg8 Rd7+ 43. Kc3 Kxe5 44. Rh8 Rd5 45. Rxh4 Kd6 46. Rh7 Rxa5 47. Rxb7 Ra3+ 48. Kb2 Rxh3 49. Rb6+ Kd5 50. Rxa6 e5 51. Kc2 Ke4 52. Kd2 Rh2+ 53. Ke1 Kf4 54. Ra3 e4 55. Rb3 Ra2 56. Rc3 Ke5 57. Rb3 Kd5 58. Rc3 Kd4 59. Rh3 Rc2 60. Ra3 Rc4 61. Ke2 Rb4 62. Rh3 Rb2+ 63. Ke1 Ra2 64. Rg3 e3 65. Rg8 1/2-1/2

[Event "Guernsey op 33rd"]
[Site "Guernsey"]
[Date "2007.10.24"]
[Round "4"]
[White "Van Onzen, Jeroen"]
[Black "Lewyk, Ihor"]
[Result "1-0"]
[ECO "B21"]
[BlackElo "2105"]
[PlyCount "47"]
[EventDate "2007.10.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GCI"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 d6 5. Nf3 Nc6 6. Bc4 e6 7. 0-0 Be7 8. Qe2 Nf6 9. Rd1 Nd7 10. Bf4 0-0 11. Bxd6 Bxd6 12. Rxd6 Qe7 13. Rad1 Nb6 14. Bb5 Nb8 15. Qd2 Qc7 16. e5 a6 17. Bd3 h6 18. Ne4 Nd5 19. Nf6+ Kh8 20. Bb1 Nc6 21. Nxd5 exd5 22. Rxh6+ Kg8 23. Qg5 Re8 24. Rh7 1-0

[Event "Guernsey op 33rd"]
[Site "Guernsey"]
[Date "2007.10.23"]
[Round "3"]
[White "Kamps, JW."]
[Black "Van Onzen, Jeroen"]
[Result "0-1"]
[ECO "C74"]
[WhiteElo "2077"]
[PlyCount "100"]
[EventDate "2007.10.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GCI"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 f5 6. exf5 Bxf5 7. 0-0 Bd3 8. Re1 Be7 9. Bc2 Bxc2 10. Qxc2 Qd7 11. d4 exd4 12. cxd4 Nf6 13. Nc3 0-0 14. Bg5 h6 15. Bh4 Kh8 16. Rad1 Nh5 17. Nd5 Rxf3 18. Nxe7 Rf7 19. Ng6+ Kg8 20. d5 Ne5 21. Nxe5 dxe5 22. Rxe5 Qg4 23. Qe2 Qxh4 24. Rxh5 Qf6 25. Re5 Rd8 26. f3 Qg6 27. Re6 Qg5 28. Qd2 Qxd2 29. Rxd2 Rdd7 30. Rc2 Rf5 31. Re8+ Kh7 32. Rb8 b5 33. d6 Rxd6 34. g4 Rxf3 35. Kg2 Rfd3 36. Rf8 Rd2+ 37. Rf2 Rxc2 38. Rxc2 c5 39. Kf3 c4 40. a4 Kg6 41. axb5 axb5 42. Ke4 Kg5 43. Rf2 g6 44. h4+ Kxg4 45. h5 Kxh5 46. Rh2+ Kg5 47. Ke5 Rc6 48. Rg2+ Kh5 49. Rh2+ Kg4 50. Rxh6 g5 0-1

[Event "Guernsey op 33rd"]
[Site "Guernsey"]
[Date "2007.10.22"]
[Round "2"]
[White "Van Onzen, Jeroen"]
[Black "Pickersgill, Adrian"]
[Result "1-0"]
[ECO "B01"]
[BlackElo "2088"]
[PlyCount "97"]
[EventDate "2007.10.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GCI"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. b4 Qxb4 5. a4 Nf6 6. Ba3 Qa5 7. Nf3 c6 8. Bc4 Bg4 9. Rb1 Qc7 10. h3 Bh5 11. Qe2 Nbd7 12. g4 Bg6 13. 0-0 e6 14. Bxe6 Bxa3 15. Bxf7+ Kf8 16. Ba2 Re8 17. Qc4 Nb6 18. Nb5 Qe7 19. Qb3 cxb5 20. Rbe1 bxa4 21. Qb5 Qc5 22. Rxe8+ Bxe8 23. Qd3 Qd6 24. Qe2 h6 25. Re1 g5 26. c3 Rh7 27. Ne5 Re7 28. d4 Nbd5 29. Qd2 Nf4 30. Re3 Nxh3+ 31. Rxh3 Rxe5 32. Rxh6 Kg7 33. Rh3 Re4 34. Qxg5+ Kf8 35. f3 Rxd4 36. Rh8+ Ke7 37. Qg7+ Kd8 38. cxd4 Qxd4+ 39. Kg2 Qd2+ 40. Kh3 Qf4 41. Qxb7 Bd6 42. Qa8+ Bb8 43. Kh4 Qh2+ 44. Kg5 Qxh8 45. Qxb8+ Ke7 46. Qe5+ Kf8 47. Qd6+ Kg7 48. Qxf6+ Kh7 49. Qh6# 1-0

[Event "Guernsey op 33rd"]
[Site "Guernsey"]
[Date "2007.10.21"]
[Round "1"]
[White "Epishin, Vladimir"]
[Black "Van Onzen, Jeroen"]
[Result "1/2-1/2"]
[ECO "E97"]
[WhiteElo "2578"]
[PlyCount "81"]
[EventDate "2007.10.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GCI"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d6 4. e4 Bg7 5. Nf3 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. b4 Ne8 10. c5 f5 11. Qc2 h6 12. Bb2 f4 13. Rfc1 g5 14. h3 Ng6 15. Nh2 Nf6 16. Qd1 Nh4 17. Rc2 Bd7 18. a4 Qe8 19. Nb5 Bxb5 20. Bxb5 Qf7 21. cxd6 cxd6 22. Rac1 Qg6 23. Bd3 h5 24. f3 g4 25. fxg4 f3 26. Nxf3 Nxf3+ 27. Qxf3 Bh6 28. Qf5 Be3+ 29. Kh1 Qxf5 30. gxf5 Bxc1 31. Rxc1 Rac8 32. Rd1 Rf7 33. b5 Kf8 34. a5 Ke7 35. Bc1 Nd7 36. Be2 Rh7 37. Be3 Rc2 38. Bd3 Ra2 39. a6 b6 40. Bg5+ Ke8 41. h4 1/2-1/2

[Event "Arnhem OSKA op"]
[Site "Arnhem"]
[Date "2005.03.09"]
[Round "3"]
[White "Van Onzen, Jeroen"]
[Black "Rijnaarts, Sjef"]
[Result "0-1"]
[ECO "B88"]
[WhiteElo "2009"]
[BlackElo "2194"]
[PlyCount "38"]
[EventDate "2005.09.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 e6 4. Bc4 d6 5. 0-0 Be7 6. d4 cxd4 7. Nxd4 Nf6 8. Be3 0-0 9. a4 Re8 10. f4 d5 11. exd5 exd5 12. Bb5 Ng4 13. Nxc6 bxc6 14. Bxc6 Nxe3 15. Qd3 Bc5 16. Bxa8 Qh4 17. Kh1 Ng4 18. Qg3 Qxg3 19. hxg3 Re6 0-1

[Event "Arnhem OSKA op"]
[Site "Arnhem"]
[Date "2005.02.09"]
[Round "1"]
[White "Van Onzen, Jeroen"]
[Black "Struk, Jerzy"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "2009"]
[BlackElo "2232"]
[PlyCount "46"]
[EventDate "2005.09.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nxc6 bxc6 6. Bc4 Nf6 7. 0-0 Be7 8. Nc3 0-0 9. f4 Bc5+ 10. Kh1 d6 11. fxe5 Ng4 12. Qe1 Nxe5 13. Be2 Rb8 14. Qg3 Kh8 15. Bf4 Rxb2 16. Bxe5 dxe5 17. Na4 Rxc2 18. Bd3 Bf2 19. Qf3 Bg4 20. Qxg4 Qxd3 21. Rad1 Qc4 22. Qd7 Kg8 23. Qe7 Bd4 0-1

[Event "Arnhem OSKA op"]
[Site "Arnhem"]
[Date "2004.05.09"]
[Round "6"]
[White "Van Onzen, Jeroen"]
[Black "Reulink, Fred"]
[Result "0-1"]
[ECO "B01"]
[PlyCount "108"]
[EventDate "2004.09.03"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 102 Extra"]
[Source "ChessBase"]
[SourceDate "2004.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.03"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Nf3 Nf6 5. Be2 c6 6. 0-0 Bf5 7. b4 Qxb4 8. Rb1 Qa5 9. Rxb7 e6 10. Nd4 Bd6 11. Rxb8+ Bxb8 12. Nxc6 Qc7 13. Nxb8 Rxb8 14. Ba3 Be4 15. Nb5 Qxc2 16. Nd6+ Kd7 17. Qxc2 Bxc2 18. Bb5+ Rxb5 19. Nxb5 Bd3 20. Nd6 Bxf1 21. Nxf7 Rc8 22. Kxf1 Rc2 23. Ne5+ Ke8 24. Bb4 Rxa2 25. Ke2 a5 26. Bc3 Ne4 27. Kd3 Nxc3 28. Kxc3 Ra1 29. Nd3 Ke7 30. g3 Kf6 31. Nc5 Rc1+ 32. Kd4 Ra1 33. Ne4+ Kf5 34. f3 Ra4+ 35. Ke3 e5 36. g4+ Kg6 37. h4 h5 38. Nc5 Ra3+ 39. Ke4 hxg4 40. fxg4 Rg3 41. Kxe5 Rxg4 42. h5+ Kf7 43. Ne4 a4 44. Nd6+ Ke7 45. Nf5+ Kd7 46. Ne3 a3 47. Nxg4 a2 48. h6 a1Q+ 49. Kf5 gxh6 50. Nxh6 Qa5+ 51. Kg4 Qxd2 52. Nf5 Ke6 53. Ng3 Qf2 54. Ne4 Qf5+ 0-1

[Event "Zwolle Windesheim op"]
[Site "Zwolle"]
[Date "2003.03.07"]
[Round "1"]
[White "Milov, Vadim"]
[Black "Van Onzen, Jeroen"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "2592"]
[PlyCount "53"]
[EventDate "2003.03.07"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 093 Extra"]
[Source "ChessBase"]
[SourceDate "2003.05.09"]
[SourceVersion "1"]
[SourceVersionDate "2003.05.09"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. cxd5 Qxd5 4. e3 e5 5. Nc3 Bb4 6. Bd2 Bxc3 7. bxc3 Nf6 8. Qb3 Qxb3 9. axb3 exd4 10. cxd4 Be6 11. Bc4 0-0 12. Ne2 Rfe8 13. f3 a6 14. Kf2 Rad8 15. Rhc1 Bf5 16. Bxa6 Nxd4 17. Nxd4 bxa6 18. Rxc7 Bd3 19. Ba5 Rb8 20. Rd1 Bb5 21. Nf5 Re6 22. Bc3 Rbe8 23. g4 h6 24. h4 Rc6 25. Rxc6 Bxc6 26. Bxf6 gxf6 27. Rd6 1-0

[Event "Haarlem AKN op 10th"]
[Site "Haarlem"]
[Date "2001.07.08"]
[Round "5"]
[White "Kodentsov, Grigori"]
[Black "Van Onzen, Jeroen"]
[Result "1/2-1/2"]
[ECO "B56"]
[PlyCount "91"]
[EventDate "2001.07.06"]
[EventType "swiss"]
[EventRounds "6"]
[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 e5 6. Bb5+ Bd7 7. Bxd7+ Nbxd7 8. Nf5 Nc5 9. Bg5 g6 10. Ne3 h6 11. Bxf6 Qxf6 12. Ncd5 Qd8 13. b4 Ne6 14. c3 Be7 15. 0-0 0-0 16. Qd3 a6 17. Rad1 Bg5 18. g3 Bxe3 19. Qxe3 Qg5 20. Qxg5 Nxg5 21. f3 Kg7 22. Nb6 Rad8 23. h4 Ne6 24. Rd3 Nc7 25. Rfd1 Ne8 26. c4 f5 27. c5 fxe4 28. fxe4 h5 29. Nc4 Rf6 30. Rd5 Rf3 31. Kg2 Rc3 32. Nxe5 Nf6 33. Rxd6 Rc2+ 34. Kg1 Re8 35. Nf3 Rxe4 36. R6d4 Re3 37. R4d3 Re4 38. a3 Ree2 39. R3d2 Rcxd2 40. Rxd2 Re3 41. Kg2 Rxa3 42. Rd6 Ra2+ 43. Kg1 Ra3 44. Kg2 Ra2+ 45. Kg1 Ra3 46. Kg2 1/2-1/2

[Event "Haarlem AKN op 10th"]
[Site "Haarlem"]
[Date "2001.07.08"]
[Round "6"]
[White "Van Onzen, Jeroen"]
[Black "Burggraaf, Jan Theodoor"]
[Result "0-1"]
[ECO "B44"]
[PlyCount "90"]
[EventDate "2001.07.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c4 Nc6 4. Nc3 Nf6 5. d4 cxd4 6. Nxd4 Bb4 7. f3 0-0 8. Bg5 Qa5 9. Nxc6 Bxc3+ 10. bxc3 Qxg5 11. Ne7+ Kh8 12. Nxc8 Qe3+ 13. Be2 Qxc3+ 14. Kf2 Raxc8 15. Qd3 Qxd3 16. Bxd3 d6 17. Rhd1 Rfd8 18. Rab1 b6 19. Be2 Kg8 20. Rb3 Kf8 21. Ra3 a5 22. Rb3 Rb8 23. Rbd3 Ke7 24. R3d2 Ne8 25. Rb1 Kd7 26. Bd1 Kc7 27. Ba4 Nf6 28. Rbd1 g5 29. g4 h6 30. h4 Nh7 31. h5 e5 32. Ke3 Nf8 33. Rd5 Ne6 34. Bb5 f6 35. a4 Nc5 36. Ke2 Nb3 37. Ke3 Rbc8 38. Ba6 Ra8 39. Bb5 Ra7 40. Kf2 Nd4 41. R5xd4 exd4 42. Ke2 Kb8 43. Rd3 Rf8 44. Rxd4 Rc8 45. Kf2 Rac7 0-1

[Event "Haarlem AKN op 10th"]
[Site "Haarlem"]
[Date "2001.07.07"]
[Round "3"]
[White "Deen, Ron"]
[Black "Van Onzen, Jeroen"]
[Result "1/2-1/2"]
[ECO "A53"]
[PlyCount "104"]
[EventDate "2001.07.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 d6 4. Bg2 c6 5. d4 Nbd7 6. e4 Be7 7. Nge2 0-0 8. 0-0 exd4 9. Qxd4 Ne5 10. h3 c5 11. Qd1 Nxc4 12. Nf4 Be6 13. Nxe6 fxe6 14. Qb3 Ne5 15. Qxe6+ Kh8 16. Be3 Qd7 17. Qxd7 Nfxd7 18. Rad1 Nb6 19. b3 a6 20. Nd5 Nxd5 21. Rxd5 Nc6 22. Rfd1 Rad8 23. f4 h6 24. h4 Nb4 25. R5d2 Nc6 26. h5 Rg8 27. Bh3 Rge8 28. Bf5 Kg8 29. Kg2 Rf8 30. g4 Kh8 31. g5 hxg5 32. fxg5 Nd4 33. Bg4 Rde8 34. Rxd4 cxd4 35. Rxd4 Bd8 36. Rd3 Rxe4 37. Bf3 Re5 38. g6 Bf6 39. Bxb7 Rfe8 40. Bd2 Rxh5 41. Bf3 Rh4 42. Rxd6 Rd4 43. Rxd4 Bxd4 44. Bg4 Rf8 45. Be1 Rf6 46. Bc8 Rxg6+ 47. Kf3 Ba7 48. Ke4 Rg2 49. Bxa6 Rxa2 50. Bc4 Ra1 51. Bc3 Rc1 52. Bd2 Rh1 1/2-1/2

[Event "Haarlem AKN op 10th"]
[Site "Haarlem"]
[Date "2001.07.07"]
[Round "4"]
[White "Van Onzen, Jeroen"]
[Black "Van Benthem, Arjen"]
[Result "0-1"]
[ECO "B50"]
[BlackElo "2284"]
[PlyCount "90"]
[EventDate "2001.07.06"]
[EventType "swiss"]
[EventRounds "6"]
[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. c3 Nf6 4. Be2 g6 5. 0-0 Bg7 6. d3 0-0 7. Nbd2 Nc6 8. Nc4 d5 9. exd5 Nxd5 10. Be3 b6 11. d4 cxd4 12. Bxd4 Nxd4 13. Nxd4 Bb7 14. Bf3 Qc7 15. Na3 Rad8 16. Qa4 a6 17. Qc4 Qd6 18. Bxd5 Qxd5 19. Qxd5 Rxd5 20. Rfe1 e5 21. Nf3 f6 22. Nc4 b5 23. Ne3 Rd3 24. Red1 Rfd8 25. Rxd3 Rxd3 26. a4 Bh6 27. axb5 axb5 28. Ra7 Bd5 29. Ra1 Bxe3 30. fxe3 Rxe3 31. Kf2 Re4 32. Ra5 Bc4 33. b3 Bd3 34. h3 Re2+ 35. Kg1 Rb2 36. b4 Bc4 37. Ra6 Kf7 38. Ra7+ Ke6 39. Ra6+ Kf5 40. g4+ Kf4 41. Rxf6+ Kg3 42. Ne1 Kxh3 43. g5 Kg4 44. Rf8 e4 45. Re8 Re2 0-1

[Event "Haarlem AKN op 10th"]
[Site "Haarlem"]
[Date "2001.07.06"]
[Round "2"]
[White "Van Onzen, Jeroen"]
[Black "Los, Fedor"]
[Result "1-0"]
[ECO "B01"]
[PlyCount "107"]
[EventDate "2001.07.06"]
[EventType "swiss"]
[EventRounds "6"]
[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. c4 e6 4. dxe6 Bxe6 5. Nc3 Bc5 6. Nf3 Nc6 7. Be2 Nd4 8. 0-0 Nxf3+ 9. Bxf3 Bxc4 10. Qa4+ b5 11. Re1+ Kf8 12. Nxb5 Bd5 13. Bxd5 Nxd5 14. Qc4 Bb6 15. d4 Ne7 16. Bg5 f6 17. Bf4 Qd7 18. Nxc7 Bxc7 19. Qxc7 Qxc7 20. Bxc7 Kf7 21. Bd6 Nd5 22. Kf1 Rac8 23. Bc5 a6 24. Rad1 Rhd8 25. Rd3 Rd7 26. Ra3 Ra8 27. b4 Nc7 28. Rae3 Nd5 29. Re6 Rb8 30. Rd6 Rxd6 31. Bxd6 Rb7 32. Bc5 Nc3 33. a3 Nb5 34. Re3 Rd7 35. g3 g6 36. h3 h5 37. h4 Nc7 38. a4 Ne6 39. b5 axb5 40. axb5 Nxd4 41. Rd3 Rd5 42. Bxd4 Rxb5 43. Re3 Rd5 44. Bc3 f5 45. Kg2 Rd6 46. Kf3 Ra6 47. Rd3 Rc6 48. Bd4 Ra6 49. Be3 Rc6 50. Kf4 Ra6 51. Kg5 Rc6 52. Rd7+ Kg8 53. Kh6 Ra6 54. Rg7+ 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "6"]
[White "Broersen, Sjors"]
[Black "Van Onzen, Jeroen"]
[Result "1/2-1/2"]
[ECO "B01"]
[PlyCount "78"]
[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 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 c6 5. Bc4 Nf6 6. Bd2 Qc7 7. h3 g6 8. Nf3 Bg7 9. 0-0 0-0 10. Re1 e6 11. Qc1 Nd5 12. Bh6 Nd7 13. Bxg7 Kxg7 14. Bxd5 cxd5 15. Nh2 Nf6 16. Re3 Bd7 17. Rf3 h6 18. Qe3 Rh8 19. Re1 Rh7 20. Qd2 b6 21. Re5 Ng8 22. Ng4 f6 23. Re1 Rf8 24. Qd3 h5 25. Nh2 Ne7 26. Rfe3 Nf5 27. R3e2 Rf7 28. Nf1 Qc4 29. Qxc4 dxc4 30. Rd2 Kh6 31. Ne3 b5 32. Nxf5+ gxf5 33. d5 e5 34. d6 Rhg7 35. Kh2 Rf8 36. Nd5 Bc6 37. Ne3 Kg6 38. Nd5 Kf7 39. f3 Bxd5 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "2"]
[White "Hiemstra, Sebastian"]
[Black "Van Onzen, Jeroen"]
[Result "0-1"]
[ECO "B58"]
[PlyCount "60"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nf3 Nc6 7. Be2 Be7 8. 0-0 0-0 9. b3 Bg4 10. h3 Bh5 11. Bg5 Bg6 12. Bxf6 Bxf6 13. Bc4 Rc8 14. Qe2 Re8 15. Nd5 Bh5 16. c3 Ne7 17. Nxf6+ gxf6 18. g4 Bg6 19. Ne1 a6 20. a4 d5 21. Rd1 Bxe4 22. Bd3 Bxd3 23. Qxd3 Ng6 24. Ng2 Re6 25. c4 d4 26. f4 Nxf4 27. Nxf4 exf4 28. Rxf4 Qb6 29. Rf3 Rce8 30. Qxd4 Rd8 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "4"]
[White "Snuverink, Michiel"]
[Black "Van Onzen, Jeroen"]
[Result "0-1"]
[ECO "B98"]
[PlyCount "68"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Nc6 9. 0-0-0 Qc7 10. g4 Bd7 11. Nb3 Rc8 12. Kb1 b5 13. Bxf6 gxf6 14. Bd3 Nb4 15. f5 Nxd3 16. cxd3 Qb6 17. fxe6 fxe6 18. g5 fxg5 19. Rhf1 Kd8 20. Qf7 Rc7 21. d4 b4 22. Ne2 Qc6 23. Ng3 Qc2+ 24. Ka1 Qxh2 25. Qg7 Re8 26. Rg1 Rc2 27. d5 e5 28. Rb1 Rxb2 29. Rxb2 Qxg1+ 30. Rb1 Qxg3 31. Rc1 Qe3 32. Kb2 Rf8 33. Rc2 Rf2 34. Qg8+ Be8 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "8"]
[White "Van Beek, Guido"]
[Black "Van Onzen, Jeroen"]
[Result "1-0"]
[ECO "B01"]
[PlyCount "57"]
[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 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 c6 5. Bd3 Nf6 6. h3 Be6 7. Bd2 Qd8 8. Nf3 Bd5 9. Nxd5 Nxd5 10. 0-0 e6 11. c4 Nf6 12. Re1 Be7 13. Qc2 0-0 14. Rad1 Na6 15. a3 Nc7 16. Bc3 Kh8 17. b4 b5 18. Ne5 Qe8 19. Qe2 bxc4 20. Nxc4 Nb5 21. Bb2 Rd8 22. Bb1 Nd5 23. Qc2 g6 24. Ne5 Rc8 25. Rc1 Bg5 26. Rcd1 Bf6 27. Rd3 Bg7 28. h4 Nd6 29. h5 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "9"]
[White "Van Onzen, Jeroen"]
[Black "Heltzel, Joost"]
[Result "0-1"]
[ECO "B10"]
[PlyCount "44"]
[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 c6 2. c4 d5 3. cxd5 cxd5 4. exd5 Nf6 5. Nc3 g6 6. Nf3 Bg7 7. Bc4 0-0 8. 0-0 Nbd7 9. Re1 Nb6 10. Bb3 Nbxd5 11. h3 e6 12. d4 b6 13. Bg5 Bb7 14. Rc1 Qd6 15. Ne5 a6 16. Bh4 Rac8 17. Bg3 Qe7 18. Bh4 Qb4 19. f3 Nxc3 20. bxc3 Rxc3 21. Qd2 Rxb3 22. Qc2 Rb2 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "5"]
[White "Van Onzen, Jeroen"]
[Black "Jongsma, Daan"]
[Result "1/2-1/2"]
[ECO "B30"]
[BlackElo "2232"]
[PlyCount "54"]
[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 c5 2. Nf3 Nc6 3. Be2 g6 4. c3 d5 5. exd5 Qxd5 6. d3 Bg7 7. Be3 Nf6 8. 0-0 0-0 9. Na3 Rd8 10. Qb3 Qxb3 11. axb3 b6 12. d4 Ng4 13. dxc5 Nxe3 14. fxe3 bxc5 15. Ng5 Ne5 16. Nc4 Bh6 17. Nxe5 Bxg5 18. Bf3 Be6 19. Bxa8 Bxe3+ 20. Kh1 Rxa8 21. Nc4 Bg5 22. Ra5 Rb8 23. Rxc5 Bf5 24. Re1 Rxb3 25. Rc7 Be6 26. Re2 Bf4 27. Rc5 Kg7 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "7"]
[White "Van Onzen, Jeroen"]
[Black "Konijn, Rob"]
[Result "1-0"]
[ECO "C54"]
[PlyCount "43"]
[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 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. 0-0 Bxc3 9. d5 Bf6 10. Re1 Ne7 11. Rxe4 d6 12. Bg5 Bxg5 13. Nxg5 h6 14. Qe2 hxg5 15. Re1 0-0 16. Rxe7 Bd7 17. Qh5 g6 18. Qxg5 Re8 19. Qf6 Rxe7 20. Rxe7 Be8 21. Bd3 Kf8 22. Bxg6 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "3"]
[White "Van Onzen, Jeroen"]
[Black "Tiele, Edwin"]
[Result "1-0"]
[ECO "C27"]
[PlyCount "49"]
[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 Nf6 2. Nc3 e5 3. Bc4 Nxe4 4. Nxe4 d5 5. Nf3 dxc4 6. Qe2 Nc6 7. Qxc4 Be6 8. Qb5 f6 9. 0-0 Bd5 10. Ng3 Bxf3 11. gxf3 Bd6 12. Qxb7 Nd4 13. Qe4 0-0 14. c3 Ne6 15. d4 g6 16. Kh1 Kh8 17. Bh6 Re8 18. Rg1 Nf4 19. Rae1 Qd7 20. dxe5 g5 21. Nf5 Bxe5 22. Qc2 Nd3 23. Bg7+ Kg8 24. Qb3+ Qf7 25. Nh6+ 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "1"]
[White "Van Onzen, Jeroen"]
[Black "Van Dongen, Hans"]
[Result "0-1"]
[ECO "C54"]
[PlyCount "23"]
[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 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Bxc3+ 8. bxc3 Nxe4 9. 0-0 Ne7 10. d5 Nxc3 11. Qd4 b5 12. Bb3 0-1

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.12"]
[Round "9"]
[White "Van Woerden, Michiel"]
[Black "Van Onzen, Jeroen"]
[Result "1/2-1/2"]
[ECO "B90"]
[PlyCount "66"]
[EventDate "2000.08.07"]
[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. Nf3 d6 3. d4 cxd4 4. Nxd4 a6 5. Be3 Nf6 6. Nc3 Ng4 7. Bg5 h6 8. Bh4 g5 9. Bg3 h5 10. h4 Bg7 11. Qd2 Qb6 12. 0-0-0 Bxd4 13. Qxd4 Qxd4 14. Rxd4 Nc6 15. Rd2 gxh4 16. Rxh4 Be6 17. Be2 0-0-0 18. Bxg4 hxg4 19. Nd5 Bxd5 20. exd5 Ne5 21. Rxh8 Rxh8 22. Bxe5 dxe5 23. Re2 f6 24. Re4 Rg8 25. Kd2 Kd7 26. c4 Kd6 27. g3 e6 28. dxe6 Kxe6 29. Kc3 f5 30. Re2 Rd8 31. b4 e4 32. Rd2 Rh8 33. Kd4 Rd8+ 1/2-1/2

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.11"]
[Round "7"]
[White "Topp, Michael"]
[Black "Van Onzen, Jeroen"]
[Result "0-1"]
[ECO "A39"]
[PlyCount "78"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. Nf3 Nf6 6. 0-0 0-0 7. d4 cxd4 8. Nxd4 Qb6 9. Nc2 d6 10. Rb1 Bf5 11. e4 Bg4 12. Qe1 Ne5 13. Be3 Qc7 14. f3 Bd7 15. b3 Rac8 16. Nd4 a6 17. h3 Nc6 18. Nxc6 Bxc6 19. Nd5 Nxd5 20. exd5 Bd7 21. Rc1 Rfe8 22. Qd2 Qb8 23. Rfe1 b5 24. Bg5 bxc4 25. bxc4 Qa7+ 26. Kh2 Bf6 27. Re4 Bf5 28. Rh4 Bxg5 29. Qxg5 e5 30. g4 Bd3 31. Rh6 Qe7 32. Qd2 Bxc4 33. g5 Bxd5 34. Rb1 Bxa2 35. Rb4 Rc4 36. Rb6 Rd4 37. Qxa2 Qxg5 38. Rb7 Qf4+ 39. Kg1 Rf8 0-1

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.11"]
[Round "8"]
[White "Van Onzen, Jeroen"]
[Black "Konken, Fabian"]
[Result "0-1"]
[ECO "B10"]
[PlyCount "112"]
[EventDate "2000.08.07"]
[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. c4 e5 3. Nf3 Qa5 4. Nc3 Nf6 5. d3 Bb4 6. Bd2 d6 7. Be2 0-0 8. 0-0 Bg4 9. Rb1 Nbd7 10. a3 Bxc3 11. bxc3 Qc7 12. Qc2 h6 13. Rfe1 Nh7 14. d4 Rae8 15. h3 Bxf3 16. Bxf3 b6 17. Rbd1 Rd8 18. a4 Rfe8 19. Bc1 Nhf8 20. Ba3 c5 21. d5 Ng6 22. Bc1 Nf6 23. Kh1 Qe7 24. Qe2 Qd7 25. Qc2 Qe7 26. Rg1 Nh7 27. Bh5 Nf4 28. Bxf4 exf4 29. Rge1 Qh4 30. Bf3 Ng5 31. Qd3 Re5 32. Kg1 Rde8 33. Re2 Nh7 34. Kf1 h5 35. Ke1 g5 36. g4 fxg3 37. fxg3 Qxg3+ 38. Kd2 Nf6 39. Kc2 Qf4 40. Rde1 g4 41. hxg4 hxg4 42. Bg2 Nh5 43. Rf1 Qg5 44. Ref2 f6 45. Kb3 Qh4 46. Qd2 Ng3 47. Rg1 Nxe4 48. Bxe4 Rxe4 49. Rgf1 Rf8 50. Qd3 Re7 51. Qf5 g3 52. Rf4 Qh7 53. Rg4+ Kh8 54. Qf3 Re5 55. Rxg3 Rh5 56. Qg2 Rh2 0-1

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.10"]
[Round "6"]
[White "Van Onzen, Jeroen"]
[Black "In't Groen, Erik"]
[Result "1-0"]
[ECO "B50"]
[PlyCount "73"]
[EventDate "2000.08.07"]
[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. Nf3 d6 3. Be2 Nf6 4. d3 Nc6 5. c3 g6 6. 0-0 Bg7 7. Na3 a6 8. Nc2 0-0 9. a3 Qc7 10. Bg5 Rd8 11. Ne3 Be6 12. Bh4 d5 13. Bg3 Qb6 14. exd5 Bxd5 15. Nxd5 Rxd5 16. Nd2 Qxb2 17. Nc4 Qxc3 18. Rc1 Qd4 19. Nb6 Rdd8 20. Nxa8 Rxa8 21. Bf3 Rd8 22. Qb3 Na5 23. Qb6 Nc6 24. Qxb7 Ne5 25. Bxe5 Qxe5 26. Qxa6 Nd7 27. a4 Qf4 28. Qc4 Qxc4 29. Rxc4 Ne5 30. Rxc5 Nxf3+ 31. gxf3 Rxd3 32. Rc8+ Bf8 33. Ra1 Rd6 34. Ra8 f5 35. a5 Kf7 36. a6 Bg7 37. Ra2 1-0

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.09"]
[Round "5"]
[White "Groenewold, Jan Joris"]
[Black "Van Onzen, Jeroen"]
[Result "1-0"]
[ECO "A15"]
[PlyCount "55"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. e3 d5 7. Nc3 dxc4 8. Qa4 Nc6 9. Qxc4 Be6 10. Qxc5 Nd7 11. Qb5 Nb6 12. b3 Bf5 13. d4 e5 14. Rd1 Qc7 15. Bb2 exd4 16. exd4 Rad8 17. Qc5 Rfe8 18. d5 Bf8 19. Nb5 Bxc5 20. Nxc7 Nb4 21. Nxe8 Rxe8 22. Bd4 Bf8 23. Bxb6 axb6 24. Nd4 Bg7 25. Rac1 Nd3 26. Nxf5 Nxc1 27. Nxg7 Ne2+ 28. Kf1 1-0

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.09"]
[Round "4"]
[White "Van Onzen, Jeroen"]
[Black "Knol, Geon"]
[Result "0-1"]
[ECO "C27"]
[PlyCount "50"]
[EventDate "2000.08.07"]
[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 Nf6 3. Nc3 Bc5 4. Bc4 0-0 5. 0-0 d6 6. d3 Bg4 7. Bg5 c6 8. a3 Nbd7 9. Na4 b5 10. Nxc5 Nxc5 11. Ba2 Ne6 12. Bxe6 fxe6 13. h3 Bh5 14. Qd2 Bxf3 15. gxf3 Qe8 16. Kh2 Qh5 17. Rg1 Ne8 18. f4 h6 19. fxe5 Rf3 20. h4 hxg5 21. Qxg5 Qxg5 22. Rxg5 Rxf2+ 23. Kg3 Rxc2 24. exd6 Nxd6 25. Kf4 Rf8+ 0-1

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.08"]
[Round "3"]
[White "De Hoop, Thomas"]
[Black "Van Onzen, Jeroen"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "96"]
[EventDate "2000.08.07"]
[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. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. g3 fxe4 12. Bg2 Bg7 13. Bxe4 0-0 14. Ne3 Qb6 15. Qxd6 Bb7 16. Qd2 Nd4 17. Bxb7 Qxb7 18. 0-0-0 Rfd8 19. Kb1 Rac8 20. c3 Nf3 21. Qxd8+ Rxd8 22. Rxd8+ Bf8 23. Rhd1 Qe4+ 24. Nac2 Kg7 25. g4 Nh4 26. Re1 Qc6 27. Nd5 Nf3 28. Rd1 Bc5 29. Nce3 Bxe3 30. Rg8+ Kh6 31. Nxe3 Nh4 32. g5+ Kh5 33. Rg1 Qe4+ 34. Ka1 Nf5 35. Ng4 Qe2 36. Nf6+ Kh4 37. Rh8 h6 38. gxh6 Qxf2 39. Rhg8 Nxh6 40. Ne4 Qe3 41. R8g3 Qxe4 42. h3 Qf4 43. Rg7 e4 44. Rh7 Kh5 45. Kb1 e3 46. Rhg7 e2 47. Kc2 Qe3 48. h4 e1Q 0-1

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.08"]
[Round "2"]
[White "Van Onzen, Jeroen"]
[Black "Hanley, Craig"]
[Result "0-1"]
[ECO "A40"]
[BlackElo "2294"]
[PlyCount "104"]
[EventDate "2000.08.07"]
[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. c4 b6 3. Nc3 Bb7 4. d4 Bb4 5. Bd3 f5 6. d5 fxe4 7. Bxe4 Qh4 8. Qd4 Nf6 9. Bf4 Nxe4 10. Qxe4 0-0 11. g3 Qf6 12. Nge2 exd5 13. cxd5 Na6 14. 0-0 Rae8 15. Qc4 Bxc3 16. Nxc3 Nc5 17. b4 Ba6 18. b5 Bb7 19. d6+ Re6 20. Nd5 Bxd5 21. Qxd5 c6 22. bxc6 dxc6 23. Qc4 Rf7 24. Rad1 Re4 25. Qc2 Qe6 26. Be3 Rc4 27. Qd2 Rd7 28. Bxc5 Rxc5 29. Rfe1 Re5 30. Re3 c5 31. Rf3 h6 32. a3 Re4 33. Rd3 Re2 34. Qc1 Qf5 35. Qc4+ Kh7 36. Rf1 Re4 37. Qc3 c4 38. Rd4 b5 39. Rfd1 Re2 40. Rf4 Qc5 41. Qf3 Re6 42. Rf5 Qb6 43. Rf8 Rdxd6 44. Qf5+ Rg6 45. Rxd6 Qxd6 46. Qc8 Re6 47. Rd8 Qc6 48. Qxc6 Rxc6 49. Rd2 a5 50. Kf1 c3 51. Rc2 b4 52. axb4 axb4 0-1

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.07"]
[Round "1"]
[White "Tates, Thomas"]
[Black "Van Onzen, Jeroen"]
[Result "0-1"]
[ECO "D45"]
[PlyCount "200"]
[EventDate "2000.08.07"]
[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. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Nbd7 6. cxd5 exd5 7. Bd3 Bd6 8. 0-0 0-0 9. Re1 Re8 10. Qc2 c5 11. Bf1 Nf8 12. b3 Bg4 13. dxc5 Bxc5 14. Bb2 Rc8 15. Qd3 Bxf3 16. gxf3 d4 17. Na4 dxe3 18. Nxc5 exf2+ 19. Kxf2 Rxc5 20. Rxe8 Qxe8 21. Re1 Qc6 22. Bd4 Rd5 23. Qe3 Rf5 24. Bxf6 Rxf6 25. Rc1 Qd6 26. Kg1 Re6 27. Qf2 Qf4 28. Rc4 Qg5+ 29. Qg3 Qe3+ 30. Qf2 Rg6+ 31. Bg2 Qd3 32. Re4 h6 33. Rg4 Qd1+ 34. Qf1 Qc2 35. Qf2 Qb1+ 36. Bf1 b6 37. Rxg6 Qxg6+ 38. Qg3 Kh7 39. f4 Qxg3+ 40. hxg3 Kg6 41. Kg2 Ne6 42. Bd3+ Kf6 43. Kf3 g5 44. fxg5+ hxg5 45. g4 Ke5 46. Ke3 Nc5 47. Bf5 Nb7 48. Bc8 Nd6 49. Bd7 f5 50. gxf5 Nxf5+ 51. Kf3 Nh6 52. Kg3 Ke4 53. Bc6+ Ke5 54. Bd7 a5 55. a4 Kf6 56. Bc6 Nf7 57. Bd5 Ne5 58. Bg8 Kf5 59. Bd5 g4 60. Bg8 Nc6 61. Bd5 Nd4 62. Bc4 Kg5 63. Ba6 Nf5+ 64. Kg2 Kf4 65. Bb7 Nd4 66. Bd5 Nc2 67. Bb7 Ne3+ 68. Kg1 g3 69. Bc6 Nf5 70. Kg2 Ke3 71. Bd5 Kd4 72. Be6 Ke5 73. Bg8 Kf4 74. Bf7 Ne3+ 75. Kg1 Kg4 76. Be8 g2 77. Bc6 Kg3 78. Bb7 Kf4 79. Bc6 Ke5 80. Be8 Kd4 81. Bf7 Kc3 82. Be6 Kb4 83. Bf7 Ka3 84. Kf2 Nc2 85. Kxg2 Na1 86. Be8 Nxb3 87. Kf2 Nc5 88. Ke2 Nxa4 89. Kd2 Nc5 90. Kc2 a4 91. Kb1 Kb4 92. Ka2 b5 93. Bc6 Kc4 94. Kb2 b4 95. Kb1 b3 96. Bf3 Kc3 97. Bd1 Ne6 98. Bg4 Nd4 99. Bd7 a3 100. Be8 a2+ 0-1

[Event "Zwolle KPMG op"]
[Site "Zwolle"]
[Date "2000.03.11"]
[Round "3"]
[White "Van Onzen, Jeroen"]
[Black "Schebler, Gerhard"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1826"]
[BlackElo "2442"]
[PlyCount "120"]
[EventDate "2000.03.11"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 g6 3. Bxf6 exf6 4. e3 Bg7 5. Bd3 0-0 6. Ne2 f5 7. c4 d6 8. Nbc3 Nd7 9. Rc1 Nf6 10. 0-0 Re8 11. Ng3 h5 12. Qd2 c6 13. Rfe1 h4 14. Nf1 Ne4 15. Qc2 Qe7 16. f3 Nxc3 17. bxc3 Bd7 18. Qd2 Rad8 19. e4 fxe4 20. Rxe4 Qf6 21. Rce1 Rxe4 22. Rxe4 Bf5 23. Re2 Bc8 24. Qe1 Bh6 25. Nd2 Bxd2 26. Qxd2 h3 27. g3 Kg7 28. Qe3 Bd7 29. Qe7 Be6 30. Qxf6+ Kxf6 31. Rb2 b6 32. Kf2 d5 33. cxd5 Rxd5 34. Bc4 Ra5 35. Bxe6 Kxe6 36. Ke3 c5 37. dxc5 Rxc5 38. Kd3 Rd5+ 39. Kc4 Re5 40. Kd3 Rd5+ 41. Ke3 Rd1 42. Ke2 Rg1 43. Ke3 g5 44. Rc2 Kd5 45. f4 g4 46. f5 Rf1 47. Rd2+ Ke5 48. Rd7 Rf3+ 49. Ke2 f6 50. Rxa7 Rxc3 51. Kd2 Rc4 52. Ra6 Rb4 53. Kc3 Rb1 54. a4 Kxf5 55. Kc2 Rh1 56. Rxb6 Rxh2+ 57. Kb3 Rg2 58. Rb5+ Kg6 59. a5 Rxg3+ 60. Ka4 h2 0-1

