[Event "Groningen op 56th"]
[Site "Groningen"]
[Date "2018.12.30"]
[Round "9"]
[White "De Boer, Bas"]
[Black "Van der Berg, Wessel"]
[Result "1/2-1/2"]
[ECO "A55"]
[WhiteElo "2134"]
[BlackElo "2032"]
[PlyCount "81"]
[EventDate "2018.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c6 3. Nc3 d6 4. Nf3 Nbd7 5. e4 e5 6. Be2 Qc7 7. 0-0 Be7 8. Be3 Nf8 9. d5 c5 10. Ne1 Ng6 11. Nd3 0-0 12. f3 Nh5 13. Qd2 f5 14. exf5 Bxf5 15. b4 Bxd3 16. Bxd3 b6 17. bxc5 bxc5 18. Bxg6 hxg6 19. Ne4 Qd7 20. Rab1 Nf4 21. Bxf4 exf4 22. Rb5 Bf6 23. Rfb1 Bd4+ 24. Kh1 Qd8 25. Rb7 Rf5 26. Nf2 Kh7 27. Ng4 Qe8 28. Re1 Qa4 29. Qe2 Raf8 30. Rb3 Rh8 31. Qd3 Re8 32. Re4 Rff8 33. a3 Rb8 34. Rxb8 Rxb8 35. Re6 Qxc4 36. Qxg6+ Kh8 37. Qh5+ Kg8 38. Re8+ Rxe8 39. Qxe8+ Kh7 40. Qh5+ Kg8 41. Qe8+ 1/2-1/2

[Event "Groningen op 56th"]
[Site "Groningen"]
[Date "2018.12.29"]
[Round "8"]
[White "Theulings, Paul Peter"]
[Black "Van der Berg, Wessel"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "2098"]
[BlackElo "2032"]
[PlyCount "15"]
[EventDate "2018.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nf6 3. Nc3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Bg4 7. Qa4 Bh5 8. Ne5 1-0

[Event "Groningen op 56th"]
[Site "Groningen"]
[Date "2018.12.28"]
[Round "7"]
[White "Van der Berg, Wessel"]
[Black "Duson, Robin"]
[Result "0-1"]
[ECO "B44"]
[WhiteElo "2032"]
[BlackElo "1951"]
[PlyCount "61"]
[EventDate "2018.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. g3 Qc7 6. Be3 a6 7. c4 b6 8. a3 Nf6 9. Nc3 Bb7 10. Nxc6 Qxc6 11. f3 Bc5 12. Qd2 0-0 13. Bg5 Be7 14. 0-0-0 d6 15. h4 Rfd8 16. Kb1 Rac8 17. g4 Qd7 18. h5 d5 19. cxd5 exd5 20. Bf4 Qc6 21. e5 Ne8 22. g5 Bxa3 23. Na2 Ba8 24. Bd3 Qe6 25. Qe2 d4 26. Qd2 Qb3 27. Nc1 Qa4 28. e6 Bd5 29. exf7+ Bxf7 30. Bxh7+ Kh8 31. Qd3 0-1

[Event "Groningen op 56th"]
[Site "Groningen"]
[Date "2018.12.27"]
[Round "6"]
[White "Van der Berg, Wessel"]
[Black "Van Leusden, Dennis"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2032"]
[BlackElo "2016"]
[PlyCount "92"]
[EventDate "2018.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bb5 Nd4 6. Nxd4 Bxd4 7. Ne2 Bg7 8. c4 e6 9. 0-0 Ne7 10. Rb1 0-0 11. d4 cxd4 12. Nxd4 a6 13. Ba4 b5 14. cxb5 axb5 15. Bc2 Nc6 16. Be3 Nxd4 17. Bxd4 Rxa2 18. Bxg7 Kxg7 19. f5 f6 20. Qg4 Qb6+ 21. Kh1 Qd4 22. fxg6 hxg6 23. Rf3 Rxb2 24. Rxb2 f5 25. Qg5 Qxb2 26. Bd3 Qf6 27. Qe3 Bb7 28. e5 Qh4 29. Rh3 f4 30. Rxh4 fxe3 31. Rg4 Rf2 32. Rxg6+ Kf7 33. Kg1 Rd2 34. Rf6+ Ke7 35. Bxb5 Rxg2+ 36. Kf1 Rxh2 37. Rg6 Kd8 38. Rg3 Rb2 39. Bc4 Rc2 40. Bd3 Rf2+ 41. Ke1 Bf3 42. Bb5 Kc7 43. Bc4 Kb6 44. Bf1 Kc5 45. Rg7 Rd2 46. Rg3 Rd1# 0-1

[Event "Groningen op 56th"]
[Site "Groningen"]
[Date "2018.12.26"]
[Round "5"]
[White "Van Roon, Sjoerd"]
[Black "Van der Berg, Wessel"]
[Result "1-0"]
[ECO "B96"]
[WhiteElo "2136"]
[BlackElo "2032"]
[PlyCount "61"]
[EventDate "2018.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 8. Bh4 Be7 9. Bf2 Qc7 10. Qe2 b5 11. a3 Nbd7 12. 0-0-0 Nb6 13. g4 g5 14. fxg5 hxg5 15. Bg2 Bb7 16. Bg3 Nc4 17. e5 dxe5 18. Bxb7 Qxb7 19. Bxe5 Rh3 20. Bxf6 Bxf6 21. Ne4 Bxd4 22. Rxd4 Kf8 23. Rf1 Qe7 24. Nd6 Rd8 25. Rxf7+ Qxf7 26. Nxf7 Rxd4 27. Nxg5 Re3 28. Nxe6+ Rxe6 29. Qxe6 Rd6 30. Qf5+ Kg7 31. Kb1 1-0

[Event "Groningen op 56th"]
[Site "Groningen"]
[Date "2018.12.24"]
[Round "4"]
[White "Van der Berg, Wessel"]
[Black "Krasenkova, Ilena"]
[Result "0-1"]
[ECO "A35"]
[WhiteElo "2032"]
[BlackElo "2144"]
[PlyCount "142"]
[EventDate "2018.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. c4 g6 2. Nc3 Bg7 3. d4 c5 4. Nf3 cxd4 5. Nxd4 Nc6 6. Nxc6 bxc6 7. Qd2 Nf6 8. e4 d6 9. Bd3 0-0 10. b3 e5 11. Ba3 Re8 12. Bc2 Bf8 13. 0-0-0 Ng4 14. Kb2 Qb6 15. c5 dxc5 16. h3 Nf6 17. Na4 Qb5 18. Bd3 Qb8 19. Bxc5 Bxc5 20. Nxc5 a5 21. Bc4 Kg7 22. f3 a4 23. Qd6 Qb6 24. Rd2 axb3 25. a4 Bxh3 26. Rhd1 Rad8 27. a5 Qxa5 28. Nxb3 Rxd6 29. Nxa5 Rxd2+ 30. Rxd2 Be6 31. Rd6 Ra8 32. Bxe6 Rxa5 33. Bc4 c5 34. Rc6 Ne8 35. Bd5 h5 36. Kc3 h4 37. Kd3 Kf8 38. Rb6 Ra7 39. Rb8 Ke7 40. Kc4 Rc7 41. Kb5 Nd6+ 42. Kb6 Rc8 43. Rxc8 Nxc8+ 44. Kxc5 g5 45. Bb3 Kf6 46. Ba4 Ne7 47. Kd6 Ng6 48. Bd7 Nf4 49. Bh3 Nd3 50. Bf5 Nb2 51. Bh3 Nc4+ 52. Kc5 Ne3 53. Kd6 Nc2 54. Kd5 Nd4 55. Bg4 Ne2 56. Bh3 Nf4+ 57. Kd6 Ng6 58. Bf5 Nf4 59. Bh3 Nh5 60. Kd5 Ng3 61. Bg4 Ne2 62. Bh3 Nc1 63. Bg4 Nd3 64. Bh3 Ke7 65. Kc4 Nf4 66. Kc5 f6 67. Kc6 Nxh3 68. gxh3 Ke6 69. Kc5 f5 70. Kc4 fxe4 71. fxe4 g4 0-1

[Event "Groningen op 56th"]
[Site "Groningen"]
[Date "2018.12.23"]
[Round "3"]
[White "Van Baar, Esper"]
[Black "Van der Berg, Wessel"]
[Result "0-1"]
[ECO "B52"]
[WhiteElo "2205"]
[BlackElo "2032"]
[PlyCount "60"]
[EventDate "2018.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. 0-0 Nc6 6. c3 Nf6 7. Re1 Qg4 8. d4 cxd4 9. cxd4 d5 10. exd5 Nxd5 11. Qb3 0-0-0 12. h3 Qf5 13. Nc3 Ndb4 14. Re2 e6 15. Be3 g5 16. Bxg5 Rg8 17. d5 Nxd5 18. Nxd5 Rxd5 19. Re3 Bc5 20. Rc3 Rxg5 21. Nxg5 Qxf2+ 22. Kh1 Rxg5 23. Rc2 Qf4 24. Rd1 Bd6 25. g4 Rd5 26. Rg2 Rxd1+ 27. Qxd1 Nd4 28. b3 Qe4 29. Qd2 Qb1+ 30. Rg1 Qxg1+ 0-1

[Event "Groningen op 56th"]
[Site "Groningen"]
[Date "2018.12.23"]
[Round "2"]
[White "Van der Berg, Wessel"]
[Black "Vogel, Jaap"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "2032"]
[BlackElo "2193"]
[PlyCount "62"]
[EventDate "2018.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. c3 c5 5. Ngf3 Nc6 6. Qc2 Be7 7. Be2 0-0 8. h3 b5 9. Nf1 b4 10. g4 Ba6 11. c4 dxe4 12. dxe4 Nd4 13. Nxd4 cxd4 14. Bf4 Bb7 15. Nd2 Nd7 16. 0-0-0 e5 17. Bg3 Bg5 18. h4 Bxd2+ 19. Rxd2 Nc5 20. Bd3 Qa5 21. b3 Qa3+ 22. Kd1 Rfe8 23. Re1 a5 24. Ke2 a4 25. Rb1 axb3 26. axb3 Qa6 27. Rb2 Qg6 28. f3 h5 29. Ra2 hxg4 30. Rxa8 gxf3+ 31. Kxf3 Bxa8 0-1

[Event "Groningen op 56th"]
[Site "Groningen"]
[Date "2018.12.22"]
[Round "1"]
[White "Ashwath, R."]
[Black "Van der Berg, Wessel"]
[Result "1-0"]
[ECO "A53"]
[WhiteElo "2314"]
[BlackElo "2032"]
[PlyCount "51"]
[EventDate "2018.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c6 3. Nc3 d6 4. e4 Nbd7 5. g3 e5 6. Nge2 Be7 7. Bg2 Qc7 8. h3 a6 9. Be3 Rb8 10. Rc1 0-0 11. 0-0 b5 12. cxb5 axb5 13. Nd5 Nxd5 14. exd5 c5 15. dxc5 dxc5 16. g4 Nb6 17. Ng3 Nc4 18. Qe2 Nxe3 19. Qxe3 Rd8 20. Rfe1 f6 21. Be4 Qa5 22. Qd3 Qxa2 23. Bxh7+ Kh8 24. Qg6 Qa4 25. Nh5 Bf8 26. Bg8 1-0

[Event "Groningen op-B 53rd"]
[Site "Groningen"]
[Date "2015.12.30"]
[Round "9"]
[White "Van Roon, Sjoerd"]
[Black "Van der Berg, Wessel"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "1949"]
[BlackElo "1975"]
[PlyCount "68"]
[EventDate "2015.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. Nc3 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qa4 Qc7 5. Bf4 d6 6. Nd5 Qb8 7. e4 e6 8. Nc3 a6 9. 0-0-0 Nf6 10. Qa3 Ne5 11. Nf3 Be7 12. Be2 b5 13. Qa5 Nc6 14. Bxb5 axb5 15. Qxb5 Qxb5 16. Nxb5 0-0 17. Nxd6 Rxa2 18. Kb1 Ra6 19. e5 Nd5 20. Bg3 Bd7 21. c3 Rb8 22. Kc2 Ra2 23. Nc4 Na5 24. Nxa5 Rbxb2+ 25. Kd3 Rxa5 26. Ra1 Rxa1 27. Rxa1 Rb3 28. Bh4 Rxc3+ 29. Kd2 Bb4 30. Kd1 Rc8 31. Nd4 Bc3 32. Ra7 Bxd4 33. Rxd7 Bxe5 34. h3 h6 0-1

[Event "Groningen op-B 53rd"]
[Site "Groningen"]
[Date "2015.12.29"]
[Round "8"]
[White "Van der Berg, Wessel"]
[Black "Den Dunnen, Lola"]
[Result "0-1"]
[ECO "A37"]
[WhiteElo "1975"]
[BlackElo "1818"]
[PlyCount "38"]
[EventDate "2015.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Rb1 e6 6. Nf3 Nge7 7. 0-0 0-0 8. a3 d5 9. cxd5 exd5 10. b4 Bf5 11. e4 dxe4 12. Nh4 cxb4 13. Nxf5 gxf5 14. axb4 Ne5 15. h3 N7c6 16. g4 Nd4 17. gxf5 Nef3+ 18. Bxf3 Nxf3+ 19. Kg2 Qg5+ 0-1

[Event "Waling Dijkstra Gr-A"]
[Site "Leeuwarden"]
[Date "2009.11.13"]
[Round "1"]
[White "Struik, Tjapko"]
[Black "Van der Berg, Wessel"]
[Result "1-0"]
[ECO "A44"]
[WhiteElo "2240"]
[BlackElo "1948"]
[PlyCount "39"]
[EventDate "2009.11.13"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 c5 2. d5 e5 3. e4 d6 4. Nc3 Na6 5. f4 exf4 6. Bxf4 h5 7. Nf3 f6 8. Bd3 g5 9. Be3 Nc7 10. e5 dxe5 11. Bg6+ Kd7 12. Ne4 Na6 13. 0-0 Qb6 14. Nxe5+ fxe5 15. Rxf8 Qxg6 16. Qd3 Qg7 17. Qb5+ Kc7 18. d6+ Kb8 19. Rxc8+ Kxc8 20. Qe8# 1-0

[Event "Groningen Harmonie op-B"]
[Site "Groningen"]
[Date "2007.12.28"]
[Round "7"]
[White "Bijlsma, Nick"]
[Black "Van der Berg, Wessel"]
[Result "1-0"]
[ECO "B41"]
[PlyCount "57"]
[EventDate "2007.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 121 Extra"]
[Source "ChessBase"]
[SourceDate "2008.01.10"]
[SourceVersion "1"]
[SourceVersionDate "2008.01.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd3 Qc7 8. 0-0 Nc6 9. Nc2 Bxc3 10. bxc3 Ne5 11. Ne3 d6 12. f4 Nxd3 13. Qxd3 0-0 14. Ba3 Rd8 15. Rfd1 d5 16. cxd5 Qxf4 17. Be7 Re8 18. Bxf6 gxf6 19. Rf1 Qg5 20. Rf3 Kh8 21. Rg3 Qh6 22. Ng4 Qg5 23. Rf1 f5 24. exf5 e5 25. Nxe5 Qf6 26. Nxf7+ Qxf7 27. Qd4+ Re5 28. Qxe5+ Qf6 29. Qxf6# 1-0

[Event "Groningen Harmonie op-B"]
[Site "Groningen"]
[Date "2007.12.27"]
[Round "6"]
[White "Van der Berg, Wessel"]
[Black "Slagter, Ruben"]
[Result "1/2-1/2"]
[ECO "B23"]
[BlackElo "1895"]
[PlyCount "99"]
[EventDate "2007.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 121 Extra"]
[Source "ChessBase"]
[SourceDate "2008.01.10"]
[SourceVersion "1"]
[SourceVersionDate "2008.01.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Bb5 Bg7 5. Nf3 Nd4 6. 0-0 Nxb5 7. Nxb5 a6 8. Nc3 d6 9. d3 b5 10. f5 Nf6 11. Nh4 b4 12. Ne2 0-0 13. c3 e6 14. fxg6 fxg6 15. Bg5 a5 16. Qd2 e5 17. c4 Ra7 18. Rf2 Raf7 19. Raf1 Qe8 20. h3 Be6 21. Ng3 Nd7 22. Nf3 Nb8 23. Bh6 Nc6 24. Bxg7 Kxg7 25. Ng5 Rxf2 26. Rxf2 Rxf2 27. Nxe6+ Qxe6 28. Qxf2 Qf6 29. Nf1 a4 30. Ne3 b3 31. Qxf6+ Kxf6 32. Nd5+ Ke6 33. a3 Nb4 34. Nc3 Nxd3 35. Nxa4 h5 36. g3 g5 37. h4 gxh4 38. gxh4 Kd7 39. Kf1 Kc6 40. Ke2 Nf4+ 41. Kf3 Kb7 42. Nc3 Nd3 43. Nd1 Kb6 44. Ke3 Ne1 45. Kd2 Nf3+ 46. Kc3 Nxh4 47. Kxb3 Nf3 48. Kc3 Ng5 49. Nf2 h4 50. b4 1/2-1/2

[Event "Groningen Harmonie op-B"]
[Site "Groningen"]
[Date "2007.12.26"]
[Round "5"]
[White "Tromp, Paul"]
[Black "Van der Berg, Wessel"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2119"]
[PlyCount "67"]
[EventDate "2007.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 121 Extra"]
[Source "ChessBase"]
[SourceDate "2008.01.10"]
[SourceVersion "1"]
[SourceVersionDate "2008.01.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 exd5 5. d4 Nf6 6. Bg5 c4 7. g3 Bd6 8. Bg2 Qe7+ 9. Qe2 Qxe2+ 10. Kxe2 Ne4 11. Nbd2 Bg4 12. h3 Bxf3+ 13. Nxf3 Nd7 14. Rhe1 0-0 15. Kf1 b5 16. Be3 f5 17. Ng5 Rf6 18. g4 h6 19. Nxe4 fxe4 20. Kg1 g5 21. Bd2 a5 22. h4 Bf4 23. hxg5 hxg5 24. Be3 Raf8 25. a4 b4 26. b3 cxb3 27. cxb4 axb4 28. Reb1 Ra8 29. Rxb3 Rb6 30. Bf1 Nf6 31. a5 Rbb8 32. Be2 Ne8 33. Kg2 Nd6 34. Rab1 1/2-1/2

[Event "Groningen Harmonie op-B"]
[Site "Groningen"]
[Date "2007.12.24"]
[Round "4"]
[White "Van der Berg, Wessel"]
[Black "Sparenberg, Erik"]
[Result "1/2-1/2"]
[ECO "E61"]
[BlackElo "2024"]
[PlyCount "106"]
[EventDate "2007.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 121 Extra"]
[Source "ChessBase"]
[SourceDate "2008.01.10"]
[SourceVersion "1"]
[SourceVersionDate "2008.01.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Bg5 d6 5. Nf3 c6 6. e3 Qa5 7. Bd3 Bg4 8. Qa4 Qxa4 9. Nxa4 Nfd7 10. Nd2 f6 11. Bh4 Na6 12. h3 Be6 13. a3 Nc7 14. 0-0 Bf7 15. f4 f5 16. Bg3 0-0 17. Nf3 c5 18. Nc3 b6 19. Rac1 Rac8 20. Rc2 e6 21. Rd1 Nf6 22. dxc5 dxc5 23. Ne5 Nh5 24. Bh4 Bxe5 25. fxe5 Be8 26. Be2 Bc6 27. Bxh5 gxh5 28. Ne2 Ba4 29. Rcd2 Bxd1 30. Rxd1 b5 31. b3 bxc4 32. bxc4 Ne8 33. Nf4 Ng7 34. Bf6 Rf7 35. Rd6 Ne8 36. Rxe6 Nxf6 37. exf6 Rd7 38. Nd5 Kf7 39. Ra6 Rb7 40. Kh2 h4 41. Ne7 Rd8 42. Nxf5 Rb6 43. Rxa7+ Kxf6 44. Ne7 Ke5 45. Nd5 Rh6 46. Re7+ Kd6 47. e4 Rh5 48. e5+ Rxe5 49. Rxh7 Re4 50. Rh6+ Ke5 51. Rh5+ Kd4 52. Nf6 Rf4 53. Nd5 Re4 1/2-1/2

[Event "Groningen Harmonie op-B"]
[Site "Groningen"]
[Date "2007.12.23"]
[Round "3"]
[White "Van Genk, Jozef"]
[Black "Van der Berg, Wessel"]
[Result "0-1"]
[ECO "B41"]
[PlyCount "28"]
[EventDate "2007.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 121 Extra"]
[Source "ChessBase"]
[SourceDate "2008.01.10"]
[SourceVersion "1"]
[SourceVersionDate "2008.01.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Be3 Nf6 6. f3 Qc7 7. Qd2 d5 8. Bd3 e5 9. Nb3 Be6 10. 0-0 Nbd7 11. Bf2 Be7 12. Qc3 Qd8 13. Rd1 a5 14. a4 Bb4 0-1

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2005.12.29"]
[Round "8"]
[White "Wustefeld, Emile"]
[Black "Van der Berg, Wessel"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2317"]
[PlyCount "57"]
[EventDate "2005.12.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 Nc6 4. Nf3 e6 5. Bb5 Bd7 6. 0-0 a6 7. Bxc6 Bxc6 8. d3 g6 9. d4 b6 10. d5 Bb7 11. dxe6 fxe6 12. f5 exf5 13. exf5 Bh6 14. Qd3 Bxc1 15. Raxc1 gxf5 16. Rce1+ Ne7 17. Qxf5 Qd7 18. Rxe7+ Kxe7 19. Re1+ Kd8 20. Qf6+ Kc7 21. Re7 Rhg8 22. Rxd7+ Kxd7 23. Qf7+ Kc6 24. Nd5 Raf8 25. Ne5+ dxe5 26. Qe6+ Kb5 27. Qxb6+ Kc4 28. Qb3+ Kd4 29. Qd3# 1-0

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2005.12.28"]
[Round "5"]
[White "Huizinga, Egbert"]
[Black "Van der Berg, Wessel"]
[Result "0-1"]
[ECO "B84"]
[PlyCount "42"]
[EventDate "2005.12.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 a6 7. Be3 e6 8. 0-0 Qc7 9. Qd2 b5 10. f3 Be7 11. Bd3 Bb7 12. Nxc6 Bxc6 13. Ne2 d5 14. e5 Qxe5 15. a4 0-0 16. Bf4 Qh5 17. g4 Qh3 18. Rf2 Bc5 19. Raf1 Qxf3 20. Ng3 Nxg4 21. Bd6 Nxf2 0-1

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2005.12.28"]
[Round "6"]
[White "Van der Berg, Wessel"]
[Black "Kleijn, Christov"]
[Result "1-0"]
[ECO "B99"]
[BlackElo "2059"]
[PlyCount "73"]
[EventDate "2005.12.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. 0-0-0 Nbd7 10. Bd3 h6 11. Bh4 g5 12. fxg5 Ne5 13. Qe2 Nfg4 14. Kb1 hxg5 15. Bg3 Bd7 16. h3 Nf6 17. Qe3 Nh5 18. Bh2 Qc5 19. Be2 0-0-0 20. Rhf1 Nf6 21. Bg1 Rhg8 22. Nf3 Qxe3 23. Bxe3 Nxf3 24. Bxf3 Bc6 25. g4 Kc7 26. Bg2 b5 27. a3 a5 28. Bd4 Rg6 29. Rde1 Rb8 30. b4 axb4 31. axb4 Kd7 32. Kb2 Ke8 33. Re2 Nd7 34. Ref2 f6 35. Kb3 Bd8 36. Rd1 Ke7 37. e5 1-0

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2005.12.27"]
[Round "4"]
[White "Van der Berg, Wessel"]
[Black "Salihbegovic, Edim"]
[Result "0-1"]
[ECO "B01"]
[PlyCount "52"]
[EventDate "2005.12.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb6 5. Nc3 g6 6. Be3 Bg7 7. h3 Nc6 8. Nf3 0-0 9. Be2 e5 10. d5 Ne7 11. Qd2 Nf5 12. Bc5 Re8 13. Ne4 Nd6 14. Nxd6 cxd6 15. Ba3 f5 16. 0-0 Qf6 17. Rad1 Bd7 18. b4 e4 19. Nd4 f4 20. Ne6 Bxe6 21. dxe6 f3 22. gxf3 exf3 23. Bd3 Qh4 24. Rfe1 Bh6 25. Qc3 Qg5+ 26. Kh1 Qg2# 0-1

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2005.12.26"]
[Round "3"]
[White "Groot, Simon"]
[Black "Van der Berg, Wessel"]
[Result "1/2-1/2"]
[ECO "B50"]
[PlyCount "44"]
[EventDate "2005.12.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 Nc6 5. d4 cxd4 6. cxd4 Nxe4 7. d5 Qa5+ 8. Nc3 Nb8 9. 0-0 Nxc3 10. bxc3 Nd7 11. Rb1 a6 12. c4 Nc5 13. Nd4 Qxa2 14. Be3 g6 15. Ra1 Qb2 16. Nb5 Bg7 17. Rb1 axb5 18. Rxb2 Bxb2 19. Bxc5 dxc5 20. Qb3 Bd4 21. Qxb5+ Kf8 22. Rd1 Ra2 1/2-1/2

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2005.12.24"]
[Round "2"]
[White "Van der Berg, Wessel"]
[Black "Hulshof, Peter"]
[Result "0-1"]
[ECO "B06"]
[BlackElo "2232"]
[PlyCount "76"]
[EventDate "2005.12.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Nf3 d6 5. h3 Qb6 6. Bc4 e6 7. Bb3 Ne7 8. 0-0 0-0 9. Bf4 Rd8 10. Qd2 d5 11. Na4 Qb5 12. Nc5 dxe4 13. c4 Qxc5 14. dxc5 Rxd2 15. Nxd2 e5 16. Bg5 f6 17. Be3 f5 18. Bg5 Kf7 19. f3 exf3 20. Rxf3 Na6 21. Be3 Ke8 22. Rb1 Be6 23. g3 Rd8 24. a3 e4 25. Rff1 Rd3 26. Kf2 Bd4 27. Bxd4 Rxd2+ 28. Ke3 Rd3+ 29. Kf4 Rxd4 30. Ke5 Rd3 31. Kxe6 Nxc5+ 32. Kf6 Rxb3 33. g4 Rxh3 34. gxf5 gxf5 35. b4 Nd7+ 36. Kg7 Rg3+ 37. Kxh7 Nf6+ 38. Kh6 Rg6# 0-1

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2005.12.23"]
[Round "1"]
[White "Vinke, Andreas"]
[Black "Van der Berg, Wessel"]
[Result "1/2-1/2"]
[ECO "D13"]
[WhiteElo "2197"]
[PlyCount "38"]
[EventDate "2005.12.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. c4 c6 2. Nc3 d5 3. cxd5 cxd5 4. d4 e6 5. Bf4 Nf6 6. Nf3 Bd6 7. Bg3 a6 8. e3 b5 9. Bd3 Bb7 10. Ne5 Nc6 11. Rc1 Rc8 12. f4 0-0 13. Bh4 Be7 14. 0-0 Na5 15. Bxf6 Bxf6 16. b4 Nc4 17. Nxc4 dxc4 18. Be4 Bxe4 19. Nxe4 Be7 1/2-1/2

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2003.12.23"]
[Round "3"]
[White "Van Geffen, Ben"]
[Black "Van der Berg, Wessel"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "2150"]
[PlyCount "102"]
[EventDate "2003.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. a4 Be7 6. Nc3 Ngf6 7. 0-0 0-0 8. Qe2 a5 9. Rd1 Qc7 10. h3 h6 11. Be3 Rd8 12. Rd2 Nf8 13. dxe5 dxe5 14. Rxd8 Bxd8 15. Rd1 Be6 16. Bc5 Bxc4 17. Qxc4 Be7 18. Bxe7 Qxe7 19. Qd3 Re8 20. Qd6 Qxd6 21. Rxd6 N8d7 22. Nd2 Nb6 23. Kf1 Kf8 24. b3 Ke7 25. Rd3 Rd8 26. Rxd8 Kxd8 27. Nd1 Nfd7 28. Ne3 g6 29. h4 h5 30. g3 Ke7 31. Ke2 Ke6 32. f4 f5 33. Kf3 exf4 34. exf5+ gxf5 35. Kxf4 Nd5+ 36. Nxd5 cxd5 37. Nf3 Kf6 38. Nd4 Ne5 39. Ke3 Ng6 40. Nf3 b6 41. Kd4 Ke6 42. c4 dxc4 43. Kxc4 Ne5+ 44. Nxe5 Kxe5 45. Kb5 Ke4 46. Kxb6 Kf3 47. Kxa5 Kxg3 48. b4 f4 49. b5 f3 50. b6 f2 51. b7 f1Q 1/2-1/2

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2003.12.22"]
[Round "2"]
[White "Van der Berg, Wessel"]
[Black "Leuw, Micha"]
[Result "0-1"]
[ECO "A04"]
[BlackElo "2211"]
[PlyCount "40"]
[EventDate "2003.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d3 Nc6 4. g3 d6 5. Bg2 Nge7 6. 0-0 g6 7. c3 Bg7 8. Bf4 0-0 9. Na3 b6 10. Qd2 Ba6 11. Rad1 Re8 12. Bh6 Bh8 13. Ng5 Ne5 14. Qf4 N7c6 15. d4 Bxf1 16. dxe5 Nxe5 17. Bxf1 f6 18. Bb5 fxg5 19. Bxg5 Qxg5 20. Bxe8 Rxe8 0-1

[Event "NED-chB sf"]
[Site "Leeuwarden"]
[Date "2002.12.08"]
[Round "2.2"]
[White "Van Bavel, Ferdi"]
[Black "Van der Berg, Wessel"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "1806"]
[BlackElo "1924"]
[PlyCount "81"]
[EventDate "2002.11.30"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "CBM 091 Extra"]
[Source "ChessBase"]
[SourceDate "2003.01.09"]
[SourceVersion "1"]
[SourceVersionDate "2003.01.09"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 Nc6 5. d4 cxd4 6. cxd4 Nxe4 7. d5 Qa5+ 8. Nc3 Nb8 9. 0-0 Nxc3 10. bxc3 Nd7 11. Be3 Nf6 12. c4 g6 13. c5 Bg7 14. cxd6 exd6 15. Rb1 0-0 16. Bc4 Ne4 17. Rb5 Qc7 18. Qb3 Nc3 19. Rb4 a5 20. Rb6 a4 21. Qb4 a3 22. Bb3 Ne2+ 23. Kh1 Rd8 24. Bg5 f6 25. Bd2 Qc5 26. Qxc5 dxc5 27. Re1 Nd4 28. Nxd4 cxd4 29. Re7 Bf8 30. d6+ Kh8 31. Bb4 Bxe7 32. dxe7 Re8 33. Rxf6 Bf5 34. Rf7 Rac8 35. h3 Bd7 36. Bd6 Rc1+ 37. Kh2 Re1 38. f4 d3 39. Be5+ Rxe5 40. fxe5 Bb5 41. Kg3 1-0

[Event "NED-chB sf"]
[Site "Leeuwarden"]
[Date "2002.12.08"]
[Round "2.3"]
[White "Van Bavel, Ferdi"]
[Black "Van der Berg, Wessel"]
[Result "0-1"]
[ECO "C24"]
[WhiteElo "1806"]
[BlackElo "1924"]
[PlyCount "54"]
[EventDate "2002.11.30"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "CBM 091 Extra"]
[Source "ChessBase"]
[SourceDate "2003.01.09"]
[SourceVersion "1"]
[SourceVersionDate "2003.01.09"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. Bc4 Be7 4. d3 0-0 5. f4 d6 6. Nf3 Nbd7 7. 0-0 c6 8. fxe5 dxe5 9. Qe1 a5 10. a4 Qc7 11. Nd1 Nc5 12. Qg3 Bd6 13. Bh6 Ne8 14. Ng5 Be6 15. Ne3 Bxc4 16. dxc4 f6 17. Nh3 Nxe4 18. Qg4 Nc5 19. Nf5 Ne6 20. Nf2 Nd4 21. Ne4 Nxf5 22. Rxf5 Kh8 23. c5 gxh6 24. cxd6 Nxd6 25. Nxd6 Qxd6 26. Raf1 Rg8 27. Rxf6 Qc5+ 0-1

[Event "NED-chB sf"]
[Site "Leeuwarden"]
[Date "2002.12.08"]
[Round "2.5"]
[White "Van Bavel, Ferdi"]
[Black "Van der Berg, Wessel"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "1806"]
[BlackElo "1924"]
[PlyCount "61"]
[EventDate "2002.11.30"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "CBM 091 Extra"]
[Source "ChessBase"]
[SourceDate "2003.01.09"]
[SourceVersion "1"]
[SourceVersionDate "2003.01.09"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 c5 3. Bb2 Nc6 4. e3 e6 5. Bb5 Nf6 6. Ne5 Bd7 7. Bxc6 bxc6 8. 0-0 Be7 9. f4 0-0 10. d3 Ne8 11. Nd2 Rb8 12. Qg4 f5 13. Qe2 Qc7 14. Rac1 Bf6 15. Ba1 Bc8 16. c4 Be7 17. Rf3 Nf6 18. Rg3 a5 19. h4 a4 20. h5 axb3 21. axb3 Ra8 22. h6 g6 23. Ndf3 Bd6 24. Nxg6 hxg6 25. Rxg6+ Kh8 26. Bxf6+ Rxf6 27. Rxf6 Qh7 28. Ng5 Qe7 29. Rf7 Qe8 30. Qh5 Ba6 31. Qg6 1-0

[Event "NED-chB sf"]
[Site "Leeuwarden"]
[Date "2002.12.08"]
[Round "2.4"]
[White "Van der Berg, Wessel"]
[Black "Van Bavel, Ferdi"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "1924"]
[BlackElo "1806"]
[PlyCount "44"]
[EventDate "2002.11.30"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "CBM 091 Extra"]
[Source "ChessBase"]
[SourceDate "2003.01.09"]
[SourceVersion "1"]
[SourceVersionDate "2003.01.09"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. Nc3 c5 6. e3 0-0 7. Be2 b6 8. 0-0 Bxc3 9. Bxc3 Bb7 10. b3 d6 11. Nd2 e5 12. d5 Nbd7 13. e4 g6 14. Bd3 Ne8 15. Qg4 Ng7 16. Nf3 f5 17. Qh4 Qxh4 18. Nxh4 fxe4 19. Bxe4 Rf4 20. f3 Rxh4 21. g3 Rxe4 22. fxe4 Nh5 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2002.08.10"]
[Round "9"]
[White "Van der Berg, Wessel"]
[Black "Tempelman, Barend"]
[Result "1/2-1/2"]
[ECO "A38"]
[PlyCount "82"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nc6 3. g3 Nf6 4. Bg2 g6 5. 0-0 Bg7 6. Nc3 0-0 7. b3 d5 8. cxd5 Nxd5 9. Bb2 Bf5 10. Nh4 Be6 11. Rb1 Nd4 12. Ne4 Rc8 13. e3 Nf5 14. Bxg7 Kxg7 15. Nxf5+ Bxf5 16. a3 Qd7 17. Rc1 b6 18. d4 cxd4 19. Qxd4+ Nf6 20. Qb2 Bxe4 21. Bxe4 Kg8 22. Bg2 Rxc1 23. Rxc1 Rc8 24. Bf3 Rxc1+ 25. Qxc1 Qf5 26. Kg2 Qc5 27. Qxc5 bxc5 28. Kf1 Nd7 29. Ke2 e5 30. Kd3 Nb6 31. Bc6 a5 32. f4 exf4 33. gxf4 f5 34. e4 Kf7 35. e5 h6 36. h4 Ke6 37. Bb5 Ke7 38. Bc4 Nc8 39. a4 Nb6 40. Ke3 Nxc4+ 41. bxc4 h5 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2002.08.09"]
[Round "7"]
[White "Blayvas, Jan"]
[Black "Van der Berg, Wessel"]
[Result "1-0"]
[ECO "B08"]
[WhiteElo "2113"]
[PlyCount "53"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. Nf3 0-0 6. 0-0 Nbd7 7. h3 e5 8. Be3 c6 9. a3 Qc7 10. Qd2 Re8 11. d5 Nb6 12. Rac1 Rd8 13. Rfd1 Ne8 14. b4 f5 15. Bg5 Nf6 16. dxc6 bxc6 17. Nxe5 fxe4 18. b5 Bb7 19. Nxc6 Bxc6 20. bxc6 d5 21. Bb5 a6 22. Bf4 Qe7 23. c7 Rdc8 24. Bc6 Ra7 25. Nxd5 Nbxd5 26. Bxd5+ Kh8 27. Qe3 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2002.08.09"]
[Round "8"]
[White "Holland, Remco"]
[Black "Van der Berg, Wessel"]
[Result "1/2-1/2"]
[ECO "C01"]
[PlyCount "64"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 c6 5. c3 Bd6 6. Nf3 Nf6 7. Be3 Bg4 8. Nbd2 Nbd7 9. Qc2 Qc7 10. 0-0-0 0-0-0 11. Rde1 h6 12. Ne5 Bxe5 13. dxe5 Nxe5 14. Bf5+ Bxf5 15. Qxf5+ Ned7 16. Bf4 Qa5 17. Nc4 Qxa2 18. Nd6+ Kb8 19. Nxf7+ Ka8 20. Nxh8 Rxh8 21. Be3 Qa1+ 22. Kc2 Qa4+ 23. Kb1 Nb6 24. Bxb6 axb6 25. f3 d4 26. Qf4 c5 27. Re5 Qb3 28. cxd4 Qd3+ 29. Ka1 Qa6+ 30. Kb1 Qd3+ 31. Ka1 Qa6+ 32. Kb1 Qd3+ 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2002.08.08"]
[Round "6"]
[White "Van der Berg, Wessel"]
[Black "Stevens, Frank"]
[Result "1/2-1/2"]
[ECO "B87"]
[PlyCount "37"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3 Be7 8. Bc4 0-0 9. Bb3 b5 10. Qd2 Qc7 11. Nce2 e5 12. Nf5 Bxf5 13. exf5 d5 14. Bxd5 Rd8 15. Bxa8 Rxd2 16. Bxd2 Nbd7 17. 0-0-0 Qc4 18. Nc3 Nb6 19. Be4 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2002.08.07"]
[Round "4"]
[White "Van Landeghem, Peter"]
[Black "Van der Berg, Wessel"]
[Result "1-0"]
[ECO "C17"]
[PlyCount "99"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. f4 c5 6. Bd2 Bd7 7. Nf3 Qb6 8. a3 cxd4 9. axb4 dxc3 10. Bxc3 Qe3+ 11. Be2 Qxf4 12. Bd2 Qg4 13. 0-0 f5 14. c3 Qg6 15. Be3 a6 16. b5 0-0 17. Ra3 Qe8 18. Bc5 Qd8 19. Qd4 Re8 20. Rfa1 h6 21. b4 Ng6 22. Bd6 Nh8 23. bxa6 Nxa6 24. b5 Nc7 25. Rxa8 Nxa8 26. Ra7 Qc8 27. b6 Nf7 28. Bc5 Qc6 29. Qe3 f4 30. Qf2 Ng5 31. Nxg5 hxg5 32. Bd4 g6 33. Ra5 Kg7 34. Bb5 Qc8 35. Rxa8 Qxa8 36. Bxd7 Re7 37. Bb5 Rf7 38. h3 Qh8 39. Qf3 Qf8 40. Bd3 Kh6 41. Qg4 Rf5 42. h4 Qf7 43. Bxf5 Qxf5 44. hxg5+ Kg7 45. Qxf5 gxf5 46. Kf2 Kg6 47. Kf3 Kxg5 48. Bc5 Kg6 49. Kxf4 Kh5 50. Kg3 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2002.08.07"]
[Round "5"]
[White "Van der Berg, Wessel"]
[Black "Thissen, Timon"]
[Result "1-0"]
[ECO "C62"]
[PlyCount "81"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 exd4 5. Nxd4 Bd7 6. 0-0 g6 7. Be3 Bg7 8. Nc3 Nge7 9. Qd2 0-0 10. a4 Nxd4 11. Bxd4 Nc6 12. Bxg7 Kxg7 13. Nd5 Ne5 14. f4 Bxb5 15. axb5 Nd7 16. Qc3+ f6 17. Nxc7 Rc8 18. Ne6+ Kg8 19. Nxd8 Rxc3 20. bxc3 Rxd8 21. Rxa7 Nc5 22. Rfa1 Kf7 23. c4 Ke6 24. Re1 Rd7 25. Kf2 f5 26. exf5+ Kxf5 27. Kf3 Ne6 28. g4+ Kf6 29. Ke4 Re7 30. Kf3 Nd4+ 31. Kf2 Rc7 32. Re4 Ne6 33. Ra8 g5 34. f5 Nf4 35. Rd8 d5 36. Rd6+ Kf7 37. Rd4 Re7 38. Rxf4 gxf4 39. Rxd5 Rc7 40. c5 Ke7 41. Kf3 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2002.08.06"]
[Round "2"]
[White "Boonstra, Jasper"]
[Black "Van der Berg, Wessel"]
[Result "1-0"]
[ECO "B52"]
[PlyCount "79"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. 0-0 Nc6 6. c3 Nf6 7. Re1 g6 8. d4 cxd4 9. cxd4 Bg7 10. Nc3 0-0 11. Be3 a6 12. a4 Na5 13. e5 Ng4 14. Bf4 dxe5 15. dxe5 Qf5 16. Bg3 Rfd8 17. Qe2 e6 18. h3 Nh6 19. Bh4 Rd3 20. Ne4 Rxf3 21. Qxf3 Qxf3 22. gxf3 Nf5 23. Bf6 Nd4 24. Red1 Nxf3+ 25. Kg2 Nxe5 26. Bxg7 Kxg7 27. Rac1 Nec6 28. Nc5 Kf6 29. Nxb7 Rb8 30. Nxa5 Nxa5 31. Rd6 Nb3 32. Rcc6 Na5 33. Rxa6 Nc4 34. Rdc6 Nxb2 35. a5 Nd3 36. Rab6 Ra8 37. a6 Nf4+ 38. Kf1 Nd5 39. Rb7 Ne7 40. Rcc7 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2002.08.06"]
[Round "3"]
[White "Van der Berg, Wessel"]
[Black "Van Zutphen, Amy"]
[Result "1-0"]
[ECO "C78"]
[PlyCount "89"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Bc5 7. Nxe5 Nxe5 8. d4 Bxd4 9. Qxd4 Nc6 10. Qd3 d6 11. c3 h6 12. Bf4 0-0 13. Nd2 Ne5 14. Qe2 Re8 15. f3 Bb7 16. a4 Qd7 17. Rfd1 Ng6 18. Bg3 c6 19. Qf2 Qe7 20. Nf1 Rad8 21. Ne3 d5 22. Nf5 Qd7 23. Nd6 Re6 24. Nxb7 Qxb7 25. exd5 Nxd5 26. a5 Rde8 27. Re1 Rxe1+ 28. Rxe1 Rxe1+ 29. Qxe1 Qe7 30. Qxe7 Ndxe7 31. Kf2 c5 32. c4 b4 33. Ba4 Nf5 34. Bc7 Kf8 35. Bb5 Nd4 36. Bd6+ Ne7 37. Bxa6 Nb3 38. Bb5 Nxa5 39. Bxc5 b3 40. Ke3 f6 41. Bb4 Nb7 42. Bc6 Nd8 43. Bd5 Ke8 44. Bxe7 Kxe7 45. Kd3 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2002.08.05"]
[Round "1"]
[White "Van der Berg, Wessel"]
[Black "Tan, Kevin"]
[Result "0-1"]
[ECO "B70"]
[BlackElo "2221"]
[PlyCount "34"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bg5 Bg7 7. Qd2 Nc6 8. f3 0-0 9. Bc4 Nxe4 10. fxe4 Nxd4 11. Nd5 Re8 12. h4 Be6 13. 0-0-0 Rc8 14. b3 b5 15. Bd3 Bxd5 16. exd5 Qc7 17. h5 Qc5 0-1

[Event "Groningen Harmonie op-B"]
[Site "Groningen"]
[Date "2002.??.??"]
[Round "4.4"]
[White "Bontjer, Bernard"]
[Black "Van der Berg, Wessel"]
[Result "1-0"]
[ECO "D48"]
[WhiteElo "1773"]
[BlackElo "1768"]
[PlyCount "65"]
[EventDate "2002.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. a3 c5 10. 0-0 Bb7 11. Ne5 cxd4 12. exd4 Be7 13. Bf4 0-0 14. Rc1 Rc8 15. Qe2 Nb6 16. Rfd1 Nbd5 17. Nxd5 Qxd5 18. Nf3 Nh5 19. Be3 Bd6 20. b4 Nf4 21. Bxf4 Bxf4 22. Rc5 Qb3 23. Qc2 Qxa3 24. Bxh7+ Kh8 25. Be4 Bxe4 26. Qxe4 Bh6 27. Ne5 Kg8 28. Rxc8 Rxc8 29. Nxf7 Kxf7 30. Qb7+ Kf6 31. Qxc8 Bd2 32. Qc6 Bxb4 33. d5 1-0

[Event "Groningen SO ON op B"]
[Site "Groningen"]
[Date "2001.12.27"]
[Round "5"]
[White "Hoekstra, Erik"]
[Black "Van der Berg, Wessel"]
[Result "1-0"]
[ECO "B85"]
[WhiteElo "1795"]
[BlackElo "1737"]
[PlyCount "47"]
[EventDate "2001.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e6 7. Be3 Be7 8. 0-0 0-0 9. Qe1 a6 10. f4 d5 11. e5 Ne8 12. Qg3 Bc5 13. Rad1 Nxd4 14. Bxd4 Bxd4+ 15. Rxd4 Qb6 16. Qd3 Qxb2 17. Rb1 Qa3 18. Nxd5 Qxd3 19. Ne7+ Kh8 20. Bxd3 b5 21. Be4 Nc7 22. Bxa8 Nxa8 23. Nxc8 Rxc8 24. Rbd1 1-0

[Event "Groningen SO ON op B"]
[Site "Groningen"]
[Date "2001.12.26"]
[Round "4"]
[White "Van der Berg, Wessel"]
[Black "Van den Berg, Harmen"]
[Result "1/2-1/2"]
[ECO "C00"]
[WhiteElo "1737"]
[BlackElo "1774"]
[PlyCount "143"]
[EventDate "2001.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. g3 c5 5. Bg2 Nc6 6. Ngf3 Be7 7. 0-0 0-0 8. c3 e5 9. h3 Be6 10. Ng5 Qc7 11. Nxe6 fxe6 12. Qe2 Rad8 13. h4 b5 14. Bh3 Qd6 15. Nf3 Ne8 16. Bg5 h6 17. Bxe7 Qxe7 18. exd5 exd5 19. Rfe1 Qf6 20. Bg2 Nc7 21. Rf1 c4 22. Ne1 Rfe8 23. Rd1 a6 24. Nc2 Na5 25. Ne3 d4 26. Ng4 Qe6 27. Nh2 cxd3 28. Qxd3 e4 29. Qb1 d3 30. Rfe1 Qf5 31. b3 Nd5 32. Qb2 b4 33. cxb4 Nxb4 34. Nf1 Nc2 35. Ne3 Qc5 36. Nxc2 dxc2 37. Rc1 Rd2 38. Rf1 e3 39. b4 exf2+ 40. Kh2 Rb8 41. a3 Qc7 42. Be4 Re8 43. Rxc2 Rxe4 44. Rxc7 Rxb2 45. bxa5 Re5 46. Rc8+ Kh7 47. Kg2 Rxa5 48. Rc3 Ra2 49. Rxf2 R5xa3 50. Rcc2 Rxc2 51. Rxc2 a5 52. Kh3 a4 53. h5 Kg8 54. Rc8+ Kf7 55. Rc7+ Kf6 56. Rc6+ Kf5 57. Rg6 Ra1 58. Rxg7 a3 59. Rf7+ Ke4 60. Kg4 Kd3 61. Rd7+ Kc3 62. Rc7+ Kb2 63. Rb7+ Ka2 64. Rb6 Rb1 65. Rxh6 Rb4+ 66. Kf5 Kb3 67. Ra6 Ra4 68. Rb6+ Kc2 69. Rc6+ Kd2 70. Rb6 Kc2 71. Rc6+ Kd2 72. Rb6 1/2-1/2

[Event "NED-chB sf"]
[Site "Leeuwarden"]
[Date "2001.12.09"]
[Round "2.2"]
[White "Hibma, Jan"]
[Black "Van der Berg, Wessel"]
[Result "1-0"]
[ECO "D41"]
[WhiteElo "1948"]
[BlackElo "1737"]
[PlyCount "51"]
[EventDate "2001.11.17"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Be7 7. Nf3 0-0 8. Bc4 c5 9. 0-0 Qc7 10. Qe2 Nd7 11. Be3 a6 12. a4 b6 13. Rfb1 Bb7 14. Bd3 c4 15. Bc2 Rab8 16. Bg5 Bxg5 17. Nxg5 Qf4 18. Nh3 Qh4 19. f3 g5 20. Nf2 Rfc8 21. Ng4 Ba8 22. Rb2 Kg7 23. Rab1 Bc6 24. Ne3 b5 25. d5 exd5 26. Nf5+ 1-0

[Event "NED-chB sf"]
[Site "Leeuwarden"]
[Date "2001.12.08"]
[Round "2.1"]
[White "Van der Berg, Wessel"]
[Black "Hibma, Jan"]
[Result "0-1"]
[ECO "A58"]
[WhiteElo "1737"]
[BlackElo "1948"]
[PlyCount "64"]
[EventDate "2001.11.17"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. g3 Bg7 9. Bg2 0-0 10. 0-0 Nbd7 11. Re1 Ng4 12. Qc2 Nge5 13. Nxe5 Nxe5 14. b3 Qa5 15. Bb2 Rfb8 16. h3 Nc4 17. Na4 Nxb2 18. Nxb2 Qc3 19. Qxc3 Bxc3 20. Reb1 Bxe2 21. Bf1 Bxf1 22. Kxf1 c4 23. Ke2 cxb3 24. a4 Ra5 25. Ra3 Rxd5 26. Nc4 Rd4 27. Ne3 Ba5 28. Raxb3 Rxb3 29. Rxb3 Rxa4 30. Rb8+ Kg7 31. Ra8 Ra1 32. Nc2 Rc1 0-1

[Event "NED-chB sf"]
[Site "Leeuwarden"]
[Date "2001.11.18"]
[Round "1.2"]
[White "Sparenberg, Erik"]
[Black "Van der Berg, Wessel"]
[Result "1/2-1/2"]
[ECO "B38"]
[WhiteElo "1762"]
[BlackElo "1737"]
[PlyCount "108"]
[EventDate "2001.11.17"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be3 Bg7 6. c4 Nf6 7. Nc3 0-0 8. Be2 d6 9. Qd2 Bd7 10. f4 e5 11. Ndb5 Nd4 12. Nxd4 exd4 13. Bxd4 Bc6 14. Bxf6 Bxf6 15. Nd5 Re8 16. Bd3 Bxd5 17. cxd5 Qb6 18. Kf1 Qd4 19. Re1 Rac8 20. g3 b6 21. Re2 Bg7 22. Kg2 f5 23. Rhe1 fxe4 24. Rxe4 Rxe4 25. Rxe4 Qxb2 26. Qxb2 Bxb2 27. Re7 a5 28. Kf3 Rf8 29. Kg4 Rf7 30. Re6 Rf6 31. Re2 Bc1 32. Bb5 Kf7 33. Bd7 Ba3 34. Kg5 Kg7 35. Re7+ Rf7 36. Rxf7+ Kxf7 37. Kh6 Kg8 38. h4 Bb2 39. Be6+ Kh8 40. a4 b5 41. Bd7 bxa4 42. Bxa4 Kg8 43. h5 Bg7+ 44. Kg5 gxh5 45. Kxh5 Kf7 46. Kg5 h6+ 47. Kf5 Bc3 48. Bc2 Be1 49. g4 Bc3 50. Bd1 Bf6 51. Ke4 Kg6 52. Ke3 Bc3 53. Kd3 Be1 54. Bc2 Kf6 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "6"]
[White "Bakker, Kevin"]
[Black "Van der Berg, Wessel"]
[Result "0-1"]
[ECO "C11"]
[PlyCount "73"]
[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 e6 2. Nc3 d5 3. d4 Nf6 4. e5 Nfd7 5. Nf3 c5 6. Bg5 f6 7. exf6 Nxf6 8. Bb5+ Nc6 9. Ne5 Bd7 10. Nxd7 Qxd7 11. dxc5 Bxc5 12. Bxf6 gxf6 13. Qh5+ Qf7 14. Qf3 0-0-0 15. Bxc6 bxc6 16. 0-0-0 e5 17. Qf5+ Kb7 18. Kb1 Rhg8 19. Qf3 e4 20. Qf4 Bd6 21. Qe3 Rxg2 22. h3 f5 23. Na4 Qe7 24. Qb3+ Ka8 25. Qc3 Qc7 26. Nc5 Bxc5 27. Qxc5 Qd6 28. Qe3 f4 29. Qd4 c5 30. Qd2 e3 31. Qd3 Rxf2 32. Qxh7 e2 33. Rde1 f3 34. Qh4 Rg2 35. a3 f2 36. Rxe2 Rg1+ 37. Re1 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "9"]
[White "De Jong, Jasper"]
[Black "Van der Berg, Wessel"]
[Result "0-1"]
[ECO "B80"]
[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 a6 6. Be3 e6 7. f3 Nc6 8. Qd2 Be7 9. 0-0-0 Qc7 10. g4 b5 11. h4 Bb7 12. Bh3 Nd7 13. Bg5 Bf8 14. Rhe1 Nde5 15. Qe2 b4 16. Nb1 Rc8 17. Nxc6 Bxc6 18. Bf1 Bb5 19. Qf2 Bxf1 20. Rxf1 Nxf3 21. Bf4 e5 22. Be3 Nxh4 23. Bb6 Qb7 24. Rd3 Ng6 25. Rg3 Nf4 26. Nd2 Qc6 27. Nf3 Qxe4 28. Nd4 exd4 29. Re1 Rxc2+ 30. Kb1 Re2+ 0-1

[Event "Groningen SO ON op B"]
[Site "Groningen"]
[Date "2001.??.??"]
[Round "9.4"]
[White "Dekker, Albert"]
[Black "Van der Berg, Wessel"]
[Result "1/2-1/2"]
[ECO "B00"]
[WhiteElo "1742"]
[BlackElo "1737"]
[PlyCount "36"]
[EventDate "2001.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 a6 2. d4 b5 3. c4 Bb7 4. d5 c6 5. Nf3 bxc4 6. Bxc4 Nf6 7. Qb3 Qc7 8. Nc3 cxd5 9. exd5 d6 10. 0-0 g6 11. Re1 Bg7 12. Bg5 0-0 13. Ne4 Nbd7 14. Rac1 Nxe4 15. Rxe4 Nc5 16. Bf1 Qb8 17. Rxc5 dxc5 18. Rxe7 Bc8 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "4"]
[White "Kranenburg, Leo"]
[Black "Van der Berg, Wessel"]
[Result "1-0"]
[ECO "B35"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 0-0 8. f3 a6 9. a4 Ne5 10. Bb3 e6 11. g4 d6 12. h4 Qc7 13. Qd2 Nc6 14. h5 d5 15. Nxc6 bxc6 16. Bf4 e5 17. Bh6 Be6 18. Bxg7 Kxg7 19. Qh2 Qd6 20. 0-0-0 d4 21. hxg6 fxg6 22. Qh6+ Kh8 23. Bxe6 Qxe6 24. Qxg6 dxc3 25. Rxh7+ Nxh7 26. Qxe6 cxb2+ 27. Kxb2 Rab8+ 28. Ka2 Rfe8 29. Qh6 1-0

[Event "Groningen SO ON op B"]
[Site "Groningen"]
[Date "2001.??.??"]
[Round "7.5"]
[White "Ruigendijk, Ferry"]
[Black "Van der Berg, Wessel"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "1653"]
[BlackElo "1737"]
[PlyCount "50"]
[EventDate "2001.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. f4 Nc6 3. Nf3 g6 4. Bb5 Bg7 5. Bxc6 bxc6 6. d3 d5 7. 0-0 e6 8. c4 Ne7 9. Qc2 d4 10. b3 Qc7 11. Qf2 0-0 12. Qh4 f6 13. Kh1 a5 14. g4 a4 15. Nfd2 Bd7 16. Rf2 Rfb8 17. Bb2 Ra6 18. e5 g5 19. fxg5 f5 20. gxf5 exf5 21. Rf3 Ng6 22. Qh5 Qxe5 23. Nf1 axb3 24. a3 Qe2 25. Nbd2 Nf4 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "5"]
[White "Van der Berg, Wessel"]
[Black "Hagerop van Eijs, Isabelle"]
[Result "0-1"]
[ECO "D06"]
[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. d4 d5 2. c4 Nf6 3. cxd5 Nxd5 4. e4 Nf6 5. Bd3 Nc6 6. Ne2 e6 7. 0-0 Be7 8. Nbc3 0-0 9. e5 Nd5 10. Kh1 Nxc3 11. bxc3 b6 12. Ng3 g6 13. Bh6 Re8 14. Ne4 f5 15. Nd2 Bg5 16. Bxg5 Qxg5 17. f4 Qe7 18. g4 Rf8 19. gxf5 exf5 20. d5 Nd8 21. Nf3 Nf7 22. Bc4 Kg7 23. Qd3 Bb7 24. Bb3 Rad8 25. Rad1 Rfe8 26. c4 Qc5 27. Qc3 Kg8 28. Rd3 Re7 29. Rg1 Rde8 30. Re3 Nd6 31. Nd2 c6 32. Rh3 cxd5 33. cxd5 Bxd5+ 34. Rg2 Bxb3 35. Qxb3+ Nf7 36. Nc4 Kg7 37. Qc2 Qd4 38. Qxf5 Qd1+ 0-1

[Event "Groningen SO ON op B"]
[Site "Groningen"]
[Date "2001.??.??"]
[Round "8.4"]
[White "Van der Berg, Wessel"]
[Black "Jautze, Cornelis"]
[Result "1-0"]
[ECO "D40"]
[WhiteElo "1737"]
[BlackElo "1648"]
[PlyCount "105"]
[EventDate "2001.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. c4 d5 5. Nc3 Nc6 6. Bd3 Be7 7. 0-0 0-0 8. a3 dxc4 9. Bxc4 Na5 10. Be2 cxd4 11. Nxd4 a6 12. b4 Qc7 13. Na4 Nc6 14. Bb2 b5 15. Nxc6 bxa4 16. Qxa4 Nd5 17. Nxe7+ Qxe7 18. Bd4 Bd7 19. Qb3 Rfc8 20. Bc5 Qe8 21. Bf3 Rab8 22. Rac1 Ba4 23. Qb2 f6 24. Bd4 Kh8 25. Rxc8 Rxc8 26. Rc1 Rxc1+ 27. Qxc1 Bc6 28. Qc5 h6 29. h3 e5 30. Bxd5 Bxd5 31. Qxd5 exd4 32. Qxd4 Qc6 33. Qd8+ Kh7 34. Qd3+ Kh8 35. e4 Qc1+ 36. Kh2 Qf4+ 37. Kg1 Qc1+ 38. Kh2 Qf4+ 39. Qg3 Qxe4 40. Qd6 Qc4 41. f3 Kg8 42. Qd8+ Kh7 43. Qd6 Kg8 44. Qc5 Qxc5 45. bxc5 Kf8 46. Kg3 Ke7 47. Kf4 Kd7 48. Ke4 Kc6 49. Kd4 g6 50. g4 a5 51. a4 h5 52. gxh5 gxh5 53. h4 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "3"]
[White "Van der Berg, Wessel"]
[Black "Koekoek, Arjen"]
[Result "0-1"]
[ECO "B32"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Qf6 8. Qd1 Qg6 9. Nc3 Nge7 10. Be3 d6 11. Qf3 Be6 12. Bd3 Nb4 13. Qg3 Qxg3 14. hxg3 Nxd3+ 15. cxd3 0-0 16. Ke2 f5 17. Rh2 b5 18. Rah1 h6 19. exf5 Nxf5 20. b3 d5 21. Bd2 Rac8 22. Rc1 Nd4+ 23. Ke3 b4 24. Nb1 Rxc1 25. Bxc1 Rc8 26. Bd2 Rc2 27. Rh5 Nf5+ 28. Ke2 Nxg3+ 29. Kd1 Rxd2+ 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "7"]
[White "Van der Berg, Wessel"]
[Black "Lieven, Menno"]
[Result "1-0"]
[ECO "C24"]
[PlyCount "73"]
[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 Nf6 3. Bc4 d6 4. d3 Be7 5. h3 Be6 6. Bb3 Nc6 7. c3 Qd7 8. Be3 a6 9. Bc2 d5 10. 0-0 d4 11. cxd4 exd4 12. Bf4 h6 13. Ne5 Nxe5 14. Bxe5 Nh7 15. Nd2 Rg8 16. Nf3 Bc5 17. Ba4 b5 18. Bb3 Nf8 19. a4 c6 20. axb5 cxb5 21. Rc1 Rc8 22. Bxd4 Bxd4 23. Rxc8+ Qxc8 24. Nxd4 g5 25. Bxe6 Nxe6 26. Nf5 Qd7 27. Nxh6 Rh8 28. Ng4 Qd4 29. Qb3 Nf4 30. Rd1 Kd7 31. Qxf7+ Kd8 32. Qb7 Qxb2 33. Qxa6 Nxh3+ 34. gxh3 Rxh3 35. Qd6+ Kc8 36. Ne5 b4 37. Qd7+ 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "1"]
[White "Van der Berg, Wessel"]
[Black "Muhren, Willem"]
[Result "0-1"]
[ECO "B34"]
[BlackElo "2215"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Be2 0-0 8. 0-0 d5 9. exd5 Nxd5 10. Nxd5 Qxd5 11. Bf3 Qa5 12. Nxc6 bxc6 13. Qd2 Qxd2 14. Bxd2 Rb8 15. Rab1 Bf5 16. b3 c5 17. Rfe1 e5 18. Be4 Be6 19. c3 c4 20. b4 f5 21. Bc6 Rbd8 22. Be3 Rf7 23. Rbd1 Rd3 24. Rxd3 cxd3 25. Bb5 e4 26. c4 Bc3 27. Rb1 f4 28. Bc5 d2 29. Kf1 e3 30. Ke2 Bg4+ 31. f3 Bf5 32. Rg1 Bc2 33. a4 Bb3 34. Rb1 Ba2 35. Rg1 Rb7 36. Kd3 Bxb4 37. Bxb4 a6 38. Bxa6 Rxb4 39. Bb5 Bxc4+ 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "8"]
[White "Van der Berg, Wessel"]
[Black "Severijnen, Arjon"]
[Result "1/2-1/2"]
[ECO "B44"]
[PlyCount "13"]
[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 e6 3. d4 cxd4 4. Nxd4 Nc6 5. c3 Nf6 6. Nxc6 bxc6 7. e5 1/2-1/2

[Event "Groningen SO ON op B"]
[Site "Groningen"]
[Date "2001.??.??"]
[Round "2.4"]
[White "Van der Berg, Wessel"]
[Black "Veltman, Jelmer"]
[Result "1/2-1/2"]
[ECO "B21"]
[WhiteElo "1737"]
[BlackElo "1627"]
[PlyCount "29"]
[EventDate "2001.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. f4 Nc6 3. Nf3 g6 4. Be2 Bg7 5. c3 d5 6. d3 Nf6 7. e5 Nd7 8. d4 0-0 9. Be3 cxd4 10. cxd4 Nb6 11. 0-0 Bf5 12. Nc3 Nb4 13. Ne1 Rc8 14. a3 Nc6 15. Bf3 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "2"]
[White "Wezenaar, Femke"]
[Black "Van der Berg, Wessel"]
[Result "0-1"]
[ECO "B23"]
[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 c5 2. Nc3 Nc6 3. Bc4 g6 4. f4 Bg7 5. Nf3 d6 6. 0-0 e6 7. f5 exf5 8. exf5 Bxf5 9. Qe1+ Nge7 10. Ng5 0-0 11. d3 a6 12. Nxf7 Rxf7 13. Bxf7+ Kxf7 14. g4 Bd4+ 15. Kh1 Kg7 16. gxf5 Nxf5 17. Ne4 Qd7 18. c3 Be5 19. Bf4 Re8 20. Bxe5+ Nxe5 21. Qd2 Qc6 22. Qg5 Nxd3 23. Qf6+ Kg8 24. Rad1 Qxe4+ 25. Kg1 Qg4+ 26. Kh1 Nf2+ 27. Rxf2 Qxd1+ 28. Kg2 Ne3+ 29. Kh3 Qg4# 0-1

[Event "Groningen SO ON Mini op-C"]
[Site "Groningen"]
[Date "2000.??.??"]
[Round "3"]
[White "Beck, Leonie"]
[Black "Van der Berg, Wessel"]
[Result "1/2-1/2"]
[ECO "B92"]
[PlyCount "33"]
[EventDate "2000.12.??"]
[EventType "swiss"]
[EventRounds "5"]
[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 e5 7. Nb3 Be7 8. Be2 0-0 9. 0-0 b6 10. f4 exf4 11. Bxf4 Nc6 12. Bf3 Ne5 13. Nd5 Nxd5 14. exd5 Nxf3+ 15. Qxf3 Bf6 16. c3 Qc7 17. Qd3 1/2-1/2

[Event "Groningen SO ON Mini op-C"]
[Site "Groningen"]
[Date "2000.??.??"]
[Round "1"]
[White "Dijkstra, Maarten"]
[Black "Van der Berg, Wessel"]
[Result "0-1"]
[ECO "C41"]
[PlyCount "124"]
[EventDate "2000.12.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 c5 6. Nf3 Nc6 7. h3 a6 8. a4 Be7 9. Bc4 0-0 10. 0-0 Nd7 11. Nd5 Nde5 12. Nxe5 dxe5 13. Be3 Kh8 14. Nxe7 Qxe7 15. Re1 b6 16. c3 f5 17. exf5 Bxf5 18. Qe2 Qb7 19. Bd5 Qc7 20. Rad1 Bg6 21. Bc1 Rfe8 22. Qf3 Rac8 23. h4 Bc2 24. Rd2 Bxa4 25. b3 Bb5 26. Qh5 Ne7 27. c4 Bc6 28. Be6 Rcd8 29. Rxd8 Rxd8 30. Rxe5 Ng6 31. Re1 Re8 32. Bd2 Qd6 33. Qe2 Nf8 34. Bc3 Rxe6 35. Qg4 Rxe1+ 36. Bxe1 Qe6 37. Qd1 Qe4 38. f3 Qe3+ 39. Kh1 h6 40. Bd2 Qd4 41. Qe1 b5 42. Bc3 Qf4 43. Be5 Qf7 44. Qg3 Ne6 45. f4 b4 46. Qg4 h5 47. Qg3 a5 48. Qf2 Qe7 49. f5 Nf8 50. Qg3 Nd7 51. Bb2 a4 52. bxa4 Bxa4 53. Kh2 Qf7 54. Qg5 Nf6 55. Bxf6 gxf6 56. Qh6+ Kg8 57. Qd2 Qd7 58. Qh6 Qd6+ 59. Kh1 Be8 60. Qe3 Bf7 61. Qe4 b3 62. Qa8+ Kg7 0-1

[Event "Groningen SO ON Mini op-C"]
[Site "Groningen"]
[Date "2000.??.??"]
[Round "2"]
[White "Van der Berg, Wessel"]
[Black "Jans, Johan"]
[Result "1-0"]
[ECO "E70"]
[PlyCount "121"]
[EventDate "2000.12.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be3 0-0 6. Bd3 Ng4 7. Qd2 Nxe3 8. Qxe3 c5 9. Nge2 Nc6 10. d5 Nd4 11. 0-0 f5 12. Rab1 e5 13. dxe6 Bxe6 14. Nf4 Bc8 15. Ncd5 Be5 16. b4 b6 17. exf5 Nxf5 18. Qe4 Bd7 19. b5 Re8 20. Qf3 Nh4 21. Qd1 Rf8 22. g3 Qg5 23. Qc1 Bxf4 24. Nxf4 Rae8 25. Kh1 Nf3 26. Be2 Nd4 27. Re1 Bf5 28. Bd3 Nf3 29. Rxe8 Rxe8 30. Qc2 Ne1 31. Qd1 Nxd3 32. Nxd3 Be4+ 33. Kg1 Qf5 34. Qe2 Rf8 35. Rd1 Bf3 36. Qd2 Bxd1 37. Qxd1 Qf6 38. Nf4 Qd8 39. Ne6 Qf6 40. Nxf8 Qxf8 41. Qd5+ Kg7 42. Kg2 Qf7 43. Qd3 Qb7+ 44. f3 Qe7 45. Kf2 Qe5 46. f4 Qb2+ 47. Qe2 Qd4+ 48. Kg2 d5 49. Qe7+ Kh6 50. Qf8+ Kh5 51. Qe7 Qe4+ 52. Qxe4 dxe4 53. h3 Kh6 54. Kf2 Kg7 55. Ke3 Kf6 56. Kxe4 h6 57. Kd5 Kf5 58. a3 h5 59. Kc6 h4 60. gxh4 Kxf4 61. Kb7 1-0

