[Event "Olomouc op"]
[Site "Olomouc"]
[Date "2003.08.07"]
[Round "9"]
[White "Bernasek, Jan"]
[Black "Helvensteijn, Dennis"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "2402"]
[BlackElo "2248"]
[PlyCount "63"]
[EventDate "2003.07.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. Nf3 Bg4 4. cxd5 Bxf3 5. dxc6 Bxc6 6. Nc3 e6 7. Bf4 Nf6 8. e3 Nd5 9. Bg3 h5 10. h3 Bd6 11. Bxd6 Qxd6 12. Qb3 0-0-0 13. Nb5 Bxb5 14. Bxb5 e5 15. dxe5 Qxe5 16. Be2 g5 17. h4 g4 18. g3 Nf6 19. Bd3 Qa5+ 20. Ke2 Rd6 21. Rhd1 Rhd8 22. Rac1 Qd5 23. Qxd5 Rxd5 24. Bc4 R5d7 25. Rxd7 Rxd7 26. Rd1 Re7 27. Rd4 Ne4 28. Rd5 Re6 29. Rf5 Rf6 30. Rxf6 Nxf6 31. Bxf7 Kd7 32. f4 1-0

[Event "Olomouc op"]
[Site "Olomouc"]
[Date "2003.08.06"]
[Round "8"]
[White "Helvensteijn, Dennis"]
[Black "Klima, Lukas"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2248"]
[BlackElo "2425"]
[PlyCount "141"]
[EventDate "2003.07.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 e6 6. Nc3 Nxc3 7. bxc3 Qc7 8. Bd2 Be7 9. f4 b6 10. Nf3 Bb7 11. Bd3 Nc6 12. Qe2 g6 13. 0-0 d5 14. exd6 Qxd6 15. Ne5 0-0 16. Rfd1 Bf6 17. Be3 Ne7 18. c4 Rad8 19. Rac1 Nf5 20. Bxf5 exf5 21. c5 Qe6 22. Bf2 Bd5 23. Rd2 Rc8 24. Nd3 Rfd8 25. Qxe6 Bxe6 26. cxb6 axb6 27. Rxc8 Rxc8 28. Be3 Bd8 29. Nb4 Be7 30. Rb2 Bc4 31. a4 Bd6 32. d5 Ra8 33. Nc2 Bxd5 34. Rxb6 Bc7 35. Rb4 Ba5 36. Rd4 Be4 37. Na3 Rc8 38. Rc4 Rd8 39. Rd4 Re8 40. Nc4 Bc3 41. Rd6 Ra8 42. a5 Bxa5 43. Nxa5 Rxa5 44. Bd4 f6 45. Rd8+ Kf7 46. Rd7+ Ke6 47. Rxh7 Ra4 48. Bc3 Rc4 49. Be1 Rc1 50. Kf1 Bxg2+ 51. Kxg2 Rxe1 52. Rg7 Kd5 53. Rxg6 Ke4 54. Rxf6 Kxf4 55. Ra6 Re2+ 56. Kg1 Rb2 57. Ra1 Rb3 58. Kg2 Rb2+ 59. Kg1 Ke3 60. Ra3+ Ke2 61. Ra4 Rb5 62. Ra2+ Kf3 63. Ra3+ Kg4 64. Ra7 f4 65. Ra2 Re5 66. Kf2 Rh5 67. Kg1 Rh3 68. Kg2 Rb3 69. Rc2 Kf5 70. Ra2 Ke4 71. Re2+ 1/2-1/2

[Event "Olomouc op"]
[Site "Olomouc"]
[Date "2003.08.05"]
[Round "7"]
[White "Kislov, Mikhail"]
[Black "Helvensteijn, Dennis"]
[Result "0-1"]
[ECO "B16"]
[WhiteElo "2368"]
[BlackElo "2248"]
[PlyCount "67"]
[EventDate "2003.07.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. c3 Nd7 7. Nf3 Nb6 8. g3 Bg4 9. Bg2 Qd7 10. a4 Nd5 11. c4 Qe6+ 12. Qe2 Nb4 13. Be3 Bf5 14. d5 Qd7 15. Rd1 cxd5 16. 0-0 Bc2 17. Rxd5 Nxd5 18. cxd5 Bb3 19. Nd4 Qxa4 20. Rc1 Rd8 21. Qd3 Bxd5 22. Bxd5 Rxd5 23. Rc8+ Kd7 24. Qc3 Qa5 25. b4 Qb6 26. Nf5 Rd1+ 27. Kg2 Qb5 28. g4 Rg8 29. Rc7+ Ke6 30. f3 Qd5 31. Rc8 Rxg4+ 32. Ng3 Rc4 33. Bc5 Qd2+ 34. Qxd2 0-1

[Event "Olomouc op"]
[Site "Olomouc"]
[Date "2003.08.01"]
[Round "3"]
[White "Laznicka, Viktor"]
[Black "Helvensteijn, Dennis"]
[Result "1-0"]
[ECO "B16"]
[WhiteElo "2446"]
[BlackElo "2248"]
[PlyCount "45"]
[EventDate "2003.07.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. Nf3 Nd7 7. Be2 Nb6 8. c4 Bg4 9. b3 Qd7 10. Be3 Rg8 11. a4 Nc8 12. 0-0 Nd6 13. d5 Nf5 14. Bf4 e5 15. Nxe5 fxe5 16. Bxg4 exf4 17. Re1+ Kd8 18. dxc6 Qxd1 19. Raxd1+ Bd6 20. Bf3 Rg5 21. b4 bxc6 22. c5 Rb8 23. cxd6 1-0

[Event "Naujac op 06th"]
[Site "Naujac"]
[Date "2003.07.03"]
[Round "6"]
[White "Helvensteijn, Dennis"]
[Black "Foisor, Cristina Adela B"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2248"]
[BlackElo "2395"]
[PlyCount "34"]
[EventDate "2003.06.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 g6 2. d4 d6 3. Bd3 Bg7 4. c3 e5 5. Ne2 Nf6 6. 0-0 0-0 7. h3 b6 8. f4 Nbd7 9. Ng3 Bb7 10. Be3 Qe7 11. Nd2 exd4 12. Bxd4 Nc5 13. Bxc5 dxc5 14. Qc2 Rad8 15. e5 Nd5 16. Rf3 Nxf4 17. Be4 Bxe4 0-1

[Event "Naujac op 06th"]
[Site "Naujac"]
[Date "2003.07.01"]
[Round "4"]
[White "Wohl, Aleksandar H"]
[Black "Helvensteijn, Dennis"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "2401"]
[BlackElo "2248"]
[PlyCount "71"]
[EventDate "2003.06.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. c4 Nc6 2. Nc3 Nf6 3. Nf3 d5 4. d4 dxc4 5. e4 Bg4 6. Be3 e6 7. Bxc4 Bb4 8. Qd3 Qe7 9. Bb5 Nd7 10. a3 Ba5 11. b4 Bb6 12. d5 exd5 13. Nxd5 Qd8 14. Qc3 0-0 15. Rd1 Qe8 16. Bxc6 bxc6 17. Qxc6 Qxe4 18. Ng5 Qe5 19. Nxb6 Nxb6 20. Rd4 Bh5 21. 0-0 Rad8 22. Rh4 Bg6 23. Nf3 Qd6 24. Qc1 Rfe8 25. Rd4 Qe7 26. b5 Be4 27. Rxd8 Rxd8 28. Nd4 Qe5 29. Rd1 Qd5 30. f3 Bg6 31. Qxc7 Nc4 32. Bf2 Nxa3 33. Rc1 h6 34. Qa5 Nc2 35. Rxc2 Bxc2 36. Nxc2 1-0

[Event "Naujac op 06th"]
[Site "Naujac"]
[Date "2003.06.30"]
[Round "3"]
[White "Helvensteijn, Dennis"]
[Black "Petitjean, Pierre"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2248"]
[BlackElo "2051"]
[PlyCount "51"]
[EventDate "2003.06.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. c3 c6 4. Bd3 d5 5. exd5 cxd5 6. Nf3 Bg4 7. 0-0 Nc6 8. h3 Bxf3 9. Qxf3 Nf6 10. Qe2 Qd6 11. f4 Rc8 12. b4 Nh5 13. Qf2 Nxb4 14. cxb4 Rxc1 15. Rxc1 Qxb4 16. Rd1 Nxf4 17. Bb5+ Qxb5 18. Qxf4 Qb2 19. Nc3 Qxc3 20. Rac1 Qb2 21. Qb8+ Kd7 22. Qc7+ Ke6 23. Re1+ Kf5 24. Rf1+ Ke4 25. Qf4+ Kd3 26. Rfd1+ 1-0

[Event "Lost Boys op"]
[Site "Amsterdam"]
[Date "2002.08.03"]
[Round "9"]
[White "Helvensteijn, Dennis"]
[Black "Span, Paul"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2242"]
[BlackElo "2294"]
[PlyCount "151"]
[EventDate "2002.07.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Bg4 6. Be2 e6 7. h3 Bh5 8. 0-0 Nc6 9. Be3 cxd4 10. cxd4 Be7 11. Nc3 Qd6 12. a3 0-0 13. Qd2 Rac8 14. b4 Rfd8 15. Rfd1 Bg6 16. Bf4 Qd7 17. Qe3 Nd5 18. Nxd5 Qxd5 19. Rac1 Qe4 20. Kf1 Bf6 21. Ne5 Qxe3 22. fxe3 Bxe5 23. dxe5 Be4 24. Bf3 Bxf3 25. gxf3 Rxd1+ 26. Rxd1 Rd8 27. Rxd8+ Nxd8 28. Ke2 b5 29. Kd3 Nc6 30. Bg3 Kf8 31. f4 Ke8 32. Be1 Kd7 33. Bc3 Ne7 34. Be1 Nd5 35. Bd2 Nb6 36. Bc1 Kc6 37. Kd4 Nc8 38. Bd2 Ne7 39. Be1 Kb6 40. Kd3 Nc6 41. Bc3 Kc7 42. Ke4 a6 43. Be1 Ne7 44. Kd4 Kc6 45. Bf2 Ng6 46. Be1 f6 47. exf6 gxf6 48. Ke4 f5+ 49. Kd4 Kd6 50. Bg3 Ne7 51. e4 Nc6+ 52. Kd3 a5 53. bxa5 Nxa5 54. Be1 Nc6 55. Bb4+ Kd7 56. Bc5 Ke8 57. Bf2 Kf7 58. Bg3 Kg6 59. Ke3 Kf7 60. Be1 Kg6 61. Bg3 Na5 62. exf5+ Kxf5 63. Kd4 Nb7 64. Kc3 Ke4 65. Kb4 Kf3 66. Be1 Kxf4 67. Kxb5 Nd6+ 68. Kc6 Nc4 69. a4 e5 70. Kb5 Nd6+ 71. Kc6 Nc4 72. Kc5 Nb2 73. a5 Nd3+ 74. Kd5 Nxe1 75. a6 Nc2 76. a7 1-0

[Event "Lost Boys op"]
[Site "Amsterdam"]
[Date "2002.08.02"]
[Round "8"]
[White "De Roda Husman, Juan"]
[Black "Helvensteijn, Dennis"]
[Result "1/2-1/2"]
[ECO "B16"]
[WhiteElo "2281"]
[BlackElo "2242"]
[PlyCount "93"]
[EventDate "2002.07.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. c3 Nd7 7. Nf3 Nb6 8. g3 Bg4 9. Bg2 Qd7 10. h3 Be6 11. b3 0-0-0 12. c4 Bf5 13. Be3 e5 14. 0-0 e4 15. Nh4 Bxh3 16. Bxe4 Kb8 17. Bg2 Rg8 18. a4 Nc8 19. Qh5 Bd6 20. d5 Ne7 21. dxc6 Nxc6 22. c5 Be5 23. Rad1 Qe6 24. Rxd8+ Rxd8 25. Bxh3 Qxh3 26. Qf5 Qxf5 27. Nxf5 Rd3 28. Rb1 a5 29. Kf1 Nb4 30. Ke2 Rd5 31. Rh1 Nc2 32. Rxh7 Nxe3 33. Nxe3 Rxc5 34. Nc4 b5 35. Nxe5 Rxe5+ 36. Kd3 Rd5+ 37. Kc3 bxa4 38. bxa4 Rc5+ 39. Kd4 Rc2 40. Rxf7 Rxf2 41. Kc5 Rf3 42. Kb6 Rb3+ 43. Kxa5 Rxg3 44. Rxf6 Rg7 45. Kb5 Rb7+ 46. Kc5 Ka7 47. a5 1/2-1/2

[Event "Lost Boys op"]
[Site "Amsterdam"]
[Date "2002.08.01"]
[Round "7"]
[White "O'Cinneide, Mel"]
[Black "Helvensteijn, Dennis"]
[Result "1/2-1/2"]
[ECO "A22"]
[WhiteElo "2251"]
[BlackElo "2242"]
[PlyCount "114"]
[EventDate "2002.07.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. c4 Nc6 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nb6 6. d3 e5 7. Be3 Be7 8. Nf3 Be6 9. a3 a5 10. Rc1 f5 11. Na4 Nxa4 12. Qxa4 0-0 13. Rxc6 bxc6 14. Nxe5 Bf6 15. Qxc6 Qd6 16. Qxd6 cxd6 17. Bxa8 Rxa8 18. Nc4 d5 19. Nb6 Rb8 20. Bc5 Bd8 21. Na4 Bd7 22. Nc3 Rxb2 23. 0-0 Rc2 24. Bd4 Bc6 25. Rb1 Kf7 26. Kf1 a4 27. Nb5 Be7 28. f4 h6 29. Be5 Bd7 30. Nd4 Ra2 31. Rb7 Ke8 32. Bxg7 Bxa3 33. Nb5 Bc5 34. Bd4 Rc2 35. Bxc5 Rxc5 36. Nd6+ Kd8 37. Ra7 Rc7 38. Nf7+ Kc8 39. Ra5 Kb7 40. Rxd5 Kb6 41. Ne5 Bb5 42. Nc4+ Bxc4 43. dxc4 Rxc4 44. Kf2 a3 45. Rd1 Kc5 46. Kf3 Rc3+ 47. e3 h5 48. h3 Kc4 49. g4 hxg4+ 50. hxg4 fxg4+ 51. Kxg4 Rxe3 52. Kf5 Rd3 53. Re1 a2 54. Kg6 Rd6+ 55. Kg7 Rb6 56. Ra1 Ra6 57. f5 Ra7+ 1/2-1/2

[Event "Lost Boys op"]
[Site "Amsterdam"]
[Date "2002.07.31"]
[Round "6"]
[White "Helvensteijn, Dennis"]
[Black "Wunnink, Michael"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2242"]
[BlackElo "2255"]
[PlyCount "72"]
[EventDate "2002.07.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 d6 6. f4 dxe5 7. fxe5 Nc6 8. Nc3 Bf5 9. a3 e6 10. Nf3 Be7 11. Bc4 Nb6 12. Ba2 Bg4 13. 0-0 0-0 14. Be3 Qd7 15. Qe1 Bxf3 16. gxf3 Kh8 17. Rd1 Bd8 18. d5 Nxd5 19. Nxd5 exd5 20. Rxd5 Qe6 21. Bc5 Bb6 22. Bxb6 axb6 23. Bb3 Ra5 24. Qe4 Rxd5 25. Bxd5 Qxe5 26. Qxe5 Nxe5 27. Bxb7 g5 28. f4 gxf4 29. Rxf4 Nd3 30. Rf6 Nxb2 31. Rxb6 Nc4 32. Ra6 Rb8 33. Bd5 Rb1+ 34. Kf2 Rb2+ 35. Kg3 Rb3+ 36. Kf4 Rxa3 1/2-1/2

[Event "Naujac op 05th"]
[Site "Naujac"]
[Date "2002.07.30"]
[Round "1"]
[White "Helvensteijn, Dennis"]
[Black "Bert, Jerome"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2242"]
[BlackElo "2086"]
[PlyCount "63"]
[EventDate "2002.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. e4 c5 2. c3 g6 3. d4 cxd4 4. cxd4 d5 5. e5 Nc6 6. Nc3 Bg7 7. Nge2 Nh6 8. h4 a6 9. f3 b5 10. a3 Ra7 11. h5 Na5 12. g4 f5 13. hxg6 hxg6 14. Nf4 Nf7 15. Rg1 g5 16. e6 Nd6 17. Ng6 Rh6 18. gxf5 Nxf5 19. Rxg5 Nxd4 20. Rxd5 Qxd5 21. Nxd5 Rxg6 22. Nf4 Rg5 23. Be3 Nab3 24. Rc1 Bb7 25. Kf2 Be5 26. Rc3 Ra8 27. Rxb3 Bxf3 28. Qd3 Nxb3 29. Kxf3 Na5 30. Ng6 Rg3+ 31. Kf2 Rd8 32. Qf5 1-0

[Event "Lost Boys op"]
[Site "Amsterdam"]
[Date "2002.07.30"]
[Round "5"]
[White "Willemze, Thomas"]
[Black "Helvensteijn, Dennis"]
[Result "1/2-1/2"]
[ECO "A09"]
[WhiteElo "2253"]
[BlackElo "2242"]
[PlyCount "88"]
[EventDate "2002.07.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 Nc6 3. cxd5 Qxd5 4. Nc3 Qh5 5. e3 Bg4 6. Be2 e5 7. 0-0 0-0-0 8. h3 Bd7 9. d4 Qg6 10. Bd3 f5 11. d5 e4 12. dxc6 Bxc6 13. Ne5 Qe8 14. Nxc6 Rxd3 15. Nxa7+ Kb8 16. Qe1 Kxa7 17. a4 Qe5 18. Nb5+ Kb8 19. Bd2 Bd6 20. Nxd6 Qxd6 21. Bb4 c5 22. Bc3 Nf6 23. b4 cxb4 24. Bxb4 Qa6 25. Bc5 g5 26. Rb1 Nd5 27. Rb5 Nc7 28. Bd4 Rxd4 29. exd4 Nxb5 30. axb5 Qxb5 31. Qc3 Rc8 32. Qa3 Qa6 33. Qg3+ f4 34. Qxg5 Qd6 35. Ra1 Rc6 36. Qg8+ Rc8 37. Qa2 Rc6 38. Qa8+ Kc7 39. Rb1 Rb6 40. Rc1+ Rc6 41. Rxc6+ Kxc6 42. Qe8+ Kd5 43. Qb5+ Kxd4 44. Qxb7 h6 1/2-1/2

[Event "Lost Boys op"]
[Site "Amsterdam"]
[Date "2002.07.29"]
[Round "4"]
[White "Helvensteijn, Dennis"]
[Black "Prakken, Gerrit"]
[Result "0-1"]
[ECO "C56"]
[WhiteElo "2242"]
[BlackElo "2290"]
[PlyCount "70"]
[EventDate "2002.07.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qh5 9. Nxe4 Be6 10. Bg5 h6 11. Bf6 Qg6 12. Nh4 Qg4 13. Qd3 a6 14. h3 Qh5 15. f4 Qb5 16. Qf3 gxf6 17. f5 0-0-0 18. fxe6 f5 19. Nf2 fxe6 20. Ng6 Rg8 21. Rxe6 Bd6 22. Nd3 f4 23. Ngxf4 Qg5 24. Nd5 Rdf8 25. Rf6 Ne5 26. Nxe5 Qxe5 27. Rf1 Qh2+ 28. Kf2 Re8 29. Rxd6 Qxd6 30. Kg1 Ref8 31. Nf6 Kb8 32. Nxg8 Rxf3 33. Rxf3 b6 34. Rf6 Qg3 35. Nxh6 Qe1+ 0-1

[Event "Lost Boys op"]
[Site "Amsterdam"]
[Date "2002.07.28"]
[Round "3"]
[White "Vidarsson, Jon Gardar"]
[Black "Helvensteijn, Dennis"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2378"]
[BlackElo "2242"]
[PlyCount "65"]
[EventDate "2002.07.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 c5 4. dxc5 e6 5. Be3 Nd7 6. Bb5 Qc7 7. Nf3 Bxc5 8. 0-0 Bxe3 9. fxe3 Nh6 10. Qd3 a6 11. Qa3 Ng4 12. Nbd2 Rb8 13. Bxd7+ Bxd7 14. c4 Bc6 15. cxd5 exd5 16. Nd4 Qxe5 17. Rf4 Nh6 18. Nxc6 bxc6 19. Qc5 Qe6 20. e4 Rb5 21. exd5 Rxc5 22. dxe6 fxe6 23. Re1 Kd7 24. Ne4 Rc2 25. b4 Re8 26. Nc5+ Kc8 27. Rxe6 Rxe6 28. Nxe6 g6 29. Rh4 Nf5 30. Rxh7 Ne3 31. h4 Rxg2+ 32. Kh1 Rg4 33. a3 1-0

[Event "Lost Boys op"]
[Site "Amsterdam"]
[Date "2002.07.27"]
[Round "2"]
[White "Helvensteijn, Dennis"]
[Black "Jens, Jelmer"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2242"]
[BlackElo "2369"]
[PlyCount "77"]
[EventDate "2002.07.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 e6 6. Bd3 Nc6 7. 0-0 cxd4 8. cxd4 Be7 9. Nc3 Qd6 10. Qe2 0-0 11. Rd1 Nb4 12. Bb1 Nbd5 13. Bg5 b6 14. Ne5 Bb7 15. Qd3 g6 16. Qh3 Rac8 17. Ne2 Ba6 18. Qf3 Qb4 19. Bd3 Bxd3 20. Nxd3 Qa4 21. Ne5 Rc2 22. Nf4 Rxb2 23. Nxd5 Nxd5 24. Bh6 Bf6 25. Bxf8 Kxf8 26. a3 Rb3 27. Rd3 Rxd3 28. Qxd3 Nf4 29. Qe4 Qxd4 30. Qxd4 Ne2+ 31. Kf1 Nxd4 32. Nd7+ Ke7 33. Nxf6 Kxf6 34. Rc1 a5 35. a4 b5 36. axb5 Nxb5 37. Rc5 Nd4 38. Rxa5 h5 39. Ra7 1/2-1/2

[Event "Lost Boys op"]
[Site "Amsterdam"]
[Date "2002.07.26"]
[Round "1"]
[White "Hendriks, Willy"]
[Black "Helvensteijn, Dennis"]
[Result "1/2-1/2"]
[ECO "B14"]
[WhiteElo "2410"]
[BlackElo "2242"]
[PlyCount "90"]
[EventDate "2002.07.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. Qb3 Bg7 7. cxd5 0-0 8. Be2 Nbd7 9. Bf3 Nb6 10. Bf4 a5 11. Nge2 a4 12. Qb5 Bg4 13. Bxg4 Nxg4 14. 0-0 Nf6 15. Bg3 Ra6 16. Nf4 a3 17. b3 g5 18. Nd3 Nfxd5 19. Rac1 Bxd4 20. Ne2 Bg7 21. Nc5 Ra7 22. Rfd1 e6 23. Nd4 Bxd4 24. Rxd4 Nc3 25. Rxd8 Nxb5 26. Rxf8+ Kxf8 27. Ne4 h6 28. Rc5 Nd4 29. Be5 Nc6 30. Bd6+ Kg7 31. Rb5 Nd5 32. Bc5 b6 33. Bxb6 Rd7 34. h4 f5 35. Nc5 Nd4 36. Nxd7 Nxb5 37. Bc5 Ndc3 38. Ne5 Nxa2 39. Nc4 Nc1 40. Nxa3 Nxa3 41. Bxa3 Nxb3 42. hxg5 hxg5 43. f3 Kf6 44. Kf2 f4 45. g3 fxg3+ 1/2-1/2

[Event "Naujac op 05th"]
[Site "Naujac"]
[Date "2002.07.06"]
[Round "8"]
[White "Helvensteijn, Dennis"]
[Black "Foisor, Ovidiu Doru"]
[Result "1/2-1/2"]
[ECO "A42"]
[WhiteElo "2242"]
[BlackElo "2431"]
[PlyCount "78"]
[EventDate "2002.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. e4 c6 2. c4 g6 3. Nc3 Bg7 4. d4 d6 5. f4 Qb6 6. Nf3 Bg4 7. d5 Nd7 8. h3 Bxf3 9. Qxf3 Ngf6 10. Rb1 0-0 11. Be3 Qb4 12. Bd2 cxd5 13. Nxd5 Qa4 14. Nc3 Qc6 15. Bd3 Nc5 16. 0-0 Rfc8 17. b3 a6 18. Rbc1 Nxd3 19. Qxd3 e6 20. Be3 Nd7 21. Rfd1 Bf8 22. e5 Nc5 23. Qd4 dxe5 24. fxe5 Rc7 25. Qh4 Be7 26. Bg5 Bxg5 27. Qxg5 Rd7 28. Rxd7 Nxd7 29. Kh1 Qc5 30. Re1 Qf2 31. Rd1 Nc5 32. b4 Nd3 33. Ne4 Qe2 34. Nf6+ Kg7 35. Nh5+ Kg8 36. Nf6+ Kg7 37. Nh5+ Kg8 38. Nf6+ Kg7 39. Nh5+ Kg8 1/2-1/2

[Event "Naujac op 05th"]
[Site "Naujac"]
[Date "2002.07.05"]
[Round "7"]
[White "Helvensteijn, Dennis"]
[Black "Berard, Jean Claude"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2242"]
[PlyCount "49"]
[EventDate "2002.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. e4 e6 2. c4 d5 3. exd5 exd5 4. cxd5 Nf6 5. Bb5+ Bd7 6. Bc4 Bd6 7. Ne2 0-0 8. Nbc3 c6 9. a4 Bf5 10. d3 Nbd7 11. 0-0 Ng4 12. h3 Qh4 13. Ng3 Nxf2 14. Nxf5 Nxh3+ 15. gxh3 Qxh3 16. Qe2 Be5 17. Qg2 Qh5 18. Ne4 Kh8 19. d4 g6 20. Be2 gxf5 21. Bxh5 Rg8 22. Ng5 Bxd4+ 23. Kh1 Be5 24. Rxf5 Rg7 25. Qe4 1-0

[Event "Naujac op 05th"]
[Site "Naujac"]
[Date "2002.07.03"]
[Round "5"]
[White "Helvensteijn, Dennis"]
[Black "Maiwald, Harald"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2242"]
[PlyCount "47"]
[EventDate "2002.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. e4 c5 2. c3 g6 3. d4 cxd4 4. cxd4 d5 5. e5 Nc6 6. Nc3 Bg7 7. Nge2 Nh6 8. h4 f6 9. exf6 exf6 10. Nf4 Nf5 11. Be3 0-0 12. Nfxd5 Re8 13. Be2 Be6 14. Nf4 Bf7 15. d5 Nb4 16. Qb3 Qa5 17. a3 Nxd5 18. Nfxd5 Rxe3 19. fxe3 Nxe3 20. Bc4 Nxc4 21. Qxc4 f5 22. 0-0-0 Bxc3 23. Qxc3 Qd8 24. Nf6+ 1-0

[Event "Naujac op 05th"]
[Site "Naujac"]
[Date "2002.07.02"]
[Round "4"]
[White "Milharoux, Guillaume"]
[Black "Helvensteijn, Dennis"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "2040"]
[BlackElo "2242"]
[PlyCount "59"]
[EventDate "2002.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Ng3 h5 6. h4 Bg4 7. Be2 e6 8. Bg5 Nbd7 9. c3 Qc7 10. Qc2 Bd6 11. Bxg4 hxg4 12. N1e2 Nh7 13. 0-0-0 f5 14. Qb3 Ndf8 15. Be3 f4 16. Ne4 fxe3 17. Nxd6+ Qxd6 18. Qxb7 Qd8 19. Qxg7 Qf6 20. Qb7 Qd8 21. Qxc6+ Kf7 22. fxe3 Nf6 23. Nf4 Rc8 24. Qa6 Qc7 25. Rdf1 Rd8 26. e4 Ke7 27. Qa3+ Ke8 28. Nxe6 Nxe6 29. Rxf6 Nxd4 30. Rhf1 1-0

[Event "Naujac op 05th"]
[Site "Naujac"]
[Date "2002.07.01"]
[Round "2"]
[White "Caminade, Christian"]
[Black "Helvensteijn, Dennis"]
[Result "0-1"]
[ECO "B16"]
[WhiteElo "2136"]
[BlackElo "2242"]
[PlyCount "100"]
[EventDate "2002.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. c3 Nd7 7. Bc4 Nb6 8. Bb3 h5 9. Ne2 Bg4 10. f3 Bf5 11. Ng3 Bg6 12. h4 Qc7 13. f4 e6 14. Qf3 Bd6 15. Ne4 Be7 16. Bd2 0-0-0 17. 0-0-0 Nd5 18. g3 Bxe4 19. Qxe4 f5 20. Qf3 Nf6 21. Bc2 c5 22. dxc5 Bxc5 23. Rhe1 Ng4 24. Re2 Rd6 25. Be1 Rxd1+ 26. Bxd1 Rd8 27. Bd2 Qb6 28. b4 Bg1 29. Bb3 a5 30. bxa5 Qxa5 31. Kb1 Qb5 32. c4 Qc5 33. Bc3 Rd6 34. Be5 Rd7 35. Qc3 Qc6 36. Qa5 Nxe5 37. Rxe5 Qf3 38. Qe1 Bf2 39. Qa5 Qxg3 40. Rb5 Kb8 41. c5 Qg1+ 42. Kb2 Bd4+ 43. Ka3 Qc1+ 44. Ka4 Bc3 45. Rb4 Bxb4 46. Qxb4 Qe3 47. Bc4 Rc7 48. c6 Rxc6 49. Bb5 Rc7 50. Qf8+ Ka7 0-1

[Event "Naujac op 05th"]
[Site "Naujac"]
[Date "2002.07.01"]
[Round "3"]
[White "Helvensteijn, Dennis"]
[Black "Iordachescu, Viorel"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2242"]
[BlackElo "2555"]
[PlyCount "54"]
[EventDate "2002.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Bc4 Nf6 5. d3 c6 6. Nge2 g6 7. 0-0 Bg7 8. Ng3 0-0 9. f4 Nbd7 10. a3 Qc5+ 11. Kh1 Nb6 12. Ba2 Nbd5 13. Nce4 Nxe4 14. Nxe4 Qb6 15. Qe2 Qc7 16. Qf2 Nf6 17. h3 b6 18. Nxf6+ Bxf6 19. d4 Bf5 20. c3 Rad8 21. Bb1 e6 22. g4 Bxb1 23. Rxb1 c5 24. dxc5 bxc5 25. Be3 Rd3 26. Bxc5 Rxh3+ 27. Kg2 Bh4 0-1

[Event "Lost Boys op"]
[Site "Amsterdam"]
[Date "2001.08.19"]
[Round "9"]
[White "Helvensteijn, Dennis"]
[Black "Mellegers, Joost P"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2191"]
[BlackElo "2308"]
[PlyCount "75"]
[EventDate "2001.08.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 083 Extra"]
[Source "ChessBase"]
[SourceDate "2001.09.11"]
[SourceVersion "1"]
[SourceVersionDate "2001.09.11"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Bg4 6. Be2 e6 7. 0-0 Nc6 8. h3 Bh5 9. Be3 cxd4 10. cxd4 Be7 11. Nc3 Qd6 12. Ne5 Bxe2 13. Qxe2 0-0 14. Rfd1 Rac8 15. Rac1 a6 16. Nc4 Qd8 17. d5 exd5 18. Nb6 Rb8 19. Ncxd5 Nxd5 20. Rxd5 Qc7 21. Nd7 Rfe8 22. Qg4 Rbc8 23. Bb6 h5 24. Qf3 Bg5 25. Bxc7 Bxc1 26. Bf4 Bxb2 27. Be3 h4 28. Qg4 Ne7 29. Rd2 Bc3 30. Rc2 f5 31. Qd1 b5 32. Bc5 b4 33. Re2 Ng6 34. Qd5+ Kh7 35. Qxf5 Rxe2 36. Qh5+ Kg8 37. Qxe2 Nf4 38. Qg4 1-0

[Event "Lost Boys op"]
[Site "Amsterdam"]
[Date "2001.08.18"]
[Round "8"]
[White "Witt, Rob"]
[Black "Helvensteijn, Dennis"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2280"]
[BlackElo "2191"]
[PlyCount "77"]
[EventDate "2001.08.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 083 Extra"]
[Source "ChessBase"]
[SourceDate "2001.09.11"]
[SourceVersion "1"]
[SourceVersionDate "2001.09.11"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. Nf3 Bg4 4. Bf4 e6 5. e3 Bb4+ 6. Nc3 Nge7 7. Rc1 Ng6 8. h3 Bh5 9. Bh2 Nh4 10. g4 Nxf3+ 11. Qxf3 Bg6 12. Qg3 Rc8 13. Be2 0-0 14. 0-0 f5 15. f4 dxc4 16. Bxc4 Bf7 17. Qg2 Na5 18. Be2 c5 19. a3 Bxc3 20. Rxc3 cxd4 21. Rxc8 Qxc8 22. exd4 Rd8 23. Bg3 Nb3 24. Be1 Nxd4 25. Bc3 e5 26. Rd1 Qc5 27. Kh2 Rc8 28. gxf5 Bd5 29. Bxd4 exd4 30. Qf2 Re8 31. Bh5 Re3 32. Qd2 d3 33. Rc1 Bc4 34. Rxc4 Rxh3+ 35. Kxh3 Qxc4 36. Qc3 Qxc3 37. bxc3 Kf8 38. Kg3 Ke7 39. Kf3 1-0

[Event "Lost Boys op"]
[Site "Amsterdam"]
[Date "2001.08.17"]
[Round "7"]
[White "Helvensteijn, Dennis"]
[Black "Blokhuis, Jeroen"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2191"]
[BlackElo "2341"]
[PlyCount "80"]
[EventDate "2001.08.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 083 Extra"]
[Source "ChessBase"]
[SourceDate "2001.09.11"]
[SourceVersion "1"]
[SourceVersionDate "2001.09.11"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 Nc6 6. Nc3 Nxc3 7. bxc3 d5 8. Bd3 g6 9. Be3 Bf5 10. Bxf5 gxf5 11. Ne2 e6 12. 0-0 b6 13. c4 dxc4 14. Qa4 Qd7 15. Qxc4 Na5 16. Qd3 Bg7 17. Rfd1 0-0-0 18. Nc3 Kb8 19. Rab1 Ka8 20. Qe2 Rb8 21. Nb5 Rhc8 22. Nd6 Rc7 23. f4 Bf8 24. d5 Bxd6 25. dxe6 fxe6 26. Rxd6 Qc8 27. Qf3+ Qb7 28. Qxb7+ Kxb7 29. Rxe6 Nc4 30. Bf2 Nd2 31. Rd1 Ne4 32. Rh6 Rd8 33. Re1 Rd2 34. Bh4 Rg7 35. g3 Rxa2 36. e6 Nd2 37. e7 Nf3+ 38. Kf1 Nxh2+ 39. Kg1 Nf3+ 40. Kf1 Nh2+ 1/2-1/2

[Event "Lost Boys op"]
[Site "Amsterdam"]
[Date "2001.08.16"]
[Round "6"]
[White "Nemet, Ivan"]
[Black "Helvensteijn, Dennis"]
[Result "1/2-1/2"]
[ECO "D07"]
[WhiteElo "2427"]
[BlackElo "2191"]
[PlyCount "66"]
[EventDate "2001.08.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 083 Extra"]
[Source "ChessBase"]
[SourceDate "2001.09.11"]
[SourceVersion "1"]
[SourceVersionDate "2001.09.11"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. c4 Bg4 4. cxd5 Bxf3 5. gxf3 Qxd5 6. e3 e5 7. Nc3 Bb4 8. Bd2 Bxc3 9. bxc3 Qd6 10. f4 exf4 11. e4 Nge7 12. Qf3 0-0 13. Qxf4 Rae8 14. Qxd6 cxd6 15. Rb1 f5 16. Rxb7 fxe4 17. Bg5 h6 18. Bh4 Rb8 19. Rxe7 Nxe7 20. Bxe7 Rb1+ 21. Ke2 Rf3 22. Bxd6 Rb2+ 23. Kd1 Rxc3 24. Be5 Rcc2 25. Rg1 g5 26. Bg2 Rd2+ 27. Kc1 Rdc2+ 28. Kd1 Re2 29. Re1 Rbd2+ 30. Kc1 Rc2+ 31. Kb1 Rb2+ 32. Kc1 Rec2+ 33. Kd1 Rd2+ 1/2-1/2

[Event "Lost Boys op"]
[Site "Amsterdam"]
[Date "2001.08.14"]
[Round "5"]
[White "Helvensteijn, Dennis"]
[Black "Day, Lawrence A"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "2191"]
[BlackElo "2367"]
[PlyCount "69"]
[EventDate "2001.08.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 083 Extra"]
[Source "ChessBase"]
[SourceDate "2001.09.11"]
[SourceVersion "1"]
[SourceVersionDate "2001.09.11"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. c3 d6 4. Bd3 e5 5. Ne2 Nc6 6. 0-0 Bd7 7. Be3 Nh6 8. h3 f5 9. f4 fxe4 10. Bxe4 exd4 11. Nxd4 0-0 12. Na3 Kh8 13. Nac2 Nf5 14. Nxf5 gxf5 15. Bf3 a5 16. Qd2 Rb8 17. Rfe1 Re8 18. Rad1 Qf6 19. Nd4 Ne7 20. Bf2 Qf7 21. b3 b5 22. Qd3 Nd5 23. Ne2 Nf6 24. Ng3 Qg6 25. c4 b4 26. Kh2 Bh6 27. Qd4 Rxe1 28. Rxe1 c5 29. Qd2 Re8 30. Rxe8+ Bxe8 31. Be3 Bg7 32. Qd3 Bd7 33. Bf2 Bh6 34. Be3 Bg7 35. Bf2 1/2-1/2

[Event "Lost Boys op"]
[Site "Amsterdam"]
[Date "2001.08.13"]
[Round "4"]
[White "Hendriks, Willy"]
[Black "Helvensteijn, Dennis"]
[Result "1-0"]
[ECO "B14"]
[WhiteElo "2321"]
[BlackElo "2191"]
[PlyCount "103"]
[EventDate "2001.08.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 083 Extra"]
[Source "ChessBase"]
[SourceDate "2001.09.11"]
[SourceVersion "1"]
[SourceVersionDate "2001.09.11"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. Qb3 Bg7 7. cxd5 0-0 8. Be2 b6 9. Bf3 Bb7 10. Bg5 Na6 11. Nge2 Qd7 12. 0-0 Rfd8 13. Rfe1 h6 14. Bxf6 Bxf6 15. Rad1 Rab8 16. h3 h5 17. Nf4 Bg5 18. Nd3 Bf6 19. Ne5 Qe8 20. Nc6 Bxc6 21. dxc6 Nc7 22. d5 Qf8 23. Nb5 Nxb5 24. Qxb5 Rbc8 25. a4 Rc7 26. Qb4 Rd6 27. Rd2 Qd8 28. Rc2 Rc8 29. Qc4 Qc7 30. b4 Rb8 31. Rce2 Rdd8 32. Re3 Rd6 33. g3 Rdd8 34. h4 Rd6 35. Qf4 Kg7 36. b5 Rbd8 37. Bg2 Kg8 38. Qc4 Kg7 39. Kh2 Kg8 40. Qf4 Kg7 41. Bh3 Ra8 42. Bg2 Kg8 43. Qc4 Rdd8 44. f4 Rac8 45. Qe2 Kf8 46. Kh1 Qd6 47. f5 Rc7 48. fxg6 fxg6 49. Qd3 Kf7 50. Bh3 Kg7 51. Be6 Qb4 52. Re4 1-0

[Event "Lost Boys op"]
[Site "Amsterdam"]
[Date "2001.08.12"]
[Round "3"]
[White "Helvensteijn, Dennis"]
[Black "Ernst, Sipke"]
[Result "0-1"]
[ECO "C56"]
[WhiteElo "2191"]
[BlackElo "2440"]
[PlyCount "62"]
[EventDate "2001.08.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 083 Extra"]
[Source "ChessBase"]
[SourceDate "2001.09.11"]
[SourceVersion "1"]
[SourceVersionDate "2001.09.11"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qh5 9. Nxe4 Be6 10. Bg5 h6 11. Bf6 Qg6 12. Nh4 Qg4 13. Qxg4 Bxg4 14. Bxd4 0-0-0 15. Bc3 Nb4 16. Rec1 Nd5 17. Bd2 Be7 18. Nf3 Nf6 19. Re1 Bxf3 20. gxf3 Nxe4 21. Rxe4 Bf6 22. Be3 Bxb2 23. Rb1 Bf6 24. Ra4 a6 25. Rab4 b6 26. c4 Bd4 27. Ra4 Kb7 28. c5 Bxe3 29. fxe3 b5 30. Rf4 Rd7 31. a4 Kc6 0-1

[Event "Lost Boys op"]
[Site "Amsterdam"]
[Date "2001.08.11"]
[Round "2"]
[White "Helvensteijn, Dennis"]
[Black "Solleveld, Maarten"]
[Result "1/2-1/2"]
[ECO "C56"]
[WhiteElo "2191"]
[BlackElo "2427"]
[PlyCount "66"]
[EventDate "2001.08.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 083 Extra"]
[Source "ChessBase"]
[SourceDate "2001.09.11"]
[SourceVersion "1"]
[SourceVersionDate "2001.09.11"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Nxe4 Be6 10. Bd2 Bb4 11. Nxd4 Nxd4 12. c3 0-0-0 13. cxb4 Qf5 14. Rc1 Bxa2 15. Qa4 Bd5 16. Ng3 Nf3+ 17. Kh1 Qd3 18. Re7 Qxd2 19. Rcxc7+ Kb8 20. Qb5 Ka8 21. Rxb7 Qd1+ 22. Nf1 Qxf1+ 23. Qxf1 Bxb7 24. Rxb7 Kxb7 25. Qb5+ Kc7 26. Qc5+ Kb8 27. Qb5+ Kc7 28. Qc4+ Kd6 29. Qd3+ Ke6 30. Qxf3 Rhe8 31. Qc6+ Ke7 32. Qc5+ Rd6 33. Qe5+ Kd7 1/2-1/2

[Event "Lost Boys op"]
[Site "Amsterdam"]
[Date "2001.08.10"]
[Round "1"]
[White "Van Beek, Lucien"]
[Black "Helvensteijn, Dennis"]
[Result "0-1"]
[ECO "D07"]
[WhiteElo "2369"]
[BlackElo "2191"]
[PlyCount "82"]
[EventDate "2001.08.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 083 Extra"]
[Source "ChessBase"]
[SourceDate "2001.09.11"]
[SourceVersion "1"]
[SourceVersionDate "2001.09.11"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. cxd5 Qxd5 4. e3 e5 5. Nc3 Bb4 6. Bd2 Bxc3 7. bxc3 Qd6 8. Bd3 Nf6 9. Ne2 0-0 10. f3 Re8 11. 0-0 Be6 12. Be1 Rad8 13. Bg3 Qe7 14. Qd2 a6 15. Rad1 h6 16. Qb2 Bc8 17. e4 b5 18. a4 bxa4 19. Bc2 a3 20. Qa1 Nd7 21. Ba4 Bb7 22. Rb1 Ba8 23. Rfd1 Nb6 24. Bxc6 Bxc6 25. Bxe5 Bb5 26. Qa2 Nc4 27. Bf4 Nb2 28. Rd2 Bc4 29. Qa1 Rb8 30. Ng3 Rb3 31. Nf5 Qd7 32. d5 Reb8 33. Be5 f6 34. Bd4 Qb5 35. Ne3 Bd3 36. Re1 Bc4 37. Nc2 Qa4 38. Qc1 Nd3 39. Rxd3 Bxd3 40. Bxf6 Rb1 41. Qf4 Qxc2 0-1

[Event "Naujac op 04th"]
[Site "Naujac"]
[Date "2001.??.??"]
[Round "5"]
[White "Helvensteijn, Dennis"]
[Black "Le Hetet, Nicolas"]
[Result "1-0"]
[ECO "C56"]
[WhiteElo "2191"]
[PlyCount "61"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "FRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. 0-0 Bc5 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. Ng5 Qd5 10. Nc3 Qf5 11. Nce4 0-0-0 12. g4 Qe5 13. Nxe6 fxe6 14. fxg7 Rhg8 15. Bh6 d3 16. c3 Be7 17. Qd2 Rd7 18. f4 Qd5 19. Qg2 Nd8 20. g5 Nf7 21. Ng3 Qc5+ 22. Kh1 d2 23. Rf1 Qb5 24. Qe4 Qd5 25. Rad1 Nxh6 26. gxh6 Bh4 27. Qxd5 Rxd5 28. f5 exf5 29. Rxf5 Rdd8 30. Ne4 Rde8 31. Rf4 1-0

[Event "Naujac op 04th"]
[Site "Naujac"]
[Date "2001.??.??"]
[Round "4"]
[White "Hupe, Henning"]
[Black "Helvensteijn, Dennis"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2129"]
[BlackElo "2191"]
[PlyCount "65"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "FRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. Bf4 Bg4 4. e3 e6 5. c4 Nf6 6. Nc3 Ne4 7. cxd5 exd5 8. Qb3 Nxc3 9. bxc3 Rb8 10. Be2 Be7 11. h3 Bh5 12. 0-0 0-0 13. Qc2 Bg6 14. Bd3 Bd6 15. Bxg6 hxg6 16. Bxd6 Qxd6 17. Rfe1 Rfe8 18. e4 dxe4 19. Rxe4 Rxe4 20. Qxe4 Ne7 21. Re1 Nd5 22. c4 Nf6 23. Qh4 c6 24. Re5 Re8 25. Rxe8+ Nxe8 26. Qe4 Nf6 27. Qe3 b5 28. cxb5 cxb5 29. Qc3 Qd7 30. Qc5 Ne4 31. Qe5 Nd6 32. Qc5 Ne4 33. Qe5 1/2-1/2

[Event "Haarlem AKN op 08th"]
[Site "Haarlem"]
[Date "1999.07.04"]
[Round "5"]
[White "Blees, Albert"]
[Black "Helvensteijn, Dennis"]
[Result "1-0"]
[ECO "B18"]
[WhiteElo "2410"]
[BlackElo "2215"]
[PlyCount "68"]
[EventDate "1999.07.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. N1e2 Bh7 8. Nf4 e5 9. dxe5 Qa5+ 10. c3 Qxe5+ 11. Be2 Nd7 12. 0-0 0-0-0 13. Re1 Qc7 14. Qa4 Kb8 15. Nfh5 Nb6 16. Qg4 g6 17. Bf4 Bd6 18. Rad1 Nd5 19. Bxd6 Qxd6 20. Qd4 Nge7 21. Ne4 Qc7 22. Nhf6 Nf5 23. Qc4 Qe5 24. Nxh7 Rxh7 25. Bf1 Qc7 26. Nc5 Rhh8 27. Qe4 Qd6 28. Nd3 Qf6 29. g3 Nd6 30. Qg4 h5 31. Qg5 Rhe8 32. Ne5 Qxg5 33. hxg5 Kc7 34. c4 f6 1-0

[Event "Haarlem AKN op 08th"]
[Site "Haarlem"]
[Date "1999.07.04"]
[Round "6"]
[White "Helvensteijn, Dennis"]
[Black "Tiggelman, Rene"]
[Result "0-1"]
[ECO "B44"]
[WhiteElo "2215"]
[PlyCount "82"]
[EventDate "1999.07.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e6 2. c4 c5 3. Nc3 Nc6 4. Nf3 Nf6 5. d4 cxd4 6. Nxd4 Bb4 7. Nxc6 dxc6 8. Qxd8+ Kxd8 9. Bd2 e5 10. 0-0-0 Ke7 11. f3 a5 12. Kc2 Be6 13. Be3 Rhd8 14. Be2 Rxd1 15. Rxd1 Rd8 16. Rxd8 Kxd8 17. Bb6+ Kc8 18. a3 Nd7 19. Na4 Be1 20. Be3 Bh4 21. c5 Be7 22. Kc3 h5 23. Bc4 Bxc4 24. Kxc4 Nf8 25. Nb6+ Kc7 26. Bd2 Bxc5 27. Na8+ Kd6 28. Bxa5 b5+ 29. Kc3 Ne6 30. a4 bxa4 31. Bb4 Nf4 32. Nb6 Bxb4+ 33. Kxb4 Nxg2 34. Nc4+ Ke6 35. Kxa4 Ne1 36. Nd2 f5 37. Kb4 g5 38. b3 fxe4 39. fxe4 g4 40. Kc4 h4 41. Nf1 h3 0-1

[Event "Haarlem AKN op 08th"]
[Site "Haarlem"]
[Date "1999.07.03"]
[Round "4"]
[White "Helvensteijn, Dennis"]
[Black "Straat, Evert Jan"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2215"]
[BlackElo "2210"]
[PlyCount "81"]
[EventDate "1999.07.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e6 2. c4 c5 3. Nc3 Nc6 4. Nf3 g6 5. d4 cxd4 6. Nxd4 a6 7. Nxc6 bxc6 8. Qd4 f6 9. Be2 e5 10. Qd3 Nh6 11. 0-0 d6 12. Be3 Nf7 13. Rfd1 Be6 14. b4 Be7 15. a4 0-0 16. a5 f5 17. f3 f4 18. Bb6 Qc8 19. Na4 g5 20. b5 Bxc4 21. Qxc4 axb5 22. Qb3 bxa4 23. Rxa4 Kg7 24. a6 h5 25. a7 g4 26. Kh1 Ng5 27. Bg1 Qd7 28. Rb4 Rfc8 29. Rb8 gxf3 30. gxf3 Ne6 31. Ba6 Re8 32. Rxa8 Rxa8 33. Bb7 Nc7 34. Bxa8 Nxa8 35. Bc5 Qh3 36. Rg1+ Kf6 37. Qg8 Qxf3+ 38. Rg2 Qxe4 39. Bf2 f3 40. Rg7 Kf5 41. Rf7+ 1-0

[Event "Haarlem AKN op 08th"]
[Site "Haarlem"]
[Date "1999.07.03"]
[Round "3"]
[White "Pelter, Yehuda Z"]
[Black "Helvensteijn, Dennis"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2043"]
[BlackElo "2215"]
[PlyCount "66"]
[EventDate "1999.07.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. Bf4 Bg4 4. h3 Bh5 5. c3 e6 6. e3 Bd6 7. g4 Bg6 8. Qa4 Nge7 9. Ne5 Be4 10. Rg1 f6 11. Nxc6 bxc6 12. Nd2 Bg6 13. Bxd6 cxd6 14. 0-0-0 0-0 15. Nf3 c5 16. dxc5 dxc5 17. Bd3 Bxd3 18. Rxd3 Rb8 19. g5 Qb6 20. Rd2 Ng6 21. gxf6 Rxf6 22. Qg4 Rbf8 23. Rg3 Qb7 24. h4 d4 25. h5 dxc3 26. Rc2 Qa6 27. hxg6 Qf1+ 28. Ne1 Qxe1+ 29. Qd1 cxb2+ 30. Rxb2 Qxd1+ 31. Kxd1 Rxf2 32. gxh7+ Kxh7 33. Rb7 R8f7 0-1

[Event "Haarlem AKN op 08th"]
[Site "Haarlem"]
[Date "1999.07.02"]
[Round "2"]
[White "Helvensteijn, Dennis"]
[Black "Breedveld, Andre"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2215"]
[BlackElo "2145"]
[PlyCount "110"]
[EventDate "1999.07.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 e6 5. Nf3 Nf6 6. Bd3 Nc6 7. 0-0 Be7 8. Qe2 cxd4 9. cxd4 0-0 10. Rd1 Nb4 11. Nc3 Qh5 12. Bb1 b6 13. a3 Nbd5 14. Qd3 Bb7 15. Ne2 Bd6 16. h3 Nc7 17. Ng3 Bxg3 18. fxg3 Be4 19. Qe2 Bxb1 20. Rxb1 Qg6 21. Bf4 Ncd5 22. Be5 Rac8 23. Rbc1 Qe4 24. Qxe4 Nxe4 25. Re1 Rxc1 26. Rxc1 Rd8 27. Re1 Nd6 28. Bxd6 Rxd6 29. Rc1 f6 30. Kf2 Rd7 31. Ke2 Kf7 32. Rc2 h5 33. Kd3 g5 34. h4 g4 35. Ng1 Ne7 36. Ne2 e5 37. Ke4 Ke6 38. dxe5 fxe5 39. Ke3 Nf5+ 40. Kf2 Rf7 41. Kg1 Nd4 42. Rd2 Nxe2+ 43. Rxe2 Kd5 44. Rd2+ Kc4 45. Re2 Kd4 46. Rd2+ Ke3 47. Rd5 Ke4 48. Rd6 Ke3 49. Rd5 Re7 50. Kf1 e4 51. Rxh5 Rc7 52. Kg1 Rc1+ 53. Kh2 Kd4 54. Rh7 e3 55. Rd7+ Ke4 1/2-1/2

[Event "Haarlem AKN op 08th"]
[Site "Haarlem"]
[Date "1999.07.02"]
[Round "1"]
[White "Zegstroo, Martin"]
[Black "Helvensteijn, Dennis"]
[Result "0-1"]
[ECO "B13"]
[BlackElo "2215"]
[PlyCount "52"]
[EventDate "1999.07.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. h3 g6 6. c3 Bg7 7. Nf3 Nf6 8. 0-0 0-0 9. Bf4 Nh5 10. Bh2 f5 11. Nbd2 f4 12. Re1 Qd6 13. Qe2 Bd7 14. Ne5 Nxe5 15. dxe5 Qb6 16. Nb3 f3 17. Qd2 fxg2 18. Kxg2 Bh6 19. Qe2 Bf4 20. Nd4 Bxh2 21. Kxh2 Nf4 22. Qd2 Nxh3 23. Rf1 Rf4 24. f3 Raf8 25. Qg2 Rh4 26. Kg3 Nf4 0-1

[Event "Utrecht op"]
[Site "Utrecht"]
[Date "1998.06.05"]
[Round "4"]
[White "Helvensteijn, Dennis"]
[Black "Meijers, Viesturs"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2215"]
[BlackElo "2440"]
[PlyCount "81"]
[EventDate "1998.05.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Nxe5 0-0 5. Be2 d6 6. Nf3 Bxc3 7. dxc3 Nxe4 8. 0-0 h6 9. Be3 Nc6 10. Re1 Re8 11. h3 a6 12. Bd3 Bf5 13. Nd4 Nxd4 14. cxd4 Qf6 15. Qf3 Qe6 16. Bf4 g5 17. Be3 Bg6 18. Qd1 Qf6 19. f3 Ng3 20. Qd2 Bxd3 21. Qxd3 d5 22. c3 Nh5 23. Qd2 Re6 24. Bf2 Rae8 25. Rxe6 Rxe6 26. Re1 c6 27. Rxe6 Qxe6 28. Qe1 Qxe1+ 29. Bxe1 Nf4 30. Bd2 Kg7 31. Bxf4 gxf4 32. Kf2 Kg6 33. Ke2 Kf5 34. Kd2 Kg5 35. Ke2 Kh4 36. Kf2 b6 37. Kf1 Kg3 38. Kg1 a5 39. Kf1 c5 40. b3 cxd4 41. cxd4 1/2-1/2

[Event "Utrecht op"]
[Site "Utrecht"]
[Date "1998.06.05"]
[Round "?"]
[White "Oosterom, Erik"]
[Black "Helvensteijn, Dennis"]
[Result "0-1"]
[ECO "D07"]
[WhiteElo "2225"]
[BlackElo "2200"]
[PlyCount "66"]
[EventDate "1998.05.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. Nc3 Nf6 4. Nf3 dxc4 5. e3 Bg4 6. Bxc4 e6 7. Bb5 Bb4 8. Qa4 Bxc3+ 9. bxc3 Bxf3 10. gxf3 Qd5 11. e4 Nxe4 12. c4 Qxd4 13. Bxc6+ bxc6 14. Qxc6+ Ke7 15. 0-0 Nxf2 16. Ba3+ Kf6 17. Bc5 Nh3+ 18. Kg2 Qh4 19. Rae1 g5 20. Qxc7 Kg6 21. Rd1 Rac8 22. Qe5 f6 23. Qe3 Qxc4 24. Bd6 Nf4+ 25. Kh1 e5 26. Rf2 Rhd8 27. Rfd2 Rd7 28. Kg1 Rcd8 29. Bb4 Rxd2 30. Rxd2 Rb8 31. a3 a5 32. Qa7 Rxb4 33. Rd7 Rb1+ 0-1

[Event "Utrecht op"]
[Site "Utrecht"]
[Date "1998.06.05"]
[Round "?"]
[White "Van Roosmalen, Sjoerd"]
[Black "Helvensteijn, Dennis"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1935"]
[BlackElo "2200"]
[PlyCount "47"]
[EventDate "1998.05.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. Bf4 Bg4 4. e3 e6 5. Be2 Bd6 6. Bxd6 Qxd6 7. 0-0 Nf6 8. Nbd2 0-0 9. c4 Rfe8 10. Rc1 Rad8 11. c5 Qe7 12. Qb3 Rb8 13. Bb5 Rec8 14. Bxc6 bxc6 15. Qc3 Nd7 16. Rfe1 f5 17. Ne5 Nxe5 18. dxe5 Bh5 19. Nb3 Be8 20. Nd4 Bd7 21. f4 Rf8 22. b3 Qd8 23. Qa5 Qc8 24. a3 1/2-1/2

[Event "Soest op"]
[Site "Soest"]
[Date "1998.??.??"]
[Round "?"]
[White "Baak, Karl"]
[Black "Helvensteijn, Dennis"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1765"]
[BlackElo "2200"]
[PlyCount "62"]
[EventDate "1998.06.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 c5 4. Nc3 Nc6 5. dxc5 e6 6. f4 Bxc5 7. Nf3 Nge7 8. Bd3 a6 9. Qe2 Nb4 10. a3 Nxd3+ 11. Qxd3 Nf5 12. Bd2 Bd7 13. 0-0-0 Qb6 14. Rhe1 h5 15. Re2 0-0-0 16. b4 Be7 17. Be1 a5 18. Bf2 Qc6 19. Nd4 Nxd4 20. Qxd4 Qa6 21. Qb6 axb4 22. axb4 Qa3+ 23. Kd2 Bxb4 24. Bd4 Ba5 25. Qb1 Kb8 26. Re3 Rc8 27. Qa1 Qxa1 28. Rxa1 Rc4 29. Ba7+ Kxa7 30. Rxa5+ Kb6 31. Ra3 d4 0-1

[Event "Soest op"]
[Site "Soest"]
[Date "1998.??.??"]
[Round "?"]
[White "De Jager, Leo"]
[Black "Helvensteijn, Dennis"]
[Result "0-1"]
[ECO "A35"]
[BlackElo "2215"]
[PlyCount "74"]
[EventDate "1998.06.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. cxd5 Bg7 7. Nf3 0-0 8. Be2 Nxd5 9. 0-0 Nc6 10. Qb3 Be6 11. Qxb7 Nxd4 12. Nxd4 Bxd4 13. Rd1 Rb8 14. Qc6 Bxc3 15. bxc3 Qa5 16. Bd2 Rb6 17. c4 Qa3 18. cxd5 Rxc6 19. dxc6 Qa4 20. Bh6 Rc8 21. c7 f6 22. Rd8+ Kf7 23. Rxc8 Bxc8 24. Be3 Qc2 25. Re1 Qxa2 26. h3 a5 27. Bf3 a4 28. Rd1 e6 29. Rd8 Qa1+ 30. Rd1 Qc3 31. Rc1 Qb4 32. Bc5 Qb2 33. Rd1 Qc3 34. Rd8 Qxc5 35. Rxc8 Kg7 36. Ra8 Qc1+ 37. Kh2 Qxc7+ 0-1

[Event "Soest op"]
[Site "Soest"]
[Date "1998.??.??"]
[Round "?"]
[White "Helvensteijn, Dennis"]
[Black "Cornelisse, Johnny JA"]
[Result "1-0"]
[ECO "E88"]
[WhiteElo "2200"]
[BlackElo "1915"]
[PlyCount "79"]
[EventDate "1998.06.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. f3 e5 4. d5 c6 5. c4 g6 6. Nc3 Bg7 7. Be3 0-0 8. Qd2 cxd5 9. cxd5 a6 10. Bd3 Nbd7 11. Nge2 b6 12. g4 Re8 13. Ng3 Nc5 14. Bc2 a5 15. h4 Ba6 16. h5 Nfd7 17. hxg6 fxg6 18. Bg5 Qc7 19. Bh6 Nf8 20. Kf2 Rad8 21. Bxg7 Qxg7 22. a3 Rc8 23. b4 Qc7 24. Rac1 Ncd7 25. Bd3 Bxd3 26. Qxd3 Qc4 27. Qxc4 Rxc4 28. Nb5 Rec8 29. Ne2 Rxc1 30. Rxc1 Rxc1 31. Nxc1 axb4 32. axb4 h5 33. gxh5 gxh5 34. Nxd6 Ng6 35. Nd3 Kg7 36. Nc4 Kf6 37. b5 Kg5 38. Ndb2 Ne7 39. Nd3 Ng6 40. Ncxe5 1-0

[Event "Soest op"]
[Site "Soest"]
[Date "1998.??.??"]
[Round "?"]
[White "Helvensteijn, Dennis"]
[Black "Schuurman, Petra"]
[Result "1/2-1/2"]
[ECO "B10"]
[WhiteElo "2200"]
[BlackElo "2135"]
[PlyCount "36"]
[EventDate "1998.06.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c6 2. c4 d5 3. exd5 cxd5 4. cxd5 Nf6 5. Bb5+ Nbd7 6. Nc3 g6 7. Nge2 Bg7 8. d3 a6 9. Bc4 b5 10. Bb3 Bb7 11. 0-0 b4 12. Ne4 Nxd5 13. Bg5 Qb6 14. Nd2 N5f6 15. Be3 Qd8 16. Nf4 0-0 17. d4 Nb6 18. Nd3 a5 1/2-1/2

[Event "Haarlem AKN op 06th"]
[Site "Haarlem"]
[Date "1997.??.??"]
[Round "2"]
[White "Helvensteijn, Dennis"]
[Black "Ritsema, Ronald JE"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2215"]
[BlackElo "1980"]
[PlyCount "75"]
[EventDate "1997.06.26"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. c4 d5 3. exd5 exd5 4. cxd5 Nf6 5. Bb5+ Bd7 6. Bc4 Be7 7. Ne2 0-0 8. 0-0 Bf5 9. Nbc3 Nbd7 10. d3 Nb6 11. Ng3 Bg4 12. f3 Bc8 13. Qb3 Bc5+ 14. Kh1 Bd6 15. Nge4 h6 16. Nxd6 cxd6 17. Be3 Bf5 18. Ne4 Nxc4 19. Nxf6+ Qxf6 20. dxc4 b6 21. Rad1 Rfc8 22. Qb4 Qg6 23. b3 Rc7 24. Rfe1 Rd8 25. Bd4 Bc8 26. Re2 Qf5 27. Rde1 Qd7 28. Qc3 f6 29. a4 Qf7 30. Qe3 Rb7 31. Qd3 Rf8 32. Re3 Rd8 33. Qe2 Kf8 34. Bb2 Rbd7 35. Ba3 Ba6 36. Re6 Bc8 37. Qe4 f5 38. Qf4 1-0

[Event "Haarlem AKN op 06th"]
[Site "Haarlem"]
[Date "1997.??.??"]
[Round "4"]
[White "Helvensteijn, Dennis"]
[Black "Szekely, Peter"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2215"]
[BlackElo "2455"]
[PlyCount "84"]
[EventDate "1997.06.26"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. Nf3 Bg4 6. Be2 cxd4 7. cxd4 e6 8. Nc3 Bb4 9. 0-0 Qa5 10. Ne5 Bxe2 11. Nxc6 Bxd1 12. Nxa5 Bxa5 13. Rxd1 Ne7 14. Bg5 Bxc3 15. bxc3 f6 16. Bd2 Rc8 17. Rdc1 Rc4 18. Rab1 b6 19. Rb4 Rxb4 20. cxb4 Kd7 21. Kf1 Nc6 22. Rc4 a6 23. a3 Rc8 24. Be3 Ne7 25. Rxc8 Nxc8 26. Ke2 Kc6 27. a4 Kd5 28. Kd3 Ne7 29. f3 Nf5 30. Bf2 Nd6 31. Be3 b5 32. a5 Nc4 33. Bc1 e5 34. dxe5 Nxe5+ 35. Kc3 Ng6 36. Kd3 Nh4 37. Bf4 Nxg2 38. Bg3 g5 39. h3 h5 40. Bc7 Ne1+ 41. Ke2 Nc2 42. Bd8 Ke6 0-1

[Event "Haarlem AKN op 06th"]
[Site "Haarlem"]
[Date "1997.??.??"]
[Round "5"]
[White "Helvensteijn, Dennis"]
[Black "Wunnink, Michael"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2215"]
[BlackElo "2045"]
[PlyCount "93"]
[EventDate "1997.06.26"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Bg4 6. Be2 e6 7. 0-0 Nc6 8. Be3 cxd4 9. Nxd4 Bxe2 10. Qxe2 Nxd4 11. Bxd4 Be7 12. Rd1 Qc6 13. Nd2 0-0 14. Nf3 Rfd8 15. Rd3 Nd7 16. Re1 Qa6 17. Red1 Nf8 18. b3 f6 19. c4 Rd7 20. Be3 Rad8 21. Rxd7 Rxd7 22. Rxd7 Nxd7 23. Qd2 Nf8 24. Nd4 Bc5 25. Nf5 Bxe3 26. Nxe3 Kf7 27. h3 Qc6 28. Qd4 b6 29. Qd3 Ng6 30. Qd8 Ne7 31. Qd3 h6 32. Nc2 Nf5 33. g3 g6 34. Ne3 Nd6 35. Ng4 h5 36. Nh2 Nf5 37. Nf3 Qd6 38. Qxd6 Nxd6 39. Nd2 Ke7 40. Kf1 Kd7 41. Ke2 Nb7 42. Ke3 Na5 43. f4 Nc6 44. a3 a5 45. Ne4 Ke7 46. Nc3 Kd6 47. Ne4+ 1/2-1/2

[Event "Haarlem AKN op 06th"]
[Site "Haarlem"]
[Date "1997.??.??"]
[Round "3"]
[White "Koning, Nico"]
[Black "Helvensteijn, Dennis"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1795"]
[BlackElo "2215"]
[PlyCount "56"]
[EventDate "1997.06.26"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. c5 Nc6 6. Bb5 e5 7. b4 exd4 8. Qxd4 Be7 9. Nf3 0-0 10. Bxc6 bxc6 11. 0-0 Ne4 12. Bf4 a5 13. a3 Re8 14. Nc3 Bf6 15. Be5 axb4 16. axb4 Rxa1 17. Rxa1 Nxc3 18. Qxc3 Bxe5 19. Nxe5 d4 20. Qg3 Qd5 21. f4 f6 22. Ng4 Bxg4 23. Qxg4 d3 24. Ra7 Qd4+ 25. Kf1 f5 26. Qxf5 Qc4 27. Kf2 d2 28. Qg4 Qd4+ 0-1

[Event "Haarlem AKN op 06th"]
[Site "Haarlem"]
[Date "1997.??.??"]
[Round "1"]
[White "Pelter, Yehuda Z"]
[Black "Helvensteijn, Dennis"]
[Result "1/2-1/2"]
[ECO "D02"]
[BlackElo "2215"]
[PlyCount "55"]
[EventDate "1997.06.26"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. Bf4 Bg4 4. e3 e6 5. c3 Bd6 6. Bxd6 Qxd6 7. Qa4 Bxf3 8. gxf3 Nge7 9. Nd2 a6 10. Bd3 Ra7 11. f4 Nf5 12. Bxf5 exf5 13. Qc2 g6 14. 0-0-0 b5 15. f3 0-0 16. h4 h5 17. Rdg1 Kh7 18. Rg5 Ne7 19. Nf1 f6 20. Rg2 c5 21. Rhg1 Rg8 22. Ng3 cxd4 23. Nxf5 gxf5 24. Rxg8 Nxg8 25. Qxf5+ Kh8 26. Qxh5+ Rh7 27. Qe8 Rg7 28. Qh5+ 1/2-1/2

[Event "Haarlem AKN op 06th"]
[Site "Haarlem"]
[Date "1997.??.??"]
[Round "6"]
[White "Werle, Jan"]
[Black "Helvensteijn, Dennis"]
[Result "1/2-1/2"]
[ECO "B19"]
[WhiteElo "2045"]
[BlackElo "2215"]
[PlyCount "73"]
[EventDate "1997.06.26"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. h4 h6 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Qc7 11. Bd2 Ngf6 12. 0-0-0 0-0-0 13. Ne4 e6 14. Qe2 c5 15. Nc3 a6 16. Be3 Bd6 17. g3 Rhe8 18. dxc5 Bxc5 19. Nd4 Nb6 20. Rh4 Nfd5 21. Nxd5 Rxd5 22. Nb3 Rxd1+ 23. Kxd1 Bxe3 24. Qxe3 Rd8+ 25. Kc1 e5 26. Qf3 Kb8 27. Na5 Qd7 28. Qe2 f6 29. b3 Qd5 30. Nc4 Nxc4 31. Rxc4 f5 32. Kb2 e4 33. Qe3 Qe5+ 34. c3 Rd3 35. Qb6 Qd6 36. Qxd6+ Rxd6 37. Rd4 1/2-1/2

[Event "NED-ch U21"]
[Site "Arnhem"]
[Date "1996.05.04"]
[Round "9"]
[White "Helvensteijn, Dennis"]
[Black "Van Kooten, Luuk"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2230"]
[PlyCount "99"]
[EventDate "1996.04.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 d6 6. Nf3 Nc6 7. Nc3 Nxc3 8. bxc3 e6 9. Bf4 dxe5 10. Nxe5 Qa5 11. Qd2 Be7 12. Be2 0-0 13. 0-0 Rd8 14. Qe3 Bd7 15. Qg3 Rac8 16. Nc4 Qd5 17. Rfd1 Be8 18. Ne3 Qa5 19. d5 exd5 20. Bg4 Bd7 21. Nxd5 Bxg4 22. Qxg4 Qa4 23. Qg3 Qc4 24. Be5 Bf8 25. Nf6+ Kh8 26. Qh3 gxf6 27. Bxf6+ Bg7 28. Bxd8 Rxd8 29. Rxd8+ Nxd8 30. Qd7 Bf6 31. Re1 Qxc3 32. Re8+ Kg7 33. g3 Qc1+ 34. Kg2 Qc6+ 35. Qxc6 bxc6 36. Re4 c5 37. Ra4 Nc6 38. Ra6 Nd4 39. Rxa7 Nc2 40. Rc7 Bd4 41. a4 Nb4 42. f4 Nd5 43. Rc6 c4 44. Kf3 Ne3 45. Ke4 Ba7 46. Rc7 Bb6 47. Rb7 Bc5 48. a5 c3 49. Rc7 Bb4 50. a6 1-0

[Event "NED-ch U21"]
[Site "Arnhem"]
[Date "1996.05.03"]
[Round "8"]
[White "Van der Meulen, Freerk Rinder"]
[Black "Helvensteijn, Dennis"]
[Result "1/2-1/2"]
[ECO "B12"]
[BlackElo "2230"]
[PlyCount "140"]
[EventDate "1996.04.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 c5 4. dxc5 e6 5. Be3 Nd7 6. Bb5 Qc7 7. Nf3 Ne7 8. c3 Nf5 9. Bd4 Bxc5 10. Bxc5 Qxc5 11. Bd3 Ne7 12. 0-0 Nb6 13. Nbd2 Bd7 14. Nb3 Qc7 15. Qe2 Ng6 16. g3 a6 17. Rfe1 0-0-0 18. Nbd4 Kb8 19. Rac1 Rde8 20. b3 h6 21. a4 Ne7 22. a5 Nbc8 23. b4 Na7 24. b5 axb5 25. Bxb5 Nxb5 26. Nxb5 Bxb5 27. Qxb5 Qc6 28. Qb4 Qc4 29. Qd6+ Qc7 30. Qa3 Nc6 31. Ra1 Kc8 32. a6 bxa6 33. Nd4 Kd7 34. Nb3 Ra8 35. Nc5+ Kd8 36. Reb1 Nxe5 37. Rb7 Nc4 38. Qa4 Nb6 39. Rxc7 Nxa4 40. Rd7+ Ke8 41. Rxa4 Rc8 42. Rxa6 Rxc5 43. Rb7 Rc8 44. Raa7 Rh7 45. Re7+ Kf8 46. Rxf7+ Kg8 47. Rfe7 Kf8 48. Rxe6 Rxc3 49. Rd6 Rc1+ 50. Kg2 Re1 51. Rxd5 Re7 52. Rdd7 Rxd7 53. Rxd7 h5 54. h3 Rh6 55. g4 hxg4 56. hxg4 Rc6 57. Kg3 Rc3+ 58. f3 Rb3 59. Kf4 Ra3 60. Ke4 Rb3 61. f4 Rb4+ 62. Kf5 Ra4 63. Kg5 Rb4 64. f5 Rb1 65. Kf4 Rb4+ 66. Kf3 Rb3+ 67. Ke4 Rb1 68. g5 g6 69. f6 Re1+ 70. Kf4 Rf1+ 1/2-1/2

[Event "NED-ch U21"]
[Site "Arnhem"]
[Date "1996.05.02"]
[Round "7"]
[White "Helvensteijn, Dennis"]
[Black "Dambacher, Martijn"]
[Result "1/2-1/2"]
[ECO "C02"]
[WhiteElo "2230"]
[PlyCount "84"]
[EventDate "1996.04.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 Nc6 5. Bd3 cxd4 6. Nbd2 f6 7. Qe2 fxe5 8. Nxe5 Nf6 9. f4 Bd6 10. 0-0 0-0 11. a3 Qc7 12. Ndf3 Bd7 13. b4 a6 14. Bd2 Rae8 15. Rae1 Re7 16. Qf2 Ne4 17. Bxe4 dxe4 18. Rxe4 Bxe5 19. fxe5 Ref7 20. Rfe1 Ne7 21. Qxd4 Bc6 22. Ng5 Bxe4 23. Qxe4 Rf5 24. g4 Rxg5 25. Bxg5 Ng6 26. Rf1 Qxe5 27. Rxf8+ Kxf8 28. Qf3+ Ke8 29. Bd2 Qd4+ 30. Be3 Ne5 31. Qf4 Qd1+ 32. Kg2 Qxc2+ 33. Kg3 Qc3 34. Qd4 Qxd4 35. Bxd4 Nc4 36. Bxg7 Kf7 37. Bc3 Nxa3 38. Kf4 Nc4 39. Ke4 b5 40. h4 Ke7 41. g5 Kf7 42. h5 Nd6+ 1/2-1/2

[Event "NED-ch U21"]
[Site "Arnhem"]
[Date "1996.05.01"]
[Round "6"]
[White "Do, Khoa"]
[Black "Helvensteijn, Dennis"]
[Result "0-1"]
[ECO "B14"]
[BlackElo "2230"]
[PlyCount "62"]
[EventDate "1996.04.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. Bg5 dxc4 7. Bxf6 exf6 8. Bxc4 Nc6 9. d5 Ne5 10. Qe2 Bh6 11. Bb5+ Kf8 12. Nh3 a6 13. Ba4 Bg4 14. Qe4 Bf5 15. Qb4+ Kg7 16. 0-0 b5 17. Bb3 Bxh3 18. gxh3 Nd3 19. Qh4 Bf4 20. Rad1 h5 21. Rxd3 g5 22. Qxf4 gxf4 23. d6 Re8 24. Rfd1 Re5 25. Kh1 b4 26. Nb1 Re2 27. Nd2 Qb6 28. d7 Qxf2 29. Rg1+ Kf8 30. Nf1 Rd8 31. Ba4 Re1 0-1

[Event "NED-ch U21"]
[Site "Arnhem"]
[Date "1996.04.30"]
[Round "5"]
[White "Helvensteijn, Dennis"]
[Black "Solleveld, Maarten"]
[Result "1/2-1/2"]
[ECO "C56"]
[WhiteElo "2230"]
[PlyCount "89"]
[EventDate "1996.04.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Nxe4 Be6 10. Bd2 Bb4 11. Nxd4 Nxd4 12. c3 0-0-0 13. cxb4 Qf5 14. Rc1 Bd5 15. Ng3 Qg6 16. Be3 Nc6 17. Qa4 Qd6 18. a3 Qf6 19. b5 Ne5 20. Bf4 Rhe8 21. Rxe5 Rxe5 22. Qa5 Bc6 23. Bxe5 Qxe5 24. Qxa7 Qxb5 25. Qa8+ Kd7 26. Rd1+ Bd5 27. Qa7 c6 28. b4 Re8 29. Qd4 g6 30. Ne4 Kc7 31. Nf6 Re6 32. Qf4+ Kc8 33. Nxd5 Qxd5 34. Rf1 f5 35. h3 Re7 36. Qc1 Qe5 37. Qc2 Rd7 38. Qb3 Kb8 39. Qg8+ Ka7 40. Qb3 Kb8 41. a4 Qd5 42. Qe3 Qd4 43. Qb3 Qd5 44. Qg3+ Qd6 45. Qb3 1/2-1/2

[Event "NED-ch U21"]
[Site "Arnhem"]
[Date "1996.04.29"]
[Round "4"]
[White "Van Delft, Merijn"]
[Black "Helvensteijn, Dennis"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "2185"]
[BlackElo "2230"]
[PlyCount "100"]
[EventDate "1996.04.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 Bg4 7. cxd5 Nxd5 8. Qb3 Bxf3 9. gxf3 Nb6 10. Be3 e6 11. 0-0-0 Bb4 12. d5 Nxd5 13. Nxd5 exd5 14. Bb5 Be7 15. Rxd5 Qc8 16. Kb1 0-0 17. h4 Qe6 18. Rhd1 a6 19. Bd3 g6 20. Be4 Rad8 21. h5 b5 22. hxg6 hxg6 23. Rxd8 Rxd8 24. Rxd8+ Nxd8 25. Qxe6 Nxe6 26. Bb7 Nc5 27. Bc8 a5 28. Kc2 Kf8 29. Bh3 Ke8 30. Bf1 b4 31. b3 Kd7 32. Bb5+ Kd8 33. Bc4 f6 34. Bf7 g5 35. f4 Kd7 36. fxg5 fxg5 37. f3 Kd6 38. Bd4 Kc6 39. Bc4 a4 40. bxa4 Nxa4 41. Kd3 Nc3 42. Bb3 Kb5 43. Ba7 Bf6 44. Ke3 Be7 45. Bb8 Bc5+ 46. Kd3 Be7 47. Be5 Kc5 48. Ke3 Nb5 49. Kf2 Nd4 50. Kg3 Bd6 1/2-1/2

[Event "NED-ch U21"]
[Site "Arnhem"]
[Date "1996.04.27"]
[Round "3"]
[White "Helvensteijn, Dennis"]
[Black "Bakker, Sven"]
[Result "1/2-1/2"]
[ECO "C00"]
[WhiteElo "2230"]
[PlyCount "64"]
[EventDate "1996.04.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e6 2. c4 d5 3. exd5 exd5 4. cxd5 Nf6 5. Bb5+ Nbd7 6. Nc3 Be7 7. Nf3 0-0 8. 0-0 Nb6 9. h3 a6 10. Be2 Nbxd5 11. d4 h6 12. Ne5 Bf5 13. Bd3 Bxd3 14. Qxd3 Nb6 15. Rd1 Nfd5 16. Qf3 Bf6 17. Ng4 Bg5 18. Ne5 Bxc1 19. Raxc1 c6 20. Ne4 Rb8 21. a3 Qe7 22. Re1 Rfd8 23. Ng3 Qf6 24. Nf5 Kf8 25. h4 Re8 26. Qg4 Rbd8 27. Re4 Re6 28. Rce1 Rde8 29. Nd6 R8e7 30. Ndxf7 Kg8 31. Nd8 Rd6 32. Ndf7 Rde6 1/2-1/2

[Event "NED-ch U21"]
[Site "Arnhem"]
[Date "1996.04.26"]
[Round "2"]
[White "Schrik, Rachid"]
[Black "Helvensteijn, Dennis"]
[Result "1-0"]
[ECO "D07"]
[BlackElo "2230"]
[PlyCount "59"]
[EventDate "1996.04.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. Nc3 dxc4 4. d5 Ne5 5. f4 Nd7 6. e4 Nb6 7. a4 e5 8. a5 Nd7 9. Bxc4 Ngf6 10. Nf3 Bd6 11. 0-0 Qe7 12. f5 Bb4 13. Qe2 Nc5 14. Bb5+ Bd7 15. Bxd7+ Nfxd7 16. Nb5 Nf6 17. Qc4 Na6 18. Kh1 0-0 19. Bg5 Rfc8 20. Nc3 c6 21. dxc6 Rxc6 22. Qb3 Bxc3 23. bxc3 Rac8 24. Rab1 R8c7 25. Bxf6 Qxf6 26. Rbd1 Rxc3 27. Qb5 h6 28. Qe8+ Kh7 29. Rd8 Qxd8 30. Qxd8 1-0

[Event "NED-ch U21"]
[Site "Arnhem"]
[Date "1996.04.25"]
[Round "1"]
[White "Helvensteijn, Dennis"]
[Black "De Rover, Yong Hoon"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2230"]
[PlyCount "80"]
[EventDate "1996.04.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 Nc6 6. Nc3 Nxc3 7. bxc3 d6 8. f4 dxe5 9. fxe5 Bf5 10. Nf3 e6 11. Bd3 Bg6 12. 0-0 Be7 13. Bxg6 hxg6 14. c4 Qc7 15. Bf4 0-0-0 16. d5 g5 17. Nxg5 Bxg5 18. Bxg5 Qxe5 19. Bxd8 Qxh2+ 20. Kf2 Nxd8 21. Qf3 Qh4+ 22. g3 Qd4+ 23. Kg2 Qd2+ 24. Qf2 Qd3 25. Rae1 exd5 26. Re7 Nc6 27. Rxf7 dxc4 28. Rf8+ Rxf8 29. Qxf8+ Kc7 30. Qxg7+ Kb6 31. Qb2+ Ka6 32. Rf3 Qe4 33. Kf2 b5 34. Qa3+ Kb6 35. Qe3+ Qxe3+ 36. Kxe3 b4 37. g4 c3 38. g5 Ne5 39. Rf6+ Kc5 40. g6 Ng4+ 0-1

[Event "NED-chT 9697"]
[Site "Netherlands"]
[Date "1996.??.??"]
[Round "?"]
[White "Bosboom, Manuel"]
[Black "Helvensteijn, Dennis"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "2425"]
[BlackElo "2230"]
[PlyCount "61"]
[EventDate "1996.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. Nf3 Bg4 4. cxd5 Bxf3 5. gxf3 Qxd5 6. e3 e5 7. Nc3 Bb4 8. Bd2 Bxc3 9. bxc3 exd4 10. cxd4 Nge7 11. Rg1 0-0-0 12. Qb3 Qxf3 13. Rb1 b6 14. Rxg7 Rhf8 15. Rc1 Rd6 16. Rg3 Qf6 17. Qa4 Kb8 18. Bg2 Qe6 19. Kf1 f5 20. f4 Rfd8 21. Qc2 Nd5 22. a4 a5 23. Qc4 Nde7 24. Rg7 Qxc4+ 25. Rxc4 h6 26. Be1 Re8 27. Bh4 Rg6 28. Rxg6 Nxg6 29. Bxc6 Rxe3 30. Bf2 Rd3 31. d5 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "2"]
[White "De Pender, Gertjan"]
[Black "Helvensteijn, Dennis"]
[Result "0-1"]
[ECO "C09"]
[BlackElo "2230"]
[PlyCount "62"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Bb5+ Nc6 6. Ngf3 Bd6 7. dxc5 Bxc5 8. 0-0 Nge7 9. Nb3 Bb6 10. h3 0-0 11. Bg5 a6 12. Bd3 Be6 13. c3 Qd6 14. Qd2 Bc7 15. Bh4 Bb6 16. Kh1 Qd7 17. Nbd4 Nxd4 18. cxd4 Nc6 19. Qf4 Bc7 20. Qg5 Bxh3 21. Qh5 h6 22. Bf6 Bg4 23. Qh4 Bf5 24. Ne5 Nxe5 25. dxe5 Bxd3 26. Rad1 Bg6 27. f4 gxf6 28. exf6 Qf5 29. Rxd5 Qxd5 30. f5 Kh7 31. fxg6+ fxg6 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "9"]
[White "Helvensteijn, Dennis"]
[Black "Buzing, Pieter C"]
[Result "1/2-1/2"]
[ECO "C02"]
[WhiteElo "2230"]
[PlyCount "28"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 cxd4 5. Bd3 Nc6 6. 0-0 Nge7 7. Bf4 Ng6 8. Bg3 Be7 9. Nbd2 f5 10. Nb3 0-0 11. h3 Qc7 12. Qe2 Nb4 13. Nbxd4 Nxd3 14. cxd3 Qb6 1/2-1/2

[Event "NED-chT 9697"]
[Site "Netherlands"]
[Date "1996.??.??"]
[Round "7"]
[White "Helvensteijn, Dennis"]
[Black "De Graaff, RAG"]
[Result "0-1"]
[ECO "C31"]
[WhiteElo "2230"]
[PlyCount "44"]
[EventDate "1996.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. exd5 c6 4. d3 exf4 5. Bxf4 cxd5 6. Nf3 Bd6 7. Bd2 Ne7 8. d4 0-0 9. Bd3 Bf5 10. Bxf5 Nxf5 11. 0-0 Nc6 12. c3 Qd7 13. Qc2 Rae8 14. Qd3 Bb8 15. Na3 Nd6 16. Rae1 Ne4 17. Nc2 f5 18. c4 a6 19. cxd5 Qxd5 20. Ne3 Qb5 21. Qxb5 axb5 22. d5 Ba7 0-1

[Event "Soest op"]
[Site "Soest"]
[Date "1996.??.??"]
[Round "1"]
[White "Helvensteijn, Dennis"]
[Black "Dekker, Jop"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2230"]
[PlyCount "53"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Bb5+ Bd7 4. Bc4 Bg4 5. Ne2 Nxd5 6. 0-0 e5 7. Qe1 Nb6 8. Bb3 Nc6 9. f4 Bc5+ 10. Kh1 e4 11. Ng3 f5 12. d3 Qe7 13. dxe4 0-0-0 14. c3 Rhe8 15. e5 g5 16. Bc2 gxf4 17. Bxf4 Nxe5 18. Bxe5 Qxe5 19. Qxe5 Rxe5 20. h3 Rd6 21. Na3 Be3 22. Nxf5 Bxf5 23. Rxf5 Rxf5 24. Bxf5+ Kd8 25. Nc2 Bf4 26. Nd4 Bg3 27. Bxh7 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "3"]
[White "Helvensteijn, Dennis"]
[Black "Huppertz, Andrea"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2230"]
[PlyCount "53"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. c3 g6 3. d4 e6 4. e5 d5 5. exd6 Qxd6 6. Nf3 Nc6 7. Na3 cxd4 8. Nb5 Qb8 9. Nbxd4 Nge7 10. Bb5 Bd7 11. Nxc6 Bxc6 12. Qd4 Rg8 13. Bf4 Qd8 14. Qa4 Qb6 15. Nd4 Rc8 16. Be3 a6 17. Bxc6+ Nxc6 18. 0-0 Qc7 19. Rad1 Bd6 20. h3 g5 21. b3 Ke7 22. Rfe1 h5 23. Nf5+ Kf6 24. Nxd6 Ra8 25. Ne4+ Kf5 26. Ng3+ Kg6 27. Qe4+ 1-0

[Event "Soest op"]
[Site "Soest"]
[Date "1996.??.??"]
[Round "7"]
[White "Helvensteijn, Dennis"]
[Black "Jonkman, Harmen"]
[Result "1-0"]
[ECO "C56"]
[WhiteElo "2230"]
[BlackElo "2325"]
[PlyCount "69"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Nxe4 Be6 10. Bd2 Qf5 11. Bg5 h6 12. Bh4 Bc5 13. b4 Bb6 14. a4 a6 15. b5 axb5 16. axb5 Rxa1 17. Qxa1 Na5 18. Nxd4 Bxd4 19. Qxd4 0-0 20. Bf6 Qg6 21. Re3 c5 22. Qc3 b6 23. Rg3 Bg4 24. Bxg7 Rd8 25. h3 f5 26. Nf6+ Kxg7 27. Nxg4+ Kf8 28. Nf6 Rd1+ 29. Kh2 Qf7 30. Qe5 Nb7 31. Rg8+ Qxg8 32. Qe8+ Kg7 33. Nxg8 Nd6 34. Qe6 Nxb5 35. Qxf5 1-0

[Event "NED-chT 9697"]
[Site "Netherlands"]
[Date "1996.??.??"]
[Round "?"]
[White "Helvensteijn, Dennis"]
[Black "Klip, Hans"]
[Result "1/2-1/2"]
[ECO "C56"]
[WhiteElo "2230"]
[BlackElo "2305"]
[PlyCount "58"]
[EventDate "1996.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Nxe4 Be6 10. Bd2 Bb4 11. Nxd4 Nxd4 12. c3 0-0-0 13. cxb4 Qd5 14. Bc3 Bf5 15. Ng3 Bg6 16. Rc1 Ne6 17. Qxd5 Rxd5 18. Be5 Rf8 19. Rcd1 Rxd1 20. Rxd1 Re8 21. f4 f6 22. Bxf6 gxf6 23. f5 Bf7 24. fxe6 Rxe6 25. a3 Bg6 26. Kf2 b6 27. Rd2 Kb7 28. Ne2 Re5 29. Nc3 Kc6 1/2-1/2

[Event "NED-chT 9697"]
[Site "Netherlands"]
[Date "1996.??.??"]
[Round "?"]
[White "Helvensteijn, Dennis"]
[Black "Lacrosse, Marc"]
[Result "1-0"]
[ECO "C44"]
[WhiteElo "2230"]
[BlackElo "2220"]
[PlyCount "63"]
[EventDate "1996.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. 0-0 d6 6. h3 Nf6 7. c3 dxc3 8. Nxc3 h6 9. Bf4 0-0 10. e5 dxe5 11. Nxe5 Qd4 12. Qxd4 Nxd4 13. Be3 Bb6 14. Rfd1 Ne6 15. Bxb6 axb6 16. Nb5 c6 17. Nd6 g5 18. Nexf7 b5 19. Bb3 Nc5 20. Nxh6+ Kh7 21. Nhf7 Nxb3 22. axb3 Rxa1 23. Rxa1 Rg8 24. Ra7 g4 25. hxg4 Nxg4 26. Nxc8 Rxc8 27. Rxb7 Kg6 28. f3 Ne3 29. Kf2 Nd1+ 30. Ke2 Nxb2 31. Kd2 Rf8 32. Kc2 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "1"]
[White "Helvensteijn, Dennis"]
[Black "Meyles, Luuk"]
[Result "1/2-1/2"]
[ECO "E87"]
[WhiteElo "2230"]
[PlyCount "64"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 g6 2. d4 d6 3. c4 Nf6 4. Nc3 Bg7 5. f3 0-0 6. Be3 e5 7. d5 Ne8 8. g4 Bh6 9. Qd2 Bxe3 10. Qxe3 Qh4+ 11. Qf2 Qxf2+ 12. Kxf2 Nd7 13. Ke3 a5 14. Nge2 Nc5 15. Ng3 f6 16. h4 Kf7 17. Be2 Ke7 18. b3 Ng7 19. h5 f5 20. exf5 gxf5 21. h6 Ne8 22. gxf5 Bxf5 23. Nxf5+ Rxf5 24. Rag1 Rf7 25. Nd1 Nf6 26. Nf2 c6 27. dxc6 bxc6 28. Nh3 Ne6 29. Bd3 Rg8 30. Bf5 Nd4 31. Bd3 Ne6 32. Bf5 Nd4 1/2-1/2

[Event "Soest op"]
[Site "Soest"]
[Date "1996.??.??"]
[Round "5"]
[White "Helvensteijn, Dennis"]
[Black "Muis, Gerrit Meine"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2230"]
[PlyCount "27"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. Nf3 Bg4 6. Be2 e6 7. 0-0 Nf6 8. Be3 Rd8 9. dxc5 Bxc5 10. Qxd5 Rxd5 11. c4 Bxe3 12. cxd5 Nxd5 13. fxe3 Nxe3 14. Rc1 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "4"]
[White "Helvensteijn, Dennis"]
[Black "Van Beek, Lucien"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2230"]
[BlackElo "2145"]
[PlyCount "38"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. c3 d6 3. d4 Nf6 4. dxc5 Nc6 5. Bc4 Nxe4 6. Bxf7+ Kxf7 7. Qd5+ e6 8. Qxe4 d5 9. Qf4+ Qf6 10. Nf3 Bxc5 11. Qc7+ Qe7 12. Ne5+ Ke8 13. Qxe7+ Kxe7 14. Bg5+ Ke8 15. Nd3 Bd6 16. f4 Rf8 17. Rf1 b6 18. Rf3 Ba6 19. g3 h6 0-1

[Event "Soest op"]
[Site "Soest"]
[Date "1996.??.??"]
[Round "8"]
[White "Helvensteijn, Dennis"]
[Black "Wojtkiewicz, Aleksander"]
[Result "1/2-1/2"]
[ECO "A42"]
[WhiteElo "2230"]
[BlackElo "2550"]
[PlyCount "38"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. c4 d6 4. Nc3 e5 5. d5 f5 6. exf5 gxf5 7. Qh5+ Kf8 8. Bd3 Nf6 9. Qh3 f4 10. Bf5 Bxf5 11. Qxf5 Qd7 12. Qxd7 Nbxd7 13. g3 fxg3 14. hxg3 c6 15. Be3 cxd5 16. cxd5 h5 17. Nf3 Bh6 18. Nh4 Bxe3 19. fxe3 Rg8 1/2-1/2

[Event "Soest op"]
[Site "Soest"]
[Date "1996.??.??"]
[Round "3"]
[White "Helvensteijn, Dennis"]
[Black "Ye, Rongguang"]
[Result "0-1"]
[ECO "C56"]
[WhiteElo "2230"]
[BlackElo "2475"]
[PlyCount "106"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Nxe4 Be6 10. Bd2 Qf5 11. Bg5 h6 12. Bh4 Qh5 13. Bf6 Qg6 14. Nh4 Qh7 15. Qh5 Kd7 16. Rad1 Re8 17. Bxd4 Kc8 18. Qb5 a6 19. Qa4 Be7 20. Nf3 Bf5 21. Bc3 Bb4 22. Bxb4 Bxe4 23. Nd4 Nxd4 24. Rxd4 Bc6 25. Rxe8+ Rxe8 26. Qb3 Qg6 27. f3 Re2 28. Rg4 Qxc2 29. Qxc2 Rxc2 30. Bc3 g6 31. Rd4 Bd7 32. a3 b6 33. Rd2 Rc1+ 34. Kf2 Be6 35. Re2 Bc4 36. Rd2 Kb7 37. Rd7 Kc6 38. Rd4 Be6 39. Rd2 Kb5 40. Re2 Bc4 41. Rd2 Ka4 42. Rd7 c5 43. Rd6 Kb5 44. Rd8 Be6 45. Rd6 Rc2+ 46. Rd2 Rc1 47. Rd6 h5 48. Bf6 Rc2+ 49. Kg3 Bb3 50. Bd8 Rxb2 51. Rxb6+ Kc4 52. Rxa6 Rd2 53. Be7 Rd7 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "7"]
[White "Helvensteijn, Dennis"]
[Black "Zult, Daan"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2230"]
[PlyCount "23"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 b6 6. Nc3 Nxc3 7. bxc3 Qc7 8. Bd2 Bb7 9. f4 e6 10. Nf3 d6 11. Bd3 Ba6 12. Bxa6 1-0

[Event "NED-chT 9697"]
[Site "Netherlands"]
[Date "1996.??.??"]
[Round "4"]
[White "Jongsma, Wietze"]
[Black "Helvensteijn, Dennis"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2175"]
[BlackElo "2230"]
[PlyCount "87"]
[EventDate "1996.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 c5 4. Ngf3 Nc6 5. g3 Nf6 6. Bg2 Be7 7. 0-0 0-0 8. Re1 Re8 9. c3 Qc7 10. e5 Nd7 11. Qe2 b5 12. Nf1 Rb8 13. Bf4 a5 14. h4 Ba6 15. N1h2 a4 16. Ng5 h6 17. Nh3 Nf8 18. h5 Nh7 19. Ng4 Kh8 20. Rad1 b4 21. Qd2 Qb6 22. Rc1 bxc3 23. bxc3 a3 24. Bf1 Qa5 25. Rb1 d4 26. c4 Qxd2 27. Bxd2 Rb2 28. Rxb2 axb2 29. Rb1 Rb8 30. f4 Nf8 31. Nhf2 Nd7 32. Nd1 f5 33. exf6 Nxf6 34. Nxf6 Bxf6 35. Rxb2 Rxb2 36. Nxb2 Kg8 37. Kf2 Kf7 38. Bg2 Nd8 39. Be4 Ke7 40. Ba5 Kd6 41. Na4 Nf7 42. Bb6 e5 43. Nxc5 Bc8 44. Nb3 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "8"]
[White "Lytchak, Alexander"]
[Black "Helvensteijn, Dennis"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "2265"]
[BlackElo "2230"]
[PlyCount "43"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. Nf3 Bg4 4. Nc3 Nf6 5. cxd5 Nxd5 6. e4 Bxf3 7. gxf3 Nxc3 8. bxc3 e5 9. Qb3 Qd7 10. Bh3 Qd6 11. d5 Nd8 12. Rg1 g6 13. c4 Qb4+ 14. Ke2 Qxb3 15. axb3 Bd6 16. Bd2 c5 17. Ra4 b6 18. Ra6 Nb7 19. Rga1 Ke7 20. Rxa7 Rxa7 21. Rxa7 Rb8 22. Bc8 1-0

[Event "Soest op"]
[Site "Soest"]
[Date "1996.??.??"]
[Round "9"]
[White "Rychagov, Mikhail"]
[Black "Helvensteijn, Dennis"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2495"]
[BlackElo "2230"]
[PlyCount "31"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 c5 6. Be3 Nd7 7. 0-0 Ne7 8. c4 dxc4 9. Na3 Nd5 10. Nxc4 b5 11. Bg5 Qc7 12. Ne3 Nxe3 13. Bxe3 c4 14. a4 b4 15. Rc1 c3 16. Qb3 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "5"]
[White "Smits, Mark"]
[Black "Helvensteijn, Dennis"]
[Result "0-1"]
[ECO "C02"]
[BlackElo "2230"]
[PlyCount "95"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 Nc6 5. Bd3 cxd4 6. 0-0 Nge7 7. Bf4 Qb6 8. Nbd2 Bd7 9. Nb3 Ng6 10. Bg3 Rc8 11. a3 a5 12. Qd2 a4 13. Nc1 Na5 14. h4 Nc4 15. Bxc4 dxc4 16. h5 c3 17. bxc3 dxc3 18. Qe2 Ne7 19. Nd3 Nf5 20. Bf4 Nd4 21. Qe3 Nxf3+ 22. Qxf3 Qc6 23. Qg4 Qe4 24. Rfe1 Qc4 25. Rab1 b5 26. Nb4 g6 27. Qf3 Be7 28. Re4 Qc7 29. Bh6 Bxb4 30. Rbxb4 Bc6 31. Qf6 Rg8 32. Red4 Qe7 33. Qxe7+ Kxe7 34. Bg5+ Ke8 35. h6 f5 36. Rd6 Kf7 37. Rbd4 Rgf8 38. f4 Rc7 39. Rxc6 Rxc6 40. Rd7+ Ke8 41. Re7+ Kd8 42. Rxh7+ Kc8 43. Be7 Rc7 44. Rg7 Rh8 45. Bd6 Rxg7 46. hxg7 Rg8 47. Bf8 Rxg7 48. Bxg7 0-1

[Event "Soest op"]
[Site "Soest"]
[Date "1996.??.??"]
[Round "2"]
[White "Smits, Mark"]
[Black "Helvensteijn, Dennis"]
[Result "0-1"]
[ECO "B13"]
[BlackElo "2230"]
[PlyCount "68"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nf6 5. c3 g6 6. Bf4 Nc6 7. Na3 Bg7 8. Nf3 0-0 9. 0-0 Bg4 10. h3 Nh5 11. Bh2 Bxf3 12. Qxf3 e5 13. dxe5 Bxe5 14. Bxe5 Nxe5 15. Qe3 Re8 16. Rfe1 Re6 17. Be2 Nf6 18. Nb5 Nc6 19. Qg3 Ne4 20. Qh2 Rf6 21. Qc7 Qf8 22. Rad1 a6 23. Nd4 Re8 24. Nxc6 bxc6 25. Bf3 Ng5 26. Bg4 h5 27. Bd7 Rxe1+ 28. Rxe1 Qc5 29. Re3 Ne4 30. b4 Qc4 31. Qe5 Qxa2 32. Rxe4 Qxf2+ 33. Kh2 dxe4 34. Bxc6 e3 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "6"]
[White "Van Delft, Merijn"]
[Black "Helvensteijn, Dennis"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2185"]
[BlackElo "2230"]
[PlyCount "84"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. Bg5 Nf6 4. e3 a6 5. Nbd2 Bf5 6. c3 e6 7. Be2 Be7 8. 0-0 h6 9. Bh4 0-0 10. Re1 Re8 11. Bf1 Ne4 12. Bxe7 Qxe7 13. Nxe4 Bxe4 14. Nd2 Bg6 15. Qb3 b5 16. e4 Na5 17. Qd1 Qd7 18. b4 Nc4 19. Bxc4 bxc4 20. e5 a5 21. a3 axb4 22. axb4 Qc6 23. Qc1 Rxa1 24. Qxa1 Ra8 25. Qb2 Qa4 26. Rc1 c6 27. h4 Kf8 28. f3 Qa2 29. Qxa2 Rxa2 30. Nf1 Ke7 31. Ng3 Kd7 32. h5 Bd3 33. Nh1 Kc7 34. g4 Kb6 35. Ng3 Kb5 36. f4 Ka4 37. g5 Kb3 38. f5 hxg5 39. f6 gxf6 40. exf6 Kb2 41. Re1 Kxc3 42. h6 Kxd4 0-1

[Event "Soest op"]
[Site "Soest"]
[Date "1996.??.??"]
[Round "6"]
[White "Verwoert, Jef"]
[Black "Helvensteijn, Dennis"]
[Result "0-1"]
[ECO "C07"]
[BlackElo "2230"]
[PlyCount "70"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nc3 d5 2. e4 dxe4 3. Nxe4 Nd7 4. Bc4 e6 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. 0-0 Be7 8. d4 0-0 9. Ne5 c5 10. dxc5 Qc7 11. Qe2 Qxc5 12. Bb3 b6 13. Nd3 Qc6 14. Ne5 Qc5 15. Nd3 Qf5 16. Qe5 Qxe5 17. Nxe5 Bb7 18. Nd3 Rfd8 19. Bg5 Rac8 20. Rad1 h6 21. Bh4 Bd5 22. Nc1 Bxb3 23. Rxd8+ Bxd8 24. cxb3 Rc2 25. Rd1 Be7 26. Nd3 g5 27. Bg3 Nd5 28. Be5 f6 29. Ne1 Rc6 30. Bd4 Kf7 31. Kf1 b5 32. a3 a5 33. Rd2 b4 34. a4 Rc1 35. Rc2 Rd1 0-1

[Event "Soest op"]
[Site "Soest"]
[Date "1996.??.??"]
[Round "4"]
[White "Visser, Paul Robert"]
[Black "Helvensteijn, Dennis"]
[Result "0-1"]
[ECO "B14"]
[BlackElo "2230"]
[PlyCount "44"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. Nf3 Bg7 7. cxd5 0-0 8. Bc4 Nbd7 9. 0-0 Nb6 10. Bb3 Nfxd5 11. Re1 Bf5 12. Nh4 Be6 13. Nf3 Nc7 14. Bg5 Re8 15. Ne4 Bxb3 16. Qxb3 Ne6 17. Nc5 Nxd4 18. Nxd4 Qxd4 19. Rxe7 Rxe7 20. Bxe7 Re8 21. Rd1 Qe5 22. Qb5 Qxe7 0-1

[Event "NED-chT 9697"]
[Site "Netherlands"]
[Date "1996.??.??"]
[Round "?"]
[White "Wemmers, Xander"]
[Black "Helvensteijn, Dennis"]
[Result "1-0"]
[ECO "B01"]
[BlackElo "2230"]
[PlyCount "69"]
[EventDate "1996.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Bc4 Nf6 5. d4 c6 6. Bd2 Bf5 7. Nf3 Qc7 8. Qe2 e6 9. 0-0-0 Nbd7 10. Nh4 Bg6 11. Nxg6 hxg6 12. h4 0-0-0 13. Bg5 Bd6 14. g3 Rde8 15. Ne4 Nxe4 16. Qxe4 Rhf8 17. Be3 Nb6 18. Bb3 Nd5 19. Bd2 f5 20. Qd3 Nf6 21. Kb1 Ng4 22. Qe2 e5 23. d5 cxd5 24. Bxd5 e4 25. Bc3 Bc5 26. Bd4 Kb8 27. f3 Bxd4 28. Rxd4 Nf6 29. Bb3 Qxg3 30. fxe4 Nxe4 31. Qb5 Qf4 32. Rhd1 a6 33. Qb4 Qe5 34. Rd7 Nc5 35. R7d5 1-0

[Event "Soest op"]
[Site "Soest"]
[Date "1995.??.??"]
[Round "8"]
[White "De Haan, Eric"]
[Black "Helvensteijn, Dennis"]
[Result "1/2-1/2"]
[ECO "D55"]
[PlyCount "93"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Bg5 Be7 5. Nc3 0-0 6. e3 h6 7. Bxf6 Bxf6 8. Qc2 b6 9. 0-0-0 Bb7 10. cxd5 exd5 11. h4 Bc8 12. Ne5 c6 13. Bd3 b5 14. Rdg1 Bxe5 15. dxe5 Nd7 16. f4 Nc5 17. Bh7+ Kh8 18. Ne2 Qb6 19. Nd4 Ne6 20. Rd1 Nxd4 21. exd4 Bg4 22. Rd2 Qa6 23. a3 b4 24. Bd3 Qb6 25. axb4 Qxd4 26. Rf1 Qe3 27. Qc5 Qxc5+ 28. bxc5 Rab8 29. f5 Rfe8 30. Rf4 h5 31. f6 Rxe5 32. fxg7+ Kxg7 33. Rdf2 Rb7 34. Kc2 Re1 35. Rf6 Ree7 36. Rd6 Re6 37. Rd8 Rf6 38. Rxf6 Kxf6 39. Kc3 Ke5 40. g3 Re7 41. b4 Bf5 42. Bxf5 Kxf5 43. b5 cxb5 44. Rxd5+ Re5 45. Kd4 Rxd5+ 46. Kxd5 Kf6 47. Kd6 1/2-1/2

[Event "Soest op"]
[Site "Soest"]
[Date "1995.??.??"]
[Round "6"]
[White "Helvensteijn, Dennis"]
[Black "Abcouwer, Jan Bart"]
[Result "1-0"]
[ECO "C00"]
[PlyCount "47"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e6 2. c4 d5 3. exd5 exd5 4. cxd5 Nf6 5. Bb5+ Nbd7 6. Nc3 a6 7. Ba4 b5 8. Bb3 Nb6 9. Nf3 Nfxd5 10. 0-0 c5 11. Re1+ Be6 12. Ne5 c4 13. Nxd5 Nxd5 14. Bxc4 Bc5 15. d4 Bb6 16. Bg5 Qd6 17. Nxf7 Kxf7 18. Qf3+ Kg6 19. Rxe6+ Qxe6 20. Bxd5 Qd7 21. Be4+ Kxg5 22. h4+ Kh6 23. Qf4+ g5 24. Qxg5# 1-0

[Event "Alphen aan den Rijn op"]
[Site "Alphen aan den Rijn"]
[Date "1995.??.??"]
[Round "7"]
[White "Helvensteijn, Dennis"]
[Black "Bey, HJJ"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "101"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. dxc5 Qxc5 6. Be3 Qa5 7. Nd2 Nf6 8. Ne4 Qc7 9. Be2 e6 10. Bf3 Be7 11. Ne2 0-0 12. 0-0 Rd8 13. Qc2 Na5 14. Nd2 Nc4 15. Bf4 Bd6 16. Bxd6 Nxd6 17. Rfd1 Bd7 18. Ng3 Bc6 19. Be2 a6 20. Bd3 Rac8 21. Ndf1 Bb5 22. Bxb5 Nxb5 23. Qe2 h6 24. Ne3 Na7 25. Ng4 Nxg4 26. Qxg4 Qe7 27. Nh5 g6 28. Nf4 Kh7 29. Re1 Rd6 30. h4 e5 31. Qe2 Nc6 32. h5 g5 33. Qe4+ Kg7 34. Nd5 Qe6 35. Ne3 Rd7 36. Rad1 Rcd8 37. Rxd7 Rxd7 38. a4 Kh8 39. b4 Kg7 40. b5 axb5 41. axb5 Na7 42. c4 Nc8 43. Nf5+ Kg8 44. Qxe5 Qxe5 45. Rxe5 Rd1+ 46. Kh2 Kh7 47. Rc5 Nd6 48. Nxd6 Rxd6 49. Rc7 b6 50. Rxf7+ Kg8 51. Rc7 1-0

[Event "Alphen aan den Rijn op"]
[Site "Alphen aan den Rijn"]
[Date "1995.??.??"]
[Round "5"]
[White "Helvensteijn, Dennis"]
[Black "Coppoolse, Eric"]
[Result "1/2-1/2"]
[ECO "B22"]
[PlyCount "110"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 e6 6. Bd3 Nc6 7. 0-0 Be7 8. dxc5 Qxc5 9. Qc2 0-0 10. Bg5 h6 11. Bh4 Qh5 12. Bxf6 Bxf6 13. Nbd2 Be7 14. Rfe1 b6 15. Rad1 Bb7 16. Ne4 Rac8 17. Ng3 Qa5 18. a4 Rfd8 19. Be4 Qc5 20. Rxd8+ Nxd8 21. Rd1 Bxe4 22. Nxe4 Qc7 23. Nd4 a6 24. Qe2 Qb7 25. Qf3 Nc6 26. Ng3 Qc7 27. Nxc6 Qxc6 28. Qxc6 Rxc6 29. Ne2 Kf8 30. Kf1 Ke8 31. Ke1 Bf6 32. Kd2 Kd7 33. Kc2+ Kc7 34. b4 Rc4 35. g3 Re4 36. Rd2 Re5 37. h4 Be7 38. Nd4 g6 39. Kd3 Re1 40. Kc2 Ra1 41. Kb3 Bd6 42. Nc2 Rf1 43. Ne3 Rb1+ 44. Ka2 Re1 45. Kb2 f5 46. Nc4 Be7 47. Kc2 f4 48. gxf4 Bxh4 49. Ne5 g5 50. Nf3 Rh1 51. Re2 gxf4 52. Nxh4 Rxh4 53. Rxe6 Rh2 54. Kd3 h5 55. f3 Rf2 1/2-1/2

[Event "Bussum op"]
[Site "Bussum"]
[Date "1995.??.??"]
[Round "2"]
[White "Helvensteijn, Dennis"]
[Black "Glek, Igor Vladimirovich"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "2085"]
[BlackElo "2590"]
[PlyCount "108"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e6 2. c4 d5 3. exd5 exd5 4. cxd5 Nf6 5. Bb5+ Bd7 6. Bc4 Bg4 7. Ne2 Nbd7 8. 0-0 Nb6 9. f3 Bd7 10. Bb3 Nfxd5 11. Nbc3 Be6 12. Kh1 Bd6 13. Nxd5 Bxd5 14. Bxd5 Nxd5 15. Qb3 Nb6 16. Qe3+ Be7 17. Nc3 0-0 18. d4 Bf6 19. Rd1 Re8 20. Qf2 Nc4 21. Ne4 Nd6 22. Qc2 Nxe4 23. fxe4 Bxd4 24. Be3 c5 25. Bxd4 cxd4 26. Qd3 Qh4 27. Qxd4 Rxe4 28. Qd5 Rae8 29. Rf1 Qe7 30. Rad1 Re2 31. Qb3 g6 32. Rd3 Re1 33. Rdf3 Rxf1+ 34. Rxf1 b6 35. h3 h5 36. Qd5 Rc8 37. b4 Rc2 38. a3 Qc7 39. Qb3 Re2 40. Qd3 Qe7 41. Qc4 Re3 42. Qc8+ Kh7 43. Qc4 f5 44. Qa6 Kh6 45. Qa4 Qe4 46. Kh2 Re2 47. Rg1 a5 48. Qd1 axb4 49. axb4 Qf4+ 50. Kh1 Qd2 51. Qa1 Qb2 52. Qa6 f4 53. Qa7 Qf6 54. Rf1 Re3 0-1

[Event "Soest op"]
[Site "Soest"]
[Date "1995.??.??"]
[Round "4"]
[White "Helvensteijn, Dennis"]
[Black "Janssen, Ruud"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "98"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. Nf3 cxd4 6. cxd4 e5 7. Nc3 Bb4 8. dxe5 Qxd1+ 9. Kxd1 Bg4 10. Be3 Nge7 11. Bb5 0-0 12. Kc2 Bxf3 13. gxf3 Nxe5 14. f4 Ng4 15. Kb3 Bxc3 16. bxc3 Nd5 17. Rae1 a6 18. Bc4 Ndxe3 19. fxe3 Rfe8 20. e4 Nf2 21. Rhg1 Rxe4 22. Rxe4 Nxe4 23. Rd1 Kf8 24. Bd5 Nc5+ 25. Kb4 Rc8 26. Bf3 Ke7 27. c4 Rc7 28. Ka5 Nd7 29. Kb4 g6 30. Bg4 h5 31. Bf3 Kf6 32. Bg2 Nc5 33. Rd6+ Ke7 34. Rd2 Ne6 35. Rf2 Kf6 36. Bh3 Nd4 37. Kc3 Nf5 38. Kb4 Nd6 39. Rc2 b6 40. Kb3 Nf5 41. Rd2 Re7 42. Bg2 Ne3 43. Bh3 Ng4 44. Bxg4 hxg4 45. Rd5 Re3+ 46. Kc2 Ke6 47. Rg5 Re2+ 48. Kb3 Rxh2 49. Rxg4 Kf5 0-1

[Event "Alphen aan den Rijn op"]
[Site "Alphen aan den Rijn"]
[Date "1995.??.??"]
[Round "1"]
[White "Helvensteijn, Dennis"]
[Black "Reijnen, Marcel JF"]
[Result "1-0"]
[ECO "C56"]
[PlyCount "61"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Nxe4 Be6 10. Bd2 Qb6 11. Bg5 h6 12. Bh4 Be7 13. Bxe7 Nxe7 14. Qxd4 Nf5 15. Qa4+ c6 16. g4 Ne7 17. Nd6+ Kf8 18. Rxe6 fxe6 19. Qf4+ Kg8 20. Qf7+ Kh7 21. Qxe7 Qxb2 22. Re1 Rhf8 23. Qxe6 Qxc2 24. Nf5 Rae8 25. Qxe8 Rxe8 26. Rxe8 Qxa2 27. Re7 Qa1+ 28. Kg2 b5 29. Ne5 Kg8 30. Rxg7+ Kf8 31. Re7 1-0

[Event "Soest op"]
[Site "Soest"]
[Date "1995.??.??"]
[Round "2"]
[White "Helvensteijn, Dennis"]
[Black "Steenbergen, Pepijn"]
[Result "1-0"]
[ECO "B04"]
[PlyCount "39"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Bc4 c6 6. 0-0 Bg7 7. Re1 dxe5 8. Nxe5 0-0 9. Qf3 Nd7 10. Nc3 Nxe5 11. dxe5 Nxc3 12. Qxc3 e6 13. Bf4 b5 14. Rad1 Qb6 15. Be2 Bb7 16. Rd7 Rac8 17. Red1 c5 18. R1d6 Rc6 19. Qd2 c4 20. Bf3 1-0

[Event "Alphen aan den Rijn op"]
[Site "Alphen aan den Rijn"]
[Date "1995.??.??"]
[Round "3"]
[White "Helvensteijn, Dennis"]
[Black "Van der Laan, Dinard"]
[Result "1-0"]
[ECO "C24"]
[PlyCount "47"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 d5 5. exd5 Nxd5 6. h3 Be7 7. 0-0 0-0 8. Re1 Bf6 9. Nbd2 Nb6 10. Bb3 h6 11. Ne4 Bf5 12. Nh2 Nd4 13. Ng4 Bxe4 14. Rxe4 Re8 15. Nxh6+ gxh6 16. Bxh6 Nf5 17. Qg4+ Ng7 18. Qg6 Re6 19. Bxe6 fxe6 20. Bxg7 Bxg7 21. Qxe6+ Kf8 22. f4 Qd7 23. Qg6 Qd6 24. Qf5+ 1-0

[Event "Bussum op"]
[Site "Bussum"]
[Date "1995.??.??"]
[Round "7"]
[White "Kroeze, Frank"]
[Black "Helvensteijn, Dennis"]
[Result "0-1"]
[ECO "B19"]
[WhiteElo "2400"]
[BlackElo "2085"]
[PlyCount "50"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. h4 h6 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Qc7 11. Bd2 Ngf6 12. 0-0-0 e6 13. Ne4 0-0-0 14. g3 Nc5 15. Nxc5 Bxc5 16. Qc4 Bd6 17. Qa4 b6 18. c4 Qb7 19. c5 bxc5 20. Ba5 Qa6 21. dxc5 Bc7 22. b4 Nd5 23. Rh4 Nc3 24. Rxd8+ Rxd8 25. b5 cxb5 0-1

[Event "Soest op"]
[Site "Soest"]
[Date "1995.??.??"]
[Round "3"]
[White "Meijer, Dolf"]
[Black "Helvensteijn, Dennis"]
[Result "1/2-1/2"]
[ECO "D26"]
[PlyCount "49"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c6 2. c4 d5 3. cxd5 cxd5 4. exd5 Qxd5 5. Nc3 Qd8 6. d4 Nf6 7. Bc4 e6 8. Nf3 Be7 9. 0-0 0-0 10. Qe2 Nbd7 11. d5 exd5 12. Nxd5 Nxd5 13. Bxd5 Nf6 14. Bb3 Bg4 15. Rd1 Qe8 16. Bg5 h6 17. Bh4 Bc5 18. Qxe8 Rfxe8 19. Bxf6 gxf6 20. Kf1 Rad8 21. Rxd8 Rxd8 22. Rd1 Rxd1+ 23. Bxd1 Kf8 24. Ne5 fxe5 25. Bxg4 1/2-1/2

[Event "Alphen aan den Rijn op"]
[Site "Alphen aan den Rijn"]
[Date "1995.??.??"]
[Round "4"]
[White "Oei, Hway Ik"]
[Black "Helvensteijn, Dennis"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2280"]
[PlyCount "55"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. Nf3 Be7 5. Bf4 0-0 6. e3 c5 7. dxc5 Nc6 8. a3 Bxc5 9. Qc2 Qa5 10. 0-0-0 dxc4 11. Bxc4 a6 12. Bd3 Be7 13. g4 g6 14. Rhg1 b5 15. Bh6 Rd8 16. g5 Nh5 17. Be4 Bb7 18. Rxd8+ Rxd8 19. Rd1 Rxd1+ 20. Qxd1 Qc7 21. Kb1 Na5 22. Bxb7 Qxb7 23. Ne5 Qc7 24. f4 Bd6 25. Ng4 Nc4 26. Ne4 Be7 27. Qd4 Qd8 28. Qxd8+ 1/2-1/2

[Event "Alphen aan den Rijn op"]
[Site "Alphen aan den Rijn"]
[Date "1995.??.??"]
[Round "6"]
[White "Passenier, Peter"]
[Black "Helvensteijn, Dennis"]
[Result "1/2-1/2"]
[ECO "B14"]
[PlyCount "72"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. cxd5 Bg7 7. Bc4 0-0 8. Nge2 Nbd7 9. Bb3 Nb6 10. Nf4 Bf5 11. 0-0 h6 12. h3 Qd7 13. Re1 Rfe8 14. Qf3 Qc8 15. Be3 g5 16. Nh5 Nxh5 17. Qxh5 Qd7 18. Rad1 a5 19. a4 Qd6 20. Qf3 Bg6 21. Ne4 Bxe4 22. Qxe4 Red8 23. f4 Qb4 24. Bc2 Nxd5 25. Bc1 Nxf4 26. Bxf4 gxf4 27. Qxf4 Rxd4 28. Qf5 Rad8 29. Rf1 Rxd1 30. Bxd1 Qc4 31. Qxa5 Bd4+ 32. Kh1 b6 33. Qf5 Qd5 34. Qxd5 Rxd5 35. Bb3 Rd6 36. Rxf7 e6 1/2-1/2

[Event "Soest op"]
[Site "Soest"]
[Date "1995.??.??"]
[Round "7"]
[White "Van de Donk, Bert"]
[Black "Helvensteijn, Dennis"]
[Result "0-1"]
[ECO "A14"]
[PlyCount "60"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. 0-0 0-0 6. Qc2 c5 7. d3 Nc6 8. a3 a6 9. b3 b5 10. Bb2 Bb7 11. Nbd2 Rc8 12. Rac1 Nd7 13. Qb1 Re8 14. Rfe1 Nb6 15. Qa1 Bf8 16. Red1 Qe7 17. e3 Red8 18. cxb5 axb5 19. Ne5 Nxe5 20. Bxe5 Ra8 21. Bb2 c4 22. dxc4 dxc4 23. Bxb7 Qxb7 24. bxc4 Nxc4 25. Nxc4 Rxd1+ 26. Rxd1 bxc4 27. Qc1 Qb3 28. Rd4 Rc8 29. Qa1 c3 30. Bc1 c2 0-1

