[Event "Helmond Rapid op"]
[Site "Helmond"]
[Date "2024.06.15"]
[Round "9"]
[White "Bach Pareja, Raimon"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "1974"]
[BlackElo "1901"]
[PlyCount "67"]
[EventDate "2024.06.15"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. b4 cxb4 4. d4 d5 5. exd5 Qxd5 6. c4 bxc3 7. Nxc3 Qa5 8. Rb1 Qxc3+ 9. Bd2 Qa3 10. d5 a6 11. dxc6 bxc6 12. Qc2 Qd6 13. Bf4 Qe6+ 14. Be2 Nf6 15. 0-0 Bd7 16. Rfe1 Qe4 17. Qc1 e6 18. Bc4 Ba3 19. Qxa3 Qxf4 20. Bd3 Nd5 21. Rb7 a5 22. Qc5 Rb8 23. Ra7 Qb4 24. Qc1 Qb6 25. Ra6 Qb7 26. a3 0-0 27. Qg5 Nf6 28. Rxa5 Qb3 29. Be2 h6 30. Qh4 Qc3 31. Ra7 Rfd8 32. h3 Rb2 33. Bf1 Qc5 34. Ra4 1-0

[Event "Helmond Rapid op"]
[Site "Helmond"]
[Date "2024.06.15"]
[Round "3"]
[White "Gupta, Akul"]
[Black "Wieringa, Helmer"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1761"]
[BlackElo "1901"]
[PlyCount "110"]
[EventDate "2024.06.15"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. d4 d5 2. Nc3 Nf6 3. Bf4 c6 4. e3 Bf5 5. Bd3 Bg6 6. Nf3 e6 7. 0-0 Qb6 8. Qd2 Nbd7 9. Ne5 Nxe5 10. Bxe5 Bxd3 11. cxd3 Nd7 12. Bg3 Be7 13. a3 a5 14. Rfb1 Qb3 15. Qd1 Qxd1+ 16. Rxd1 a4 17. e4 0-0 18. Re1 Rfe8 19. exd5 exd5 20. Re2 Bf6 21. Rae1 Rxe2 22. Nxe2 Nf8 23. f3 Ne6 24. Be5 Bxe5 25. dxe5 d4 26. f4 g6 27. Rc1 c5 28. g4 Rc8 29. f5 gxf5 30. gxf5 Ng5 31. Kf2 Kf8 32. h4 Nh3+ 33. Kg3 b6 34. Kxh3 Re8 35. e6 fxe6 36. Kg4 exf5+ 37. Kxf5 Rxe2 38. Rc4 Rxb2 39. Rxa4 b5 40. Ra8+ Ke7 41. Ra7+ Kd6 42. Rxh7 c4 43. dxc4 bxc4 44. Ke4 d3 45. Ke3 Re2+ 46. Kf3 c3 47. Rh6+ Kd5 48. Rh8 c2 49. Rd8+ Kc4 50. Rc8+ Kb3 51. h5 Re1 52. Rb8+ Ka2 53. Rc8 c1Q 54. Rxc1 Rxc1 55. Ke3 Rh1 0-1

[Event "Helmond Rapid op"]
[Site "Helmond"]
[Date "2024.06.15"]
[Round "7"]
[White "Kurt, Sascha"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2033"]
[BlackElo "1901"]
[PlyCount "95"]
[EventDate "2024.06.15"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 d6 7. Nc3 Nf6 8. Be2 0-0 9. 0-0 Bd7 10. Rc1 Nxd4 11. Bxd4 Bc6 12. f3 a5 13. b3 h5 14. Qd2 Kh7 15. Be3 Rh8 16. Rfd1 Nd7 17. a3 Kg8 18. Nd5 h4 19. Bg5 Bxd5 20. cxd5 Nc5 21. Bc4 b5 22. b4 bxc4 23. bxc5 c3 24. Qf2 dxc5 25. Qxc5 f6 26. Be3 Rc8 27. Qb6 Qxb6 28. Bxb6 a4 29. Bd4 Kf7 30. Bxc3 Bh6 31. Rc2 Rc4 32. Kf2 Rhc8 33. Rd3 Bf4 34. Ke2 Bd6 35. Kd2 Bxa3 36. Rd4 Bd6 37. Rxc4 Rxc4 38. Kd3 Rc8 39. h3 a3 40. Ra2 e6 41. Bd2 exd5 42. exd5 Rc5 43. Kd4 Rc8 44. Kd3 Ke7 45. Be1 g5 46. Bc3 Kd7 47. Bxf6 Bf4 48. Rxa3 1-0

[Event "Helmond Rapid op"]
[Site "Helmond"]
[Date "2024.06.15"]
[Round "5"]
[White "Makhmud, Adi"]
[Black "Wieringa, Helmer"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "1767"]
[BlackElo "1901"]
[PlyCount "127"]
[EventDate "2024.06.15"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 d6 5. Bb5+ Bd7 6. Bc4 Bc6 7. d4 Nb6 8. Bb3 cxd4 9. cxd4 dxe5 10. dxe5 Qxd1+ 11. Bxd1 e6 12. 0-0 N8d7 13. Be2 0-0-0 14. Ng5 Nxe5 15. Bf4 Ng6 16. Be3 Rd7 17. Rc1 h6 18. Nf3 Be7 19. Nc3 Kb8 20. Nd4 Rc8 21. a4 Nd5 22. Nxc6+ bxc6 23. Ba6 Rcc7 24. Bd2 Nb4 25. Be3 Nxa6 26. b4 Nxb4 27. Rab1 a5 28. Bb6 Rb7 29. Bxa5 Nd3 30. Rxb7+ Rxb7 31. Rd1 Nc5 32. g3 Ne5 33. Ne2 Nxa4 34. f4 Nc4 35. Be1 Bc5+ 36. Bf2 Bxf2+ 37. Kxf2 Kc7 38. Rc1 Nab6 39. Kf3 Ra7 40. h4 Ra3+ 41. Kg4 Nd6 42. Nd4 g6 43. Rxc6+ Kd7 44. Rxb6 Ne4 45. Ne2 h5+ 46. Kh3 Nf2+ 47. Kg2 Ng4 48. Rb7+ Ke8 49. Nd4 Kf8 50. Nf3 Ra2+ 51. Kg1 Kg7 52. Ng5 Nh6 53. Nxe6+ Kf6 54. Ng5 Kf5 55. Nxf7 Nxf7 56. Rxf7+ Kg4 57. Rf6 Ra1+ 58. Kf2 Ra2+ 59. Ke3 Ra3+ 60. Ke4 Ra4+ 61. Ke5 Ra5+ 62. Ke6 Ra6+ 63. Kf7 Rxf6+ 64. Kxf6 1/2-1/2

[Event "Helmond Rapid op"]
[Site "Helmond"]
[Date "2024.06.15"]
[Round "1"]
[White "Van Straten, Jeroen"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "D33"]
[BlackElo "1901"]
[PlyCount "65"]
[EventDate "2024.06.15"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 d5 3. c4 Nf6 4. Bg2 Nc6 5. 0-0 e6 6. cxd5 exd5 7. d4 h6 8. Nc3 Be6 9. Bf4 Be7 10. Rc1 Ne4 11. dxc5 Nxc5 12. a3 a6 13. b4 Ne4 14. Nd4 Nxc3 15. Rxc3 Nxd4 16. Qxd4 0-0 17. Rd3 Rc8 18. Bxd5 Bxd5 19. Qxd5 Qxd5 20. Rxd5 Rc3 21. Rd7 Bf6 22. Rxb7 Rxa3 23. b5 a5 24. Bd6 Rb3 25. Bxf8 Kxf8 26. Rc1 g6 27. Rc8+ Kg7 28. Ra8 Ra3 29. b6 Bd4 30. Rbb8 Rb3 31. b7 Be5 32. Re8 Rxb7 33. Rxe5 1-0

[Event "Helmond Rapid op"]
[Site "Helmond"]
[Date "2024.06.15"]
[Round "4"]
[White "Wieringa, Helmer"]
[Black "Katpatal, Akshaj"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1901"]
[BlackElo "1851"]
[PlyCount "116"]
[EventDate "2024.06.15"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d3 e6 6. b3 g6 7. Bb2 Bg7 8. Nge2 Ne7 9. 0-0 0-0 10. Na4 Bxb2 11. Nxb2 b5 12. Qc1 e5 13. Qe3 Qd6 14. h3 f5 15. f4 exf4 16. Qxf4 Qxf4 17. Nxf4 g5 18. Ne2 f4 19. Rae1 Bd7 20. Kh2 Ng6 21. Ng1 h5 22. g3 fxg3+ 23. Kxg3 h4+ 24. Kh2 Nf4 25. Nd1 Rae8 26. Rf3 Re7 27. Nf2 Kg7 28. Ne2 Nxd3 29. Rxf8 Nxe1 30. Ra8 Rf7 31. Kg1 Nxc2 32. Rxa6 Nd4 33. Nxd4 cxd4 34. Nd3 Bxh3 35. Rxc6 g4 36. Nf2 Rf3 37. Nxh3 Rxh3 38. Rc5 Re3 39. Rg5+ Kh6 40. Rxg4 Kh5 41. Rf4 Kg5 42. Rf5+ Kg4 43. Rxb5 Rxe4 44. Rd5 Kg3 45. Kf1 h3 46. Rg5+ Kh2 47. b4 d3 48. Rd5 Rf4+ 49. Ke1 Rxb4 50. Rxd3 Kg2 51. Rd2+ Kg3 52. Rd3+ Kg2 53. Rd2+ Kg1 54. Rd8 Rg4 55. Rf8 h2 56. Rf1+ Kg2 57. Rf2+ Kg3 58. Rf1 Rf4 0-1

[Event "Helmond Rapid op"]
[Site "Helmond"]
[Date "2024.06.15"]
[Round "8"]
[White "Wieringa, Helmer"]
[Black "Mastop, Guido"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1901"]
[BlackElo "1707"]
[PlyCount "45"]
[EventDate "2024.06.15"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 e6 4. Bxc6 bxc6 5. d3 d5 6. e5 f6 7. Nf3 Qc7 8. Bf4 g5 9. Bg3 g4 10. exf6 Qb7 11. f7+ Kxf7 12. Ne5+ Ke7 13. 0-0 Qxb2 14. Nxc6+ Ke8 15. Be5 Kd7 16. Bxh8 Kxc6 17. Rb1 Qa3 18. Qxg4 Ne7 19. Qh5 Ng6 20. Qxh7 Nxh8 21. Qxh8 Be7 22. Qe8+ Bd7 23. Qxa8+ 1-0

[Event "Helmond Rapid op"]
[Site "Helmond"]
[Date "2024.06.15"]
[Round "6"]
[White "Wieringa, Helmer"]
[Black "Starke, Julian"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1901"]
[BlackElo "1743"]
[PlyCount "94"]
[EventDate "2024.06.15"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Bd3 dxe4 4. Bxe4 Nf6 5. Bf3 Bd6 6. c4 0-0 7. Ne2 Bd7 8. Bxb7 Bc6 9. Bxa8 Bxa8 10. f3 Nc6 11. Nbc3 Re8 12. Be3 Ne7 13. Qd3 c6 14. 0-0-0 Nf5 15. Bf2 Qc7 16. Bg3 Rd8 17. Ne4 Nxe4 18. fxe4 Nxg3 19. hxg3 Be7 20. e5 h6 21. c5 Qa5 22. Qb3 Qc7 23. Nc3 Rb8 24. Qc4 Bg5+ 25. Kc2 Qa5 26. a3 Bb7 27. b4 Qc7 28. Ne4 Be7 29. Nd6 a5 30. Rb1 Ra8 31. Nxb7 Qxb7 32. Kb3 axb4 33. axb4 Rd8 34. Rhd1 Bg5 35. Ra1 Qe7 36. Ra5 Be3 37. b5 cxb5 38. Rxb5 Qg5 39. Rd3 Bf2 40. c6 Rc8 41. c7 Qe7 42. Rb8 Qd7 43. Rxc8+ Qxc8 44. d5 exd5 45. Rxd5 Bb6 46. Rd8+ Qxd8 47. cxd8Q+ Bxd8 1-0

[Event "Helmond Rapid op"]
[Site "Helmond"]
[Date "2024.06.15"]
[Round "2"]
[White "Wieringa, Helmer"]
[Black "Van Wijk, Marco"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1901"]
[BlackElo "1506"]
[PlyCount "47"]
[EventDate "2024.06.15"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 d6 4. Bc4 Bg4 5. c3 Nf6 6. h3 Bh5 7. d5 Na5 8. Bd3 Be7 9. b4 Nxe4 10. Bxe4 Nc4 11. Qd3 Nb6 12. c4 0-0 13. Bxh7+ Kh8 14. Be4 Nd7 15. g4 Bg6 16. Bxg6 fxg6 17. Nbd2 Bh4 18. Qxg6 Rf6 19. Qd3 Rf7 20. Ne4 Qe7 21. Bg5 Bxg5 22. Nexg5 Kg8 23. Qh7+ Kf8 24. Qh8# 1-0

[Event "EU-ch Amateur Online Final 2000/2300"]
[Site "Tornelo INT"]
[Date "2021.04.28"]
[Round "4"]
[White "Lafkidis, Apostolos"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1483"]
[BlackElo "1959"]
[PlyCount "73"]
[EventDate "2021.04.28"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Nxd4 7. Qxd4 Qf6 8. Qxf6 Nxf6 9. Nc3 a6 10. Bd3 d6 11. 0-0 Be6 12. Rfe1 0-0-0 13. e5 dxe5 14. Rxe5 Rd4 15. Rae1 Rhd8 16. f3 Nd7 17. R5e2 c5 18. Bxh7 Nf6 19. Be4 b5 20. b3 Kc7 21. Rf2 Kb6 22. Ne2 Rd2 23. Ng3 c4 24. Ree2 Rd1+ 25. Rf1 Kc5 26. Bf5 Rxf1+ 27. Kxf1 Rd1+ 28. Kf2 Bd5 29. Be4 Kb4 30. Bxd5 Nxd5 31. Ne4 Ka3 32. bxc4 bxc4 33. c3 Rd3 34. Rc2 Rd1 35. g4 Nf4 36. Kg3 Nd3 37. Nd6 1-0

[Event "EU-ch Amateur Online Final 1700/2000"]
[Site "Tornelo INT"]
[Date "2021.04.25"]
[Round "7"]
[White "Wieringa, Helmer"]
[Black "Bougas, Georgios"]
[Result "1-0"]
[ECO "B81"]
[WhiteElo "1959"]
[BlackElo "1096"]
[PlyCount "58"]
[EventDate "2021.04.25"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 h6 7. h4 Nc6 8. Be3 Ne5 9. f3 a6 10. Rg1 Nfd7 11. g5 hxg5 12. hxg5 Nb6 13. f4 Nec4 14. Bc1 Bd7 15. Qf3 Qc7 16. b3 Na5 17. Bb2 Nc6 18. 0-0-0 d5 19. Nxc6 bxc6 20. exd5 cxd5 21. g6 f6 22. f5 d4 23. fxe6 Bxe6 24. Rxd4 Bc5 25. Re4 0-0-0 26. Rxe6 Bxg1 27. Rc6 Kd7 28. Rxc7+ Kxc7 29. Qg3+ Kb7 1-0

[Event "EU-ch Amateur Online Final 1700/2000"]
[Site "Tornelo INT"]
[Date "2021.04.25"]
[Round "3"]
[White "Wieringa, Helmer"]
[Black "Sitsanis, Nikolaos1"]
[Result "1-0"]
[ECO "B81"]
[WhiteElo "1959"]
[BlackElo "1660"]
[PlyCount "73"]
[EventDate "2021.04.25"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. g4 e5 8. Nf5 g6 9. g5 Nxe4 10. Nxe4 Bxf5 11. Nf6+ Ke7 12. Nd5+ Ke8 13. Bb6 Qxg5 14. Nc7+ Kd7 15. Nxa8 Be4 16. f3 Qh4+ 17. Bf2 Qf4 18. fxe4 Qxe4+ 19. Qe2 Qxh1 20. 0-0-0 Qxh2 21. Nb6+ Ke8 22. Nc8 Kd7 23. Nb6+ Ke8 24. Kb1 Nc6 25. Qf3 Be7 26. Bc4 f5 27. Nd5 e4 28. Qc3 Rf8 29. Bb6 Qh5 30. Nc7+ Kd7 31. Be6+ Kd8 32. Nxa6+ Ke8 33. Nc7+ Kd8 34. Qd2 e3 35. Nb5+ Ke8 36. Nxd6+ Bxd6 37. Qxd6 1-0

[Event "EU-ch Amateur Online 1700/2000"]
[Site "Tornelo INT"]
[Date "2021.04.24"]
[Round "5"]
[White "Wieringa, Helmer"]
[Black "Kanellis, Nikolaos"]
[Result "1-0"]
[ECO "C87"]
[WhiteElo "1959"]
[BlackElo "1718"]
[PlyCount "101"]
[EventDate "2021.04.24"]
[EventType "swiss (rapid)"]
[EventRounds "8"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 0-0 7. h3 d6 8. c3 Re8 9. d4 b5 10. Bc2 Bf8 11. a3 Bb7 12. Nbd2 Nb8 13. b4 Nbd7 14. Bb2 Rc8 15. Qb1 c5 16. bxc5 dxc5 17. d5 c4 18. Nf1 Bd6 19. Bc1 Nc5 20. Ng3 Rc7 21. Nf5 Bc8 22. g4 Bxf5 23. gxf5 Qc8 24. Nh4 Nd3 25. Bxd3 cxd3 26. Bd2 Rxc3 27. Bxc3 Qxc3 28. Re3 Qc4 29. Qxd3 Qxd3 30. Rxd3 Nxe4 31. Kg2 Nc5 32. Rdd1 e4 33. Rac1 Nd3 34. Rc6 Be7 35. f6 Bxf6 36. Nf5 Nf4+ 37. Kh2 Be5 38. Ng3 e3 39. fxe3 Ne2 40. d6 Bxg3+ 41. Kg2 Bxd6 42. Rcxd6 g6 43. Rd8 Kf8 44. Rxe8+ Kxe8 45. Rd6 Nc3 46. Rxa6 Ke7 47. Kf3 Nd5 48. e4 Nc3 49. Ke3 h5 50. Kd4 Ne2+ 51. Ke5 1-0

[Event "Wch Seniors 65 27th"]
[Site "Acqui Terme"]
[Date "2017.11.07"]
[Round "1"]
[White "Torre, Eugenio"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2465"]
[BlackElo "1997"]
[PlyCount "73"]
[EventDate "2017.11.07"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ITA"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 0-0 6. Be2 c5 7. 0-0 cxd4 8. exd4 Nc6 9. Ne5 Qb6 10. Nxc6 Qxc6 11. a4 Be6 12. Bb5 Qc8 13. Re1 a6 14. Bf1 b6 15. Ra3 Qb7 16. Be5 Rfd8 17. Bd3 Ne8 18. h4 Nd6 19. h5 Bf5 20. hxg6 hxg6 21. Bxd6 Rxd6 22. Bxf5 gxf5 23. Ne2 Rh6 24. Nf4 e6 25. Rg3 Kh7 26. c3 Bh8 27. Rh3 Rxh3 28. Nxh3 Bf6 29. Nf4 Rh8 30. Re3 Kg8 31. Nh5 Rh6 32. Rh3 Bh8 33. Qd2 Rg6 34. Nf4 Rf6 35. Qe3 Bg7 36. Qg3 b5 37. Qg5 1-0

[Event "Mare di Fano op 6th"]
[Site "Fano"]
[Date "2017.07.31"]
[Round "3"]
[White "Wieringa, Helmer"]
[Black "Albini, Federico"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1966"]
[BlackElo "1873"]
[PlyCount "67"]
[EventDate "2017.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. c3 g5 6. h4 g4 7. Nh2 d6 8. Be3 Rg8 9. g3 Qe7 10. Nd2 Be6 11. Qc2 0-0-0 12. Bb5 a6 13. Bxc6 bxc6 14. Qa4 Kd7 15. Qxa6 Bg7 16. Qa4 Ra8 17. Qc2 Bxa2 18. b3 Qe6 19. Rxa2 Nh5 20. 0-0 Rxa2 21. Qxa2 Bf6 22. Ra1 Nf4 23. Ndf1 Bxh4 24. gxh4 Qf6 25. Ng3 Qxh4 26. Qb1 h5 27. Qf1 Qf6 28. d4 h4 29. dxe5 Qg5 30. Bxf4 Qxf4 31. Qc1 Qxe5 32. Qe3 Rg6 33. Nhf1 hxg3 34. Nxg3 1-0

[Event "Mare di Fano op 6th"]
[Site "Fano"]
[Date "2017.07.31"]
[Round "4"]
[White "Wieringa, Helmer"]
[Black "Rendboe, John Filip"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "1966"]
[BlackElo "2175"]
[PlyCount "104"]
[EventDate "2017.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 Nf6 7. Bg5 a6 8. Bxf6 gxf6 9. Na3 b5 10. Nd5 Bg7 11. c3 0-0 12. Qh5 Be6 13. Rd1 Ne7 14. Nc2 f5 15. Nxe7+ Qxe7 16. exf5 Bxa2 17. Nb4 Bb3 18. Nd5 Bxd5 19. Rxd5 Rac8 20. Qd1 Rc6 21. g3 Qg5 22. Bg2 Qxf5 23. 0-0 Qd7 24. Qd3 Rb6 25. Rd1 Rd8 26. Be4 h6 27. b3 Qe7 28. c4 bxc4 29. bxc4 Rc8 30. Ra5 Rc5 31. Rxc5 dxc5 32. Qd8+ Qxd8 33. Rxd8+ Bf8 34. Bd5 Rd6 35. Ra8 Kg7 36. Ra7 Rf6 37. g4 Kg6 38. h4 Kg7 39. f3 Kg6 40. Be4+ Kg7 41. h5 Re6 42. Bd5 Rf6 43. Kf2 Kg8 44. Ke3 Kg7 45. Kd3 Rf4 46. Rxa6 Be7 47. Be4 Bg5 48. Rc6 Be7 49. Kc3 Rf6 50. Rc7 Kf8 51. Rc8+ Kg7 52. Kb3 Rb6+ 1-0

[Event "Mare di Fano op 6th"]
[Site "Fano"]
[Date "2017.07.30"]
[Round "2"]
[White "Partac, Elena"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "C56"]
[WhiteElo "2108"]
[BlackElo "1966"]
[PlyCount "69"]
[EventDate "2017.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. 0-0 Bc5 6. c3 dxc3 7. Bxf7+ Kxf7 8. e5 d5 9. exf6 gxf6 10. Nxc3 Ne7 11. Nh4 c6 12. Qh5+ Ng6 13. Bh6 Bf8 14. Bxf8 Qxf8 15. Rfe1 Kg7 16. Re3 Nxh4 17. Qxh4 Bf5 18. Rae1 Rg8 19. Ne2 Kh8 20. Ng3 Bg6 21. Qf4 Re8 22. Rxe8 Bxe8 23. b4 Qg7 24. h4 Bg6 25. Qf3 Re8 26. Rxe8+ Bxe8 27. Nf5 Qg8 28. a3 Bg6 29. Nd4 Be4 30. Qf4 Qf7 31. f3 Bd3 32. h5 Qxh5 33. Qxf6+ Kg8 34. Ne6 Qf7 35. Qd8+ 1-0

[Event "Mare di Fano op 6th"]
[Site "Fano"]
[Date "2017.07.29"]
[Round "1"]
[White "Wieringa, Helmer"]
[Black "Meessen, Rudolf"]
[Result "0-1"]
[ECO "C13"]
[WhiteElo "1966"]
[BlackElo "2283"]
[PlyCount "70"]
[EventDate "2017.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 gxf6 7. c3 f5 8. Ng3 a6 9. Be2 c5 10. dxc5 Qxd1+ 11. Rxd1 Bxc5 12. Nf3 Nc6 13. 0-0 0-0 14. a4 Be7 15. Nh5 Rb8 16. Nd4 Ne5 17. Rfe1 Rd8 18. b4 Bd7 19. f4 Nc6 20. Nf3 Na7 21. a5 Ba4 22. Ra1 Be8 23. Nd4 Rbc8 24. Bf3 Rc7 25. Re3 Nb5 26. Nxb5 Bxb5 27. Ra2 Rd3 28. Rxd3 Bxd3 29. Rb2 h6 30. Kf2 Kh7 31. Ke3 Bb5 32. Kd4 Kg6 33. h3 Rc4+ 34. Ke3 Rxc3+ 35. Kd2 Rc4 0-1

[Event "Terre degli Elimi op 7th"]
[Site "Erice"]
[Date "2016.08.04"]
[Round "9"]
[White "Wieringa, Helmer"]
[Black "Castelli, Giovanni J"]
[Result "0-1"]
[ECO "C90"]
[WhiteElo "1950"]
[BlackElo "1958"]
[PlyCount "106"]
[EventDate "2016.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Be7 7. d3 d6 8. c3 0-0 9. Re1 Na5 10. Bc2 c5 11. Nbd2 Nc6 12. Nf1 Re8 13. a3 Bf8 14. b4 g6 15. Ne3 Bg7 16. Bd2 Bb7 17. bxc5 dxc5 18. Qb1 Rb8 19. Qa2 Ba8 20. Ng5 Rf8 21. Rad1 h6 22. Nh3 Qd6 23. Rf1 Rbd8 24. Bc1 Bb7 25. f4 Nh5 26. f5 g5 27. f6 Nxf6 28. Nf5 Qc7 29. Nxh6+ Bxh6 30. Rxf6 Bg7 31. Rf5 Ne7 32. Rxg5 c4 33. Rg3 cxd3 34. Bh6 Qb6+ 35. Be3 dxc2 36. Qxc2 Qc6 37. Ng5 f6 38. Qb3+ Qc4 39. Qxc4+ bxc4 40. Rxd8 Rxd8 41. Ne6 Rd1+ 42. Kf2 Kf7 43. Nxg7 Bxe4 44. Bc5 Nd5 45. Nh5 Rd2+ 46. Kf1 Bd3+ 47. Ke1 Re2+ 48. Kf1 Rc2+ 49. Ke1 Bg6 50. Rh3 Nxc3 51. g4 Re2+ 52. Kf1 Bd3 53. Kg1 Nd5 0-1

[Event "Terre degli Elimi op 7th"]
[Site "Erice"]
[Date "2016.08.03"]
[Round "8"]
[White "Pisacane, Pietro"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "A84"]
[WhiteElo "2190"]
[BlackElo "1950"]
[PlyCount "81"]
[EventDate "2016.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c6 4. e3 f5 5. Bd3 Nf6 6. 0-0 Bd6 7. b3 0-0 8. Ba3 Bxa3 9. Nxa3 Qd6 10. Nc2 Nbd7 11. cxd5 cxd5 12. Qc1 Ne4 13. Qa3 a6 14. Rac1 Kf7 15. Qxd6 Nxd6 16. Ng5+ Ke7 17. Nxh7 Rh8 18. Ng5 Nf6 19. Nf3 Bd7 20. Na3 Rag8 21. Ne5 g5 22. f3 Nde8 23. g4 Nd6 24. Kg2 Rh6 25. h3 Rgh8 26. Rh1 Kd8 27. Nb1 Be8 28. Nc3 Nd7 29. gxf5 Nxf5 30. Bxf5 Nxe5 31. dxe5 exf5 32. Nxd5 g4 33. hxg4 fxg4 34. fxg4 Bc6 35. e4 Kd7 36. Rxh6 Rxh6 37. Rf1 Rh8 38. Rf7+ Ke8 39. e6 Rh6 40. Nf6+ Kd8 41. e7+ 1-0

[Event "Terre degli Elimi op 7th"]
[Site "Erice"]
[Date "2016.08.02"]
[Round "6"]
[White "Kovanova, Mariya"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "C26"]
[WhiteElo "2143"]
[BlackElo "1950"]
[PlyCount "79"]
[EventDate "2016.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 a6 5. d3 d6 6. h3 b5 7. Qe2 Nc6 8. Nf3 Nd4 9. Nxd4 Bxd4 10. Nd1 Bb7 11. 0-0 Qe7 12. c3 Bb6 13. Be3 Bxe3 14. Nxe3 g6 15. Kh2 Nh5 16. Rae1 Ng7 17. f4 f6 18. Qg4 0-0 19. f5 Qf7 20. a3 c6 21. fxg6 hxg6 22. Qh4 Bc8 23. Bf3 Ne6 24. Ng4 Kg7 25. Qh6+ Kg8 26. Bd1 Qg7 27. Qh4 g5 28. Qh5 d5 29. exd5 cxd5 30. Bb3 Nc7 31. Nh6+ Kh8 32. Rf2 Be6 33. Ref1 Ne8 34. Nf7+ Kg8 35. Nh6+ Kh8 36. Nf7+ Kg8 37. Nxg5 Qd7 38. Qg6+ Kh8 39. Nxe6 Qxe6 40. Rf5 1-0

[Event "Terre degli Elimi op 7th"]
[Site "Erice"]
[Date "2016.08.02"]
[Round "7"]
[White "Wieringa, Helmer"]
[Black "Agnello, Francesco Claudio"]
[Result "1-0"]
[ECO "B35"]
[WhiteElo "1950"]
[BlackElo "2079"]
[PlyCount "75"]
[EventDate "2016.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 cxd4 5. Nxd4 Nc6 6. Be3 Nf6 7. Bc4 0-0 8. Bb3 Re8 9. f4 d6 10. 0-0 Ng4 11. Nxc6 bxc6 12. Bd4 c5 13. Bxg7 Kxg7 14. Qe2 a5 15. h3 Nh6 16. a4 Qb6 17. Nd5 Qa7 18. Bc4 Bd7 19. Qd2 f6 20. e5 Nf5 21. g4 Nd4 22. c3 Nc6 23. exf6+ exf6 24. Nxf6 Kxf6 25. f5 gxf5 26. Qxd6+ Kg7 27. gxf5 Ne5 28. f6+ Kg6 29. f7+ Re6 30. Bxe6 c4+ 31. Kh2 Qe3 32. Bd5+ Kh5 33. Bxa8 Qxh3+ 34. Kg1 Qg3+ 35. Bg2 Bh3 36. Qxe5+ Qxe5 37. f8Q Bxg2 38. Rf5+ 1-0

[Event "Terre degli Elimi op 7th"]
[Site "Erice"]
[Date "2016.08.01"]
[Round "5"]
[White "Wieringa, Helmer"]
[Black "Favitta, Amedeo"]
[Result "1-0"]
[ECO "B32"]
[WhiteElo "1950"]
[BlackElo "2019"]
[PlyCount "63"]
[EventDate "2016.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3 b5 8. Nd5 Nge7 9. c4 Nd4 10. Nxe7 Bxe7 11. cxb5 Bb7 12. bxa6 Bxe4 13. Be3 0-0 14. Bxd4 exd4 15. Bd3 Bxg2 16. Rg1 Qa5+ 17. Qd2 Qe5+ 18. Qe2 Qxh2 19. 0-0-0 Qf4+ 20. Kb1 Bf3 21. Qxe7 Bxd1 22. Rxd1 Qxf2 23. Nc2 Rae8 24. Qb7 h5 25. b4 h4 26. b5 g6 27. a7 h3 28. b6 d5 29. Qxd5 h2 30. b7 h1Q 31. Rxh1 Qd2 32. Qxd4 1-0

[Event "Terre degli Elimi op 7th"]
[Site "Erice"]
[Date "2016.07.31"]
[Round "4"]
[White "Bertino, Giacomo"]
[Black "Wieringa, Helmer"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "1950"]
[BlackElo "1950"]
[PlyCount "80"]
[EventDate "2016.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. g3 c6 4. Bg2 Nf6 5. 0-0 dxc4 6. a4 Be7 7. Qc2 0-0 8. Na3 b6 9. Nxc4 Bb7 10. d4 Nbd7 11. Bf4 c5 12. dxc5 Be4 13. Qd1 Nxc5 14. Nfe5 Bxg2 15. Kxg2 Qc8 16. b4 Rd8 17. Qc2 Na6 18. b5 Nb4 19. Qb3 Nfd5 20. Bd2 a5 21. Bxb4 Nxb4 22. Rac1 Qb7+ 23. Kg1 Bc5 24. Rfd1 Rd5 25. Rxd5 exd5 26. Qf3 Qe7 27. Nd3 Rd8 28. Nce5 Rd6 29. Nxc5 Qxe5 30. Nb7 Re6 31. Nd8 Rf6 32. Qg4 h5 33. Qc8 Kh7 34. e3 Nd3 35. Nc6 Qb2 36. Rf1 Rxf2 37. Qh3 g6 38. Nd4 Qd2 39. Nf3 Qxe3 40. Ng5+ Kg7 0-1

[Event "Terre degli Elimi op 7th"]
[Site "Erice"]
[Date "2016.07.30"]
[Round "3"]
[White "Wieringa, Helmer"]
[Black "Campo, Renato"]
[Result "1/2-1/2"]
[ECO "C00"]
[WhiteElo "1950"]
[BlackElo "1979"]
[PlyCount "88"]
[EventDate "2016.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 c5 4. f4 Nc6 5. Ngf3 Be7 6. g3 Nf6 7. h3 b6 8. e5 Nh5 9. Kf2 g6 10. Bg2 Bb7 11. c3 Qc7 12. a3 Ng7 13. Nf1 h5 14. Bd2 d4 15. c4 Nf5 16. h4 Rd8 17. Qe2 a6 18. Ng5 Bxg5 19. hxg5 h4 20. g4 Ne3 21. Nxe3 dxe3+ 22. Bxe3 Nd4 23. Bxd4 Rxd4 24. Qe3 Bxg2 25. Kxg2 Qc6+ 26. Kh3 Ke7 27. Rh2 Rhd8 28. Rd2 b5 29. b3 a5 30. Rad1 a4 31. bxa4 bxc4 32. dxc4 Rxd2 33. Rxd2 Qh1+ 34. Rh2 Qf1+ 35. Kxh4 Rd4 36. Rd2 Qxc4 37. Rxd4 cxd4 38. Qe4 Qxa4 39. Qd3 Qd7 40. Kg3 Qd5 41. Kf2 Qa2+ 42. Ke1 Qa1+ 43. Ke2 Qa2+ 44. Kf3 Qd5+ 1/2-1/2

[Event "Terre degli Elimi op 7th"]
[Site "Erice"]
[Date "2016.07.29"]
[Round "2"]
[White "Suleimanov, Marat M"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "C38"]
[WhiteElo "2045"]
[BlackElo "1950"]
[PlyCount "127"]
[EventDate "2016.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 h6 4. Bc4 d6 5. d4 g5 6. 0-0 Bg7 7. Nc3 Be6 8. Bxe6 fxe6 9. Qd3 Qd7 10. h4 Nc6 11. Ne2 e5 12. d5 Nce7 13. hxg5 0-0-0 14. Bd2 Qg4 15. gxh6 Nxh6 16. Nh2 Qd7 17. a4 Bf6 18. Qb5 c6 19. dxc6 bxc6 20. Qa6+ Qb7 21. Qxb7+ Kxb7 22. a5 Ka6 23. Bc3 Bh4 24. Be1 Bxe1 25. Rfxe1 Rhg8 26. Ra3 Rg6 27. Kf2 Rdg8 28. Rg1 Rb8 29. b3 Rf6 30. Ra4 Rb5 31. b4 d5 32. Nc3 Rb8 33. exd5 cxd5 34. b5+ Kb7 35. a6+ Kb6 36. Rb4 Kc5 37. Rgb1 Nc8 38. Na4+ Kd6 39. c4 dxc4 40. Rxc4 Kd7 41. Nc5+ Ke8 42. Nb7 Nd6 43. Nxd6+ Rxd6 44. Rc5 Rxa6 45. Rxe5+ Kf7 46. Rb4 Rf6 47. Ra4 Rb7 48. Kf3 Rf5 49. Rxf4 Rxf4+ 50. Kxf4 Kf6 51. g4 Nf7 52. Rf5+ Kg6 53. Nf3 Nd6 54. Rg5+ Kf6 55. Nd4 Nf7 56. Rc5 Rd7 57. Nf5 Ng5 58. Rc6+ Ne6+ 59. Ke4 Rd1 60. Ra6 Re1+ 61. Ne3 Rb1 62. Nd5+ Kg6 63. Ke5 Rxb5 64. Rxe6+ 1-0

[Event "Terre degli Elimi op 7th"]
[Site "Erice"]
[Date "2016.07.28"]
[Round "1"]
[White "Wieringa, Helmer"]
[Black "Bifulco, Michel"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "1950"]
[BlackElo "2198"]
[PlyCount "64"]
[EventDate "2016.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. Bd3 Be6 12. 0-0 Bg7 13. Qh5 f4 14. c3 0-0 15. Nc2 f5 16. Ncb4 Nxb4 17. Nxb4 Qd7 18. exf5 Bxf5 19. Bxf5 Rxf5 20. Qf3 Re8 21. Rfe1 Qe6 22. Qd5 a5 23. Qxe6+ Rxe6 24. Nc6 e4 25. a3 d5 26. Nxa5 d4 27. cxd4 Bxd4 28. Rab1 Bb6 29. b4 f3 30. Rb2 e3 31. fxe3 f2+ 32. Rxf2 Rxe3 0-1

[Event "Hilversum op"]
[Site "Hilversum"]
[Date "2011.06.26"]
[Round "5"]
[White "Epishin, Vladimir"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "2562"]
[BlackElo "2076"]
[PlyCount "57"]
[EventDate "2011.06.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 a6 6. b3 b5 7. Bd3 Nbd7 8. 0-0 Bb7 9. Qe2 Bd6 10. e4 dxe4 11. Nxe4 Nxe4 12. Qxe4 h6 13. Re1 Nf6 14. Qh4 Qc7 15. Ne5 Bb4 16. Re2 0-0-0 17. Bb2 bxc4 18. bxc4 c5 19. a3 Ba5 20. d5 exd5 21. cxd5 Nxd5 22. Nc4 Bc3 23. Bxc3 Nxc3 24. Re7 Qc6 25. Bf5+ Kb8 26. Qg3+ Ka8 27. Rae1 Rhe8 28. Rxe8 Rxe8 29. Rxe8+ 1-0

[Event "Hilversum op"]
[Site "Hilversum"]
[Date "2011.06.25"]
[Round "3"]
[White "Afek, Yochanan"]
[Black "Wieringa, Helmer"]
[Result "0-1"]
[ECO "D42"]
[WhiteElo "2295"]
[BlackElo "2076"]
[PlyCount "105"]
[EventDate "2011.06.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. c4 c6 2. e4 d5 3. exd5 cxd5 4. d4 Nf6 5. Nc3 e6 6. Nf3 Be7 7. cxd5 Nxd5 8. Bd3 Nc6 9. 0-0 a6 10. Re1 0-0 11. Bc2 Ncb4 12. Bb1 Nf6 13. Ne5 Re8 14. Bg5 g6 15. Qf3 Nbd5 16. Bc2 Kg7 17. Bb3 Nxc3 18. bxc3 Rf8 19. Rad1 Ng8 20. Bf4 Bd6 21. d5 Qc7 22. Qe3 f6 23. Nxg6 hxg6 24. Bxd6 Qxd6 25. dxe6 Qe7 26. Qb6 f5 27. Rd4 Nf6 28. Red1 a5 29. Bc4 g5 30. h4 g4 31. f3 gxf3 32. gxf3 Kh6 33. Kf1 Rg8 34. Rd8 Bxe6 35. Qe3+ Kh5 36. Bxe6 Raxd8 37. Rxd8 Qxd8 38. Bf7+ Kxh4 39. Kf2 Nh5 40. Bxg8 Qxg8 41. Qe7+ Kh3 42. Qxb7 Qxa2+ 43. Ke3 Qc4 44. Qh7 Qxc3+ 45. Kf2 Qd2+ 46. Kf1 Kg3 47. Qg6+ Kh4 48. Qh7 Qf4 49. Kf2 a4 50. Qe7+ Kh3 51. Qe8 Qg3+ 52. Ke2 Qg2+ 53. Ke3 0-1

[Event "Hilversum op"]
[Site "Hilversum"]
[Date "2011.06.25"]
[Round "4"]
[White "Wieringa, Helmer"]
[Black "Nikolic, Predrag"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2076"]
[BlackElo "2630"]
[PlyCount "108"]
[EventDate "2011.06.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 d6 2. Nc3 g6 3. g3 Bg7 4. Bg2 c6 5. f4 e5 6. d3 Ne7 7. Nh3 0-0 8. 0-0 exf4 9. Nxf4 Na6 10. Nce2 Nc7 11. d4 f5 12. c3 fxe4 13. Bxe4 Nf5 14. Ng2 d5 15. Bd3 Nd6 16. Rxf8+ Qxf8 17. Be3 Nc4 18. Bc1 Bg4 19. b3 Nd6 20. Qc2 Ne6 21. Be3 Qe7 22. Qd2 Re8 23. Re1 Bf3 24. h4 Ne4 25. Bxe4 Bxe4 26. Nef4 Rf8 27. Nxe6 Qxe6 28. Kh2 Rf3 29. Bf2 Qf5 30. Be3 Qg4 31. Bf4 Rd3 32. Qb2 h6 33. Re3 Qd1 34. Rxd3 Qxd3 35. Qd2 Qf1 36. Be3 a5 37. Qf2 Qa1 38. Qd2 b5 39. g4 Bf8 40. Bf4 Qf1 41. Be5 Ba3 42. Bg3 Qf3 43. g5 hxg5 44. hxg5 Bc1 45. Qf2 Qh5+ 46. Kg1 Bxg5 47. Bd6 Bh6 48. Bc7 Qg4 49. Kf1 a4 50. bxa4 bxa4 51. a3 Qxg2+ 52. Qxg2 Bxg2+ 53. Kxg2 Bf8 54. Kf3 Bxa3 0-1

[Event "Hilversum op-A"]
[Site "Hilversum"]
[Date "2010.07.04"]
[Round "9"]
[White "Van Engen, Herman J"]
[Black "Wieringa, Helmer"]
[Result "1/2-1/2"]
[ECO "D45"]
[WhiteElo "2161"]
[BlackElo "2083"]
[PlyCount "62"]
[EventDate "2010.06.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. b3 0-0 8. Be2 Qe7 9. 0-0 Rd8 10. Bb2 Nf8 11. Ne5 Bd7 12. Rad1 Be8 13. f4 Rac8 14. Bd3 c5 15. Qe2 a6 16. Kh1 Ra8 17. Rf2 dxc4 18. bxc4 b5 19. cxb5 axb5 20. Bxb5 Bxb5 21. Qxb5 Bxe5 22. fxe5 Ng4 23. Re2 Nxe3 24. Rxe3 cxd4 25. Ree1 dxc3 26. Bxc3 Rxa2 27. Bb4 Qg5 28. Qb7 Rd5 29. Rg1 Qd8 30. Rxd5 exd5 31. Rf1 Qe8 1/2-1/2

[Event "Hilversum op-A"]
[Site "Hilversum"]
[Date "2010.07.03"]
[Round "8"]
[White "Wieringa, Helmer"]
[Black "Ten Have, Roland"]
[Result "1/2-1/2"]
[ECO "C18"]
[WhiteElo "2083"]
[BlackElo "1654"]
[PlyCount "32"]
[EventDate "2010.06.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qc7 7. Qg4 f5 8. Qg3 b6 9. Bb5+ Kf8 10. a4 Ne7 11. a5 Ba6 12. Bxa6 Nxa6 13. axb6 axb6 14. Ne2 Nc6 15. Qd3 Na5 16. g4 fxg4 1/2-1/2

[Event "Hilversum op-A"]
[Site "Hilversum"]
[Date "2010.07.02"]
[Round "7"]
[White "Van de Groep, William"]
[Black "Wieringa, Helmer"]
[Result "0-1"]
[ECO "C25"]
[WhiteElo "1970"]
[BlackElo "2083"]
[PlyCount "51"]
[EventDate "2010.06.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Bc5 3. Bc4 Nc6 4. Qg4 g6 5. Qg3 d6 6. Nge2 Na5 7. d3 Nxc4 8. dxc4 Be6 9. b3 f6 10. 0-0 g5 11. a3 Ne7 12. b4 Bb6 13. Nd5 Ng6 14. Qf3 0-0 15. Ng3 c6 16. Nxb6 axb6 17. Qh5 Qd7 18. Be3 Bxc4 19. Rfd1 Be6 20. Bxb6 d5 21. exd5 cxd5 22. c4 d4 23. Qe2 Nf4 24. Qc2 Qc6 25. f3 Qxb6 26. Ne4 0-1

[Event "Hilversum op-A"]
[Site "Hilversum"]
[Date "2010.07.01"]
[Round "6"]
[White "Wieringa, Helmer"]
[Black "Veldhuysen, Klaas"]
[Result "1/2-1/2"]
[ECO "B33"]
[BlackElo "2010"]
[PlyCount "114"]
[EventDate "2010.06.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3 b5 8. Nd5 Nf6 9. Bg5 Be7 10. Bxf6 Bxf6 11. c3 0-0 12. Nc2 Bg5 13. Nce3 Bxe3 14. Nxe3 Ne7 15. Bd3 Ra7 16. 0-0 Kh8 17. a4 bxa4 18. Rxa4 d5 19. exd5 Nxd5 20. Nxd5 Qxd5 21. Bc4 Qc6 22. Bd5 Qd6 23. c4 Rd7 24. Qa1 Rfd8 25. h3 Qg6 26. Ra3 f5 27. b4 Re7 28. Re1 Qd6 29. Qc3 Qc7 30. Ra5 h6 31. Rc5 Qb8 32. Rc6 f4 33. Bf3 Rde8 34. c5 Kh7 35. Be4+ Kh8 36. Rd1 Rf8 37. Rcd6 Qc7 38. Qd2 Ref7 39. Qd5 Qe7 40. c6 f3 41. g3 Bxh3 42. Bg6 Rf6 43. Rxf6 gxf6 44. Qxf3 Be6 45. Qe3 Kg7 46. Bd3 Qxb4 47. Qa7+ Rf7 48. Qxa6 e4 49. Qb5 Qb3 50. Be2 Qxb5 51. Bxb5 Ra7 52. Rd4 f5 53. Rd6 Kf7 54. Rd8 Ra1+ 55. Kg2 Ra5 56. Rb8 Ke7 57. c7 Kd6 1/2-1/2

[Event "Hilversum op-A"]
[Site "Hilversum"]
[Date "2010.06.30"]
[Round "5"]
[White "Wieringa, Helmer"]
[Black "Abma, Klaas"]
[Result "1-0"]
[ECO "C11"]
[WhiteElo "2083"]
[BlackElo "1981"]
[PlyCount "59"]
[EventDate "2010.06.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 Qa5 8. Qd2 a6 9. dxc5 Nxc5 10. Be2 b5 11. 0-0 b4 12. Nd1 Ne4 13. Qe1 Bc5 14. Bd3 Bxe3+ 15. Nxe3 Nc5 16. Kh1 Qb6 17. f5 Nxd3 18. cxd3 Bd7 19. Rc1 Rc8 20. Nxd5 Qb5 21. Nf4 g5 22. Nh5 g4 23. Nf6+ Ke7 24. Nxg4 exf5 25. Qh4+ Kf8 26. Qh6+ Ke8 27. Nf6+ Kd8 28. Nxd7 Kxd7 29. Qd6+ Ke8 30. e6 1-0

[Event "Hilversum op-A"]
[Site "Hilversum"]
[Date "2010.06.29"]
[Round "4"]
[White "Bonoo, Iwan"]
[Black "Wieringa, Helmer"]
[Result "1/2-1/2"]
[ECO "D43"]
[WhiteElo "1949"]
[BlackElo "2083"]
[PlyCount "81"]
[EventDate "2010.06.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 h6 6. Bh4 g5 7. Bg3 dxc4 8. a4 Bb4 9. Qc2 b5 10. e3 Bb7 11. Be2 a6 12. 0-0 Nbd7 13. Ne5 Bxc3 14. bxc3 0-0 15. Rab1 Ra7 16. Bf3 Nb6 17. Bxc6 Nxa4 18. Bxb7 Rxb7 19. Nxc4 Nd5 20. Bd6 Re8 21. Qxa4 bxa4 22. Rxb7 Qc8 23. Rb8 Qxb8 24. Bxb8 Rxb8 25. g4 Rc8 26. Na3 Rxc3 27. Ra1 Rb3 28. Kg2 Kf8 29. Nc4 Rb4 30. Ne5 Nc3 31. Rc1 Nb5 32. Rc8+ Kg7 33. Ra8 Rb2 34. Rxa6 Ra2 35. Rb6 Nc3 36. Rb7 Nd1 37. Rxf7+ Kg8 38. Kg3 a3 39. Ra7 Nxf2 40. Nc4 Nd1 41. Rxa3 1/2-1/2

[Event "Hilversum op-A"]
[Site "Hilversum"]
[Date "2010.06.28"]
[Round "3"]
[White "Koudinov, Dimitri"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "D43"]
[WhiteElo "2063"]
[BlackElo "2083"]
[PlyCount "62"]
[EventDate "2010.06.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bxf6 Qxf6 7. e3 Nd7 8. Bd3 g6 9. 0-0 Bg7 10. e4 dxc4 11. Bxc4 e5 12. d5 0-0 13. dxc6 bxc6 14. Na4 Nb6 15. Bb3 Rd8 16. Qe2 Nxa4 17. Bxa4 h5 18. Rac1 Rd6 19. Rfd1 Bb7 20. Qc4 Rad8 21. Rxd6 Rxd6 22. h4 Bh6 23. Rc3 Rd4 24. Nxd4 exd4 25. Rf3 Qe6 26. Qxd4 c5 27. Qd8+ Kh7 28. Qc7 Bxe4 29. Rxf7+ Kg8 30. Bb3 Bd5 31. Qd8+ Kxf7 1-0

[Event "Hilversum op-A"]
[Site "Hilversum"]
[Date "2010.06.27"]
[Round "2"]
[White "Wieringa, Helmer"]
[Black "Van den Hoogen, Arie"]
[Result "1/2-1/2"]
[ECO "C91"]
[WhiteElo "2083"]
[BlackElo "1998"]
[PlyCount "75"]
[EventDate "2010.06.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. d4 Bg4 10. d5 Na5 11. Bc2 c5 12. Nbd2 Nd7 13. a3 Bh5 14. b3 Bg6 15. Nf1 f5 16. exf5 Bxf5 17. Bxf5 Rxf5 18. Ng3 Rf7 19. Be3 Qc7 20. Ne4 Nb7 21. Nfg5 Bxg5 22. Nxg5 Re7 23. Qh5 Nf6 24. Qd1 c4 25. a4 bxa4 26. Rxa4 cxb3 27. Qxb3 Nc5 28. Bxc5 Qxc5 29. c4 Qc8 30. Qb6 Rd7 31. Rb1 h6 32. Ne6 Ne4 33. Qb4 a5 34. Qe1 Nc5 35. Rxa5 Rxa5 36. Qxa5 Nxe6 37. dxe6 Re7 38. Rb6 1/2-1/2

[Event "Hilversum op-A"]
[Site "Hilversum"]
[Date "2010.06.26"]
[Round "1"]
[White "Landa, Konstantin"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "2655"]
[BlackElo "2083"]
[PlyCount "67"]
[EventDate "2010.06.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c6 3. c4 e6 4. Qc2 Nf6 5. g3 Bd6 6. Bg2 0-0 7. 0-0 Nbd7 8. Rd1 Qe7 9. Bg5 h6 10. Bxf6 Nxf6 11. Nbd2 b6 12. e4 dxe4 13. Nxe4 Bb7 14. Ne5 Nxe4 15. Qxe4 Rac8 16. c5 Bxe5 17. Qxe5 Rfe8 18. b4 Ba6 19. Rac1 Bb5 20. Qe3 Qb7 21. Rc3 a5 22. bxa5 bxa5 23. Be4 Red8 24. Bc2 a4 25. Qe4 g6 26. Qf4 Kg7 27. Qe5+ Kh7 28. Qf6 Rg8 29. h4 Rce8 30. h5 Qe7 31. Qe5 Qg5 32. Rf3 f5 33. hxg6+ Rxg6 34. Bxf5 1-0

[Event "Bossum Pinkster op-A"]
[Site "Bossum"]
[Date "2010.05.23"]
[Round "4"]
[White "Ammerlaan, Richard"]
[Black "Wieringa, Helmer"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "2192"]
[PlyCount "97"]
[EventDate "2010.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. c4 c6 2. d4 d5 3. Nc3 Nf6 4. Bg5 e6 5. e3 Be7 6. Nf3 0-0 7. cxd5 exd5 8. Bd3 Nbd7 9. Qc2 Re8 10. 0-0-0 Nf8 11. Kb1 g6 12. h3 Ne6 13. Bh4 Ng7 14. g4 Be6 15. Ne5 Nd7 16. Bg3 c5 17. dxc5 Nxc5 18. Bb5 Rc8 19. Bxe8 Nxe8 20. Qd2 Nf6 21. f3 a6 22. Nd3 Nfd7 23. Nxc5 Rxc5 24. h4 Bf6 25. h5 Qa5 26. Ne2 d4 27. Qxa5 Rxa5 28. Nxd4 Bxa2+ 29. Kc2 Rc5+ 30. Kd3 Rd5 31. hxg6 hxg6 32. Ke2 Bc4+ 33. Kf2 Nc5 34. Kg2 a5 35. Rd2 b5 36. Rhd1 a4 37. Be1 Re5 38. Kf2 Re8 39. Ne2 Ra8 40. e4 Nb3 41. Rc2 Na5 42. Bc3 Kg7 43. Bxf6+ Kxf6 44. Rd7 Nb3 45. Rd6+ Kg7 46. Nc3 b4 47. Na2 Be6 48. Nxb4 g5 49. Ra6 1/2-1/2

[Event "Bossum Pinkster op-A"]
[Site "Bossum"]
[Date "2010.05.23"]
[Round "5"]
[White "Wieringa, Helmer"]
[Black "Bakker, Guido"]
[Result "0-1"]
[ECO "B78"]
[BlackElo "2144"]
[PlyCount "52"]
[EventDate "2010.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 0-0 9. Bc4 Bd7 10. g4 Rc8 11. Bb3 Ne5 12. 0-0-0 b5 13. Qg2 b4 14. Nb1 a5 15. a4 Qe8 16. g5 Nh5 17. Nb5 Bxb5 18. axb5 Qxb5 19. Rd5 Nd3+ 20. Kd2 Nc5 21. Bxc5 dxc5 22. Qf1 Qc6 23. Bc4 Bxb2 24. Bb5 Qa8 25. Ba4 c4 26. f4 e6 0-1

[Event "Bossum Pinkster op-A"]
[Site "Bossum"]
[Date "2010.05.22"]
[Round "2"]
[White "Otte, Marijn Willem"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2314"]
[PlyCount "101"]
[EventDate "2010.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Bc5 3. Nf3 Nc6 4. d3 Nf6 5. Bb3 d6 6. c3 Bb6 7. Nbd2 Be6 8. Bc2 Ne7 9. Nc4 c6 10. Qe2 Ng6 11. h3 Qe7 12. a4 h6 13. a5 Bc7 14. Be3 d5 15. Ncd2 Nd7 16. d4 dxe4 17. Nxe5 Ngxe5 18. dxe5 Bxe5 19. a6 b6 20. Bxe4 Rc8 21. Nf3 Bf6 22. Nd4 Bxd4 23. Bxd4 0-0 24. Bc2 Rfe8 25. 0-0 c5 26. Be3 Bd5 27. Rfe1 Rc6 28. Rad1 Rd6 29. Qd3 g6 30. c4 Ne5 31. Qc3 Bc6 32. Rxd6 Qxd6 33. Bxh6 Kh7 34. Bd2 Qd4 35. b3 f6 36. Qxd4 cxd4 37. f4 Nf7 38. Rxe8 Bxe8 39. Bc1 Bd7 40. Bb2 Bc8 41. Bxd4 Kg7 42. c5 bxc5 43. Bxc5 Bxa6 44. Bxa7 Nd6 45. Kf2 f5 46. g4 Ne4+ 47. Ke3 Bb7 48. gxf5 gxf5 49. b4 Kh6 50. Kd4 Kg6 51. Ke5 1-0

[Event "Haarlem AKN op 06th"]
[Site "Haarlem"]
[Date "1997.??.??"]
[Round "5"]
[White "Drel, Nicolai"]
[Black "Wieringa, Helmer"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "1835"]
[BlackElo "2130"]
[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 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. 0-0 Be7 5. Ng5 d5 6. exd5 Nd4 7. Re1 Bd6 8. f4 0-0 9. fxe5 Bc5 10. Kh1 Nxd5 11. d3 Ne6 12. Nxe6 fxe6 13. d4 Bb6 14. Nc3 Qh4 15. Nxd5 exd5 16. Be3 Bg4 17. Qd2 a5 18. Rf1 a4 19. a3 Be6 20. Bd3 Bg4 21. Rxf8+ Rxf8 22. Rf1 Rxf1+ 23. Bxf1 c6 24. c3 Bd8 25. Bd3 Be7 26. Kg1 Be6 27. Qf2 Qh5 28. Qe2 Qf7 1/2-1/2

[Event "Haarlem AKN op 06th"]
[Site "Haarlem"]
[Date "1997.??.??"]
[Round "3"]
[White "Sternau, Almar"]
[Black "Wieringa, Helmer"]
[Result "0-1"]
[ECO "C78"]
[WhiteElo "1750"]
[BlackElo "2130"]
[PlyCount "40"]
[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 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Bb7 7. d3 Bc5 8. Nc3 d6 9. a4 b4 10. Nd5 Na5 11. Ba2 Nxd5 12. exd5 0-0 13. Re1 b3 14. cxb3 Bxd5 15. b4 Bxf3 16. Qxf3 Bxb4 17. Re4 Nc6 18. Qh5 Nd4 19. Rh4 h6 20. Bg5 Qxg5 0-1

[Event "Haarlem AKN op 06th"]
[Site "Haarlem"]
[Date "1997.??.??"]
[Round "6"]
[White "Wieringa, Helmer"]
[Black "Goormachtigh, Johan"]
[Result "1-0"]
[ECO "B81"]
[WhiteElo "2130"]
[BlackElo "2265"]
[PlyCount "57"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Nc6 7. g5 Nd7 8. Bg2 a6 9. h4 Nde5 10. f4 Nxd4 11. Qxd4 Nc6 12. Qf2 b5 13. Be3 Rb8 14. 0-0-0 Qa5 15. Kb1 b4 16. Ne2 Be7 17. Nc1 Bd7 18. h5 Qc7 19. Nd3 a5 20. Qg3 Na7 21. Bd4 Rg8 22. Bxa7 Qxa7 23. f5 a4 24. Nf4 a3 25. g6 Bf6 26. gxf7+ Kxf7 27. fxe6+ Bxe6 28. Nxe6 axb2 29. Qb3 1-0

[Event "Haarlem AKN op 06th"]
[Site "Haarlem"]
[Date "1997.??.??"]
[Round "1"]
[White "Wieringa, Helmer"]
[Black "Rausis, Igors"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "2130"]
[BlackElo "2470"]
[PlyCount "72"]
[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. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. c4 Qb6 6. Nb3 d6 7. Bd3 Nc6 8. 0-0 Nf6 9. Nc3 Bg4 10. Qe1 Ne5 11. Be2 Bxe2 12. Qxe2 Qa6 13. Nd2 Rc8 14. b3 Nh5 15. Qe3 0-0 16. Bb2 e6 17. Kh1 Rfe8 18. f4 Nc6 19. Nf3 Qb6 20. Qd2 Qa5 21. g3 a6 22. Rac1 Nb4 23. a4 Qb6 24. Ba3 Nc6 25. Rb1 Red8 26. f5 Nd4 27. Qf2 gxf5 28. exf5 Qc6 29. fxe6 fxe6 30. Nd5 exd5 31. Nxd4 Qe8 32. Rbe1 Qg6 33. Ne6 Re8 34. cxd5 Rc2 35. Qf5 Nxg3+ 36. hxg3 Qh6+ 0-1

[Event "Haarlem AKN op 06th"]
[Site "Haarlem"]
[Date "1997.??.??"]
[Round "4"]
[White "Wieringa, Helmer"]
[Black "Zwinkels, Wim"]
[Result "1-0"]
[ECO "B93"]
[WhiteElo "2130"]
[BlackElo "1860"]
[PlyCount "71"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. a4 e5 8. Nf3 Nbd7 9. Bd3 Be7 10. 0-0 0-0 11. Qe1 Re8 12. Kh1 exf4 13. Bxf4 Ne5 14. Nxe5 dxe5 15. Bg5 Be6 16. Qh4 Qd8 17. Rad1 Nd7 18. Bxe7 Qxe7 19. Qxe7 Rxe7 20. Nd5 Bxd5 21. exd5 g6 22. d6 Re6 23. Be4 Rb8 24. Bd5 Rf6 25. c4 Kg7 26. a5 Rxf1+ 27. Rxf1 f5 28. b4 Kf6 29. g4 Nf8 30. h4 h6 31. gxf5 gxf5 32. Be4 f4 33. c5 Ke6 34. Rg1 Nd7 35. Rg7 Nf6 36. Re7# 1-0

[Event "NED-chT 9697"]
[Site "Netherlands"]
[Date "1996.??.??"]
[Round "?"]
[White "Thesing, Matthias"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "C48"]
[WhiteElo "2415"]
[PlyCount "77"]
[EventDate "1996.??.??"]
[EventType "team-tourn"]
[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. Nc3 Nf6 3. Nf3 Nc6 4. Bb5 Nd4 5. Bc4 d6 6. Nxd4 exd4 7. Nd5 Be6 8. 0-0 c6 9. Re1 Be7 10. Nxe7 Qxe7 11. Bf1 0-0-0 12. d3 Rdg8 13. f4 h6 14. c3 dxc3 15. bxc3 g5 16. f5 Bd7 17. Rb1 c5 18. c4 h5 19. Bb2 Rh6 20. d4 Ne8 21. Qb3 Qd8 22. Qa3 Qb6 23. d5 Qa6 24. Qxa6 bxa6 25. Re3 Kc7 26. Ra3 Bc8 27. Bd3 f6 28. Bc3 Kd8 29. Rb8 Nc7 30. Ba5 Rh7 31. Rab3 Rd7 32. Bc2 Ke7 33. Rh3 h4 34. Ba4 Rgd8 35. g3 Rh8 36. gxh4 gxh4 37. Kf2 Rg8 38. Rxh4 Rg7 39. Rxc8 1-0

[Event "NED-chT 9697"]
[Site "Netherlands"]
[Date "1996.??.??"]
[Round "?"]
[White "Van Halderen, Herman"]
[Black "Wieringa, Helmer"]
[Result "0-1"]
[ECO "A12"]
[PlyCount "56"]
[EventDate "1996.??.??"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. e3 Nf6 4. b3 h6 5. Bb2 Bf5 6. Be2 e6 7. 0-0 Bd6 8. d4 0-0 9. Nc3 a6 10. Rc1 b5 11. Bd3 Bxd3 12. Qxd3 Nbd7 13. e4 Bf4 14. e5 Bxc1 15. Bxc1 Nh7 16. Ne2 bxc4 17. bxc4 Qa5 18. cxd5 cxd5 19. Nf4 Rfc8 20. Nh4 Qc3 21. Qd1 Qxc1 22. Qxc1 Rxc1 23. Rxc1 g5 24. Rc7 Ndf8 25. Nf5 exf5 26. Nxd5 Ne6 27. Rd7 Nxd4 28. h3 Nc6 0-1

[Event "NED tt"]
[Site "Netherlands"]
[Date "1996.??.??"]
[Round "8"]
[White "Wieringa, Helmer"]
[Black "Felten, Nico"]
[Result "1-0"]
[ECO "B93"]
[PlyCount "53"]
[EventDate "1996.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 e5 8. Nf3 Be7 9. 0-0 0-0 10. fxe5 dxe5 11. Qe1 Nbd7 12. Nh4 Re8 13. Nf5 Bf8 14. Qh4 Nc5 15. Nh6+ Kh8 16. Rxf6 Nxd3 17. cxd3 gxf6 18. Nd5 Qc2 19. Qxf6+ Bg7 20. Bg5 Be6 21. Qf3 Qxb2 22. Rf1 Bxd5 23. exd5 e4 24. Qg3 exd3 25. Bf6 Qxf6 26. Rxf6 Bxh6 27. Rxh6 1-0

[Event "NED-chT 9697"]
[Site "Netherlands"]
[Date "1996.??.??"]
[Round "?"]
[White "Wieringa, Helmer"]
[Black "Noomen, Jeroen"]
[Result "0-1"]
[ECO "C85"]
[PlyCount "82"]
[EventDate "1996.??.??"]
[EventType "team-tourn"]
[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. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Bxc6 dxc6 7. d3 Nd7 8. Nbd2 0-0 9. Nc4 f6 10. Nh4 g6 11. g3 Nc5 12. Ng2 Be6 13. b3 Qd7 14. Bb2 Bxc4 15. bxc4 Na4 16. Bc1 b5 17. Bh6 Rfd8 18. Ne3 Qh3 19. Ng4 f5 20. Nxe5 Qxh6 21. Nxc6 Re8 22. cxb5 axb5 23. e5 Nc3 24. Qf3 Bf8 25. Nd4 c5 26. Ne2 Nxe2+ 27. Qxe2 Qg7 28. f4 Qf7 29. c3 Qd5 30. Rfe1 b4 31. c4 Qd4+ 32. Kg2 Ra3 33. Rad1 Rd8 34. e6 Be7 35. Qf3 Rxd3 36. Qb7 Rxd1 37. Rxd1 Qxd1 38. Qxe7 Qe2+ 39. Kh3 Qh5+ 40. Kg2 Rd2+ 41. Kf1 Qd1# 0-1

[Event "NED-chT 9697"]
[Site "Netherlands"]
[Date "1996.??.??"]
[Round "?"]
[White "Wieringa, Helmer"]
[Black "Van Rijn, Wouter"]
[Result "1-0"]
[ECO "B33"]
[BlackElo "2120"]
[PlyCount "83"]
[EventDate "1996.??.??"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 0-0 12. Nc2 Bg5 13. h4 Bh6 14. g4 g6 15. Nce3 Bxe3 16. Nxe3 Be6 17. Qd2 Qa5 18. Nf5 b4 19. Qh6 Bxf5 20. gxf5 bxc3 21. b4 Qxb4 22. Bd3 Nd4 23. Rb1 Qa5 24. Kf1 Qxa2 25. Rd1 Ra7 26. h5 Qa5 27. hxg6 fxg6 28. Bc4+ d5 29. Bxd5+ Qxd5 30. exd5 Nxf5 31. Qh3 c2 32. Rc1 Nd4 33. Qe3 Raf7 34. Rh2 Re8 35. Qd3 Rb7 36. Rxc2 Nxc2 37. Qxc2 Rd7 38. Qc4 Red8 39. f3 Kg7 40. Rd2 Rd6 41. Qe4 Re8 42. Rc2 1-0

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "1"]
[White "Clausen, Co"]
[Black "Wieringa, Helmer"]
[Result "0-1"]
[ECO "D10"]
[PlyCount "74"]
[EventDate "1995.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Bg5 dxc4 5. e4 b5 6. Bxf6 exf6 7. a3 Be7 8. Nf3 0-0 9. Be2 Nd7 10. 0-0 Nb6 11. Re1 Re8 12. Bf1 Bg4 13. Be2 a5 14. Nd2 Bxe2 15. Nxe2 Bf8 16. f3 Qd7 17. Qc2 f5 18. Red1 fxe4 19. fxe4 f5 20. Nf3 Rxe4 21. Ng3 Rae8 22. Nxf5 g6 23. Ng3 Bg7 24. Qd2 Nd5 25. Re1 Rxe1+ 26. Rxe1 c5 27. dxc5 c3 28. Qc2 cxb2 29. c6 Qd6 30. Rd1 Qe6 31. Qb3 Qe3+ 32. Qxe3 Nxe3 33. Re1 Rc8 34. Nd2 Rxc6 35. Rxe3 Bd4 36. Kf2 Rc2 37. Kf3 Bxe3 0-1

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "3"]
[White "Cliteur, Olaf"]
[Black "Wieringa, Helmer"]
[Result "0-1"]
[ECO "C44"]
[PlyCount "64"]
[EventDate "1995.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. Nf3 Nc6 4. c3 d5 5. exd5 Qxd5 6. cxd4 Bb4+ 7. Nc3 Bg4 8. Be2 Bxf3 9. Bxf3 Qc4 10. Bxc6+ bxc6 11. Qe2+ Qxe2+ 12. Kxe2 0-0-0 13. Be3 Ne7 14. Rhd1 Rhe8 15. Rd3 h6 16. Rad1 f5 17. f4 Ng8 18. Kf3 Nf6 19. a3 Bxc3 20. bxc3 Ne4 21. c4 Nd6 22. Rc1 a6 23. c5 Ne4 24. Rb3 Rxd4 25. Rc2 Ra4 26. Rcb2 Nf6 27. Rc2 Ng4 28. Bg1 Re1 29. Bf2 Ra1 30. Rcc3 Nxh2+ 31. Kg3 Ng4 32. Be1 Rxe1 0-1

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "5"]
[White "De Saegher, Chris"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "D13"]
[WhiteElo "2235"]
[PlyCount "98"]
[EventDate "1995.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nf3 Nc6 5. Nc3 Nf6 6. Bf4 a6 7. Rc1 Ne4 8. Ne5 Nxc3 9. Rxc3 Nxe5 10. Bxe5 Bd7 11. Qb3 Bc6 12. e3 e6 13. a3 f6 14. Bg3 Be7 15. Bd3 Qd7 16. Qc2 Kf7 17. 0-0 g6 18. Rc1 Rhc8 19. Qe2 Bd8 20. h4 f5 21. h5 Ba4 22. Be5 Rxc3 23. Rxc3 Rc8 24. g4 Rxc3 25. bxc3 Bb5 26. hxg6+ hxg6 27. gxf5 exf5 28. c4 dxc4 29. Bxc4+ Bxc4 30. Qxc4+ Qe6 31. Qf1 b5 32. Qh3 Be7 33. Qh7+ Ke8 34. Qh8+ Kd7 35. Qh7 Kc6 36. Qh1+ Qd5 37. Qh7 Qe6 38. f4 a5 39. Qh8 b4 40. Qa8+ Kb5 41. d5 Qd7 42. d6 Bd8 43. Qd5+ Ka4 44. axb4 axb4 45. Bd4 Ba5 46. Qa2+ Kb5 47. Qd5+ Ka4 48. Bc5 Qg7 49. Qe5 Qb7 1-0

[Event "NED-chT 9596"]
[Site "Netherlands"]
[Date "1995.??.??"]
[Round "?"]
[White "Ellenbroek, Ton"]
[Black "Wieringa, Helmer"]
[Result "0-1"]
[ECO "D45"]
[WhiteElo "2140"]
[PlyCount "124"]
[EventDate "1995.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. b3 0-0 8. Be2 Qe7 9. 0-0 dxc4 10. bxc4 e5 11. a4 Re8 12. c5 Bc7 13. Ba3 e4 14. Nd2 Nf8 15. Rae1 Ng6 16. f3 exf3 17. Bxf3 Nh4 18. e4 Qd8 19. d5 cxd5 20. exd5 Bf5 21. Rxe8+ Qxe8 22. Nde4 Be5 23. Nxf6+ Bxf6 24. Qd2 Bxc3 25. Qxc3 Qxa4 26. Bb2 f6 27. d6 Be4 28. Ra1 Qc2 29. Qxc2 Nxf3+ 30. gxf3 Bxc2 31. Re1 Ba4 32. Re7 Bc6 33. Kf2 Kf8 34. Rc7 a5 35. Ba3 Rd8 36. f4 Rd7 37. Rc8+ Kf7 38. Ra8 a4 39. Ke3 Ke6 40. Rh8 h6 41. Ra8 Kd5 42. Kd3 b6 43. Rb8 bxc5 44. Rb1 Rxd6 45. Kc3 Ke4 46. Bxc5 Rd3+ 47. Kb4 Rd7 48. Rg1 Rf7 49. Bd6 Kf5 50. Kc5 Be4 51. Kb4 Bc2 52. Rc1 Bb3 53. Rc8 g6 54. Rh8 h5 55. h3 Rd7 56. Kc5 Ra7 57. Rf8 a3 58. Be5 Rf7 59. Rxf7 Bxf7 60. Bc3 a2 61. Kb4 h4 62. Ka3 Kxf4 0-1

[Event "NED-chT 9596"]
[Site "Netherlands"]
[Date "1995.??.??"]
[Round "?"]
[White "Konings, Leon"]
[Black "Wieringa, Helmer"]
[Result "1/2-1/2"]
[ECO "D10"]
[WhiteElo "2230"]
[PlyCount "108"]
[EventDate "1995.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Bf4 Nc6 6. e3 a6 7. Bd3 Qb6 8. a3 Bg4 9. f3 Bh5 10. Nge2 Bg6 11. b4 Bxd3 12. Qxd3 e6 13. 0-0 Nh5 14. Bg5 Bd6 15. g4 Nf6 16. b5 Na5 17. bxa6 Qxa6 18. Nb5 Nc4 19. Rfb1 Rc8 20. Nxd6+ Nxd6 21. Qxa6 bxa6 22. Rb6 Kd7 23. Rxa6 Ra8 24. Rxa8 Rxa8 25. Bxf6 gxf6 26. Kf2 Ra4 27. Nf4 Nc4 28. Nh5 Ke7 29. Rb1 Rxa3 30. Rb7+ Kf8 31. Nxf6 Nxe3 32. Nxh7+ Kg7 33. Ng5 Nc2 34. Nxe6+ Kf6 35. Nf4 Nxd4 36. Nxd5+ Ke5 37. Ne3 Ra2+ 38. Kg3 Ne2+ 39. Kh4 f6 40. Rb4 Nd4 41. f4+ Kxf4 42. Rxd4+ Kxe3 43. Rd6 f5 44. gxf5 Kf4 45. Kh5 Kxf5 46. h4 Ra8 47. Rh6 Rg8 48. Rh7 Kf6 49. Ra7 Rh8+ 50. Kg4 Rg8+ 51. Kf4 Kg6 52. Ra5 Kh6 53. Kf5 Rf8+ 54. Ke6 Rf2 1/2-1/2

[Event "NED-chT 9596"]
[Site "Netherlands"]
[Date "1995.??.??"]
[Round "?"]
[White "Oosterom, Erik"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "D48"]
[WhiteElo "2205"]
[PlyCount "43"]
[EventDate "1995.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 c4 11. dxe6 fxe6 12. Bc2 Qc7 13. 0-0 Bc5 14. Qe2 Bb7 15. e5 Ng4 16. Ne4 Ngxe5 17. Bf4 0-0 18. Nxe5 Nxe5 19. Nxc5 Rxf4 20. Nxe6 Re8 21. Nxc7 Nf3+ 22. Qxf3 1-0

[Event "NED-chT 9596"]
[Site "Netherlands"]
[Date "1995.??.??"]
[Round "?"]
[White "Roele, Jan"]
[Black "Wieringa, Helmer"]
[Result "1/2-1/2"]
[ECO "B14"]
[PlyCount "55"]
[EventDate "1995.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. c4 c6 2. e4 d5 3. exd5 cxd5 4. d4 Nf6 5. Nc3 e6 6. Nf3 Be7 7. c5 0-0 8. b4 Ne4 9. Qc2 f5 10. Bf4 g5 11. Bxb8 Rxb8 12. Be2 Bf6 13. 0-0 Bd7 14. Ne5 Be8 15. f3 Nxc3 16. Qxc3 Bxe5 17. dxe5 f4 18. b5 Bg6 19. Qd4 Qc7 20. Rfe1 Qg7 21. a4 Rf5 22. Bd3 Rf7 23. Ra3 h5 24. Be2 Rf5 25. Bd3 Rf7 26. Be2 Rf5 27. Bd1 Kh7 28. Rc3 1/2-1/2

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "6"]
[White "Wieringa, Helmer"]
[Black "Dambacher, Martijn"]
[Result "0-1"]
[ECO "B81"]
[PlyCount "60"]
[EventDate "1995.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 h6 7. h4 Nc6 8. Rg1 Nd7 9. g5 hxg5 10. hxg5 g6 11. Be3 a6 12. Qd2 Qc7 13. f4 b6 14. Qf2 Bb7 15. f5 Nxd4 16. Bxd4 e5 17. Be3 Nc5 18. Bg2 0-0-0 19. 0-0-0 gxf5 20. exf5 e4 21. Bxc5 dxc5 22. Bxe4 Bd6 23. Bxb7+ Qxb7 24. g6 fxg6 25. Rxg6 Be5 26. Re1 Rh1 27. Re6 Qf3 28. Qxf3 Rxe1+ 29. Nd1 Rdxd1+ 30. Qxd1 Bf4+ 0-1

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "2"]
[White "Wieringa, Helmer"]
[Black "Glek, Igor Vladimirovich"]
[Result "0-1"]
[ECO "C01"]
[BlackElo "2590"]
[PlyCount "68"]
[EventDate "1995.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 c5 5. c3 Nc6 6. Be3 cxd4 7. cxd4 Nf6 8. h3 Bd6 9. Nc3 0-0 10. Qf3 h6 11. Nge2 Be6 12. 0-0 Nh7 13. Bxh7+ Kxh7 14. Kh1 g5 15. Qh5 f5 16. f4 Bf7 17. Qf3 g4 18. hxg4 Qh4+ 19. Qh3 Qxg4 20. Ng1 Rae8 21. Rae1 Nb4 22. Re2 Qxh3+ 23. gxh3 Bh5 24. Nf3 Rg8 25. Bd2 Rxe2 26. Nxe2 Nxa2 27. Neg1 Nb4 28. Ne5 Rc8 29. Bc3 Na2 30. Ra1 Nxc3 31. bxc3 a6 32. Ra5 Bxe5 33. fxe5 f4 34. Kg2 f3+ 0-1

[Event "NED-chT 9596"]
[Site "Netherlands"]
[Date "1995.??.??"]
[Round "?"]
[White "Wieringa, Helmer"]
[Black "Hensbergen, Willem"]
[Result "1/2-1/2"]
[ECO "B04"]
[PlyCount "58"]
[EventDate "1995.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Bc4 Nb6 6. Bb3 Bg7 7. 0-0 0-0 8. Qe2 Nc6 9. h3 Bf5 10. a4 dxe5 11. dxe5 Nd7 12. e6 Bxe6 13. Bxe6 fxe6 14. Qxe6+ Kh8 15. Rd1 Nc5 16. Qe2 Qc8 17. Ra3 e5 18. Qc4 Ne6 19. b4 Ncd4 20. Nxd4 Nxd4 21. Be3 c6 22. Bxd4 exd4 23. Nd2 a5 24. Rb3 b5 25. axb5 cxb5 26. Qxc8 Rfxc8 27. bxa5 Rxa5 28. Nf3 Rxc2 29. Nxd4 Bxd4 1/2-1/2

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "4"]
[White "Wieringa, Helmer"]
[Black "Overeem, Marc"]
[Result "1-0"]
[ECO "C67"]
[PlyCount "77"]
[EventDate "1995.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Nxe4 5. d4 Be7 6. Re1 Nd6 7. Bxc6 dxc6 8. dxe5 Nf5 9. Qxd8+ Bxd8 10. a4 0-0 11. b3 b6 12. Nbd2 c5 13. Bb2 Bb7 14. e6 fxe6 15. Rxe6 Nh4 16. Nxh4 Bxh4 17. g3 Rad8 18. Nf1 Bf6 19. Bxf6 Rxf6 20. Rxf6 gxf6 21. f4 Be4 22. Rc1 a5 23. Kf2 c4 24. Ke3 Re8 25. Kd4 c5+ 26. Kxc4 Bf3 27. Kb5 Re6 28. Nd2 Be2+ 29. c4 Bh5 30. f5 Re2 31. Rc2 Rxh2 32. Kxb6 Bd1 33. Rb2 Rg2 34. Kxc5 Rxg3 35. Kd4 Rg5 36. Ke4 h5 37. c5 h4 38. Ke3 h3 39. Nf1 1-0

[Event "NED-chT 9596"]
[Site "Netherlands"]
[Date "1995.??.??"]
[Round "?"]
[White "Wieringa, Helmer"]
[Black "Schippers, Paul"]
[Result "1-0"]
[ECO "C26"]
[PlyCount "65"]
[EventDate "1995.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 d6 2. Nc3 Nf6 3. g3 e5 4. Bg2 c6 5. d4 Qa5 6. f4 Nbd7 7. Be3 b5 8. Nge2 Bb7 9. 0-0 a6 10. a3 Be7 11. h3 h5 12. Qe1 Qc7 13. Qf2 Rc8 14. Bf3 g6 15. dxe5 dxe5 16. Bg2 Rh7 17. Rad1 Ng8 18. Nc1 f6 19. Qe2 Bc5 20. h4 Bxe3+ 21. Qxe3 Qb6 22. Qxb6 Nxb6 23. Bh3 Rd8 24. Rxd8+ Kxd8 25. fxe5 Ke7 26. Nd3 Bc8 27. Bxc8 Nxc8 28. exf6+ Nxf6 29. Ne5 Ke6 30. Nxc6 Rd7 31. Nb4 a5 32. Nbd5 Nxe4 33. Nf4+ 1-0

[Event "NED-chT 9596"]
[Site "Netherlands"]
[Date "1995.??.??"]
[Round "?"]
[White "Wieringa, Helmer"]
[Black "Schrama, Paul"]
[Result "0-1"]
[ECO "C78"]
[PlyCount "55"]
[EventDate "1995.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Bb7 7. Re1 Bc5 8. c3 d6 9. d4 Bb6 10. a4 bxa4 11. Rxa4 h6 12. Nbd2 0-0 13. Nf1 Re8 14. Ng3 a5 15. Bxh6 gxh6 16. Qd2 Kh7 17. Nf5 Ng8 18. Re3 Qf6 19. N3h4 Nce7 20. Rg3 Nxf5 21. Nxf5 Bxe4 22. Rg7+ Kh8 23. Rxf7 Qg5 24. Qxg5 hxg5 25. h4 Rf8 26. Ng3 Rxf7 27. Bxf7 Bc6 28. Ra1 0-1

[Event "NED-chT 9596"]
[Site "Netherlands"]
[Date "1995.??.??"]
[Round "?"]
[White "Wieringa, Helmer"]
[Black "Van de Pol, Martijn"]
[Result "1-0"]
[ECO "B45"]
[PlyCount "52"]
[EventDate "1995.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. Bd3 0-0 10. 0-0 h6 11. h3 dxe4 12. Nxe4 Ne5 13. Nxf6+ Qxf6 14. Be4 Rd8 15. Qe2 Rb8 16. a4 b6 17. c3 Bb7 18. Bxb7 Rxb7 19. a5 bxa5 20. Rxa5 Nd3 21. Ra3 Nxc1 22. Rxc1 Rbd7 23. b4 Qf4 24. Rf1 Rd2 25. Qe3 Qxe3 26. fxe3 R8d7 1-0

[Event "NED-chT 9596"]
[Site "Netherlands"]
[Date "1995.??.??"]
[Round "?"]
[White "Wieringa, Helmer"]
[Black "Van der Wal, Jannes"]
[Result "1-0"]
[ECO "B93"]
[BlackElo "2270"]
[PlyCount "65"]
[EventDate "1995.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e5 7. Nf3 Nbd7 8. a4 Be7 9. Bc4 0-0 10. 0-0 Qc7 11. Qe2 b6 12. Nh4 exf4 13. Bxf4 Ne5 14. Ba2 Bg4 15. Qf2 Be6 16. h3 Bxa2 17. Rxa2 Rfe8 18. Nf5 Bf8 19. Bg5 Ned7 20. Kh1 Qc4 21. Ne3 Qe6 22. Raa1 Rac8 23. Rae1 Qe5 24. Bxf6 Qxf6 25. Qe2 Qd4 26. Ned5 Rc4 27. Rd1 Qc5 28. Rxf7 Rxc3 29. Rxd7 Rxc2 30. Qg4 Qf2 31. b4 h5 32. Qg6 Re5 33. Rg1 1-0

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "5"]
[White "Bolster, Richard"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "C30"]
[PlyCount "111"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. f4 Bc5 3. Qh5 d6 4. fxe5 g6 5. Qf3 dxe5 6. Bc4 Qh4+ 7. g3 Qf6 8. Nc3 c6 9. d3 Be6 10. Qxf6 Nxf6 11. Bxe6 fxe6 12. Na4 Be7 13. Nf3 Bd6 14. 0-0 Nbd7 15. Kg2 h6 16. Bd2 Ke7 17. Nc3 b5 18. Nd1 c5 19. Ne3 g5 20. b3 a6 21. Bc3 Rhg8 22. a4 Rgc8 23. axb5 axb5 24. Rxa8 Rxa8 25. Ra1 Rxa1 26. Bxa1 Kf7 27. Bb2 g4 28. Nd2 Nb8 29. Nb1 Nc6 30. Na3 Na7 31. c4 b4 32. Nb5 Nxb5 33. cxb5 Ke7 34. Nc4 Nd7 35. Bc1 Nf8 36. Bxh6 Ng6 37. Bg5+ Kd7 38. Bf6 Bb8 39. h3 gxh3+ 40. Kxh3 Ke8 41. Kg4 Kf7 42. Bd8 Nf8 43. Bg5 Kg6 44. Be3 Nd7 45. b6 Nf6+ 46. Kh4 Nd7 47. g4 Kf7 48. g5 Kg6 49. Kg4 Kg7 50. Kh5 Kh7 51. g6+ Kg7 52. Bh6+ Kg8 53. Kg5 Kh8 54. g7+ Kh7 55. g8Q+ Kxg8 56. Kg6 1-0

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "1"]
[White "Goudsmit, Erik"]
[Black "Wieringa, Helmer"]
[Result "0-1"]
[ECO "C56"]
[PlyCount "54"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 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 Bb6 12. fxg7 Rg8 13. g4 Qg6 14. Nxe6 fxe6 15. Bg5 Rxg7 16. Nf6+ Kf7 17. Ne4 h6 18. Qf3+ Kg8 19. Nf6+ Kh8 20. Rxe6 Qxg5 21. Rae1 Rf8 22. Re8 Rgf7 23. R1e6 d3 24. cxd3 Bd4 25. Rxf8+ Rxf8 26. h4 Qg7 27. g5 Bxf6 0-1

[Event "NED-chTB 9495"]
[Site "Netherlands"]
[Date "1994.??.??"]
[Round "2"]
[White "Kamstra, Cor"]
[Black "Wieringa, Helmer"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "2360"]
[PlyCount "88"]
[EventDate "1994.??.??"]
[EventType "team-tourn"]
[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 c6 3. Nc3 Nf6 4. Bg5 dxc4 5. a4 Qa5 6. Bd2 e5 7. dxe5 Qxe5 8. Nf3 Qh5 9. Bg5 Nbd7 10. Qd4 Bc5 11. Qxc4 0-0 12. e3 h6 13. Bxf6 Nxf6 14. Be2 Be6 15. Qf4 Qf5 16. Qc7 Qc2 17. 0-0 Qxb2 18. Rfc1 Qb6 19. Qe5 a5 20. Ne4 Nxe4 21. Qxe4 Bd5 22. Qf5 Rfe8 23. Bd3 g6 24. Qf4 Rxe3 25. Rab1 Qa7 26. Bxg6 Rxf3 27. gxf3 Bxf2+ 28. Kg2 fxg6 29. Qxh6 Bd4 30. Qxg6+ Bg7 31. Re1 b6 32. Re8+ Rxe8 33. Qxe8+ Kh7 34. Re1 Qf7 35. Qe3 c5 36. Rd1 Bd4 37. Qd3+ Kh8 38. Re1 Kg7 39. h3 Qf6 40. Rb1 Qg5+ 41. Kh2 Qe5+ 42. Kg2 c4 43. Qd2 c3 44. Qd3 Qe3 0-1

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "3"]
[White "Pancras, Paul"]
[Black "Wieringa, Helmer"]
[Result "1/2-1/2"]
[ECO "D45"]
[PlyCount "97"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. Be2 0-0 8. 0-0 Qe7 9. b3 Re8 10. e4 dxe4 11. Nxe4 Nxe4 12. Qxe4 e5 13. Bg5 f6 14. Bd3 g6 15. Bh4 exd4 16. Qxe7 Rxe7 17. Nxd4 a5 18. Rae1 a4 19. Rxe7 Bxe7 20. Bc2 axb3 21. Bxb3 Nc5 22. h3 Kf7 23. Bg3 Ne4 24. Rd1 Bc5 25. Kf1 f5 26. Be5 g5 27. f3 Nf6 28. g4 fxg4 29. hxg4 h6 30. Kg2 Nd7 31. Bc7 Nf8 32. Bg3 Bd7 33. Nf5 Bxf5 34. gxf5 h5 35. Bd6 Bxd6 36. Rxd6 c5 37. Rb6 Rb8 38. Rh6 h4 39. Kh3 Kg7 40. Rd6 Re8 41. Kg4 Re1 42. Kxg5 h3 43. Rd2 Rg1+ 44. Kh4 Rg2 45. Rd1 h2 46. Rh1 Kf6 47. Kh3 Rf2 48. Kg3 Rd2 49. Rxh2 1/2-1/2

[Event "NED-chTB 9495"]
[Site "Netherlands"]
[Date "1994.??.??"]
[Round "4"]
[White "Van den Bersselaar, Jeroen"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "E01"]
[PlyCount "101"]
[EventDate "1994.??.??"]
[EventType "team-tourn"]
[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 c6 3. Nf3 e6 4. Nc3 Nf6 5. g3 dxc4 6. Bg2 Nbd7 7. 0-0 b5 8. a4 b4 9. Nb1 Ba6 10. Re1 Be7 11. e4 Qa5 12. Nbd2 0-0 13. Bf1 Rfd8 14. Nxc4 Qh5 15. Qb3 c5 16. Be2 cxd4 17. Nxd4 Bxc4 18. Qxc4 Ne5 19. Bxh5 Nxc4 20. Nc6 Nxh5 21. Nxe7+ Kf8 22. Nc6 Rdc8 23. Nxb4 Ne5 24. Kg2 Rab8 25. f4 Rxb4 26. fxe5 g5 27. Re2 h6 28. Be3 a6 29. a5 Kg7 30. g4 Nf4+ 31. Bxf4 gxf4 32. Kf3 Rcb8 33. Ra2 Kg6 34. Kxf4 R8b5 35. h4 f6 36. h5+ Kf7 37. exf6 Kxf6 38. Rc2 Re5 39. Re2 Rbb5 40. Ra4 Rb3 41. Rc4 Rxa5 42. e5+ Kf7 43. g5 Rab5 44. Rc7+ Kg8 45. gxh6 R5b4+ 46. Kg5 Rf3 47. h7+ Kh8 48. Kh6 Rf8 49. Rg2 a5 50. Rcg7 Rbb8 51. Rg8+ 1-0

[Event "NED-chTB 9495"]
[Site "Netherlands"]
[Date "1994.??.??"]
[Round "6"]
[White "Van der Lijn, Nick"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "D01"]
[PlyCount "99"]
[EventDate "1994.??.??"]
[EventType "team-tourn"]
[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. Nc3 Nf6 3. Bg5 c5 4. Bxf6 gxf6 5. e3 cxd4 6. Qxd4 e6 7. 0-0-0 a6 8. e4 Nc6 9. Qa4 d4 10. Bb5 Bd7 11. Bxc6 Bxc6 12. Qxd4 Qxd4 13. Rxd4 Rg8 14. g3 Bc5 15. Rd3 Bxf2 16. Nge2 f5 17. Rf3 Bc5 18. Rhf1 Rf8 19. Kb1 fxe4 20. Rf6 Rd8 21. a3 a5 22. Rh6 Rh8 23. g4 e3 24. Rh5 b6 25. Ng3 Bg2 26. Re1 Rg8 27. Nce4 Bxe4 28. Nxe4 Be7 29. h3 Rd5 30. Rxd5 exd5 31. Ng3 d4 32. c3 Bh4 33. cxd4 Bxg3 34. Rxe3+ Kd7 35. Rxg3 Kd6 36. Rf3 Ke6 37. Kc2 Rc8+ 38. Rc3 Rg8 39. Re3+ Kd5 40. Kd3 f6 41. Rf3 Ke6 42. Rf5 Rc8 43. Rb5 Rb8 44. Ke4 Kd6 45. Rd5+ Ke6 46. a4 Rc8 47. Rb5 Rb8 48. b4 axb4 49. a5 b3 50. axb6 1-0

[Event "Ghent op 17th"]
[Site "Ghent"]
[Date "1994.??.??"]
[Round "?"]
[White "Wieringa, Helmer"]
[Black "Boey, Josef Martin"]
[Result "0-1"]
[ECO "A00"]
[BlackElo "2305"]
[PlyCount "74"]
[EventDate "1994.07.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nc3 d5 2. e4 d4 3. Nce2 e5 4. Nf3 f6 5. Ng3 Be6 6. c4 Nd7 7. b3 a5 8. a3 Bd6 9. h4 h5 10. Ng1 g6 11. Nh3 Qe7 12. Be2 Nh6 13. f3 c6 14. Nf2 f5 15. exf5 gxf5 16. d3 f4 17. Nge4 Nf5 18. Nxd6+ Qxd6 19. Ne4 Qe7 20. g3 Ne3 21. Bxe3 fxe3 22. Ng5 0-0-0 23. Bf1 Bf5 24. Rh2 Rhg8 25. b4 axb4 26. g4 hxg4 27. fxg4 Bg6 28. Rb1 bxa3 29. Ra2 Nc5 30. Rxa3 e4 31. dxe4 Bxe4 32. Ra8+ Kc7 33. Rxd8 Rxd8 34. Ra1 d3 35. Ra7 d2+ 36. Ke2 Bd3+ 37. Kf3 e2 0-1

[Event "Ghent op 17th"]
[Site "Ghent"]
[Date "1994.??.??"]
[Round "?"]
[White "Wieringa, Helmer"]
[Black "De Wit, Dick"]
[Result "1/2-1/2"]
[ECO "B93"]
[BlackElo "2325"]
[PlyCount "30"]
[EventDate "1994.07.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[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. f4 e5 7. Nf3 Qc7 8. Bd3 Be6 9. 0-0 Nbd7 10. fxe5 Nxe5 11. Nh4 Be7 12. Nf5 Bxf5 13. Rxf5 h6 14. Kh1 g5 15. a3 Rc8 1/2-1/2

[Event "NED-chTB 9495"]
[Site "Netherlands"]
[Date "1994.??.??"]
[Round "8"]
[White "Wieringa, Helmer"]
[Black "Duistermaat, Hans"]
[Result "1-0"]
[ECO "B93"]
[PlyCount "97"]
[EventDate "1994.??.??"]
[EventType "team-tourn"]
[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. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e5 7. Nf3 Nbd7 8. a4 Be7 9. Bc4 0-0 10. Qe2 Qc7 11. 0-0 exf4 12. Bxf4 Ne5 13. Bb3 Bg4 14. h3 Nxf3+ 15. gxf3 Bxh3 16. Rf2 Nh5 17. Be3 d5 18. f4 d4 19. Qxh5 dxe3 20. Rh2 Qxf4 21. Qxh3 h6 22. Rf1 Qe5 23. Qf5 Qxf5 24. Rxf5 b6 25. Kf1 Rad8 26. Bd5 g6 27. Rf3 Bg5 28. Nd1 Kg7 29. Nxe3 f5 30. Ke2 Rfe8 31. c4 f4 32. Nc2 b5 33. axb5 axb5 34. Nd4 Rxe4+ 35. Kd3 Re1 36. Nxb5 Kf6 37. Nd4 Rb8 38. Kc3 h5 39. b4 Bh6 40. b5 Rc1+ 41. Kb2 Rd1 42. Nc6 Rb6 43. Kc3 Rc1+ 44. Kd4 Rb7 45. Ne5 Re7 46. Nd3 Rd1 47. b6 Kf5 48. b7 Rb1 49. c5 1-0

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "2"]
[White "Wieringa, Helmer"]
[Black "Forintos, Gyozo Victor"]
[Result "0-1"]
[ECO "B41"]
[BlackElo "2445"]
[PlyCount "96"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd3 Qc7 8. 0-0 0-0 9. Qe2 d6 10. Bd2 Bc5 11. Nb3 Bd7 12. Kh1 Nc6 13. f4 Nd4 14. Nxd4 Bxd4 15. Rae1 e5 16. f5 h6 17. Rf3 Bxc3 18. Bxc3 b5 19. cxb5 axb5 20. a3 Qb7 21. Rh3 Bc6 22. Bd2 Qe7 23. Bxh6 gxh6 24. Rxh6 Kg7 25. Qe3 Rg8 26. Qg5+ Kf8 27. Qxf6 Qxf6 28. Rxf6 Ke7 29. Rh6 Ra4 30. h3 Rg3 31. Bb1 Rd4 32. f6+ Ke6 33. Kh2 Rg8 34. Ba2+ d5 35. Re2 Kd6 36. g4 Rd3 37. Rh7 Rg6 38. Rxf7 Rh6 39. exd5 Rhxh3+ 40. Kg2 Rhg3+ 41. Kf2 Bd7 42. Rxd7+ Kxd7 43. Bb1 Rgf3+ 44. Kg2 Rg3+ 45. Kh2 Rd4 46. Rxe5 Rgxg4 47. d6 b4 48. axb4 Kxd6 0-1

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "6"]
[White "Wieringa, Helmer"]
[Black "Goes, Dirk"]
[Result "0-1"]
[ECO "B05"]
[PlyCount "82"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. c4 Nb6 6. exd6 cxd6 7. Nc3 Nc6 8. Be3 g6 9. h3 Bf5 10. d5 Nb4 11. Nd4 Bd7 12. a3 Na6 13. b4 Bg7 14. Qb3 0-0 15. Be2 Kh8 16. 0-0 e5 17. dxe6 fxe6 18. Rad1 Nc7 19. Ne4 Ba4 20. Qd3 Bxd1 21. Rxd1 d5 22. cxd5 exd5 23. Nc5 Qc8 24. Bg4 Qe8 25. Nxb7 Nc4 26. Bc1 Qf7 27. f4 Rae8 28. Nc5 Qe7 29. Bf3 Qh4 30. Kh2 Qf2 31. Ncb3 Re1 32. Rxe1 Qxe1 33. Nc2 Qc3 34. Qxc3 Bxc3 35. Ne3 Nb6 36. Nd1 Bf6 37. g3 Nb5 38. Nc5 Nd4 39. Kg2 Re8 40. Bd2 Nxf3 41. Kxf3 Nc4 0-1

[Event "NED-chTB 9495"]
[Site "Netherlands"]
[Date "1994.??.??"]
[Round "3"]
[White "Wieringa, Helmer"]
[Black "Schouten, Henk"]
[Result "1-0"]
[ECO "B93"]
[PlyCount "70"]
[EventDate "1994.??.??"]
[EventType "team-tourn"]
[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. f4 e5 7. Nf3 Qc7 8. a4 Be7 9. Bd3 b6 10. 0-0 Bb7 11. Qe1 Nbd7 12. Nh4 g6 13. f5 0-0 14. Qg3 Nh5 15. Qh3 Bf6 16. Bh6 Bg7 17. Bxg7 Kxg7 18. fxg6 fxg6 19. Nf5+ Kh8 20. Ne3 Nf4 21. Qh4 Qd8 22. Qxd8 Raxd8 23. Bc4 Nf6 24. Bd5 N4xd5 25. exd5 Rc8 26. Rfd1 Rc5 27. Ra3 Rfc8 28. Rb3 b5 29. axb5 axb5 30. Rxb5 Rxb5 31. Nxb5 Ne4 32. c4 Ba6 33. Ra1 Bxb5 34. cxb5 Rc5 35. Ra5 Rc1+ 1-0

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "4"]
[White "Wieringa, Helmer"]
[Black "Strijbis, P."]
[Result "1-0"]
[ECO "C02"]
[PlyCount "79"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 cxd4 7. cxd4 Nge7 8. b4 Nf5 9. Be3 Be7 10. Nc3 0-0 11. Bd3 f6 12. Bxf5 exf5 13. Nxd5 Qd8 14. Nxe7+ Qxe7 15. 0-0 Qf7 16. b5 Ne7 17. exf6 Qxf6 18. Bg5 Qf7 19. Ne5 Qe6 20. Bxe7 Qxe7 21. Re1 Qd6 22. Qf3 Rb8 23. d5 f4 24. Rac1 Bf5 25. Nc4 Qg6 26. Qxf4 Bd3 27. Qd4 Bf5 28. Re3 Rbe8 29. Qxa7 Be4 30. Rg3 Qf6 31. Qb6 Bxd5 32. Qxf6 Rxf6 33. Ne3 Be4 34. Rc7 g6 35. Ng4 Rd6 36. h4 Bd5 37. Rd3 Red8 38. Rxd5 Rxd5 39. Nf6+ Kf8 40. Nxh7+ 1-0

[Event "NED-chTB 9495"]
[Site "Netherlands"]
[Date "1994.??.??"]
[Round "1"]
[White "Wieringa, Helmer"]
[Black "Tolman, Fredde"]
[Result "1-0"]
[ECO "B93"]
[PlyCount "67"]
[EventDate "1994.??.??"]
[EventType "team-tourn"]
[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. f4 Nbd7 7. Bd3 e5 8. Nf3 b5 9. 0-0 Be7 10. Qe1 Bb7 11. fxe5 dxe5 12. Nh4 g6 13. Nf3 Nc5 14. Kh1 Nxd3 15. cxd3 b4 16. Nd1 Qxd3 17. Nf2 Qb5 18. Bh6 Rc8 19. Rc1 Rxc1 20. Qxc1 Bf8 21. Rd1 Bxh6 22. Qxh6 Ke7 23. Qd2 Kf8 24. Qg5 Kg7 25. Kg1 Re8 26. Nh4 Bc8 27. Rd6 Ng4 28. Nxg4 Qc5+ 29. Ne3 h6 30. Qf6+ Kg8 31. Rd3 Qc1+ 32. Nf1 Qxb2 33. Nxg6 Qxa2 34. Qh8# 1-0

[Event "NED-chTB 9495"]
[Site "Netherlands"]
[Date "1994.??.??"]
[Round "5"]
[White "Wieringa, Helmer"]
[Black "Van Manen, Gerben M"]
[Result "0-1"]
[ECO "C91"]
[BlackElo "2210"]
[PlyCount "78"]
[EventDate "1994.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. c3 d6 9. d4 Bg4 10. d5 Na5 11. Bc2 c6 12. h3 Bd7 13. dxc6 Bxc6 14. Nbd2 Qc7 15. Nf1 Rfe8 16. Ng3 Rac8 17. Nh4 Nc4 18. Nhf5 Bf8 19. b3 Nb6 20. Bg5 Re6 21. Ne3 h6 22. Bxf6 Rxf6 23. Rc1 Qb7 24. Qd3 g6 25. Red1 Qa7 26. Rd2 Qc7 27. Nd5 Nxd5 28. exd5 Bd7 29. Ne4 Rf4 30. Qe2 h5 31. Rd3 Bh6 32. Rcd1 Bf5 33. Rg3 Kf8 34. h4 Rxh4 35. a4 Bf4 36. axb5 axb5 37. Qxb5 Bxe4 38. Bxe4 Bxg3 39. c4 Bxf2+ 0-1

[Event "NED-chTB 9495"]
[Site "Netherlands"]
[Date "1994.??.??"]
[Round "7"]
[White "Wieringa, Helmer"]
[Black "Verdonk, Walter"]
[Result "1/2-1/2"]
[ECO "C91"]
[PlyCount "103"]
[EventDate "1994.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. d4 Bg4 10. d5 Na5 11. Bc2 c6 12. h3 Bh5 13. dxc6 Qc7 14. Qe2 Qxc6 15. Nbd2 Rfc8 16. Bd3 Nb7 17. Nf1 Nc5 18. g4 Bg6 19. Ng3 Nxd3 20. Qxd3 Nd7 21. h4 Nc5 22. Qe2 f6 23. h5 Bf7 24. Nf5 Bf8 25. g5 Bxh5 26. gxf6 gxf6 27. Bh6 Kh8 28. Bxf8 Rxf8 29. Kh2 Nxe4 30. Qxe4 Qxe4 31. Rxe4 Bxf3 32. Re3 e4 33. Nd4 Rg8 34. Nxf3 exf3 35. Rxf3 Rae8 36. a4 Re5 37. axb5 axb5 38. Ra6 Rh5+ 39. Rh3 Rhg5 40. Rg3 Rxg3 41. fxg3 Rg5 42. Rxd6 Kg7 43. Kg2 h5 44. Rd4 Kf7 45. Re4 Rf5 46. Re3 Kg6 47. b3 Kf7 48. Rf3 Rd5 49. Kf2 Ke6 50. Ke3 Re5+ 51. Kd3 Rd5+ 52. Ke3 1/2-1/2

[Event "Rosmalen BK op"]
[Site "Rosmalen"]
[Date "1993.??.??"]
[Round "6"]
[White "Klein Douwel, John"]
[Black "Wieringa, Helmer"]
[Result "0-1"]
[ECO "D35"]
[PlyCount "66"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c6 3. c4 Nf6 4. Nc3 e6 5. cxd5 exd5 6. Bg5 Bf5 7. Nh4 Be6 8. Qc2 h6 9. Bd2 Ne4 10. Nxe4 Qxh4 11. Nc5 Qxd4 12. Nxe6 fxe6 13. Qg6+ Kd8 14. Bc3 Bb4 15. Rc1 Bxc3+ 16. Rxc3 Qf6 17. Qg3 Nd7 18. e3 e5 19. Be2 Kc7 20. Bf3 Qd6 21. Bg4 Nf6 22. 0-0 Ne4 23. Qf3 Raf8 24. Qd1 Nxc3 25. bxc3 Qc5 26. Qd2 Rf6 27. Qb2 Rhf8 28. Bf3 e4 29. Bg4 Qxe3 30. c4 Rxf2 31. Qe5+ Kb6 32. c5+ Qxc5 33. Rb1+ Rb2+ 0-1

[Event "Rosmalen BK op"]
[Site "Rosmalen"]
[Date "1993.??.??"]
[Round "2"]
[White "Quint, Hans"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "C48"]
[PlyCount "93"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Bc5 6. 0-0 0-0 7. Nxe5 Re8 8. Nd3 Bb6 9. e5 c6 10. exf6 Qxf6 11. Re1 Re6 12. Rxe6 fxe6 13. Qh5 Qf8 14. Ne4 d5 15. Ng5 h6 16. Nf3 Bd7 17. Nxd4 Bxd4 18. c3 Bb6 19. Qf3 Qd6 20. Qg3 Qxg3 21. hxg3 Rf8 22. b4 e5 23. Nc5 Bc8 24. d4 e4 25. Bf4 Bd8 26. Bb3 Kh8 27. Bc2 Kg8 28. Re1 b6 29. Nb3 Bd7 30. Nd2 g5 31. Be5 g4 32. Bb3 Kh7 33. c4 Bg5 34. Bf4 Bf6 35. cxd5 Bxd4 36. Rxe4 Bf6 37. dxc6 Bxc6 38. Re6 Bd7 39. Rd6 Bf5 40. Nf1 h5 41. Ne3 Bc8 42. Nd5 Bg7 43. Ne7 Bc3 44. Bc2+ Kg7 45. Bh6+ Kf7 46. Bxf8 Bxb4 47. Nxc8 1-0

[Event "Haarlem AKN op 02nd"]
[Site "Haarlem"]
[Date "1993.??.??"]
[Round "4"]
[White "Reinderman, Dimitri"]
[Black "Wieringa, Helmer"]
[Result "1-0"]
[ECO "D42"]
[WhiteElo "2415"]
[PlyCount "63"]
[EventDate "1993.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. c4 c6 2. e4 d5 3. exd5 cxd5 4. d4 Nf6 5. Nc3 e6 6. Nf3 Be7 7. cxd5 Nxd5 8. Bd3 Nc6 9. 0-0 a6 10. Re1 Nf6 11. a3 b5 12. Bg5 Kf8 13. Bc2 Bb7 14. Qd3 Na5 15. Rad1 Nc4 16. Bc1 Rc8 17. Bb3 Qc7 18. Ne5 Nxe5 19. dxe5 Rd8 20. exf6 Rxd3 21. fxe7+ Kxe7 22. Rxd3 Rc8 23. Red1 a5 24. Bg5+ f6 25. Be3 Qc6 26. f3 b4 27. Ba4 Qa6 28. Bb5 Qa8 29. Na4 Qb8 30. Rd7+ Kf8 31. Nc5 Bd5 32. R7xd5 1-0

[Event "Rosmalen BK op"]
[Site "Rosmalen"]
[Date "1993.??.??"]
[Round "4"]
[White "Van der Cruysen, Geert"]
[Black "Wieringa, Helmer"]
[Result "0-1"]
[ECO "A02"]
[PlyCount "40"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. f4 b5 2. Nf3 Bb7 3. b3 g6 4. Bb2 Nf6 5. e3 a6 6. Be2 Bg7 7. 0-0 0-0 8. d3 d6 9. e4 c5 10. h3 Nc6 11. g4 c4 12. a3 Qb6+ 13. Kh2 Nxg4+ 14. hxg4 Bxb2 15. Nbd2 Bxa1 16. Qxa1 Qe3 17. Qe1 Qxf4+ 18. Qg3 Qxg3+ 19. Kxg3 cxb3 20. cxb3 Rac8 0-1

[Event "Antwerp op"]
[Site "Antwerp"]
[Date "1993.??.??"]
[Round "5"]
[White "Wieringa, Helmer"]
[Black "Grooten, Herman"]
[Result "0-1"]
[ECO "B13"]
[BlackElo "2375"]
[PlyCount "70"]
[EventDate "1993.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 g6 7. h3 Nh5 8. Bh2 Bh6 9. Ne2 0-0 10. Nd2 f5 11. Qc2 Be6 12. g4 Nf6 13. f3 Rc8 14. a3 Kh8 15. Nb3 b6 16. Nf4 Qd7 17. Qe2 Bg8 18. gxf5 gxf5 19. Bb5 Qe8 20. Nc1 Bf7 21. Ncd3 Nxd4 22. Bxe8 Nxe2 23. Bb5 Nxf4 24. Ne5 Bh5 25. Bg3 Rg8 26. Kf2 Rxg3 27. Kxg3 Rg8+ 28. Ng4 Nxh3 29. Rxh3 fxg4 30. fxg4 Rxg4+ 31. Kh2 Bf4+ 32. Kh1 Bg6 33. Bd3 Ne4 34. Rf3 Nf2+ 35. Rxf2 Bxd3 0-1

[Event "Haarlem AKN op 02nd"]
[Site "Haarlem"]
[Date "1993.??.??"]
[Round "3"]
[White "Wieringa, Helmer"]
[Black "Mol, Robert"]
[Result "1-0"]
[ECO "B01"]
[PlyCount "37"]
[EventDate "1993.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Nf3 Nf6 5. Bc4 Nc6 6. h3 e6 7. d4 Ne4 8. Qd3 Nxc3 9. bxc3 Be7 10. Bf4 0-0 11. 0-0 a6 12. a4 Bf6 13. Nd2 e5 14. Nb3 Qb6 15. Be3 exd4 16. cxd4 Qb4 17. Nc5 Rd8 18. Rab1 Qa5 19. Bd2 1-0

[Event "Rosmalen BK op"]
[Site "Rosmalen"]
[Date "1993.??.??"]
[Round "1"]
[White "Wieringa, Helmer"]
[Black "Schut, Heleen"]
[Result "1-0"]
[ECO "B41"]
[PlyCount "74"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 e6 7. Be2 Be7 8. 0-0 Qc7 9. Be3 0-0 10. f4 Nbd7 11. Rc1 Re8 12. Nb3 b6 13. Bf3 Bb7 14. g4 Nf8 15. Qe1 N6d7 16. h4 Nc5 17. Nxc5 dxc5 18. h5 Rad8 19. Qe2 Bf6 20. e5 Be7 21. Ne4 h6 22. Rf2 Rd7 23. Rg2 Nh7 24. Nf2 Kh8 25. Be4 Bxe4 26. Nxe4 Red8 27. Bd2 Qc6 28. Bc3 Rd3 29. Nd6 R3xd6 30. exd6 Rxd6 31. Rg3 Nf6 32. Rd1 Rxd1+ 33. Qxd1 Ne4 34. Qf3 Bh4 35. Rg2 Qb7 36. Re2 Nd6 37. Qxb7 Nxb7 1-0

[Event "Rosmalen BK op"]
[Site "Rosmalen"]
[Date "1993.??.??"]
[Round "5"]
[White "Wieringa, Helmer"]
[Black "Van de Werken, Harmen"]
[Result "1-0"]
[ECO "B93"]
[PlyCount "73"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e5 7. Nf5 Nxe4 8. Nxg7+ Bxg7 9. Nxe4 d5 10. Ng3 Nc6 11. Nh5 Bf6 12. Be3 Be6 13. Be2 Bh4+ 14. g3 Be7 15. f5 Bc8 16. Ng7+ Kd7 17. Qxd5+ Kc7 18. Qxf7 Kb8 19. c3 Rf8 20. Qh5 Qd5 21. 0-0 Bc5 22. Bxc5 Qxc5+ 23. Kh1 Qd5+ 24. Bf3 e4 25. Bg2 Qe5 26. Qxh7 Ka7 27. Rae1 Rf7 28. f6 Rxf6 29. Rxf6 Qxf6 30. Nh5 Qg5 31. Nf4 Bf5 32. Qh5 Qg7 33. Bxe4 Bxe4+ 34. Rxe4 Rh8 35. Qe2 Rh7 36. Qe3+ Kb8 37. Re8+ 1-0

[Event "Rosmalen BK op"]
[Site "Rosmalen"]
[Date "1993.??.??"]
[Round "3"]
[White "Wieringa, Helmer"]
[Black "Van der Heyden, Haro"]
[Result "0-1"]
[ECO "B25"]
[PlyCount "100"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 g6 2. Nc3 Bg7 3. g3 c5 4. Bg2 Nc6 5. d3 d6 6. f4 Nf6 7. Nf3 Bg4 8. h3 Bxf3 9. Qxf3 Nb4 10. Qd1 e5 11. 0-0 exf4 12. gxf4 Nh5 13. a3 Bd4+ 14. Kh2 Nc6 15. Nd5 Bg7 16. c3 0-0 17. b4 Ne7 18. Nxe7+ Qxe7 19. Bd2 Kh8 20. Rb1 Rad8 21. Bf3 Nf6 22. Qb3 b6 23. Rbe1 Nd7 24. Be3 Qf6 25. d4 cxd4 26. cxd4 Rc8 27. Bg4 Qe7 28. e5 dxe5 29. fxe5 h5 30. Bf3 Nxe5 31. Bd5 Qh4 32. Bf4 Nc6 33. Bg3 Qg5 34. Bxf7 Nxd4 35. Qd3 Rc2+ 36. Kh1 Rxf7 37. Rxf7 Qd5+ 38. Re4 Qxf7 39. Rxd4 Rc1+ 40. Kh2 Qa2+ 41. Qd2 Rc2 42. Rd8+ Kh7 43. Bf4 Rxd2+ 44. Rxd2 Qc4 45. Rf2 Bd4 46. Rf3 Qd5 47. Kg3 h4+ 48. Kg4 Bf6 49. Bb8 Qe4+ 50. Rf4 Qg2# 0-1

[Event "Haarlem AKN op 02nd"]
[Site "Haarlem"]
[Date "1993.??.??"]
[Round "5"]
[White "Wieringa, Helmer"]
[Black "Witt, Rob"]
[Result "1-0"]
[ECO "C56"]
[BlackElo "2330"]
[PlyCount "43"]
[EventDate "1993.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. e5 d5 6. Bb5 Nd7 7. 0-0 Be7 8. Re1 0-0 9. Bf4 Nc5 10. Bxc6 bxc6 11. Nxd4 Bd7 12. c3 Re8 13. Qc2 Bg5 14. Bg3 h5 15. h3 Ne4 16. Bh2 h4 17. f4 Bh6 18. Nd2 c5 19. Nxe4 dxe4 20. Nb3 f5 21. Nxc5 Bb5 22. Qb3+ 1-0

[Event "Haarlem AKN op 01st"]
[Site "Haarlem"]
[Date "1992.??.??"]
[Round "1"]
[White "Wieringa, Helmer"]
[Black "Galje, Hans"]
[Result "1-0"]
[ECO "B01"]
[BlackElo "2205"]
[PlyCount "55"]
[EventDate "1992.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Nc6 6. Be3 Bg4 7. h3 Bh5 8. g4 Bg6 9. Bg2 0-0-0 10. Qe2 e6 11. 0-0 Be7 12. a3 Nd5 13. Na2 h5 14. c4 Nxe3 15. fxe3 hxg4 16. hxg4 f5 17. b4 Qxa3 18. b5 fxg4 19. bxc6 gxf3 20. Bxf3 Bd3 21. Nb4 Bxe2 22. cxb7+ Kb8 23. Nc6+ Kxb7 24. Rfb1+ Ka8 25. Rxa3 Bxa3 26. Bg2 Bxc4 27. Nxd8+ Bd5 28. Nxe6 1-0

[Event "Bussum op"]
[Site "Bussum"]
[Date "1988.??.??"]
[Round "?"]
[White "Gouw, Carol Peter"]
[Black "Wieringa, Helmer"]
[Result "0-1"]
[ECO "D44"]
[PlyCount "50"]
[EventDate "1988.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 e6 4. Nc3 Nf6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. exf6 gxh4 10. Ne5 Qxf6 11. g3 Nd7 12. Qe2 c5 13. Nxb5 cxd4 14. Nc6 Bc5 15. Nc7+ Kf8 16. Bg2 d3 17. Qf3 Bb7 18. Qxf6 Nxf6 19. Nxa8 Bxa8 20. 0-0 hxg3 21. hxg3 Rg8 22. Kh1 Ng4 23. Kg1 Nxf2 24. Rxf2 Rxg3 25. Kf1 Bxf2 0-1

[Event "NED-ch32 sf-A"]
[Site "Rheden"]
[Date "1977.03.??"]
[Round "?"]
[White "Wieringa, Helmer"]
[Black "Van der Sterren, Paul"]
[Result "0-1"]
[ECO "B09"]
[BlackElo "2375"]
[PlyCount "48"]
[EventDate "1977.03.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. dxc5 Qa5 7. Bd3 Qxc5 8. Qe2 0-0 9. Be3 Qc7 10. 0-0 Nbd7 11. h3 b6 12. Qf2 Bb7 13. Qh4 e5 14. fxe5 dxe5 15. Bh6 Nh5 16. Bxg7 Kxg7 17. Ng5 Ndf6 18. Rf2 h6 19. Nf3 Nf4 20. g3 g5 21. Nxg5 Ng6 22. Rxf6 Nxh4 23. Rxf7+ Qxf7 24. Nxf7 Nf3+ 0-1

