[Event "Tilburg op"]
[Site "Tilburg"]
[Date "2008.08.??"]
[Round "?"]
[White "Wiley, Tom E"]
[Black "Offringa, Tjaart Jan"]
[Result "1-0"]
[ECO "D66"]
[WhiteElo "2299"]
[BlackElo "2035"]
[PlyCount "71"]
[EventDate "2008.08.22"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 126 Extra"]
[Source "ChessBase"]
[SourceDate "2008.11.05"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 Nbd7 6. Nf3 0-0 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 b5 10. Bd3 Bb7 11. 0-0 a6 12. a4 b4 13. Bxf6 Nxf6 14. Ne4 Nxe4 15. Bxe4 Rc8 16. Ne5 Qd6 17. Qf3 f6 18. Nxc6 Bxc6 19. Rxc6 Rxc6 20. Bxc6 Rc8 21. Be4 g6 22. g3 Kg7 23. Rd1 Rc7 24. Qe2 Qb6 25. Bd3 Rc6 26. b3 Rc3 27. Bc4 a5 28. Qf3 Qc7 29. Bxe6 Rc1 30. Rxc1 Qxc1+ 31. Kg2 Qc2 32. Qb7 Kh6 33. Qxe7 Qe4+ 34. f3 Qxe3 35. Qxf6 Qe2+ 36. Kh3 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.13"]
[Round "9"]
[White "Miedema, David"]
[Black "Offringa, Tjaart Jan"]
[Result "1-0"]
[ECO "D36"]
[BlackElo "1928"]
[PlyCount "77"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 Nbd7 8. Qc2 0-0 9. g4 Ne4 10. Bf4 Nxc3 11. bxc3 Nf6 12. f3 g6 13. h4 Bxg4 14. fxg4 Nxg4 15. Nf3 Bd6 16. Ne5 Bxe5 17. dxe5 Qe7 18. 0-0-0 Nxe5 19. h5 Nxd3+ 20. Qxd3 Rad8 21. hxg6 fxg6 22. Rdg1 Qe4 23. Qxe4 dxe4 24. Kc2 Rd7 25. Rd1 Rfd8 26. Rd4 Rxd4 27. cxd4 Rd5 28. Be5 Rd7 29. Rh4 Rf7 30. Rxe4 Rf2+ 31. Kb3 a5 32. Bf4 b5 33. Re7 a4+ 34. Ka3 Rd2 35. Bh6 Rd3+ 36. Kb4 Rd2 37. Rg7+ Kf8 38. Rxg6+ Kf7 39. Rxc6 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.12"]
[Round "7"]
[White "Offringa, Tjaart Jan"]
[Black "Zimmermann, Wim"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "1928"]
[BlackElo "1711"]
[PlyCount "77"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Nbd7 5. Bf4 Bd6 6. Bxd6 cxd6 7. cxd5 Nxd5 8. Nxd5 exd5 9. e3 0-0 10. Bd3 Nf6 11. 0-0 Bg4 12. Qb3 Qe7 13. Rac1 Rac8 14. h3 Bh5 15. Rc3 Qd7 16. Nd2 Rxc3 17. bxc3 Rc8 18. Rc1 Bg6 19. Bxg6 hxg6 20. c4 Ne4 21. Nxe4 dxe4 22. Rb1 Rc7 23. Qa3 a6 24. Rb6 Rc6 25. Qb4 Rxb6 26. Qxb6 Qc6 27. Qd8+ Kh7 28. Qh4+ Kg8 29. Qd8+ Kh7 30. d5 Qxc4 31. Qxd6 Qxa2 32. Qe5 Qa4 33. d6 b5 34. Qe7 Qa3 35. Qe5 Qc1+ 36. Kh2 Qc8 37. Qxe4 Qb8 38. Qc6 b4 39. Qc7 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.12"]
[Round "8"]
[White "Selker, Marc"]
[Black "Offringa, Tjaart Jan"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2121"]
[BlackElo "1928"]
[PlyCount "94"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Bg4 6. Be2 e6 7. Na3 a6 8. Nc4 Bxf3 9. gxf3 Nbd7 10. Rg1 g6 11. a4 cxd4 12. Rg5 Qc6 13. b4 dxc3 14. Bf4 Bxb4 15. Qb3 a5 16. Ne5 c2+ 17. Kf1 Qc3 18. Qa2 0-0 19. Rc1 Rac8 20. Nc4 Qd4 21. Be3 Qh4 22. Kg1 Bc5 23. Rg3 Bxe3 24. fxe3 Rc5 25. Rxc2 Rg5 26. Rxg5 Qxg5+ 27. Kf2 Qh4+ 28. Kg2 Rc8 29. Nd6 Rxc2 30. Qxc2 Qg5+ 31. Kf2 Qc5 32. Qd2 b6 33. Bb5 Ne5 34. h3 g5 35. Ne4 Nxe4+ 36. fxe4 Qe7 37. Kg2 g4 38. Be2 Qh4 39. hxg4 Nxg4 40. Bxg4 Qxg4+ 41. Kh2 Qh4+ 42. Kg1 Qxe4 43. Qd8+ Kg7 44. Qxb6 Qg4+ 45. Kf2 Qh4+ 46. Ke2 Qxa4 47. Qd8 Qb5+ 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.11"]
[Round "6"]
[White "Offringa, Tjaart Jan"]
[Black "Van den Bos, Jokim"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "1928"]
[BlackElo "1768"]
[PlyCount "85"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. Nc3 cxd4 5. Nxd4 Bc5 6. Nf3 Nc6 7. e3 b6 8. Bd3 Bb7 9. 0-0 a6 10. a3 Qc7 11. b4 Bd6 12. Bb2 0-0-0 13. b5 Ne5 14. Nxe5 Bxe5 15. f4 Bd6 16. bxa6 Bxa6 17. c5 Bxd3 18. Qxd3 Bxc5 19. Nb5 Qb8 20. Rfc1 d6 21. a4 Kd7 22. a5 Ke7 23. a6 Nd5 24. Nd4 Qa8 25. Kh1 f6 26. f5 exf5 27. Nxf5+ Kf7 28. e4 Nc7 29. Qb3+ Kf8 30. Nxg7 Ke7 31. Bxf6+ Kd7 32. Bxd8 Rxd8 33. Qf7+ Kc6 34. Ne6 Nxe6 35. Qxe6 Qa7 36. Rf1 Rd7 37. Rf8 b5 38. Qd5+ Kb6 39. Ra8 Qc7 40. a7 Qxa7 41. R8xa7 Rxa7 42. Rxa7 Kxa7 43. e5 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.10"]
[Round "4"]
[White "Brandenburg, Rik"]
[Black "Offringa, Tjaart Jan"]
[Result "1-0"]
[ECO "B25"]
[WhiteElo "1840"]
[BlackElo "1928"]
[PlyCount "107"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 g6 4. Bg2 Bg7 5. d3 Nc6 6. f4 e6 7. Nf3 Nge7 8. 0-0 0-0 9. Ne2 d5 10. e5 f6 11. exf6 Bxf6 12. c3 Kh8 13. d4 cxd4 14. Nexd4 Qb6 15. Rf2 Nf5 16. Nxf5 gxf5 17. Qd3 Nd8 18. Be3 Qc7 19. Re1 Nf7 20. Bd4 Nd6 21. Ne5 Ne4 22. Rc2 Bd7 23. c4 Bc6 24. Rec1 Rac8 25. cxd5 exd5 26. Bh3 Bg7 27. b4 a6 28. a4 Nd6 29. b5 axb5 30. axb5 Bxb5 31. Rxc7 Bxd3 32. Ng6+ hxg6 33. Bxg7+ Kg8 34. Bxf8 Rxc7 35. Rxc7 Kxf8 36. Rd7 Nc4 37. Rxd5 Be4 38. Rd4 b5 39. Bg2 Bxg2 40. Kxg2 Ke7 41. Kf3 Ke6 42. Ke2 Nd6 43. Kd3 Kd7 44. Rd5 Ke6 45. Re5+ Kf6 46. Rc5 Ke6 47. Kd4 b4 48. Rc6 Kd7 49. Rb6 Ne4 50. Rxb4 Nd2 51. Kd3 Nf3 52. Rb2 Ke6 53. Ke3 Ng1 54. Kf2 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.10"]
[Round "5"]
[White "Van Vliembergen, Roland"]
[Black "Offringa, Tjaart Jan"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "1652"]
[BlackElo "1928"]
[PlyCount "44"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 g6 4. Nf3 Bg7 5. Bc4 Nc6 6. d3 e6 7. 0-0 Nge7 8. Qe1 0-0 9. f5 exf5 10. Qh4 h5 11. g4 fxg4 12. Ng5 Be6 13. Nxe6 fxe6 14. Bxe6+ Kh8 15. Bxg4 Rxf1+ 16. Kxf1 Ng8 17. Bg5 Bf6 18. Bxf6+ Qxf6+ 19. Qxf6+ Nxf6 20. Be2 Nd4 21. Rc1 Rf8 22. Ke1 Kg7 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.09"]
[Round "3"]
[White "Offringa, Tjaart Jan"]
[Black "Berendsen, David"]
[Result "1/2-1/2"]
[ECO "A10"]
[WhiteElo "1928"]
[BlackElo "1667"]
[PlyCount "117"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. Nf3 f5 2. c4 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. e3 Nc6 6. d4 e6 7. Bb5 Bd6 8. 0-0 0-0 9. Bd2 Nce7 10. Bc4 b6 11. Nb5 Bb7 12. Ng5 Rf6 13. e4 fxe4 14. Nxd6 cxd6 15. Qh5 h6 16. Nxe4 Rg6 17. Bd3 Qe8 18. Ng3 Rf6 19. Qxe8+ Rxe8 20. Ne4 Rff8 21. Nxd6 Rb8 22. Nxb7 Rxb7 23. Rfe1 Kf7 24. Rac1 Rc7 25. a3 Rfc8 26. Rxc7 Rxc7 27. Rc1 Rxc1+ 28. Bxc1 Kf6 29. Kf1 Nc6 30. Be3 Nxe3+ 31. fxe3 e5 32. d5 Na5 33. e4 Nb7 34. Ke2 Kg5 35. Kf3 Kh4 36. Be2 g5 37. b4 h5 38. Bd3 g4+ 39. Kf2 Kg5 40. g3 Nd6 41. Ke3 Kf6 42. Be2 Nf7 43. Kd3 Ng5 44. Ke3 Ke7 45. Bb5 Nf3 46. h4 Nd4 47. Bd3 b5 48. Kd2 a6 49. Bb1 Kd6 50. Kd3 Kd7 51. Ba2 Kd6 52. Kd2 Nf3+ 53. Ke2 Nd4+ 54. Kd3 Nf3 55. Bb3 Nd4 56. Bd1 Kd7 57. a4 Kd6 58. axb5 axb5 59. Ke3 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.09"]
[Round "2"]
[White "Van den Berg, Hilke"]
[Black "Offringa, Tjaart Jan"]
[Result "1-0"]
[ECO "E16"]
[WhiteElo "2163"]
[BlackElo "1928"]
[PlyCount "79"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 b6 5. Bg2 Bb7 6. 0-0 Nbd7 7. Nbd2 Be7 8. Qc2 0-0 9. Rd1 Rc8 10. Qa4 a5 11. Ne5 Nxe5 12. dxe5 Nd7 13. Nf3 c6 14. Qc2 Qc7 15. Bf4 Rfd8 16. e4 dxc4 17. Qxc4 Nc5 18. Qc2 Rxd1+ 19. Rxd1 Rd8 20. Rxd8+ Qxd8 21. Be3 Ba6 22. Bf1 Bd3 23. Bxd3 Qxd3 24. Qxd3 Nxd3 25. Bxb6 Nxb2 26. Bxa5 Bc5 27. Kf1 Nd3 28. Be1 Ba3 29. Nd2 Nxe5 30. Ke2 Kf8 31. f4 Ng4 32. Nc4 Bc5 33. h3 Nf6 34. Kd3 Ke7 35. Ne5 Nd7 36. Nxc6+ Kd6 37. Nd4 g6 38. a4 e5 39. Nf3 f5 40. Ng5 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.08"]
[Round "1"]
[White "Offringa, Tjaart Jan"]
[Black "Naarding, Eelco"]
[Result "1-0"]
[ECO "D74"]
[WhiteElo "1928"]
[BlackElo "1482"]
[PlyCount "61"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 0-0 5. Bg2 c6 6. 0-0 d5 7. cxd5 Nxd5 8. e4 Nf6 9. d4 Bg4 10. Be3 Nbd7 11. Qb3 Qc7 12. Rac1 Nb6 13. h3 Bxf3 14. Bxf3 e6 15. d5 exd5 16. exd5 Rfe8 17. Kh2 Rad8 18. dxc6 Rd3 19. Nb5 Rxb3 20. Nxc7 Rbxe3 21. fxe3 Rxe3 22. cxb7 Nbd7 23. Nd5 Nxd5 24. Bxd5 Re2+ 25. Kh1 Rxb2 26. Rxf7 Nf8 27. Bb3 Be5 28. Rxf8+ Kxf8 29. Rc8+ Kg7 30. b8Q Bxb8 31. Rxb8 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2003.08.09"]
[Round "9"]
[White "Van Eijk, Sander"]
[Black "Offringa, Tjaart Jan"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2233"]
[PlyCount "121"]
[EventDate "2003.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. Nf3 a6 4. d4 cxd4 5. Nxd4 Nf6 6. e5 Ng8 7. Bf4 d5 8. exd6 Bxd6 9. Nxe6 Bxe6 10. Qxd6 Nc6 11. 0-0-0 Nf6 12. Qxd8+ Rxd8 13. Rxd8+ Nxd8 14. Bd6 Kd7 15. Bg3 Nc6 16. Be2 Re8 17. Bf3 Kc8 18. Rd1 Rd8 19. Rxd8+ Nxd8 20. a3 Nc6 21. h3 Nd4 22. Bd1 Nc6 23. Kd2 Kd7 24. Bf3 b5 25. Bh4 Ne8 26. Ne4 Nd4 27. Nc5+ Kd6 28. Nxe6 Nxf3+ 29. gxf3 Kxe6 30. Kc3 Kd5 31. Bg3 f6 32. Kb4 Kc6 33. Ka5 Kb7 34. a4 bxa4 35. Kxa4 g6 36. Bf4 Ng7 37. Bd2 Ne6 38. Be3 f5 39. f4 g5 40. fxg5 f4 41. Bc1 Nxg5 42. Bxf4 Nxh3 43. Be3 Ng1 44. f4 Nf3 45. f5 Ne5 46. f6 h5 47. Bg5 Nf7 48. Bh4 Kc6 49. Ka5 Kb7 50. b4 Nd6 51. Bg3 Nf7 52. b5 axb5 53. Kxb5 Kc8 54. Kc6 Kd8 55. Kd5 Kd7 56. c4 Nh8 57. c5 Ng6 58. c6+ Kc8 59. f7 h4 60. Bxh4 Kc7 61. Bg5 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2003.08.08"]
[Round "8"]
[White "Offringa, Tjaart Jan"]
[Black "Van Vliet, Gert Jan"]
[Result "1-0"]
[ECO "D70"]
[PlyCount "93"]
[EventDate "2003.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. f3 d5 4. cxd5 Nxd5 5. e4 Nb6 6. Nc3 Bg7 7. Be3 0-0 8. Qd2 c6 9. h4 e5 10. 0-0-0 exd4 11. Bxd4 Be6 12. Nh3 Bxd4 13. Qxd4 Qxh4 14. Qd2 N8d7 15. Bd3 Bxh3 16. Rxh3 Qf6 17. Rdh1 Qg7 18. g4 f6 19. Bc2 Rfe8 20. g5 Nf8 21. Bb3+ Kh8 22. Nd1 Rad8 23. Qf4 fxg5 24. Qxg5 Rd7 25. Ne3 Re5 26. Qf4 Qe7 27. Kb1 c5 28. Ng4 Rh5 29. Rxh5 gxh5 30. Rxh5 c4 31. Bc2 Ng6 32. Qf5 Qd8 33. Rh1 Kg7 34. Nf6 Qxf6 35. Rxh7+ Kxh7 36. Qxf6 Rg7 37. e5 Nd7 38. Bxg6+ Rxg6 39. Qf7+ Rg7 40. Qf5+ Kg8 41. Qe6+ Kh7 42. f4 b5 43. f5 Nc5 44. Qd5 Nd3 45. Qh1+ Kg8 46. f6 Rg5 47. e6 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2003.08.08"]
[Round "7"]
[White "Vos, Jan Pieter"]
[Black "Offringa, Tjaart Jan"]
[Result "1/2-1/2"]
[ECO "B92"]
[PlyCount "89"]
[EventDate "2003.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. 0-0 0-0 9. Kh1 Qc7 10. f4 b5 11. a3 Bb7 12. Bf3 Nbd7 13. Qe1 Nb6 14. Rf2 Rfe8 15. Na5 Bc8 16. f5 d5 17. exd5 e4 18. Nxe4 Bxf5 19. Nxf6+ Bxf6 20. Re2 Qd7 21. d6 Rxe2 22. Qxe2 Re8 23. Be3 Bd4 24. Bc6 Rxe3 25. Bxd7 Rxe2 26. Bxf5 Bxb2 27. Rd1 Bxa3 28. d7 Nxd7 29. Bxd7 Rxc2 30. h4 Rc1 31. Rxc1 Bxc1 32. Bc8 Bd2 33. Nb3 Be1 34. h5 a5 35. Bd7 a4 36. Nc1 Bd2 37. Na2 a3 38. Bxb5 g6 39. hxg6 fxg6 40. Bc4+ Kg7 41. Kg1 Kf6 42. Kf1 g5 43. Ke2 Bf4 44. Nc3 h5 45. Kf3 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2003.08.07"]
[Round "6"]
[White "Offringa, Tjaart Jan"]
[Black "Groenhuis, Vincent"]
[Result "1-0"]
[ECO "E81"]
[PlyCount "73"]
[EventDate "2003.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. f3 Bg7 4. e4 d6 5. Nc3 Nc6 6. Nge2 0-0 7. Bg5 Ne8 8. g4 f6 9. Be3 e5 10. d5 Ne7 11. Qd2 a6 12. a4 c6 13. h4 Rb8 14. a5 Bd7 15. Nc1 f5 16. g5 cxd5 17. cxd5 fxe4 18. fxe4 Rf7 19. Qh2 Nc7 20. h5 Bh8 21. h6 Rc8 22. Bb6 Qf8 23. Bh3 Bxh3 24. Qxh3 Nb5 25. Nxb5 axb5 26. b3 Rf4 27. Qe6+ Qf7 28. Qxf7+ Kxf7 29. Rf1 Ke8 30. Rxf4 exf4 31. Rb1 Rc2 32. Nd3 f3 33. Rc1 Re2+ 34. Kf1 Rxe4 35. Rc7 Nxd5 36. Rc8+ Kd7 37. Rxh8 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2003.08.06"]
[Round "4"]
[White "Leenman, Dennis"]
[Black "Offringa, Tjaart Jan"]
[Result "0-1"]
[ECO "B92"]
[PlyCount "58"]
[EventDate "2003.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. 0-0 0-0 9. Kh1 Be6 10. f4 Qc7 11. Qd3 Rc8 12. f5 Bc4 13. Qf3 b5 14. a3 Nbd7 15. Be3 d5 16. exd5 e4 17. Qf2 Nxd5 18. Nxd5 Bxd5 19. Nd4 Bf6 20. Rac1 Ne5 21. Rfd1 Bc4 22. b3 Bxe2 23. Qxe2 Re8 24. Bf4 Qc3 25. Rd2 Rad8 26. Qxe4 Ng6 27. Qc6 Qb2 28. Rcd1 Nxf4 29. Nxb5 Qe5 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2003.08.06"]
[Round "5"]
[White "Sminia, Jelmer"]
[Black "Offringa, Tjaart Jan"]
[Result "1-0"]
[ECO "B50"]
[PlyCount "61"]
[EventDate "2003.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Bd3 Nc6 5. Bc2 Bg4 6. h3 Bh5 7. d3 e6 8. Be3 d5 9. Nbd2 Qb6 10. b4 d4 11. bxc5 Bxc5 12. Nc4 Qc7 13. cxd4 Nxd4 14. Ba4+ Kf8 15. g4 Nxf3+ 16. Qxf3 Bg6 17. Rc1 Bxe3 18. Qxe3 Ke7 19. f4 h5 20. g5 Nd7 21. Bxd7 Qxd7 22. Qc5+ Kd8 23. Ne5 Qe7 24. Qxe7+ Kxe7 25. Rc7+ Kd6 26. Rxb7 Rab8 27. Rd7+ Kc5 28. Kd2 Rhc8 29. Rc1+ Kb5 30. Rxc8 Rxc8 31. Nxg6 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2003.08.05"]
[Round "3"]
[White "Offringa, Tjaart Jan"]
[Black "Swinkels, Robin"]
[Result "0-1"]
[ECO "D70"]
[BlackElo "2171"]
[PlyCount "72"]
[EventDate "2003.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. f3 d5 4. cxd5 Nxd5 5. e4 Nb6 6. Nc3 Bg7 7. Be3 0-0 8. Qd2 e5 9. Rd1 exd4 10. Bxd4 Bxd4 11. Qxd4 Qxd4 12. Rxd4 Nc6 13. Rd1 Be6 14. Bb5 Ne5 15. b3 Rad8 16. h4 f5 17. Nh3 Rxd1+ 18. Kxd1 Rd8+ 19. Kc2 fxe4 20. fxe4 Bxh3 21. Rxh3 Rf8 22. Nd1 Rf4 23. Bd3 Nbd7 24. g3 Rf6 25. b4 a5 26. a3 Rf3 27. Nb2 Nf6 28. bxa5 Nxd3 29. Nxd3 Nxe4 30. a4 Rxd3 31. Rh1 Rxg3 32. Rb1 Rc3+ 33. Kd1 Nc5 34. Rxb7 Nxb7 35. a6 Nc5 36. a7 Rd3+ 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2003.08.05"]
[Round "2"]
[White "Sprangers, Remco"]
[Black "Offringa, Tjaart Jan"]
[Result "0-1"]
[ECO "B51"]
[PlyCount "40"]
[EventDate "2003.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. 0-0 Bd7 5. Re1 Nf6 6. c3 a6 7. Bxc6 Bxc6 8. d4 Bxe4 9. Bg5 Bg6 10. Na3 e6 11. dxc5 dxc5 12. Qa4+ b5 13. Qh4 Be7 14. Rad1 Qc7 15. Ne5 Bf5 16. Nd7 0-0-0 17. Bf4 Nxd7 18. Qxe7 Qxf4 19. b4 Qc7 20. bxc5 Nf6 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2003.08.04"]
[Round "1"]
[White "Offringa, Tjaart Jan"]
[Black "Kratz, Jacques"]
[Result "1-0"]
[ECO "D41"]
[PlyCount "39"]
[EventDate "2003.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 Nc6 8. Bd3 Be7 9. 0-0 0-0 10. d5 Na5 11. c4 exd5 12. exd5 Qd6 13. Bg5 Bf6 14. Rb1 Bg4 15. Bxf6 Qxf6 16. Re1 Rfe8 17. Qa4 Re7 18. Qxa5 Rae8 19. Rxe7 Rxe7 20. Qd8+ 1-0

[Event "Utrecht OKU op-B"]
[Site "Utrecht"]
[Date "2001.06.09"]
[Round "2"]
[White "Layton, M."]
[Black "Offringa, Tjaart Jan"]
[Result "0-1"]
[ECO "B96"]
[PlyCount "64"]
[EventDate "2001.05.??"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 b5 8. e5 dxe5 9. fxe5 Qc7 10. exf6 Qe5+ 11. Qe2 Qxg5 12. Qf3 Ra7 13. Ne4 Qe5 14. 0-0-0 Rd7 15. c3 Bb7 16. Bd3 g6 17. Qg4 b4 18. Nb3 Bh6+ 19. Kb1 Rxd3 20. Nec5 Rxd1+ 21. Rxd1 Bd5 22. c4 Bc6 23. Ka1 0-0 24. h4 Qf4 25. Qe2 Qxf6 26. Rf1 Qxh4 27. Na5 Qe7 28. Nd3 Qg5 29. Nxc6 Nxc6 30. Qe4 Qe3 31. Qxc6 Qxd3 32. Re1 Rd8 0-1

[Event "Utrecht OKU op-B"]
[Site "Utrecht"]
[Date "2001.??.??"]
[Round "6"]
[White "Hoff, Pim H"]
[Black "Offringa, Tjaart Jan"]
[Result "1/2-1/2"]
[ECO "A14"]
[PlyCount "36"]
[EventDate "2001.05.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Be7 5. 0-0 0-0 6. Qc2 b6 7. a3 c5 8. d4 Bb7 9. b3 Nbd7 10. Nbd2 Rc8 11. Qb2 Re8 12. Rd1 Ba6 13. cxd5 Nxd5 14. e4 N5f6 15. Qb1 cxd4 16. Nxd4 Nc5 17. Bb2 Bd3 18. Qa2 Ba6 1/2-1/2

[Event "Utrecht OKU op-B"]
[Site "Utrecht"]
[Date "2001.??.??"]
[Round "3"]
[White "Offringa, Tjaart Jan"]
[Black "Kuijpers, PCA"]
[Result "0-1"]
[ECO "D35"]
[PlyCount "68"]
[EventDate "2001.05.??"]
[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 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Nf3 Bf5 8. Nh4 Be4 9. f3 Bg6 10. Nxg6 hxg6 11. Bd3 Nh5 12. Bxe7 Qxe7 13. Qd2 Ng3 14. Rg1 Rxh2 15. 0-0-0 Nd7 16. Rge1 0-0-0 17. e4 dxe4 18. Bxe4 Qh4 19. d5 Nb6 20. Qc2 Nxe4 21. Rxe4 Qg5+ 22. f4 Qg4 23. dxc6 bxc6 24. Rxd8+ Kxd8 25. Qd2+ Nd7 26. Rd4 Kc8 27. Re4 Rxg2 28. Re8+ Kb7 29. Qd4 Qf5 30. Ne2 Qc5+ 31. Qxc5 Nxc5 32. Re7+ Kb6 33. Kd2 f5 34. Rxg7 Ne6 0-1

[Event "Utrecht OKU op-B"]
[Site "Utrecht"]
[Date "2001.??.??"]
[Round "5"]
[White "Offringa, Tjaart Jan"]
[Black "Van Duijl, Henri V"]
[Result "1-0"]
[ECO "D08"]
[PlyCount "35"]
[EventDate "2001.05.??"]
[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 e5 3. dxe5 d4 4. Nf3 Nc6 5. Nbd2 Bf5 6. Nb3 Bb4+ 7. Bd2 Qe7 8. a3 Bxd2+ 9. Qxd2 0-0-0 10. Nbxd4 Nxd4 11. Nxd4 Qd7 12. 0-0-0 Qa4 13. Qb4 Qd7 14. e3 f6 15. Be2 Nh6 16. Bf3 c6 17. Nxc6 Qxd1+ 18. Rxd1 1-0

[Event "Utrecht OKU op-B"]
[Site "Utrecht"]
[Date "2001.??.??"]
[Round "4"]
[White "Smit, Manuel"]
[Black "Offringa, Tjaart Jan"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "114"]
[EventDate "2001.05.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. b4 e5 2. Bb2 f6 3. a3 d5 4. d4 Nc6 5. e3 Bd6 6. Ne2 Nh6 7. g3 Nf7 8. Bg2 Ne7 9. Nd2 0-0 10. c4 c6 11. 0-0 e4 12. cxd5 cxd5 13. Nc3 Be6 14. f3 f5 15. f4 Nh6 16. h3 Rf6 17. Rf2 Rg6 18. Kh2 Rc8 19. Bf1 Kh8 20. Rg2 Neg8 21. Be2 Nf6 22. Nb3 b6 23. Rc1 Qe7 24. Ba6 Rd8 25. Be2 Rc8 26. Nb5 Rd8 27. Rc6 Bf7 28. Nxd6 Rxd6 29. Qc1 Nfg4+ 30. hxg4 Rxc6 31. Qd2 Nxg4+ 32. Kg1 Nf6 33. b5 Rc8 34. a4 Ne8 35. Bd1 Nd6 36. Ba3 Qd7 37. Qb4 Nc4 38. Bc1 Qd6 39. Qe1 Re6 40. g4 Bg6 41. Qg3 Qe7 42. Qh3 Rf8 43. Rh2 Qb4 44. Nd2 Nxd2 45. Bxd2 Qb1 46. Qf1 fxg4 47. Qe2 Bf5 48. Rh5 Rh6 49. Rg5 Rg6 50. Rh5 g3 51. Rh4 Rff6 52. Kg2 Rh6 53. Rxh6 Rxh6 54. Kxg3 Rh1 55. Be1 Qd3 56. Qxd3 exd3 57. Kf2 d2 0-1

[Event "NED-ch U14 op"]
[Site "Hengelo"]
[Date "2000.08.12"]
[Round "9"]
[White "Offringa, Tjaart Jan"]
[Black "Soerdjan, Kiran"]
[Result "1/2-1/2"]
[ECO "D13"]
[PlyCount "141"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 e6 6. Bg5 Nbd7 7. e3 Be7 8. Bd3 a6 9. a4 0-0 10. Qc2 h6 11. Bh4 b6 12. 0-0 Bb7 13. Rfc1 Rc8 14. Qe2 Nb8 15. Bg3 Nfd7 16. Na2 Bf6 17. Rxc8 Qxc8 18. Rc1 Nc6 19. b4 Qa8 20. h3 e5 21. b5 axb5 22. axb5 Nxd4 23. exd4 e4 24. Bb1 exf3 25. Qxf3 Re8 26. Qf5 Nf8 27. Rc7 Bc8 28. Qd3 Be6 29. Bd6 Qd8 30. Bg3 Re7 31. Rxe7 Qxe7 32. Be5 Bxe5 33. dxe5 Qc5 34. Nc3 Qb4 35. Bc2 d4 36. Ne4 Bd7 37. Qf3 Bxb5 38. Nd6 Qe1+ 39. Kh2 Qxe5+ 40. Qg3 Qxg3+ 41. Kxg3 d3 42. Bb3 Ba6 43. Nxf7 Kh7 44. Ne5 Ng6 45. Nf3 Ne7 46. Kf4 Nc6 47. Ke3 Kg6 48. Ne1 Nb4 49. f3 Kf5 50. Bg8 Kg6 51. Bb3 Kf6 52. Kd2 Kg5 53. Kc3 d2 54. Kxd2 Kf4 55. h4 Kg3 56. h5 Bf1 57. Kc3 Nc6 58. Bd5 Ne7 59. Be4 Bxg2 60. Kd4 Bf1 61. Ke5 Kh4 62. Ke6 Nc8 63. Bg6 Kg5 64. Kf7 b5 65. Kxg7 b4 66. f4+ Kxf4 67. Kxh6 Ne7 68. Bb1 Bc4 69. Kg7 Ng8 70. Nd3+ Kg5 71. Nxb4 1/2-1/2

[Event "NED-ch U14 op"]
[Site "Hengelo"]
[Date "2000.08.11"]
[Round "8"]
[White "Barbe, Tom"]
[Black "Offringa, Tjaart Jan"]
[Result "1/2-1/2"]
[ECO "D31"]
[PlyCount "68"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. e3 b5 6. a4 Bb4 7. axb5 cxb5 8. Bd2 Bxc3 9. Bxc3 a6 10. d5 Nf6 11. dxe6 Qxd1+ 12. Rxd1 Bxe6 13. Be2 Nbd7 14. 0-0 0-0 15. Nd4 Bg4 16. Bxg4 Nxg4 17. Nxb5 axb5 18. Rxd7 Rfd8 19. Rxd8+ Rxd8 20. h3 Nf6 21. Ra1 h6 22. Bxf6 gxf6 23. Ra5 b4 24. Rb5 c3 25. bxc3 bxc3 26. Rc5 Rd1+ 27. Kh2 Rd2 28. Kg3 Rc2 29. Kf3 Kf8 30. g4 Ke7 31. h4 Kd6 32. Rc8 Ke5 33. Rc7 Kd6 34. Rc8 Ke5 1/2-1/2

[Event "NED-ch U14 op"]
[Site "Hengelo"]
[Date "2000.08.11"]
[Round "7"]
[White "Struik, Tjapko"]
[Black "Offringa, Tjaart Jan"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "53"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 exd5 5. d4 cxd4 6. Nxd4 Nc6 7. Bf4 Nf6 8. Nb5 Bc5 9. Nc7+ Kf8 10. Nxa8 Ne4 11. Bg3 Nxg3 12. hxg3 Be6 13. b4 Bd6 14. b5 Ne5 15. f4 Nd7 16. Bd3 g6 17. Qe2 Kg7 18. Nd2 Re8 19. 0-0-0 d4 20. Ne4 Ba3+ 21. Kb1 Bf5 22. Qf2 Rxe4 23. Bxe4 Bxe4+ 24. Ka1 Qa5 25. Qxd4+ Kg8 26. Rxh7 f6 27. Qc4+ 1-0

[Event "NED-ch U14 op"]
[Site "Hengelo"]
[Date "2000.08.10"]
[Round "6"]
[White "Offringa, Tjaart Jan"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "A70"]
[PlyCount "55"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 e6 2. c4 c5 3. d5 Nf6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 a6 8. a4 Bg4 9. h3 Bxf3 10. Qxf3 Nbd7 11. Bf4 Qe7 12. Bd3 Bg7 13. 0-0 Nh5 14. Bh2 Ne5 15. Qe3 Nxd3 16. Qxd3 0-0 17. Rfe1 Rae8 18. Rab1 f5 19. f3 Qh4 20. Bxd6 Bd4+ 21. Kh1 f4 22. Qe2 Bf2 23. Rec1 Rf5 24. exf5 Rxe2 25. fxg6 Ng3+ 26. Kh2 Nf1+ 27. Rxf1 Bg1+ 28. Rxg1 1-0

[Event "NED-ch U14 op"]
[Site "Hengelo"]
[Date "2000.08.09"]
[Round "5"]
[White "Offringa, Tjaart Jan"]
[Black "De Wit, Tex"]
[Result "1-0"]
[ECO "E87"]
[PlyCount "65"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 Nbd7 7. Qd2 e5 8. d5 Ne8 9. Nge2 Nb6 10. Ng3 f5 11. exf5 gxf5 12. Bg5 Bf6 13. Bxf6 Qxf6 14. 0-0-0 Bd7 15. Bd3 Ng7 16. h4 c6 17. Be2 Rad8 18. h5 cxd5 19. Nxd5 Nxd5 20. Qxd5+ Be6 21. Qxb7 Qg5+ 22. Kb1 Qxg3 23. h6 Ne8 24. Qe7 Nc7 25. Qxc7 Rd7 26. Qc6 Rfd8 27. c5 Qf2 28. Bb5 f4 29. Rhf1 Bf5+ 30. Ka1 dxc5 31. Bc4+ Kf8 32. Qf6+ Ke8 33. Qxd8+ 1-0

[Event "NED-ch U14 op"]
[Site "Hengelo"]
[Date "2000.08.09"]
[Round "4"]
[White "Timmermans, Bart"]
[Black "Offringa, Tjaart Jan"]
[Result "1/2-1/2"]
[ECO "B55"]
[PlyCount "71"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Bg5 Nxe4 6. Bd3 Nxg5 7. 0-0 Ne6 8. Nf3 g6 9. Nc3 Bg7 10. Qd2 Nd7 11. Rfe1 Nec5 12. Bc4 0-0 13. Rab1 Ne5 14. Be2 Be6 15. b3 Rc8 16. Qe3 b6 17. Rbd1 Re8 18. Nd4 Ned7 19. Bb5 Rf8 20. Nc6 Qe8 21. Nd5 Bxd5 22. Nxe7+ Kh8 23. Nxc8 Qxc8 24. Rxd5 Qc7 25. Qe7 Be5 26. Bxd7 Nxd7 27. Rexe5 dxe5 28. Rxd7 Qb8 29. Rb7 Qd8 30. Qxe5+ f6 31. Qe1 Re8 32. Qa1 Re6 33. h3 Qd2 34. Kf1 Qe2+ 35. Kg1 Qd2 36. Kf1 1/2-1/2

[Event "NED-ch U14 op"]
[Site "Hengelo"]
[Date "2000.08.08"]
[Round "3"]
[White "Offringa, Tjaart Jan"]
[Black "Van Vliet, Jeffrey"]
[Result "0-1"]
[ECO "D50"]
[PlyCount "88"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. Bg5 cxd4 6. Nxd4 Be7 7. e3 0-0 8. Bd3 Nc6 9. Nxc6 bxc6 10. Qc2 h6 11. Bh4 Ba6 12. Rd1 Qa5 13. cxd5 Bxd3 14. Rxd3 cxd5 15. 0-0 Rfc8 16. Qe2 Rab8 17. a3 Qa6 18. Rfd1 Qc4 19. Bg3 Rb3 20. f3 Bxa3 21. R1d2 Bxb2 22. Nxd5 Rxd3 23. Nxf6+ Bxf6 24. Qxd3 Qxd3 25. Rxd3 a5 26. Ra3 Ra8 27. Bc7 a4 28. Bd6 Bb2 29. Ra2 a3 30. Kf2 f5 31. Ke2 Kf7 32. Bb4 g5 33. Kd3 e5 34. g3 Ke6 35. Kc4 e4 36. f4 gxf4 37. gxf4 Kf7 38. Kb3 Kg6 39. Bxa3 Bxa3 40. Rxa3 Rxa3+ 41. Kxa3 Kh5 42. Kb4 Kg4 43. Kc3 h5 44. Kd4 Kf3 0-1

[Event "NED-ch U14 op"]
[Site "Hengelo"]
[Date "2000.08.08"]
[Round "2"]
[White "Stuijts, Marielle"]
[Black "Offringa, Tjaart Jan"]
[Result "0-1"]
[ECO "B40"]
[PlyCount "76"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. e5 Nd5 7. Bd2 Nxc3 8. Bxc3 Bxc3+ 9. bxc3 b6 10. Qf3 Nc6 11. Nxc6 dxc6 12. Qxc6+ Bd7 13. Qd6 Rc8 14. Qd4 0-0 15. Bd3 Qc7 16. 0-0 Rfd8 17. Qe4 g6 18. c4 Bc6 19. Qe3 Bb7 20. Qg3 Rd4 21. Rad1 Rcd8 22. Rfe1 Ba6 23. Qf3 Bxc4 24. Bxc4 Qxc4 25. Rxd4 Qxd4 26. c3 Qa4 27. Qe2 Qa5 28. c4 Rd2 29. Qf3 Rxa2 30. Rd1 Ra1 31. h3 Qxe5 32. Rxa1 Qxa1+ 33. Kh2 Qe5+ 34. g3 Qc7 35. h4 Qxc4 36. Qa8+ Kg7 37. Qxa7 b5 38. Qa1+ Kf8 0-1

[Event "NED-ch U14 op"]
[Site "Hengelo"]
[Date "2000.08.07"]
[Round "1"]
[White "Offringa, Tjaart Jan"]
[Black "Van der Lest, Menno"]
[Result "1-0"]
[ECO "A65"]
[PlyCount "59"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 c5 7. d5 e6 8. Qd2 exd5 9. cxd5 Re8 10. Nge2 a6 11. a4 Nbd7 12. Bh6 Bh8 13. Ng3 Qa5 14. Nf5 Qc7 15. h4 Ne5 16. Ng3 Qa5 17. h5 b5 18. hxg6 Nxg6 19. Bg5 Nd7 20. Nf5 Nde5 21. Nxd6 b4 22. Nd1 Rf8 23. f4 Nd7 24. f5 Nge5 25. Be7 Qc7 26. Bxf8 Nxf8 27. Qg5+ Bg7 28. f6 Nfg6 29. Ne8 Qd8 30. Nxg7 1-0

[Event "Utrecht OKU op-B"]
[Site "Utrecht"]
[Date "2000.05.21"]
[Round "5"]
[White "Gouma, Ronald"]
[Black "Offringa, Tjaart Jan"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "1882"]
[BlackElo "1612"]
[PlyCount "50"]
[EventDate "2000.05.??"]
[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. c3 d5 3. exd5 Qxd5 4. d4 cxd4 5. cxd4 Nc6 6. Nf3 Bg4 7. Be2 e6 8. 0-0 Nf6 9. Nc3 Qd8 10. Be3 Bb4 11. h3 Bh5 12. a3 Ba5 13. b4 Bb6 14. b5 Ne7 15. Rc1 0-0 16. Qb3 h6 17. Rfd1 Nfd5 18. Nxd5 Nxd5 19. g4 Bg6 20. Bd3 Qf6 21. Ne5 Nxe3 22. fxe3 Qh4 23. Bxg6 Qg3+ 24. Kh1 Qxh3+ 25. Kg1 Qg3+ 1/2-1/2

[Event "Utrecht OKU op-B"]
[Site "Utrecht"]
[Date "2000.05.21"]
[Round "6"]
[White "Offringa, Tjaart Jan"]
[Black "Vellekoop, Kees"]
[Result "0-1"]
[ECO "A97"]
[WhiteElo "1612"]
[BlackElo "1655"]
[PlyCount "90"]
[EventDate "2000.05.??"]
[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 f5 2. c4 e6 3. Nc3 Nf6 4. g3 Be7 5. Bg2 0-0 6. Nf3 d6 7. 0-0 Qe8 8. Bd2 Qh5 9. Qc2 Nbd7 10. Nb5 Bd8 11. Ng5 Nb6 12. Bf3 Ng4 13. Bxg4 fxg4 14. Ne4 e5 15. dxe5 Qxe5 16. Bf4 Qf5 17. Nd4 Qg6 18. Nd2 Qxc2 19. Nxc2 Bf6 20. Rab1 Re8 21. Ne3 Be6 22. b3 Bd7 23. Ng2 Rxe2 24. Be3 Bc3 25. Nf4 Rxe3 26. fxe3 Bxd2 27. e4 Re8 28. Nd5 Nxd5 29. exd5 g6 30. Rfd1 Bf5 31. Rb2 Bc3 32. Rf2 Bb4 33. Rb2 Re3 34. Kf1 Bd3+ 35. Kg2 Bc5 36. Rbd2 Be4+ 37. Kf1 Rf3+ 38. Ke2 Bb4 39. Rd4 Bf5 40. Rf1 Rxf1 41. Kxf1 Bb1 42. a4 Bc2 43. Ke2 Bxb3 44. Re4 Bxa4 45. Re8+ Bxe8 0-1

[Event "Utrecht OKU op-B"]
[Site "Utrecht"]
[Date "2000.05.20"]
[Round "4"]
[White "Bollaart, Jeroen"]
[Black "Offringa, Tjaart Jan"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "1781"]
[BlackElo "1612"]
[PlyCount "72"]
[EventDate "2000.05.??"]
[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 e6 3. Nc3 c6 4. Nf3 dxc4 5. a4 Bb4 6. e3 b5 7. Bd2 a5 8. Be2 Bb7 9. 0-0 Qd7 10. e4 Nf6 11. Qc2 0-0 12. e5 Nd5 13. Ne4 Bxd2 14. Nc5 Qc7 15. Nxd2 Na6 16. Nxa6 Bxa6 17. Ne4 Nb6 18. axb5 cxb5 19. b3 a4 20. bxc4 bxc4 21. Nc5 Bb7 22. Nxb7 Qxb7 23. Bf3 Nd5 24. Qxc4 Rfc8 25. Qd3 Qd7 26. Bxd5 Qxd5 27. Rfc1 Qd7 28. Rd1 g6 29. h3 Rab8 30. Ra3 Rb2 31. Rd2 Rc1+ 32. Kh2 Rbb1 33. Qe4 f6 34. exf6 Qd6+ 35. Qe5 Rh1+ 36. Kg3 Qxa3+ 0-1

[Event "Utrecht OKU op-B"]
[Site "Utrecht"]
[Date "2000.05.20"]
[Round "3"]
[White "Offringa, Tjaart Jan"]
[Black "De Jager, Leo"]
[Result "1-0"]
[ECO "E63"]
[WhiteElo "1612"]
[BlackElo "1781"]
[PlyCount "63"]
[EventDate "2000.05.??"]
[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 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 0-0 5. Bg2 d6 6. Nf3 a6 7. 0-0 Nc6 8. a3 Na5 9. Qa4 c5 10. dxc5 Bd7 11. Qc2 dxc5 12. b3 Bf5 13. Qa2 Ne4 14. Nxe4 Bxa1 15. Qxa1 Nxb3 16. Qb2 Nxc1 17. Nc3 Nxe2+ 18. Nxe2 Qc7 19. Nf4 Be4 20. Re1 Bc6 21. Nd2 Bxg2 22. Kxg2 Rfe8 23. Nd5 Qd8 24. Ne4 Qa5 25. Re3 f5 26. Ng5 e5 27. Nf6+ Kg7 28. Nxe8+ Rxe8 29. Rxe5 Rxe5 30. Qxe5+ Kh6 31. Nf7+ Kh5 32. Qf4 1-0

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.14"]
[Round "9"]
[White "Euser, Kasper"]
[Black "Offringa, Tjaart Jan"]
[Result "0-1"]
[ECO "D31"]
[PlyCount "54"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 e6 4. a3 dxc4 5. e4 b5 6. Bf4 Nf6 7. Bg5 Be7 8. g3 h6 9. Bxf6 Bxf6 10. e5 Be7 11. Bg2 a6 12. Nge2 Bb7 13. 0-0 Qc7 14. Qc2 Nd7 15. Rab1 Nb6 16. b4 a5 17. Rfd1 axb4 18. axb4 0-0 19. Ne4 Nd7 20. Nc5 Bxc5 21. dxc5 Nxe5 22. Rd6 Rfd8 23. Rbd1 Rxd6 24. Rxd6 Rd8 25. Qe4 Rxd6 26. cxd6 Qxd6 27. Qb1 Nd3 0-1

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.13"]
[Round "8"]
[White "Offringa, Tjaart Jan"]
[Black "Beck, Leonie"]
[Result "0-1"]
[ECO "D55"]
[PlyCount "106"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. Nf3 b6 7. e3 0-0 8. Bd3 Nbd7 9. 0-0 Bb7 10. Qc2 h6 11. Bh4 Re8 12. Rac1 c5 13. b3 Rc8 14. Bxf6 Nxf6 15. Ne5 cxd4 16. exd4 Ba3 17. Bb5 Rf8 18. Qd2 Bxc1 19. Rxc1 a6 20. Bd3 Re8 21. h3 Ne4 22. Nxe4 dxe4 23. Rxc8 Bxc8 24. Qf4 Qe7 25. Bxe4 Bb7 26. Bd3 Rf8 27. Qf5 g6 28. Qf4 Qg5 29. Qxg5 hxg5 30. Bc4 Kg7 31. Bxf7 Rxf7 32. Nxf7 Kxf7 33. f3 Ke6 34. Kf2 Kd5 35. Ke3 a5 36. g3 Ke6 37. g4 Kf6 38. f4 Bc6 39. a3 Bb7 40. b4 axb4 41. axb4 b5 42. h4 gxh4 43. Kf2 Ke6 44. Kg1 Kd5 45. Kh2 Kxd4 46. Kh3 Ke4 47. Kxh4 Kxf4 48. g5 Be4 49. Kh3 Kxg5 50. Kg3 Bd5 51. Kf2 Kg4 52. Kg1 Kg3 53. Kf1 Kh2 0-1

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.13"]
[Round "7"]
[White "Offringa, Tjaart Jan"]
[Black "Lettinga, Niels"]
[Result "1-0"]
[ECO "D10"]
[PlyCount "79"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Bg5 Qb6 5. Qd2 Bf5 6. e3 h6 7. Bxf6 exf6 8. cxd5 cxd5 9. Nxd5 Qd8 10. Nc3 Nc6 11. Bb5 Qb6 12. d5 0-0-0 13. e4 Bg6 14. Rc1 Bb4 15. Qe2 Nd4 16. Qc4+ Kb8 17. Qxb4 Nxb5 18. Qxb5 Qxb5 19. Nxb5 Bxe4 20. Nf3 Bxf3 21. gxf3 Rhe8+ 22. Kf1 Rxd5 23. Nc7 Rc8 24. Nxd5 Rxc1+ 25. Kg2 Rxh1 26. Kxh1 Kc8 27. Ne7+ Kd7 28. Nf5 Kc6 29. Nxg7 Kc5 30. Nf5 b5 31. Nxh6 Kd4 32. Ng4 a5 33. h4 Kd3 34. Ne3 Kd2 35. h5 Kc1 36. h6 Kxb2 37. h7 Kxa2 38. h8Q b4 39. Qxf6 b3 40. Nc4 1-0

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.12"]
[Round "6"]
[White "Groen, Robbert"]
[Black "Offringa, Tjaart Jan"]
[Result "1/2-1/2"]
[ECO "C02"]
[PlyCount "50"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Nge7 6. Bg5 cxd4 7. cxd4 Bd7 8. Nc3 Qb6 9. Bxe7 Bxe7 10. Qd2 a6 11. Be2 Rc8 12. 0-0 Na7 13. a3 Bb5 14. Nxb5 Nxb5 15. Rac1 0-0 16. h3 f6 17. exf6 Bxf6 18. Qb4 Qd6 19. Bxb5 Qxb4 20. axb4 axb5 21. Rc5 Rxc5 22. bxc5 Ra8 23. Rb1 Ra4 24. b4 Kf7 25. g4 h6 1/2-1/2

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.11"]
[Round "4"]
[White "Boguslavskij, Taras"]
[Black "Offringa, Tjaart Jan"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "112"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. e3 Nc6 3. Bd3 Nf6 4. Nf3 Bg4 5. h3 Bh5 6. 0-0 e6 7. Bd2 Bd6 8. Nc3 0-0 9. a3 Re8 10. Nb5 a6 11. Nxd6 Qxd6 12. Be2 e5 13. dxe5 Nxe5 14. Nxe5 Bxe2 15. Nxf7 Kxf7 16. Qxe2 Kg8 17. Bc3 Ne4 18. Qg4 Nxc3 19. bxc3 Qc6 20. Qd4 Re4 21. Qd2 Rc4 22. Rfd1 Rd8 23. Rdc1 Rxc3 24. e4 d4 25. e5 Qc5 26. e6 Re8 27. Re1 Rxc2 28. Qf4 Re7 29. Qe4 Qc6 30. Qxc6 Rxc6 31. Rad1 Rcxe6 32. Rxe6 Rxe6 33. Rxd4 Kf7 34. Rd7+ Re7 35. Rd8 Kg6 36. Rb8 b6 37. Rc8 Re1+ 38. Kh2 Rc1 39. Rd8 Rc3 40. Rd7 b5 41. f4 Rc5 42. Rd3 a5 43. Rg3+ Kf6 44. Re3 b4 45. axb4 axb4 46. Rb3 Rb5 47. Kg3 c5 48. Kf3 c4 49. Rb1 c3 50. Ke4 b3 51. Ra1 b2 52. Ra6+ Kf7 53. Ra7+ Kg6 54. g4 b1Q+ 55. Kf3 Qd3+ 56. Kg2 Rb2+ 0-1

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.11"]
[Round "5"]
[White "Offringa, Tjaart Jan"]
[Black "Willemze, Annemieke"]
[Result "1/2-1/2"]
[ECO "E85"]
[PlyCount "45"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. d5 Nh5 8. Nge2 Nd7 9. Qd2 a5 10. g4 Nhf6 11. h4 h5 12. g5 Ne8 13. Ng3 Qe7 14. Bd3 Nc5 15. Rf1 Nxd3+ 16. Qxd3 c6 17. f4 f5 18. exf5 Bxf5 19. Nxf5 gxf5 20. Qe2 exf4 21. Bxf4 Qxe2+ 22. Kxe2 Be5 23. Rad1 1/2-1/2

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.10"]
[Round "2"]
[White "Hummel, Erik Jan"]
[Black "Offringa, Tjaart Jan"]
[Result "1-0"]
[ECO "B09"]
[PlyCount "45"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 0-0 6. Bc4 Nbd7 7. 0-0 c5 8. d5 Nb6 9. Be2 Re8 10. a4 Ng4 11. a5 Nd7 12. Bc4 a6 13. h3 Bxc3 14. bxc3 Ngf6 15. e5 Nh5 16. e6 fxe6 17. dxe6 Nf8 18. f5 Ng3 19. Ng5 Nxf1 20. Qxf1 d5 21. fxg6 hxg6 22. Qf7+ Kh8 23. Bf4 1-0

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.10"]
[Round "3"]
[White "Offringa, Tjaart Jan"]
[Black "Dekker, Sonja"]
[Result "1-0"]
[ECO "D07"]
[PlyCount "49"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nc3 Nc6 4. e3 Nf6 5. Bxc4 e6 6. Nf3 Bd6 7. 0-0 0-0 8. d5 exd5 9. Nxd5 Nxd5 10. Bxd5 Bg4 11. h3 Bxf3 12. Qxf3 Qe7 13. b3 Qe5 14. g3 Qxa1 15. Be4 Qe5 16. Rd1 Qe6 17. Bb2 Qxh3 18. Rd5 Qh6 19. Rh5 Qe6 20. Bxh7+ Kh8 21. Bf5+ Qh6 22. Rxh6+ Kg8 23. Rh8+ Kxh8 24. Qh5+ Kg8 25. Qh7# 1-0

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.09"]
[Round "1"]
[White "Offringa, Tjaart Jan"]
[Black "Michielsen, Joost"]
[Result "0-1"]
[ECO "A32"]
[PlyCount "68"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nc3 c5 4. Nf3 cxd4 5. Nxd4 d5 6. cxd5 Nxd5 7. g3 Nxc3 8. bxc3 Bd6 9. Bg2 a6 10. 0-0 0-0 11. Rb1 Qc7 12. Qb3 Nd7 13. Bxb7 Nc5 14. Bxa8 Nxb3 15. Rxb3 e5 16. Nc2 Be6 17. c4 Rxa8 18. Ne3 Rb8 19. Rd1 f5 20. Bb2 f4 21. Nd5 Qxc4 22. Ne7+ Kf7 23. Rxd6 Rxb3 24. axb3 Qc5 25. Rxa6 Qxe7 26. Bxe5 fxg3 27. Bxg3 Qb7 28. Ra4 Qxb3 29. Ra7+ Kg6 30. e3 Qd1+ 31. Kg2 Bd5+ 32. Kh3 Qh5+ 33. Bh4 Qf5+ 34. Kg3 Qf3# 0-1

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Blees, Enrico"]
[Black "Offringa, Tjaart Jan"]
[Result "0-1"]
[ECO "B90"]
[PlyCount "108"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[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. a3 e5 7. Nf3 Nbd7 8. Bc4 Nc5 9. Bd3 Bg4 10. h3 Bh5 11. b4 Nxd3+ 12. cxd3 Qc7 13. Bd2 Be7 14. Rc1 Qd7 15. Bg5 0-0 16. Bxf6 Bxf6 17. Nd5 Bd8 18. g4 Bg6 19. Nd2 Re8 20. Nc4 Rc8 21. h4 f6 22. Ndb6 Bxb6 23. Nxb6 Rxc1 24. Nxd7 Rxd1+ 25. Kxd1 Rd8 26. Nb6 Bf7 27. Kd2 d5 28. exd5 Bxd5 29. Nxd5 Rxd5 30. Ke3 Kf7 31. Rc1 Rd7 32. Rc2 Ke6 33. Rc5 g6 34. f3 f5 35. gxf5+ gxf5 36. Rc3 f4+ 37. Ke2 Kf5 38. Rc1 Kg6 39. Rg1+ Kh5 40. Rg5+ Kxh4 41. Rxe5 h5 42. Re6 Kg3 43. Rh6 h4 44. Rh5 h3 45. Rh6 h2 46. Rh5 Re7+ 47. Kd2 Re3 48. d4 Rxf3 49. d5 Re3 50. d6 Re8 51. d7 Rd8 52. Ke2 Rxd7 53. a4 f3+ 54. Ke1 f2+ 0-1

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Broekmeulen, Jasper"]
[Black "Offringa, Tjaart Jan"]
[Result "1-0"]
[ECO "B65"]
[PlyCount "55"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nc6 8. Be2 Be7 9. Qd2 h6 10. Bh4 0-0 11. 0-0-0 Qb6 12. Nb3 Rd8 13. Bxf6 Bxf6 14. g4 e5 15. Nd5 Qf2 16. Nxf6+ gxf6 17. Rdf1 Qb6 18. g5 exf4 19. Qxf4 hxg5 20. Qxf6 Qe3+ 21. Kb1 Be6 22. Bh5 Ne5 23. Rhg1 Nd7 24. Bxf7+ Kf8 25. Qxe6 Qxg1 26. Rxg1 Ne5 27. Rxg5 Nxf7 28. Rf5 1-0

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "De Clerck, Martijn"]
[Black "Offringa, Tjaart Jan"]
[Result "1/2-1/2"]
[ECO "E01"]
[PlyCount "50"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 d5 4. c4 c5 5. dxc5 Bxc5 6. a3 0-0 7. b4 Bd6 8. c5 Bc7 9. Bg2 b6 10. cxb6 Bxb6 11. Bb2 Nbd7 12. 0-0 Bb7 13. e3 Rc8 14. Bd4 Bxd4 15. Qxd4 Qb6 16. Qxb6 Nxb6 17. Nbd2 Nc4 18. Nxc4 Rxc4 19. Rac1 Rfc8 20. Rxc4 Rxc4 21. Nd4 h6 22. Nb5 a6 23. Nd6 Rc7 24. Nxb7 Rxb7 25. Rc1 Nd7 1/2-1/2

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Michielsen, Joost"]
[Black "Offringa, Tjaart Jan"]
[Result "1-0"]
[ECO "B98"]
[PlyCount "117"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 8. Bh4 Be7 9. Qf3 Nbd7 10. 0-0-0 0-0 11. g4 e5 12. Nf5 Re8 13. Bc4 Nb6 14. Bxf6 Bxf6 15. Rxd6 Qc7 16. Rxb6 Qxb6 17. Nd5 Qc6 18. Bb3 Bxf5 19. gxf5 exf4 20. Rg1 Bg5 21. Kb1 Rad8 22. h4 Bxh4 23. Qxf4 Bg5 24. Qf3 a5 25. a3 a4 26. Ba2 Rc8 27. c3 Qc5 28. Rg2 Re5 29. f6 Kh7 30. fxg7 Rg8 31. Qxf7 Rxg7 32. Qh5 Qf8 33. Qe2 Be7 34. Rf2 Rf7 35. Rg2 Rf1+ 36. Kc2 Qf3 37. Qxf3 Rxf3 38. Kd2 Rxe4 39. Bb1 Bg5+ 40. Rxg5 hxg5 41. Bxe4+ Kh6 42. Bxf3 b5 43. Nc7 Kg6 44. Nxb5 Kf5 45. Nd4+ Kf4 46. Ke2 g4 47. Bxg4 Kxg4 48. Ke3 Kg5 49. Kd3 Kf6 50. Kc4 Ke7 51. Kb4 Kd7 52. Kxa4 Kc7 53. Kb5 Kb8 54. a4 Kb7 55. a5 Ka7 56. a6 Ka8 57. Kb6 Kb8 58. Nb5 Ka8 59. Nc7+ 1-0

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Offringa, Tjaart Jan"]
[Black "De Zeeuw, S."]
[Result "1-0"]
[ECO "D20"]
[PlyCount "67"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nc3 e6 4. e3 Nc6 5. Bxc4 Nf6 6. Nf3 Bb4 7. Bd2 Bxc3 8. Bxc3 Ne4 9. 0-0 g5 10. d5 exd5 11. Bxh8 dxc4 12. Qxd8+ Nxd8 13. Rac1 Be6 14. Ne5 f6 15. Nf3 Nf7 16. Bg7 0-0-0 17. Nd4 Bd5 18. f3 Ned6 19. Bxf6 Re8 20. e4 Bc6 21. Nxc6 bxc6 22. Bd4 Nb5 23. Rxc4 Nfd6 24. Ra4 Kb8 25. Rc1 Kb7 26. Bc5 Nc8 27. Re1 Nb6 28. Bxb6 Kxb6 29. e5 c5 30. h4 h6 31. hxg5 hxg5 32. Rg4 Nd6 33. Kf2 Nf7 34. e6 1-0

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Offringa, Tjaart Jan"]
[Black "Goudriaan, Etienne"]
[Result "1-0"]
[ECO "D51"]
[PlyCount "125"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. Nf3 Bd6 6. e3 0-0 7. Bd3 dxc4 8. Bxc4 Nb6 9. Bb3 Bd7 10. Ne5 Re8 11. 0-0 Qe7 12. Qf3 Bc6 13. Nxc6 bxc6 14. Qxc6 Rad8 15. Qf3 c5 16. Bxf6 Qxf6 17. Qxf6 gxf6 18. dxc5 Bxc5 19. Ne4 Be7 20. h3 f5 21. Nc3 Bb4 22. Rfd1 Rc8 23. Rac1 Nc4 24. Bxc4 Rxc4 25. Rd7 Rec8 26. Rxa7 Bxc3 27. Rxc3 Rxc3 28. bxc3 Rxc3 29. Kf1 Kg7 30. Ke2 Rc1 31. Kd2 Rg1 32. g3 Rg2 33. Ke2 Rh2 34. h4 Rh1 35. a4 Ra1 36. Kd2 Kf6 37. Kc2 Ra2+ 38. Kb3 Rxf2 39. a5 Rf3 40. Kb4 Rxe3 41. a6 Re4+ 42. Kb5 Re3 43. Rb7 Ra3 44. a7 e5 45. Rb6+ Kg7 46. Ra6 Rb3+ 47. Kc6 Rc3+ 48. Kb7 Rb3+ 49. Rb6 Ra3 50. a8Q Rxa8 51. Kxa8 f6 52. Rb1 e4 53. Kb7 Kf7 54. Kc6 Ke6 55. Kc5 Ke5 56. Kc4 f4 57. gxf4+ Kxf4 58. Kd4 f5 59. Re1 h5 60. Re2 Kg4 61. Ke5 Kxh4 62. Kxf5 Kg3 63. Re3+ 1-0

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Offringa, Tjaart Jan"]
[Black "Muris, Yvo"]
[Result "1/2-1/2"]
[ECO "A43"]
[PlyCount "23"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 c5 2. dxc5 e6 3. Nf3 Bxc5 4. Nc3 d5 5. Bf4 Qb6 6. e3 Qxb2 7. Nb5 Na6 8. Be5 Qb4+ 9. c3 Qg4 10. h3 Qg6 11. Bd3 f5 12. 0-0 1/2-1/2

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Offringa, Tjaart Jan"]
[Black "Tonoli, Benjamin"]
[Result "1/2-1/2"]
[ECO "D06"]
[PlyCount "126"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[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 Bf5 5. Nf3 e6 6. e3 Bb4 7. Be2 h6 8. Bh4 g5 9. Bg3 Ne4 10. Rc1 Qa5 11. Qb3 Nxg3 12. hxg3 Bxc3+ 13. Rxc3 Qb6 14. Nxg5 Nd7 15. Nf3 Nf6 16. Nd2 h5 17. c5 Qc7 18. Rc1 Ng4 19. Bd3 Bxd3 20. Qxd3 f6 21. Qg6+ Qf7 22. Qxf7+ Kxf7 23. e4 e5 24. exd5 cxd5 25. Nb3 Rac8 26. Ke2 Kg6 27. f3 Nh6 28. dxe5 Nf5 29. Kf2 fxe5 30. Rhe1 Kf6 31. a3 Rhg8 32. Rh1 Rh8 33. Na5 b6 34. Nb3 Rc6 35. cxb6 Rxb6 36. Nd2 Rxb2 37. Rhd1 Rb6 38. Rc7 Ra6 39. Ra1 Rg8 40. Rh1 Rxa3 41. Rxh5 Nxg3 42. Rh6+ Kg5 43. Rch7 Nf5 44. Rh5+ Kg6 45. g4 Ng7 46. R7h6+ Kf7 47. Rh7 Ra2 48. Ke1 a5 49. Rxe5 d4 50. Nc4 a4 51. Ra5 Re8+ 52. Ne5+ Kf6 53. Rh6+ Kg5 54. Rg6+ Kf4 55. Rf6+ Kg3 56. Rg6 Re7 57. Rd6 Rb2 58. Rxd4 a3 59. Kd1 a2 60. Rda4 Rb1+ 61. Kc2 a1Q 62. Rxa1 Rxa1 63. Rxa1 Rxe5 1/2-1/2

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Offringa, Tjaart Jan"]
[Black "Van de Put, Jeroen"]
[Result "0-1"]
[ECO "E53"]
[PlyCount "104"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 d5 6. Nf3 c5 7. Bd2 Nc6 8. 0-0 Qc7 9. a3 Bxc3 10. Bxc3 b6 11. dxc5 bxc5 12. Bxf6 gxf6 13. Nd2 Ne7 14. e4 d4 15. Re1 e5 16. Qf3 Qd6 17. Qg3+ Kh8 18. Be2 Rg8 19. Qb3 Bd7 20. Qc2 Bh3 21. g3 f5 22. Bf1 Bxf1 23. Rxf1 f4 24. Nf3 Ng6 25. Rad1 Qe7 26. Kh1 Rg7 27. Rg1 Rag8 28. Qe2 Qf6 29. Rd3 h6 30. Rdd1 Qe6 31. Rc1 f5 32. exf5 Qxf5 33. Rce1 Re8 34. Qe4 Qxe4 35. Rxe4 Rge7 36. Rge1 fxg3 37. fxg3 Kg7 38. Kg2 Kf6 39. Kf2 Rb8 40. R4e2 Kf5 41. h3 e4 42. Nh2 e3+ 43. Kg1 Ne5 44. Rc1 Ke4 45. Rf1 Nxc4 46. Rc2 Kd3 47. Rcc1 Rxb2 48. Rcd1+ Rd2 49. Nf3 Rxd1 50. Rxd1+ Ke2 51. Rf1 Nd2 52. Nxd2 Kxd2 0-1

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Offringa, Tjaart Jan"]
[Black "Van der Vurst, Arne"]
[Result "1-0"]
[ECO "A40"]
[PlyCount "31"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nc6 2. d5 Ne5 3. e4 Nf6 4. Nc3 d6 5. Nf3 Ng6 6. Bg5 h6 7. Bxf6 exf6 8. Bb5+ Bd7 9. Bxd7+ Qxd7 10. 0-0 Be7 11. Nd4 0-0 12. Nf5 Ne5 13. f4 Nc4 14. Qg4 g6 15. Nxh6+ Kh7 16. Qxd7 1-0

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Swinkels, Robin"]
[Black "Offringa, Tjaart Jan"]
[Result "0-1"]
[ECO "B96"]
[PlyCount "84"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 8. Bh4 Nc6 9. Be2 Be7 10. Bf2 0-0 11. g4 e5 12. Nxc6 bxc6 13. f5 Bb7 14. Qd2 d5 15. Bf3 dxe4 16. Qxd8 Rfxd8 17. Nxe4 Nxe4 18. Bxe4 Rd7 19. 0-0 c5 20. Bxb7 Rxb7 21. b3 Rc7 22. c4 Bf6 23. Rad1 Re8 24. Rd5 e4 25. Rxc5 Rxc5 26. Bxc5 e3 27. Re1 e2 28. Bf2 Bc3 29. c5 Bxe1 30. Bxe1 f6 31. Kf2 Kf7 32. h4 g6 33. fxg6+ Kxg6 34. Bd2 f5 35. gxf5+ Kxf5 36. Ke1 h5 37. b4 Kg4 38. Bg5 Kf3 39. a4 Re5 40. c6 Rd5 41. Bd2 Rd4 42. c7 Rxh4 0-1

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Van den Berg, Harmen"]
[Black "Offringa, Tjaart Jan"]
[Result "1/2-1/2"]
[ECO "B50"]
[PlyCount "73"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[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. Bc4 Bg4 4. h3 Bh5 5. d3 Nc6 6. Be3 Nf6 7. Nc3 e6 8. a3 d5 9. exd5 exd5 10. Qe2 Bxf3 11. Qxf3 dxc4 12. dxc4 Be7 13. Rd1 Qc7 14. Qe2 0-0 15. 0-0 Rad8 16. Na4 b6 17. Rfe1 Rxd1 18. Rxd1 Rd8 19. Nc3 Rxd1+ 20. Qxd1 Qd6 21. Qe2 a6 22. Na4 Ne5 23. Bf4 Nfd7 24. Nxb6 Nxb6 25. Bxe5 Qe6 26. Kf1 Nxc4 27. Bc3 Qxe2+ 28. Kxe2 f6 29. Kd3 Ne5+ 30. Ke4 Ng6 31. g3 Kf7 32. Kd5 h5 33. Kc6 h4 34. Kb6 hxg3 35. fxg3 Ne5 36. Kxa6 Nf3 37. a4 1/2-1/2

