[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2004.??.??"]
[Round "?"]
[White "Bollen, Guus"]
[Black "Perizonius, Oscar"]
[Result "1/2-1/2"]
[ECO "E72"]
[PlyCount "75"]
[EventDate "2004.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 d6 2. c4 Nf6 3. Nc3 g6 4. e4 Bg7 5. g3 Bd7 6. Bg2 Nc6 7. Nge2 e5 8. d5 Na5 9. Qd3 b6 10. b4 Nb7 11. 0-0 a5 12. bxa5 Nc5 13. Qc2 Rxa5 14. Rb1 0-0 15. Be3 Qa8 16. Bxc5 Rxc5 17. Nb5 Qa6 18. Qb3 Ra8 19. Nec3 Ne8 20. a4 c6 21. dxc6 Rxc6 22. Nd5 Rc5 23. Ra1 Qb7 24. Rfd1 Bxb5 25. axb5 Rxa1 26. Rxa1 Nf6 27. Nxf6+ Bxf6 28. Ra4 Bg5 29. Qa3 Kg7 30. Qa2 Qc8 31. Bf3 Rc7 32. Be2 Rb7 33. Ra8 Qd7 34. Kg2 h5 35. h4 Be7 36. Ra6 Qc8 37. Qd2 Qc5 38. Ra8 1/2-1/2

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2004.??.??"]
[Round "?"]
[White "Devriendt, Sander"]
[Black "Perizonius, Oscar"]
[Result "0-1"]
[ECO "B26"]
[PlyCount "138"]
[EventDate "2004.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 g6 4. Bg2 Bg7 5. d3 Nc6 6. Be3 Nf6 7. h3 Be6 8. Nge2 Rb8 9. 0-0 Qd7 10. Kh2 0-0 11. Qd2 b5 12. f4 Nd4 13. g4 Bxg4 14. hxg4 Nxg4+ 15. Kg1 Nxe3 16. Qxe3 Nxc2 17. Qf3 Nxa1 18. Rxa1 b4 19. Nd1 Qb5 20. Rc1 Qa4 21. Ne3 Bxb2 22. Rc2 Bd4 23. Rd2 Bc3 24. Rc2 Bd4 25. Rd2 b3 26. axb3 Rxb3 27. Kh2 Rb2 28. Rxb2 Bxb2 29. Nc4 Rb8 30. f5 Be5+ 31. Kh3 a5 32. fxg6 Qd7+ 33. Qg4 Qxg4+ 34. Kxg4 a4 35. gxf7+ Kxf7 36. Nc1 Bb2 37. Na2 Ba3 38. Nxa3 Rb2 39. Nc3 Rxg2+ 40. Kf3 Rh2 41. Nab5 Rb2 42. Ke3 Rb3 43. Kd2 h5 44. Nc7 e6 45. Nxa4 h4 46. Ke3 h3 47. Kf2 Rxd3 48. Nb5 Rd2+ 49. Kg1 c4 50. Nac3 d5 51. exd5 exd5 52. Kh1 d4 53. Ne4 Rd1+ 54. Kh2 c3 55. Nbxc3 dxc3 56. Nxc3 Rd2+ 57. Kh1 Kg6 58. Ne4 Rb2 59. Ng3 Kg5 60. Nf1 Rb1 61. Kh2 Rxf1 62. Kxh3 Rg1 63. Kh2 Rg4 64. Kh3 Kf4 65. Kh2 Rg8 66. Kh3 Rg7 67. Kh2 Kf3 68. Kh1 Kf2 69. Kh2 Rh7# 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2004.??.??"]
[Round "?"]
[White "Elgersma, Siebren"]
[Black "Perizonius, Oscar"]
[Result "1/2-1/2"]
[ECO "B75"]
[PlyCount "30"]
[EventDate "2004.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[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 Bd7 9. Bc4 a6 10. g4 Bxg4 11. fxg4 Nxg4 12. Nxc6 bxc6 13. Rf1 Rf8 14. h3 Nxe3 15. Qxe3 e6 1/2-1/2

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2004.??.??"]
[Round "?"]
[White "Perizonius, Oscar"]
[Black "Lauwers, Jasper"]
[Result "0-1"]
[ECO "C34"]
[PlyCount "32"]
[EventDate "2004.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 Nc6 4. d4 f5 5. e5 d6 6. Bxf4 dxe5 7. Bxe5 Nxe5 8. Nxe5 Qh4+ 9. g3 Qe4+ 10. Qe2 Qxh1 11. Nf3+ Kd8 12. Kd2 Nf6 13. Nc3 Bb4 14. Kd3 Bxc3 15. bxc3 Re8 16. Qd2 Qxf3+ 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2004.??.??"]
[Round "?"]
[White "Perizonius, Oscar"]
[Black "Van Mierlo, Guido"]
[Result "1/2-1/2"]
[ECO "C30"]
[PlyCount "41"]
[EventDate "2004.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. f4 Nc6 3. Nf3 d6 4. Bc4 Be7 5. 0-0 Nf6 6. d3 Bg4 7. Be3 exf4 8. Bxf4 h6 9. Nbd2 Be6 10. Bxe6 fxe6 11. Qe2 e5 12. Be3 Qd7 13. a3 a6 14. c4 b6 15. b4 Nd8 16. a4 Ne6 17. Nb3 Rb8 18. a5 bxa5 19. Rxa5 Rxb4 20. Rb1 Ra4 21. Ra1 1/2-1/2

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2004.??.??"]
[Round "?"]
[White "Perizonius, Oscar"]
[Black "Van Nie, Jonathan"]
[Result "0-1"]
[ECO "B21"]
[PlyCount "68"]
[EventDate "2004.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. f4 Nc6 3. Nf3 g6 4. Bc4 Bg7 5. Ng5 e6 6. d3 a6 7. Nc3 b5 8. Bb3 Bb7 9. Nf3 d6 10. Be3 Nf6 11. h3 Nd7 12. 0-0 Nb6 13. Qd2 b4 14. Nd1 Na5 15. c3 Nxb3 16. axb3 a5 17. Qc2 Qc7 18. d4 0-0 19. f5 exf5 20. exf5 Bxf3 21. Rxf3 cxd4 22. Bf2 dxc3 23. bxc3 Nd5 24. Be1 Rac8 25. Rc1 Rfe8 26. Bd2 bxc3 27. Nxc3 Nxc3 28. Bxc3 Bh6 29. Rd1 Be3+ 30. Kf1 Qxc3 31. Qxc3 Rxc3 32. Re1 Kf8 33. fxg6 hxg6 34. h4 Bd4 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2004.??.??"]
[Round "?"]
[White "Verschuren, Niels"]
[Black "Perizonius, Oscar"]
[Result "0-1"]
[ECO "B30"]
[PlyCount "100"]
[EventDate "2004.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. Bc4 Nc6 4. Nf3 Nf6 5. 0-0 g6 6. d3 Bg7 7. h3 a6 8. Be3 0-0 9. Re1 b5 10. Bb3 Bb7 11. a4 b4 12. Nd5 Nxd5 13. exd5 Ne5 14. d4 Nxf3+ 15. gxf3 Rc8 16. Bg5 Rc7 17. dxc5 dxc5 18. d6 Qxd6 19. Bxe7 Qxd1 20. Raxd1 Re8 21. Bd6 Rxe1+ 22. Rxe1 Rc8 23. Bxf7+ Kxf7 24. Re7+ Kg8 25. Rxb7 Bxb2 26. Rb6 a5 27. Ra6 c4 28. Rxa5 b3 29. cxb3 c3 30. Bf4 c2 31. b4 c1Q+ 32. Bxc1 Bxc1 33. Rc5 Rxc5 34. bxc5 Bd2 35. Kf1 Kf7 36. Ke2 Ba5 37. Kd3 Ke6 38. Kc4 Bc7 39. Kb5 Kd5 40. h4 h6 41. f4 h5 42. f3 Bd8 43. Kb4 Kc6 44. Kc4 Bxh4 45. a5 Bf2 46. Kd3 Bxc5 47. Ke4 h4 48. f5 g5 49. f6 h3 50. f7 h2 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2003.08.09"]
[Round "9"]
[White "Perizonius, Oscar"]
[Black "Vlug, Arthur"]
[Result "0-1"]
[ECO "B73"]
[PlyCount "44"]
[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 g6 6. Be2 Bg7 7. Be3 0-0 8. Qd2 Nc6 9. 0-0 Bd7 10. f4 Rc8 11. f5 Ne5 12. fxg6 hxg6 13. Bh6 Bxh6 14. Qxh6 Qb6 15. Qd2 Qxb2 16. Nd5 Nxd5 17. exd5 Qc3 18. Qf4 Nc4 19. Bxc4 Rxc4 20. Rad1 Ra4 21. Rd3 Qc5 22. Kh1 Bb5 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2003.08.08"]
[Round "8"]
[White "Perizonius, Oscar"]
[Black "Ineke, Joyce I"]
[Result "1-0"]
[ECO "C37"]
[PlyCount "57"]
[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 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 d6 5. 0-0 g4 6. Nd4 Bg7 7. Ne2 f3 8. gxf3 Nf6 9. Ng3 gxf3 10. Qxf3 Nc6 11. Nh5 Rg8 12. Kh1 Ne5 13. Nxf6+ Bxf6 14. Qxf6 Qxf6 15. Bb5+ c6 16. Rxf6 cxb5 17. Nc3 Ng4 18. Rf1 Bd7 19. Nd5 Rc8 20. c3 Bc6 21. d4 Bxd5 22. exd5 Rc4 23. Bf4 Kd7 24. Bd2 Rg7 25. h3 Ke8 26. hxg4 Rxg4 27. Rae1+ Kf8 28. Bh6+ Kg8 29. Re8# 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2003.08.08"]
[Round "7"]
[White "T Mannetje, Simone"]
[Black "Perizonius, Oscar"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "116"]
[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. c4 Nf6 4. Nc3 g6 5. d3 Nc6 6. Bg5 Bg7 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 0-0 10. Be2 Be6 11. 0-0 a6 12. Qe3 Rc8 13. b3 Qa5 14. Bf4 Ng4 15. Bxg4 Bxg4 16. Rac1 b5 17. Nd5 Rfe8 18. Nb6 Rc6 19. Nd5 bxc4 20. bxc4 Be6 21. Bh6 Bh8 22. Nf4 Bxc4 23. Rfd1 Bb5 24. Qf3 Rxc1 25. Rxc1 Bb2 26. Rb1 Qxa2 27. Rd1 Bg7 28. Bxg7 Kxg7 29. Qc3+ Kg8 30. Nh3 Qe2 31. Re1 Qd3 32. Qb2 Rc8 33. Nf4 Qc3 34. Qxc3 Rxc3 35. Nd5 Ra3 36. Nxe7+ Kg7 37. h3 a5 38. Nd5 a4 39. Nb4 Rb3 40. Na2 Bc4 41. Nc1 Rb1 42. Kh2 a3 43. Re3 Rxc1 44. Rxa3 d5 45. exd5 Bxd5 46. Rd3 Bc6 47. Rd8 Rc2 48. Rc8 Be4 49. Rxc2 Bxc2 50. g3 h5 51. g4 hxg4 52. hxg4 Kf6 53. Kg3 Ba4 54. Kf4 g5+ 55. Ke4 Bc6+ 56. Ke3 Ke5 57. f3 f6 58. Kf2 Kf4 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2003.08.07"]
[Round "6"]
[White "Perizonius, Oscar"]
[Black "Welling, Sophie"]
[Result "0-1"]
[ECO "B80"]
[PlyCount "60"]
[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. Bc4 e6 7. f3 Be7 8. Be3 0-0 9. 0-0 Bd7 10. Qe1 Nc6 11. Nxc6 Bxc6 12. Qg3 Re8 13. Rad1 Qc7 14. Bc5 Bxe4 15. Bd4 Qxc4 16. Nxe4 e5 17. Nxf6+ Bxf6 18. Bc3 Rac8 19. Kh1 d5 20. Rfe1 d4 21. Re4 Qxa2 22. Bd2 Qxb2 23. Bg5 Bxg5 24. Qxg5 Qxc2 25. Ree1 d3 26. h3 Rcd8 27. Rd2 Qc3 28. Rdd1 d2 29. Re2 h6 30. Qh4 Qc2 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2003.08.06"]
[Round "4"]
[White "Perizonius, Oscar"]
[Black "Van Eijk, Chantal"]
[Result "0-1"]
[ECO "C36"]
[PlyCount "67"]
[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 e5 2. f4 exf4 3. Nf3 d5 4. exd5 Nf6 5. Bc4 Nxd5 6. 0-0 Be7 7. Re1 Nc6 8. Bxd5 Qxd5 9. Nc3 Qd8 10. d3 0-0 11. Bxf4 Bc5+ 12. Kh1 Bg4 13. Ne4 Bb6 14. Rf1 Nd4 15. Ned2 Re8 16. h3 Bh5 17. Bh2 Qd5 18. Bg1 Ne2 19. Bh2 Re6 20. Ne4 Nd4 21. Nc3 Qd8 22. Ne4 Nxf3 23. gxf3 Qe7 24. Qd2 f5 25. Nf6+ Qxf6 26. Qg2 Rae8 27. Bg1 Re2 28. Qg3 c5 29. Bh2 Rxc2 30. Rae1 Rf8 31. Rg1 f4 32. Qxg7+ Qxg7 33. Rxg7+ Kxg7 34. Re7+ 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2003.08.06"]
[Round "5"]
[White "Van Dommelen, Walter"]
[Black "Perizonius, Oscar"]
[Result "0-1"]
[ECO "B20"]
[PlyCount "126"]
[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. c4 d6 3. d3 Nf6 4. Nf3 g6 5. Be3 Bg7 6. Be2 Ng4 7. Bc1 Nc6 8. a3 Bd7 9. h3 Nge5 10. Nc3 Nxf3+ 11. Bxf3 Nd4 12. 0-0 a6 13. Be3 b5 14. Re1 bxc4 15. dxc4 Rb8 16. Rb1 0-0 17. g3 Bxh3 18. g4 Qd7 19. Bxd4 cxd4 20. Nd5 d3 21. b3 d2 22. Re3 Bh6 23. Rd3 f5 24. Ne3 fxe4 25. Bxe4 Bxe3 26. Rxe3 Bxg4 27. Qxd2 Bf5 28. Qd5+ Be6 29. Qd3 Rf6 30. f3 Bf5 31. Bxf5 Rxf5 32. Rbe1 Rg5+ 33. Kf2 Re8 34. Qd4 e5 35. Qd5+ Qe6 36. Rd1 Rh5 37. Kg2 Kh8 38. Qxe6 Rxe6 39. Red3 Rg5+ 40. Kf2 h5 41. Rxd6 Rxd6 42. Rxd6 h4 43. Rd1 h3 44. Rh1 Rg2+ 45. Kf1 Rg3 46. Ke2 Kg7 47. Ke3 Kf6 48. Ke4 Ke6 49. b4 g5 50. b5 axb5 51. cxb5 g4 52. fxg4 Rxg4+ 53. Kf3 Ra4 54. Ra1 Kd7 55. b6 Kc6 56. Rb1 Rxa3+ 57. Kf2 Kb7 58. Kg1 e4 59. Kh2 Rf3 60. Kg1 e3 61. Rb2 Rf4 62. Kh2 Rf2+ 63. Rxf2 exf2 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2003.08.05"]
[Round "2"]
[White "Perizonius, Oscar"]
[Black "Kuipers, Stefan"]
[Result "0-1"]
[ECO "B01"]
[PlyCount "38"]
[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 d5 2. exd5 Nf6 3. d4 Nxd5 4. Bd3 Nc6 5. Nf3 Bg4 6. Be3 e5 7. Bb5 e4 8. h3 exf3 9. hxg4 fxg2 10. Rg1 Nxe3 11. fxe3 Qh4+ 12. Kd2 Qf2+ 13. Be2 0-0-0 14. Nc3 Nxd4 15. Kc1 Nxe2+ 16. Qxe2 Qxg1+ 17. Nd1 Qxd1+ 18. Qxd1 Rxd1+ 19. Kxd1 g1Q+ 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2003.08.05"]
[Round "3"]
[White "Van Nie, Jonathan"]
[Black "Perizonius, Oscar"]
[Result "0-1"]
[ECO "B76"]
[PlyCount "106"]
[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 g6 6. f3 Bg7 7. Be3 0-0 8. Bb5 a6 9. Ba4 b5 10. Bb3 Bd7 11. Qd2 Nc6 12. Nxc6 Bxc6 13. 0-0-0 a5 14. h4 b4 15. Nd5 Nxd5 16. Bxd5 Bxd5 17. exd5 Rc8 18. Bh6 Bxh6 19. Qxh6 Qc7 20. Rd2 Qc4 21. b3 Qc3 22. Kb1 Rc5 23. h5 Rfc8 24. hxg6 hxg6 25. Qh7+ Kf8 26. Qh8+ Qxh8 27. Rxh8+ Kg7 28. Rxc8 Rxc8 29. Re2 Kf6 30. f4 Rc5 31. Rd2 Kf5 32. g3 Rc3 33. Re2 Rxg3 34. Rxe7 Kxf4 35. Rxf7+ Ke5 36. Ra7 Rg1+ 37. Kb2 g5 38. Rxa5 g4 39. Ra8 g3 40. Rg8 g2 41. c4 bxc3+ 42. Kc2 Kxd5 43. a4 Kc5 44. a5 Kb5 45. Rg5+ Ka6 46. b4 d5 47. Rg6+ Kb5 48. a6 Ra1 49. Rxg2 Ra2+ 50. Kxc3 Rxg2 51. a7 Ra2 52. Kd4 Rxa7 53. Kxd5 Kxb4 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2003.08.04"]
[Round "1"]
[White "De Bie, Berdy"]
[Black "Perizonius, Oscar"]
[Result "1/2-1/2"]
[ECO "B77"]
[PlyCount "66"]
[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 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. 0-0-0 Nxd4 10. Bxd4 a6 11. Bc4 Qc7 12. Bb3 b5 13. Nd5 Nxd5 14. Bxd5 Bxd4 15. Bxa8 Be6 16. Bd5 Bxd5 17. exd5 Bf6 18. g4 Qc4 19. b3 Qc5 20. c3 Bxc3 21. Qc2 Rc8 22. Kb1 b4 23. Rd3 Qb5 24. Rhd1 Rc5 25. Qf2 Be5 26. f4 Bf6 27. g5 Bc3 28. Qe3 Qd7 29. Qh3 Qb7 30. f5 Be5 31. fxg6 hxg6 32. Qg2 Qc8 33. Qf2 Rc3 1/2-1/2

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "2002.08.10"]
[Round "13"]
[White "Janssen, Timo"]
[Black "Perizonius, Oscar"]
[Result "1/2-1/2"]
[ECO "E61"]
[PlyCount "54"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[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. Nf3 Bg7 4. Nc3 0-0 5. Bf4 d6 6. e3 c5 7. Be2 Bf5 8. 0-0 Na6 9. Qb3 b6 10. Rfd1 Nb4 11. Rac1 Nh5 12. Bg5 h6 13. Bh4 g5 14. Bg3 Bg6 15. a3 Nc6 16. Qa4 Qc7 17. b4 cxb4 18. axb4 a5 19. bxa5 Rxa5 20. Qb3 Rb8 21. Ra1 Nxg3 22. hxg3 Qa7 23. Qb2 Ra8 24. Nb5 Qb7 25. Rxa5 Rxa5 26. Ra1 Rxa1+ 27. Qxa1 Na5 1/2-1/2

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "2002.08.09"]
[Round "10"]
[White "Perizonius, Oscar"]
[Black "Hortensius, Lisa"]
[Result "0-1"]
[ECO "C31"]
[PlyCount "105"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. exd5 Qxd5 4. Nc3 Qd6 5. Nf3 exf4 6. Bc4 Be7 7. Bb3 Nf6 8. 0-0 0-0 9. d3 Bg4 10. Qd2 Nc6 11. Qxf4 Qxf4 12. Bxf4 Bd6 13. Bxd6 cxd6 14. Nd5 Nxd5 15. Bxd5 Be6 16. Be4 d5 17. Bxh7+ Kxh7 18. Rae1 Bg4 19. Re3 Bxf3 20. Rfxf3 Nd4 21. Rh3+ Kg8 22. Rh5 Nxc2 23. Reh3 f6 24. R5h4 Rfe8 25. Kf2 d4 26. a3 Ne3 27. Rxd4 Nd1+ 28. Kf1 Nxb2 29. Rd7 Rad8 30. Rxd8 Rxd8 31. Ke2 Kf7 32. Kd2 Nc4+ 33. Kc3 Nxa3 34. Re3 Nb5+ 35. Kc4 a6 36. h3 Nd6+ 37. Kc3 a5 38. g4 b5 39. h4 f5 40. gxf5 Rc8+ 41. Kb3 Nxf5 42. Re5 Nxh4 43. Rxb5 Rd8 44. Kc3 Ra8 45. Kb3 a4+ 46. Ka3 Kf6 47. Rb4 Nf5 48. Rf4 g5 49. Re4 g4 50. d4 Rd8 51. d5 Rxd5 52. Rxa4 Rd3+ 53. Kb2 0-1

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "2002.08.09"]
[Round "12"]
[White "Perizonius, Oscar"]
[Black "Kuyt, Richard"]
[Result "1-0"]
[ECO "C30"]
[PlyCount "73"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. f4 d6 3. Nf3 Nc6 4. Bb5 Bg4 5. h3 Bd7 6. 0-0 exf4 7. d3 Qf6 8. Nc3 Nge7 9. Nh2 Ne5 10. Bxd7+ Kxd7 11. Bxf4 Qe6 12. d4 N5g6 13. d5 Qf6 14. Be3 Qe5 15. Ng4 Qg3 16. Rf3 Qh4 17. Bf2 Qg5 18. Be3 Qh4 19. Qf1 f6 20. g3 Qh5 21. Rxf6 Qxg4 22. hxg4 gxf6 23. Qb5+ Kd8 24. Qxb7 Rc8 25. Nb5 Ke8 26. Nxc7+ Kf7 27. c3 Ne5 28. Nb5 Rd8 29. Qc7 Rd7 30. Nxd6+ Kg6 31. Qb7 Bg7 32. Qb4 Nxg4 33. Bf4 Bf8 34. Qd4 Bg7 35. Nf5 Nxf5 36. exf5+ Kxf5 37. Qd3# 1-0

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "2002.08.09"]
[Round "11"]
[White "Van Bokhorst, Rutger"]
[Black "Perizonius, Oscar"]
[Result "0-1"]
[ECO "B21"]
[PlyCount "34"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qd1 d6 5. Nc3 Nf6 6. Bg5 g6 7. Qd2 Bg7 8. Bb5 0-0 9. Nf3 a6 10. Bxc6 bxc6 11. 0-0-0 Rb8 12. e5 Qb6 13. b3 dxe5 14. Nxe5 Qc5 15. Nd3 Qa3+ 16. Nb2 Ne4 17. Qf4 Bxc3 0-1

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "2002.08.08"]
[Round "8"]
[White "Fitski, Wouter"]
[Black "Perizonius, Oscar"]
[Result "1/2-1/2"]
[ECO "B22"]
[PlyCount "45"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. c3 d6 3. d4 cxd4 4. cxd4 Nf6 5. Nc3 g6 6. Nf3 Bg7 7. Bf4 Nh5 8. Bg5 0-0 9. Qd2 Nc6 10. Bb5 Qb6 11. Be3 Na5 12. 0-0 Bg4 13. Ne1 Rac8 14. Ba4 Nc4 15. Nd5 Nxd2 16. Nxb6 Nxf1 17. Nxc8 Nxe3 18. Nxe7+ Kh8 19. fxe3 f5 20. exf5 Bxf5 21. Nxf5 Rxf5 22. Nf3 Nf6 23. Bb3 1/2-1/2

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "2002.08.08"]
[Round "9"]
[White "Muhren, Yvette"]
[Black "Perizonius, Oscar"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "88"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 d6 4. cxd4 Nf6 5. Nc3 g6 6. Nf3 Bg7 7. Bc4 0-0 8. 0-0 Bd7 9. Bg5 Nc6 10. Qd2 Rc8 11. Bb3 Bg4 12. Nh4 Na5 13. Bc2 Nc4 14. Qc1 Qb6 15. h3 Bd7 16. b3 Na5 17. Qd2 Qc6 18. Na4 Qxc2 19. Qxa5 Qxe4 20. Rfe1 Qxd4 21. Rad1 Rc5 22. Rxd4 Rxa5 23. Bd2 Rd5 24. Rxd5 Nxd5 25. Nf3 b5 26. Nc3 Nxc3 27. Rxe7 Be6 28. Rxa7 Ne4 29. Bb4 Nc5 30. Rc7 Rc8 31. Re7 Nd7 32. Bxd6 Bf8 33. Rxe6 fxe6 34. Bf4 Bg7 35. Ng5 e5 36. Bg3 Rc1+ 37. Kh2 Ra1 38. a4 bxa4 39. bxa4 Rxa4 40. Ne6 Ra6 41. Ng5 Nc5 42. f3 h6 43. Ne4 Nxe4 44. fxe4 Ra4 0-1

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "2002.08.07"]
[Round "6"]
[White "Benninga, Jussi"]
[Black "Perizonius, Oscar"]
[Result "0-1"]
[ECO "B72"]
[PlyCount "85"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Qd2 Ng4 8. Bf4 e5 9. h3 exd4 10. Nb5 Ne5 11. Qb4 0-0 12. Nxd6 Nbc6 13. Qa3 Qa5+ 14. Qxa5 Nxa5 15. 0-0-0 Nac6 16. Nb5 Be6 17. a4 Rfd8 18. Bg5 Rd7 19. f4 f6 20. Bh4 Nf7 21. Bf2 Rad8 22. Kb1 a6 23. Na3 Rc8 24. Rd2 Nb4 25. Bxd4 Rcd8 26. c3 Nc6 27. Nc2 Bb3 28. Be2 Bxc2+ 29. Kxc2 Nxd4+ 30. cxd4 Rxd4 31. Rhd1 Rc8+ 32. Kb1 Rxe4 33. g3 Rce8 34. a5 Rxe2 35. Rd7 R2e7 36. R7d2 f5 37. g4 fxg4 38. hxg4 Re1 39. Rxe1 Rxe1+ 40. Ka2 Re7 41. Rd3 Rc7 42. Rd2 Rc5 43. Rd7 0-1

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "2002.08.07"]
[Round "7"]
[White "Perizonius, Oscar"]
[Black "Jacobs, Sheila"]
[Result "1/2-1/2"]
[ECO "C33"]
[PlyCount "101"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. Nc3 Nc6 5. Bc4 Bb4 6. 0-0 0-0 7. d3 d6 8. a3 Ba5 9. Bxf4 Bg4 10. h3 Bh5 11. Qd2 Bb6+ 12. Be3 Bxf3 13. Rxf3 Ne5 14. Rff1 Nxc4 15. dxc4 Re8 16. Bxb6 axb6 17. Qd3 Ra5 18. Rf4 Rae5 19. Raf1 R8e6 20. Kh1 g5 21. R4f3 c6 22. Rf5 Rxf5 23. Rxf5 h6 24. e5 Nh7 25. Rxf7 Kxf7 26. Qxh7+ Ke8 27. Qxb7 dxe5 28. Qg7 Qe7 29. Qg8+ Kd7 30. Ne4 Qd8 31. Qf7+ Qe7 32. Qg8 c5 33. c3 Qd8 34. Qf7+ Qe7 35. Qg8 Rc6 36. Qd5+ Kc7 37. b4 cxb4 38. cxb4 Qe6 39. Nc3 Qxd5 40. Nxd5+ Kd6 41. Kg1 Rxc4 42. Nxb6 Rc3 43. a4 Kc6 44. a5 Kb7 45. b5 Rb3 46. Nc4 Rb4 47. Nxe5 Rxb5 48. Nf7 Rxa5 49. Nxh6 Kc6 50. Kh2 Kd6 51. Ng4 1/2-1/2

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "2002.08.07"]
[Round "5"]
[White "Perizonius, Oscar"]
[Black "Pluut, Albert"]
[Result "1-0"]
[ECO "C36"]
[PlyCount "40"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 d5 4. exd5 Qxd5 5. Nc3 Qe6+ 6. Be2 Nf6 7. 0-0 Bb4 8. Re1 0-0 9. a3 Bc5+ 10. d4 Bb6 11. Bd3 Qd6 12. Na4 Bxd4+ 13. Kh1 Nc6 14. c3 Bc5 15. Nxc5 Qxc5 16. Bd2 Bg4 17. h3 Bxf3 18. Qxf3 Nd8 19. Bxf4 Qb6 20. Bh6 Nd7 1-0

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "2002.08.06"]
[Round "3"]
[White "Perizonius, Oscar"]
[Black "Van Praet, Reinald"]
[Result "1-0"]
[ECO "B54"]
[PlyCount "51"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[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 g6 5. Bc4 Bg7 6. Nf3 e6 7. Nc3 Nc6 8. Nb5 Bf8 9. Bg5 f6 10. Bf4 e5 11. Be3 a6 12. Nc3 Bd7 13. Qd5 Qe7 14. a3 Rd8 15. h3 Qg7 16. Bb6 Nge7 17. Qd3 Rc8 18. Nd5 Nxd5 19. Qxd5 Ne7 20. Qd3 Bc6 21. 0-0-0 f5 22. Qxd6 Ng8 23. Qe6+ Ne7 24. Nxe5 Qg8 25. Qf7+ Qxf7 26. Bxf7# 1-0

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "2002.08.06"]
[Round "2"]
[White "Schippers, Philippe"]
[Black "Perizonius, Oscar"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "56"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[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. Nc3 Nf6 4. Bc4 Nc6 5. d3 g6 6. Ng5 Ne5 7. Bb3 e6 8. Bf4 Nc6 9. 0-0 Nh5 10. Be3 Bg7 11. Qf3 0-0 12. Rae1 Ne5 13. Qe2 a6 14. Nf3 Qf6 15. Nxe5 Qxe5 16. Qg4 d5 17. Bxc5 Re8 18. Ba4 b5 19. Bb3 Qc7 20. Qe2 Qxc5 21. Qd2 Bb7 22. h3 dxe4 23. Nxe4 Bxe4 24. Rxe4 Rad8 25. c3 Ng3 26. Qe3 Qxe3 27. Rxe3 Nxf1 28. Kxf1 Rd7 0-1

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "2002.08.06"]
[Round "4"]
[White "Van Eijk, Chantal"]
[Black "Perizonius, Oscar"]
[Result "1-0"]
[ECO "B72"]
[PlyCount "88"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 0-0 8. Qd2 Ng4 9. Bxg4 Bxg4 10. h3 Bd7 11. Bh6 Nc6 12. Bxg7 Kxg7 13. Nf3 Be6 14. 0-0 Qb6 15. b3 Rac8 16. Rad1 Nb4 17. Na4 Qa5 18. a3 Rxc2 19. Qd4+ f6 20. axb4 Qc7 21. Ng5 Bxb3 22. Rb1 Bg8 23. Nf3 Rc8 24. Nb2 Qc6 25. Ne1 e5 26. Qd1 Rc3 27. b5 Qxe4 28. Nf3 Bb3 29. Qxd6 Rf8 30. Rfe1 Qf5 31. Qb4 Rxf3 32. gxf3 Bf7 33. Qg4 Qc2 34. Rec1 Qe2 35. Rc7 h5 36. Qe4 Qxb5 37. Rxb7 Qa6 38. Nd3 Rd8 39. Nc5 Qd6 40. Qe3 Rc8 41. Ne4 Qe6 42. Qxa7 Rf8 43. Rd1 Qc4 44. Nd6 Kh6 1-0

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "2002.08.05"]
[Round "1"]
[White "Perizonius, Oscar"]
[Black "Burg, Twan"]
[Result "0-1"]
[ECO "B56"]
[BlackElo "2050"]
[PlyCount "80"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Bb5 Bd7 7. Be3 e6 8. Qd2 Be7 9. 0-0-0 a6 10. Nxc6 Bxc6 11. Bxc6+ bxc6 12. Qe2 Qa5 13. Qc4 c5 14. f3 0-0 15. Qa4 Qb6 16. g4 Rfb8 17. Qb3 Qc7 18. Qc4 Rb4 19. Qd3 Nd7 20. a3 Rb7 21. Bf4 Rb6 22. Na4 Rc6 23. h4 Qa5 24. Nc3 Rb8 25. Qc4 Nb6 26. Qb3 Nd7 27. Qc4 Qb6 28. Na4 Qb5 29. Qb3 Qxb3 30. cxb3 Rxb3 31. Nc3 Bf6 32. Na4 e5 33. g5 Be7 34. Bd2 Rxf3 35. Nc3 Nb6 36. b3 c4 37. b4 f5 38. a4 fxe4 39. a5 Nc8 40. Be3 Rxe3 0-1

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "2002.05.10"]
[Round "5"]
[White "Perizonius, Oscar"]
[Black "Zijlstra, Patrick"]
[Result "1-0"]
[ECO "B13"]
[PlyCount "160"]
[EventDate "2002.04.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nf3 c6 4. Nc3 cxd5 5. d4 Bg4 6. h3 Bh5 7. Bb5+ Nbd7 8. 0-0 a6 9. Ba4 b5 10. Bb3 e6 11. Qd3 Bg6 12. Qe2 Be7 13. Ne5 Nxe5 14. dxe5 Nd7 15. f4 0-0 16. a3 Rc8 17. Be3 f6 18. exf6 Bxf6 19. Qd2 Nb6 20. a4 bxa4 21. Nxa4 Nxa4 22. Bxa4 Bxb2 23. Rab1 Bc3 24. Qe2 Rc4 25. Bb3 Re4 26. Qf2 d4 27. Bd2 Bxd2 28. Qxd2 Qd6 29. f5 Bxf5 30. Qd3 Re3 31. Qd2 Rxb3 32. Rxb3 e5 33. Rbf3 g6 34. g4 e4 35. Rf4 e3 36. Qe2 g5 37. Rxf5 Rxf5 38. Rxf5 Qg3+ 39. Qg2 Qe1+ 40. Rf1 Qb4 41. Qd5+ Kg7 42. Qf7+ Kh8 43. Qf8+ Qxf8 44. Rxf8+ Kg7 45. Rd8 Kf6 46. Rxd4 Ke5 47. Ra4 a5 48. Kg2 Kd5 49. Kf3 Kc5 50. c4 Kd4 51. Ke2 h6 52. c5+ Kxc5 53. Kxe3 Kb5 54. Re4 a4 55. Kd3 Ka5 56. Kc3 Kb5 57. Kb2 Ka5 58. Ka3 Kb5 59. Rxa4 Kc5 60. Ra6 Kd5 61. Rxh6 Ke5 62. h4 gxh4 63. Rxh4 Kf4 64. Rh5 Kxg4 65. Ra5 Kf4 66. Kb4 Ke3 67. Kc4 Ke4 68. Rb5 Ke3 69. Kd5 Kf3 70. Rb4 Ke3 71. Ra4 Kf3 72. Ke5 Kg3 73. Kf5 Kh3 74. Kg5 Kg3 75. Ra3+ Kf2 76. Kg4 Ke2 77. Kf4 Kd2 78. Ke4 Kc2 79. Kd4 Kb2 80. Rh3 Kc2 1-0

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "2002.05.09"]
[Round "1"]
[White "Perizonius, Oscar"]
[Black "Roorda, Thijs"]
[Result "0-1"]
[ECO "C01"]
[PlyCount "68"]
[EventDate "2002.04.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. Nc3 Nf6 6. Nf3 c6 7. 0-0 0-0 8. Bg5 h6 9. Bh4 Bg4 10. Re1 Nbd7 11. h3 Bh5 12. Bf5 Be7 13. Qd3 Re8 14. Ne5 Nxe5 15. Rxe5 Qd6 16. Bxf6 Qxf6 17. Bh7+ Kh8 18. Rxh5 g6 19. Bxg6 fxg6 20. Re5 Bd6 21. Ree1 Kg7 22. Re3 Rxe3 23. Qxe3 Rd8 24. Re1 Rd7 25. Qd2 Rf7 26. Re3 Bf4 27. Ne2 Bxe3 28. Qxe3 Re7 29. Qd3 Qf5 30. Qd2 Qe4 31. Kf1 Rf7 32. a3 Qf5 33. Ng3 Qf4 34. Qe1 Qxg3 0-1

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "2002.??.??"]
[Round "6"]
[White "Evengroen, Henk Jan"]
[Black "Perizonius, Oscar"]
[Result "1-0"]
[ECO "B23"]
[PlyCount "41"]
[EventDate "2002.04.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. e4 c5 2. f4 d6 3. Nc3 Nf6 4. Nf3 g6 5. Bc4 a6 6. 0-0 b5 7. Be2 Bg7 8. d3 0-0 9. Be3 Ng4 10. Bd2 Nc6 11. h3 Nf6 12. Be3 Nh5 13. Qe1 Nd4 14. Rc1 Nxe2+ 15. Nxe2 Bxb2 16. Rb1 Bg7 17. Qh4 Be6 18. a3 Bd7 19. g4 Nf6 20. Ng5 Ne8 21. Qxh7# 1-0

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "2002.??.??"]
[Round "2"]
[White "Kleijn, Christov"]
[Black "Perizonius, Oscar"]
[Result "1-0"]
[ECO "B51"]
[PlyCount "91"]
[EventDate "2002.04.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Nxd4 a6 6. Ba4 b5 7. Bb3 Ngf6 8. 0-0 g6 9. Nc3 Bg7 10. Bg5 0-0 11. Re1 Nc5 12. Bxf6 Bxf6 13. Bd5 Bb7 14. Bxb7 Nxb7 15. Nd5 Bg7 16. c3 Nc5 17. Nc6 Qd7 18. Ncxe7+ Kh8 19. Qc2 Rfe8 20. Nxg6+ fxg6 21. Nb6 Qe7 22. Nxa8 Rxa8 23. f3 Rc8 24. Rad1 Qa7 25. Kh1 Qe7 26. Qd2 Be5 27. f4 Bg7 28. Qxd6 Qf7 29. Rd5 Bf8 30. Qb6 Nxe4 31. Qd4+ Nf6 32. Rd7 Qxd7 33. Qxf6+ Bg7 34. Qe7 Qxe7 35. Rxe7 Rd8 36. h3 Rf8 37. g3 Rd8 38. Ra7 b4 39. cxb4 Rd1+ 40. Kg2 Rd2+ 41. Kf3 Rd3+ 42. Kg2 Rd2+ 43. Kf1 Rf2+ 44. Ke1 Kg8 45. Ra8+ Kf7 46. Kxf2 1-0

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "2002.??.??"]
[Round "7"]
[White "Perizonius, Oscar"]
[Black "Bollen, Guus"]
[Result "1/2-1/2"]
[ECO "B54"]
[PlyCount "119"]
[EventDate "2002.04.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 e5 6. Nf3 Bg4 7. Be3 Nf6 8. h3 Be6 9. Bb5 Be7 10. Nd5 Nxe4 11. Nxe7 Qxe7 12. 0-0 0-0 13. Bd3 f5 14. Nd2 Nc5 15. Nb3 Nxb3 16. cxb3 Kh8 17. Bc4 Rad8 18. Bxe6 Qxe6 19. Rc1 a6 20. Re1 Qg6 21. Bb6 Rc8 22. a3 f4 23. f3 Ne7 24. Rxc8 Rxc8 25. Re4 h6 26. Bf2 Qe6 27. Qd2 Nf5 28. Qxf4 exf4 29. Rxe6 Rc2 30. Re8+ Kh7 31. Rb8 Rxb2 32. Rxb7 Ne3 33. Bxe3 fxe3 34. Kf1 d5 35. Rd7 Rxb3 36. Rxd5 Rxa3 37. Re5 a5 38. Ke2 a4 39. Kd1 Ra1+ 40. Kc2 a3 41. Rxe3 Ra2+ 42. Kb1 Rxg2 43. f4 a2+ 44. Ka1 Rf2 45. Ra3 Rxf4 46. Kxa2 Kg6 47. Kb2 Kh5 48. Kc1 Kh4 49. Kd1 Rf1+ 50. Ke2 Rh1 51. Ra7 g5 52. Ra6 Rxh3 53. Rxh6+ Kg3 54. Rg6 g4 55. Kf1 Rh1+ 56. Ke2 Rh4 57. Kf1 Kh2 58. Kf2 g3+ 59. Rxg3 Rf4+ 60. Rf3 1/2-1/2

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "2002.??.??"]
[Round "9"]
[White "Perizonius, Oscar"]
[Black "Kuling, Lody"]
[Result "1-0"]
[ECO "C30"]
[PlyCount "76"]
[EventDate "2002.04.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 Nc6 5. d4 exd4 6. Nxd4 Nxd4 7. cxd4 Bb6 8. Bc4 Be6 9. Bxe6 fxe6 10. 0-0 Qe7 11. Nc3 0-0-0 12. Kh1 Nf6 13. Qd3 Ng4 14. h3 h5 15. hxg4 Qh4+ 16. Qh3 hxg4 17. Qxh4 Rxh4+ 18. Kg1 Bxd4+ 19. Rf2 g3 20. Nd1 gxf2+ 21. Nxf2 Rxf4 22. Bxf4 Bxf2+ 23. Kxf2 Rf8 24. Ke3 e5 25. Bg3 Kd7 26. Ke2 Ke6 27. Rc1 c6 28. Rf1 Rf6 29. Rxf6+ gxf6 30. Bf2 a6 31. g4 d5 32. Kd3 d4 33. b4 b5 34. Bxd4 Kd6 35. Bc5+ Ke6 36. Ke3 Kf7 37. Kf3 Kg6 38. Kg3 Kg5 1-0

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "2002.??.??"]
[Round "4"]
[White "Perizonius, Oscar"]
[Black "Pan, Chen Xie"]
[Result "1-0"]
[ECO "C31"]
[PlyCount "41"]
[EventDate "2002.04.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. exd5 Qxd5 4. Nc3 Qa5 5. Nf3 exf4 6. d4 Bf5 7. Bd3 Bxd3 8. Qxd3 Bb4 9. 0-0 Bxc3 10. bxc3 Nd7 11. Bxf4 0-0-0 12. Qc4 Ngf6 13. Rab1 c6 14. Rb4 Qf5 15. Ne5 Nxe5 16. Bxe5 Qxc2 17. Rfb1 Rd7 18. Qxc6+ Kd8 19. Bxf6+ gxf6 20. Qxf6+ Kc7 21. Rxb7+ 1-0

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "2002.??.??"]
[Round "8"]
[White "Snijders, Jasper"]
[Black "Perizonius, Oscar"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "66"]
[EventDate "2002.04.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Qc2 g6 5. d4 cxd4 6. cxd4 Bg7 7. Nc3 0-0 8. h3 Nc6 9. Be3 Bd7 10. a3 a6 11. Bc4 Rc8 12. Ba2 Na7 13. Qd2 Nb5 14. Rc1 Nxc3 15. Rxc3 Nxe4 16. Rxc8 Nxd2 17. Rxd8 Nxf3+ 18. gxf3 Rxd8 19. 0-0 Bxh3 20. Rc1 Rc8 21. Rxc8+ Bxc8 22. Bd5 e6 23. Bb3 Bd7 24. Kg2 d5 25. f4 Kf8 26. Kf3 Ke7 27. Ke2 Kf6 28. Kf3 Bb5 29. Bc2 Ke7 30. Bd1 Kd6 31. Be2 Kc6 32. Bxb5+ Kxb5 33. b3 a5 0-1

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "2002.??.??"]
[Round "3"]
[White "Tieleman, Orson"]
[Black "Perizonius, Oscar"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "62"]
[EventDate "2002.04.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bc4 Nc6 4. Nc3 Nf6 5. b3 g6 6. Bb2 Bg7 7. Nd5 Nxd5 8. Bxg7 Rg8 9. Bb2 Nb6 10. Bb5 Bd7 11. Bxc6 Bxc6 12. d3 Qd7 13. Ng5 h6 14. Nf3 0-0-0 15. 0-0 g5 16. e5 h5 17. c4 h4 18. Qd2 h3 19. Ne1 hxg2 20. Nxg2 Bxg2 21. Kxg2 Qg4+ 22. Kh1 Rh8 23. exd6 f6 24. f3 Qh5 25. dxe7 Rde8 26. Bxf6 Rh7 27. Rf2 Nd7 28. Bxg5 Ne5 29. Rg1 Nxf3 30. Qe3 Nxg1 31. Bf4 Rexe7 0-1

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "2001.08.11"]
[Round "13"]
[White "Van der Tuijn, Ies"]
[Black "Perizonius, Oscar"]
[Result "0-1"]
[ECO "C30"]
[PlyCount "48"]
[EventDate "2001.08.06"]
[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 e5 2. f4 d6 3. Nf3 Nc6 4. Bb5 a6 5. Ba4 Nf6 6. Nc3 Be7 7. fxe5 dxe5 8. Nxe5 Qd6 9. d4 0-0 10. Nxc6 bxc6 11. e5 Qe6 12. Bb3 Nd5 13. 0-0 Qd7 14. Qf3 Nb6 15. Qg3 Qxd4+ 16. Kh1 Bh4 17. Qe3 Qd8 18. g3 Be7 19. Rd1 Qe8 20. Qf3 Bb7 21. Rf1 Rb8 22. Kg1 c5 23. Qf2 Qc6 24. a4 Qh1# 0-1

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "2001.08.10"]
[Round "11"]
[White "Ijsselhof, Rinske"]
[Black "Perizonius, Oscar"]
[Result "1/2-1/2"]
[ECO "C50"]
[PlyCount "42"]
[EventDate "2001.08.06"]
[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 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 5. d3 0-0 6. Bg5 h6 7. Bh4 d6 8. Nd5 g5 9. Nxg5 Ne8 10. Ne6 Qxh4 11. g3 Qh3 12. Nxf8 Kxf8 13. c3 Qg2 14. Rf1 Qxh2 15. Qf3 Be6 16. Rh1 Bg4 17. Rxh2 Bxf3 18. Rxh6 Kg7 19. Rh3 Bg4 20. Rh4 Bf3 21. Rh3 Bg4 1/2-1/2

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "2001.08.09"]
[Round "9"]
[White "Einarsen, Rune"]
[Black "Perizonius, Oscar"]
[Result "1/2-1/2"]
[ECO "C45"]
[PlyCount "53"]
[EventDate "2001.08.06"]
[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 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 d5 6. Nxc6 bxc6 7. e5 Qe7 8. Qe2 Ng4 9. f4 Nh6 10. Be3 Bg4 11. Qd3 Qb4 12. Rb1 Bf5 13. Qd2 d4 14. Bxd4 Bxc2 15. Rc1 Bf5 16. Be2 Bc5 17. Bxc5 Qxc5 18. Na4 Qd5 19. Qxd5 cxd5 20. Bb5+ Bd7 21. Bxd7+ Kxd7 22. 0-0 Rhc8 23. Rfd1 c6 24. Nc5+ Ke7 25. a3 Ng4 26. Re1 Rab8 27. b4 1/2-1/2

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "2001.08.08"]
[Round "5"]
[White "Perizonius, Oscar"]
[Black "Hortensius, Lisa"]
[Result "1-0"]
[ECO "C48"]
[PlyCount "61"]
[EventDate "2001.08.06"]
[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 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. Nc3 Nf6 5. d3 d6 6. d4 exd4 7. Bxc6+ bxc6 8. Nxd4 Bd7 9. Nf3 Bb4 10. Bd2 Bg4 11. a3 Bc5 12. h3 Be6 13. Bg5 h6 14. Bh4 d5 15. Bxf6 Qxf6 16. exd5 cxd5 17. Nxd5 Bxd5 18. Qxd5 Bb6 19. Qxa8+ Qd8 20. Qxd8+ Kxd8 21. 0-0-0+ Ke7 22. Rhe1+ Kf6 23. Ne5 h5 24. Nd7+ Kg6 25. Nxb6 axb6 26. Rd7 Rc8 27. Ree7 h4 28. Rxc7 Rf8 29. Rc6+ Kf5 30. Rxb6 Kf4 31. Rbb7 1-0

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "2001.08.07"]
[Round "2"]
[White "Perizonius, Oscar"]
[Black "Gorter, Yme"]
[Result "0-1"]
[ECO "C71"]
[PlyCount "66"]
[EventDate "2001.08.06"]
[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 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. d4 b5 6. Bb3 Nxd4 7. Nxd4 exd4 8. Qxd4 c5 9. Qd5 Be6 10. Qc6+ Bd7 11. Bxf7+ Kxf7 12. Qd5+ Be6 13. Qh5+ g6 14. Qf3+ Qf6 15. Qg3 Bh6 16. Nc3 Bxc1 17. Rxc1 Rd8 18. Rd1 b4 19. Nd5 Bxd5 20. exd5 Qe5+ 21. Qe3 Qxe3+ 22. fxe3 Nh6 23. 0-0+ Kg7 24. Rf2 Ng4 25. Rf3 Ne5 26. Rf4 Rhf8 27. Rxf8 Rxf8 28. Rc1 Nc4 29. b3 Nxe3 30. h3 Nxd5 31. Rd1 Rf5 32. Kh2 Kf6 33. Re1 Rf2 0-1

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "2001.08.06"]
[Round "6"]
[White "Perizonius, Oscar"]
[Black "Visscher, Daan"]
[Result "0-1"]
[ECO "C62"]
[PlyCount "32"]
[EventDate "2001.08.06"]
[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 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 exd4 5. Nxd4 Bd7 6. Nxc6 Bxc6 7. Bxc6+ bxc6 8. Nc3 Nf6 9. Bg5 Be7 10. Qe2 0-0 11. 0-0-0 Re8 12. e5 Nd5 13. Rxd5 Bxg5+ 14. Kb1 cxd5 15. Nxd5 Rxe5 16. Qd2 Bxd2 0-1

[Event "Hengelo U12 op"]
[Site "Hengelo"]
[Date "2001.08.06"]
[Round "1"]
[White "Van der Tuijn, Eric"]
[Black "Perizonius, Oscar"]
[Result "1/2-1/2"]
[ECO "C46"]
[PlyCount "86"]
[EventDate "2001.08.06"]
[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 e5 2. Nf3 Nc6 3. Nc3 Bb4 4. d3 d5 5. exd5 Qxd5 6. Bd2 Bxc3 7. Bxc3 Nf6 8. Qe2 Bg4 9. h3 Bxf3 10. Qxf3 Qxf3 11. gxf3 Nd5 12. 0-0-0 Nxc3 13. bxc3 0-0 14. d4 exd4 15. cxd4 Rad8 16. d5 Nb4 17. Bc4 b5 18. Bb3 a5 19. a3 a4 20. axb4 axb3 21. cxb3 h6 22. Rd4 Rd6 23. Rhd1 Rfd8 24. Kd2 Rxd5 25. Rxd5 Rxd5+ 26. Kc2 Rxd1 27. Kxd1 Kf8 28. Kd2 Ke7 29. Kd3 Kd7 30. Kd4 Kd6 31. f4 g6 32. f3 f6 33. h4 f5 34. Ke3 Kd5 35. Kd3 c6 36. Kc3 c5 37. bxc5 Kxc5 38. b4+ Kc6 39. Kb3 Kd6 40. Kc3 Kd5 41. Kd3 Kd6 42. Kd4 h5 43. Kd3 Kd5 1/2-1/2

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "2000.08.11"]
[Round "11"]
[White "Perizonius, Oscar"]
[Black "Lim, Dustin"]
[Result "1-0"]
[ECO "B00"]
[PlyCount "85"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 Nc6 2. d4 Nf6 3. Nc3 d6 4. Nf3 Bg4 5. Bb5 a6 6. Bc4 e5 7. d5 Nd4 8. h3 Bxf3 9. gxf3 Qd7 10. f4 exf4 11. Qxd4 c5 12. Qd1 Qe7 13. f3 g6 14. Bxf4 b5 15. Bf1 b4 16. Na4 Nxe4 17. Qe2 Ng3 18. Qxe7+ Bxe7 19. Bxg3 0-0 20. Nb6 Rad8 21. 0-0-0 Bg5+ 22. f4 Bf6 23. Bd3 Rfe8 24. f5 gxf5 25. Bxf5 Be5 26. Bd7 Re7 27. Bh4 f6 28. Be6+ Kg7 29. Rhg1+ Kh8 30. Rg2 h5 31. Rdg1 Ree8 32. Bf7 Rf8 33. Bxh5 a5 34. Nc4 a4 35. b3 a3 36. Nxe5 dxe5 37. Rf1 Rxd5 38. Rxf6 Rxf6 39. Bxf6+ Kh7 40. Bf3 Rd7 41. Be4+ Kh6 42. Rg4 Kh5 43. Rh4# 1-0

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "2000.08.10"]
[Round "8"]
[White "Hooghwerff, Ruben"]
[Black "Perizonius, Oscar"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "62"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "13"]
[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 Bc5 4. Nc3 d6 5. h3 Nf6 6. d3 0-0 7. Bg5 h6 8. Bh4 Qe7 9. Nd5 Qd8 10. Nxf6+ gxf6 11. c3 Kh8 12. Qd2 Kh7 13. g4 Rg8 14. Bxf7 Rg7 15. Bc4 Qe7 16. 0-0-0 Be6 17. Bxe6 Qxe6 18. c4 Bd4 19. Bg3 Rag8 20. Nxd4 Nxd4 21. f4 exf4 22. Bxf4 h5 23. gxh5 Rg2 24. Qe3 c5 25. Rd2 f5 26. Rxg2 Rxg2 27. e5 d5 28. cxd5 Qxd5 29. Qe1 Rc2+ 30. Kd1 Qf3+ 31. Qe2 Qxe2# 0-1

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "2000.08.10"]
[Round "9"]
[White "Perizonius, Oscar"]
[Black "Laarhoven, Thijs"]
[Result "0-1"]
[ECO "B34"]
[PlyCount "68"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qd1 g6 5. Nf3 Bg7 6. Nc3 d6 7. Bb5 Bg4 8. h3 Bd7 9. 0-0 Nf6 10. Bg5 0-0 11. Bxc6 Bxc6 12. e5 Bxf3 13. Qxf3 dxe5 14. Bxf6 exf6 15. Qxb7 Rb8 16. Qxa7 Rxb2 17. Qa4 Qa8 18. Qxa8 Rxa8 19. Rfd1 Rxc2 20. Ne4 f5 21. Ng5 h6 22. Nf3 e4 23. Nh4 Bxa1 24. Rxa1 Raxa2 25. Rd1 Rxf2 26. Rd8+ Kg7 27. Rd6 g5 28. Nxf5+ Rxf5 29. Kh2 e3 30. Rd3 e2 31. Re3 Rf1 32. Kg3 Ra3 33. Rxa3 e1Q+ 34. Kg4 Qh4# 0-1

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "2000.08.09"]
[Round "5"]
[White "Perizonius, Oscar"]
[Black "Cohen, Vincent"]
[Result "1-0"]
[ECO "C68"]
[PlyCount "43"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "13"]
[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. Nc3 Bc5 4. Bb5 a6 5. Bxc6 dxc6 6. Nxe5 Bd4 7. Nf3 Bb6 8. d3 Bg4 9. 0-0 Nf6 10. Bg5 h6 11. Bf4 Nh5 12. Be5 f6 13. h3 Be6 14. Bd4 c5 15. Be3 Ba5 16. Bxc5 c6 17. Nd4 Bc7 18. Qxh5+ Bf7 19. Qg4 b6 20. Nxc6 Be6 21. Qxe6+ Qe7 22. Qxe7# 1-0

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "2000.08.08"]
[Round "2"]
[White "Bitalzadeh, Ali"]
[Black "Perizonius, Oscar"]
[Result "1-0"]
[ECO "C44"]
[PlyCount "36"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 d5 4. dxe5 dxe4 5. Qxd8+ Nxd8 6. Ng5 Ne6 7. Nxe4 Bb4+ 8. Bd2 Bxd2+ 9. Nbxd2 Nf4 10. g3 Nh3 11. 0-0-0 Bg4 12. f3 Bf5 13. Bxh3 Bxh3 14. g4 0-0-0 15. Rhg1 f5 16. exf6 Nxf6 17. Ng5 Bxg4 18. fxg4 Rd4 1-0

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "2000.08.07"]
[Round "1"]
[White "Perizonius, Oscar"]
[Black "Kedar, Tomer"]
[Result "1-0"]
[ECO "C48"]
[PlyCount "45"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "13"]
[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. Nc3 Nf6 4. Bb5 Nd4 5. Nxe5 Qe7 6. Nf3 Nxb5 7. Nxb5 Kd8 8. d3 d5 9. e5 Bg4 10. Nxc7 Kxc7 11. d4 Ne4 12. h3 Bh5 13. 0-0 f6 14. Qe1 Qf7 15. c4 Qg6 16. Nh4 Qe8 17. cxd5 fxe5 18. Qxe4 exd4 19. Bf4+ Kb6 20. Qxd4+ Bc5 21. Bc7+ Kb5 22. Qd3+ Ka4 23. Qb3# 1-0

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.13"]
[Round "8"]
[White "Hendriks, Tobias"]
[Black "Perizonius, Oscar"]
[Result "1-0"]
[ECO "C54"]
[PlyCount "61"]
[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 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 Be7 6. d5 Na5 7. Bd3 b6 8. 0-0 0-0 9. Be3 Nb7 10. Nbd2 c6 11. c4 Nc5 12. Bxc5 Bxc5 13. Nb3 Be7 14. Qc2 cxd5 15. cxd5 Bc5 16. Nxc5 bxc5 17. Qxc5 d6 18. Qc3 Bg4 19. Bc2 Rc8 20. Qd3 Bxf3 21. gxf3 Nd7 22. Rac1 Nb6 23. Kh1 Na4 24. Bxa4 Rxc1 25. Rxc1 Qa5 26. Bb3 Qb4 27. a3 Qb6 28. Qe3 Qxe3 29. fxe3 Rb8 30. Kg2 Rxb3 31. Rc8# 1-0

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.13"]
[Round "7"]
[White "Perizonius, Rutger"]
[Black "Perizonius, Oscar"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "14"]
[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 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Ng5 Qxg5 5. Nc3 Qxg2 6. Ke2 Qxf2+ 7. Kd3 Nb4# 0-1

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.12"]
[Round "6"]
[White "Perizonius, Oscar"]
[Black "Hoekstra, Pim"]
[Result "0-1"]
[ECO "D00"]
[PlyCount "94"]
[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. Nc3 Nf6 3. Nf3 Nc6 4. Bf4 g6 5. h4 Bg7 6. e3 Bf5 7. a3 0-0 8. Bd3 Bg4 9. 0-0 Qd7 10. Ne5 Nxe5 11. dxe5 Bxd1 12. exf6 Bxf6 13. Rfxd1 Bxc3 14. bxc3 Qg4 15. g3 Qe6 16. Bxc7 Qc6 17. Be5 f6 18. Bf4 Qxc3 19. e4 dxe4 20. Bxe4 Rad8 21. Bd5+ Kg7 22. Bd2 Qc5 23. Bb4 Qxc2 24. Bxe7 Rde8 25. Bxf8+ Rxf8 26. Rac1 Qa4 27. Ra1 Rd8 28. Kg2 b5 29. Rd3 b4 30. Rd4 Qb5 31. Bc4 Qb6 32. Rxd8 Qxd8 33. axb4 Qd4 34. Rc1 Qd2 35. Rb1 Qd4 36. Be2 Qe4+ 37. Bf3 Qxb1 38. Bd5 Qxb4 39. Kf3 Qc3+ 40. Ke2 Qe5+ 41. Be4 Qxe4+ 42. Kd2 a5 43. Kc3 a4 44. Kb2 Qb4+ 45. Ka2 Qb3+ 46. Ka1 a3 47. h5 Qb2# 0-1

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.11"]
[Round "5"]
[White "Deceuninck, Serge"]
[Black "Perizonius, Oscar"]
[Result "1-0"]
[ECO "C44"]
[PlyCount "83"]
[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 e5 2. Nf3 Nc6 3. d4 d5 4. dxe5 dxe4 5. Qxd8+ Kxd8 6. Ng5 Nxe5 7. Nxe4 Bf5 8. Nbd2 Nf6 9. Nxf6 gxf6 10. c3 Bd3 11. Bxd3 Nxd3+ 12. Ke2 Nxc1+ 13. Raxc1 Bd6 14. g3 f5 15. Rcd1 f4 16. Kf3 fxg3 17. hxg3 Kd7 18. Ne4 a5 19. Rh6 Ra6 20. Nc5+ Kc8 21. Nxa6 bxa6 22. Rdh1 a4 23. Rxh7 Rxh7 24. Rxh7 f6 25. b3 axb3 26. axb3 a5 27. c4 c5 28. Ra7 Bc7 29. Ra6 f5 30. Rc6 f4 31. g4 Kd7 32. Rxc5 Bd8 33. Kxf4 Bb6 34. Rd5+ Ke6 35. g5 Bc7+ 36. Kg4 Kf7 37. Rd7+ Kg6 38. Rxc7 a4 39. Ra7 axb3 40. Rb7 b2 41. Rxb2 Kg7 42. c5 1-0

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.11"]
[Round "4"]
[White "Perizonius, Oscar"]
[Black "Reinders, Bram Hein"]
[Result "1-0"]
[ECO "D00"]
[PlyCount "99"]
[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. Nc3 Nf6 3. Bf4 Nh5 4. Nh3 f6 5. e3 Bxh3 6. gxh3 e5 7. dxe5 fxe5 8. Bxe5 Nc6 9. Bg3 Bb4 10. Bb5 Bxc3+ 11. bxc3 Qd7 12. e4 dxe4 13. Qxd7+ Kxd7 14. Bxc6+ Kxc6 15. 0-0-0 b6 16. Rd4 Nf6 17. Be5 Rad8 18. Bxf6 gxf6 19. Rxe4 Rde8 20. Rc4+ Kb7 21. Rg1 Re2 22. Rg2 Re1+ 23. Kd2 Ra1 24. a4 Rd8+ 25. Ke3 Rc1 26. Rg7 Rxc2 27. Rxh7 Re8+ 28. Kd3 Rxf2 29. Rhxc7+ Kb8 30. a5 bxa5 31. R4c6 Rc8 32. Rxc8+ Kb7 33. h4 f5 34. h5 Rb2 35. h6 Rb6 36. Rxb6+ axb6 37. Rf8 a4 38. h7 Kc6 39. h8Q a3 40. Qe5 a2 41. Qe1 Kc5 42. Qa1 f4 43. Rxf4 b5 44. Qxa2 Kb6 45. Rb4 Kc5 46. Qa5 Kd5 47. Qxb5+ Kd6 48. Rc4 Ke6 49. Rc6+ Kd7 50. Qb7+ 1-0

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.10"]
[Round "3"]
[White "Kool, Annelies"]
[Black "Perizonius, Oscar"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "53"]
[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 e5 2. Nf3 Nc6 3. Bc4 h6 4. 0-0 a6 5. Nc3 Bb4 6. d3 Nd4 7. Nxd4 exd4 8. Nd5 d6 9. Nxb4 a5 10. Qf3 f6 11. Nd5 Ne7 12. Nxe7 Qxe7 13. Qh5+ Kf8 14. e5 dxe5 15. b3 Bd7 16. Ba3 c5 17. Bxc5 Be8 18. Bxe7+ Kxe7 19. Qf3 Bc6 20. Qg3 Rhg8 21. Bxg8 Rxg8 22. b4 axb4 23. Rab1 Bd5 24. Rxb4 Bxa2 25. Rxb7+ Kf8 26. Ra1 Bd5 27. Ra8# 1-0

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.10"]
[Round "2"]
[White "Perizonius, Oscar"]
[Black "Verhaegen, Jos"]
[Result "0-1"]
[ECO "D00"]
[PlyCount "73"]
[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. Nc3 Nf6 3. Nf3 Nc6 4. Bg5 e6 5. Bxf6 Qxf6 6. e3 Bb4 7. Bb5 0-0 8. 0-0 Bd7 9. Qd2 Rfe8 10. Bxc6 Bxc6 11. a3 Bd6 12. a4 a6 13. b3 Bb4 14. h4 Rad8 15. a5 h6 16. Nh2 Qxh4 17. g3 Qf6 18. Ng4 Qf5 19. Ne5 Bb5 20. Rfe1 f6 21. Nd3 Bxd3 22. cxd3 Rc8 23. e4 Qg6 24. Ra4 Bd6 25. Ne2 c5 26. Nf4 Bxf4 27. Qxf4 cxd4 28. Rxd4 e5 29. Qf5 Qxf5 30. exf5 exd4 31. Rf1 Rc3 32. b4 Rxd3 33. Rb1 Rc3 34. b5 Rc5 35. g4 Rxb5 36. Rxb5 axb5 37. Kf1 0-1

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.09"]
[Round "1"]
[White "Vivolo, Felipe"]
[Black "Perizonius, Oscar"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "97"]
[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 e5 2. Nf3 Nc6 3. Bc4 f6 4. 0-0 d6 5. h3 Nd4 6. Nxd4 exd4 7. Bxg8 Rxg8 8. Qh5+ g6 9. Qd5 Rg7 10. Qxd4 f5 11. exf5 Bxf5 12. Re1+ Re7 13. Rxe7+ Qxe7 14. Nc3 Bg7 15. Qa4+ Bd7 16. Qe4 Bf5 17. Qxe7+ Kxe7 18. Nd5+ Kd7 19. d3 Re8 20. Ne3 Bh6 21. Kh2 Bf4+ 22. g3 Bxe3 23. Bxe3 g5 24. g4 Bg6 25. Kg3 Re5 26. Bxa7 b6 27. b4 Re8 28. a4 Ra8 29. Bxb6 cxb6 30. Ra3 b5 31. a5 Kc6 32. c4 bxc4 33. dxc4 d5 34. b5+ Kc5 35. b6 Be8 36. cxd5 Kb4 37. b7 Rb8 38. a6 Kc5 39. a7 Bc6 40. axb8Q Bxd5 41. Qc7+ Bc6 42. Qxc6+ Kxc6 43. b8Q h5 44. Qe8+ Kc5 45. Qd7 Kb4 46. Rd3 Kc5 47. Qd5+ Kb4 48. Rb3+ Ka4 49. Qb5# 1-0

