[Event "Leiden SB-ch"]
[White "Van Os, Albert"]
[Black "Otto, Paul"]
[Site "Leiden"]
[Round "3"]
[Result "1-0"]
[Date "2009.06.02"]
[ECO "B10"]
[WhiteElo "1875"]
[BlackElo "1277"]
[PlyCount "63"]
[EventDate "2009.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. Ne5 Nf6 5. d4 Nc6 6. Bb5 Qb6 7. Nc3 e6 8. 0-0 Be7 9. a4 a5 10. Be3 0-0 11. Kh1 Nd7 12. Ne2 Qc7 13. f4 f6 14. Nf3 Bd6 15. c3 Rd8 16. Bd3 e5 17. fxe5 fxe5 18. dxe5 Ndxe5 19. Ng5 g6 20. Nd4 Nxd4 21. Bxd4 Nxd3 22. Qxd3 Bf5 23. Rxf5 gxf5 24. Qxf5 Re8 25. Qxd5+ Kf8 26. Rf1+ Ke7 27. Rf7+ Kd8 28. Ne6+ Kc8 29. Nxc7 Re1+ 30. Bg1 Bxc7 31. Qd7+ Kb8 32. Qxc7# 1-0

[Event "Leiden SB-ch"]
[White "Van Briemen, Willem Jan"]
[Black "Otto, Paul"]
[Site "Leiden"]
[Round "1"]
[Result "1-0"]
[Date "2008.05.20"]
[ECO "D52"]
[WhiteElo "1947"]
[BlackElo "1267"]
[PlyCount "45"]
[EventDate "2008.05.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Bd6 7. Qc2 h6 8. Bh4 g5 9. Bg3 Bxg3 10. hxg3 Qa5 11. a3 c5 12. dxc5 Qxc5 13. b4 Qc7 14. c5 a6 15. Nxg5 b6 16. cxb6 Nxb6 17. Rc1 Bb7 18. Nxd5 Qxc2 19. Nxf6+ Ke7 20. Rxc2 Kxf6 21. Nxf7 Rac8 22. Rxc8 Nxc8 23. Nxh8 1-0

[Event "Leiden SB-chB"]
[White "Otto, Paul"]
[Black "Brouwer, Pieter"]
[Site "Leiden"]
[Round "7"]
[Result "0-1"]
[Date "2004.07.07"]
[ECO "A03"]
[WhiteElo "1108"]
[BlackElo "1569"]
[PlyCount "36"]
[EventDate "2004.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 c5 3. d3 Nc6 4. e4 dxe4 5. Nc3 exf3 6. Qxf3 Nd4 7. Qf2 Nf6 8. h3 b6 9. Be3 Bb7 10. 0-0-0 g6 11. Rg1 Qd7 12. g4 0-0-0 13. Bg2 Bg7 14. Bxb7+ Kxb7 15. a4 Nd5 16. Qg2 Kb8 17. f5 Be5 18. Rgf1 Nxe3 0-1

[Event "Haarlem Nova College op 3rd"]
[White "Heed, Ronny"]
[Black "Otto, Paul"]
[Site "Haarlem"]
[Round "5"]
[Result "1-0"]
[Date "2004.07.04"]
[ECO "A85"]
[PlyCount "117"]
[EventDate "2004.07.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. d4 f5 2. c4 d6 3. Nc3 Nc6 4. Nf3 Nf6 5. a3 a5 6. e3 g6 7. Qc2 Bg7 8. Be2 0-0 9. 0-0 Qe8 10. Qb3 e5 11. c5+ Kh8 12. Bb5 Rb8 13. d5 Bd7 14. cxd6 cxd6 15. Qa4 e4 16. Nd2 Ne7 17. Bxd7 Qxd7 18. Qxa5 b6 19. Qb5 Qxb5 20. Nxb5 Nfxd5 21. Nxd6 Be5 22. N2c4 Bxd6 23. Nxd6 Rf6 24. Nb5 h5 25. b4 Re6 26. Nd4 Rd6 27. Bb2 Kh7 28. Rac1 Rc8 29. Rxc8 Nxc8 30. Rc1 Nde7 31. g3 Rd7 32. Kg2 Na7 33. Rc2 b5 34. Rc5 Rb7 35. h4 Kh6 36. f3 Nec8 37. Re5 Nd6 38. Re6 Nc4 39. Bc1 Nc8 40. Nxf5+ Kh7 41. Nd4 exf3+ 42. Nxf3 N8d6 43. Ng5+ Kh6 44. e4 Kg7 45. Kf3 Nf7 46. Nxf7 Rxf7+ 47. Ke2 Rb7 48. e5 Ra7 49. Bg5 Kf7 50. Rf6+ Kg7 51. e6 Ne5 52. Rf4 Rxa3 53. Bf6+ Kh6 54. Bxe5 Rxg3 55. e7 Rg2+ 56. Kf3 Rg1 57. e8Q Rf1+ 58. Ke2 Rxf4 59. Qh8# 1-0

[Event "Haarlem Nova College op 3rd"]
[White "Otto, Paul"]
[Black "Kent, Dave"]
[Site "Haarlem"]
[Round "6"]
[Result "0-1"]
[Date "2004.07.04"]
[ECO "A03"]
[PlyCount "82"]
[EventDate "2004.07.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 c5 3. e3 Nc6 4. Bb5 Bd7 5. b3 e6 6. Bb2 Nf6 7. 0-0 Qc7 8. Bxc6 Bxc6 9. Ne5 Bd6 10. d3 0-0-0 11. Qe1 Rdg8 12. Nxc6 Qxc6 13. Qh4 Nd7 14. a4 h5 15. Nd2 f6 16. Nf3 Be7 17. Qg3 h4 18. Nxh4 g5 19. fxg5 Rxg5 20. Qe1 Ne5 21. Kh1 d4 22. e4 Rgh5 23. Nf3 Nxf3 24. Rxf3 Rxh2+ 25. Kg1 Rh1+ 26. Kf2 Rxe1 27. Rxe1 Qe8 28. Rc1 f5 29. c3 fxe4 30. dxe4 Bg5 31. Rd1 Be3+ 32. Ke2 e5 33. c4 Qg6 34. Kd3 Qxg2 35. Ba3 Rh2 36. Rf8+ Kd7 37. Rf7+ Ke6 38. Re7+ Kxe7 39. Bxc5+ Ke6 40. Bxd4 Qc2+ 41. Kxe3 Qe2# 0-1

[Event "Haarlem Nova College op 3rd"]
[White "Otto, Paul"]
[Black "Sala, Frank"]
[Site "Haarlem"]
[Round "4"]
[Result "0-1"]
[Date "2004.07.03"]
[ECO "A02"]
[PlyCount "44"]
[EventDate "2004.07.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. f4 d6 2. d3 e5 3. fxe5 dxe5 4. Nf3 Nc6 5. e4 Bc5 6. Be2 Nge7 7. Nc3 f5 8. Na4 Bd6 9. 0-0 0-0 10. Qe1 Ng6 11. Ng5 Be7 12. Nh3 fxe4 13. Rxf8+ Bxf8 14. dxe4 Qd4+ 15. Kh1 Qxa4 16. b3 Qd4 17. Bc4+ Kh8 18. c3 Qd6 19. Ng5 Nd8 20. Qf1 Be6 21. a4 Bxc4 22. Qxc4 Qd1+ 0-1

[Event "Haarlem Nova College op 3rd"]
[White "Pauwels, Rudi"]
[Black "Otto, Paul"]
[Site "Haarlem"]
[Round "3"]
[Result "1-0"]
[Date "2004.07.03"]
[ECO "A81"]
[WhiteElo "2001"]
[PlyCount "65"]
[EventDate "2004.07.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. c3 Bg7 5. Qb3 e6 6. Nd2 d5 7. Nh3 Nh5 8. Nf3 Nc6 9. Nf4 Nxf4 10. Bxf4 Qe7 11. h4 h6 12. 0-0-0 a5 13. Qb5 0-0 14. Qd3 e5 15. dxe5 Nxe5 16. Nxe5 Bxe5 17. Qxd5+ Be6 18. Qxe5 Kh7 19. Qxc7 Qxc7 20. Bxc7 Rf7 21. Rd8 Rc8 22. Rxc8 Bxc8 23. Bxa5 Rf6 24. Bb4 b5 25. Rd1 h5 26. e3 Be6 27. b3 Rf7 28. Bc6 Kh6 29. Rd8 g5 30. Rd6 Rf6 31. Bd7 Rg6 32. Rxe6 Rxe6 33. Bxe6 1-0

[Event "Haarlem Nova College op 3rd"]
[White "Otto, Paul"]
[Black "Slings, Stefan"]
[Site "Haarlem"]
[Round "2"]
[Result "0-1"]
[Date "2004.07.02"]
[ECO "A02"]
[BlackElo "2081"]
[PlyCount "44"]
[EventDate "2004.07.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. f4 d6 2. Nf3 Nf6 3. d3 g6 4. b3 Bg7 5. Bb2 c6 6. e3 Nbd7 7. Be2 e5 8. fxe5 Ng4 9. Qd2 Ngxe5 10. 0-0 Nxf3+ 11. Rxf3 Bxb2 12. h3 Ne5 13. Rf1 Bxa1 14. c3 0-0 15. Qc1 Qa5 16. d4 Qxa2 17. Nd2 Nd7 18. b4 Qb2 19. Qxa1 Qxd2 20. Qe1 Qxe1 21. Rxe1 a5 22. bxa5 Rxa5 0-1

[Event "Leiden SB-chB"]
[White "De Vreede, Henk"]
[Black "Otto, Paul"]
[Site "Leiden"]
[Round "4"]
[Result "1-0"]
[Date "2004.06.09"]
[ECO "B12"]
[WhiteElo "1485"]
[BlackElo "1108"]
[PlyCount "95"]
[EventDate "2004.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bg4 4. Be2 Bxe2 5. Nxe2 e6 6. 0-0 Ne7 7. Bg5 h6 8. Bh4 Na6 9. f4 Qb6 10. b3 Nf5 11. Bf2 Be7 12. g4 Nxd4 13. Bxd4 c5 14. Bf2 Qd8 15. c4 Bh4 16. cxd5 Bxf2+ 17. Rxf2 Qh4 18. Rg2 0-0-0 19. d6 h5 20. g5 Rhf8 21. Qf1 f6 22. gxf6 gxf6 23. Qf2 Qh3 24. Qg3 Qf5 25. Qg6 Qh3 26. Rg3 Qh4 27. Nbc3 Nb8 28. Rd1 Rd7 29. Nb5 b6 30. Nc7 Nc6 31. Nxe6 Rh8 32. Qe4 Kb7 33. Qd5 fxe5 34. fxe5 Qb4 35. N6f4 Ka6 36. Qxc6 h4 37. Rh3 Rg8+ 38. Kh1 Rh7 39. Qa4+ Qxa4 40. bxa4 Kb7 41. e6 Kc8 42. e7 Kd7 43. Re3 Re8 44. Nd5 Rh6 45. Nc7 Rxd6 46. Rxd6+ Kxd6 47. Nxe8+ Kd7 48. Nf6+ 1-0

[Event "Leiden SB-chB"]
[White "Otto, Paul"]
[Black "Verheijen, Jan"]
[Site "Leiden"]
[Round "6"]
[Result "0-1"]
[Date "2004.06.09"]
[ECO "A03"]
[WhiteElo "1108"]
[BlackElo "1543"]
[PlyCount "64"]
[EventDate "2004.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 Nf6 3. e3 c5 4. b3 Nc6 5. Bb5 a6 6. Bxc6+ bxc6 7. Bb2 a5 8. a4 Ba6 9. d3 e6 10. 0-0 Be7 11. Ne5 Qb6 12. Nd2 c4 13. dxc4 Qxe3+ 14. Kh1 dxc4 15. Rf3 Qb6 16. Ndxc4 Bxc4 17. Nxc4 Qa6 18. Nd6+ Kf8 19. Rd3 Nd5 20. Bxg7+ Kxg7 21. Qg4+ Kf8 22. Nxf7 Kxf7 23. Qh5+ Kf8 24. Rf1 Nf6 25. Qh6+ Ke8 26. f5 Rd8 27. Rdf3 Rg8 28. fxe6 Qe2 29. R3f2 Qe4 30. Qh3 Rd6 31. Qc3 Rxe6 32. Qxa5 Kf7 0-1

[Event "Leiden SB-chB"]
[White "Otto, Paul"]
[Black "Van Dijk, Rens"]
[Site "Leiden"]
[Round "3"]
[Result "0-1"]
[Date "2004.06.02"]
[ECO "A02"]
[WhiteElo "1108"]
[BlackElo "1500"]
[PlyCount "88"]
[EventDate "2004.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. f4 c5 2. Nf3 d6 3. d3 e6 4. e4 g6 5. Be2 Bg7 6. 0-0 Nf6 7. Nc3 0-0 8. Qe1 a6 9. f5 exf5 10. Ng5 fxe4 11. Qh4 h6 12. Ngxe4 Nxe4 13. Qxe4 Re8 14. Qf4 Qe7 15. Qe4 Be6 16. Bf4 Nc6 17. Bf3 Rab8 18. Nd5 Qd8 19. Rae1 Nd4 20. c3 Nf5 21. Bc1 b5 22. Rf2 a5 23. g4 Nh4 24. h3 Qd7 25. Ref1 f5 26. gxf5 Nxf3+ 27. Qxf3 Bxf5 28. Kh2 Kh7 29. Bxh6 Kxh6 30. Qf4+ Kh7 31. Qh4+ Kg8 32. Rg1 Be5+ 33. Kg2 Qb7 34. c4 bxc4 35. dxc4 Rf8 36. Rf3 Qxb2+ 37. Qf2 Qxf2+ 38. Rxf2 Be4+ 39. Kf1 Bd3+ 40. Kg2 Rxf2+ 41. Kxf2 Bd4+ 42. Kg3 Bxg1 43. Ne7+ Kf7 44. Nc6 Rb2 0-1

[Event "Leiden SB-chB"]
[White "Jansen, Bert"]
[Black "Otto, Paul"]
[Site "Leiden"]
[Round "2"]
[Result "1-0"]
[Date "2004.05.26"]
[ECO "A85"]
[WhiteElo "1540"]
[BlackElo "1108"]
[PlyCount "43"]
[EventDate "2004.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 f5 2. c4 d6 3. Nc3 Nf6 4. Bg5 g6 5. Bxf6 exf6 6. e3 Bh6 7. h4 0-0 8. Bd3 f4 9. e4 Qe8 10. f3 f5 11. Nge2 Nc6 12. a3 fxe4 13. Nxe4 Nxd4 14. h5 Nxe2 15. hxg6 Bg7 16. gxh7+ Kh8 17. Qxe2 Bf5 18. Kf1 Qd7 19. Re1 Bxe4 20. Bxe4 Qe7 21. Qd2 Rad8 22. Bxb7 1-0

[Event "Leiden SB-chB"]
[White "Bregman, Koen"]
[Black "Otto, Paul"]
[Site "Leiden"]
[Round "1"]
[Result "1-0"]
[Date "2004.05.19"]
[ECO "A80"]
[WhiteElo "1672"]
[BlackElo "1108"]
[PlyCount "49"]
[EventDate "2004.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 Nf6 3. Nc3 g6 4. Bf4 Bg7 5. e3 d6 6. Bc4 c6 7. 0-0 d5 8. Be2 0-0 9. b4 b5 10. a4 a6 11. axb5 cxb5 12. Nxb5 e5 13. Nxe5 Nfd7 14. Nxd7 Qxd7 15. c4 Nc6 16. cxd5 Nxb4 17. Qb3 Nxd5 18. Rfc1 Bb7 19. Rc7 axb5 20. Rxa8 Rxa8 21. Rxd7 Ra1+ 22. Bf1 Bc6 23. Rxd5 Bxd5 24. Qxd5+ Kh8 25. Qd8+ 1-0

