[Event "Maastricht Limburg op-B 7th"]
[Site "Maastricht"]
[Date "2013.05.20"]
[Round "7"]
[White "Ottenhof, Alexander"]
[Black "Brixius, Dirk"]
[Result "1-0"]
[ECO "D45"]
[BlackElo "1903"]
[PlyCount "66"]
[EventDate "2013.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. e3 e6 4. Nc3 Nf6 5. Nf3 Nbd7 6. Bd2 Bd6 7. Bd3 dxc4 8. Bxc4 b5 9. Bd3 Bb7 10. Rc1 a6 11. 0-0 c5 12. b3 0-0 13. Qe2 cxd4 14. exd4 Ng4 15. Bxh7+ Kxh7 16. Ng5+ Kg6 17. Qxg4 Nf6 18. Qe2 Rh8 19. h3 Nh5 20. f4 Qd7 21. g4 Nf6 22. Qd3+ Kh6 23. f5 g6 24. Nxe6+ Kh7 25. fxg6+ Kg8 26. gxf7+ Qxf7 27. g5 Ng4 28. Rxf7 Bh2+ 29. Kf1 Kxf7 30. Qf5+ Ke7 31. Nd5+ Bxd5 32. Bb4+ Ke8 33. Qg6+ Kd7 1-0

[Event "Maastricht Limburg op-B 7th"]
[Site "Maastricht"]
[Date "2013.05.20"]
[Round "6"]
[White "Zimmermann, Michael"]
[Black "Ottenhof, Alexander"]
[Result "1/2-1/2"]
[ECO "A34"]
[PlyCount "139"]
[EventDate "2013.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d6 3. e4 c5 4. h3 Nc6 5. g3 Bd7 6. Bg2 g6 7. d3 Bg7 8. Be3 0-0 9. Qd2 Nd4 10. Nge2 e5 11. Rc1 Be6 12. Bh6 Rb8 13. Bxg7 Kxg7 14. g4 Rh8 15. Ng3 h6 16. Nce2 Nc6 17. f4 Qa5 18. f5 Bd7 19. Nc3 Rbf8 20. 0-0 Nd4 21. Rf2 b5 22. Rcf1 b4 23. g5 bxc3 24. gxf6+ Kg8 25. bxc3 Nc6 26. fxg6 fxg6 27. f7+ Kg7 28. Rf6 Qd8 29. Qf2 Qe7 30. Nh5+ gxh5 31. Qg3+ Bg4 32. R6f5 Nd8 33. hxg4 h4 34. Qf2 Rxf7 35. Bh3 Rhf8 36. Kh2 Ne6 37. Rg1 Nf4 38. g5 Rxf5 39. exf5 Nxh3 40. f6+ Kg6 41. Kxh3 Qe6+ 42. Kxh4 hxg5+ 43. Rxg5+ Kf7 44. Rg7+ Ke8 45. Kg5 e4 46. dxe4 Qe5+ 47. Qf5 Qg3+ 48. Qg4 Qe5+ 49. Kg6 Rxf6+ 50. Kh7 Re6 51. Rxa7 Qxe4+ 52. Qxe4 Rxe4 53. Kg7 Rxc4 54. Kf6 Rxc3 55. Ke6 Kd8 56. Kxd6 Kc8 57. Kc6 Kb8 58. Rb7+ Ka8 59. Rb3 Rc2 60. a3 c4 61. Rf3 Rb2 62. a4 Rb3 63. Rf5 Ka7 64. Ra5+ Kb8 65. Rc5 c3 66. a5 Ka7 67. Kd5 Ka6 68. Kc4 Rb5 69. Rc6+ Kxa5 70. Kxc3 1/2-1/2

[Event "Maastricht Limburg op-B 7th"]
[Site "Maastricht"]
[Date "2013.05.19"]
[Round "5"]
[White "Ottenhof, Alexander"]
[Black "Lengtat, Markus"]
[Result "1-0"]
[ECO "D45"]
[BlackElo "1834"]
[PlyCount "49"]
[EventDate "2013.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. e3 c6 6. Ne5 Nbd7 7. f4 Nxe5 8. fxe5 Nd7 9. Bd3 0-0 10. 0-0 f5 11. Bd2 Kh8 12. c5 Bg5 13. Ne2 Rf7 14. Rf3 Qf8 15. Qf1 g6 16. Nf4 Bxf4 17. exf4 b5 18. a4 Rb8 19. axb5 Nxc5 20. Bb4 cxb5 21. Bxc5 Qe8 22. Bxa7 Rbb7 23. Bc5 Qd8 24. Ra8 Rf8 25. Bxf8 1-0

[Event "Maastricht Limburg op-B 7th"]
[Site "Maastricht"]
[Date "2013.05.19"]
[Round "4"]
[White "Warmerdam, Max"]
[Black "Ottenhof, Alexander"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2017"]
[PlyCount "57"]
[EventDate "2013.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Be3 d6 5. Qd2 Nd7 6. f3 Qc7 7. Nge2 Nb6 8. Ng3 h5 9. Bd3 Bd7 10. a4 d5 11. Nge2 Nc4 12. Bxc4 dxc4 13. 0-0 Nf6 14. Nf4 0-0 15. e5 Nh7 16. Qe2 b5 17. axb5 cxb5 18. e6 fxe6 19. Nxg6 Rf7 20. f4 Nf6 21. Ne5 b4 22. Qf3 Rc8 23. Na4 Nd5 24. Nxf7 Nxe3 25. Qxe3 Bxa4 26. Rxa4 Qd7 27. c3 Qxa4 28. Qxe6 Rc7 29. Ng5+ 1-0

[Event "Maastricht Limburg op-B 7th"]
[Site "Maastricht"]
[Date "2013.05.18"]
[Round "2"]
[White "Deketelaere, Francky"]
[Black "Ottenhof, Alexander"]
[Result "1/2-1/2"]
[ECO "B00"]
[WhiteElo "1817"]
[PlyCount "34"]
[EventDate "2013.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 b6 2. e4 Bb7 3. Bd3 Nf6 4. Qe2 e6 5. f4 Nc6 6. c3 d6 7. Nf3 Be7 8. Nbd2 h6 9. Ba6 Qc8 10. Bxb7 Qxb7 11. 0-0 Kd7 12. Rd1 d5 13. Re1 Rae8 14. Ne5+ Nxe5 15. fxe5 Nxe4 16. Nxe4 dxe4 17. Qxe4 Qxe4 1/2-1/2

[Event "Maastricht Limburg op-B 7th"]
[Site "Maastricht"]
[Date "2013.05.18"]
[Round "3"]
[White "Ottenhof, Alexander"]
[Black "Von Lossow, Marcus"]
[Result "1-0"]
[ECO "D12"]
[BlackElo "1745"]
[PlyCount "63"]
[EventDate "2013.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. e3 Nf6 4. Nc3 Bf5 5. Nf3 e6 6. Nh4 Bg6 7. Nxg6 hxg6 8. cxd5 exd5 9. Bd2 Bd6 10. h3 Nbd7 11. Rc1 Ne4 12. Nxe4 dxe4 13. Bc3 0-0 14. Bc4 Nb6 15. Bb3 Nd5 16. h4 Nb4 17. Bxb4 Bxb4+ 18. Kf1 Qf6 19. h5 Rad8 20. hxg6 Qxg6 21. g3 Rd6 22. a3 Ba5 23. Qh5 Qxh5 24. Rxh5 Rh6 25. Rxh6 gxh6 26. Rc5 Bd2 27. Ke2 b6 28. Rxc6 Ba5 29. Bc2 b5 30. b4 Bb6 31. Bxe4 Kg7 32. Bd3 1-0

[Event "Maastricht Limburg op-B 7th"]
[Site "Maastricht"]
[Date "2013.05.17"]
[Round "1"]
[White "Ottenhof, Alexander"]
[Black "Horbach, Fabian"]
[Result "0-1"]
[ECO "B22"]
[BlackElo "1983"]
[PlyCount "50"]
[EventDate "2013.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. f3 d5 4. e5 Nfd7 5. d4 Nc6 6. Bb5 Qb6 7. Bxc6 bxc6 8. Qb3 e6 9. Qxb6 axb6 10. f4 cxd4 11. cxd4 c5 12. Nf3 cxd4 13. Nxd4 Bc5 14. Nb3 0-0 15. Nxc5 Nxc5 16. 0-0 Nb3 17. axb3 Rxa1 18. Be3 Ba6 19. Rd1 Rc8 20. Nc3 Rxd1+ 21. Nxd1 Rc2 22. b4 d4 23. Bxd4 Rc1 24. Bxb6 Rxd1+ 25. Kf2 Rd2+ 0-1

[Event "Bussum op 29th"]
[Site "Bussum"]
[Date "2012.05.27"]
[Round "4.17"]
[White "Ottenhof, Alexander"]
[Black "Moes, Waldemar"]
[Result "1/2-1/2"]
[ECO "B14"]
[BlackElo "2054"]
[PlyCount "67"]
[EventDate "2012.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. e3 Nf6 5. a3 cxd4 6. exd4 g6 7. Nf3 Bg7 8. Be3 0-0 9. Qd2 Nc6 10. Rd1 b6 11. cxd5 Nxd5 12. Bh6 Bb7 13. h4 Nxc3 14. bxc3 Ne7 15. Bd3 Bxf3 16. gxf3 Nf5 17. Bxf5 exf5 18. h5 Re8+ 19. Kf1 Bf6 20. hxg6 fxg6 21. Kg2 Qd5 22. Qd3 Rac8 23. Rhe1 Rxe1 24. Rxe1 g5 25. Kg3 Kf7 26. f4 Rg8 27. f3 gxf4+ 28. Kxf4 Bh4 29. Rh1 Bg3+ 30. Ke3 Re8+ 31. Kd2 Qa2+ 32. Kd1 Qb3+ 33. Kd2 Qb2+ 34. Kd1 1/2-1/2

[Event "Bussum op 29th"]
[Site "Bussum"]
[Date "2012.05.27"]
[Round "5.20"]
[White "Pelgrom, Vincent"]
[Black "Ottenhof, Alexander"]
[Result "1/2-1/2"]
[ECO "B08"]
[PlyCount "30"]
[EventDate "2012.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 Nf6 5. Be2 0-0 6. Bg5 Nc6 7. 0-0 h6 8. Bh4 a6 9. Qd2 Nh7 10. d5 Ne5 11. Bg3 g5 12. Nd4 c5 13. dxc6 bxc6 14. Bxe5 dxe5 15. Nb3 Qc7 1/2-1/2

[Event "Bussum op 29th"]
[Site "Bussum"]
[Date "2012.05.26"]
[Round "3.16"]
[White "Kok, Marijke"]
[Black "Ottenhof, Alexander"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "1916"]
[PlyCount "85"]
[EventDate "2012.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Be3 d6 4. Qd2 Nc6 5. Bb5 Bd7 6. Nc3 Nf6 7. f3 a6 8. Bd3 b5 9. Nce2 Qc8 10. Bh6 Kf8 11. h4 e5 12. Qg5 Nxd4 13. Qxf6 Bxh6 14. Qxh8+ Ke7 15. Qxh7 Be3 16. c3 Ne6 17. f4 exf4 18. Nf3 Qh8 19. Qxh8 Rxh8 20. Ned4 Ng7 21. Nc2 Bc5 22. Nb4 a5 23. Nd5+ Kd8 24. Nxf4 c6 25. Kd2 Kc7 26. Ng5 Kb6 27. Raf1 f6 28. Nf3 Rh6 29. a3 a4 30. Bc2 Kb7 31. Nd4 Bb6 32. Bd1 c5 33. Nc2 f5 34. Bf3 Ka6 35. Ne3 Bd8 36. g3 Ba5 37. Ned5 Bd8 38. Re1 Ka5 39. e5 dxe5 40. Rxe5 g5 41. hxg5 Rd6 42. Rh7 Ne8 43. Rxd7 1-0

[Event "Bussum op 29th"]
[Site "Bussum"]
[Date "2012.05.26"]
[Round "2.11"]
[White "Ottenhof, Alexander"]
[Black "De Ruiter, Danny"]
[Result "0-1"]
[ECO "D94"]
[BlackElo "2135"]
[PlyCount "126"]
[EventDate "2012.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. e3 Bg7 5. Nf3 0-0 6. Bd2 b6 7. b4 c5 8. Qb3 cxd4 9. exd4 dxc4 10. Bxc4 e6 11. Be3 Bb7 12. 0-0-0 Na6 13. Kb1 Rc8 14. Ne5 Nc7 15. Rc1 Ncd5 16. Nb5 a6 17. Na7 Rc7 18. Bd3 Nxe3 19. fxe3 Bxg2 20. Rhg1 Bd5 21. Nac6 Qd6 22. Qa4 Nd7 23. Ne7+ Kh8 24. Rxc7 Nxe5 25. Nxd5 Nxd3 26. Qc2 exd5 27. a3 Nf2 28. Rf1 Ng4 29. Rfxf7 Nxe3 30. Qc1 Nf5 31. Rcd7 Qe6 32. Rxf8+ Bxf8 33. Qc8 Kg8 34. Qc7 Qe1+ 35. Kb2 Qd2+ 36. Kb1 Nxd4 37. Rxh7 Qd1+ 38. Kb2 Qb3+ 39. Kc1 Bh6+ 40. Rxh6 Qe3+ 41. Kb2 Qxh6 42. Qd8+ Kh7 43. Qe7+ Qg7 44. Qh4+ Kg8 45. Qd8+ Kf7 46. Qd7+ Kf6 47. Qxd5 Nf5 48. Kb1 Qc7 49. Qg8 Kg5 50. Qa2 Qc3 51. Qg2+ Kf6 52. h4 Qb3+ 53. Kc1 Qxa3+ 54. Kb1 Qxb4+ 55. Kc1 Nxh4 56. Qc6+ Kg5 57. Qd5+ Nf5 58. Qg2+ Qg4 59. Qc6 Qg1+ 60. Kb2 a5 61. Qc7 Kg4 62. Qb7 g5 63. Kc2 Qc5+ 0-1

[Event "Bussum op 29th"]
[Site "Bussum"]
[Date "2012.05.25"]
[Round "1.12"]
[White "Overeem, Marc"]
[Black "Ottenhof, Alexander"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "2156"]
[PlyCount "84"]
[EventDate "2012.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. Nf3 g6 2. e4 Bg7 3. d4 d6 4. Bc4 e6 5. Bb3 Bd7 6. 0-0 Nc6 7. c3 Qe7 8. d5 Ne5 9. Nxe5 dxe5 10. dxe6 Bxe6 11. Bxe6 Qxe6 12. Qa4+ c6 13. Be3 Ne7 14. Qb3 Qxb3 15. axb3 a6 16. Nd2 0-0 17. Nc4 b5 18. Nb6 Rad8 19. Rxa6 f5 20. Ra7 Nc8 21. Nxc8 Rxc8 22. exf5 gxf5 23. Bg5 Rf7 24. Rfa1 Rcc7 25. Rxc7 Rxc7 26. b4 Kf7 27. Kf1 Ke6 28. Ke2 f4 29. Bd8 Rd7 30. Bb6 h5 31. f3 h4 32. Ra7 Rxa7 33. Bxa7 Bf6 34. Kd3 Kf5 35. Bf2 Bd8 36. Bc5 Bf6 37. Ke2 Bd8 38. Kf2 Bg5 39. Bd6 Bf6 40. Bf8 Bg5 41. Bg7 Be7 42. Ke2 Bg5 1/2-1/2

[Event "Zwolle Windesheim op-A"]
[Site "Zwolle"]
[Date "2004.03.21"]
[Round "6"]
[White "Ottenhof, Alexander"]
[Black "Vea, Odin Blikra"]
[Result "1-0"]
[ECO "A40"]
[BlackElo "2053"]
[PlyCount "41"]
[EventDate "2004.03.19"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 099 Extra"]
[Source "ChessBase"]
[SourceDate "2004.05.04"]
[SourceVersion "1"]
[SourceVersionDate "2004.05.04"]
[SourceQuality "1"]

1. d4 f6 2. e4 Kf7 3. Nf3 e6 4. Bc4 c6 5. d5 Qa5+ 6. Bd2 Qc5 7. Bb3 Ne7 8. Nc3 Ng6 9. 0-0 Be7 10. Be3 Qd6 11. Nd4 Rd8 12. Qg4 Ne5 13. dxe6+ dxe6 14. Qh5+ Kg8 15. Rad1 g6 16. Qh3 Kh8 17. a3 Na6 18. Nxe6 Bxe6 19. Bxe6 Qc7 20. f4 Nc5 21. fxe5 1-0

[Event "Rotterdam Triomfator op 1st"]
[Site "Rotterdam"]
[Date "2002.06.16"]
[Round "5"]
[White "Bey, Jan"]
[Black "Ottenhof, Alexander"]
[Result "0-1"]
[ECO "D03"]
[WhiteElo "1821"]
[BlackElo "1814"]
[PlyCount "72"]
[EventDate "2002.06.14"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. d4 d5 2. Bg5 g6 3. Nf3 Bg7 4. e3 Nf6 5. Bd3 0-0 6. Nbd2 c6 7. h3 Nbd7 8. 0-0 Re8 9. c3 Nf8 10. Bxf6 Bxf6 11. e4 dxe4 12. Nxe4 Bg7 13. Qb3 b5 14. Nc5 Ne6 15. Ne4 a5 16. a4 Qd5 17. Ned2 Qxb3 18. Nxb3 b4 19. Be4 Ra6 20. Rfc1 bxc3 21. bxc3 Bd7 22. Rab1 c5 23. d5 Nf4 24. Nxc5 Ne2+ 25. Kf1 Nxc1 26. Nxa6 Na2 27. c4 Bxa4 28. c5 Nc3 29. Rb8 Rxb8 30. Nxb8 Nxe4 31. c6 Nd6 32. Nd2 Bb5+ 33. Kg1 a4 34. c7 a3 35. Ne4 Nc8 36. Nc6 Bxc6 0-1

[Event "NED-ch U26"]
[Site "Leeuwarden"]
[Date "1996.??.??"]
[Round "7"]
[White "Ottenhof, Alexander"]
[Black "Strating, Sybolt"]
[Result "0-1"]
[ECO "D00"]
[BlackElo "2310"]
[PlyCount "48"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "Juniors"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c3 c6 3. Qc2 g6 4. f3 Bg7 5. Bf4 Nd7 6. Nd2 e5 7. dxe5 Nxe5 8. 0-0-0 Ne7 9. Nb3 0-0 10. e3 Qb6 11. g4 a5 12. Na1 a4 13. h4 Nc4 14. Bxc4 dxc4 15. a3 Nd5 16. Qd2 Ra5 17. Ne2 f5 18. g5 Re8 19. Nc2 Ne7 20. Rhe1 Rd5 21. Ncd4 c5 22. Nxf5 Bxf5 23. Qxd5+ Nxd5 24. Rxd5 Bd3 0-1

[Event "NED-ch U26"]
[Site "Leeuwarden"]
[Date "1996.??.??"]
[Round "2"]
[White "Ottenhof, Alexander"]
[Black "Tondivar, Babak"]
[Result "0-1"]
[ECO "A46"]
[BlackElo "2300"]
[PlyCount "126"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "Juniors"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 Nf6 3. Bg5 c5 4. c3 h6 5. Bh4 b6 6. Nbd2 Bb7 7. Qc2 Nc6 8. e3 Be7 9. Bd3 Rc8 10. dxc5 Bxc5 11. Ne4 Be7 12. Bxf6 gxf6 13. a3 Ne5 14. 0-0-0 Nxd3+ 15. Qxd3 d5 16. Ng3 Qc7 17. Ne2 f5 18. Nfd4 a6 19. Kd2 Qe5 20. f4 Qe4 21. Qxe4 fxe4 22. g4 Kd7 23. h4 f6 24. Rdg1 Rcg8 25. Rg3 Kd6 26. Rhg1 Bc8 27. f5 e5 28. Nc2 Rg7 29. h5 Rhg8 30. Ke1 Kc5 31. b3 a5 32. Kf2 a4 33. bxa4 Bd7 34. Nb4 Bxa4 35. c4 d4 36. exd4+ exd4 37. Nf4 Bd7 38. Ng6 Bd6 39. Rh3 Bc6 40. Na6+ Kxc4 41. Rc1+ Kd5 42. Nb4+ Bxb4 43. axb4 Ra8 44. Rc2 e3+ 45. Kf3 Kd6+ 46. Rxc6+ Kxc6 47. Nf4 Ra3 48. Rh1 e2+ 49. Kxe2 Rxg4 50. Rc1+ Rc3 51. Rf1 Rh4 52. Kd2 Rh2+ 53. Ne2 Re3 54. Re1 Kd6 55. Kd1 d3 56. Nc3 Rxe1+ 57. Kxe1 Rxh5 58. b5 Rxf5 59. Kd2 Rd5 60. Ne4+ Ke5 61. Nf2 h5 62. Nd1 h4 63. Nf2 Kf4 0-1

[Event "NED-ch U26"]
[Site "Leeuwarden"]
[Date "1996.??.??"]
[Round "4"]
[White "Ottenhof, Alexander"]
[Black "Van der Laan, Dinard"]
[Result "0-1"]
[ECO "D00"]
[PlyCount "78"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "Juniors"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c3 Nf6 3. Bg5 Ne4 4. Bh4 g5 5. Bg3 h5 6. f3 Nxg3 7. hxg3 Qd6 8. g4 Qg3+ 9. Kd2 Nc6 10. Na3 Bd7 11. gxh5 g4 12. Qe1 Qd6 13. e3 0-0-0 14. Be2 f5 15. Qh4 Bh6 16. fxg4 Rdg8 17. Nb5 Qf6 18. Qxf6 exf6 19. gxf5 Rxg2 20. Rf1 Ne7 21. Na3 Nxf5 22. Rh3 Ng3 23. Rxg3 Rxg3 24. Nc2 Rhg8 25. Rxf6 Rxg1 26. Rxh6 Bg4 27. Rg6 Rxg6 28. hxg6 Rg2 29. g7 Bxe2 30. g8Q+ Rxg8 31. Kxe2 Rg2+ 32. Kd1 Kd7 33. b3 Ke6 34. c4 dxc4 35. bxc4 Kf5 36. a4 Ke4 37. d5 Rh2 38. a5 Kd3 39. Ne1+ Kxc4 0-1

[Event "NED-ch U26"]
[Site "Leeuwarden"]
[Date "1996.??.??"]
[Round "5"]
[White "Van Tol, Leon J"]
[Black "Ottenhof, Alexander"]
[Result "1-0"]
[ECO "A10"]
[PlyCount "75"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "Juniors"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. g3 f5 2. Bg2 Nf6 3. c4 e6 4. Nc3 Be7 5. d3 0-0 6. Nf3 Nc6 7. 0-0 Qe8 8. e4 g6 9. Qe2 a6 10. d4 Bd8 11. e5 Nh5 12. d5 Ne7 13. Bh6 Ng7 14. Ng5 Kh8 15. Rad1 Ng8 16. Bxg7+ Kxg7 17. f4 Nh6 18. h4 Nf7 19. Rfe1 h6 20. Nxf7 Qxf7 21. c5 g5 22. hxg5 hxg5 23. Rd3 Rh8 24. Red1 Be7 25. d6 cxd6 26. exd6 Bf6 27. Na4 Qg6 28. Nb6 Rb8 29. b4 Qh6 30. Qf3 g4 31. Qe2 Kg6 32. Kf2 Qg7 33. Rh1 Bd4+ 34. Kf1 Re8 35. a3 Rg8 36. Ke1 a5 37. Kd2 Re8 38. Kc2 1-0

[Event "NED-ch U26"]
[Site "Leeuwarden"]
[Date "1996.??.??"]
[Round "3"]
[White "Van Wissen, Michiel"]
[Black "Ottenhof, Alexander"]
[Result "1-0"]
[ECO "B09"]
[WhiteElo "2160"]
[PlyCount "103"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "Juniors"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 0-0 6. Bd3 e6 7. 0-0 b6 8. Qe1 Bb7 9. Qh4 Nh5 10. Qxd8 Rxd8 11. e5 Bf8 12. Be3 Nd7 13. g4 Ng7 14. Ne4 d5 15. Ng3 c5 16. c3 c4 17. Bc2 f5 18. exf6 Nxf6 19. Ne5 Bd6 20. Rae1 Bc8 21. h3 Rf8 22. Rf2 Rb8 23. Ref1 Nd7 24. Kg2 Rb7 25. h4 Nxe5 26. dxe5 Bc5 27. Rf3 Bxe3 28. Rxe3 Rbf7 29. Ne2 Bb7 30. Kg3 Bc6 31. Nd4 Bd7 32. Ref3 b5 33. b4 a6 34. Ra1 a5 35. a4 axb4 36. cxb4 Ra8 37. a5 Ra6 38. Raf1 Rf8 39. Rc3 Re8 40. Rh1 Re7 41. Re3 Be8 42. h5 gxh5 43. f5 exf5 44. gxf5 Bd7 45. e6 Be8 46. Kh4 h6 47. Rhe1 Rc7 48. f6 c3 49. Rg1 Rc4 50. Rxg7+ Kh8 51. Rh7+ Kg8 52. f7+ 1-0

[Event "NED-ch U26"]
[Site "Leeuwarden"]
[Date "1996.??.??"]
[Round "6"]
[White "Van den Brink, Peter"]
[Black "Ottenhof, Alexander"]
[Result "1-0"]
[ECO "B09"]
[WhiteElo "2190"]
[PlyCount "67"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "Juniors"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 Nf6 5. Nf3 0-0 6. Be3 Nbd7 7. Be2 Ng4 8. Bg1 b6 9. h3 Ngf6 10. g4 Bb7 11. Bd3 e6 12. Qe2 c5 13. 0-0-0 a6 14. e5 dxe5 15. dxe5 Nd5 16. Be4 Nxc3 17. bxc3 Qc7 18. h4 c4 19. h5 Rfd8 20. hxg6 hxg6 21. Ng5 Bxe4 22. Nxe4 Qc6 23. Bd4 Qa4 24. Qh2 Qa3+ 25. Kd2 Nc5 26. Nf6+ Kf8 27. Qh7 Bxf6 28. exf6 Rxd4+ 29. Ke2 Re4+ 30. Kf2 Rxf4+ 31. Kg2 Rxf6 32. Qh8+ Ke7 33. Qxa8 Rf4 34. Qd8# 1-0

[Event "NED-ch U26"]
[Site "Leeuwarden"]
[Date "1996.??.??"]
[Round "1"]
[White "Wuts, Frank"]
[Black "Ottenhof, Alexander"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2305"]
[PlyCount "69"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "Juniors"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Bc4 e6 5. 0-0 Ne7 6. Nc3 0-0 7. Bg5 Re8 8. Qd2 a6 9. Rad1 b5 10. Bd3 d5 11. Qf4 Nbc6 12. e5 Qd7 13. Bf6 Nf5 14. Bxg7 Kxg7 15. Ne2 Qe7 16. c3 Rh8 17. b4 Bd7 18. h4 h5 19. Ng5 Kf8 20. Bxf5 gxf5 21. Qf3 Ke8 22. Nf4 Kd8 23. g3 Kc8 24. Nxh5 Kb7 25. Nf6 Rh6 26. Nh3 Rah8 27. Nf4 Bc8 28. a4 Qf8 29. axb5 Ne7 30. Ra1 Ka7 31. Qe2 Rxh4 32. gxh4 Qg7+ 33. Ng2 Rxh4 34. b6+ cxb6 35. Rxa6+ 1-0

[Event "NED corr"]
[Site "Netherlands"]
[Date "1990.??.??"]
[Round "?"]
[White "Wijnand, Peter"]
[Black "Ottenhof, Alexander"]
[Result "1-0"]
[ECO "D00"]
[PlyCount "25"]
[EventDate "1990.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Qxf3 Qxd4 6. Be3 Qe5 7. 0-0-0 Nc6 8. Bb5 Bd7 9. Nh3 a6 10. Ba4 h6 11. Rhe1 e6 12. Bg5 Qxh2 13. Bf4 1-0

