[Event "Leiden op-A 9th"]
[Site "Leiden"]
[Date "2015.07.19"]
[Round "3"]
[White "Roozendaal, Marc"]
[Black "Sorensen, Bent"]
[Result "0-1"]
[ECO "E24"]
[WhiteElo "1989"]
[BlackElo "2217"]
[PlyCount "56"]
[EventDate "2015.07.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 167 Extra"]
[Source "ChessBase"]
[SourceDate "2015.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2015.09.14"]
[SourceQuality "1"]

1. d4 e6 2. c4 Bb4+ 3. Nc3 c5 4. a3 Bxc3+ 5. bxc3 Nf6 6. Qc2 Nc6 7. Nf3 d6 8. Bf4 Nh5 9. Be3 Qa5 10. Nd2 cxd4 11. cxd4 f5 12. g4 fxg4 13. Bg2 0-0 14. 0-0 e5 15. d5 Ne7 16. c5 Nf5 17. cxd6 Nxd6 18. Bc5 Bf5 19. e4 Rac8 20. Nb3 Qa4 21. Qb2 Bxe4 22. f3 gxf3 23. Qxe5 Qxb3 24. Qe6+ Kh8 25. Qxd6 Rfd8 26. Qe7 Re8 27. Qg5 Qxd5 28. Be3 Qxg5 0-1

[Event "Leiden op-A 9th"]
[Site "Leiden"]
[Date "2015.07.18"]
[Round "2"]
[White "Erwich, Frank"]
[Black "Roozendaal, Marc"]
[Result "1-0"]
[ECO "D42"]
[WhiteElo "2361"]
[BlackElo "1989"]
[PlyCount "89"]
[EventDate "2015.07.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 167 Extra"]
[Source "ChessBase"]
[SourceDate "2015.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2015.09.14"]
[SourceQuality "1"]

1. e4 c6 2. c4 d5 3. exd5 cxd5 4. cxd5 Nf6 5. Nc3 Nxd5 6. Nf3 Nc6 7. d4 e6 8. Bd3 Be7 9. 0-0 Bf6 10. Be4 Nce7 11. Qd3 Bd7 12. Ne5 Bxe5 13. dxe5 Nxc3 14. bxc3 Bc6 15. Bxc6+ bxc6 16. Qxd8+ Rxd8 17. Ba3 Nd5 18. Rac1 f6 19. Rfe1 fxe5 20. Rxe5 Kf7 21. g3 Rd7 22. c4 Nb6 23. Rc3 Kf6 24. Re4 e5 25. Rf3+ Ke6 26. Bb2 Rd1+ 27. Kg2 Nd7 28. Bxe5 Nxe5 29. Rfe3 Rhd8 30. Rxe5+ Kd6 31. Re7 a5 32. R3e5 Rc1 33. R5e6+ Kc5 34. Rxg7 Rxc4 35. Rxh7 Rd2 36. h4 Rxa2 37. h5 Kd5 38. Re1 Rcc2 39. Rf7 Rab2 40. h6 Rb8 41. h7 a4 42. Rf5+ Kd6 43. Rh1 Rh8 44. Rg5 Rf8 45. Rg8 1-0

[Event "Leiden SB-chA"]
[Site "Leiden"]
[Date "2015.06.30"]
[Round "7"]
[White "Roozendaal, Marc"]
[Black "Hellenberg, Jan Amerik"]
[Result "0-1"]
[ECO "D36"]
[WhiteElo "1951"]
[BlackElo "2014"]
[PlyCount "70"]
[EventDate "2015.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. Qc2 c6 7. e3 0-0 8. Bd3 h6 9. h4 Nbd7 10. Nf3 Ng4 11. 0-0-0 Nb6 12. Ne5 Nxe5 13. Bh7+ Kh8 14. dxe5 Nc4 15. Bf4 Qa5 16. Bd3 b5 17. e4 d4 18. Bxc4 dxc3 19. Bb3 cxb2+ 20. Kb1 c5 21. Bd5 Be6 22. Qxb2 Rab8 23. Bd2 Qb6 24. Be3 b4 25. f4 Qb5 26. f5 Bxd5 27. exd5 Rfc8 28. d6 Bd8 29. Rd5 Qc4 30. Qb3 Qe4+ 31. Qd3 Qg4 32. Rxc5 Rxc5 33. Bxc5 Rc8 34. Rc1 Qf4 35. d7 Rc7 0-1

[Event "Leiden SB-chA"]
[Site "Leiden"]
[Date "2015.06.24"]
[Round "6"]
[White "Van der Scheer, Henk"]
[Black "Roozendaal, Marc"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "1916"]
[BlackElo "1951"]
[PlyCount "49"]
[EventDate "2015.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. Bg5 h6 5. Bxf6 Qxf6 6. e3 Bb7 7. Be2 d6 8. 0-0 Be7 9. Nc3 g5 10. d5 e5 11. Nd2 0-0 12. f4 exf4 13. exf4 Qg7 14. fxg5 hxg5 15. Bg4 Na6 16. Nde4 Bc8 17. Ng3 f5 18. Bxf5 Nc5 19. Qh5 Qh8 20. Qg6+ Qg7 21. Qxg7+ Kxg7 22. Bxc8 Rf4 23. Rxf4 gxf4 24. Nf5+ Kf6 25. Nxe7 1-0

[Event "Leiden SB-chA"]
[Site "Leiden"]
[Date "2015.06.16"]
[Round "5"]
[White "Roozendaal, Marc"]
[Black "Noordkamp, Wouter"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "1951"]
[BlackElo "1970"]
[PlyCount "71"]
[EventDate "2015.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. a3 Bxc3+ 6. Qxc3 Ne4 7. Qd3 f5 8. Nf3 b6 9. h4 Bb7 10. Ng5 Qe7 11. Bf4 d6 12. Nxe4 Bxe4 13. Qc3 Nd7 14. f3 Bb7 15. 0-0-0 e5 16. Bg5 Qe8 17. d5 f4 18. h5 h6 19. Bh4 Qxh5 20. g4 Qe8 21. g5 hxg5 22. Bxg5 Bc8 23. Bh3 Nf6 24. Bxc8 Rxc8 25. Qc2 Kf7 26. Rdg1 c6 27. dxc6 Qxc6 28. b3 Ke6 29. Bxf6 gxf6 30. Rg7 Rc7 31. Rxc7 Qxc7 32. Qd3 Qc5 33. Kb2 Rf7 34. b4 Qd4+ 35. Qxd4 exd4 36. Kc2 1/2-1/2

[Event "Leiden SB-chA"]
[Site "Leiden"]
[Date "2015.06.09"]
[Round "4"]
[White "Roozendaal, Marc"]
[Black "Aalders, Peter"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "1951"]
[BlackElo "1907"]
[PlyCount "70"]
[EventDate "2015.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Qb3 Nc6 6. e3 Bf5 7. Qxb7 Bd7 8. Nb5 Rc8 9. f3 e5 10. Kf2 exd4 11. exd4 Be7 12. Bf4 0-0 13. Bc7 Rxc7 14. Qxc7 Qxc7 15. Nxc7 Nxd4 16. Bd3 Rc8 17. Na6 Bb5 18. Bxb5 Nxb5 19. Re1 Bd6 20. a3 Nd4 21. Ne2 Rc2 22. Ke3 Nf5+ 23. Kd3 Rxb2 24. g4 Rb3+ 25. Nc3 d4 26. gxf5 Rxc3+ 27. Kxd4 Rxa3 28. Nc5 Rxf3 29. Ne4 Rxf5 30. Nxf6+ gxf6 31. Re8+ Kg7 32. h4 Bc5+ 33. Ke4 Re5+ 34. Rxe5 fxe5 35. Kxe5 Kg6 1-0

[Event "Leiden SB-chA"]
[Site "Leiden"]
[Date "2015.05.26"]
[Round "2"]
[White "Coene, Igor"]
[Black "Roozendaal, Marc"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2203"]
[BlackElo "1951"]
[PlyCount "87"]
[EventDate "2015.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 e6 3. c4 Be7 4. Nc3 Nf6 5. Bf4 c6 6. e3 Nbd7 7. Be2 Nh5 8. Bg3 Nxg3 9. hxg3 Bd6 10. Qc2 g6 11. 0-0-0 a6 12. e4 dxc4 13. Bxc4 b5 14. Bd3 b4 15. Ne2 Bb7 16. e5 Be7 17. Nf4 Nf8 18. Kb1 Qb6 19. Qa4 0-0-0 20. Rc1 Kb8 21. Be4 Qb5 22. Qc2 g5 23. Bd3 Qb6 24. Ne2 h5 25. Nd2 Nd7 26. Ne4 a5 27. f4 gxf4 28. gxf4 Rc8 29. Nc5 Nxc5 30. dxc5 Qc7 31. Ng3 h4 32. Ne4 Rcg8 33. Qf2 Rg7 34. g3 Rd8 35. Be2 hxg3 36. Nxg3 Qd7 37. Rcd1 Qe8 38. Ne4 Rc8 39. Nd6 Bxd6 40. cxd6 Qd7 41. Qc5 Rgg8 42. Rh7 Rgf8 43. Rg1 Rg8 44. Rgh1 1-0

[Event "Leiden SB-chA"]
[Site "Leiden"]
[Date "2015.05.19"]
[Round "1"]
[White "Van Ketel, Raoul"]
[Black "Roozendaal, Marc"]
[Result "1-0"]
[ECO "E25"]
[WhiteElo "2264"]
[BlackElo "1951"]
[PlyCount "100"]
[EventDate "2015.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. dxc5 Qa5 9. e4 Nf6 10. Be3 Nc6 11. Qb3 Nd7 12. Bb5 a6 13. Bxc6 bxc6 14. Qb4 Qc7 15. Nh3 0-0 16. 0-0 e5 17. Rfd1 Nf6 18. Qb6 Ra7 19. Rd6 Bd7 20. Rb1 Rc8 21. Nf2 Ne8 22. Rd2 Be6 23. Qxc7 Nxc7 24. Rb6 Ne8 25. Nd3 f6 26. Nb4 Bd7 27. Nxa6 Kf7 28. Nb8 Ke7 29. a4 Rd8 30. Rxd7+ Rdxd7 31. Nxc6+ Kf7 32. Nxa7 Rxa7 33. Rb4 Ke6 34. Kf2 Rc7 35. Ke2 Rc6 36. Kd3 Nc7 37. Kc4 Kd7 38. Rb6 Na6 39. g3 h6 40. f4 exf4 41. gxf4 Nc7 42. f5 Na6 43. Bf2 Nc7 44. a5 Na6 45. h4 Nc7 46. Bg3 Na6 47. Bd6 Nc7 48. Rb7 Kc8 49. Rxc7+ Rxc7 50. Bxc7 Kxc7 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2002.07.02"]
[Round "7"]
[White "Roozendaal, Marc"]
[Black "Van der Hoeven, Peter"]
[Result "1-0"]
[ECO "A38"]
[WhiteElo "1914"]
[BlackElo "1649"]
[PlyCount "93"]
[EventDate "2002.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. c4 c5 6. Nc3 Nc6 7. e3 e6 8. d4 cxd4 9. Nxd4 Nxd4 10. exd4 d5 11. c5 Bd7 12. b4 a6 13. Bf4 b5 14. a4 Bc6 15. Bd6 Re8 16. axb5 axb5 17. Qd3 Qd7 18. f4 Qb7 19. Rfb1 Ne4 20. Nxe4 dxe4 21. Qe3 Rxa1 22. Rxa1 Ra8 23. Rb1 Ra4 24. Be5 Bf8 25. h3 f5 26. Kh2 Bd5 27. g4 Qa8 28. Rb2 Ra3 29. Qe1 Qa4 30. Qh4 Qa7 31. gxf5 exf5 32. Qf6 Qg7 33. Qxg7+ Bxg7 34. Bf1 Bc6 35. Bxg7 Kxg7 36. d5 Bxd5 37. Bxb5 Rc3 38. Rd2 Be6 39. Rd6 Kf6 40. Bd7 Ke7 41. Bxe6 Rd3 42. Rxd3 exd3 43. Bb3 h6 44. h4 Kd7 45. b5 d2 46. Bd1 Kc7 47. Kg3 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2002.06.18"]
[Round "5"]
[White "Pols, Leendert"]
[Black "Roozendaal, Marc"]
[Result "1-0"]
[ECO "D17"]
[WhiteElo "1934"]
[BlackElo "1914"]
[PlyCount "99"]
[EventDate "2002.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 c6 3. Bf4 Bf5 4. c4 Nf6 5. Nc3 dxc4 6. a4 Nd5 7. Bd2 Nxc3 8. bxc3 b5 9. Nh4 Bc8 10. Qb1 Qd7 11. e4 e6 12. Nf3 Bd6 13. e5 Be7 14. Bg5 a6 15. h4 Bb7 16. Bxe7 Qxe7 17. Ng5 f5 18. Be2 g6 19. Qc1 h6 20. Nf3 Nd7 21. Rb1 Nb6 22. a5 Nd5 23. g3 Kf7 24. Qb2 Rab8 25. Qd2 Qa3 26. Rc1 Qxa5 27. 0-0 Qd8 28. Ne1 Kg7 29. Ng2 Qe7 30. Bf3 g5 31. Bxd5 cxd5 32. Ra1 Bc8 33. Rfb1 Rb6 34. Rb2 Bd7 35. Rba2 Ra8 36. hxg5 hxg5 37. Ne1 Bc8 38. Nf3 g4 39. Nh4 Bb7 40. Kf1 Rh8 41. Ng2 b4 42. cxb4 Rxb4 43. Kg1 Rb3 44. Nf4 Bc8 45. Kg2 Rh6 46. Ra5 Qb4 47. Qc1 Rc3 48. Qe1 Rb3 49. Qc1 Qe7 50. Rc5 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2002.06.11"]
[Round "4"]
[White "Brouwer, Pieter"]
[Black "Roozendaal, Marc"]
[Result "1/2-1/2"]
[ECO "B01"]
[BlackElo "1914"]
[PlyCount "71"]
[EventDate "2002.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 Nc6 2. d4 d5 3. exd5 Qxd5 4. Nf3 e5 5. dxe5 Qxd1+ 6. Kxd1 Bg4 7. c3 0-0-0+ 8. Kc2 Bf5+ 9. Kb3 Na5+ 10. Ka4 b6 11. b4 Nb7 12. Kb3 Rd1 13. Nbd2 h6 14. h3 c5 15. Rh2 cxb4 16. cxb4 a5 17. a3 a4+ 18. Kb2 g5 19. Be2 Rxd2+ 20. Bxd2 Bg7 21. Rc1+ Kb8 22. Bc3 Ne7 23. Bc4 Bg6 24. Rhh1 Nd8 25. Rhd1 Be4 26. Ne1 Ndc6 27. g3 Nxe5 28. Bb5 Bc6 29. Bxc6 N7xc6 30. Bxe5+ Nxe5 31. Kb1 Rc8 32. Rxc8+ Kxc8 33. b5 Nd7 34. Nd3 Bf8 35. Kb2 Bg7+ 36. Kb1 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2002.05.21"]
[Round "1"]
[White "Roozendaal, Marc"]
[Black "Kamps, JW."]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "1914"]
[BlackElo "2050"]
[PlyCount "78"]
[EventDate "2002.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 d6 2. d4 Nf6 3. Nc3 g6 4. e4 Bg7 5. h3 0-0 6. Be3 Na6 7. Bc4 c5 8. e5 Nd7 9. dxc5 Qa5 10. Bxa6 bxa6 11. exd6 exd6 12. cxd6 Rb8 13. 0-0 Rxb2 14. Nd5 Bb7 15. Ne7+ Kh8 16. Bd4 Bxf3 17. gxf3 Qg5+ 18. Kh1 Qh4 19. Bxg7+ Kxg7 20. f4 Qxf4 21. Qd3 Rb5 22. c4 Rh5 23. Nd5 Qxd6 24. f4 Nb6 25. Qc3+ f6 26. Nxb6 axb6 27. Kh2 Re8 28. Rae1 Rxe1 29. Qxe1 Kf7 30. Qc3 Rc5 31. Qf3 Rxc4 32. h4 Rc2+ 33. Kh1 Qc6 34. Qxc6 Rxc6 35. Rb1 b5 36. Rb2 Rc4 37. Rf2 Ke6 38. f5+ gxf5 39. Rh2 Rc1+ 0-1

