[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2010.06.22"]
[Round "6"]
[White "Siero, Paul"]
[Black "Kat, Rudolf"]
[Result "0-1"]
[ECO "D41"]
[WhiteElo "1158"]
[BlackElo "1895"]
[PlyCount "86"]
[EventDate "2010.05.18"]
[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. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Be7 7. cxd5 Nxd5 8. Bd2 Nc6 9. a3 0-0 10. Bd3 Bf6 11. Be3 Nxe3 12. fxe3 g6 13. 0-0 Bg7 14. Bc4 Ne7 15. Kh1 Nd5 16. Nxd5 exd5 17. Ba2 Be6 18. b4 Rc8 19. Rc1 Qe7 20. Qd3 Bf5 21. Qd2 Be4 22. Rc5 b6 23. Rxc8 Rxc8 24. Bb1 Bxb1 25. Rxb1 Qe4 26. Rc1 Rxc1+ 27. Qxc1 Bh6 28. Qc7 Bxe3 29. Qb8+ Kg7 30. Qe5+ Qxe5 31. Nxe5 Bxd4 32. Nd3 Kf6 33. g3 Kf5 34. Kg2 Ke4 35. Nf4 Be3 36. Ne2 d4 37. g4 Bf4 38. h3 Ke3 39. Kf1 Be5 40. Ke1 d3 41. Ng1 Bh2 42. Nf3 Kxf3 43. Kd2 Ke4 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2010.06.15"]
[Round "5"]
[White "Kors, Hans"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "C58"]
[WhiteElo "1852"]
[BlackElo "1158"]
[PlyCount "63"]
[EventDate "2010.05.18"]
[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 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 Rb8 9. Bd3 h6 10. Ne4 Nxe4 11. Bxe4 Qd6 12. 0-0 Be7 13. Nc3 0-0 14. Bf5 Qf6 15. Bg4 Qxf3 16. Bxf3 Bd7 17. b3 Nb7 18. Bb2 f6 19. Rad1 a5 20. d4 exd4 21. Rxd4 Rbd8 22. Rfd1 Bd6 23. Na4 c5 24. Nxc5 Nxc5 25. Rxd6 Rfe8 26. h3 Re7 27. Ba3 Ne6 28. R6d2 Rf7 29. Bh5 g6 30. Bxg6 Kg7 31. Bf5 Nf4 32. Rxd7 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2010.06.08"]
[Round "4"]
[White "Faydi, Jonathan J"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2117"]
[BlackElo "1158"]
[PlyCount "63"]
[EventDate "2010.05.18"]
[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. Nf3 Nf6 3. Bf4 e6 4. e3 Bd6 5. Bg3 b6 6. c3 0-0 7. Nbd2 c5 8. Ne5 cxd4 9. cxd4 a6 10. Bd3 Nbd7 11. Nc6 Qc7 12. Rc1 Nb8 13. Ne5 Qe7 14. Bh4 h6 15. g4 g5 16. Bg3 Bb4 17. h4 Bxd2+ 18. Qxd2 Ne4 19. Bxe4 dxe4 20. hxg5 Qxg5 21. Bf4 Qf6 22. Rxh6 Qg7 23. Rc7 a5 24. g5 Na6 25. Ng4 Nxc7 26. Nf6+ Qxf6 27. gxf6 Nd5 28. f3 exf3 29. Rh8+ Kxh8 30. Qh2+ Kg8 31. Qg3+ Kh7 32. Qg7# 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2010.06.01"]
[Round "3"]
[White "Siero, Paul"]
[Black "Thissen, Thomas"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1158"]
[BlackElo "1988"]
[PlyCount "74"]
[EventDate "2010.05.18"]
[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 d5 2. exd5 Nf6 3. Nf3 Qxd5 4. Nc3 Qa5 5. d4 Bg4 6. Bd2 e6 7. Ne4 Qb6 8. Nxf6+ gxf6 9. c3 c5 10. Be2 Nc6 11. Qb3 Qxb3 12. axb3 cxd4 13. Nxd4 Nxd4 14. cxd4 Bxe2 15. Kxe2 Bd6 16. g3 h5 17. h4 Kd7 18. Rhc1 a6 19. b4 Rac8 20. Ra5 Rxc1 21. Bxc1 Bxb4 22. Ra4 a5 23. b3 b5 24. Ra2 Rc8 25. Bd2 Bxd2 26. Kxd2 Ra8 27. b4 a4 28. Ra3 Rc8 29. Rc3 Rxc3 30. Kxc3 Kc6 31. f3 Kd5 32. g4 Kd6 33. gxh5 Ke7 34. h6 Kf8 35. f4 Kg8 36. f5 Kh7 37. fxe6 fxe6 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2009.06.02"]
[Round "3"]
[White "Siero, Paul"]
[Black "Zwinkels, Wim"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "1179"]
[BlackElo "1838"]
[PlyCount "74"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be7 8. f3 Be6 9. Qd2 Nbd7 10. g4 b5 11. g5 b4 12. Nd5 Nxd5 13. exd5 Bf5 14. 0-0-0 a5 15. Bd3 Bxd3 16. Qxd3 Bxg5 17. Kb1 Bxe3 18. Qxe3 0-0 19. h4 Qc7 20. Rhg1 Rfc8 21. Rd2 a4 22. Qh6 g6 23. Nc1 a3 24. Nb3 axb2 25. Kxb2 Qa7 26. Ra1 Qa3+ 27. Kb1 Nb6 28. Rd3 Na4 29. Qc1 Nc3+ 30. Rxc3 Qxc1+ 31. Kxc1 Rxc3 32. Kb2 Rxf3 33. Rg1 Rf2 34. h5 Rc8 35. hxg6 Rcxc2+ 36. Kb1 Rb2+ 37. Kc1 hxg6 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2008.06.24"]
[Round "6"]
[White "Siero, Paul"]
[Black "Rams, C."]
[Result "0-1"]
[ECO "C10"]
[WhiteElo "1210"]
[BlackElo "1679"]
[PlyCount "64"]
[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. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nc6 5. Nf3 Be7 6. Bb5 Qd5 7. Bxc6+ Qxc6 8. Qd3 Nf6 9. Nxf6+ Bxf6 10. 0-0 h6 11. h3 b6 12. Qc3 Qxc3 13. bxc3 Bb7 14. Ne5 Bxe5 15. dxe5 0-0-0 16. Be3 Be4 17. Rac1 Rd5 18. f3 Bh7 19. f4 Ra5 20. g4 Re8 21. g5 h5 22. c4 c5 23. c3 Rxa2 24. Ra1 Rxa1 25. Rxa1 a5 26. Kf2 Rd8 27. Ke1 Rd3 28. Bd2 Rxh3 29. Kf2 Rd3 30. Ke2 Bf5 31. Rh1 Rh3 32. Rxh3 Bxh3 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2008.06.17"]
[Round "5"]
[White "Wagemans, Ed"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "C78"]
[WhiteElo "1955"]
[BlackElo "1210"]
[PlyCount "99"]
[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. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Bc5 7. c3 d6 8. d4 exd4 9. cxd4 Bb6 10. Re1 0-0 11. h3 Re8 12. Bg5 h6 13. Bh4 Na5 14. Nc3 c6 15. e5 dxe5 16. dxe5 Qxd1 17. Raxd1 Nd5 18. Nxd5 cxd5 19. Bxd5 Bb7 20. Bxb7 Nxb7 21. Nd4 Bxd4 22. Rxd4 Nc5 23. b4 Ne6 24. Rd7 g5 25. Bg3 Rad8 26. Red1 Kg7 27. h4 Rxd7 28. Rxd7 Nf4 29. Bxf4 gxf4 30. Rd6 Rxe5 31. Rxa6 Re1+ 32. Kh2 Re2 33. f3 Re5 34. g3 fxg3+ 35. Kxg3 f6 36. Rc6 Kf7 37. Kf4 Re2 38. Rc5 Rxa2 39. Rxb5 Rd2 40. Kg4 Kg6 41. h5+ Kf7 42. Kf5 Rd3 43. Rb7+ Ke8 44. Kxf6 Rxf3+ 45. Kg6 Kf8 46. Kxh6 Rf6+ 47. Kg5 Rd6 48. h6 Rd5+ 49. Kf4 Rd4+ 50. Ke5 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2008.06.10"]
[Round "4"]
[White "Siero, Paul"]
[Black "Oudshoorn, Arres"]
[Result "0-1"]
[ECO "B34"]
[WhiteElo "1210"]
[BlackElo "1815"]
[PlyCount "78"]
[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. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be3 Nf6 6. Nc3 Bg7 7. Be2 0-0 8. 0-0 d5 9. exd5 Nxd5 10. Nxc6 bxc6 11. Qd2 Nxe3 12. Qxe3 Qb6 13. Qxb6 axb6 14. Nd1 Rd8 15. c3 Be6 16. a3 Rd2 17. Bf3 Rc8 18. a4 Bb3 19. a5 bxa5 20. Rxa5 e5 21. Rc5 e4 22. Bxe4 Rxd1 23. g3 Kf8 24. Rxc6 Rxc6 25. Bxc6 Rxf1+ 26. Kxf1 Ke7 27. Ke2 Kd6 28. Bb7 Kc5 29. Kd2 Bh6+ 30. Kd3 Bc1 31. f4 Bxb2 32. g4 Bc1 33. f5 Bd5 34. fxg6 hxg6 35. Bc8 g5 36. Bf5 Bf4 37. h3 Bg2 38. Be4 Bxh3 39. Bf3 Bf1+ 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2008.05.27"]
[Round "2"]
[White "Landsheer, Jos"]
[Black "Siero, Paul"]
[Result "0-1"]
[ECO "C44"]
[WhiteElo "1704"]
[BlackElo "1210"]
[PlyCount "70"]
[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. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 dxc3 5. Nxc3 Bb4 6. Bc4 Bxc3+ 7. bxc3 Nf6 8. Bg5 0-0 9. 0-0 h6 10. Bh4 d6 11. Re1 Qe7 12. Nd4 Be6 13. Nxe6 fxe6 14. f4 Na5 15. Bd3 d5 16. e5 Qc5+ 17. Bf2 Qxc3 18. Bd4 Qxd4+ 19. Kh1 Ne4 20. Bxe4 Qxd1 21. Raxd1 dxe4 22. Rxe4 Rad8 23. Red4 Rxd4 24. Rxd4 c5 25. Ra4 b6 26. g3 c4 27. Ra3 Rc8 28. Rc3 b5 29. Kg2 b4 30. Rc2 b3 31. axb3 Nxb3 32. Kf2 c3 33. Ke3 Na1 34. Rc1 c2 35. g4 Nb3 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2008.05.20"]
[Round "1"]
[White "Siero, Paul"]
[Black "Kubbenga, Michael"]
[Result "0-1"]
[ECO "C82"]
[WhiteElo "1210"]
[BlackElo "1936"]
[PlyCount "38"]
[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. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 0-0 11. Nxe4 dxe4 12. Qxd8 Raxd8 13. Be3 Bxe3 14. Ne1 Bb6 15. Kh1 Nxe5 16. f4 Ng4 17. Bc2 Bc4 18. Nd3 exd3 19. Bd1 d2 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2007.06.26"]
[Round "7"]
[White "Siero, Paul"]
[Black "Cortenraad, Pierre"]
[Result "0-1"]
[ECO "C64"]
[WhiteElo "1160"]
[PlyCount "46"]
[EventDate "2007.05.15"]
[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 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 f5 5. exf5 Nf6 6. d3 0-0 7. 0-0 d5 8. Bxc6 bxc6 9. Nxe5 Bxf5 10. Re1 Bg4 11. Nxg4 Nxg4 12. d4 Qh4 13. h3 Nxf2 14. Qe2 Bd6 15. Be3 Qg3 16. Qxf2 Rxf2 17. Bxf2 Qh2+ 18. Kf1 Qh1+ 19. Bg1 Rf8+ 20. Ke2 Qxg2+ 21. Kd3 Qg3+ 22. Ke2 Re8+ 23. Be3 Qxe3+ 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2007.06.12"]
[Round "5"]
[White "Duijnisveld, Arnold"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "C24"]
[WhiteElo "1616"]
[BlackElo "1160"]
[PlyCount "89"]
[EventDate "2007.05.15"]
[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 e5 2. Bc4 Nf6 3. d3 c6 4. Bb3 d5 5. Bg5 Be7 6. Bxf6 Bxf6 7. Qh5 0-0 8. Nd2 g6 9. Qf3 Be6 10. 0-0-0 dxe4 11. Qxe4 Nd7 12. Bxe6 fxe6 13. Qg4 Qe7 14. h4 Bg7 15. Ne4 Nf6 16. Nxf6+ Qxf6 17. Nh3 Bh6+ 18. Ng5 Qf4+ 19. Qxf4 Rxf4 20. f3 Rd8 21. Kb1 Re8 22. Ne4 b5 23. Rdf1 Ref8 24. Nc5 R8f6 25. Re1 Bf8 26. Nd7 R6f5 27. Rxe5 Rxe5 28. Nxe5 c5 29. b3 Bg7 30. Nc6 a6 31. Nd8 e5 32. Ne6 Rb4 33. a3 Kf7 34. axb4 Kxe6 35. bxc5 b4 36. h5 Kd5 37. hxg6 hxg6 38. Rh7 Bf8 39. Ra7 Bxc5 40. Rxa6 Kd4 41. Rxg6 Kc3 42. Rf6 Bd4 43. Rf5 Kd2 44. g4 Ke3 45. g5 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2007.06.05"]
[Round "4"]
[White "Siero, Paul"]
[Black "Van Bezouw, Stein"]
[Result "0-1"]
[ECO "C92"]
[WhiteElo "1160"]
[BlackElo "1564"]
[PlyCount "49"]
[EventDate "2007.05.15"]
[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 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Be7 7. Re1 0-0 8. c3 d6 9. h3 h6 10. d4 Bb7 11. Nbd2 Re8 12. dxe5 Nxe5 13. a4 Nxf3+ 14. Qxf3 Bf8 15. axb5 axb5 16. Rb1 Re5 17. Bc2 Qe8 18. c4 bxc4 19. Nxc4 Bxe4 20. Bxe4 Rxe4 21. Ne3 Nd5 22. Bd2 Nxe3 23. Bxe3 d5 24. Red1 c6 25. g4 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2007.05.29"]
[Round "3"]
[White "Helfferich, Gert"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1012"]
[BlackElo "1160"]
[PlyCount "93"]
[EventDate "2007.05.15"]
[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 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 Bc5 5. 0-0 0-0 6. a3 a6 7. b4 b5 8. Bb3 Bb6 9. Nd5 Nxe4 10. Nxb6 cxb6 11. Bd5 Nf6 12. Bxc6 dxc6 13. Nxe5 Qd5 14. d4 c5 15. Bb2 cxb4 16. axb4 a5 17. Bc3 a4 18. Ra3 Be6 19. Bb2 Rac8 20. Rf3 Rcd8 21. c3 Ne4 22. Re3 f6 23. f3 Nxc3 24. Bxc3 fxe5 25. Rxe5 Qc4 26. Re3 Qb3 27. Qd2 Qc4 28. Rfe1 Rde8 29. f4 a3 30. f5 Bf7 31. d5 Rxe3 32. Rxe3 Bxd5 33. Rd3 Rd8 34. f6 gxf6 35. Bxf6 Qc6 36. Bxd8 Be4 37. Rxa3 Bxg2 38. Rg3+ Kf7 39. Rxg2 Qe4 40. Bxb6 Qb1+ 41. Kf2 Qf5+ 42. Kg1 Qb1+ 43. Kf2 Qf5+ 44. Ke1 Qe6+ 45. Re2 Qxb6 46. Qf4+ Kg6 47. Rg2+ 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2007.05.22"]
[Round "2"]
[White "Siero, Paul"]
[Black "Van den Bosse, Bart"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1160"]
[BlackElo "1727"]
[PlyCount "62"]
[EventDate "2007.05.15"]
[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 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Bc4 Nf6 5. d3 Bf5 6. Bd2 c6 7. Nd5 Qd8 8. Nxf6+ exf6 9. Qe2+ Qe7 10. Qxe7+ Bxe7 11. Nf3 0-0 12. h3 Re8 13. 0-0-0 b5 14. Bb3 a5 15. g4 Bd7 16. c3 a4 17. Bc2 c5 18. b3 Bc6 19. Rhg1 Bxf3 20. Rde1 Bc6 21. b4 cxb4 22. cxb4 a3 23. Bb3 Na6 24. d4 Nxb4 25. Bxb4 Bxb4 26. Rxe8+ Rxe8 27. d5 Bb7 28. Rd1 Re1 29. Rxe1 Bxe1 30. d6 Bxf2 31. d7 Bb6 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2007.05.15"]
[Round "1"]
[White "Serdijn Koster, Adinda"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "C78"]
[WhiteElo "1917"]
[BlackElo "1160"]
[PlyCount "69"]
[EventDate "2007.05.15"]
[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 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Bc5 7. c3 d6 8. d4 exd4 9. cxd4 Ba7 10. Bg5 0-0 11. e5 dxe5 12. d5 e4 13. dxc6 Qxd1 14. Bxd1 exf3 15. Bxf3 Bd4 16. Nc3 b4 17. Na4 Bg4 18. Bxf6 Bxf3 19. Bxd4 Bxc6 20. Nc5 a5 21. Be3 a4 22. Rfd1 Rfe8 23. Rac1 b3 24. axb3 axb3 25. Nxb3 Ba4 26. Rd3 Rac8 27. Nc5 Bb5 28. Rd2 c6 29. Rd7 Ra8 30. h3 f6 31. Nb7 Rab8 32. Nd6 Re5 33. Nxb5 Rexb5 34. Rxc6 Rxb2 35. Rcc7 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2006.06.27"]
[Round "7"]
[White "Heshusius, Hans"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1433"]
[BlackElo "1187"]
[PlyCount "85"]
[EventDate "2006.05.16"]
[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 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. Nc3 Na5 6. Bb3 Nxb3 7. cxb3 0-0 8. Nxe5 d6 9. Nf3 a6 10. h3 b5 11. Be3 b4 12. Ne2 Bd7 13. Rc1 c6 14. 0-0 a5 15. a4 h6 16. Qd2 c5 17. Ng3 Be6 18. Nf5 Bxf5 19. exf5 Kh7 20. g4 Nd5 21. Kh1 Nxe3 22. fxe3 g5 23. e4 Rc8 24. Kg2 f6 25. Rh1 d5 26. e5 fxe5 27. Nxe5 d4 28. Qe2 Bf6 29. Nc4 Re8 30. Qf2 Rc6 31. Rhe1 Qd5+ 32. Qf3 Qxf3+ 33. Kxf3 Re7 34. Rxe7+ Bxe7 35. Nxa5 Ra6 36. Nc4 h5 37. Re1 hxg4+ 38. Kxg4 Bd8 39. Re8 Bf6 40. Re6 Rxe6 41. fxe6 Kg7 42. a5 Kf8 43. a6 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2006.06.20"]
[Round "6"]
[White "Kuipers, Joris"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "D02"]
[BlackElo "1187"]
[PlyCount "93"]
[EventDate "2006.05.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. Bf4 Nc6 4. h3 e6 5. e3 a6 6. c3 b5 7. Nbd2 Bd6 8. Bxd6 Qxd6 9. Bd3 e5 10. dxe5 Nxe5 11. Nxe5 Qxe5 12. Nf3 Qd6 13. 0-0 0-0 14. Re1 Re8 15. Qc2 Ne4 16. Rad1 Qe7 17. Qe2 f5 18. Bc2 c6 19. Nd4 Bd7 20. f4 c5 21. Nf3 Ng3 22. Qf2 Ne4 23. Qh4 Qxh4 24. Nxh4 Be6 25. Nf3 Rad8 26. Ng5 d4 27. exd4 cxd4 28. Rxd4 Rxd4 29. cxd4 Bd5 30. Bb3 Bxb3 31. axb3 h6 32. Nxe4 Rxe4 33. Rxe4 fxe4 34. Kf2 Kf7 35. Ke3 g6 36. Kxe4 Ke6 37. b4 Kd6 38. g4 Ke6 39. f5+ gxf5+ 40. gxf5+ Kd6 41. f6 Ke6 42. f7 Kxf7 43. Kd5 Ke7 44. Kc6 Ke6 45. d5+ Ke7 46. Kc7 h5 47. d6+ 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2006.06.13"]
[Round "5"]
[White "Siero, Paul"]
[Black "Molsbergen, Chris"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "1187"]
[BlackElo "1516"]
[PlyCount "86"]
[EventDate "2006.05.16"]
[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 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 c5 7. dxc5 Bxc5 8. 0-0 0-0 9. Be3 Bxe3 10. fxe3 Qb6 11. Qe2 Qxb2 12. Nbd2 f5 13. c4 dxc4 14. Bxc4+ Kh8 15. Nxe4 Qxe2 16. Bxe2 fxe4 17. Nd4 Rf6 18. Rac1 Na6 19. Rxf6 gxf6 20. Rf1 Kg7 21. g4 Nb4 22. Nf5+ Bxf5 23. gxf5 Nd5 24. Rc1 Nxe3 25. Rc7+ Kh6 26. Rxb7 Nxf5 27. Rb5 Rg8+ 28. Kh1 Kg5 29. Rb1 Kf4 30. Rf1+ Ke5 31. Re1 Nd6 32. a4 f5 33. Rc1 Rg7 34. Rc5+ Kd4 35. Rc6 Kd5 36. Ra6 f4 37. Ra5+ Kd4 38. Ra6 Ke3 39. Rxd6 Kxe2 40. Rd4 Kf2 41. Rd2+ Kf3 42. Rd1 Rg2 43. Rf1+ Rf2 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2006.06.06"]
[Round "4"]
[White "Zwinkels, Wim"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "C29"]
[WhiteElo "1910"]
[BlackElo "1187"]
[PlyCount "31"]
[EventDate "2006.05.16"]
[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 e5 2. Nc3 Nf6 3. f4 Nc6 4. fxe5 Nxe5 5. d4 Ng6 6. e5 Ne4 7. Nxe4 Qh4+ 8. Ng3 Bb4+ 9. c3 Ba5 10. Nf3 Qg4 11. Bc4 c6 12. 0-0 b5 13. Bxf7+ Kxf7 14. Ng5+ Kg8 15. Qxg4 d6 16. Qf3 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2006.05.30"]
[Round "3"]
[White "Siero, Paul"]
[Black "Hellenberg, Jan Amerik"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1187"]
[BlackElo "1948"]
[PlyCount "78"]
[EventDate "2006.05.16"]
[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 g6 2. d4 Bg7 3. Nc3 d6 4. Bg5 Nd7 5. Qd2 a6 6. f4 c5 7. dxc5 Nxc5 8. 0-0-0 Qb6 9. Bd3 Nf6 10. Re1 Be6 11. f5 Bd7 12. Bh6 0-0 13. Bxg7 Kxg7 14. fxg6 fxg6 15. e5 dxe5 16. Rxe5 Qd6 17. Nf3 Nxd3+ 18. Qxd3 Bf5 19. Qxd6 exd6 20. Re7+ Rf7 21. Rxf7+ Kxf7 22. Re1 h6 23. h3 Re8 24. Rd1 Rd8 25. g4 Be4 26. Nxe4 Nxe4 27. Ne5+ Kf6 28. Rd5 Ke6 29. c4 Nf6 30. Rd3 Kxe5 31. c5 Rc8 32. b4 dxc5 33. Rc3 Nd5 34. Rxc5 Rxc5+ 35. bxc5 g5 36. Kc2 Nf4 37. Kc3 Nxh3 38. Kc4 Nf2 39. a4 Nxg4 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2006.05.16"]
[Round "1"]
[White "Volders, Wessel"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "C56"]
[WhiteElo "1899"]
[BlackElo "1187"]
[PlyCount "41"]
[EventDate "2006.05.16"]
[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 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qd6 9. Nxe4 Qe7 10. Bg5 Qe6 11. Ng3 Bc5 12. Qd3 0-0 13. Rxe6 Bxe6 14. a3 a5 15. Ne4 Ba7 16. Bf4 f5 17. Neg5 Bd5 18. c4 Bxf3 19. Qxf3 Rad8 20. Qh5 h6 21. Ne6 1-0

[Event "Leiden SB-chB"]
[Site "Leiden"]
[Date "2004.07.07"]
[Round "7"]
[White "Siero, Paul"]
[Black "Hoogenboom, Paul"]
[Result "0-1"]
[ECO "C66"]
[WhiteElo "1162"]
[PlyCount "108"]
[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 e5 2. Nf3 Nc6 3. Bb5 d6 4. Bxc6+ bxc6 5. 0-0 Nf6 6. d4 exd4 7. Nxd4 c5 8. Nf3 Be7 9. Re1 0-0 10. c4 Bb7 11. Nc3 Re8 12. Nd5 c6 13. Nxe7+ Qxe7 14. e5 dxe5 15. Rxe5 Rad8 16. Bd2 Qd6 17. Rxe8+ Nxe8 18. b3 Bc8 19. h3 Bf5 20. Qe1 Nf6 21. b4 Re8 22. Be3 cxb4 23. Rd1 Qb8 24. Qd2 Ne4 25. Bxa7 Qxa7 26. Qxb4 Qxf2+ 27. Kh2 Qg3+ 28. Kg1 Bxh3 29. Qb2 Bg4 30. Qe2 Kf8 31. Qe1 Qxe1+ 32. Rxe1 Nc3 33. Ra1 Ra8 34. a3 Bxf3 35. gxf3 Ra4 36. c5 Rc4 37. Kf2 Rxc5 38. a4 Ra5 39. Rc1 c5 40. Rxc3 Rxa4 41. Rxc5 Ke7 42. Ke3 h6 43. f4 g6 44. f5 g5 45. Rc7+ Kf6 46. Rc6+ Kxf5 47. Rxh6 Rh4 48. Rxh4 gxh4 49. Kf2 Kg4 50. Kg2 f5 51. Kh2 Kf3 52. Kh3 f4 53. Kxh4 Kg2 54. Kg4 f3 0-1

[Event "Haarlem Nova College op 3rd"]
[Site "Haarlem"]
[Date "2004.07.04"]
[Round "5"]
[White "Bongenaar, Louis"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "C78"]
[PlyCount "49"]
[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. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Bc5 6. Re1 d6 7. c3 0-0 8. d4 exd4 9. cxd4 Ba7 10. h3 b5 11. Bc2 Re8 12. a3 Bf5 13. exf5 Rxe1+ 14. Qxe1 Nxd4 15. Nxd4 Bxd4 16. Nc3 c6 17. Bg5 h6 18. Bh4 g5 19. fxg6 Qe8 20. Qd2 Qe5 21. Re1 Qc5 22. Bxf6 Bxf6 23. Ne4 Qd4 24. Nxf6+ Kf8 25. Qxh6# 1-0

[Event "Haarlem Nova College op 3rd"]
[Site "Haarlem"]
[Date "2004.07.04"]
[Round "6"]
[White "Siero, Paul"]
[Black "Keizers, Paul"]
[Result "1/2-1/2"]
[ECO "C87"]
[PlyCount "80"]
[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. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 d6 6. Bxc6+ bxc6 7. Re1 Be7 8. d4 exd4 9. Nxd4 Bb7 10. Nc3 0-0 11. Nf5 Re8 12. e5 Nd7 13. e6 Nf6 14. exf7+ Kxf7 15. Bg5 Qd7 16. Nxe7 Rxe7 17. h3 Rxe1+ 18. Qxe1 Re8 19. Qd1 Qe6 20. Bxf6 Qxf6 21. Qh5+ Qg6 22. Qf3+ Kg8 23. Rc1 d5 24. Ne2 Rf8 25. Qg3 Qxg3 26. Nxg3 c5 27. c4 d4 28. Rd1 g6 29. Ne2 Rd8 30. Nf4 Rd6 31. a3 g5 32. Nd3 Rc6 33. g3 a5 34. b4 cxb4 35. axb4 axb4 36. Nxb4 Rxc4 37. Nd3 c5 38. f4 gxf4 39. gxf4 Be4 40. Ne5 Rc3 1/2-1/2

[Event "Haarlem Nova College op 3rd"]
[Site "Haarlem"]
[Date "2004.07.03"]
[Round "4"]
[White "Fasel, Ton"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "A21"]
[PlyCount "67"]
[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. c4 e5 2. Nc3 Nf6 3. g3 Bb4 4. Bg2 Bxc3 5. bxc3 0-0 6. d4 d6 7. e3 c5 8. Ne2 Nbd7 9. 0-0 Rb8 10. a4 a5 11. Qb3 b6 12. Rd1 Re8 13. Ba3 Bb7 14. Bxb7 Rxb7 15. dxc5 Qc7 16. cxd6 Nc5 17. dxc7 Nxb3 18. Rab1 Rxc7 19. Rxb3 Rxc4 20. Rxb6 Rxa4 21. Bd6 g6 22. Rb8 Rxb8 23. Bxb8 Re4 24. Ra1 a4 25. Bd6 Nd7 26. Bb4 Nb6 27. Rd1 Nc4 28. Rd8+ Kg7 29. Ra8 Nb2 30. Bf8+ Kf6 31. Ra6+ Kg5 32. Ba3 Nd3 33. Kf1 f5 34. Rd6 1-0

[Event "Haarlem Nova College op 3rd"]
[Site "Haarlem"]
[Date "2004.07.03"]
[Round "3"]
[White "Siero, Paul"]
[Black "Van Duijkeren, Gerben"]
[Result "1/2-1/2"]
[ECO "B45"]
[PlyCount "75"]
[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. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Bb4 6. a3 Ba5 7. Bb5 Nge7 8. Bxc6 bxc6 9. 0-0 d5 10. Qg4 Ng6 11. Nxc6 Qc7 12. Nxa5 Qxa5 13. exd5 exd5 14. Qd4 Be6 15. b4 Qd8 16. Re1 0-0 17. Bb2 Qf6 18. Qxf6 gxf6 19. Nb5 Rfc8 20. Rac1 Bd7 21. Nd6 Rc6 22. Nb7 Rb8 23. Na5 Rd6 24. c4 dxc4 25. Nxc4 Rc6 26. Red1 Rbc8 27. Rxd7 Rxc4 28. Rcd1 Nf8 29. R7d4 Rc2 30. Rg4+ Ng6 31. Bxf6 Re2 32. Kf1 Rce8 33. Bc3 Rc2 34. Re1 Rc8 35. Bd4 R2c4 36. Rge4 Nf8 37. Rg4+ Ng6 38. Rge4 1/2-1/2

[Event "Leiden SB-chB"]
[Site "Leiden"]
[Date "2004.06.09"]
[Round "6"]
[White "Bingen, Stanley"]
[Black "Siero, Paul"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "1219"]
[BlackElo "1162"]
[PlyCount "110"]
[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 e5 2. Bc4 Nf6 3. Nf3 Nxe4 4. Nxe5 Qe7 5. Bxf7+ Kd8 6. d4 Nc6 7. Nxc6+ bxc6 8. Bh5 Nc3+ 9. Qe2 Nxe2 10. Bxe2 Ba6 11. Be3 Bxe2 12. Kxe2 Kc8 13. Rd1 g6 14. Kf1 Bg7 15. Re1 Qd6 16. f4 Bxd4 17. Rd1 Bxb2 18. Rxd6 cxd6 19. Bd4 Bxd4 20. c3 Bf6 21. a4 a5 22. Ra3 Rb8 23. Nd2 Bxc3 24. Rxc3 Rf8 25. Rf3 Rb4 26. g3 Rxa4 27. h4 Ra1+ 28. Kg2 Ra2 29. Rd3 Re8 30. Kf3 d5 31. Kg4 Rc2 32. Kg5 a4 33. Nb1 Rb2 34. Nc3 Rb3 35. Kh6 d4 36. Rxd4 Rxc3 37. Rxa4 Kc7 38. g4 Rh3 39. Kg5 c5 40. h5 gxh5 41. gxh5 Kd6 42. f5 h6+ 43. Kg4 Rh1 44. Ra6+ Ke5 45. Rxh6 Rg1+ 46. Kh4 Kxf5 47. Kh3 c4 48. Kh2 Rg4 49. Rd6 Re2+ 50. Kh3 Re3+ 51. Kh2 Kg5 52. Rg6+ Kh4 53. Rxg4+ Kxg4 54. h6 Rh3+ 55. Kg2 Rxh6 0-1

[Event "Leiden SB-chB"]
[Site "Leiden"]
[Date "2004.06.09"]
[Round "4"]
[White "Siero, Paul"]
[Black "Duijnisveld, Arnold"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "1162"]
[BlackElo "1532"]
[PlyCount "70"]
[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 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nc6 6. 0-0 Nxd4 7. c3 Nc6 8. b4 Nf6 9. Re1 Qc7 10. Qe2 d6 11. Bg5 Be7 12. f4 e5 13. f5 Bd7 14. Nd2 b5 15. a4 0-0 16. axb5 axb5 17. Bxb5 Na7 18. c4 Nxb5 19. cxb5 Qb6+ 20. Be3 Qxb5 21. Qxb5 Bxb5 22. Rac1 Rfc8 23. Rb1 Bd3 24. Rb3 Bc2 25. Rb2 Nxe4 26. b5 Nxd2 27. Bxd2 Bxf5 28. b6 Rab8 29. b7 Rc7 30. Ra1 Rcxb7 31. Rxb7 Rxb7 32. Ra8+ Bf8 33. Ba5 Rb1+ 34. Kf2 Rc1 35. Bd8 Rc8 0-1

[Event "Leiden SB-chB"]
[Site "Leiden"]
[Date "2004.06.02"]
[Round "3"]
[White "Lim, Danny"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1507"]
[BlackElo "1162"]
[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 e5 2. Bc4 Nf6 3. d3 Be7 4. Nf3 Nc6 5. Nc3 Bb4 6. Bd2 0-0 7. Nd5 Bxd2+ 8. Qxd2 d6 9. Qg5 Ng4 10. Qxd8 Rxd8 11. Nxc7 Rb8 12. Ng5 Rf8 13. Nb5 Nd4 14. Nxd4 exd4 15. Nf3 b5 16. Bd5 Be6 17. 0-0 Rbc8 18. Nxd4 Bd7 19. Nf5 Rxc2 20. b4 Rb2 21. Rab1 Rd2 22. h3 Ne5 23. Rfd1 Rxd3 24. Rxd3 Nxd3 25. Nxd6 g6 26. Rb3 Nf4 27. Ra3 Nxd5 28. exd5 Ra8 29. Kf1 f5 30. Ke2 Kg7 31. Re3 Kf6 32. Kd3 a5 33. a3 axb4 34. axb4 Ra3+ 35. Kd4 Rxe3 36. fxe3 g5 37. Kc5 Ke5 38. Nxb5 Ke4 39. Nd6+ Kxe3 40. b5 f4 41. b6 Bxh3 42. gxh3 f3 43. Nf5+ Kf4 44. b7 f2 45. b8Q+ Kf3 46. Ng3 Kg2 47. Qe5 h6 48. d6 1-0

[Event "Leiden SB-chB"]
[Site "Leiden"]
[Date "2004.05.19"]
[Round "1"]
[White "Siero, Paul"]
[Black "Landsheer, Jos"]
[Result "0-1"]
[ECO "C80"]
[WhiteElo "1162"]
[BlackElo "1655"]
[PlyCount "68"]
[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 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. Bxc6 dxc6 7. Nxe5 Be7 8. d3 Nf6 9. Re1 0-0 10. c3 Bf5 11. d4 Re8 12. Bg5 Nd5 13. Bxe7 Nxe7 14. Nd2 Qd5 15. Re2 f6 16. Nef3 Ng6 17. c4 Qd7 18. Re3 b5 19. c5 Nf4 20. Qb3+ Be6 21. Qa3 Nd5 22. Ree1 a5 23. b3 Nb4 24. Rxe6 Rxe6 25. Qc1 Rae8 26. a4 Nd3 27. Qc3 Nf4 28. Qc2 b4 29. Qc4 Kf8 30. Qa6 Ne2+ 31. Kf1 Nxd4 32. Qd3 Nxf3 33. Qxd7 Re1+ 34. Rxe1 Rxe1# 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2003.07.01"]
[Round "7"]
[White "Lim, Danny"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "C58"]
[BlackElo "1150"]
[PlyCount "57"]
[EventDate "2003.05.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. d3 Nxc4 7. dxc4 c5 8. 0-0 Be7 9. Qf3 0-0 10. Nc3 Ne8 11. Nge4 f6 12. Qg3 Bf5 13. Be3 Bxe4 14. Nxe4 Qb6 15. b3 a5 16. a4 Qc7 17. Qh3 Nd6 18. Nxc5 Rf7 19. Ne6 Qc8 20. Rad1 e4 21. f3 exf3 22. Rxf3 Nxc4 23. bxc4 Qxc4 24. Rd4 Qxc2 25. Rg4 g6 26. Qh5 Qd1+ 27. Rf1 Qe2 28. Rxg6+ Kh8 29. Qxe2 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2003.06.24"]
[Round "6"]
[White "Siero, Paul"]
[Black "Postma, Jan"]
[Result "0-1"]
[ECO "B46"]
[WhiteElo "1150"]
[BlackElo "1719"]
[PlyCount "54"]
[EventDate "2003.05.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Nc6 6. Be2 Bb4 7. 0-0 Qc7 8. a3 Ba5 9. b4 Bb6 10. Nxc6 Qxc6 11. Bd2 Bd4 12. Qe1 Ne7 13. Rb1 b5 14. Kh1 Bb7 15. Bd3 0-0 16. f3 Rac8 17. Ne2 Bb6 18. c3 Qd6 19. Nc1 f5 20. exf5 Nxf5 21. Bxf5 Rxf5 22. Ne2 Rc4 23. Ng3 Re5 24. Qc1 Qe7 25. Qc2 Qh4 26. Be1 Qxh2+ 27. Kxh2 Rh4# 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2003.06.17"]
[Round "5"]
[White "Van Schie, Jan"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "C44"]
[WhiteElo "1475"]
[BlackElo "1150"]
[PlyCount "67"]
[EventDate "2003.05.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d3 Nf6 4. Be2 Be7 5. Nbd2 a6 6. 0-0 0-0 7. b3 b5 8. Bb2 d6 9. c3 Bg4 10. h3 Bxf3 11. Bxf3 Na7 12. d4 c5 13. dxe5 dxe5 14. c4 Nc6 15. Be2 Nd4 16. cxb5 Nxe2+ 17. Qxe2 axb5 18. Bxe5 Qd7 19. Rfd1 Qc6 20. f3 g6 21. Bxf6 Bxf6 22. e5 Rfe8 23. f4 Qb6 24. Qf2 Bg7 25. Ne4 Rec8 26. Rdc1 Ra3 27. Rxc5 Rca8 28. Rc8+ Bf8 29. Rxf8+ Rxf8 30. Qxb6 Rfa8 31. Qxb5 Rxa2 32. Rxa2 Rxa2 33. Qe8+ Kg7 34. Ng5 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2003.06.10"]
[Round "4"]
[White "Siero, Paul"]
[Black "Aalbers, Klaas"]
[Result "0-1"]
[ECO "C40"]
[WhiteElo "1150"]
[BlackElo "1753"]
[PlyCount "64"]
[EventDate "2003.05.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 d6 5. Nc4 fxe4 6. Nc3 Qg6 7. Bf4 Nf6 8. g3 Be7 9. Qd2 0-0 10. 0-0-0 Nh5 11. Bg2 Nxf4 12. Bxe4 Qh6 13. gxf4 Qxf4 14. f3 c6 15. d5 c5 16. Rdg1 Bd7 17. Kb1 b5 18. Qg2 Bf6 19. Qg3 Qxg3 20. hxg3 bxc4 21. Bxh7+ Kf7 22. f4 Bxc3 23. bxc3 Na6 24. Re1 Rae8 25. Be4 Re7 26. f5 Rfe8 27. Rh4 Kf6 28. Rf4 Nc7 29. Rg4 Bxf5 30. Rf1 Rxe4 31. Rxe4 Rxe4 32. Rg1 Nxd5 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2003.06.03"]
[Round "3"]
[White "Faydi, Jonathan J"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1973"]
[BlackElo "1150"]
[PlyCount "51"]
[EventDate "2003.05.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. c4 Bb4+ 5. Nc3 Bxc3+ 6. bxc3 Nf6 7. Ba3 Nc6 8. Bd3 Ne7 9. Qe2 Be6 10. Nf3 0-0 11. 0-0 Re8 12. Ne5 b6 13. Bc2 dxc4 14. Ba4 Bd7 15. Nxd7 Nxd7 16. Rfe1 Kf8 17. Qf3 c5 18. dxc5 bxc5 19. Rad1 Ng6 20. Rxe8+ Qxe8 21. Bxd7 Qb8 22. Bxc5+ Kg8 23. Bd6 Qd8 24. Re1 Qxd7 25. Qxa8+ Nf8 26. Qxf8# 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2003.05.27"]
[Round "2"]
[White "Siero, Paul"]
[Black "Voge, MMP"]
[Result "1-0"]
[ECO "B56"]
[WhiteElo "1150"]
[BlackElo "1424"]
[PlyCount "77"]
[EventDate "2003.05.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bd2 Bg7 7. Bd3 Nc6 8. Nxc6 bxc6 9. 0-0 0-0 10. a3 c5 11. Qc1 Re8 12. b4 Bb7 13. Bh6 Rc8 14. Bxg7 Kxg7 15. Bb5 Rf8 16. Qe3 a6 17. Ba4 Qc7 18. b5 d5 19. exd5 Bxd5 20. Nxd5 Nxd5 21. Qd2 Rfd8 22. bxa6 c4 23. Qd4+ Nf6 24. Qc3 Kg8 25. Rad1 Ng4 26. Rxd8+ Rxd8 27. g3 Qc5 28. Qb4 Qd5 29. Qxe7 Ne5 30. c3 Nf3+ 31. Kg2 Nd2+ 32. Kg1 Nxf1 33. a7 Nd2 34. Qf6 Nf3+ 35. Kg2 Ne1+ 36. Kh3 Qg2+ 37. Kg4 h5+ 38. Kg5 Qd5+ 39. Kh6 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2003.05.20"]
[Round "1"]
[White "Van Wessel, Rudy"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "2344"]
[BlackElo "1150"]
[PlyCount "35"]
[EventDate "2003.05.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nxd4 5. Qxd4 f6 6. Bc4 Qe7 7. 0-0 d6 8. Nc3 c5 9. Qd5 f5 10. exf5 a6 11. Bg5 Nf6 12. Qf3 Qd7 13. Nd5 Nxd5 14. Bxd5 Be7 15. Rfe1 h6 16. Bxe7 Qxf5 17. Bxd6+ Kd7 18. Qxf5+ 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2002.07.02"]
[Round "7"]
[White "Kriek, F."]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "1407"]
[BlackElo "1124"]
[PlyCount "75"]
[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 e5 2. d4 exd4 3. Nf3 d6 4. Bc4 c5 5. Ng5 Nh6 6. 0-0 Be7 7. Nf3 0-0 8. c3 Bf6 9. cxd4 cxd4 10. Nxd4 Nc6 11. Be3 Ng4 12. Nxc6 bxc6 13. Bd4 d5 14. exd5 cxd5 15. Be2 Bxd4 16. Qxd4 Qf6 17. Qb4 Re8 18. Bxg4 Bxg4 19. Nd2 Rab8 20. Qxg4 Rxb2 21. Nf3 Rd8 22. Rfd1 Qc6 23. Qg5 f6 24. Qf4 Qc5 25. Nd4 Re8 26. Rac1 Qb6 27. Rc6 Rb1 28. Qd2 Rb2 29. Qc1 Rb1 30. Qd2 Rb2 31. Qc1 Qb7 32. g3 Rxa2 33. Rc7 Qa6 34. Nf5 Qe2 35. Rxg7+ Kh8 36. Rf1 d4 37. Qh6 Qxf2+ 38. Rxf2 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2002.06.25"]
[Round "6"]
[White "Siero, Paul"]
[Black "De Ruyter, Wim"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "1124"]
[BlackElo "1261"]
[PlyCount "54"]
[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 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bg4 7. Qe2 Qe7 8. 0-0 Nc6 9. c3 0-0-0 10. Re1 Re8 11. Nbd2 f5 12. b4 Nxc3 13. Qxe7 Bxe7 14. b5 Nb4 15. Ne5 Bf6 16. Kf1 Bxe5 17. Bxf5+ Bxf5 18. dxe5 Nc2 19. Bb2 Nxb5 20. e6 Nxe1 21. Rxe1 Rxe6 22. Bxg7 Rxe1+ 23. Kxe1 Rg8 24. Be5 Rxg2 25. Kf1 Rg5 26. a4 Bd3+ 27. Ke1 Rxe5+ 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2002.06.18"]
[Round "5"]
[White "Piket, Piet"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1578"]
[BlackElo "1124"]
[PlyCount "67"]
[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. d4 d5 2. g3 Nf6 3. Bg2 e6 4. Nf3 c5 5. e3 cxd4 6. exd4 Bd6 7. 0-0 0-0 8. Bg5 Nbd7 9. Nc3 a6 10. a3 b5 11. b4 Qc7 12. Bd2 Bb7 13. Ne2 e5 14. dxe5 Nxe5 15. Nxe5 Bxe5 16. Bf4 Rac8 17. Rc1 Rcd8 18. Bxe5 Qxe5 19. Nf4 Qc3 20. Qd3 Qxd3 21. cxd3 Rc8 22. h4 h6 23. Bh3 Rxc1 24. Rxc1 h5 25. Rc7 Ba8 26. Ra7 d4 27. Rxa6 Re8 28. Rb6 Re1+ 29. Bf1 Ra1 30. Rb8+ Kh7 31. Rxa8 Ng4 32. Ra5 Kh6 33. Rxb5 Rxa3 34. Rxh5# 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2002.06.11"]
[Round "4"]
[White "Siero, Paul"]
[Black "Tol, R."]
[Result "1/2-1/2"]
[ECO "B20"]
[WhiteElo "1124"]
[PlyCount "72"]
[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 c5 2. c3 Nc6 3. Bc4 e6 4. Ne2 d6 5. d4 cxd4 6. cxd4 Nf6 7. Nbc3 a6 8. 0-0 b5 9. Bb3 Bb7 10. d5 exd5 11. exd5 Ne7 12. a3 g6 13. Bg5 Bg7 14. Bxf6 Bxf6 15. Rc1 Bg7 16. Nf4 Ng8 17. Re1+ Ne7 18. Rc2 0-0 19. Qe2 Re8 20. Ne4 Be5 21. Nd3 Nxd5 22. Nxe5 Rxe5 23. Qd2 Qe7 24. f3 Nf6 25. Nxf6+ Qxf6 26. Rc7 Rb8 27. Bxf7+ Kh8 28. b4 Rg5 29. Re8+ Rxe8 30. Bxe8 Bxf3 31. g3 Rd5 32. Qc3 Qxc3 33. Rxc3 Rd2 34. Rxf3 d5 35. Rf8+ Kg7 36. Rf7+ Kh8 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2002.05.21"]
[Round "1"]
[White "Telkamp, Harry"]
[Black "Siero, Paul"]
[Result "1/2-1/2"]
[ECO "C78"]
[WhiteElo "1643"]
[BlackElo "1124"]
[PlyCount "55"]
[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 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Bc5 6. Bxc6 dxc6 7. d3 Qe7 8. Bd2 Bg4 9. Bc3 Bxf3 10. Qxf3 0-0 11. Nd2 Bb4 12. Nc4 b5 13. Bxb4 Qxb4 14. Nxe5 Qxb2 15. Nxc6 Qxc2 16. Ne7+ Kh8 17. Rac1 Qxa2 18. Rxc7 Rad8 19. Nf5 Qb3 20. Rd1 Nxe4 21. Ne3 Ng5 22. Qg4 Ne6 23. Ra7 Rxd3 24. Ra1 Rd4 25. Qh5 Ra4 26. Rxa6 Rxa6 27. Rxa6 Nf4 28. Qf3 1/2-1/2

[Event "Haarlem AKN op 10th"]
[Site "Haarlem"]
[Date "2001.07.08"]
[Round "6"]
[White "Bergshoeff, Bert"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "C53"]
[PlyCount "89"]
[EventDate "2001.07.06"]
[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 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Na5 5. Nxe5 Nxc4 6. Nxc4 d6 7. d4 Bb6 8. Bf4 Be6 9. Nxb6 axb6 10. d5 Bd7 11. 0-0 Ne7 12. Nd2 0-0 13. h3 b5 14. Nf3 Ng6 15. Bg3 Ra6 16. Qe2 c5 17. b4 Re8 18. Rfe1 Ne5 19. Nxe5 dxe5 20. bxc5 Qc8 21. Qe3 Qa8 22. Qe2 Qc8 23. Qe3 Qa8 24. Re2 Ra4 25. f4 f6 26. f5 Rc4 27. Bf2 Qa3 28. Rc2 Qa4 29. Re2 Qa3 30. Rc1 Ra8 31. Qd2 Raa4 32. Qd3 Qxc1+ 33. Kh2 Rxc3 34. Qd2 Qa1 35. Be1 Rc1 36. c6 bxc6 37. dxc6 Bxc6 38. Qd8+ Kf7 39. Qc7+ Kf8 40. Rd2 Ra8 41. Rd8+ Rxd8 42. Qxd8+ Be8 43. Bb4+ Kf7 44. Qe7+ Kg8 45. Qf8# 1-0

[Event "Haarlem AKN op 10th"]
[Site "Haarlem"]
[Date "2001.07.08"]
[Round "5"]
[White "Siero, Paul"]
[Black "Spoelstra, Bas"]
[Result "0-1"]
[ECO "B10"]
[PlyCount "56"]
[EventDate "2001.07.06"]
[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 c6 2. c4 d5 3. cxd5 cxd5 4. Nf3 dxe4 5. Ng5 Nf6 6. Nc3 Nc6 7. Bb5 Bd7 8. 0-0 e6 9. Ngxe4 Nxe4 10. Nxe4 a6 11. Ba4 b5 12. Bb3 Nd4 13. Bc2 Nxc2 14. Qxc2 Rc8 15. Qd1 Be7 16. a3 0-0 17. b4 Bc6 18. d3 Qd5 19. Be3 f5 20. f3 fxe4 21. fxe4 Rxf1+ 22. Kxf1 Rf8+ 23. Kg1 Qe5 24. Rc1 Bd6 25. g3 Bb7 26. Bc5 Bxc5+ 27. Rxc5 Qd4+ 28. Kh1 Bxe4+ 0-1

[Event "Haarlem AKN op 10th"]
[Site "Haarlem"]
[Date "2001.07.07"]
[Round "4"]
[White "Loos, Jeroen"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "A09"]
[PlyCount "101"]
[EventDate "2001.07.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 dxc4 3. Na3 Nf6 4. Nxc4 e6 5. g3 Bd6 6. Nxd6+ cxd6 7. Bg2 Qe7 8. d3 0-0 9. 0-0 Nc6 10. b3 a5 11. Bb2 Rb8 12. Rc1 Bd7 13. Rc2 b6 14. Qa1 e5 15. Nd2 Rfc8 16. Rfc1 Qe8 17. e3 d5 18. Nf3 d4 19. exd4 exd4 20. Nxd4 Nxd4 21. Bxd4 Qd8 22. Be5 Rxc2 23. Rxc2 Rc8 24. Rxc8 Qxc8 25. Qc3 Qe8 26. Qd4 b5 27. Qd6 Ng4 28. Bf4 Nf6 29. Qb8 Bc8 30. h3 h6 31. Qc7 Bf5 32. Bc6 Qe1+ 33. Kg2 Bxh3+ 34. Kxh3 Qe6+ 35. Kg2 Ne8 36. Bxe8 Qxe8 37. Qb8 Qxb8 38. Bxb8 g5 39. g4 Kh7 40. Kg3 Kg6 41. d4 Kf6 42. d5 Ke7 43. d6+ Kd7 44. Kf3 f6 45. Ke4 Ke6 46. Bc7 a4 47. bxa4 bxa4 48. a3 Kd7 49. Kf5 h5 50. gxh5 g4 51. h6 1-0

[Event "Haarlem AKN op 10th"]
[Site "Haarlem"]
[Date "2001.07.07"]
[Round "3"]
[White "Siero, Paul"]
[Black "Gorissen, Ad"]
[Result "0-1"]
[ECO "B34"]
[PlyCount "72"]
[EventDate "2001.07.06"]
[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. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Qd2 Ng4 8. Nxc6 bxc6 9. 0-0-0 Nxe3 10. Qxe3 0-0 11. f4 e6 12. e5 Qe7 13. Rd6 f6 14. Ne4 fxe5 15. fxe5 Bxe5 16. Rd2 Bf4 17. Qc3 Bxd2+ 18. Nxd2 Rb8 19. Kb1 Qb4 20. Qxb4 Rxb4 21. Be2 Rf2 22. c3 Rxe2 23. cxb4 Rxd2 24. g3 Bb7 25. Rf1 Ba6 26. Rc1 Be2 27. b3 Rd1 28. Rxd1 Bxd1 29. Kb2 a6 30. a4 Kf7 31. Ka3 e5 32. a5 e4 33. Ka4 e3 34. b5 cxb5+ 35. Kb4 e2 36. Kc5 e1Q 0-1

[Event "Haarlem AKN op 10th"]
[Site "Haarlem"]
[Date "2001.07.06"]
[Round "1"]
[White "Witt, Rob"]
[Black "Siero, Paul"]
[Result "1-0"]
[ECO "B41"]
[WhiteElo "2280"]
[PlyCount "65"]
[EventDate "2001.07.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 d6 3. Nc3 e6 4. d4 Be7 5. e4 c5 6. Be2 cxd4 7. Nxd4 a6 8. 0-0 0-0 9. f4 d5 10. e5 Ne4 11. Nxe4 dxe4 12. Kh1 Bc5 13. Nb3 Qxd1 14. Rxd1 Nd7 15. Rxd7 Bxd7 16. Nxc5 Bc6 17. Be3 f5 18. Nxe6 Rfc8 19. Bb6 a5 20. Kg1 Ra6 21. c5 Raa8 22. Bc4 Kh8 23. Kf2 a4 24. Ke3 a3 25. b3 Rab8 26. Rd1 Re8 27. Nd8 Re7 28. Nf7+ Kg8 29. Nd6+ Kh8 30. Nxf5 Rd7 31. Rxd7 Bxd7 32. e6 Bc8 33. Nd6 1-0

