[Event "Ruhrgebiet VK2 0001"]
[Site "Ruhrgebiet"]
[Date "2001.02.18"]
[Round "6"]
[White "Niehaus, Alexander"]
[Black "Jaust, Marc"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1854"]
[BlackElo "1791"]
[PlyCount "40"]
[EventDate "2000.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Linden Sued"]
[BlackTeam "Recklinghausen Laeufer Ost"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. g4 Bd7 5. c3 e6 6. Bd3 c5 7. Be3 Qb6 8. Qc2 Nc6 9. Nf3 cxd4 10. cxd4 Nb4 11. Qd2 Nxd3+ 12. Qxd3 Qxb2 13. Bd2 Rc8 14. Qb3 Qxb3 15. axb3 Bb5 16. Rxa7 Ba6 17. Kd1 Ne7 18. Nc3 Nc6 19. Rxa6 bxa6 20. Kc2 Nb4+ 0-1

[Event "Ruhrgebiet VK2 0001"]
[Site "Ruhrgebiet"]
[Date "2000.10.15"]
[Round "2"]
[White "Happel, Juergen"]
[Black "Niehaus, Alexander"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1889"]
[BlackElo "1854"]
[PlyCount "67"]
[EventDate "2000.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Hamm Koenigsspringer"]
[BlackTeam "Linden Sued"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. d4 Bg4 5. Be2 e6 6. 0-0 Bd6 7. h3 Bh5 8. Nc3 a6 9. Ne1 Bxe2 10. Qxe2 Ne7 11. Nf3 0-0 12. Qd3 Nbc6 13. a3 Ng6 14. Bd2 Rc8 15. Rad1 Bb8 16. Ne2 Qd6 17. g3 Nce7 18. Nf4 Qc6 19. Nxg6 Nxg6 20. c3 Qd6 21. Rfe1 Rc4 22. Ne5 Nxe5 23. Rxe5 g6 24. Rde1 Qd7 25. R5e2 Bd6 26. Kg2 Rfc8 27. h4 Kf8 28. h5 Ke8 29. hxg6 hxg6 30. Rh1 Kd8 31. Rh7 Qe8 32. Qf3 R8c7 33. Bg5+ Be7 34. Rxf7 1-0

[Event "Ruhrgebiet VK2 0001"]
[Site "Ruhrgebiet"]
[Date "2000.09.17"]
[Round "1"]
[White "Korber, Markus"]
[Black "Niehaus, Alexander"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1853"]
[BlackElo "1854"]
[PlyCount "54"]
[EventDate "2000.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Steele/Kray Rochade"]
[BlackTeam "Linden Sued"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. Bf4 Nf6 3. e3 Bf5 4. c4 e6 5. Nc3 Bd6 6. Bxd6 Qxd6 7. c5 Qe7 8. Nf3 c6 9. Be2 Nbd7 10. 0-0 e5 11. Nxe5 Nxe5 12. dxe5 Qxe5 13. Qd4 Qxd4 14. exd4 Kd7 15. Rfe1 Rhe8 16. f3 Re7 17. Kf2 Rae8 18. b4 Re3 19. Rac1 Bd3 20. Bf1 Rxe1 21. Rxe1 Bxf1 22. Kxf1 Re6 23. Kf2 Rxe1 24. Kxe1 Ne8 25. Kd2 Nc7 26. Kd3 a6 27. Ke3 Ke7 1/2-1/2

[Event "Ruhrgebiet-ch U20"]
[Site "Germany"]
[Date "1997.??.??"]
[Round "?"]
[White "Graewe, Daniel"]
[Black "Niehaus, Alexander"]
[Result "0-1"]
[ECO "D47"]
[PlyCount "46"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 Nd5 8. Qd3 Bd6 9. 0-0 0-0 10. a3 Re8 11. Rd1 Nxc3 12. bxc3 Qc7 13. h3 h6 14. e4 c5 15. Be3 Nb6 16. Nd2 Nxc4 17. Nxc4 cxd4 18. Nxd6 Qxd6 19. cxd4 b6 20. f3 Bb7 21. Rdb1 Rac8 22. Rb5 Ba6 23. Rxb6 Qxb6 0-1

[Event "Ruhrgebiet-ch U20"]
[Site "Germany"]
[Date "1997.??.??"]
[Round "?"]
[White "Jagodzinski, Andreas"]
[Black "Niehaus, Alexander"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2255"]
[PlyCount "48"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Nbd7 6. e3 c6 7. Bd3 Bd6 8. Qc2 Qc7 9. Nf3 0-0 10. 0-0 h6 11. Bh4 Ng4 12. Bg3 Bxg3 13. hxg3 Ndf6 14. b4 Re8 15. Rac1 Bd7 16. Qb3 Nh5 17. Nxd5 Qd6 18. Nf4 Nxg3 19. fxg3 Rxe3 20. Rfe1 Rxf3 21. gxf3 Qxd4+ 22. Kh1 c5 23. fxg4 Bc6+ 24. Ng2 Qxg4 1-0

[Event "Ruhrgebiet-ch U20"]
[Site "Germany"]
[Date "1997.??.??"]
[Round "?"]
[White "Kathstede, Gerd"]
[Black "Niehaus, Alexander"]
[Result "1/2-1/2"]
[ECO "B12"]
[PlyCount "40"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Bd3 Bxd3 5. Qxd3 e6 6. Nf3 Nd7 7. 0-0 Ne7 8. Bf4 Ng6 9. Bg3 c5 10. c3 Be7 11. Nbd2 0-0 12. Rfe1 cxd4 13. cxd4 Qb6 14. Nb3 Rac8 15. Rac1 Rc6 16. Rc2 Rfc8 17. Rec1 Rxc2 18. Rxc2 Rxc2 19. Qxc2 Qc6 20. Ne1 Qxc2 1/2-1/2

[Event "Ruhrgebiet-ch U20"]
[Site "Germany"]
[Date "1997.??.??"]
[Round "?"]
[White "Niehaus, Alexander"]
[Black "Arimont, Marcel"]
[Result "1/2-1/2"]
[ECO "E51"]
[PlyCount "31"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nc3 Nf6 4. e3 e6 5. Bxc4 Bb4 6. a3 Bxc3+ 7. bxc3 0-0 8. Nf3 Nbd7 9. 0-0 b6 10. Qc2 Bb7 11. Nd2 c5 12. Bd3 Qc7 13. Ne4 Bxe4 14. Bxe4 Nxe4 15. Qxe4 Nf6 16. Qf3 1/2-1/2

[Event "Ruhrgebiet-ch U20"]
[Site "Germany"]
[Date "1997.??.??"]
[Round "?"]
[White "Niehaus, Alexander"]
[Black "Ewe, Kevin"]
[Result "1-0"]
[ECO "C53"]
[PlyCount "40"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[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. c3 d6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nge7 8. Be3 0-0 9. 0-0 d5 10. Nxd5 Nxd5 11. Bxd5 Ne7 12. Bc4 c6 13. Ne5 Bd6 14. Qh5 Bxe5 15. Qxe5 Ng6 16. Qg3 Qh4 17. Qxh4 Nxh4 18. d5 cxd5 19. Bxd5 a6 20. Rac1 Rd8 1-0

[Event "Ruhrgebiet-ch U20"]
[Site "Germany"]
[Date "1997.??.??"]
[Round "?"]
[White "Niehaus, Alexander"]
[Black "Kroener, Alexander"]
[Result "0-1"]
[ECO "B02"]
[PlyCount "62"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Bc4 Nxd5 4. d4 c6 5. Nc3 Nxc3 6. bxc3 Bf5 7. Rb1 b5 8. Bb3 e6 9. Bf4 a5 10. a4 b4 11. Qf3 Qd7 12. h4 h5 13. Nh3 bxc3 14. Bc4 Bb4 15. Bb5 0-0 16. Bxb8 Raxb8 17. Bxc6 Qxd4 18. 0-0 Bxc2 19. Rbc1 Bb3 20. Qxh5 g6 21. Qh6 c2 22. Be4 Rbc8 23. h5 Bd2 24. Nf4 Qg7 25. Qg5 e5 26. h6 Bxf4 27. hxg7 Bxg5 28. gxf8Q+ Kxf8 29. g3 Bxc1 30. Rxc1 Bxa4 31. Bd5 Rd8 0-1

[Event "Ruhrgebiet-ch U20"]
[Site "Germany"]
[Date "1997.??.??"]
[Round "?"]
[White "Niehaus, Alexander"]
[Black "Schiller, Thomas"]
[Result "0-1"]
[ECO "C53"]
[PlyCount "54"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[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. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 d6 8. Qc2 Bg4 9. Be3 Qe7 10. h3 Bh5 11. Nd2 0-0 12. 0-0 Bg6 13. Bd3 Rfe8 14. f3 Bxc3 15. bxc3 Nd5 16. Nc4 b5 17. exd5 Bxd3 18. Qxd3 bxc4 19. Qd2 Qxe3+ 20. Qxe3 Rxe3 21. dxc6 Rxc3 22. Rfc1 Rxc1+ 23. Rxc1 d5 24. Rb1 Kf8 25. Rb5 Rd8 26. Rb7 a6 27. Rxc7 c3 0-1

[Event "Ruhrgebiet-ch U20"]
[Site "Germany"]
[Date "1996.??.??"]
[Round "?"]
[White "Hackl Sommer, Rene"]
[Black "Niehaus, Alexander"]
[Result "1/2-1/2"]
[ECO "B15"]
[PlyCount "76"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 g6 5. Bc4 Bg7 6. Ne2 Nf6 7. Nxf6+ exf6 8. 0-0 0-0 9. c3 Nd7 10. Bf4 Nb6 11. Bb3 Nd5 12. Bg3 Be6 13. Bc2 Re8 14. Qd2 Qd7 15. b3 Bf5 16. Bxf5 Qxf5 17. c4 Ne7 18. Rad1 Rad8 19. f3 Qd7 20. Bf2 Nf5 21. Ng3 Bh6 22. f4 Nxg3 23. hxg3 Re4 24. d5 b6 25. Qc2 Rde8 26. dxc6 Qxc6 27. Rfe1 f5 28. Rxe4 fxe4 29. Be3 f5 30. a4 Bf8 31. Qc3 Bc5 32. Kf2 Be7 33. Rd5 Rd8 34. Rxd8+ Bxd8 35. Qe5 Bc7 36. Qc3 Qd6 37. Ke2 Bd8 38. c5 Qc6 1/2-1/2

[Event "Ruhrgebiet-ch U20"]
[Site "Germany"]
[Date "1996.??.??"]
[Round "?"]
[White "Hamburg, Daniel"]
[Black "Niehaus, Alexander"]
[Result "1/2-1/2"]
[ECO "D36"]
[PlyCount "79"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. cxd5 exd5 6. e3 c6 7. Bd3 Be7 8. Qc2 h6 9. Bh4 0-0 10. Nge2 Ng4 11. Bxe7 Qxe7 12. h3 Ngf6 13. 0-0-0 Nb6 14. g4 Ne8 15. Rdg1 g6 16. h4 Nc4 17. Nf4 b5 18. Nd1 a5 19. Bxg6 fxg6 20. Nxg6 Qh7 21. Nxf8 Qxc2+ 22. Kxc2 Kxf8 23. g5 h5 24. Rg3 Bf5+ 25. Kc1 Be4 26. f3 Bg6 27. Re1 Ned6 28. Rh3 Kg7 29. b3 Nb6 30. Kb2 Re8 31. Nf2 Nf5 32. Nd1 Nxd4 33. Rf1 Nf5 34. Rh2 Nxe3 35. Nxe3 Rxe3 36. f4 c5 37. f5 Be8 38. Rhf2 Kf8 39. f6 Bg6 40. Rh2 1/2-1/2

[Event "Ruhrgebiet-ch U20"]
[Site "Germany"]
[Date "1996.??.??"]
[Round "?"]
[White "Neumann, M."]
[Black "Niehaus, Alexander"]
[Result "1-0"]
[ECO "E01"]
[PlyCount "41"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 c6 5. Bg2 Bd6 6. 0-0 0-0 7. Qc2 Nbd7 8. Nbd2 Re8 9. e4 dxe4 10. Nxe4 Nxe4 11. Qxe4 e5 12. dxe5 Nxe5 13. h3 Qf6 14. Nxe5 Bxe5 15. Bf4 Bf5 16. Bxe5 Rxe5 17. Qf4 Qe6 18. Rfd1 Re8 19. b3 Bxh3 20. Bxh3 Qxh3 21. Qxe5 1-0

[Event "Ruhrgebiet-ch U20"]
[Site "Germany"]
[Date "1996.??.??"]
[Round "?"]
[White "Niehaus, Alexander"]
[Black "Barskij, Alexander"]
[Result "1-0"]
[ECO "B23"]
[PlyCount "79"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 d6 4. Nf3 g6 5. Bc4 e6 6. d3 Bg7 7. 0-0 Nge7 8. Qe1 0-0 9. Qh4 Nd4 10. Nxd4 Bxd4+ 11. Kh1 a6 12. g4 b5 13. Bb3 b4 14. Ne2 Bg7 15. Rf3 Nc6 16. g5 h5 17. f5 Ne5 18. Rf1 c4 19. f6 cxb3 20. fxg7 Kxg7 21. axb3 Qc7 22. Nd4 Nc6 23. Qf2 Nxd4 24. Qxd4+ e5 25. Qc4 Qxc4 26. bxc4 f5 27. gxf6+ Rxf6 28. Rxf6 Kxf6 29. h4 Kg7 30. Bd2 Rb8 31. b3 Bg4 32. Kg2 Rb6 33. Kf2 Kf7 34. Ke1 Bd7 35. Be3 Rc6 36. Ra4 Be6 37. Rxb4 Bd7 38. Rb7 Ke6 39. Bg5 Bc8 40. Re7# 1-0

[Event "Ruhrgebiet-ch U20"]
[Site "Germany"]
[Date "1996.??.??"]
[Round "?"]
[White "Niehaus, Alexander"]
[Black "Schreck, Roland"]
[Result "1/2-1/2"]
[ECO "B07"]
[PlyCount "41"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 d6 2. Bc4 Nf6 3. Nc3 g6 4. d3 Bg7 5. f3 c6 6. Bg5 b5 7. Bb3 Nbd7 8. Qd2 a5 9. a3 Nc5 10. Ba2 b4 11. axb4 axb4 12. Bxf7+ Kxf7 13. Rxa8 bxc3 14. bxc3 Qb6 15. Ne2 Rf8 16. Ra1 Kg8 17. Be3 Qc7 18. Bxc5 dxc5 19. 0-0 e5 20. c4 Nh5 21. Rfb1 1/2-1/2

[Event "Ruhrgebiet-ch U20"]
[Site "Germany"]
[Date "1996.??.??"]
[Round "?"]
[White "Niehaus, Alexander"]
[Black "Stefaniak, Christian"]
[Result "1/2-1/2"]
[ECO "C02"]
[PlyCount "33"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nd7 5. Bd3 Ne7 6. Nf3 Nc6 7. 0-0 Qb6 8. Bc2 cxd4 9. cxd4 f6 10. exf6 Nxf6 11. Nc3 Bd6 12. Na4 Qc7 13. Be3 0-0 14. Rc1 Bd7 15. Re1 Rae8 16. Nc3 a6 17. Bd3 1/2-1/2

[Event "Ruhrgebiet-ch U20"]
[Site "Germany"]
[Date "1996.??.??"]
[Round "?"]
[White "Rodehueser, Marco"]
[Black "Niehaus, Alexander"]
[Result "1/2-1/2"]
[ECO "D06"]
[PlyCount "69"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Bf5 3. c4 e6 4. Nc3 Nf6 5. Bg5 Bb4 6. e3 Nbd7 7. Be2 h6 8. Bh4 c6 9. a3 Bxc3+ 10. bxc3 g5 11. Bg3 Ne4 12. Qb3 Qb6 13. Qxb6 axb6 14. cxd5 Nxc3 15. dxe6 fxe6 16. Ne5 Nxe2 17. Kxe2 Ra4 18. Nd3 Bxd3+ 19. Kxd3 Ke7 20. Kc3 Rha8 21. Kb2 Nf6 22. h4 g4 23. f3 b5 24. Be5 gxf3 25. Bxf6+ Kxf6 26. gxf3 e5 27. Rhd1 exd4 28. exd4 Ke6 29. Rg1 Rxd4 30. Rg6+ Kf7 31. Rxh6 Kg7 32. Re6 Rxh4 33. Re7+ Kf6 34. Rxb7 Rf4 35. Rb6 1/2-1/2

[Event "Ruhrgebiet-ch U17"]
[Site "Germany"]
[Date "1995.??.??"]
[Round "?"]
[White "Barskij, Alexander"]
[Black "Niehaus, Alexander"]
[Result "1-0"]
[ECO "C68"]
[PlyCount "46"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 bxc6 5. 0-0 d6 6. d4 exd4 7. Nxd4 Bb7 8. Re1 Be7 9. Nc3 c5 10. Nf3 Qd7 11. Bf4 f6 12. Nd5 Rb8 13. b3 h5 14. Qd2 Nh6 15. Nh4 Bxd5 16. Qxd5 c6 17. Qd2 g5 18. Ng6 Rh7 19. Nxe7 Qxe7 20. Qxd6 Rb6 21. Qxe7+ Kxe7 22. Be3 Rb5 23. c4 Ng4 1-0

[Event "Ruhrgebiet-ch U17"]
[Site "Germany"]
[Date "1995.??.??"]
[Round "?"]
[White "Brockmann, Ulf"]
[Black "Niehaus, Alexander"]
[Result "1-0"]
[ECO "A05"]
[PlyCount "93"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. e3 d5 3. b3 g6 4. Bb2 Bg7 5. d3 b6 6. Nbd2 Bb7 7. Be2 0-0 8. 0-0 c5 9. c4 dxc4 10. Nxc4 Nc6 11. Nfe5 Nxe5 12. Bxe5 Ne8 13. d4 cxd4 14. exd4 b5 15. Ne3 Bxe5 16. dxe5 Qc7 17. Qd4 a6 18. Rfc1 Qd8 19. Qc5 Ng7 20. Bg4 e6 21. Rd1 Qc8 22. Qe7 Re8 23. Qf6 Rd8 24. Rdc1 Qd7 25. Rc2 Rac8 26. Rd1 Qe8 27. Rxd8 Qxd8 28. Qxd8+ Rxd8 29. Rc7 Be4 30. Ra7 Ra8 31. Rd7 Nf5 32. Bxf5 Bxf5 33. Nxf5 exf5 34. f4 Rc8 35. Rd2 Kf8 36. h3 h5 37. Rd6 Rc1+ 38. Kh2 a5 39. Ra6 a4 40. bxa4 b4 41. Rb6 Ra1 42. Rxb4 Rxa2 43. Kg3 h4+ 44. Kxh4 Rxg2 45. Rb7 Kg7 46. e6 g5+ 47. fxg5 1-0

[Event "Ruhrgebiet-ch U17"]
[Site "Germany"]
[Date "1995.??.??"]
[Round "?"]
[White "Niehaus, Alexander"]
[Black "Dalhoff, Gundula"]
[Result "1/2-1/2"]
[ECO "B73"]
[PlyCount "39"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[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 Nc6 9. 0-0 Re8 10. h3 a6 11. a3 Bd7 12. Kh1 Rc8 13. f3 Nh5 14. Kh2 Ne5 15. Bh6 Nc4 16. Bxc4 Rxc4 17. Bxg7 Kxg7 18. Nde2 Qa5 19. Rad1 Nf6 20. Kh1 1/2-1/2

[Event "Ruhrgebiet-ch U17"]
[Site "Germany"]
[Date "1995.??.??"]
[Round "?"]
[White "Niehaus, Alexander"]
[Black "Kathstede, Gerd"]
[Result "1/2-1/2"]
[ECO "C54"]
[PlyCount "41"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[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. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 0-0 8. Bg5 Be7 9. 0-0 h6 10. Bh4 Nxe4 11. Bxe7 Qxe7 12. Nd5 Qd8 13. g3 d6 14. Nh4 Bh3 15. Re1 Nf6 16. Qf3 Nxd4 17. Nxf6+ Qxf6 18. Qxf6 gxf6 19. Re7 b5 20. Bd5 c6 21. Rd1 1/2-1/2

[Event "Ruhrgebiet-ch U17"]
[Site "Germany"]
[Date "1995.??.??"]
[Round "?"]
[White "Niehaus, Alexander"]
[Black "Mayer Guerr, Stephan"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "43"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[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 d6 4. h3 h6 5. d3 Be7 6. 0-0 Nf6 7. Be3 Bd7 8. Qd2 a6 9. a3 Rb8 10. Nc3 Qc8 11. Kh2 Be6 12. Nd5 Bxd5 13. Bxd5 Nxd5 14. exd5 Nd8 15. Ng1 c6 16. c4 c5 17. f4 Bf6 18. Rac1 b5 19. fxe5 dxe5 20. Bf4 Qc7 21. Nf3 0-0 22. Nxe5 1-0

[Event "Ruhrgebiet-ch U17"]
[Site "Germany"]
[Date "1995.??.??"]
[Round "?"]
[White "Niehaus, Alexander"]
[Black "Verkooyen, Michaela"]
[Result "1-0"]
[ECO "C55"]
[PlyCount "51"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[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 h6 4. d3 Nf6 5. Nc3 d6 6. h3 Qe7 7. Be3 Be6 8. Bb3 Bxb3 9. axb3 Qd8 10. 0-0 Be7 11. Qd2 0-0 12. Nd5 Nxd5 13. exd5 Nb8 14. Rxa7 Rxa7 15. Bxa7 Nd7 16. Be3 Nf6 17. c4 c6 18. dxc6 bxc6 19. Ra1 e4 20. Nd4 c5 21. Nc6 Qd7 22. Nxe7+ Qxe7 23. dxe4 Nxe4 24. Qd5 Nf6 25. Qc6 Qe4 26. Qxd6 1-0

[Event "Ruhrgebiet-ch U17"]
[Site "Germany"]
[Date "1995.??.??"]
[Round "?"]
[White "Rodehueser, Marco"]
[Black "Niehaus, Alexander"]
[Result "1/2-1/2"]
[ECO "C01"]
[PlyCount "50"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 f5 3. e5 g6 4. f4 d5 5. Nf3 c5 6. c3 Nc6 7. a3 Qb6 8. b4 c4 9. Be3 Nge7 10. Nbd2 Qc7 11. Be2 Bh6 12. g3 0-0 13. h4 a5 14. Ng5 Bg7 15. b5 Nb8 16. a4 b6 17. Ndf3 h6 18. Nh3 Bd7 19. Bc1 h5 20. Ba3 Qd8 21. Nhg5 Bh6 22. Kf2 Kg7 23. Qc1 Rh8 24. Qb2 Kg8 25. Kg2 Bf8 1/2-1/2

