[Event "Regionalliga NordN 9091"]
[Site "Germany"]
[Date "1991.05.05"]
[Round "9.6"]
[White "Osterkorn, Christoph"]
[Black "Bornemann, Wolfram"]
[Result "0-1"]
[ECO "A01"]
[BlackElo "2355"]
[PlyCount "134"]
[EventDate "1990.10.07"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]
[WhiteTeam "Leck MTV"]
[BlackTeam "Lasker Steglitz II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. b3 Nf6 2. Bb2 g6 3. e4 d6 4. g3 Bg7 5. Bg2 0-0 6. Ne2 e5 7. 0-0 Nbd7 8. c4 Nc5 9. d3 a5 10. a3 c6 11. b4 axb4 12. axb4 Rxa1 13. Bxa1 Ne6 14. Nbc3 Ng4 15. h3 Nh6 16. Kh2 f5 17. exf5 Nxf5 18. b5 Bd7 19. Bb2 Qa5 20. Qa1 Ra8 21. Qxa5 Rxa5 22. bxc6 bxc6 23. Ra1 Rxa1 24. Bxa1 Nc5 25. Nc1 Bh6 26. N3e2 Bd2 27. Bc3 Bxc3 28. Nxc3 Kf7 29. Kg1 Nd4 30. Kf1 Bf5 31. N3e2 Nxd3 32. Nxd4 exd4 33. g4 Nxc1 34. gxf5 gxf5 35. Bxc6 Nd3 36. h4 Kf6 37. Ke2 Ne5 38. Bd5 f4 39. f3 h6 40. Be4 Nd7 41. Kd2 Nc5 42. Bh7 Ke5 43. Ke2 Na4 44. Kd2 Nc5 45. Bg6 Nd7 46. Kd3 Nf8 47. Bf7 Nh7 48. Bg6 Nf6 49. Bf7 Nd7 50. Bd5 Nc5+ 51. Kd2 Kf6 52. Bc6 Ke7 53. Bd5 Kd8 54. Bf7 Kc7 55. Bd5 Kb6 56. Kc2 Ka5 57. Kd2 Kb4 58. Kc2 Na4 59. Kd3 Kc5 60. Be6 Nb2+ 61. Kc2 Nxc4 62. Bc8 Ne5 63. h5 Kb4 64. Bb7 d3+ 65. Kd2 Kc4 66. Be4 Kd4 67. Bb7 d5 0-1

[Event "Regionalliga NordN 9091"]
[Site "Germany"]
[Date "1991.04.14"]
[Round "8.7"]
[White "Osterkorn, Christoph"]
[Black "Richter, A."]
[Result "0-1"]
[ECO "A01"]
[PlyCount "78"]
[EventDate "1990.10.07"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]
[WhiteTeam "Leck MTV"]
[BlackTeam "Luebeck II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. b3 e5 2. Bb2 Nc6 3. e3 d5 4. Bb5 Bd6 5. f4 Qe7 6. Nf3 f6 7. Nc3 Be6 8. Qe2 Nh6 9. e4 dxe4 10. Nxe4 exf4 11. 0-0-0 0-0 12. Rhe1 Ne5 13. d4 Nxf3 14. gxf3 Bf7 15. Qd3 Qd8 16. Bc4 Bxc4 17. Qxc4+ Kh8 18. Nc5 Nf5 19. Ne6 Qc8 20. Nxf8 Qxf8 21. Rd2 Bb4 22. c3 Bd6 23. Qd5 Ne3 24. Qxb7 a5 25. Qc6 a4 26. bxa4 Rb8 27. a5 Ba3 28. Ree2 Bd6 29. d5 Qc8 30. Rd4 Qh3 31. Rxe3 fxe3 32. Rd1 e2 33. Re1 Bf4+ 34. Kb1 Qf5+ 35. Ka1 Qc2 36. Ba3 Qd1+ 37. Bc1 Bxc1 38. Rxd1 Bb2+ 39. Kb1 exd1Q# 0-1

[Event "Regionalliga NordN 9091"]
[Site "Germany"]
[Date "1991.03.17"]
[Round "7.7"]
[White "Eichardt, Stefan"]
[Black "Osterkorn, Christoph"]
[Result "1-0"]
[ECO "A48"]
[PlyCount "61"]
[EventDate "1990.10.07"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]
[WhiteTeam "Pinneberg"]
[BlackTeam "Leck MTV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 0-0 5. c3 h6 6. Bh4 d6 7. e4 Nc6 8. Be2 e5 9. dxe5 Nxe5 10. Nxe5 dxe5 11. 0-0 Qe7 12. Re1 b6 13. Bf1 Bb7 14. Qc2 Rad8 15. b4 g5 16. Bg3 Rxd2 17. Qxd2 Nxe4 18. Qc2 Nxg3 19. hxg3 e4 20. Rad1 f5 21. Bc4+ Kh8 22. a3 Be5 23. Bd5 c6 24. Bxe4 fxe4 25. Qxe4 Re8 26. f4 gxf4 27. gxf4 Bf6 28. Qxe7 Bxe7 29. Re5 Kg7 30. Rd7 Kf6 31. Rxb7 1-0

[Event "Regionalliga NordN 9091"]
[Site "Germany"]
[Date "1991.02.17"]
[Round "6.7"]
[White "Osterkorn, Christoph"]
[Black "Stockfleth, Ron"]
[Result "1/2-1/2"]
[ECO "A07"]
[PlyCount "59"]
[EventDate "1990.10.07"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]
[WhiteTeam "Leck MTV"]
[BlackTeam "Hamburg II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. b3 d5 2. Bb2 Bf5 3. Nf3 e6 4. g3 Nf6 5. Bg2 Be7 6. d3 h6 7. Nbd2 0-0 8. 0-0 c5 9. Ne5 Nbd7 10. e4 dxe4 11. dxe4 Bh7 12. Qe2 Qc7 13. Ndc4 b5 14. Nxd7 Nxd7 15. Ne3 Rab8 16. a4 a6 17. f4 Rfd8 18. axb5 axb5 19. Bc3 b4 20. Bb2 Bf6 21. e5 Be7 22. Ra6 Rb6 23. Ra2 Nb8 24. Rfa1 Nc6 25. Nc4 Rbb8 26. Qf2 Bf8 27. Ra6 Nd4 28. Ra7 Qc8 29. Bxd4 Rxd4 30. Ra8 1/2-1/2

[Event "Regionalliga NordN 9091"]
[Site "Germany"]
[Date "1991.01.27"]
[Round "5.7"]
[White "Laqua, Christian"]
[Black "Osterkorn, Christoph"]
[Result "0-1"]
[ECO "A26"]
[WhiteElo "2205"]
[PlyCount "82"]
[EventDate "1990.10.07"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]
[WhiteTeam "Hamburg Diogenes"]
[BlackTeam "Leck MTV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 d6 6. 0-0 e5 7. d3 Nc6 8. Rb1 a5 9. a3 h6 10. Nd2 Be6 11. Nd5 Rb8 12. b4 axb4 13. axb4 Ne7 14. Qb3 Nexd5 15. cxd5 Bg4 16. Re1 Qd7 17. b5 b6 18. Ne4 Nh5 19. f3 Bh3 20. g4 Bxg2 21. gxh5 Bh3 22. Bxh6 f5 23. Bxg7 Qxg7 24. Ng5 gxh5 25. Kh1 Qxg5 26. Rg1 Bg4 27. fxg4 fxg4 28. Rbf1 Rf4 29. Qc2 Rbf8 30. Rxf4 exf4 31. Qc4 Re8 32. Rg2 Re7 33. Rf2 Rf7 34. Qe4 h4 35. Qe6 g3 36. hxg3 hxg3 37. Rg2 Kg7 38. Qe4 Re7 39. Qd4+ Kg6 40. Kg1 f3 41. e3 fxg2 0-1

[Event "Regionalliga NordN 9091"]
[Site "Germany"]
[Date "1991.01.06"]
[Round "4.7"]
[White "Osterkorn, Christoph"]
[Black "Kammer, Roland"]
[Result "1/2-1/2"]
[ECO "B80"]
[PlyCount "47"]
[EventDate "1990.10.07"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]
[WhiteTeam "Leck MTV"]
[BlackTeam "Hamburg FH"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nc3 Nc6 3. g3 e6 4. Bg2 Nf6 5. Nf3 d6 6. 0-0 Be7 7. d4 cxd4 8. Nxd4 Bd7 9. b3 a6 10. Bb2 Qc7 11. Qd2 Rc8 12. Rfd1 0-0 13. Rac1 Rfd8 14. Nce2 e5 15. Nxc6 Bxc6 16. Nc3 b5 17. Nd5 Nxd5 18. exd5 Bd7 19. c4 Qa7 20. Ba3 bxc4 21. Rxc4 Rxc4 22. bxc4 Rc8 23. Rc1 h6 24. Qe3 1/2-1/2

[Event "Regionalliga NordN 9091"]
[Site "Germany"]
[Date "1990.12.16"]
[Round "3.7"]
[White "Bethe, Stephan"]
[Black "Osterkorn, Christoph"]
[Result "1-0"]
[ECO "C45"]
[PlyCount "111"]
[EventDate "1990.10.07"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]
[WhiteTeam "Luebeck"]
[BlackTeam "Leck MTV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. a4 a6 7. Nc3 d6 8. Qe2 Nf6 9. Bg5 h6 10. Bh4 g5 11. Bg3 Qe7 12. 0-0-0 Bd7 13. f3 0-0-0 14. Bf2 Bxf2 15. Qxf2 Kb8 16. Nd4 Qe5 17. Bc4 Nxd4 18. Qxd4 Qxd4 19. Rxd4 Be6 20. Nd5 Nxd5 21. Bxd5 c6 22. Bxe6 fxe6 23. e5 dxe5 24. Re4 Rd4 25. Rhe1 Rhd8 26. Rxd4 Rxd4 27. Rxe5 Rxa4 28. Rxe6 Ra1+ 29. Kd2 Rg1 30. g3 Rg2+ 31. Re2 Rg1 32. Ke3 Kc7 33. Ke4 Rf1 34. Kf5 Rxf3+ 35. Kg6 a5 36. Kxh6 Rf5 37. Kg6 Rb5 38. b3 Rc5 39. h4 gxh4 40. gxh4 Rc3 41. Rh2 Rg3+ 42. Kf5 Rf3+ 43. Kg4 Rf1 44. h5 Rg1+ 45. Kh4 b5 46. h6 Rg8 47. h7 Rh8 48. Kg5 a4 49. Kg6 a3 50. c3 b4 51. cxb4 Kb6 52. Ra2 Kb5 53. Rxa3 Kxb4 54. Ra6 Kb5 55. Ra7 Kb6 56. Rf7 1-0

[Event "Regionalliga NordN 9091"]
[Site "Germany"]
[Date "1990.11.11"]
[Round "2.6"]
[White "Kernchen, Michael"]
[Black "Osterkorn, Christoph"]
[Result "0-1"]
[ECO "C65"]
[PlyCount "60"]
[EventDate "1990.10.07"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]
[WhiteTeam "Bad Schwartau"]
[BlackTeam "Leck MTV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. 0-0 Nf6 5. d3 d6 6. c3 0-0 7. Bg5 h6 8. Bh4 Qe7 9. h3 Bd7 10. Nbd2 a6 11. Ba4 Ba7 12. Bc2 Kh7 13. d4 Rg8 14. Bg3 g6 15. Re1 Nh5 16. Bh2 f6 17. Nf1 Qf8 18. Ne3 Ne7 19. dxe5 fxe5 20. Nxe5 dxe5 21. Qxd7 Rd8 22. Qxc7 Rd2 23. Rf1 Rg7 24. Bxe5 Rf7 25. Bd4 Nf5 26. Qe5 Nxd4 27. cxd4 Bxd4 28. Qa5 Rdxf2 29. Rxf2 Bxe3 30. Raf1 Bxf2+ 0-1

[Event "Regionalliga NordN 9091"]
[Site "Germany"]
[Date "1990.10.07"]
[Round "1.5"]
[White "Homuth, Manfred"]
[Black "Osterkorn, Christoph"]
[Result "0-1"]
[ECO "C64"]
[PlyCount "92"]
[EventDate "1990.10.07"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]
[WhiteTeam "Kiel"]
[BlackTeam "Leck MTV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. 0-0 Nd4 5. Nxd4 Bxd4 6. c3 Bb6 7. d4 c6 8. Bc4 d6 9. f4 exd4 10. cxd4 Ne7 11. f5 d5 12. exd5 Bxf5 13. Nc3 Bg6 14. Bg5 f6 15. Bxf6 gxf6 16. Rxf6 Rf8 17. Re6 Rf4 18. Ne2 Re4 19. Qa4 Rxe6 20. dxe6 Qd6 21. Qb3 0-0-0 22. Rd1 Nd5 23. Qh3 Re8 24. Nc3 Kb8 25. Qf3 Qxe6 26. Nxd5 cxd5 27. Bxd5 Qe3+ 28. Qxe3 Rxe3 29. Kf2 Re7 30. Bb3 Re4 31. Kf3 Rxd4 32. Re1 Rd7 33. g4 Rd2 34. Re2 Rxe2 35. Kxe2 Bd4 36. h4 Bxb2 37. h5 Bb1 38. Kf3 Kc7 39. g5 Kd6 40. Kg4 Ke7 41. Bd5 b6 42. Bc4 Bc2 43. Bg8 b5 44. Bd5 b4 45. Kf4 a5 46. Be4 Bc1+ 0-1

[Event "Regionalliga NordN"]
[Site "Germany"]
[Date "1990.??.??"]
[Round "?"]
[White "Bethe, Stephan"]
[Black "Osterkorn, Christoph"]
[Result "1/2-1/2"]
[ECO "C45"]
[PlyCount "82"]
[EventDate "1990.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. a4 a6 7. Nc3 d6 8. Qe2 Nf6 9. Nd5 Nxd5 10. exd5+ Ne7 11. Bg5 f6 12. Be3 Bxe3 13. Qxe3 0-0 14. 0-0-0 Re8 15. Qd2 Bf5 16. Bd3 Qd7 17. a5 Qa4 18. Rhe1 Bxd3 19. Qxd3 Ng6 20. Kb1 Rxe1 21. Rxe1 Re8 22. Qc3 Rxe1+ 23. Qxe1 Ne5 24. g3 g5 25. Qe3 Qc4 26. f4 gxf4 27. gxf4 Nf7 28. Nd4 Qxd5 29. Qe8+ Kg7 30. Ne6+ Kg6 31. Qg8+ Kf5 32. Ng7+ Kxf4 33. Qxh7 Qd1+ 34. Ka2 Qd5+ 35. Kb1 Ke3 36. Nf5+ Kd2 37. Qg6 Qh1+ 38. Ka2 Qd5+ 39. Kb1 Qh1+ 40. Ka2 Qd5+ 41. Kb1 Qh1+ 1/2-1/2

[Event "Regionalliga NordN"]
[Site "Germany"]
[Date "1990.??.??"]
[Round "?"]
[White "Cording, Thomas"]
[Black "Osterkorn, Christoph"]
[Result "0-1"]
[ECO "C29"]
[PlyCount "56"]
[EventDate "1990.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Nf3 Be7 6. Qe2 Nxc3 7. bxc3 0-0 8. g3 f6 9. Bg2 fxe5 10. Nxe5 Nc6 11. Bb2 Nxe5 12. Qxe5 c6 13. 0-0-0 Bf6 14. Qh5 b5 15. Rdf1 Qd6 16. Rf4 Be6 17. Rhf1 a5 18. a3 Rab8 19. Bh3 Bxh3 20. Qxh3 Rfe8 21. Qg4 Qe5 22. Kb1 Qe2 23. R1f3 Qd1+ 24. Ka2 Re1 25. Rxf6 Qb1+ 26. Kb3 a4+ 27. Kb4 Re4+ 28. Qxe4 dxe4 0-1

[Event "Regionalliga NordN"]
[Site "Germany"]
[Date "1990.??.??"]
[Round "?"]
[White "Heuer, Rainer"]
[Black "Osterkorn, Christoph"]
[Result "1/2-1/2"]
[ECO "C29"]
[PlyCount "28"]
[EventDate "1990.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. d3 Bb4 6. dxe4 Qh4+ 7. Ke2 Bxc3 8. bxc3 Bg4+ 9. Nf3 dxe4 10. Qd4 Bh5 11. Ke3 Bxf3 12. gxf3 Qe1+ 13. Kf4 Qh4+ 14. Ke3 Qe1+ 1/2-1/2

[Event "Regionalliga NordN"]
[Site "Germany"]
[Date "1990.??.??"]
[Round "?"]
[White "Kudoke, Willy"]
[Black "Osterkorn, Christoph"]
[Result "0-1"]
[ECO "E67"]
[PlyCount "116"]
[EventDate "1990.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. d4 d6 6. Nf3 Nbd7 7. 0-0 e5 8. dxe5 dxe5 9. Bg5 h6 10. Bxf6 Qxf6 11. h3 c6 12. Qc2 Nc5 13. Nd2 Qe7 14. Rad1 f5 15. e3 e4 16. Ne2 Nd3 17. b3 Be6 18. Nf4 Nxf4 19. exf4 Rad8 20. Rfe1 Rd3 21. Nf1 Rfd8 22. Qe2 Bc3 23. Rxd3 Rxd3 24. Rc1 Qd6 25. h4 h5 26. Kh2 Kf7 27. Rc2 Qd4 28. Ne3 Rd2 29. Rxd2 Qxd2 30. Qxd2 Bxd2 31. Nc2 Ke7 32. Kg1 Kd6 33. Kf1 Kc5 34. Ke2 Bc3 35. f3 exf3+ 36. Bxf3 b5 37. cxb5 cxb5 38. Kd3 Bf6 39. Ne3 a5 40. Bd1 Bd4 41. a3 Bb2 42. a4 Bd4 43. axb5 Bxe3 44. Kxe3 Kxb5 45. Kd4 Kb4 46. Ke5 Bxb3 47. Bxb3 Kxb3 48. Kf6 a4 49. Kxg6 a3 50. Kxh5 a2 51. Kg5 a1Q 52. Kxf5 Kc4 53. h5 Qg7 54. g4 Kd5 55. g5 Qf7+ 56. Kg4 Ke4 57. h6 Qxf4+ 58. Kh5 Kf5 0-1

[Event "Regionalliga NordN"]
[Site "Germany"]
[Date "1990.??.??"]
[Round "?"]
[White "Kurth, Justus"]
[Black "Osterkorn, Christoph"]
[Result "1/2-1/2"]
[ECO "C24"]
[WhiteElo "2320"]
[PlyCount "55"]
[EventDate "1990.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 c6 4. Bb3 Bc5 5. Nf3 d6 6. Nc3 0-0 7. Ne2 Be6 8. Ng3 Nbd7 9. c3 Bxb3 10. Qxb3 Bb6 11. 0-0 Nc5 12. Qc2 Ne6 13. h3 Ne8 14. Rd1 g6 15. d4 f6 16. Be3 Qe7 17. a4 Kh8 18. a5 Bd8 19. c4 c5 20. dxc5 dxc5 21. a6 b6 22. Qa4 Nd4 23. Bxd4 exd4 24. Re1 Bc7 25. Nf1 Ng7 26. b4 Rae8 27. bxc5 Qxc5 28. Rad1 1/2-1/2

[Event "Regionalliga NordN"]
[Site "Germany"]
[Date "1990.??.??"]
[Round "?"]
[White "Osterkorn, Christoph"]
[Black "Petersen, Johannes"]
[Result "1-0"]
[ECO "A01"]
[PlyCount "107"]
[EventDate "1990.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. b3 d5 2. Bb2 Bg4 3. h3 Bh5 4. Nf3 Bxf3 5. exf3 Nd7 6. f4 e6 7. g3 Ngf6 8. Bg2 g6 9. d3 Bg7 10. Nd2 Nh5 11. Bxg7 Nxg7 12. 0-0 0-0 13. Nf3 c6 14. Ne5 Nxe5 15. fxe5 Rc8 16. Qd2 Qe7 17. c3 Rfd8 18. Rae1 c5 19. g4 b5 20. Rc1 Rc7 21. f4 c4 22. bxc4 bxc4 23. d4 Rb8 24. Rb1 Rcb7 25. Qc2 Rb6 26. Rxb6 Rxb6 27. Rb1 Qb7 28. Rxb6 Qxb6 29. Kf2 Qb5 30. Bf3 a5 31. Bd1 Kf8 32. Ke3 Kg8 33. Kd2 Kf8 34. Kc1 Ke7 35. Qb2 Qxb2+ 36. Kxb2 Kd7 37. Ka3 Kc6 38. Ba4+ Kb6 39. Kb2 h6 40. Ka3 h5 41. Bd7 hxg4 42. hxg4 Kc7 43. Bb5 Kd8 44. Ka4 Nh5 45. gxh5 gxh5 46. Kxa5 h4 47. Ba4 h3 48. Bd1 h2 49. Bf3 Kc7 50. Kb5 Kb7 51. a4 Kc7 52. a5 Kb7 53. a6+ Ka7 54. Ka5 1-0

[Event "Regionalliga NordN"]
[Site "Germany"]
[Date "1990.??.??"]
[Round "?"]
[White "Osterkorn, Christoph"]
[Black "Wiese, Hans Joachim"]
[Result "1/2-1/2"]
[ECO "A01"]
[PlyCount "54"]
[EventDate "1990.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. b3 d5 2. Bb2 Nf6 3. e3 c5 4. Bb5+ Bd7 5. Bxd7+ Qxd7 6. Nf3 Nc6 7. 0-0 e6 8. d4 cxd4 9. Nxd4 Rc8 10. Nd2 Bd6 11. c4 0-0 12. cxd5 Nxd5 13. Nc4 Rfd8 14. Qe2 Bb8 15. Rfd1 Qe7 16. Rac1 Nxd4 17. Bxd4 f6 18. Bb2 Rc6 19. g3 Rdc8 20. a3 b5 21. Na5 Rxc1 22. Rxc1 Rxc1+ 23. Bxc1 Nc3 24. Qc2 Qc7 25. Bb2 Qxa5 26. Qxc3 Qxc3 27. Bxc3 Kf7 1/2-1/2

[Event "Regionalliga NordN"]
[Site "Germany"]
[Date "1990.??.??"]
[Round "?"]
[White "Windt, Lothar"]
[Black "Osterkorn, Christoph"]
[Result "1/2-1/2"]
[ECO "C57"]
[PlyCount "135"]
[EventDate "1990.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 b5 6. Bxb5 Qxd5 7. Be2 Bb7 8. d3 Nd4 9. Nf3 0-0-0 10. Nxd4 exd4 11. Bf3 Re8+ 12. Kf1 Qe5 13. Bxb7+ Kxb7 14. Qf3+ Qd5 15. Nd2 Bd6 16. a3 Re6 17. Qxd5+ Nxd5 18. Nc4 Rhe8 19. Bd2 Bf4 20. Re1 Bxd2 21. Rxe6 Rxe6 22. Nxd2 Nb6 23. Nb3 Na4 24. Nxd4 Rd6 25. Nf5 Rc6 26. Ne3 Nxb2 27. Ke2 Na4 28. Rb1+ Kc8 29. Rb4 Nb6 30. Kd2 Rf6 31. f3 Rh6 32. Rg4 g6 33. h3 Rh5 34. Rf4 f5 35. d4 Kd7 36. c4 Ke6 37. Kd3 c6 38. h4 Nd7 39. g3 Kd6 40. Kc3 Nf6 41. g4 Rxh4 42. Rxf5 Nd7 43. c5+ Ke6 44. d5+ cxd5 45. Rxd5 Rh1 46. Rd6+ Ke7 47. Nd5+ Ke8 48. Nf6+ Nxf6 49. Rxf6 Kd7 50. Kc4 Rc1+ 51. Kd5 Rd1+ 52. Ke4 Re1+ 53. Kf4 Rc1 54. Rf7+ Ke6 55. Rxh7 Rxc5 56. Rxa7 g5+ 57. Kg3 Rc2 58. Ra5 Kf6 59. Rf5+ Kg6 60. a4 Ra2 61. a5 Kh6 62. Rb5 Kg6 63. Rb6+ Kg7 64. Rb7+ Kg6 65. Rb5 Kh6 66. Re5 Kg6 67. Re6+ Kf7 68. Re5 1/2-1/2

[Event "Regionalliga NordN"]
[Site "Germany"]
[Date "1989.??.??"]
[Round "?"]
[White "Horacek, Helmut"]
[Black "Osterkorn, Christoph"]
[Result "0-1"]
[ECO "C56"]
[PlyCount "76"]
[EventDate "1989.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. e5 Ne4 6. Bd5 Nc5 7. Bxc6 dxc6 8. Qxd4 Bf5 9. Qc4 Qd5 10. Qe2 Qe4 11. Nc3 Qxe2+ 12. Nxe2 Bxc2 13. 0-0 Bd3 14. Re1 Ne6 15. Nf4 Rd8 16. Nxd3 Rxd3 17. Be3 Bc5 18. Bxc5 Nxc5 19. Rac1 Ne6 20. Rc4 Ke7 21. Kf1 Rhd8 22. h4 h6 23. Rec1 Rd1+ 24. Rxd1 Rxd1+ 25. Ke2 Rd5 26. g3 Ra5 27. a3 Rb5 28. b4 c5 29. Ke3 cxb4 30. axb4 a5 31. bxa5 Rxa5 32. Ke4 b5 33. Rc2 Ra4+ 34. Kd5 b4 35. Rb2 c5 36. Nd2 Ra1 37. Ne4 Rd1+ 38. Kc4 Rd4+ 0-1

[Event "Regionalliga NordN"]
[Site "Germany"]
[Date "1989.??.??"]
[Round "?"]
[White "Koepcke, Hans Peter"]
[Black "Osterkorn, Christoph"]
[Result "0-1"]
[ECO "C44"]
[PlyCount "52"]
[EventDate "1989.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Qa4 Bd7 5. exd5 Nd4 6. Qd1 Nxf3+ 7. Qxf3 Nf6 8. Bc4 e4 9. Qe2 Bd6 10. d4 h6 11. h3 0-0 12. 0-0 Bf5 13. Be3 Qd7 14. Nd2 Rae8 15. Rae1 Bg6 16. f4 exf3 17. Qxf3 b5 18. Be2 Nxd5 19. Bf2 Bf4 20. Nb3 Be4 21. Nc5 Bxf3 22. Nxd7 Bxe2 23. Nxf8 Kxf8 24. g3 Bxf1 25. gxf4 Rxe1 26. Bxe1 Bxh3 0-1

[Event "Regionalliga NordN"]
[Site "Germany"]
[Date "1989.??.??"]
[Round "?"]
[White "Osterkorn, Christoph"]
[Black "Gierke, Axel"]
[Result "1-0"]
[ECO "A01"]
[PlyCount "101"]
[EventDate "1989.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. e3 d5 4. Bb5 Bd6 5. f4 Qe7 6. Nf3 Bg4 7. fxe5 Bxf3 8. Qxf3 Bxe5 9. Bxe5 Qxe5 10. Bxc6+ bxc6 11. 0-0 Nf6 12. Nc3 0-0 13. Qf5 Rae8 14. Qxe5 Rxe5 15. Rf4 Ne4 16. d4 Nxc3 17. dxe5 Ne2+ 18. Kf2 Nxf4 19. exf4 Rb8 20. Rd1 Kf8 21. Rd3 Rb5 22. Ke3 Ke7 23. a4 Ra5 24. Rd4 Ke6 25. Rb4 c5 26. Rb8 g6 27. g4 Ra6 28. Rh8 Rb6 29. Rxh7 Rb4 30. Rh8 c4 31. bxc4 Rxc4 32. Re8+ Kd7 33. Rf8 Ke7 34. Ra8 Rxa4 35. h4 c5 36. h5 gxh5 37. gxh5 Ra3+ 38. Kf2 Rh3 39. Rxa7+ Ke6 40. h6 d4 41. Kg2 Rh5 42. Ra3 Kf5 43. Rh3 Rxh3 44. Kxh3 Kg6 45. Kg4 Kxh6 46. Kf5 Kh5 47. Ke4 Kg4 48. f5 Kg5 49. e6 fxe6 50. fxe6 Kf6 51. Kd5 1-0

[Event "Regionalliga NordN"]
[Site "Germany"]
[Date "1989.??.??"]
[Round "?"]
[White "Osterkorn, Christoph"]
[Black "Semmler, Guenter"]
[Result "0-1"]
[ECO "A01"]
[PlyCount "86"]
[EventDate "1989.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. e3 Nf6 4. Nf3 d6 5. Be2 Be7 6. d4 e4 7. Nfd2 d5 8. Ba3 Bxa3 9. Nxa3 Ne7 10. c4 c6 11. c5 0-0 12. Nc2 Ng6 13. h4 Re8 14. b4 a6 15. a4 Bd7 16. Nb3 Qc8 17. Na5 Re7 18. h5 Nf8 19. Rh4 g5 20. hxg6 Nxg6 21. Rh2 Qc7 22. Rh1 Rae8 23. Kd2 Qc8 24. Qg1 Bg4 25. Qh2 Bxe2 26. Kxe2 Qg4+ 27. Kd2 Qg5 28. Rag1 h5 29. f4 exf3 30. gxf3 Qf5 31. Qh3 Qxh3 32. Rxh3 Kh7 33. Rg5 Kh6 34. Rf5 Kg7 35. Nb3 Rh8 36. Nc1 h4 37. Nd3 Nh5 38. Nce1 f6 39. Ng2 Ng3 40. Nxh4 Nf1+ 41. Ke1 Rxe3+ 42. Kxf1 Rxd3 43. Ke2 Rb3 0-1

[Event "Regionalliga NordN"]
[Site "Germany"]
[Date "1989.??.??"]
[Round "?"]
[White "Petersen, Johannes"]
[Black "Osterkorn, Christoph"]
[Result "0-1"]
[ECO "C27"]
[PlyCount "42"]
[EventDate "1989.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. Bc4 Bb4 4. Nge2 0-0 5. 0-0 Nc6 6. a3 Bxc3 7. Nxc3 Nxe4 8. Nxe4 d5 9. Bd3 dxe4 10. Bxe4 Qd6 11. c3 f5 12. Bc2 b6 13. b4 Ba6 14. Re1 e4 15. f3 Bd3 16. Bxd3 exd3 17. Qb3+ Kh8 18. Bb2 Rfe8 19. c4 Nd4 20. Bxd4 Qxd4+ 21. Kf1 Re2 0-1

[Event "Regionalliga NordN"]
[Site "Germany"]
[Date "1989.??.??"]
[Round "?"]
[White "Sperlich, Olaf"]
[Black "Osterkorn, Christoph"]
[Result "0-1"]
[ECO "C27"]
[PlyCount "54"]
[EventDate "1989.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. Bc4 Bb4 4. d3 c6 5. f4 exf4 6. e5 d5 7. exf6 Qxf6 8. Nf3 Bxc3+ 9. bxc3 dxc4 10. d4 Be6 11. Ba3 Nd7 12. 0-0 0-0-0 13. Rb1 g5 14. Qc1 g4 15. Ne1 f3 16. Qb2 b6 17. Bd6 Bd5 18. Qa3 Kb7 19. Be7 Qe6 20. Bxd8 Qe3+ 21. Rf2 Rxd8 22. Qc1 Qxc3 23. Qf4 Re8 24. Kf1 Rxe1+ 25. Rxe1 fxg2+ 26. Ke2 Qxc2+ 27. Qd2 Bf3+ 0-1

[Event "Regionalliga NordN"]
[Site "Germany"]
[Date "1989.??.??"]
[Round "?"]
[White "Teloudis, Angelis"]
[Black "Osterkorn, Christoph"]
[Result "1-0"]
[ECO "C26"]
[PlyCount "63"]
[EventDate "1989.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. g3 d5 4. exd5 Nxd5 5. Bg2 Nxc3 6. bxc3 Bd6 7. Nf3 Nd7 8. 0-0 0-0 9. d4 c6 10. Re1 Qc7 11. Qe2 exd4 12. cxd4 b6 13. Nh4 Nf6 14. Bg5 Bg4 15. f3 Rae8 16. Qd2 Be6 17. Bxf6 gxf6 18. Qh6 Be7 19. f4 Qd7 20. Rad1 f5 21. Nf3 f6 22. Nh4 Bb4 23. Re2 Bc3 24. Nf3 Bd5 25. Rxe8 Qxe8 26. Kf2 Qe4 27. Rd3 Re8 28. Rxc3 Qe2+ 29. Kg1 Qd1+ 30. Bf1 Bxf3 31. Rxf3 Qxf3 32. Bc4+ 1-0

[Event "Regionalliga NordN"]
[Site "Germany"]
[Date "1989.??.??"]
[Round "?"]
[White "Toenjes, Andreas"]
[Black "Osterkorn, Christoph"]
[Result "1-0"]
[ECO "C56"]
[PlyCount "55"]
[EventDate "1989.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4. Nf3 Nc6 5. Nxd4 Nxe4 6. Qh5 Qf6 7. Nf3 Bc5 8. 0-0 d6 9. Nbd2 Nxf2 10. Rxf2 Bf5 11. Nb3 Bxf2+ 12. Kxf2 0-0 13. c3 Rae8 14. Bg5 Qg6 15. Qxg6 Bxg6 16. Nbd4 Ne5 17. Bb3 h6 18. Bh4 c6 19. Nxe5 dxe5 20. Nf3 e4 21. Nd4 e3+ 22. Ke2 Re4 23. Bg3 Rd8 24. Rd1 Kf8 25. Ne6+ fxe6 26. Rxd8+ Ke7 27. Rd4 Bh5+ 28. Ke1 1-0

