[Event "Hermannen op"]
[Site "Hermannen"]
[Date "1997.??.??"]
[Round "2"]
[White "Bothe, Michael"]
[Black "Sieben, Ferdi"]
[Result "1-0"]
[ECO "D38"]
[PlyCount "79"]
[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. c4 e6 2. Nf3 d5 3. cxd5 exd5 4. d4 Nf6 5. Nc3 Bb4 6. Bd2 c6 7. a3 Bd6 8. g3 h6 9. Bg2 Bf5 10. 0-0 Nbd7 11. b4 a6 12. Qb3 0-0 13. Rfc1 Nb6 14. Ne5 Nfd7 15. Nxd7 Qxd7 16. a4 Nc4 17. Be1 b5 18. axb5 axb5 19. e4 dxe4 20. Nxe4 Bxe4 21. Bxe4 Rac8 22. Qf3 f5 23. Bd3 Nb6 24. Ra6 Nd5 25. Raxc6 Nc7 26. Bxb5 Nxb5 27. Qd5+ Kh8 28. Qxb5 Qe6 29. Qc4 Rce8 30. Qxe6 Rxe6 31. d5 Rxe1+ 32. Rxe1 Bxb4 33. Rd1 Kg8 34. d6 Kf7 35. Rc7+ Ke6 36. Rxg7 Kf6 37. Rh7 Kg6 38. Rb7 Ba5 39. d7 Rd8 40. Rd6+ 1-0

[Event "Hermannen op"]
[Site "Hermannen"]
[Date "1997.??.??"]
[Round "1"]
[White "Sieben, Ferdi"]
[Black "Schuchardt, Guenter"]
[Result "0-1"]
[ECO "C64"]
[PlyCount "66"]
[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. Nc3 Bc5 3. Nf3 d6 4. d4 exd4 5. Nxd4 Nc6 6. Bb5 Bd7 7. Be3 Bb6 8. Qd2 Nf6 9. f3 h6 10. a3 Ne5 11. Be2 Qe7 12. Bf2 0-0-0 13. 0-0-0 Kb8 14. Rhf1 Rhe8 15. Nb3 Bxf2 16. Rxf2 Be6 17. Na5 d5 18. Qd4 Ng6 19. e5 Ng8 20. Nb5 c5 21. Qe3 d4 22. Qe4 Bd5 23. Qf5 Qxe5 24. Bd3 Qe3+ 25. Rfd2 a6 26. c4 Re5 27. Qg4 Be6 28. Qg3 axb5 29. Be4 b4 30. Nxb7 Rc8 31. Re1 Qf4 32. Qxf4 Nxf4 33. g3 Nd3+ 0-1

[Event "Kassel op"]
[Site "Kassel"]
[Date "1996.??.??"]
[Round "2"]
[White "Heisterhagen, Tilmann"]
[Black "Sieben, Ferdi"]
[Result "1/2-1/2"]
[ECO "C75"]
[PlyCount "84"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. 0-0 d6 5. c3 a6 6. Ba4 h6 7. d4 Bd7 8. Bb3 Ng6 9. Nbd2 Be7 10. Nc4 0-0 11. a4 a5 12. Be3 Qc8 13. Ne1 Bf6 14. d5 Nb8 15. Nd3 Qd8 16. Bc2 Bg5 17. f4 exf4 18. Bxf4 Nxf4 19. Nxf4 g6 20. e5 dxe5 21. Nxe5 Be8 22. Qd4 Nd7 23. Nf3 Bf6 24. Qd2 Kg7 25. Rae1 Rh8 26. Nd3 b6 27. Qf2 g5 28. Nd4 Nf8 29. Nf5+ Kg8 30. Ng3 Nd7 31. Nh5 Be7 32. Ng3 Rh7 33. Ne4 f5 34. Qxf5 Rg7 35. Ng3 Bg6 36. Qe6+ Kh8 37. Nf5 Nf8 38. Qe2 Bxf5 39. Rxf5 Qd6 40. c4 Kg8 41. Kh1 Rh7 42. Rff1 Rf7 1/2-1/2

[Event "Kassel op"]
[Site "Kassel"]
[Date "1996.??.??"]
[Round "7"]
[White "Riha, Frantisek"]
[Black "Sieben, Ferdi"]
[Result "1/2-1/2"]
[ECO "C60"]
[PlyCount "98"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 e5 3. Bb5 Nge7 4. 0-0 d6 5. h3 Bd7 6. d3 a6 7. Ba4 Na5 8. Bxd7+ Qxd7 9. Nh2 f5 10. f4 0-0-0 11. Nc3 fxe4 12. Nxe4 h6 13. Qg4 Qxg4 14. Nxg4 exf4 15. Bxf4 Nd5 16. Bd2 Nc6 17. a3 h5 18. Nh2 Be7 19. Rf5 Nf6 20. Ng5 Rde8 21. c3 g6 22. Rff1 Ne5 23. d4 Nc4 24. Bc1 Nd5 25. Nhf3 Nce3 26. Rf2 Bd8 27. Nf7 Rhg8 28. Nxd8 Kxd8 29. Bd2 Nf5 30. c4 Nb6 31. b3 Kd7 32. a4 Nc8 33. d5 Ng3 34. Ng5 Ne2+ 35. Kh2 Nd4 36. b4 c5 37. bxc5 dxc5 38. Rb1 b6 39. Rf7+ Re7 40. Rbf1 Nf5 41. Bc3 Rxf7 42. Nxf7 Ncd6 43. Ne5+ Kc7 44. Bd2 Re8 45. Bc3 Rg8 46. Rf3 Ne4 47. g4 hxg4 48. Nxg4 Nxc3 49. Rxc3 Re8 1/2-1/2

[Event "Kassel op"]
[Site "Kassel"]
[Date "1996.??.??"]
[Round "4"]
[White "Schildheuer, Kai"]
[Black "Sieben, Ferdi"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "76"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 h6 4. 0-0 Bc5 5. c3 Nf6 6. d4 exd4 7. cxd4 Bb6 8. e5 Nh7 9. Re1 0-0 10. Bf4 d5 11. exd6 cxd6 12. h3 Bf5 13. Nc3 Nf6 14. a3 Rc8 15. Ba2 Bc7 16. d5 Ne7 17. Rc1 a6 18. Qd2 Ng6 19. Bh2 Qd7 20. Kh1 Qd8 21. Nd4 Bd7 22. Bb1 Ne7 23. Qd3 Re8 24. Qf3 Bb8 25. Bf4 Ng6 26. Be3 Ne5 27. Qd1 Nc4 28. Qc2 Nxe3 29. fxe3 Ne4 30. Kg1 Qh4 31. Rf1 Qg5 32. Rf3 Ba7 33. Qd3 Bxd4 34. Qxd4 Ng3 35. Re1 Bxh3 36. Rf2 Bg4 37. Qd3 f5 38. e4 Qh4 0-1

[Event "Kassel op"]
[Site "Kassel"]
[Date "1996.??.??"]
[Round "5"]
[White "Sieben, Ferdi"]
[Black "Koch, U."]
[Result "0-1"]
[ECO "D02"]
[PlyCount "134"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. g3 c6 4. Bg2 Bf5 5. 0-0 Nbd7 6. Bf4 h6 7. Nc3 g5 8. Be5 Bg7 9. Re1 Nxe5 10. Nxe5 Nd7 11. Nf3 0-0 12. e4 dxe4 13. Nxe4 Qb6 14. Rb1 Rfe8 15. c3 Rad8 16. Qa4 Qc7 17. Rbd1 a5 18. Rd2 Nf6 19. Nxf6+ Bxf6 20. Qd1 Bg4 21. h3 Be6 22. Ne5 Qc8 23. Qh5 Bg7 24. Qf3 Rf8 25. b3 Rd6 26. Red1 Bxh3 27. Bxh3 Qxh3 28. Qg4 Qxg4 29. Nxg4 Rfd8 30. Ne3 e6 31. g4 b5 32. Kf1 c5 33. Nc2 cxd4 34. cxd4 Rd5 35. f3 e5 36. Rd3 exd4 37. Ne3 Rc5 38. Nf5 b4 39. R1d2 Rc3 40. Kg2 Rxd3 41. Rxd3 Kh7 42. Kf2 Bf6 43. Ke2 Kg6 44. Kf2 Rc8 45. Ke2 Rd8 46. Ng3 Be5 47. Ne4 f5 48. Nd2 fxg4 49. fxg4 h5 50. gxh5+ Kxh5 51. Kf1 Rf8+ 52. Kg2 g4 53. Nc4 Bf4 54. a3 bxa3 55. Nxa3 Rc8 56. Nc4 a4 57. Na3 axb3 58. Rxb3 Rc3 59. Rxc3 dxc3 60. Nc2 Be5 61. Ne3 Kg5 62. Kf1 Kf4 63. Ke2 Kg3 64. Nf1+ Kh3 65. Ne3 g3 66. Kf1 g2+ 67. Kg1 Bd4 0-1

[Event "Kassel op"]
[Site "Kassel"]
[Date "1996.??.??"]
[Round "1"]
[White "Sieben, Ferdi"]
[Black "Marth, Juergen"]
[Result "0-1"]
[ECO "A50"]
[PlyCount "98"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 b6 3. g3 Bb7 4. Bg2 g6 5. c4 Bg7 6. Nc3 0-0 7. 0-0 d6 8. Bg5 h6 9. Bxf6 Bxf6 10. e3 Nd7 11. Rc1 Re8 12. Re1 e5 13. d5 Bg7 14. e4 Nf8 15. Qd2 Nh7 16. Rc2 Re7 17. h3 Qf8 18. Nh4 Rae8 19. Kh1 Bc8 20. b4 Bf6 21. Nf3 Ng5 22. Nxg5 hxg5 23. g4 Qh6 24. Qd1 Kg7 25. Re3 Rh8 26. Kg1 a6 27. a4 Ree8 28. Ra2 Bd8 29. b5 a5 30. Qf3 Ref8 31. Ne2 f5 32. exf5 gxf5 33. gxf5 Rxf5 34. Qg3 Rhf8 35. f3 R8f7 36. Qg4 Bd7 37. Qg3 Kf8 38. Re4 Rf4 39. Nxf4 gxf4 40. Qh2 Rg7 41. Kf1 Rg3 42. Rf2 Bf5 43. Ree2 Bd3 44. Ke1 Bxc4 45. Rd2 Qg6 46. Rb2 Bh4 47. Kd1 Qd3+ 48. Rfd2 Bb3+ 49. Rxb3 Qxb3+ 0-1

[Event "Kassel op"]
[Site "Kassel"]
[Date "1996.??.??"]
[Round "3"]
[White "Sieben, Ferdi"]
[Black "Mertens, Michael"]
[Result "0-1"]
[ECO "E21"]
[PlyCount "40"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. d4 e6 5. c4 Bb4+ 6. Nc3 0-0 7. a3 Bxc3+ 8. bxc3 d6 9. 0-0 Nbd7 10. Re1 Ne4 11. Qc2 f5 12. Bf1 Qe8 13. h4 h6 14. Bf4 Qh5 15. Nh2 g5 16. hxg5 hxg5 17. f3 gxf4 18. g4 Qh4 19. fxe4 Bxe4 20. Nf3 Qg3+ 0-1

[Event "Kassel op"]
[Site "Kassel"]
[Date "1996.??.??"]
[Round "6"]
[White "Ullmann, Ralf"]
[Black "Sieben, Ferdi"]
[Result "1-0"]
[ECO "A06"]
[PlyCount "126"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. b3 d5 2. Bb2 Bf5 3. Nf3 Nc6 4. e3 Nf6 5. Bb5 a6 6. Bd3 Bg4 7. h3 Bh5 8. g4 Bg6 9. Nh4 Bxd3 10. cxd3 e6 11. g5 Nd7 12. f4 Nc5 13. Qe2 Nb4 14. 0-0 Nc2 15. Nf3 Nxa1 16. Bxa1 Nd7 17. Bb2 f6 18. h4 Bd6 19. d4 c6 20. d3 Qe7 21. Nbd2 h6 22. g6 h5 23. Rf2 0-0-0 24. Rg2 Rde8 25. Kf1 e5 26. dxe5 fxe5 27. f5 e4 28. dxe4 dxe4 29. Ng5 Nf6 30. Nc4 Rhg8 31. Nf7 Bc7 32. Ba3 c5 33. Qd1 Rd8 34. Nxd8 Rxd8 35. Rd2 b5 36. Rxd8+ Bxd8 37. Nd6+ Kb8 38. Bxc5 Ng4 39. Nf7 Qxc5 40. Qxd8+ Ka7 41. Qd7+ Kb8 42. Qd6+ Qxd6 43. Nxd6 Nxe3+ 44. Ke2 Ng2 45. f6 Nf4+ 46. Ke3 Nd5+ 47. Kxe4 Nxf6+ 48. Ke5 Kc7 49. Nf5 Ne8 50. Ke6 a5 51. Kf7 Kd7 52. Ng3 Nf6 53. Kxg7 Ke6 54. Kh6 Ng8+ 55. Kxh5 Kf6 56. Ne4+ Kg7 57. Kg5 Ne7 58. h5 a4 59. h6+ Kh8 60. Nf6 Nxg6 61. Kxg6 axb3 62. axb3 b4 63. Nd7 Kg8 1-0

[Event "Kassel op"]
[Site "Kassel"]
[Date "1994.??.??"]
[Round "6"]
[White "Calci, Fiorino"]
[Black "Sieben, Ferdi"]
[Result "1-0"]
[ECO "B06"]
[PlyCount "59"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "GER"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Bc4 e6 5. Nc3 Ne7 6. Be3 0-0 7. Qd2 Re8 8. h4 d5 9. Bb3 dxe4 10. Nxe4 Nf5 11. Bg5 f6 12. 0-0-0 Nd6 13. Nxd6 cxd6 14. Bh6 d5 15. Bxg7 Kxg7 16. g4 Nc6 17. g5 fxg5 18. h5 h6 19. hxg6 Ne7 20. Ne5 Nxg6 21. f4 Nxf4 22. Rxh6 Rf8 23. Rdh1 Rg8 24. Rh7+ Kf8 25. Rf7+ Ke8 26. Ba4+ Bd7 27. Bxd7+ Qxd7 28. Rxd7 Rd8 29. Rxb7 Rf8 30. Qb4 1-0

[Event "Kassel op"]
[Site "Kassel"]
[Date "1994.??.??"]
[Round "5"]
[White "Dobersalske, Bernd"]
[Black "Sieben, Ferdi"]
[Result "0-1"]
[ECO "D12"]
[PlyCount "86"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "GER"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nc3 c6 4. Nf3 Bf5 5. e3 e6 6. Bd2 Nbd7 7. a3 dxc4 8. Bxc4 Bd6 9. 0-0 0-0 10. Re1 e5 11. e4 Bg4 12. d5 Qc7 13. Rc1 a5 14. dxc6 bxc6 15. Be3 Bh5 16. Qc2 Bxf3 17. gxf3 Kh8 18. Red1 Rad8 19. Na4 c5 20. Be2 Be7 21. Nxc5 Nxc5 22. b4 Rxd1+ 23. Bxd1 axb4 24. Bxc5 Bxc5 25. axb4 Bxf2+ 26. Kxf2 Qb6+ 27. Qc5 Rb8 28. Qxb6 Rxb6 29. Rc8+ Ng8 30. Bb3 Rb7 31. Bd5 Re7 32. b5 g6 33. b6 Kg7 34. Rc7 Rxc7 35. bxc7 Ne7 36. Bb7 Kf6 37. c8Q Nxc8 38. Bxc8 Kg5 39. Kg3 f5 40. h4+ Kf6 41. Ba6 h6 42. Bc4 fxe4 43. fxe4 h5 0-1

[Event "Kassel op"]
[Site "Kassel"]
[Date "1994.??.??"]
[Round "1"]
[White "Menk, Rolf"]
[Black "Sieben, Ferdi"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "37"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "GER"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 h6 4. c3 Nf6 5. Bd5 Bd6 6. d4 0-0 7. Bxc6 dxc6 8. dxe5 Bxe5 9. Qxd8 Rxd8 10. Nxe5 Nxe4 11. Be3 Rd5 12. Nf3 Bg4 13. Nbd2 Nxd2 14. Nxd2 Rad8 15. f3 Bf5 16. 0-0-0 a6 17. Nb3 b6 18. Nd4 Bg6 19. Nxc6 1-0

[Event "Kassel op"]
[Site "Kassel"]
[Date "1994.??.??"]
[Round "3"]
[White "Schneider, Attila"]
[Black "Sieben, Ferdi"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "2380"]
[PlyCount "66"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "GER"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nxc6 bxc6 6. Bc4 Nf6 7. Bg5 Be7 8. Nc3 0-0 9. 0-0 h6 10. Be3 Bb7 11. Qf3 Kh8 12. Qh3 d5 13. exd5 cxd5 14. Bxd5 Bxd5 15. Rad1 Qa5 16. Nxd5 Nxd5 17. Bxh6 gxh6 18. Qxh6+ Kg8 19. Rfe1 Nf4 20. Re3 Rfd8 21. Rde1 Rd6 22. Rxe5 Qxe5 23. Kf1 Qxe1+ 24. Kxe1 Rxh6 25. g3 Nh3 26. c4 Bc5 27. f3 Nf2 28. Ke2 Rxh2 29. Ke1 Nd3+ 30. Kf1 Rxb2 31. a4 Kg7 32. f4 Rh8 33. f5 Rh1# 0-1

[Event "Kassel op"]
[Site "Kassel"]
[Date "1994.??.??"]
[Round "7"]
[White "Sieben, Ferdi"]
[Black "Becker, R."]
[Result "0-1"]
[ECO "D02"]
[PlyCount "96"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "GER"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. Nf3 Nc6 2. g3 d5 3. d4 g6 4. Bg2 Bg7 5. 0-0 Nf6 6. Nc3 0-0 7. Ne5 Nxe5 8. dxe5 Ng4 9. Qxd5 Bxe5 10. Qxd8 Rxd8 11. Nd5 Bd6 12. h3 Ne5 13. e4 c6 14. Ne3 f6 15. f4 Nf7 16. Rd1 g5 17. Nc4 gxf4 18. gxf4 Be6 19. Nxd6 Nxd6 20. Be3 b6 21. b3 Kh8 22. Rd2 Rg8 23. Kh2 Rac8 24. c4 c5 25. f5 Bf7 26. Bf4 Rcd8 27. Rad1 Bh5 28. Re1 Nf7 29. Rd5 Ne5 30. Re3 Nc6 31. a3 Nd4 32. Rd3 Rxd5 33. exd5 Nxf5 34. Bf3 Bxf3 35. Rxf3 Nd4 36. Re3 Re8 37. b4 Kg8 38. bxc5 bxc5 39. Bd6 Nf5 40. Bxc5 Nxe3 41. Bxe3 a6 42. Kg3 Rb8 43. Kf4 Kf7 44. Ke4 Rb3 45. c5 Rxa3 46. d6 exd6 47. cxd6 Rxe3+ 48. Kxe3 Ke6 0-1

[Event "Kassel op"]
[Site "Kassel"]
[Date "1994.??.??"]
[Round "4"]
[White "Sieben, Ferdi"]
[Black "Heisterhagen, Tilmann"]
[Result "1/2-1/2"]
[ECO "A49"]
[PlyCount "43"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "GER"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. d4 d6 5. Nbd2 0-0 6. 0-0 Nbd7 7. e4 e5 8. c3 c6 9. Re1 Re8 10. h3 Qc7 11. Qc2 a5 12. a4 b5 13. axb5 cxb5 14. Qd3 Ba6 15. b4 a4 16. d5 Nb6 17. Nb1 Rec8 18. Be3 Nc4 19. Nfd2 Nxd2 20. Nxd2 Nd7 21. Ra3 Nb6 22. Bf1 1/2-1/2

[Event "Kassel op"]
[Site "Kassel"]
[Date "1994.??.??"]
[Round "2"]
[White "Sieben, Ferdi"]
[Black "Wolf, Juergen"]
[Result "0-1"]
[ECO "A40"]
[PlyCount "88"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "GER"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. Nf3 g6 2. g3 Bg7 3. d4 e6 4. Bg2 Ne7 5. e4 d5 6. e5 c5 7. c3 Nbc6 8. 0-0 Qb6 9. Na3 0-0 10. Nc2 f6 11. exf6 Bxf6 12. Rb1 cxd4 13. cxd4 Nf5 14. Be3 Bd7 15. Qd2 Rac8 16. Rfd1 a5 17. Bf1 Bg7 18. Kg2 Rf7 19. Bf4 Rcf8 20. Be2 h6 21. h4 Kh7 22. b4 a4 23. b5 Nce7 24. Rh1 Nd6 25. Bxd6 Qxd6 26. Qb4 Qc7 27. Ne3 e5 28. dxe5 Bxe5 29. Qxa4 d4 30. Nf1 Nd5 31. Rb3 Nc3 32. Rxc3 dxc3 33. Qc2 Bf5 34. Qc1 Be4 35. N1h2 b6 36. Qe3 Qb7 37. Rc1 c2 38. Rxc2 Bxc2 39. Qxe5 Be4 40. Qc3 Ra8 41. a3 Qe7 42. a4 Rxa4 43. Qc1 Bd5 44. Kh3 Qxe2 0-1

