[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1989.??.??"]
[Round "9"]
[White "Crede, Dietmar"]
[Black "Siem, Bun Dji"]
[Result "0-1"]
[ECO "A14"]
[PlyCount "130"]
[EventDate "1989.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 c5 3. c4 e6 4. Bg2 Nf6 5. 0-0 Nc6 6. b3 Be7 7. e3 0-0 8. Bb2 b6 9. d3 Bb7 10. Nc3 Qd7 11. Qe2 Rfd8 12. Rfd1 Rac8 13. cxd5 exd5 14. d4 h6 15. Rac1 Nb4 16. Ne5 Qe6 17. a3 Nc6 18. Nxc6 Rxc6 19. Qf1 g5 20. Rd2 c4 21. b4 Rcc8 22. Re1 Ne4 23. Nxe4 dxe4 24. Bc3 g4 25. Rc1 Bd5 26. Qd1 h5 27. Bf1 h4 28. h3 gxh3 29. Qh5 Kg7 30. Kh2 Rh8 31. Qe5+ Qxe5 32. dxe5 hxg3+ 33. fxg3 Be6 34. Rd4 Kg6 35. Rxe4 Bg5 36. Re1 b5 37. Rd4 Rhd8 38. g4 Rxd4 39. exd4 Bxg4 40. d5 Rd8 41. Kg3 Bf5 42. d6 Rh8 43. Rd1 Rh4 44. Rd4 Rh8 45. Rd1 Be6 46. d7 Bd8 47. Rd2 Bc7 48. Rf2 h2 49. Rxh2 Rxh2 50. Kxh2 Bxd7 51. Kg1 Bb6+ 52. Kh2 Be3 53. Kg3 Be6 54. Bg2 Kf5 55. Bc6 Bc1 56. Bxb5 Bf4+ 57. Kf3 Bxe5 58. Bxe5 Kxe5 59. Ke3 Bd5 60. Bd7 f5 61. a4 f4+ 62. Kd2 Kd4 63. b5 c3+ 64. Kc2 Be4+ 65. Kc1 Kc5 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1989.??.??"]
[Round "8"]
[White "Gelzenleichter, Siegfried"]
[Black "Siem, Bun Dji"]
[Result "0-1"]
[ECO "E05"]
[PlyCount "92"]
[EventDate "1989.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. g3 Be7 5. Bg2 0-0 6. 0-0 dxc4 7. Ne5 c5 8. dxc5 Bxc5 9. Qc2 Qc7 10. Nxc4 Nc6 11. Be3 Nb4 12. Qb3 Nbd5 13. Bxc5 Qxc5 14. e4 b5 15. Nca3 Nb4 16. Nc3 a6 17. e5 Nfd5 18. Nxd5 Nxd5 19. Rac1 Qd4 20. Rfe1 Bb7 21. Re4 Qb6 22. Rh4 Rac8 23. Rd1 Ne7 24. Nc4 Qc7 25. Nd6 Bxg2 26. Kxg2 Nf5 27. Rf4 Nxd6 28. Rxd6 Qc5 29. Rxa6 Qxe5 30. Rb4 Rc1 31. Rxb5 Qe4+ 32. Kh3 Rh1 33. Rb8 g5 34. Rxf8+ Kxf8 35. f3 Qe2 36. Ra8+ Kg7 37. Qc3+ e5 38. Kg4 Rd1 39. Ra5 Rd4+ 40. Kxg5 Qxh2 41. f4 f6+ 42. Kg4 h5+ 43. Kf3 e4+ 44. Ke3 Qg1+ 45. Ke2 Qd1+ 46. Kf2 Rd2+ 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1989.??.??"]
[Round "6"]
[White "Linke, Patrick"]
[Black "Siem, Bun Dji"]
[Result "0-1"]
[ECO "D36"]
[PlyCount "64"]
[EventDate "1989.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. cxd5 exd5 5. Nc3 Be7 6. Bg5 0-0 7. e3 c6 8. Bd3 h6 9. Bh4 Re8 10. Qc2 Nbd7 11. 0-0 Nf8 12. Rab1 N6h7 13. Bxe7 Qxe7 14. b4 Ng5 15. Nd2 a6 16. a4 Bg4 17. Rfc1 Rad8 18. b5 axb5 19. axb5 c5 20. dxc5 Qxc5 21. Nb3 Qd6 22. Bf5 Bxf5 23. Qxf5 Re5 24. Qd3 Ngh7 25. Rd1 Nf6 26. Nd4 Ree8 27. Rbc1 g6 28. Nf3 Ne6 29. Ne2 Ne4 30. Qb3 N6c5 31. Qb4 Nxf2 32. Rd4 Nfd3 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1989.??.??"]
[Round "11"]
[White "Siem, Bun Dji"]
[Black "Busch, Raimund"]
[Result "1/2-1/2"]
[ECO "C07"]
[BlackElo "2325"]
[PlyCount "102"]
[EventDate "1989.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd6 7. 0-0 Nf6 8. Nb3 Nc6 9. Nbxd4 Nxd4 10. Nxd4 Bd7 11. c3 Qc7 12. Qe2 Bd6 13. h3 0-0 14. Bg5 Bh2+ 15. Kh1 Bf4 16. Bxf4 Qxf4 17. Rae1 Rac8 18. Bb3 Rc5 19. Qe3 Qxe3 20. Rxe3 Rfc8 21. Rfe1 Nd5 22. Bxd5 Rxd5 23. Re5 Rcc5 24. Rxd5 Rxd5 25. Re2 e5 26. Nf3 f6 27. Rd2 Bc6 28. b4 Kf7 29. c4 Rxd2 30. Nxd2 g5 31. f3 b5 32. cxb5 Bxb5 33. Ne4 Ke6 34. Nc3 Bc6 35. Kh2 Kf5 36. Kg3 h5 37. Kf2 h4 38. Ke3 Ke6 39. a4 f5 40. b5 Bb7 41. a5 Kd6 42. Na4 a6 43. bxa6 Bxa6 44. Nb6 Kc6 45. Kf2 Bb7 46. Ke3 Ba6 47. Kf2 Kd6 48. Ke3 Bb7 49. Nc4+ Ke6 50. Nb6 Ba6 51. Na8 Kd6 1/2-1/2

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1989.??.??"]
[Round "5"]
[White "Siem, Bun Dji"]
[Black "Garkov, Mitko"]
[Result "0-1"]
[ECO "C05"]
[BlackElo "2415"]
[PlyCount "112"]
[EventDate "1989.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. exd5 exd5 5. Bd3 Bd6 6. Ngf3 0-0 7. 0-0 Nc6 8. c3 Bg4 9. h3 Bh5 10. Re1 Qd7 11. Nf1 Rae8 12. Ne3 Bg6 13. Bf1 Ne7 14. Ne5 Bxe5 15. dxe5 Ne4 16. Ng4 Nc5 17. g3 Rd8 18. Be3 Ne6 19. Qd2 c5 20. Bh6 Kh8 21. Bg5 Nxg5 22. Qxg5 h6 23. Qd2 Bf5 24. Be2 Ng6 25. f4 Be6 26. Kh2 Ne7 27. Nf2 Nc6 28. Rg1 d4 29. Rgd1 Qe7 30. c4 d3 31. Bxd3 Bxc4 32. Qe3 Bxd3 33. Nxd3 Rd4 34. Nf2 Rfd8 35. a3 Qe6 36. Qf3 Qf5 37. Qe3 g5 38. fxg5 Qxg5 39. Qxg5 hxg5 40. Rxd4 Rxd4 41. Rd1 Rxd1 42. Nxd1 Nxe5 43. g4 Kg7 44. Kg3 Kg6 45. h4 gxh4+ 46. Kxh4 b5 47. Kg3 c4 48. Kf4 Nd3+ 49. Ke3 Kg5 50. b3 Ne5 51. Ke4 f6 52. a4 cxb3 53. axb5 Kxg4 54. Kd4 Kf3 55. Nb2 Ke2 56. Na4 Kd2 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1989.??.??"]
[Round "10"]
[White "Siem, Bun Dji"]
[Black "Peist, Juergen"]
[Result "1/2-1/2"]
[ECO "C01"]
[BlackElo "2350"]
[PlyCount "61"]
[EventDate "1989.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. d4 Nc6 5. c3 Bd6 6. Bd3 Bg4 7. 0-0 Nge7 8. Re1 Qd7 9. Bg5 f6 10. Bh4 0-0-0 11. Nbd2 h5 12. Bg3 Bxg3 13. fxg3 Rde8 14. Qc2 Kb8 15. Re2 Nc8 16. Rae1 Rxe2 17. Rxe2 Re8 18. h3 Rxe2 19. Bxe2 Bf5 20. Bd3 N6e7 21. Nh4 Bxd3 22. Qxd3 Qe6 23. Nf1 b6 24. Ng6 Qf7 25. Nxe7 Nxe7 26. Nd2 Qe6 27. Kf2 Nf5 28. b3 g5 29. Qf3 h4 30. g4 Nd6 31. Qe3 1/2-1/2

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1989.??.??"]
[Round "3"]
[White "Siem, Bun Dji"]
[Black "Prandstetter, Eduard"]
[Result "0-1"]
[ECO "C05"]
[BlackElo "2415"]
[PlyCount "130"]
[EventDate "1989.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. exd5 exd5 5. Ngf3 Bd6 6. Bd3 0-0 7. 0-0 Nc6 8. c3 Ne7 9. Ne5 c6 10. Qc2 Qc7 11. Ndf3 Ng6 12. Re1 Ng4 13. h3 N4xe5 14. dxe5 Nxe5 15. Bxh7+ Kh8 16. Nxe5 Bxe5 17. Bd3 g6 18. Bh6 Rg8 19. Qa4 Bf6 20. Bf4 Qd8 21. Be5 Kg7 22. Qf4 Be6 23. Re3 Bxe5 24. Qxe5+ Kf8 25. Rae1 Ke7 26. f4 Qd6 27. f5 Qxe5 28. Rxe5 gxf5 29. Bxf5 Kd6 30. Rxe6+ fxe6 31. Rxe6+ Kc7 32. g4 Rae8 33. Kf2 Rxe6 34. Bxe6 Rf8+ 35. Bf5 Kd6 36. Kg3 Ke5 37. Bd3 Kf6 38. h4 Kg7 39. g5 Re8 40. Kf4 Rf8+ 41. Bf5 c5 42. Ke5 Rh8 43. Kxd5 Rxh4 44. Kxc5 Rh2 45. b4 Rxa2 46. Be4 b6+ 47. Kb5 Re2 48. Bd5 Re1 49. Ka6 Ra1+ 50. Kb7 Rd1 51. Bc6 Ra1 52. Bb5 a5 53. Kxb6 a4 54. Bxa4 Rxa4 55. Kb5 Ra3 56. c4 Kf7 57. c5 Ke7 58. Kb6 Kd8 59. b5 Kc8 60. Kc6 Rg3 61. b6 Rxg5 62. b7+ Kb8 63. Kb6 Rg1 64. c6 Rc1 65. Kb5 Ka7 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1989.??.??"]
[Round "1"]
[White "Siem, Bun Dji"]
[Black "Sippel, Roman"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "107"]
[EventDate "1989.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. c3 e6 3. d4 d5 4. exd5 exd5 5. Nf3 Nf6 6. Bb5+ Bd7 7. Qe2+ Be7 8. 0-0 0-0 9. Bg5 a6 10. Bxd7 Nbxd7 11. dxc5 Bxc5 12. Nbd2 Re8 13. Qd3 Qb6 14. Nb3 Bf8 15. Be3 Qc7 16. Rad1 Rad8 17. h3 Nc5 18. Nxc5 Bxc5 19. Bxc5 Qxc5 20. Rfe1 h6 21. Nd4 Rxe1+ 22. Rxe1 b5 23. Nf5 Re8 24. Rxe8+ Nxe8 25. Qxd5 Qxd5 26. Ne7+ Kf8 27. Nxd5 f6 28. f4 g6 29. Kf2 Kf7 30. Ke3 Ke6 31. Nb4 Nc7 32. g3 h5 33. Kd3 g5 34. fxg5 fxg5 35. Ke4 Kf6 36. Nd5+ Nxd5 37. Kxd5 Kf5 38. Kd4 h4 39. gxh4 gxh4 40. Ke3 a5 41. Kf3 a4 42. a3 Ke5 43. Kg4 Ke4 44. Kxh4 Kf4 45. Kh5 Ke3 46. Kg4 Kd3 47. h4 Kc2 48. h5 Kxb2 49. h6 Kxa3 50. h7 Kb3 51. h8Q a3 52. Qe5 a2 53. Qxb5+ Kxc3 54. Qe5+ 1-0

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1989.??.??"]
[Round "4"]
[White "Windfuhr, Thomas"]
[Black "Siem, Bun Dji"]
[Result "0-1"]
[ECO "D53"]
[PlyCount "178"]
[EventDate "1989.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 0-0 6. e3 Nbd7 7. Qc2 h6 8. Bf4 c6 9. Bd3 a6 10. cxd5 exd5 11. h3 Re8 12. 0-0 Nf8 13. Na4 Ne6 14. Bh2 Ng5 15. Ne5 Bd6 16. f3 Ne6 17. Qc3 a5 18. a3 Qc7 19. Rfc1 b5 20. Qxc6 Qxc6 21. Rxc6 Bxe5 22. dxe5 Bd7 23. Rd6 bxa4 24. exf6 Nc5 25. Rxd5 Nxd3 26. Rxd3 Bb5 27. Rd5 Bc4 28. Rc5 Bb3 29. Be5 gxf6 30. Bd4 Kg7 31. Rac1 Kg6 32. Kf2 f5 33. g4 fxg4 34. hxg4 Be6 35. Rc7 Rec8 36. Kg3 Rxc7 37. Rxc7 h5 38. gxh5+ Kxh5 39. Kf4 Rd8 40. Rc5+ Rd5 41. Rc1 Rf5+ 42. Ke4 Kg6 43. f4 Rh5 44. Rg1+ Kh6 45. Be5 Bb3 46. Kd4 Rh2 47. Kc5 Rd2 48. Bd4 Rd1 49. Rg5 Rh1 50. Kb5 Rc1 51. Kxa5 Rc6 52. Rg1 f5 53. Kb5 Rc8 54. Rg5 Bc2 55. Be5 Kh7 56. Rg7+ Kh6 57. Ra7 Kg6 58. Rg7+ Kh6 59. Rg2 Bb3 60. Bf6 Re8 61. Rg3 Rc8 62. Be5 Bc2 63. Bd6 Bb3 64. Bc5 Kh7 65. Rg5 Bc2 66. Kc4 Rg8 67. Rh5+ Kg6 68. Rh2 Bb3+ 69. Kd3 Rd8+ 70. Bd4 Re8 71. Rg2+ Kh6 72. Rg5 Rc8 73. Bf6 Bc2+ 74. Kd4 Re8 75. Be5 Be4 76. Kc5 Rxe5+ 77. fxe5 Kxg5 78. e6 Kf6 79. Kd6 Bf3 80. e7 Bh5 81. Kd5 Kxe7 82. Ke5 Bg6 83. Kd5 Kf6 84. Kd6 Bf7 85. Kc5 Ke5 86. Kb4 Bb3 87. Kc3 Ke4 88. Kd2 Bc4 89. Kc3 Be2 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1989.??.??"]
[Round "2"]
[White "Zimmermann, Dirk"]
[Black "Siem, Bun Dji"]
[Result "0-1"]
[ECO "D03"]
[PlyCount "108"]
[EventDate "1989.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 d5 4. e3 Be7 5. Bd3 0-0 6. Nbd2 Nbd7 7. c3 h6 8. Bh4 Ne8 9. Bxe7 Qxe7 10. e4 dxe4 11. Nxe4 Nef6 12. Ng3 b6 13. 0-0 Bb7 14. Re1 Qd6 15. Qe2 Nd5 16. Ne4 Qe7 17. g3 a6 18. a4 Rfe8 19. Ne5 N5f6 20. f4 c5 21. Nc4 Nxe4 22. Bxe4 Bxe4 23. Qxe4 Rab8 24. f5 Nf6 25. Qh4 cxd4 26. Qxd4 Red8 27. Qf2 Qc7 28. Ne3 Ne4 29. Qc2 exf5 30. Nxf5 Qc5+ 31. Ne3 Nd2 32. Re2 Nf3+ 33. Kh1 Re8 34. Ng2 Qc4 35. Rxe8+ Rxe8 36. Qf2 Qc6 37. Rf1 Ne5 38. h3 f6 39. Kh2 Rd8 40. Nh4 Nc4 41. Nf5 Qxa4 42. Nd4 Qd7 43. Re1 Ne5 44. Ra1 a5 45. Qe2 Qd5 46. Rf1 Qc4 47. Qg2 b5 48. Nf5 Qd3 49. Rf2 Kh7 50. g4 Rd7 51. Ng3 b4 52. cxb4 axb4 53. Ne4 Rc7 54. Rd2 Nf3+ 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1988.??.??"]
[Round "?"]
[White "Kessler, Dietmar"]
[Black "Siem, Bun Dji"]
[Result "1-0"]
[ECO "A00"]
[PlyCount "107"]
[EventDate "1988.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. g3 Nf6 2. Bg2 d5 3. d3 e5 4. c4 dxc4 5. Qa4+ Nbd7 6. Qxc4 Be7 7. Nf3 c6 8. 0-0 0-0 9. Nbd2 Qc7 10. b3 Nb6 11. Qc3 Bd6 12. Bb2 Nfd5 13. Qc2 Re8 14. a3 Bf8 15. e4 Nf6 16. d4 exd4 17. Bxd4 Be6 18. a4 Qe7 19. Ng5 h6 20. Nxe6 Qxe6 21. a5 Nbd7 22. f4 c5 23. Bb2 Ng4 24. Nc4 b5 25. axb6 Nxb6 26. Qe2 Nf6 27. e5 Rab8 28. Rxa7 Nxc4 29. bxc4 Qb6 30. Ra2 Qb3 31. Bc1 Nd7 32. Rb2 Qc3 33. Rxb8 Nxb8 34. Bb2 Qb3 35. Bd5 Na6 36. Ra1 Nc7 37. Be4 Ne6 38. Bc2 Qb4 39. Qd3 g6 40. Bc3 Qb6 41. f5 Rd8 42. Qf1 Nd4 43. fxg6 fxg6 44. Be4 Qe6 45. Bxd4 Rxd4 46. Bd5 Rxd5 47. Ra8 Rd1 48. Qxd1 Qxc4 49. Qf3 Qc1+ 50. Kg2 Qc2+ 51. Kh3 Qf5+ 52. Qxf5 gxf5 53. e6 Kg7 54. Ra7+ 1-0

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1988.??.??"]
[Round "?"]
[White "Nagy, Janos"]
[Black "Siem, Bun Dji"]
[Result "0-1"]
[ECO "C48"]
[WhiteElo "2220"]
[PlyCount "70"]
[EventDate "1988.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bc5 5. 0-0 0-0 6. d3 d6 7. Bg5 Bg4 8. h3 Bxf3 9. Qxf3 Nd4 10. Qd1 Ne6 11. Bxf6 Qxf6 12. b4 Bb6 13. Nd5 Qh6 14. Bc4 Rae8 15. c3 Ng5 16. Qg4 Ne6 17. a4 c6 18. Nxb6 axb6 19. a5 Nf4 20. g3 Nxh3+ 21. Kg2 Ng5 22. Rh1 Qf6 23. Rh5 h6 24. axb6 d5 25. Bb3 Rd8 26. exd5 cxd5 27. Rah1 e4 28. dxe4 dxe4 29. Qf4 Qxc3 30. Rxg5 Qf3+ 31. Qxf3 exf3+ 32. Kxf3 hxg5 33. Bc2 g6 34. Kg4 Rd2 35. Be4 f5+ 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1988.??.??"]
[Round "?"]
[White "Prueske, Wolfgang"]
[Black "Siem, Bun Dji"]
[Result "0-1"]
[ECO "C29"]
[PlyCount "152"]
[EventDate "1988.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. d3 Qh4+ 6. g3 Nxc3 7. bxc3 Qd8 8. d4 Be7 9. Bg2 c6 10. Nh3 Na6 11. 0-0 0-0 12. Qh5 f6 13. exf6 Bxf6 14. Ba3 Qe8 15. Qxe8 Rxe8 16. Rae1 Rxe1 17. Rxe1 Bf5 18. Re2 Nc7 19. Nf4 Nb5 20. Bb2 Nd6 21. Ba3 Nb5 22. Bb2 Kf7 23. Nd3 Re8 24. Rf2 Bc8 25. Bf3 Nd6 26. Ne5+ Kg8 27. Bh5 Rd8 28. Re2 g6 29. Bf3 Re8 30. Ng4 Bg7 31. Rxe8+ Nxe8 32. Ne3 Nd6 33. Ba3 Nb5 34. Bb2 Bh6 35. Kf2 Nd6 36. Bc1 Be6 37. Ke2 Nb5 38. Bd2 Bxe3 39. Kxe3 Na3 40. Bd1 Nc4+ 41. Ke2 Bg4+ 42. Ke1 Bxd1 43. Kxd1 Kf7 44. Bc1 Nd6 45. Ke2 Kf6 46. Kf3 Ne4 47. c4 Nc3 48. cxd5 cxd5 49. a3 Kf5 50. g4+ Ke6 51. Ke3 Kd6 52. Bd2 Nb5 53. Bb4+ Ke6 54. a4 Nc7 55. Kd3 Ne8 56. c4 Nf6 57. h3 Ne4 58. Be1 Nd6 59. cxd5+ Kxd5 60. Kc3 Nc4 61. Bf2 Na5 62. Kb4 Nc6+ 63. Kc3 Nd8 64. Kd3 Ne6 65. Be3 b6 66. Kc3 Ke4 67. Bf2 Kd5 68. Be3 a6 69. Kd3 b5 70. axb5 axb5 71. Kc3 Ke4 72. Bf2 Nf4 73. h4 Nd5+ 74. Kd2 Kf3 75. Be1 Kxg4 76. Kd3 Kf4 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1988.??.??"]
[Round "?"]
[White "Sarosi, Zoltan"]
[Black "Siem, Bun Dji"]
[Result "1-0"]
[ECO "D24"]
[WhiteElo "2315"]
[PlyCount "103"]
[EventDate "1988.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 dxc4 5. e4 Bb4 6. e5 Nd5 7. Bd2 Bxc3 8. bxc3 b5 9. a4 c6 10. Ng5 f5 11. Qh5+ g6 12. Qh6 Qe7 13. h4 Qf8 14. Qxf8+ Kxf8 15. h5 gxh5 16. Be2 h6 17. Rxh5 Kg7 18. Nf3 Bd7 19. 0-0-0 Be8 20. Rh3 Nd7 21. Rdh1 h5 22. Ng5 Nf8 23. g4 h4 24. gxf5 exf5 25. Rxh4 Rxh4 26. Rxh4 a6 27. Rh1 Rb8 28. axb5 axb5 29. Kb2 Ra8 30. Rg1 Bg6 31. Bf3 Re8 32. Ra1 Re7 33. Ra6 Be8 34. Nh3 Ng6 35. Bg5 Rb7 36. Bxd5 cxd5 37. Bf6+ Kh6 38. Ra8 Bf7 39. Ng5 Nf4 40. Rh8+ Kg6 41. Nf3 Ng2 42. Rh2 Nf4 43. Nh4+ Kh5 44. Ng2+ Kg4 45. Rh4+ Kf3 46. Nxf4 b4 47. e6 bxc3+ 48. Kxc3 Rb3+ 49. Kc2 Be8 50. Nxd5 Kxf2 51. Nc3 Ke1 52. Rf4 1-0

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1988.??.??"]
[Round "?"]
[White "Siem, Bun Dji"]
[Black "Kebbekus, Thomas"]
[Result "1-0"]
[ECO "C56"]
[PlyCount "129"]
[EventDate "1988.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. e5 d5 6. Bb5 Ne4 7. Nxd4 Bd7 8. Bxc6 bxc6 9. 0-0 Bc5 10. f3 Ng5 11. Be3 0-0 12. Kh1 Bb6 13. Qd2 h6 14. Nc3 c5 15. Nb3 d4 16. Bxg5 Qxg5 17. Qxg5 hxg5 18. Ne4 Bf5 19. Nbd2 Rfe8 20. Nc4 Be6 21. Ned2 f6 22. exf6 gxf6 23. Rae1 Kf7 24. Re2 Bd5 25. Rfe1 Rxe2 26. Rxe2 Rd8 27. Kg1 c6 28. b3 Bc7 29. g3 f5 30. Kf2 Kf6 31. h3 Be6 32. Kg2 d3 33. cxd3 Rxd3 34. Re3 Rd4 35. Re2 Bd5 36. Kf2 Kf7 37. Re1 Rd3 38. Rc1 g4 39. hxg4 fxg4 40. Ke2 Rd4 41. f4 Ke6 42. Ne3 Ba5 43. Rc2 Bb4 44. Ndc4 Be4 45. Rc1 Bf3+ 46. Kf2 Rd3 47. Rc2 Bc3 48. Nb2 Rd8 49. Rxc3 Rd2+ 50. Kf1 Rxb2 51. Rxc5 Rxa2 52. Re5+ Kd6 53. Nc4+ Kd7 54. f5 Bg2+ 55. Ke1 Bd5 56. f6 Ra1+ 57. Kf2 Rb1 58. Re7+ Kd8 59. Ne5 Rb2+ 60. Ke3 Rxb3+ 61. Kf4 Rb4+ 62. Kg5 Rb5 63. Rd7+ Ke8 64. Rxa7 c5 65. Re7+ 1-0

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1988.??.??"]
[Round "?"]
[White "Siem, Bun Dji"]
[Black "Polajzer, Danilo"]
[Result "0-1"]
[ECO "B22"]
[BlackElo "2340"]
[PlyCount "114"]
[EventDate "1988.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 e6 5. Nf3 Nf6 6. Be2 Be7 7. Na3 cxd4 8. Nb5 Qd8 9. Nbxd4 0-0 10. 0-0 a6 11. Bf4 Nh5 12. Be3 Qc7 13. Qc2 Nf4 14. Bxf4 Qxf4 15. g3 Qc7 16. Rfe1 g6 17. Bf1 Bf6 18. Bg2 e5 19. Nb3 Bf5 20. Qe2 Nc6 21. Nc5 Rad8 22. Red1 Bg7 23. Ng5 h6 24. Nge4 Bc8 25. Nd2 Nb8 26. Nd3 f5 27. Nb4 Be6 28. Nf1 e4 29. Ne3 Qc5 30. Rxd8 Rxd8 31. Rd1 Rd7 32. Ra1 a5 33. Nbc2 Nc6 34. Na3 Ne5 35. Qc2 Nd3 36. Rf1 h5 37. Nb1 b5 38. b3 Rc7 39. Nd1 Be5 40. Qe2 a4 41. bxa4 bxa4 42. Nb2 Nxb2 43. Qxb2 Bxc3 44. Nxc3 Qxc3 45. Qb5 Qc6 46. Qe5 Bxa2 47. Rd1 Rc8 48. Rd6 Qe8 49. Qxe8+ Rxe8 50. Rxg6+ Kf7 51. Ra6 Bb3 52. Bf1 Rc8 53. Bb5 Rc1+ 54. Kg2 Ra1 55. Bd7 Bc4 56. Rxa4 Bf1+ 57. Kg1 Rd1 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1988.??.??"]
[Round "?"]
[White "Siem, Bun Dji"]
[Black "Reuther, Egon"]
[Result "1/2-1/2"]
[ECO "B22"]
[PlyCount "119"]
[EventDate "1988.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Nc6 6. Be2 cxd4 7. cxd4 e6 8. Nc3 Qd6 9. 0-0 Be7 10. Bg5 0-0 11. Qd2 b6 12. Rfd1 Bb7 13. Rac1 Rac8 14. h3 Rfd8 15. Qe3 Nd5 16. Nxd5 Qxd5 17. Bc4 Qd7 18. Qf4 Na5 19. Ne5 Qe8 20. Bxe7 Qxe7 21. Bd3 Bd5 22. b3 Qf6 23. Qe3 h6 24. Rxc8 Rxc8 25. Rc1 Rxc1+ 26. Qxc1 Qd8 27. Qf4 Qf6 28. Qc1 Qd8 29. b4 Nb7 30. a4 Nd6 31. b5 Qg5 32. Qxg5 hxg5 33. Bc2 Nc8 34. g3 Kf8 35. Kf1 Ke7 36. Ke1 f6 37. Nd3 Kd6 38. Nb4 Ne7 39. Ke2 Nc8 40. Ke3 Ne7 41. h4 gxh4 42. gxh4 Bc4 43. Kd2 Nd5 44. Nxd5 Kxd5 45. Ke3 Ba2 46. Kd3 Bc4+ 47. Ke3 e5 48. Be4+ Kd6 49. Bc2 Bf1 50. Bb3 Bg2 51. f4 Bh3 52. fxe5+ fxe5 53. Ke4 exd4 54. Kxd4 Bf5 55. Bd1 Be6 56. Bc2 Ba2 57. Bd1 Ke6 58. Ke4 Kf6 59. Kf4 Bb1 60. Bb3 1/2-1/2

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1988.??.??"]
[Round "?"]
[White "Siem, Bun Dji"]
[Black "Steil, Jochen Jacob"]
[Result "1-0"]
[ECO "B08"]
[BlackElo "2265"]
[PlyCount "69"]
[EventDate "1988.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 0-0 6. 0-0 Bg4 7. Be3 Nc6 8. Qd2 e5 9. d5 Ne7 10. Bh6 a6 11. a4 Nc8 12. Bg5 Qe8 13. h3 Bd7 14. Nh2 Kh8 15. Bh6 Bxh6 16. Qxh6 Ng8 17. Qd2 f5 18. exf5 gxf5 19. f4 Nge7 20. Nf3 Ng6 21. g3 Qe7 22. Kh2 Qg7 23. Rg1 e4 24. Nd4 c5 25. Ne6 Bxe6 26. dxe6 Re8 27. Qd5 Qf6 28. Qxb7 Ra7 29. Qc6 Qxe6 30. Bc4 Qe7 31. Nd5 Qd8 32. a5 Nce7 33. Qb6 Nc8 34. Qb3 Nce7 35. Qc3+ 1-0

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1988.??.??"]
[Round "?"]
[White "Thesing, Matthias"]
[Black "Siem, Bun Dji"]
[Result "1/2-1/2"]
[ECO "D24"]
[WhiteElo "2360"]
[PlyCount "123"]
[EventDate "1988.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. Nc3 Bf5 5. e3 e6 6. Bxc4 Nbd7 7. 0-0 Be7 8. Qe2 Ne4 9. Nd2 Ndf6 10. f3 Nxd2 11. Bxd2 Bg6 12. Rae1 0-0 13. Bc1 c6 14. e4 Qa5 15. Kh1 Rfe8 16. Be3 Rad8 17. Qf2 Qc7 18. Rc1 b6 19. Ne2 Qb7 20. Bb3 Rc8 21. Nf4 Nd7 22. Qe2 Red8 23. Rfd1 Nf8 24. Bc4 Qd7 25. Ba6 Rc7 26. Nd3 Bd6 27. Rd2 f6 28. Rdc2 e5 29. dxe5 fxe5 30. Rd2 Qe7 31. Rcd1 Rcd7 32. Bc4+ Kh8 33. Qf2 h6 34. Qg3 Kh7 35. Qg4 Bc7 36. h4 Qe8 37. Bb3 a5 38. a4 Bf7 39. Qf5+ Bg6 40. Qg4 Bf7 41. Bxf7 Qxf7 42. Qf5+ Qxf5 43. exf5 Rd5 44. Nf2 Rxd2 45. Rxd2 Rxd2 46. Bxd2 Nd7 47. Ne4 b5 48. b3 Nf6 49. Nxf6+ gxf6 50. h5 Bb6 51. axb5 cxb5 52. b4 a4 53. Bc1 Bd4 54. g4 Bc3 55. Ba3 Kg7 56. Kg2 Kf7 57. Kf2 Ke7 58. Ke2 Kd6 59. Kd3 Be1 60. Bc1 Bxb4 61. Bxh6 Ke7 62. Be3 1/2-1/2

