[Event "Troisdorf op"]
[Site "Troisdorf"]
[Date "2013.12.03"]
[Round "7"]
[White "Hahn, Juergen"]
[Black "Friedrich, Johannes"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "1659"]
[BlackElo "1442"]
[PlyCount "55"]
[EventDate "2013.10.22"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nc6 3. d3 d6 4. g3 Nf6 5. Bg2 Bg4 6. Nbd2 e6 7. b3 Be7 8. Bb2 Bxf3 9. Nxf3 0-0 10. 0-0 d5 11. cxd5 exd5 12. e3 Rc8 13. Rc1 b6 14. d4 Ne4 15. dxc5 bxc5 16. Qe2 Qa5 17. Ra1 Rfd8 18. Rfc1 Bf6 19. Bxf6 Nxf6 20. Qd2 Qxd2 21. Nxd2 Ne5 22. Rc2 d4 23. exd4 cxd4 24. Rac1 Rxc2 25. Rxc2 g6 26. Rc5 Ned7 27. Rc6 Re8 28. Kf1 1/2-1/2

[Event "Troisdorf op"]
[Site "Troisdorf"]
[Date "2013.11.26"]
[Round "6"]
[White "Lorenz, Steffen"]
[Black "Hahn, Juergen"]
[Result "1-0"]
[ECO "B86"]
[WhiteElo "1984"]
[BlackElo "1659"]
[PlyCount "63"]
[EventDate "2013.10.22"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Be7 8. g4 Nc6 9. g5 Nd7 10. Bxe6 Nde5 11. Nxc6 bxc6 12. Bxc8 Qxc8 13. f4 Ng6 14. Qf3 h6 15. h4 hxg5 16. h5 Nh4 17. Qg3 g4 18. Rxh4 Bxh4 19. Qxh4 g6 20. h6 Qe6 21. Bd2 Kd7 22. 0-0-0 f5 23. e5 Qe7 24. Qh2 d5 25. Be3 Rab8 26. Na4 Rb5 27. c4 Ra5 28. Nc3 Ke6 29. Bb6 Qb4 30. Bxa5 Qxa5 31. cxd5+ cxd5 32. Rxd5 1-0

[Event "Troisdorf op"]
[Site "Troisdorf"]
[Date "2013.11.19"]
[Round "5"]
[White "Hahn, Juergen"]
[Black "Sejdini, Valentin"]
[Result "1/2-1/2"]
[ECO "A20"]
[WhiteElo "1659"]
[BlackElo "1836"]
[PlyCount "75"]
[EventDate "2013.10.22"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. c4 e5 2. d3 Bc5 3. Nf3 d6 4. g3 f5 5. Bg2 Nf6 6. a3 a5 7. Nc3 c6 8. 0-0 0-0 9. Qc2 Nh5 10. Bd2 f4 11. Ne4 Bb6 12. c5 dxc5 13. Nxc5 Na6 14. b4 Qe7 15. Rfc1 Bf5 16. Qb2 Nxc5 17. bxc5 Bxc5 18. Qxe5 Qxe5 19. Nxe5 Bd4 20. gxf4 Bxa1 21. Rxa1 Be6 22. e3 a4 23. Rb1 Bb3 24. Rc1 Rad8 25. Bb4 Nxf4 26. exf4 Rxf4 27. Be4 Re8 28. Bc3 Rd8 29. f3 Bd5 30. Rb1 Bb3 31. Kf2 Rh4 32. Kg1 Rh6 33. Rb2 b5 34. Rg2 Rc8 35. Nd7 g6 36. Nf6+ Kf7 37. Ng4 Rh5 38. Nf6 1/2-1/2

[Event "Troisdorf op"]
[Site "Troisdorf"]
[Date "2013.11.12"]
[Round "4"]
[White "Hahn, Juergen"]
[Black "Reiter, Ute"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1659"]
[BlackElo "1176"]
[PlyCount "105"]
[EventDate "2013.10.22"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. e3 Bd7 4. c4 Nf6 5. Nbd2 Bd6 6. Be2 0-0 7. 0-0 Re8 8. b3 e5 9. dxe5 Bxe5 10. Nxe5 Rxe5 11. Bb2 Re8 12. Nf3 dxc4 13. Bxc4 Be6 14. Bxe6 Qxd1 15. Bxf7+ Kxf7 16. Rfxd1 Nc6 17. Kf1 h6 18. Rd2 Rad8 19. Rad1 Rxd2 20. Rxd2 Ke6 21. Ke2 Re7 22. h3 g6 23. g3 Nb4 24. h4 Nc6 25. Nd4+ Nxd4+ 26. Rxd4 h5 27. f3 c6 28. Rf4 Rf7 29. g4 Nd5 30. Re4+ Kd7 31. gxh5 gxh5 32. Re5 Rh7 33. f4 a6 34. Kf3 Ne7 35. Rg5 Ke6 36. e4 Rh6 37. f5+ Kf7 38. e5 c5 39. e6+ Ke8 40. Ke4 b5 41. Ba3 c4 42. bxc4 bxc4 43. Kd4 Rf6 44. Bxe7 Kxe7 45. Rxh5 c3 46. Kxc3 Kd6 47. Kd4 Rf8 48. Ke4 Rb8 49. Kf4 Rb4+ 50. Kg5 Rb7 51. Kf6 Rc7 52. Rh8 Kc6 53. e7 1-0

[Event "Troisdorf op"]
[Site "Troisdorf"]
[Date "2013.11.05"]
[Round "3"]
[White "Guelsen, Taylan"]
[Black "Hahn, Juergen"]
[Result "1-0"]
[ECO "E65"]
[WhiteElo "2044"]
[BlackElo "1659"]
[PlyCount "99"]
[EventDate "2013.10.22"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nf6 3. Nc3 g6 4. g3 d6 5. Bg2 Bg7 6. 0-0 0-0 7. d4 Nbd7 8. e3 a6 9. a4 Qc7 10. b3 Re8 11. Bb2 Nf8 12. Qc2 e6 13. Rfd1 Bd7 14. e4 Bc6 15. d5 exd5 16. Nxd5 Bxd5 17. exd5 N8d7 18. Re1 Rxe1+ 19. Rxe1 Re8 20. Rxe8+ Nxe8 21. Bxg7 Nxg7 22. Qe4 Qd8 23. Bh3 Nf6 24. Qe1 a5 25. Qd2 h5 26. Qf4 Qe7 27. Bc8 b6 28. Kg2 Nge8 29. Ng5 Qe5 30. Qxe5 dxe5 31. Kf3 Nd6 32. Bh3 Kg7 33. Ke3 Ng4+ 34. Bxg4 hxg4 35. Ne4 Nf5+ 36. Kd3 Kf8 37. Nf6 Ke7 38. Nxg4 f6 39. Ne3 Nd6 40. f3 f5 41. g4 Kf6 42. gxf5 gxf5 43. h4 Kg6 44. h5+ Kf6 45. h6 e4+ 46. fxe4 fxe4+ 47. Ke2 Nf7 48. Ng4+ Kf5 49. h7 Kg6 50. Ne5+ 1-0

[Event "Troisdorf op"]
[Site "Troisdorf"]
[Date "2013.10.29"]
[Round "2"]
[White "Hahn, Juergen"]
[Black "Quaegwer, Gerhard"]
[Result "1-0"]
[ECO "E07"]
[WhiteElo "1659"]
[BlackElo "1404"]
[PlyCount "120"]
[EventDate "2013.10.22"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. Nf3 e6 2. c4 Nf6 3. g3 Be7 4. Bg2 0-0 5. 0-0 c6 6. d4 d5 7. Nbd2 Nbd7 8. b3 b6 9. Bb2 Bb7 10. e3 Ne8 11. Rc1 c5 12. Re1 Rb8 13. cxd5 exd5 14. e4 cxd4 15. exd5 Bxd5 16. Nxd4 Bxg2 17. Kxg2 Nc5 18. Nc4 Qd5+ 19. Nf3 Qxd1 20. Rcxd1 Bf6 21. Nfe5 Bxe5 22. Nxe5 Nf6 23. Nc6 Rb7 24. Bxf6 gxf6 25. Re7 Rxe7 26. Nxe7+ Kg7 27. b4 Na4 28. Rd7 Ra8 29. Nf5+ Kg6 30. Nd6 Nc3 31. a3 a6 32. Nxf7 a5 33. Rd3 axb4 34. axb4 Na2 35. Nd6 Nxb4 36. Rb3 Nd5 37. Rb5 Ra5 38. Rb2 Ra4 39. f4 Rb4 40. Rxb4 Nxb4 41. Kf3 f5 42. Ke3 Kf6 43. Nb5 Ke6 44. Kd4 Nc6+ 45. Kc4 Na5+ 46. Kc3 Nb7 47. Nd4+ Kf6 48. Kc4 Nd6+ 49. Kd5 Ke7 50. Kc6 Nc4 51. Nxf5+ Kf6 52. Nd4 h5 53. h3 Ne3 54. Kxb6 Nf5 55. Ne2 Ne3 56. Kc5 Nd1 57. Kd4 Kf5 58. h4 Nf2 59. Ke3 Ng4+ 60. Kf3 Nf6 1-0

[Event "Troisdorf op"]
[Site "Troisdorf"]
[Date "2013.10.22"]
[Round "1"]
[White "Akstinat, Sven Holger"]
[Black "Hahn, Juergen"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2081"]
[BlackElo "1659"]
[PlyCount "53"]
[EventDate "2013.10.22"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. c3 d6 3. d4 Nf6 4. Bd3 Nbd7 5. Nf3 Qc7 6. 0-0 g6 7. Re1 e5 8. dxe5 dxe5 9. Na3 a6 10. Nc4 b5 11. Ne3 c4 12. Bc2 Bb7 13. Nd5 Nxd5 14. exd5 Bg7 15. d6 Qc8 16. Bf4 Qc5 17. Nxe5 Bxe5 18. Bxe5 Nxe5 19. Qd4 Qxd4 20. cxd4 Kd7 21. dxe5 Rhe8 22. f4 f5 23. Rad1 Rac8 24. Re3 h5 25. Kf2 Bc6 26. b3 Rb8 27. Rc3 1-0

[Event "Troisdorf op "]
[Site "Troisdorf"]
[Date "2010.12.07"]
[Round "7"]
[White "Witte, Volker"]
[Black "Hahn, Juergen"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "1672"]
[BlackElo "1694"]
[PlyCount "79"]
[EventDate "2010.10.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 Nbd7 8. Qc2 Nf8 9. Nge2 Ng6 10. h4 Ng4 11. h5 Nf8 12. Bf4 h6 13. f3 Nf6 14. 0-0-0 Ne6 15. g4 Bd6 16. Rdg1 Qc7 17. Bg3 Bd7 18. Bh4 Ng5 19. Bxg5 hxg5 20. Rh3 0-0-0 21. Rgh1 Rh6 22. Rg1 Re8 23. Nd1 Kb8 24. Ng3 Bxg3 25. Rhxg3 Rhh8 26. Qh2 c5 27. dxc5 Qxc5+ 28. Qc2 Qd6 29. Qb3 Rc8+ 30. Kb1 Be6 31. Bf5 Rc6 32. Bxe6 fxe6 33. Qd3 Rhc8 34. Nc3 Qb4 35. Ka1 e5 36. R3g2 d4 37. exd4 exd4 38. Ne2 Rc2 39. Qb3 Qe7 40. Qd3 1/2-1/2

[Event "Troisdorf op "]
[Site "Troisdorf"]
[Date "2010.11.26"]
[Round "6"]
[White "Hahn, Juergen"]
[Black "Hiendl, Robert"]
[Result "1/2-1/2"]
[ECO "E95"]
[WhiteElo "1694"]
[BlackElo "1541"]
[PlyCount "32"]
[EventDate "2010.10.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. 0-0 Na6 8. Re1 exd4 9. Nxd4 Nc5 10. Bf3 a5 11. Bg5 c6 12. g3 h6 13. Bf4 g5 14. Be3 Re8 15. Qc2 Qe7 16. Nf5 Bxf5 1/2-1/2

[Event "Troisdorf op "]
[Site "Troisdorf"]
[Date "2010.11.23"]
[Round "5"]
[White "Hiendl, David"]
[Black "Hahn, Juergen"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "1500"]
[BlackElo "1694"]
[PlyCount "37"]
[EventDate "2010.10.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. d4 Nf6 5. Bf4 e6 6. Nbd2 Be7 7. c3 Nbd7 8. Ne5 a6 9. Bd3 Nf8 10. 0-0 Ng6 11. Nxg6 hxg6 12. Nf3 Bd6 13. Bxd6 Qxd6 14. g3 0-0 15. Ne5 b6 16. Qa4 Bb7 17. Qb3 Rfc8 18. a4 Rc7 19. Rfc1 1/2-1/2

[Event "Troisdorf op "]
[Site "Troisdorf"]
[Date "2010.11.16"]
[Round "4"]
[White "Hahn, Juergen"]
[Black "Bilow, Albrecht"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "1694"]
[BlackElo "1535"]
[PlyCount "63"]
[EventDate "2010.10.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 Nbd7 6. Be2 0-0 7. 0-0 c5 8. d5 Nb6 9. Kh1 Ne8 10. Bf4 f6 11. Qd2 Nd7 12. Rae1 Ne5 13. Nxe5 fxe5 14. Bh6 Bd7 15. Bd1 Nf6 16. Bxg7 Kxg7 17. f4 exf4 18. Rxf4 Rf7 19. Ref1 Qg8 20. Qe3 Raf8 21. Kg1 Ne8 22. e5 Rxf4 23. Rxf4 Rxf4 24. Qxf4 Qf8 25. Qxf8+ Kxf8 26. e6 Bc8 27. Kf2 a6 28. Ba4 Nf6 29. Kf3 b6 30. Bc6 Kg7 31. Na4 b5 32. Nb6 1-0

[Event "Troisdorf op "]
[Site "Troisdorf"]
[Date "2010.11.09"]
[Round "3"]
[White "Correa Lira, Juan Ignacio"]
[Black "Hahn, Juergen"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "1555"]
[BlackElo "1694"]
[PlyCount "95"]
[EventDate "2010.10.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. f4 Nf6 2. Nf3 d5 3. e3 c5 4. b3 e6 5. Bb2 Be7 6. Bd3 Nc6 7. 0-0 0-0 8. Nc3 Nb4 9. Ne5 Nxd3 10. cxd3 a6 11. Rc1 Bd7 12. Nxd7 Qxd7 13. Na4 Qb5 14. Bxf6 Bxf6 15. Nxc5 Bb2 16. Rc2 Ba3 17. d4 Rac8 18. Na4 Rfd8 19. f5 exf5 20. Rxf5 Rc6 21. Rxc6 Qxc6 22. Nc3 g6 23. Rf2 b5 24. Qf3 f5 25. h4 Qe6 26. h5 Be7 27. hxg6 hxg6 28. Ne2 Bd6 29. Rf1 Rc8 30. Rc1 Rxc1+ 31. Nxc1 Bb4 32. Qd1 Qe4 33. Ne2 g5 34. Ng3 Qe6 35. Qh5 Qf6 36. Qe8+ Bf8 37. Qd7 Qf7 38. Qxf7+ Kxf7 39. Nxf5 g4 40. Kf2 Kf6 41. Ng3 Bh6 42. Ne2 b4 43. Kg3 Kf5 44. Kh4 Bg5+ 45. Kh5 Bd8 46. Ng3+ Kf6 47. Kxg4 Kg6 48. Ne2 1-0

[Event "Troisdorf op "]
[Site "Troisdorf"]
[Date "2010.11.02"]
[Round "2"]
[White "Hahn, Juergen"]
[Black "Gutt, Oswald"]
[Result "0-1"]
[ECO "D94"]
[WhiteElo "1694"]
[BlackElo "1905"]
[PlyCount "78"]
[EventDate "2010.10.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. e3 Bg7 5. Nf3 0-0 6. cxd5 Nxd5 7. Be2 c5 8. 0-0 Nc6 9. Nxd5 Qxd5 10. dxc5 Qxc5 11. Qa4 Bd7 12. Qb5 Qxb5 13. Bxb5 Rfd8 14. Ba4 Ne5 15. Nxe5 Bxa4 16. Nf3 Bc6 17. Nd4 Rac8 18. Bd2 Bxd4 19. exd4 Rxd4 20. Be3 Rd3 21. Bxa7 Rd2 22. b3 Ra8 23. Bc5 e5 24. a3 f5 25. f3 e4 26. fxe4 Bxe4 27. Rf2 Rad8 28. Rxd2 Rxd2 29. g3 Rg2+ 30. Kf1 Rxh2 31. Bd4 Kf7 32. a4 Ke6 33. a5 Rd2 34. Bf2 Rb2 35. a6 Bd3+ 36. Kg2 bxa6 37. Re1+ Be4+ 38. Kg1 Rxb3 39. Rc1 a5 0-1

[Event "Troisdorf op "]
[Site "Troisdorf"]
[Date "2010.10.26"]
[Round "1"]
[White "Rondorf, Jochen"]
[Black "Hahn, Juergen"]
[Result "0-1"]
[ECO "D46"]
[WhiteElo "1232"]
[BlackElo "1694"]
[PlyCount "106"]
[EventDate "2010.10.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d5 3. d4 e6 4. Nf3 Be7 5. e3 Nbd7 6. cxd5 exd5 7. Bd3 c6 8. 0-0 0-0 9. Re1 Re8 10. Qc2 Nf8 11. h3 Ng6 12. e4 dxe4 13. Nxe4 Nxe4 14. Bxe4 Bf6 15. Be3 Be6 16. b3 Bd5 17. Bxd5 Qxd5 18. Qc4 Qf5 19. Rad1 Rad8 20. b4 Nf4 21. Kh2 Nxh3 22. Qd3 Qg4 23. Re2 Nf4 24. Bxf4 Qxf4+ 25. g3 Qg4 26. Rde1 Rxe2 27. Qxe2 g6 28. Qe4 Qxe4 29. Rxe4 Kf8 30. g4 h6 31. Kg3 Rd5 32. Ne5 Bxe5+ 33. dxe5 Ke7 34. f4 a5 35. Kf3 Rd3+ 36. Ke2 Ra3 37. bxa5 Rxa2+ 38. Kf3 Rxa5 39. f5 g5 40. Re2 Ra3+ 41. Kf2 Ra4 42. Kg3 c5 43. e6 Ra3+ 44. Kg2 Ra6 45. Rb2 b6 46. exf7 Kxf7 47. Kf3 Kf6 48. Rd2 b5 49. Rd5 Rc6 50. Ke4 b4 51. Kd3 c4+ 52. Kd4 c3 53. Re5 c2 0-1

[Event "Troisdorf op"]
[Site "Troisdorf"]
[Date "2009.12.08"]
[Round "7"]
[White "Reuter, Gabriel"]
[Black "Hahn, Juergen"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1446"]
[BlackElo "1699"]
[PlyCount "46"]
[EventDate "2009.10.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Bd3 dxe4 4. Bxe4 Nf6 5. Qd3 Nxe4 6. Qxe4 Nd7 7. Bg5 Qa5+ 8. Bd2 Qd5 9. Nc3 Qxe4+ 10. Nxe4 e6 11. 0-0-0 Be7 12. f4 Nf6 13. Nf2 Bd7 14. g4 h6 15. Ne2 0-0-0 16. Rhg1 c5 17. c3 Bc6 18. Rg3 b6 19. b3 Bb7 20. dxc5 Bxc5 21. Be3 Ne4 22. Rxd8+ Rxd8 23. Nxe4 Ba3+ 0-1

[Event "Troisdorf op"]
[Site "Troisdorf"]
[Date "2009.12.01"]
[Round "6"]
[White "Hahn, Juergen"]
[Black "Margenberg, Volker"]
[Result "1/2-1/2"]
[ECO "D94"]
[WhiteElo "1699"]
[BlackElo "1555"]
[PlyCount "48"]
[EventDate "2009.10.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. e3 Bg7 5. Nf3 Nc6 6. cxd5 Nxd5 7. Be2 0-0 8. 0-0 Re8 9. Nxd5 Qxd5 10. b3 a6 11. Bb2 b6 12. Rc1 Bb7 13. Bc4 Qd6 14. Qe2 e6 15. Rfd1 Ne7 16. a3 Nd5 17. b4 a5 18. b5 Rac8 19. Rd2 Nf6 20. Rdc2 c6 21. bxc6 Rxc6 22. Bb5 Rxc2 23. Rxc2 Rd8 24. h3 Be4 1/2-1/2

[Event "Troisdorf op"]
[Site "Troisdorf"]
[Date "2009.11.24"]
[Round "5"]
[White "Zimmermann, Ruth"]
[Black "Hahn, Juergen"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "1504"]
[BlackElo "1699"]
[PlyCount "43"]
[EventDate "2009.10.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 c5 2. c3 d6 3. d4 Nf6 4. Bd3 Qc7 5. Nf3 Nbd7 6. 0-0 e6 7. Qc2 cxd4 8. cxd4 Qxc2 9. Bxc2 Be7 10. Nc3 a6 11. a4 0-0 12. Bg5 h6 13. Bh4 Re8 14. Rfe1 e5 15. dxe5 dxe5 16. Bg3 Bb4 17. Rad1 Nh5 18. Rxd7 Nxg3 19. Rd5 Nh5 20. Rxe5 Rxe5 21. Nxe5 Be6 22. Rd1 1/2-1/2

[Event "Troisdorf op"]
[Site "Troisdorf"]
[Date "2009.11.17"]
[Round "4"]
[White "Hahn, Juergen"]
[Black "Ziabari, Morteza"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "1699"]
[BlackElo "1773"]
[PlyCount "30"]
[EventDate "2009.10.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. e3 Nf6 4. Nf3 Bd6 5. Nc3 0-0 6. Bd3 Re8 7. 0-0 Nbd7 8. b3 e5 9. dxe5 Nxe5 10. Nxe5 Bxe5 11. Bb2 Bxh2+ 12. Kxh2 Ng4+ 13. Kg3 Qg5 14. Kf3 Nh2+ 15. Ke2 Bg4+ 0-1

[Event "Troisdorf op"]
[Site "Troisdorf"]
[Date "2009.11.10"]
[Round "3"]
[White "Schwarz, Andreas"]
[Black "Hahn, Juergen"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "1978"]
[BlackElo "1699"]
[PlyCount "51"]
[EventDate "2009.10.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3 Be7 8. Qd2 Qc7 9. g4 Nc6 10. 0-0-0 b5 11. g5 Nd7 12. h4 Bb7 13. Kb1 Nde5 14. Rh3 Na5 15. b3 Rc8 16. Be2 Nd7 17. Kb2 g6 18. h5 e5 19. hxg6 exd4 20. Bxd4 f6 21. gxh7 Nc6 22. Nd5 Qd8 23. g6 Bf8 24. Be3 Nce5 25. Rg1 Bg7 26. Bh6 1-0

[Event "Troisdorf op"]
[Site "Troisdorf"]
[Date "2009.11.03"]
[Round "2"]
[White "Hahn, Juergen"]
[Black "Lorenz, Steffen"]
[Result "1/2-1/2"]
[ECO "D94"]
[WhiteElo "1699"]
[BlackElo "1882"]
[PlyCount "111"]
[EventDate "2009.10.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. e3 Bg7 5. Nf3 0-0 6. cxd5 Nxd5 7. Be2 c5 8. 0-0 cxd4 9. Nxd5 Qxd5 10. Nxd4 Rd8 11. Bf3 Qa5 12. Qe2 e5 13. Nb3 Qb6 14. Bd2 a5 15. Bxa5 Rxa5 16. Nxa5 Qxa5 17. Rfd1 Nc6 18. Bxc6 bxc6 19. Rxd8+ Qxd8 20. Rd1 Qb6 21. Qd3 Bf6 22. b3 Kg7 23. h3 Ba6 24. Qc2 c5 25. Rd5 Qb5 26. Qc1 Qa5 27. a3 Qb6 28. Qc2 Qb5 29. Qc4 Qb6 30. Qc2 e4 31. Rxc5 Bd3 32. Rc6 Qb8 33. Rc8 Qb5 34. Qc5 Qxc5 35. Rxc5 Kf8 36. Rc7 Be7 37. b4 Bb5 38. Ra7 Bd3 39. Rb7 Bc2 40. Kf1 f5 41. Ke1 Kf7 42. h4 h6 43. g3 g5 44. hxg5 hxg5 45. Kd2 Bd3 46. a4 Ke6 47. Kc3 Bd6 48. a5 Kd5 49. Rb6 Be5+ 50. Kb3 f4 51. gxf4 gxf4 52. Rh6 fxe3 53. fxe3 Bd6 54. Rh1 Kc6 55. Ra1 Kb5 56. a6 1/2-1/2

[Event "Troisdorf op"]
[Site "Troisdorf"]
[Date "2009.10.27"]
[Round "1"]
[White "Helfer, Franz Josef"]
[Black "Hahn, Juergen"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "984"]
[BlackElo "1699"]
[PlyCount "102"]
[EventDate "2009.10.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Nc3 e6 4. Bb5+ Bd7 5. d3 a6 6. Ba4 Be7 7. e5 dxe5 8. Nxe5 Bxa4 9. Nxa4 Qd4 10. Nxf7 Kxf7 11. Qf3+ Nf6 12. Qxb7 Nbd7 13. Nc3 Rhb8 14. Qf3 Ne5 15. Qe2 Ng6 16. 0-0 a5 17. Be3 Qd7 18. b3 Nd5 19. Nxd5 exd5 20. Qf3+ Kg8 21. d4 c4 22. bxc4 dxc4 23. c3 Qb7 24. Qe2 Qd5 25. Rae1 Bd6 26. g3 Re8 27. Qd1 Ne7 28. Qg4 Qf5 29. Qe2 Rac8 30. Qd1 Nd5 31. Bd2 Qd3 32. Rxe8+ Rxe8 33. Qh5 Nf6 34. Qd1 Re2 35. Bg5 Qxd1 36. Rxd1 Ne4 37. Be3 Rxa2 38. f3 Nxc3 39. Rf1 a4 40. Bf4 Bxf4 41. gxf4 Ne2+ 42. Kh1 Nxf4 43. Re1 Re2 44. Rb1 c3 45. Rb8+ Kf7 46. Rb7+ Kg6 47. Rb6+ Kh5 48. Rb5+ Kh4 49. Rb1 c2 50. Rg1 Nd3 51. Rg4+ Kh5 0-1

[Event "Troisdorf op"]
[Site "Troisdorf"]
[Date "1999.??.??"]
[Round "?"]
[White "Froitzheim, Ralf"]
[Black "Hahn, Juergen"]
[Result "1/2-1/2"]
[ECO "A30"]
[PlyCount "81"]
[EventDate "1999.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 c5 3. g3 e6 4. Bg2 d6 5. 0-0 Be7 6. d4 cxd4 7. Nxd4 0-0 8. Nc3 a6 9. h3 Qc7 10. Qd3 Nc6 11. Nxc6 bxc6 12. Be3 Rb8 13. b3 c5 14. Bf4 Bb7 15. e4 Rbd8 16. Rad1 Bc6 17. Qe2 Qb7 18. Rfe1 Rfe8 19. Rd3 h6 20. Qd1 e5 21. Bc1 Nh7 22. h4 Nf8 23. Bh3 Bd7 24. Bxd7 Qxd7 25. Nd5 Ne6 26. Qh5 Nd4 27. Kh2 Rf8 28. g4 f6 29. Qg6 Kh8 30. Rh3 Qe6 31. Rg1 Qf7 32. Qxf7 Rxf7 33. Bd2 Bf8 34. Rg2 Kg8 35. Nc7 Rxc7 36. Ba5 Rdd7 37. Bxc7 Rxc7 38. Rd3 Rb7 39. f3 Ne6 40. Rd1 Nd4 41. Rd3 1/2-1/2

[Event "Troisdorf op"]
[Site "Troisdorf"]
[Date "1999.??.??"]
[Round "?"]
[White "Hahn, Juergen"]
[Black "Bonus, Christian"]
[Result "1-0"]
[ECO "D40"]
[PlyCount "65"]
[EventDate "1999.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d5 3. Nc3 e6 4. Nf3 c5 5. e3 Nc6 6. Be2 Be7 7. dxc5 Bxc5 8. 0-0 d4 9. Na4 b6 10. Nxc5 bxc5 11. exd4 Nxd4 12. Nxd4 Qxd4 13. Be3 Qe5 14. Bf3 Rb8 15. b3 h5 16. g3 g5 17. Qd2 Ne4 18. Bxe4 Qxe4 19. Qd6 Rb6 20. Qc7 Bb7 21. Qb8+ Ke7 22. Bxc5+ Kf6 23. Qxh8+ Kg6 24. f3 Qc6 25. Bd4 e5 26. Bxb6 Qxb6+ 27. Rf2 Qd4 28. Re1 f6 29. Qg8+ Kh6 30. Qf7 e4 31. fxe4 Bxe4 32. Qxf6+ Qxf6 33. Rxf6+ 1-0

[Event "Troisdorf op"]
[Site "Troisdorf"]
[Date "1999.??.??"]
[Round "?"]
[White "Hahn, Juergen"]
[Black "Roumjanzew, Ilja"]
[Result "1-0"]
[ECO "D30"]
[PlyCount "62"]
[EventDate "1999.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 e6 2. c4 d5 3. Nf3 Nd7 4. e3 Ngf6 5. Nbd2 c5 6. Be2 Be7 7. b3 0-0 8. Bb2 b6 9. 0-0 Rb8 10. Rc1 a6 11. Ne5 Nxe5 12. dxe5 Nd7 13. Nf3 Bb7 14. cxd5 exd5 15. Qc2 Qc7 16. Qf5 Qc6 17. Rfd1 Rbd8 18. Ng5 Qg6 19. Qxg6 fxg6 20. Ne6 Bh4 21. g3 Be7 22. Bg4 h5 23. Bh3 b5 24. Nxd8 Rxd8 25. Be6+ Kh7 26. Bxd5 Bxd5 27. Rxd5 h4 28. Rcd1 c4 29. Rxd7 cxb3 30. Rxd8 bxa2 31. R8d7 Bc5 1-0

[Event "Troisdorf op"]
[Site "Troisdorf"]
[Date "1999.??.??"]
[Round "?"]
[White "Hahn, Juergen"]
[Black "Schwarz, Andreas"]
[Result "1/2-1/2"]
[ECO "D87"]
[PlyCount "42"]
[EventDate "1999.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 0-0 9. 0-0 Nc6 10. Be3 Bg4 11. f3 Na5 12. Bd3 Be6 13. h3 Nc4 14. Bf2 Bh6 15. f4 Nb2 16. Qd2 Nxd3 17. Qxd3 f5 18. e5 c4 19. Qd2 Bd5 20. Bh4 Be4 21. Rf2 Qd7 1/2-1/2

[Event "Troisdorf op"]
[Site "Troisdorf"]
[Date "1999.??.??"]
[Round "?"]
[White "Hasenberg, Wilfried"]
[Black "Hahn, Juergen"]
[Result "1/2-1/2"]
[ECO "E51"]
[PlyCount "77"]
[EventDate "1999.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 0-0 5. Nf3 d5 6. e3 Nbd7 7. Be2 dxc4 8. Bxc4 c5 9. a3 Bxc3 10. Bxc3 b6 11. dxc5 Nxc5 12. 0-0 Qe7 13. Qe2 Bb7 14. Rfd1 Rfd8 15. h3 Rac8 16. Rxd8+ Rxd8 17. Bb4 Nd5 18. Nd4 a5 19. Be1 Qg5 20. Nf3 Qf6 21. Rd1 Ne4 22. Rd4 Ng5 23. Nxg5 Qxg5 24. Qd1 Rc8 25. Rg4 Qe7 26. Qe2 Nf6 27. Rd4 h6 28. Bc3 Nd5 29. Be1 Nf6 30. b4 Nd5 31. e4 Nf6 32. f3 Qc7 33. Bd3 Qc1 34. bxa5 bxa5 35. a4 Qa1 36. Rc4 Rxc4 37. Bxc4 Qxa4 38. Bb5 Qd4+ 39. Kf1 1/2-1/2

[Event "Troisdorf op"]
[Site "Troisdorf"]
[Date "1999.??.??"]
[Round "?"]
[White "Sejdini, Valentin"]
[Black "Hahn, Juergen"]
[Result "1-0"]
[ECO "D35"]
[PlyCount "57"]
[EventDate "1999.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 e6 3. Nf3 d5 4. cxd5 exd5 5. Nc3 c6 6. Bf4 Bd6 7. Bxd6 Qxd6 8. e3 Bf5 9. Qb3 Nbd7 10. Be2 0-0 11. 0-0 h6 12. Rac1 a5 13. Na4 Qb4 14. Nc5 Nxc5 15. dxc5 Qxb3 16. axb3 a4 17. Nd4 Bg6 18. b4 a3 19. bxa3 Rxa3 20. b5 Ra2 21. Rfe1 cxb5 22. Nxb5 Rc8 23. Nd6 Rc7 24. f3 Kf8 25. e4 dxe4 26. fxe4 Nxe4 27. Bc4 Rxc5 28. Nxe4 Bxe4 29. Bxa2 1-0

