[Event "Rheinland Pfalz op 13th"]
[Site "Engers"]
[Date "2023.06.08"]
[Round "2"]
[White "Zerfass, Otfried"]
[Black "Ollenberger, Roland"]
[Result "0-1"]
[ECO "C11"]
[WhiteElo "1888"]
[BlackElo "2280"]
[PlyCount "48"]
[EventDate "2023.06.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 e6 4. Nf3 d5 5. Bb5 Nf6 6. e5 Nd7 7. d4 a6 8. Bxc6 bxc6 9. 0-0 cxd4 10. Nxd4 c5 11. Nf3 g6 12. Kh1 Qb6 13. b3 Bg7 14. Na4 Qc6 15. Qe1 Bb7 16. Ba3 0-0 17. h4 f6 18. exf6 Rxf6 19. Bb2 d4 20. Bc1 Re8 21. Nb2 e5 22. Nc4 e4 23. Na5 Qc8 24. Nxb7 exf3 0-1

[Event "GER-chT Laender Seniors 65+"]
[Site "Templin"]
[Date "2018.09.14"]
[Round "5.4"]
[White "Krueger, Gerhard"]
[Black "Zerfass, Otfried"]
[Result "1-0"]
[ECO "A53"]
[WhiteElo "1967"]
[BlackElo "1857"]
[PlyCount "47"]
[EventDate "2018.09.10"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Mecklenburg Vorpommern"]
[BlackTeam "Sachsen Anhalt"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d6 2. d4 Nf6 3. Bd3 Nbd7 4. c4 e5 5. d5 Nc5 6. Nc3 Nxd3+ 7. Qxd3 Be7 8. Nge2 0-0 9. 0-0 c6 10. h3 Ne8 11. Ng3 Bg5 12. Nd1 Bxc1 13. Rxc1 Qg5 14. Ne3 g6 15. dxc6 bxc6 16. c5 f5 17. exf5 gxf5 18. cxd6 Bd7 19. Rc5 f4 20. Ne4 Qg7 21. Ng4 f3 22. Rxe5 Bf5 23. Qxf3 Kh8 24. Rxf5 1-0

[Event "GER-chT Laender Seniors 65+"]
[Site "Templin"]
[Date "2018.09.13"]
[Round "4.4"]
[White "Zerfass, Otfried"]
[Black "Gerl, Hans Peter"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1857"]
[BlackElo "2019"]
[PlyCount "70"]
[EventDate "2018.09.10"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Sachsen Anhalt"]
[BlackTeam "Bayern II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nc3 e6 3. Nge2 Nc6 4. g3 d6 5. Bg2 Nf6 6. 0-0 Be7 7. d4 cxd4 8. Nxd4 Qb6 9. Ndb5 Qd8 10. h3 a6 11. Nd4 Ne5 12. Qe2 Qc7 13. Kh2 0-0 14. f4 Nc4 15. b3 Nb6 16. Bb2 Rd8 17. Rad1 Bd7 18. Rd2 Be8 19. Rfd1 Rac8 20. Qf3 d5 21. e5 Nfd7 22. Qg4 Nf8 23. Nce2 Bb4 24. Rd3 Nbd7 25. c3 Be7 26. Ng1 b5 27. Ngf3 Nc5 28. Re3 Ne4 29. Rf1 g6 30. f5 h5 31. Qf4 g5 32. Nxg5 Bxg5 33. Qf3 Qxe5 34. Qxh5 Bxe3 35. Qg4+ Qg7 0-1

[Event "GER-chT Laender Seniors 65+"]
[Site "Templin"]
[Date "2018.09.12"]
[Round "2.4"]
[White "Fugmann, Bernd"]
[Black "Zerfass, Otfried"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1969"]
[BlackElo "1857"]
[PlyCount "145"]
[EventDate "2018.09.10"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Baden II"]
[BlackTeam "Sachsen Anhalt"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e5 5. Nf3 exd4 6. Qxd4 c6 7. Be2 d5 8. e5 Bc5 9. Qd3 Ng4 10. Rf1 Nxh2 11. Rh1 Nxf3+ 12. Qxf3 Qb6 13. Bd3 Nf8 14. Bd2 Qc7 15. 0-0-0 Bd7 16. Rde1 0-0-0 17. Na4 Be7 18. Qf2 c5 19. Nc3 Bc6 20. f5 c4 21. Bf1 Qa5 22. Be3 Bb4 23. Bd4 Bxc3 24. bxc3 Qxa2 25. Kd2 Ba4 26. Rc1 Nd7 27. Be2 Rde8 28. Qg3 b5 29. Bf3 Nb6 30. e6 fxe6 31. fxe6 b4 32. cxb4 c3+ 33. Bxc3 Nc4+ 34. Kd3 Na3 35. Qf2 Qc4+ 36. Kd2 Qf4+ 37. Kd1 Rxe6 38. Rh4 Qc7 39. Qd4 Nc4 40. Bg4 Bd7 41. Bxe6 Bxe6 42. Ra1 Kb8 43. Bd2 Nxd2 44. Kxd2 Rf8 45. Ra3 h6 46. Rc3 Qf7 47. Qe5+ Kb7 48. Rf3 Qe7 49. Rxf8 Qxf8 50. Rf4 Qe7 51. c3 a6 52. Rf3 Kc6 53. Re3 Kd7 54. Qb8 Kc6 55. Qa8+ Kd7 56. Qxa6 Qf6 57. Qb5+ Kc7 58. Qc5+ Kd7 59. Qa7+ Kc6 60. Qc5+ Kd7 61. Qa7+ Kc6 62. Qd4 Qg5 63. Kc1 Kc7 64. Qd2 Bf5 65. Qf2 Be4 66. Kb2 Qe7 67. Qg3+ Kc6 68. Qg6+ Kb5 69. Qg3 Qa7 70. Re1 Qf7 71. Ra1 Qf6 72. Ra5+ Kb6 73. Qb8+ 1-0

[Event "GER-chT Laender Seniors 65+"]
[Site "Templin"]
[Date "2018.09.12"]
[Round "3.4"]
[White "Hahne, Hans Juergen"]
[Black "Zerfass, Otfried"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2084"]
[BlackElo "1857"]
[PlyCount "101"]
[EventDate "2018.09.10"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Schleswig Holstein"]
[BlackTeam "Sachsen Anhalt"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. Nf3 e5 5. Bc4 Be7 6. 0-0 c6 7. a4 Qc7 8. b3 h6 9. Bb2 0-0 10. a5 Nxe4 11. Nxe4 d5 12. Bxd5 cxd5 13. Nc3 Qb8 14. dxe5 Nxe5 15. Nxe5 Qxe5 16. Re1 Qg5 17. Qxd5 Rd8 18. Qxg5 Bxg5 19. Ne4 Bf4 20. c4 Bf5 21. b4 Rd3 22. Nc5 Rd2 23. Bc1 Rd4 24. Bxf4 Rxf4 25. Rec1 Rb8 26. f3 b6 27. Na6 Rc8 28. c5 Bd3 29. g3 Rxf3 30. Rc3 bxa5 31. Rxa5 Rf1+ 32. Kg2 Bxa6 33. Rxa6 Rb1 34. Rc4 Rb8 35. Ra4 Rb2+ 36. Kf3 Rb3+ 37. Ke4 Re8+ 38. Kd5 Rd3+ 39. Kc6 Re6+ 40. Kb5 Rd7 41. c6 Rc7 42. Ra6 Re5+ 43. Rc5 Re2 44. Rd5 Ree7 45. Rd8+ Kh7 46. Kc5 Re6 47. b5 Rce7 48. Ra8 Re5+ 49. Kb4 Re4+ 50. Ka5 Re2 51. R6xa7 1-0

[Event "GER-chT Laender Seniors 65+"]
[Site "Templin"]
[Date "2018.09.10"]
[Round "1.4"]
[White "Zerfass, Otfried"]
[Black "Gerstenberger, Heinz"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1857"]
[BlackElo "2113"]
[PlyCount "74"]
[EventDate "2018.09.10"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Sachsen Anhalt"]
[BlackTeam "Wuerttemberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Nge2 c6 6. Bf4 Qd8 7. Ng3 g6 8. Be2 Bg7 9. Qd2 Be6 10. h4 h5 11. 0-0 Nbd7 12. Rfd1 Nb6 13. Nge4 Nfd5 14. Ng5 Bd7 15. Bg3 Bh6 16. Qd3 Bf5 17. Nce4 f6 18. c4 fxg5 19. cxd5 cxd5 20. hxg5 Bg7 21. Nd6+ exd6 22. Qe3+ Kf7 23. Qf4 Qd7 24. a4 a6 25. Bf3 Rad8 26. a5 Nc8 27. Bxd5+ Kf8 28. Re1 Ne7 29. Be6 Qb5 30. Rec1 Nc6 31. Rc4 Ke7 32. Bxf5 Qxf5 33. Re1+ Kf7 34. Qc1 Rhe8 35. d5 Rxe1+ 36. Qxe1 Qxd5 37. Re4 Kg8 0-1

[Event "Blankenburg op-A 19th"]
[Site "Blankenburg"]
[Date "2014.10.04"]
[Round "6"]
[White "Kreyssig, Bruno"]
[Black "Zerfass, Otfried"]
[Result "1-0"]
[ECO "B34"]
[WhiteElo "1895"]
[BlackElo "1893"]
[PlyCount "71"]
[EventDate "2014.10.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be2 Bg7 6. Nb3 Nf6 7. Nc3 0-0 8. Be3 e6 9. Bc5 Re8 10. Bd6 a6 11. f4 b5 12. e5 Nd5 13. Nxd5 exd5 14. Qxd5 Bb7 15. Nc5 Ra7 16. Nxb7 Rxb7 17. 0-0-0 Qa5 18. h4 Qa4 19. Kb1 Bf8 20. f5 Bxd6 21. fxg6 hxg6 22. Rdf1 Qxc2+ 23. Ka1 Re6 24. Bd3 Qc5 25. Qf3 Nd8 26. exd6 Qxd6 27. h5 Rb6 28. hxg6 Rf6 29. Rh8+ Kg7 30. Rh7+ Kg8 31. gxf7+ Nxf7 32. Qg4+ Kf8 33. Re1 Ne5 34. Qg7+ Ke8 35. Rh8+ Rf8 36. Rxe5+ 1-0

[Event "Blankenburg op-A 19th"]
[Site "Blankenburg"]
[Date "2014.10.04"]
[Round "5"]
[White "Walther, Joachim"]
[Black "Zerfass, Otfried"]
[Result "1-0"]
[ECO "E84"]
[WhiteElo "1888"]
[BlackElo "1893"]
[PlyCount "103"]
[EventDate "2014.10.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 Nc6 7. Qd2 a6 8. Rd1 Re8 9. Nge2 Rb8 10. Nc1 e5 11. d5 Nd4 12. Bxd4 exd4 13. N3e2 Nxe4 14. fxe4 Qh4+ 15. g3 Qxe4 16. Rg1 Bf5 17. Kf2 c5 18. dxc6 bxc6 19. b3 c5 20. Bg2 Qe7 21. Rge1 Qe3+ 22. Qxe3 Rxe3 23. Nf4 Bg4 24. Rd3 g5 25. Nd5 Rbe8 26. Rdxe3 dxe3+ 27. Rxe3 Rxe3 28. Nxe3 Bd4 29. h3 Bh5 30. Ne2 Be5 31. Nf5 f6 32. g4 Be8 33. Bc6 Bg6 34. Ne7+ Kg7 35. Nxg6 hxg6 36. Bb7 a5 37. Bc8 Kf7 38. Kf3 Ke7 39. Ke4 Kd8 40. Be6 Ke7 41. Bd5 Kf8 42. Ng1 Ke7 43. Nf3 Bg3 44. Bb7 Kd7 45. Kd5 Bf4 46. h4 f5 47. gxf5 g4 48. fxg6 gxf3 49. g7 f2 50. Bc6+ Ke7 51. g8Q f1Q 52. Qg7+ 1-0

[Event "Blankenburg op-A 19th"]
[Site "Blankenburg"]
[Date "2014.10.03"]
[Round "3"]
[White "Michael, Dirk"]
[Black "Zerfass, Otfried"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "2069"]
[BlackElo "1893"]
[PlyCount "131"]
[EventDate "2014.10.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 g6 3. b4 Bg7 4. Bb2 0-0 5. e3 d6 6. d4 Nbd7 7. Nbd2 Re8 8. Qc2 e5 9. Be2 c6 10. dxe5 dxe5 11. 0-0 Qc7 12. Bc3 Nf8 13. Qb2 Bg4 14. h3 Bxf3 15. Nxf3 Ne4 16. Be1 Rad8 17. c5 Ne6 18. Bc4 N6g5 19. Nh2 Qe7 20. f3 Nf6 21. Rc1 Nd5 22. Qb3 Kh8 23. h4 Ne6 24. Rd1 Ndc7 25. Bg3 Rxd1 26. Rxd1 Rd8 27. Ng4 f6 28. Rxd8+ Nxd8 29. Qd1 Nde6 30. Qd6 Qe8 31. Kf2 h5 32. Nh2 Bf8 33. Qd2 Qd8 34. Qc2 Kg7 35. Nf1 Nd5 36. Qb2 b6 37. cxb6 axb6 38. a3 c5 39. b5 Nec7 40. Nd2 Qd7 41. Ne4 Be7 42. Qd2 Qd8 43. a4 Kh6 44. f4 exf4 45. exf4 Kg7 46. Kg1 Qa8 47. Nf2 Nb4 48. f5 Ncd5 49. fxg6 Kxg6 50. Qe2 Qd8 51. Qe6 Bf8 52. Qg8+ Kh6 53. Qh8+ Kg6 54. Be2 Qe7 55. Bxh5+ Kf5 56. Bg4+ Kg6 57. Qh5+ Kg7 58. Bf5 Kg8 59. Ng4 Na2 60. Bh7+ Qxh7 61. Qxd5+ Qf7 62. Nxf6+ Kg7 63. Qf5 Kh8 64. Be5 Bg7 65. h5 Qc4 66. Ne8 1-0

[Event "Blankenburg op-A 19th"]
[Site "Blankenburg"]
[Date "2014.10.03"]
[Round "4"]
[White "Zerfass, Otfried"]
[Black "Willberg, Frank"]
[Result "0-1"]
[ECO "C11"]
[WhiteElo "1893"]
[BlackElo "2013"]
[PlyCount "60"]
[EventDate "2014.10.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 d5 3. exd5 Nxd5 4. d4 e6 5. Bd3 Nc6 6. Nge2 Bb4 7. a3 Nxc3 8. bxc3 Bd6 9. Ng3 Qh4 10. Ne4 Be7 11. Qf3 f5 12. Ng3 Bd6 13. Nh5 g6 14. Nf4 e5 15. Qe2 0-0 16. g3 Qf6 17. Bc4+ Kh8 18. Nd5 Qg7 19. h4 exd4 20. h5 g5 21. h6 Qg6 22. Kf1 dxc3 23. Rh5 f4 24. gxf4 gxf4 25. Rh4 f3 26. Qe3 Bh3+ 27. Rxh3 Qg2+ 28. Ke1 Qxh3 29. Qxc3+ Be5 30. Bb2 Rae8 0-1

[Event "Blankenburg op-A 19th"]
[Site "Blankenburg"]
[Date "2014.10.02"]
[Round "1"]
[White "Frotscher, Thomas"]
[Black "Zerfass, Otfried"]
[Result "1-0"]
[ECO "E70"]
[WhiteElo "2128"]
[BlackElo "1893"]
[PlyCount "83"]
[EventDate "2014.10.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Nge2 0-0 6. Ng3 e5 7. d5 Ne8 8. Be2 f5 9. exf5 gxf5 10. Nh5 Bh8 11. f4 Nd7 12. 0-0 Ndf6 13. Ng3 e4 14. Be3 Ng7 15. Qd2 Bd7 16. Bd4 Be8 17. Nd1 h5 18. Ne3 Bg6 19. Rad1 h4 20. Nh1 Ngh5 21. g3 hxg3 22. hxg3 Rf7 23. Rf2 Rh7 24. Rh2 Qf8 25. Rf1 Re8 26. Rff2 Ree7 27. Rfg2 Rh6 28. Nf2 Reh7 29. Nh3 Ng7 30. Ng5 Rxh2 31. Rxh2 Rxh2 32. Kxh2 Ngh5 33. Kg2 Qh6 34. Nc2 Ng4 35. Bxg4 fxg4 36. Ne3 Bxd4 37. Qxd4 Qf8 38. Ne6 Qe7 39. Nxg4 Kh7 40. Ng5+ Kg8 41. Nh6+ Kf8 42. Qh8# 1-0

[Event "Blankenburg op-A 19th"]
[Site "Blankenburg"]
[Date "2014.10.02"]
[Round "2"]
[White "Zerfass, Otfried"]
[Black "Dietz, Florian"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1893"]
[BlackElo "1776"]
[PlyCount "43"]
[EventDate "2014.10.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 g6 4. Bxc6 bxc6 5. d3 Bg7 6. f4 e6 7. Nf3 d5 8. e5 Ne7 9. 0-0 0-0 10. Qe1 Rb8 11. b3 a5 12. Ba3 c4 13. dxc4 dxc4 14. Ne4 cxb3 15. axb3 Ba6 16. Rf2 Kh8 17. Rd2 Qb6+ 18. Kh1 Qa7 19. Rad1 Rg8 20. Rd7 Rb7 21. Rxb7 Qxb7 22. Nd6 1-0

[Event "Blankenburg op-A 18th"]
[Site "Blankenburg"]
[Date "2013.10.06"]
[Round "7"]
[White "Fahsel, Nico"]
[Black "Zerfass, Otfried"]
[Result "1-0"]
[ECO "B34"]
[WhiteElo "1766"]
[BlackElo "1813"]
[PlyCount "55"]
[EventDate "2013.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be3 Bg7 6. Be2 Nf6 7. Nc3 0-0 8. 0-0 d5 9. Nxc6 bxc6 10. e5 Nd7 11. f4 e6 12. Na4 Qa5 13. Qd4 f6 14. Bd2 Qc7 15. Nc5 fxe5 16. fxe5 Rxf1+ 17. Rxf1 Nxe5 18. Qh4 Nf7 19. Ba5 Qxa5 20. Qe7 Bd4+ 21. Kh1 Qxc5 22. Qxf7+ Kh8 23. Qe8+ Kg7 24. Rf7+ Kh6 25. Qg8 Bf6 26. h4 Bxh4 27. Qg7+ Kg5 28. Qf6+ 1-0

[Event "Blankenburg op-A 18th"]
[Site "Blankenburg"]
[Date "2013.10.05"]
[Round "5"]
[White "Groebel, Aaron"]
[Black "Zerfass, Otfried"]
[Result "1-0"]
[ECO "B35"]
[WhiteElo "1666"]
[BlackElo "1913"]
[PlyCount "81"]
[EventDate "2013.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 Qa5 8. Nb3 Qc7 9. Bd3 0-0 10. 0-0 d6 11. h3 Ne5 12. Nb5 Qb8 13. f4 Nxd3 14. Qxd3 Bd7 15. Nc3 b6 16. Rad1 Qb7 17. e5 Bf5 18. Qd4 Nd7 19. Qd5 Qc8 20. Nd4 Nc5 21. Nxf5 Qxf5 22. exd6 exd6 23. Qxf5 gxf5 24. Rxd6 Ne4 25. Nxe4 fxe4 26. c3 f5 27. Rfd1 b5 28. Rd7 b4 29. Bc5 Rfb8 30. Bxb4 Re8 31. Re7 Bf6 32. Rxe8+ Rxe8 33. Kf1 Bh4 34. Ke2 Bg3 35. Ke3 Kf7 36. Rd7+ Kg6 37. Rxa7 Bxf4+ 38. Kxf4 e3 39. Re7 Rxe7 40. Bxe7 e2 41. Bh4 1-0

[Event "Blankenburg op-A 18th"]
[Site "Blankenburg"]
[Date "2013.10.05"]
[Round "6"]
[White "Zerfass, Otfried"]
[Black "Kasper, Mike"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "1913"]
[BlackElo "1917"]
[PlyCount "58"]
[EventDate "2013.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Bc4 d6 5. Nge2 Be6 6. Bxe6 Nxe6 7. d3 g6 8. 0-0 Bg7 9. f4 Qd7 10. a4 Nf6 11. Ng3 Nd4 12. f5 0-0 13. Be3 Nc6 14. Qd2 Ng4 15. Bf4 Nb4 16. Nd1 d5 17. h3 Ne5 18. Nf2 b6 19. c3 Nbc6 20. Bh6 dxe4 21. Ngxe4 f6 22. fxg6 hxg6 23. Bxg7 Kxg7 24. Rfd1 Rad8 25. Qe3 Rh8 26. a5 Qd5 27. axb6 axb6 28. Ra6 Rb8 29. Ng3 Kf7 1/2-1/2

[Event "Blankenburg op-A 18th"]
[Site "Blankenburg"]
[Date "2013.10.04"]
[Round "3"]
[White "Stanke, Achim"]
[Black "Zerfass, Otfried"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2158"]
[BlackElo "1913"]
[PlyCount "73"]
[EventDate "2013.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. c3 0-0 5. Nh3 d6 6. 0-0 Nbd7 7. f3 c5 8. Nf2 cxd4 9. cxd4 Rb8 10. Na3 b5 11. Nc2 Bb7 12. e4 a5 13. Be3 Nb6 14. b3 Nfd7 15. Qd2 b4 16. a3 bxa3 17. Qxa5 Ra8 18. Qd2 Ba6 19. Rfc1 Qb8 20. Rxa3 Rc8 21. Nb4 Bb5 22. Rxa8 Qxa8 23. Rxc8+ Qxc8 24. f4 e5 25. Nc2 Qa6 26. dxe5 dxe5 27. Nd1 Qc8 28. Nb4 Nc5 29. Qc2 Nbd7 30. Nc3 exf4 31. Ncd5 Qf8 32. gxf4 Ba6 33. Nxa6 Nxa6 34. e5 Qb8 35. Qc4 Bf8 36. Qxa6 Qxb3 37. Qc8 1-0

[Event "Blankenburg op-A 18th"]
[Site "Blankenburg"]
[Date "2013.10.04"]
[Round "4"]
[White "Zerfass, Otfried"]
[Black "Perkampus, Lars"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1913"]
[BlackElo "1975"]
[PlyCount "65"]
[EventDate "2013.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 e6 7. Nf3 Bd6 8. Ne5 Bxe5 9. dxe5 Nd7 10. Qe2 a6 11. Nd2 b5 12. 0-0 Bb7 13. Nf3 h6 14. Rfe1 Qe7 15. Rad1 g5 16. Bg3 Nc5 17. Bb1 0-0-0 18. Nd4 h5 19. h3 Rdg8 20. f4 h4 21. Bh2 f5 22. exf6 Qxf6 23. Nxe6 gxf4 24. Nxc5 f3 25. Qe6+ Qxe6 26. Rxe6 Rxg2+ 27. Kh1 Nd8 28. Re7 Rxh2+ 29. Kxh2 Rg8 30. Nxb7 Rg2+ 31. Kh1 Nxb7 32. Bf5+ Kb8 33. Bg4 1-0

[Event "Blankenburg op-A 18th"]
[Site "Blankenburg"]
[Date "2013.10.03"]
[Round "1"]
[White "Paul, Johannes"]
[Black "Zerfass, Otfried"]
[Result "1-0"]
[ECO "E68"]
[WhiteElo "2238"]
[BlackElo "1913"]
[PlyCount "47"]
[EventDate "2013.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 0-0 5. d4 d6 6. Nf3 Nbd7 7. 0-0 e5 8. h3 exd4 9. Nxd4 Re8 10. e4 Nc5 11. Re1 a5 12. b3 Nfd7 13. Be3 Ne5 14. Qc2 Bd7 15. Rad1 Qc8 16. Kh2 b6 17. Nd5 Qb7 18. Bg5 Kh8 19. Bf6 Nc6 20. Qc3 Bxf6 21. Nxf6 Nxd4 22. Qxd4 Ne6 23. Qc3 Red8 24. Nxd7+ 1-0

[Event "Blankenburg op-A 18th"]
[Site "Blankenburg"]
[Date "2013.10.03"]
[Round "2"]
[White "Zerfass, Otfried"]
[Black "Bertz, Siegfried"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "1913"]
[PlyCount "84"]
[EventDate "2013.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. Bb5+ Bd7 4. a4 Nc6 5. f4 Nf6 6. Nf3 e6 7. 0-0 Be7 8. d3 0-0 9. Bd2 a6 10. Bc4 Nd4 11. Ne2 d5 12. exd5 exd5 13. Ba2 Nxf3+ 14. Rxf3 Bc6 15. f5 Qd7 16. Nf4 b5 17. axb5 axb5 18. Rf1 Ra7 19. c4 Rfa8 20. cxd5 Bxd5 21. Nxd5 Nxd5 22. Qb3 c4 23. dxc4 bxc4 24. Qxc4 Bf6 25. Qxd5 Qxd5 26. Bxd5 Rxa1 27. Bxa8 Rxa8 28. Bc3 Bxc3 29. bxc3 Ra2 30. Rc1 Kf8 31. c4 Ke7 32. c5 Kd7 33. g4 Kc6 34. h3 Rd2 35. Re1 Rd7 36. Kg2 Kxc5 37. h4 Ra7 38. Kf3 Kd5 39. Kf4 Kd6 40. g5 Ra4+ 41. Re4 Rxe4+ 42. Kxe4 f6 1/2-1/2

[Event "Blankenburg op 17th"]
[Site "Blankenburg"]
[Date "2009.10.06"]
[Round "7"]
[White "Buecker, Timo"]
[Black "Zerfass, Otfried"]
[Result "1/2-1/2"]
[ECO "B08"]
[WhiteElo "1878"]
[BlackElo "2009"]
[PlyCount "39"]
[EventDate "2009.10.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Nc3 Bg7 4. e4 d6 5. Be3 0-0 6. Qd2 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Bg5 Re8 10. Bxf6 Bxf6 11. Nd5 Bd8 12. Bc4 c6 13. Ne3 Nd7 14. Rd1 b5 15. Bb3 Nc5 16. 0-0 Nxb3 17. axb3 Bb6 18. Rd6 Bb7 19. Rd7 Bc8 20. Rd6 1/2-1/2

[Event "Blankenburg op 17th"]
[Site "Blankenburg"]
[Date "2009.10.05"]
[Round "5"]
[White "Fleischmann, Torsten"]
[Black "Zerfass, Otfried"]
[Result "0-1"]
[ECO "A50"]
[WhiteElo "1891"]
[BlackElo "2009"]
[PlyCount "60"]
[EventDate "2009.10.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 Nc6 3. Nc3 e5 4. d5 Ne7 5. Nf3 Ng6 6. e3 Bb4 7. Bd2 0-0 8. Qc2 d6 9. a3 Bxc3 10. Bxc3 Bg4 11. Nd2 Qe7 12. f3 Bd7 13. Bd3 c6 14. Bxg6 hxg6 15. e4 cxd5 16. cxd5 Nh5 17. 0-0 Bb5 18. Rf2 Nf4 19. a4 Bd3 20. Qb3 Ne2+ 21. Kh1 Qh4 22. Raf1 Ng3+ 23. Kg1 Nxf1 24. Nxf1 Bxf1 25. Rxf1 Qe7 26. a5 Rac8 27. Bb4 Qc7 28. Bc3 Qc5+ 29. Kh1 Qc4 30. Qxb7 Qxf1# 0-1

[Event "Blankenburg op 17th"]
[Site "Blankenburg"]
[Date "2009.10.05"]
[Round "6"]
[White "Zerfass, Otfried"]
[Black "Perkampus, Lars"]
[Result "1/2-1/2"]
[ECO "B10"]
[WhiteElo "2009"]
[BlackElo "1984"]
[PlyCount "118"]
[EventDate "2009.10.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. e4 c6 2. d3 d5 3. Nd2 e5 4. Ngf3 Bd6 5. g3 Nf6 6. Bg2 0-0 7. 0-0 Bg4 8. h3 Bxf3 9. Qxf3 dxe4 10. dxe4 Nbd7 11. Nc4 Bc7 12. Rd1 Qe7 13. Ne3 Qe6 14. Nf5 Nc5 15. Qe2 Rad8 16. Bg5 Rxd1+ 17. Rxd1 Rd8 18. Rxd8+ Bxd8 19. Qe3 Ncxe4 20. Nxg7 Kxg7 21. Bxe4 Qxh3 22. Bg2 Qf5 23. Bh6+ Kg6 24. Bf8 Ng4 25. Qe2 Nf6 26. Qd2 Ng4 27. Bh3 Bg5 28. Qe2 h5 29. f3 Be3+ 30. Kg2 Kg5 31. Bxg4 hxg4 32. Qxe3+ Kf6 33. Qh6+ Qg6 34. Bg7+ Ke6 35. Qxg6+ fxg6 36. fxg4 Kd5 37. Kf2 c5 38. Ke3 c4 39. b3 cxb3 40. axb3 b5 41. c4+ bxc4 42. bxc4+ Kxc4 43. Ke4 a5 44. Bxe5 a4 45. Kf4 Kd3 46. Kg5 Ke4 47. Ba1 Kf3 48. Kh4 a3 49. Bd4 a2 50. Ba1 Ke4 51. Kg5 Kf3 52. Kh4 Ke4 53. g5 Kf5 54. Bf6 Ke4 55. Kg4 Ke3 56. Kh3 Kf2 57. Bd4+ Kf3 58. Kh2 Ke4 59. Ba1 Kf3 1/2-1/2

[Event "Blankenburg op 17th"]
[Site "Blankenburg"]
[Date "2009.10.04"]
[Round "4"]
[White "Vonhoff, Joerg"]
[Black "Zerfass, Otfried"]
[Result "0-1"]
[ECO "B34"]
[WhiteElo "1722"]
[BlackElo "2009"]
[PlyCount "118"]
[EventDate "2009.10.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be3 Bg7 6. c3 Nf6 7. Bd3 0-0 8. 0-0 d5 9. exd5 Nxd5 10. Nxc6 bxc6 11. Bg5 Qa5 12. Bh4 Ba6 13. Bxa6 Qxa6 14. Nd2 Rab8 15. Nb3 Qc4 16. Bg3 Rbd8 17. Qf3 Rfe8 18. Rfe1 e6 19. Qe2 Qxe2 20. Rxe2 e5 21. Rae1 f6 22. Na5 Re6 23. f4 Rde8 24. fxe5 fxe5 25. Rd1 e4 26. c4 Nb4 27. a3 Nd3 28. b4 Bd4+ 29. Kh1 Rf8 30. h3 Ref6 31. h4 Rf1+ 32. Rxf1 Rxf1+ 33. Kh2 Bg1+ 34. Kh3 e3 35. Nxc6 Bf2 36. Nd4 Rh1+ 37. Kg4 h5+ 38. Kf3 Ne1+ 39. Rxe1 Bxe1 40. Bxe1 Rxe1 41. c5 Kf7 42. b5 Ke8 43. b6 axb6 44. cxb6 Rb1 45. Kxe3 Rxb6 46. Kf4 Kf7 47. Kf3 Kf6 48. Nc2 Rb3+ 49. Ke2 Rc3 50. Kd2 Rc4 51. g3 Rg4 52. Ne3 Rxg3 53. a4 Ke6 54. a5 Kd6 55. Ke2 Rh3 56. Ng2 Ke5 57. Ne1 Ra3 58. a6 Rxa6 59. Nd3+ Kf5 0-1

[Event "Blankenburg op 17th"]
[Site "Blankenburg"]
[Date "2009.10.03"]
[Round "2"]
[White "Schuster, Rudolf"]
[Black "Zerfass, Otfried"]
[Result "1/2-1/2"]
[ECO "B22"]
[BlackElo "2009"]
[PlyCount "54"]
[EventDate "2009.10.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nc6 3. d4 e6 4. Nf3 Nf6 5. e5 Ng8 6. Bd3 d5 7. 0-0 Nge7 8. Bg5 b6 9. Be3 c4 10. Bc2 Nf5 11. Bxf5 exf5 12. g3 Be7 13. Kg2 g5 14. h3 h5 15. Rh1 h4 16. Na3 Be6 17. Nb5 Rg8 18. Nd6+ Bxd6 19. exd6 f4 20. Bd2 fxg3 21. fxg3 Qxd6 22. Qe1 hxg3 23. Bxg5 Kd7 24. h4 Rae8 25. Ne5+ Nxe5 26. dxe5 Qc6 27. Kxg3 Bf5 1/2-1/2

[Event "Blankenburg op 17th"]
[Site "Blankenburg"]
[Date "2009.10.03"]
[Round "3"]
[White "Zerfass, Otfried"]
[Black "Ziervogel, Alexander"]
[Result "1/2-1/2"]
[ECO "B10"]
[WhiteElo "2009"]
[PlyCount "51"]
[EventDate "2009.10.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. e4 c6 2. d3 d5 3. Nd2 dxe4 4. dxe4 Nf6 5. Ngf3 Bg4 6. Bc4 e6 7. 0-0 Nbd7 8. h3 Bh5 9. Qe1 Be7 10. Qe3 Bc5 11. Qc3 0-0 12. Re1 b5 13. b4 Be7 14. Bb3 Qb6 15. Nf1 Bxf3 16. gxf3 Rac8 17. Be3 Qb8 18. Red1 a6 19. Ng3 c5 20. bxc5 Bxc5 21. Kg2 Bxe3 22. Qxe3 Ne5 23. Rd4 Nc6 24. Rd2 Ne5 25. Rd4 Nc6 26. Rd2 1/2-1/2

[Event "Blankenburg op 17th"]
[Site "Blankenburg"]
[Date "2009.10.02"]
[Round "1"]
[White "Zerfass, Otfried"]
[Black "Morgenstern, Frank"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "2009"]
[PlyCount "108"]
[EventDate "2009.10.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 c5 4. g3 Nc6 5. Bg2 Nf6 6. Ngf3 dxe4 7. dxe4 Be7 8. 0-0 0-0 9. Re1 e5 10. c3 Bg4 11. Qc2 Qc7 12. Nc4 Rad8 13. Ne3 h6 14. Nxg4 Nxg4 15. h3 Nf6 16. Be3 b6 17. Nh4 Nh7 18. Nf5 Bg5 19. Rad1 Bxe3 20. Nxe3 Nf6 21. Nd5 Nxd5 22. exd5 Ne7 23. c4 f5 24. Qe2 Ng6 25. Qh5 Rf6 26. b3 Qd6 27. h4 Rdf8 28. Qe2 e4 29. Qe3 f4 30. Qxe4 fxg3 31. f3 Rf4 32. Qe6+ Qxe6 33. dxe6 Nxh4 34. e7 Re8 35. Re3 Kf7 36. Bh3 Rxe7 37. Rxe7+ Kxe7 38. Rd7+ Kf6 39. Rxa7 Rxf3 40. Bg2 Rf2 41. Bd5 Rd2 42. Rf7+ Ke5 43. a4 g5 44. Re7+ Kd4 45. Re1 Rb2 46. Re4+ Kd3 47. Re1 Rxb3 48. Rd1+ Ke2 49. Rf1 g4 50. Rc1 h5 51. Ra1 Rb2 52. Rc1 Nf3+ 53. Kg2 h4 54. Ra1 Ke3+ 0-1

[Event "Blankenburg op-A 16th"]
[Site "Blankenburg"]
[Date "2008.10.07"]
[Round "7"]
[White "Zerfass, Otfried"]
[Black "Walther, Joachim"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2031"]
[BlackElo "1748"]
[PlyCount "111"]
[EventDate "2008.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 g6 4. Bxc6 bxc6 5. d3 Bg7 6. f4 d6 7. Nf3 e6 8. 0-0 Qc7 9. Qe1 Rb8 10. b3 Ne7 11. Bd2 0-0 12. e5 Nd5 13. exd6 Qxd6 14. Ne4 Qc7 15. Rc1 Bd4+ 16. Kh1 Bb2 17. Rb1 Bg7 18. Qh4 Qd8 19. Qxd8 Rxd8 20. Ne5 Ne7 21. Be3 f5 22. Nxc5 Bxe5 23. fxe5 Nd5 24. Bd2 Nb4 25. Bxb4 Rxb4 26. c3 Rb6 27. d4 Kf7 28. Rf2 a5 29. Re1 Ke7 30. Re3 Rb5 31. h3 h5 32. Rg3 Rg8 33. Rg5 Rb6 34. g4 hxg4 35. hxg4 Rh8+ 36. Kg1 Rh6 37. Kg2 Rb8 38. Kg3 Bd7 39. c4 Rbh8 40. gxf5 exf5 41. Nxd7 Kxd7 42. d5 cxd5 43. cxd5 Rh3+ 44. Kg2 Rh2+ 45. Kf3 R8h3+ 46. Rg3 Rxg3+ 47. Kxg3 Rh1 48. Rd2 Re1 49. e6+ Kd6 50. Kf4 Rg1 51. Kf3 Rh1 52. Kf4 Rg1 53. Re2 Rg4+ 54. Kf3 Ke7 55. d6+ Ke8 56. Rh2 1-0

[Event "Blankenburg op-A 16th"]
[Site "Blankenburg"]
[Date "2008.10.06"]
[Round "5"]
[White "Gering, Samuel"]
[Black "Zerfass, Otfried"]
[Result "1-0"]
[ECO "E71"]
[WhiteElo "1900"]
[BlackElo "2031"]
[PlyCount "79"]
[EventDate "2008.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 0-0 6. Be3 e5 7. d5 Nh5 8. Be2 Nf4 9. Bf3 f5 10. g3 fxe4 11. Nxe4 Bf5 12. Qd2 Qe7 13. 0-0-0 Nh5 14. Ne2 Na6 15. N2c3 Nf6 16. Rdf1 Nc5 17. Qc2 a5 18. g4 Bd7 19. Nxc5 dxc5 20. Be4 a4 21. f3 Qd6 22. Qf2 Ra5 23. Rd1 Qb6 24. Qe2 Ne8 25. h4 Qb4 26. a3 Qb3 27. Bc2 Qb6 28. Ne4 Nd6 29. h5 Rxf3 30. Nxd6 Rxe3 31. Qxe3 cxd6 32. Qe4 Qd8 33. hxg6 Qg5+ 34. Kb1 Qxg4 35. Qxg4 Bxg4 36. Rdg1 Be2 37. gxh7+ Kh8 38. Rg3 b6 39. Rxg7 Ra8 40. Rhg1 1-0

[Event "Blankenburg op-A 16th"]
[Site "Blankenburg"]
[Date "2008.10.06"]
[Round "6"]
[White "Rothe, Guido"]
[Black "Zerfass, Otfried"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2225"]
[BlackElo "2031"]
[PlyCount "69"]
[EventDate "2008.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 0-0 8. Be2 d6 9. 0-0 Bd7 10. f3 Nxd4 11. Bxd4 Bc6 12. Qd2 a5 13. Rad1 Nd7 14. Be3 Nc5 15. Qc2 Qb6 16. Nb5 Rfc8 17. f4 Qa6 18. e5 Be4 19. Qc3 dxe5 20. fxe5 Qc6 21. Rf2 b6 22. Bd4 Rf8 23. Qe3 Rad8 24. Nc3 Bf5 25. Nd5 Rd7 26. Bf3 Qe6 27. h3 h5 28. b3 Rdd8 29. Rfd2 Kh8 30. Qf4 Rb8 31. g4 hxg4 32. hxg4 Nd7 33. gxf5 gxf5 34. Nc7 Bxe5 35. Nxe6 1-0

[Event "Blankenburg op-A 16th"]
[Site "Blankenburg"]
[Date "2008.10.05"]
[Round "4"]
[White "Zerfass, Otfried"]
[Black "Metzger, Albert"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2031"]
[BlackElo "1942"]
[PlyCount "137"]
[EventDate "2008.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e6 2. d3 Nf6 3. Nd2 d5 4. g3 c5 5. Bg2 Nc6 6. Ngf3 Qb6 7. 0-0 Be7 8. Re1 0-0 9. e5 Nd7 10. Nf1 Re8 11. h4 Nf8 12. N1h2 Bd7 13. c3 Rac8 14. Qe2 d4 15. c4 Nb4 16. a3 Nc6 17. Ng5 f6 18. exf6 Bxf6 19. Ne4 Be7 20. Nf3 Na5 21. Bf4 Nb3 22. Rab1 a5 23. Ne5 Bc6 24. Qh5 g6 25. Qg4 Bxe4 26. Bxe4 Bf6 27. h5 Re7 28. hxg6 hxg6 29. Nxg6 Rg7 30. Bh6 Rcc7 31. Qh5 Nxg6 32. Bxg7 Rxg7 33. Bxg6 Nd2 34. Be4 Nxe4 35. Rxe4 Qc6 36. Kg2 e5 37. Rh1 Kf8 38. Qf5 Rf7 39. Rh7 Bg7 40. Qg5 Qb6 41. Qd2 Kg8 42. Rh5 Qf6 43. Qe2 Qc6 44. Qg4 Qf6 45. Re2 Qc6+ 46. Qe4 Qf6 47. g4 Qd6 48. Qh7+ Kf8 49. Rf5 Qc6+ 50. f3 b5 51. Rxf7+ Kxf7 52. Qf5+ Kg8 53. cxb5 Qxb5 54. Qc8+ Kf7 55. Qc7+ Kg8 56. Qd8+ Kf7 57. Qd5+ Kf8 58. Qe4 c4 59. dxc4 Qxc4 60. f4 Qb5 61. fxe5 d3 62. Rd2 Bxe5 63. Qxd3 Qc5 64. Qf5+ Ke8 65. Qd7+ Kf8 66. Rf2+ Kg8 67. Qf7+ Kh8 68. Qf8+ Kh7 69. Qxc5 1-0

[Event "Blankenburg op-A 16th"]
[Site "Blankenburg"]
[Date "2008.10.04"]
[Round "3"]
[White "Hirth, Ulrich"]
[Black "Zerfass, Otfried"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "2156"]
[BlackElo "2031"]
[PlyCount "81"]
[EventDate "2008.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. h3 d6 4. Nf3 Nbd7 5. e3 Bg7 6. c3 0-0 7. Be2 b6 8. 0-0 Bb7 9. a4 a5 10. Nbd2 Re8 11. Nc4 Ne4 12. Bh2 e5 13. Ne1 exd4 14. cxd4 d5 15. Nd2 c5 16. Nb3 Rc8 17. Rc1 Qe7 18. Nc2 c4 19. Nd2 Ndf6 20. Nb1 c3 21. b3 Red8 22. Bd3 Nh5 23. Qe2 Qg5 24. g4 Nhf6 25. Kg2 Ne8 26. Nca3 Bf8 27. Nb5 N8d6 28. f3 Nxb5 29. fxe4 Nd6 30. e5 Ne4 31. Bxe4 dxe4 32. Nxc3 Bb4 33. Nb5 Rxc1 34. Rxc1 Ba6 35. Rc7 Bxb5 36. axb5 h5 37. Bf4 Qh4 38. Bg3 Qg5 39. Qf2 Rf8 40. Bh4 Qh6 41. g5 1-0

[Event "Blankenburg op-A 16th"]
[Site "Blankenburg"]
[Date "2008.10.04"]
[Round "2"]
[White "Zerfass, Otfried"]
[Black "Schalanda, Nils"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo "2031"]
[PlyCount "39"]
[EventDate "2008.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c6 2. d3 d5 3. Nd2 e6 4. g3 Nd7 5. Bg2 Ngf6 6. Ngf3 e5 7. 0-0 Bd6 8. Re1 0-0 9. Nf1 d4 10. h4 Re8 11. N1h2 Nb6 12. Rf1 Ng4 13. Ng5 Nxh2 14. Qh5 h6 15. Nxf7 Bg4 16. Qg6 Qd7 17. Nxh6+ Kf8 18. Kxh2 Re6 19. Qxg4 gxh6 20. Bh3 1-0

[Event "Blankenburg op-A 16th"]
[Site "Blankenburg"]
[Date "2008.10.03"]
[Round "1"]
[White "Froembgen, Wolfgang"]
[Black "Zerfass, Otfried"]
[Result "1/2-1/2"]
[ECO "B38"]
[BlackElo "2031"]
[PlyCount "95"]
[EventDate "2008.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 0-0 8. Be2 d6 9. 0-0 Bd7 10. Rc1 Nxd4 11. Bxd4 Bc6 12. f3 Nd7 13. Be3 a5 14. b3 Nc5 15. Bd3 Qd7 16. Qd2 Rfd8 17. Rfd1 Rdb8 18. Bb1 Qd8 19. Qf2 b6 20. Ne2 Qc7 21. Rd2 Qc8 22. Nd4 Bb7 23. Bc2 Qf8 24. g4 Rc8 25. Qg3 Rd8 26. Rcd1 Rd7 27. Ne2 Rad8 28. a3 Rc7 29. Rb1 Rcc8 30. Qf2 Rb8 31. b4 axb4 32. axb4 Nd7 33. Ba4 Ne5 34. Bb5 Rdc8 35. Ng3 Nxc4 36. Bxc4 Rxc4 37. Bxb6 Qc8 38. b5 Ra8 39. Kg2 Raa4 40. Be3 Rab4 41. Rxb4 Rxb4 42. Rc2 Rc4 43. Rxc4 Qxc4 44. Qe2 Qb3 45. Bf2 d5 46. exd5 Bxd5 47. b6 e5 48. Qe3 1/2-1/2

[Event "Blankenburg op-A 13th"]
[Site "Blankenburg"]
[Date "2005.10.04"]
[Round "7"]
[White "Zerfass, Otfried"]
[Black "Schubert, Hartmut"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2044"]
[BlackElo "1939"]
[PlyCount "59"]
[EventDate "2005.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Be2 d5 5. e5 Nh6 6. h4 c5 7. h5 Nf5 8. h6 Bf8 9. dxc5 e6 10. g4 Ne7 11. Nb5 Kd7 12. c4 Nec6 13. cxd5 exd5 14. Qxd5+ Ke8 15. Nd6+ Bxd6 16. exd6 Be6 17. Qe4 Qa5+ 18. Bd2 Qxc5 19. Bc3 Rg8 20. Rd1 Kd7 21. Rh3 Bxa2 22. Re3 Na6 23. Qa4 Be6 24. Bxa6 bxa6 25. Qxa6 Rgb8 26. Qe2 Re8 27. Qf3 Qc4 28. Rd4 Nxd4 29. Qb7+ Kxd6 30. Bb4+ 1-0

[Event "Blankenburg op-A 13th"]
[Site "Blankenburg"]
[Date "2005.10.03"]
[Round "6"]
[White "Bertram, Thomas"]
[Black "Zerfass, Otfried"]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "1981"]
[BlackElo "2044"]
[PlyCount "44"]
[EventDate "2005.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 g6 2. Bc4 Bg7 3. Nf3 d6 4. d4 Nf6 5. Nc3 0-0 6. h3 c6 7. Bg5 Nxe4 8. Bxf7+ Rxf7 9. Nxe4 Qf8 10. 0-0 Na6 11. Be3 h6 12. c3 Bxh3 13. gxh3 Rxf3 14. Kg2 Rf7 15. Qg4 Kh7 16. Rg1 Qc8 17. Qg3 Qf5 18. f3 Raf8 19. Raf1 Nc7 20. h4 Nd5 21. Bd2 Nf4+ 22. Kh2 Ne2 0-1

[Event "Blankenburg op-A 13th"]
[Site "Blankenburg"]
[Date "2005.10.03"]
[Round "5"]
[White "Zerfass, Otfried"]
[Black "Spandel, Michael"]
[Result "0-1"]
[ECO "C18"]
[WhiteElo "2044"]
[BlackElo "1720"]
[PlyCount "70"]
[EventDate "2005.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Ba5 6. f4 cxd4 7. Qxd4 Nc6 8. Bb5 Nge7 9. Nf3 a6 10. Bxc6+ Nxc6 11. Qd3 d4 12. b4 dxc3 13. bxa5 Qxa5 14. 0-0 0-0 15. Ng5 g6 16. Qh3 h5 17. g4 Kg7 18. f5 exf5 19. gxf5 f6 20. exf6+ Rxf6 21. Ne6+ Bxe6 22. fxe6 Rxf1+ 23. Qxf1 Qf5 24. Be3 Rf8 25. Qe2 Qg4+ 26. Qxg4 hxg4 27. Re1 Rf5 28. Kg2 Kf8 29. Kg3 Re5 30. Kxg4 Ke7 31. Kf4 Kxe6 32. Rg1 Ne7 33. Bd4 Re2 34. Bxc3 Nd5+ 35. Kf3 Re3+ 0-1

[Event "Blankenburg op-A 13th"]
[Site "Blankenburg"]
[Date "2005.10.02"]
[Round "4"]
[White "Reichel, Matti"]
[Black "Zerfass, Otfried"]
[Result "1/2-1/2"]
[ECO "A02"]
[WhiteElo "1727"]
[BlackElo "2044"]
[PlyCount "75"]
[EventDate "2005.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 g6 2. g3 Bg7 3. Bg2 d6 4. f4 Nf6 5. d3 0-0 6. Nf3 Nc6 7. 0-0 Rb8 8. c3 b5 9. Be3 Ng4 10. Bd2 b4 11. h3 Nh6 12. Qc2 a5 13. Be3 Ba6 14. Nbd2 Qd7 15. Rfd1 Kh8 16. Nb3 Ng8 17. Nbd4 Nxd4 18. Bxd4 Nf6 19. e5 Nh5 20. Kh2 f6 21. Re1 fxe5 22. fxe5 e6 23. Rad1 Bb7 24. Qe2 Rbe8 25. exd6 cxd6 26. Bxg7+ Kxg7 27. c4 e5 28. Nd2 Bxg2 29. Qxg2 Rf7 30. Rf1 Ref8 31. b3 Nf6 32. Rde1 Re8 33. Ne4 h6 34. Nxf6 Rxf6 35. Rxf6 Kxf6 36. Rf1+ Kg7 37. Qd5 Qc7 38. Qb5 1/2-1/2

[Event "Blankenburg op-A 13th"]
[Site "Blankenburg"]
[Date "2005.10.01"]
[Round "2"]
[White "Zerfass, Otfried"]
[Black "Braun, Gottfried"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2044"]
[BlackElo "2306"]
[PlyCount "124"]
[EventDate "2005.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bg5 Be6 7. 0-0-0+ Nbd7 8. f4 exf4 9. e5 h6 10. Bxf4 Ng4 11. Bg3 Ne3 12. Re1 Nxf1 13. Rxf1 Bb4 14. Nge2 Ke7 15. Rd1 c6 16. Ne4 Bg4 17. Nd4 Bxd1 18. Rxd1 Rhd8 19. a3 Ba5 20. Nd6 Bb6 21. N4f5+ Kf8 22. Nxb7 Nc5 23. Nxd8 Bxd8 24. Nd4 Rc8 25. Bf4 Bb6 26. Nf5 Ne6 27. Bg3 g6 28. Nd6 Be3+ 29. Kb1 Rd8 30. Rf1 Rd7 31. Rf3 Bb6 32. Rc3 Rc7 33. Rd3 Ke7 34. Rf3 Kf8 35. c3 Rd7 36. Kc2 Bc7 37. Kd3 f5 38. Kc4 Bb8 39. Rd3 f4 40. Bf2 Rh7 41. Bc5 Nxc5 42. Kxc5 Re7 43. Kd4 Re6 44. Ke4 g5 45. Kf5 Re7 46. Kf6 Rd7 47. c4 Bc7 48. c5 Bd8+ 49. Kf5 Be7 50. Kg6 Rd8 51. Kxh6 Rb8 52. b4 Bd8 53. h4 gxh4 54. Rf3 Ke7 55. Rxf4 Ke6 56. Re4 Be7 57. Re2 Rg8 58. Nc4 Bd8 59. Nd2 Rg3 60. Nf3 h3 61. Nd4+ Kd5 62. Rd2 Bg5+ 0-1

[Event "Blankenburg op-A 13th"]
[Site "Blankenburg"]
[Date "2005.10.01"]
[Round "3"]
[White "Zerfass, Otfried"]
[Black "Homburg, David"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2044"]
[BlackElo "2122"]
[PlyCount "32"]
[EventDate "2005.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. f4 e5 7. Nf3 exf4 8. Bxf4 Ne7 9. 0-0 0-0 10. Qd2 f6 11. Bh6 Be6 12. b3 Qc7 13. Rae1 Rae8 14. Bxg7 Kxg7 15. Qe3 b6 16. e5 fxe5 1/2-1/2

[Event "Blankenburg op-A 13th"]
[Site "Blankenburg"]
[Date "2005.09.30"]
[Round "1"]
[White "Perkampus, Lars"]
[Black "Zerfass, Otfried"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "1716"]
[BlackElo "2044"]
[PlyCount "108"]
[EventDate "2005.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 g6 3. Nd2 Bg7 4. e3 d6 5. Ngf3 h6 6. Bh4 g5 7. Bg3 Nh5 8. Bd3 Nd7 9. c3 c6 10. Qc2 Qc7 11. 0-0-0 Ndf6 12. Ne4 Be6 13. Nxf6+ Bxf6 14. Nd2 Qa5 15. b3 Nxg3 16. hxg3 0-0-0 17. Nc4 Qc7 18. Bf5 Kb8 19. Bxe6 fxe6 20. Rh5 d5 21. Nb2 e5 22. Rdh1 exd4 23. exd4 g4 24. Nd3 Qd6 25. Kb2 Bg7 26. Qe2 Rdg8 27. Qxg4 e5 28. dxe5 Bxe5 29. Qe2 Bg7 30. Qd2 Re8 31. Re1 Rhf8 32. Rhh1 Qf6 33. Qf4+ Qxf4 34. gxf4 Kc7 35. Rxe8 Rxe8 36. Re1 Rxe1 37. Nxe1 d4 38. cxd4 Bxd4+ 39. Kc2 Bxf2 40. Nf3 Bg3 41. f5 Kd6 42. Kd3 Kd5 43. a3 a5 44. Nd2 b5 45. Ne4 Bh4 46. g4 c5 47. Nc3+ Kc6 48. Ke4 b4 49. axb4 cxb4 50. Nd5 Kd6 51. Kd4 Bd8 52. Nf4 Bf6+ 53. Kc4 Bg5 54. Nd5 Bd8 1/2-1/2

[Event "Schwarzburg op"]
[Site "Schwarzburg"]
[Date "2005.09.11"]
[Round "7"]
[White "Wirries, Frank Michael"]
[Black "Zerfass, Otfried"]
[Result "1/2-1/2"]
[ECO "B06"]
[BlackElo "2044"]
[PlyCount "75"]
[EventDate "2005.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 108 Extra"]
[Source "ChessBase"]
[SourceDate "2005.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.04"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 c6 5. Nf3 Nd7 6. Bd3 Ngf6 7. h3 Qc7 8. 0-0 0-0 9. Nd2 e5 10. f4 Nh5 11. dxe5 dxe5 12. f5 Nf4 13. Bc4 Nf6 14. fxg6 hxg6 15. Qf3 N6h5 16. g4 Nf6 17. Ne2 Ne6 18. Qg3 b5 19. Bd3 a6 20. Rf2 Bb7 21. Raf1 Nh7 22. h4 Rad8 23. g5 c5 24. b3 Nd4 25. c3 Nf3+ 26. Rxf3 Rxd3 27. Qf2 Qd7 28. Nc1 Rxc3 29. Nb1 Rxe3 30. Qxe3 Qg4+ 31. Rg3 Qxh4 32. Nc3 f5 33. gxf6 Nxf6 34. Rxg6 Nxe4 35. Rxf8+ Kxf8 36. Qf3+ Kg8 37. Qg2 Qe1+ 38. Kh2 1/2-1/2

[Event "Schwarzburg op"]
[Site "Schwarzburg"]
[Date "2005.09.10"]
[Round "5"]
[White "Blanke, Elke"]
[Black "Zerfass, Otfried"]
[Result "1/2-1/2"]
[ECO "A05"]
[BlackElo "2044"]
[PlyCount "109"]
[EventDate "2005.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 108 Extra"]
[Source "ChessBase"]
[SourceDate "2005.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.04"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. Nc3 0-0 5. e3 d6 6. d4 Nc6 7. h3 e5 8. d5 Ne7 9. e4 Ne8 10. Bd3 f5 11. Qe2 Nf6 12. 0-0-0 fxe4 13. Bxe4 Nxe4 14. Nxe4 Bh6+ 15. Kb1 Bd7 16. h4 b5 17. h5 Qe8 18. hxg6 Qxg6 19. Nh4 Qg7 20. Rh2 Rf7 21. Bc1 Bxc1 22. Kxc1 Qg4 23. Qxg4+ Bxg4 24. f3 Bc8 25. c4 bxc4 26. bxc4 Ba6 27. g4 Bxc4 28. Rc2 Bxd5 29. Rxc7 Bxe4 30. fxe4 Rc8 31. Rxc8+ Nxc8 32. Nf5 Rc7+ 33. Kd2 Kf7 34. Ke3 Ke6 35. Rd3 Rc1 36. a3 Rh1 37. Kf2 Rh2+ 38. Kg3 Re2 39. Kf3 Rc2 40. Ke3 Rc6 41. Kf3 Nb6 42. g5 Na4 43. Ng7+ Ke7 44. Nf5+ Kd7 45. Kg4 Nc5 46. Rh3 Nxe4 47. Rxh7+ Kd8 48. Rxa7 d5 49. Ne7 Rd6 50. Kf5 Nxg5 51. Kxg5 d4 52. Nf5 Rd5 53. Kf6 d3 54. Ne3 Rc5 55. Re7 1/2-1/2

[Event "Schwarzburg op"]
[Site "Schwarzburg"]
[Date "2005.09.10"]
[Round "6"]
[White "Zerfass, Otfried"]
[Black "Kaschuba, Juergen"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2044"]
[BlackElo "1787"]
[PlyCount "103"]
[EventDate "2005.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 108 Extra"]
[Source "ChessBase"]
[SourceDate "2005.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.04"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nc6 5. Nf3 Be7 6. Bd3 Nf6 7. 0-0 Nxe4 8. Bxe4 Bd7 9. d5 0-0 10. dxc6 Bxc6 11. Bxc6 bxc6 12. Be3 Bd6 13. Qd4 c5 14. Qg4 Qf6 15. b3 Rab8 16. c4 Rfe8 17. Qg5 Qxg5 18. Nxg5 f5 19. Rfe1 h6 20. Nf3 g5 21. Bd2 e5 22. Bc3 e4 23. Nd2 Kf7 24. g4 Kg6 25. gxf5+ Kxf5 26. Nf1 Bf4 27. Ng3+ Bxg3 28. hxg3 Rbd8 29. Rad1 Rd6 30. Rxd6 cxd6 31. Bd2 Kg4 32. Kg2 Re5 33. Rxe4+ Rxe4 34. f3+ Kf5 35. fxe4+ Kxe4 36. Bc3 d5 37. cxd5 Kxd5 38. Kf3 h5 39. Bf6 g4+ 40. Kf4 Ke6 41. Bc3 Kd5 42. Kg5 c4 43. bxc4+ Kxc4 44. Bf6 h4 45. Kxh4 a5 46. Kxg4 a4 47. a3 Kd5 48. Kf5 Kd6 49. Bg5 Kd7 50. Kf6 Ke8 51. Bh6 Kd7 52. g4 1-0

[Event "Schwarzburg op"]
[Site "Schwarzburg"]
[Date "2005.09.08"]
[Round "3"]
[White "Schubert, Johannes"]
[Black "Zerfass, Otfried"]
[Result "1-0"]
[ECO "E90"]
[BlackElo "2044"]
[PlyCount "107"]
[EventDate "2005.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 108 Extra"]
[Source "ChessBase"]
[SourceDate "2005.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.04"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c4 Nf6 5. Nc3 0-0 6. Bd3 Nc6 7. a3 Bg4 8. h3 Bxf3 9. Qxf3 Nxd4 10. Qd1 c5 11. Be3 Qb6 12. Rb1 Qc6 13. 0-0 e6 14. f3 Rad8 15. Ne2 Nxe2+ 16. Qxe2 d5 17. cxd5 exd5 18. Bb5 Qc7 19. Bg5 a6 20. e5 axb5 21. exf6 Rfe8 22. Qxb5 Bh8 23. Rfe1 Qc6 24. Qxc6 bxc6 25. Re7 Rxe7 26. fxe7 Re8 27. b3 Bd4+ 28. Kf1 f6 29. Bf4 Rxe7 30. h4 Rb7 31. Ke2 c4 32. b4 Be5 33. Bxe5 fxe5 34. a4 Kf7 35. g4 d4 36. a5 Ke6 37. Kd2 Kd5 38. a6 Ra7 39. b5 cxb5 40. Rxb5+ Kc6 41. Rxe5 Rxa6 42. Re6+ Kb5 43. Rxa6 Kxa6 44. f4 Kb6 45. f5 gxf5 46. g5 Kc6 47. h5 Kd6 48. g6 hxg6 49. h6 c3+ 50. Kd3 f4 51. h7 f3 52. h8Q f2 53. Qh2+ Kc5 54. Qxf2 1-0

[Event "Schwarzburg op"]
[Site "Schwarzburg"]
[Date "2005.09.08"]
[Round "2"]
[White "Zerfass, Otfried"]
[Black "Urlao, Bernd"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "2044"]
[PlyCount "53"]
[EventDate "2005.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 108 Extra"]
[Source "ChessBase"]
[SourceDate "2005.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.04"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 0-0 8. Bd3 c4 9. Bh6 Ng6 10. Bxg6 fxg6 11. Bg5 Qe8 12. Nf3 Qf7 13. Qh4 Nc6 14. Be3 Qf5 15. Kd2 Bd7 16. Rab1 Na5 17. Qe7 Ba4 18. Rhc1 Bxc2 19. Rxc2 Qd3+ 20. Kc1 Nb3+ 21. Kb2 Rfe8 22. Qh4 a5 23. Qh3 b5 24. Ng5 h6 25. Nxe6 Ra7 26. Nf4 Qe4 27. Qf3 1-0

[Event "Schwarzburg op"]
[Site "Schwarzburg"]
[Date "2005.09.07"]
[Round "1"]
[White "Koenne, LD."]
[Black "Zerfass, Otfried"]
[Result "1-0"]
[ECO "B08"]
[BlackElo "2044"]
[PlyCount "86"]
[EventDate "2005.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 108 Extra"]
[Source "ChessBase"]
[SourceDate "2005.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.04"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Bc4 d6 4. Nf3 Nf6 5. Nc3 0-0 6. 0-0 c6 7. Bg5 b5 8. Bd3 Qa5 9. Qd2 Bg4 10. a4 Bxf3 11. gxf3 b4 12. Ne2 Re8 13. b3 Nbd7 14. Rad1 e5 15. d5 cxd5 16. exd5 a6 17. Be4 Nc5 18. Ng3 Rac8 19. Bxf6 Bxf6 20. Bd3 Bg7 21. Ne4 Nxd3 22. Qxd3 Qb6 23. Qe3 Qc7 24. Rc1 a5 25. c4 bxc3 26. Rxc3 Qb7 27. Rfc1 f5 28. Rxc8 Rxc8 29. Rxc8+ Qxc8 30. Nxd6 Qd7 31. Nc4 Qxd5 32. Nb6 Qc6 33. Nc4 Qc7 34. Kg2 Kf7 35. Qb6 Qxb6 36. Nxb6 e4 37. Nc4 exf3+ 38. Kxf3 Bc3 39. Kf4 Kf6 40. h4 h6 41. Kf3 Ke6 42. Ke3 Kd5 43. Kd3 Kc5 1-0

[Event "Schwarzburg op"]
[Site "Schwarzburg"]
[Date "2005.09.??"]
[Round "4"]
[White "Zerfass, Otfried"]
[Black "Roeschert, Stephan"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2044"]
[PlyCount "216"]
[EventDate "2005.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 108 Extra"]
[Source "ChessBase"]
[SourceDate "2005.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.04"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 e6 4. Bxc6 bxc6 5. d3 g6 6. f4 Bg7 7. Nf3 Ne7 8. 0-0 Rb8 9. Qe1 0-0 10. b3 Qc7 11. Rb1 d5 12. Bd2 Ba6 13. Na4 c4 14. dxc4 dxc4 15. Rf2 c5 16. Be3 cxb3 17. cxb3 c4 18. Nc5 Bb7 19. bxc4 Rfc8 20. Qc1 Bc6 21. Rxb8 Qxb8 22. Rd2 Qb4 23. Rc2 Rd8 24. a3 Qa5 25. Nd2 Nc8 26. Ndb3 Qc7 27. Rd2 Nd6 28. Qc2 Nb7 29. Rxd8+ Nxd8 30. Qd2 Kf8 31. Bd4 Bh6 32. Be5 Qc8 33. Qd6+ Ke8 34. Bf6 Bf8 35. Qe5 Nb7 36. f5 Bd6 37. Qd4 Qc7 38. fxe6 Nxc5 39. exf7+ Kxf7 40. e5 Nxb3 41. exd6 Qb6 42. c5 Qxc5 43. Qxc5 Nxc5 44. Bd4 Ne4 45. Bxa7 Nxd6 46. Bc5 Ke6 47. g3 Kd5 48. Bb4 Nc4 49. Kf2 Ke4 50. Bc5 Ne5 51. Bd6 Ng4+ 52. Kg1 Kf3 53. Bc5 Bd7 54. Bb6 Nf6 55. Bd4 Ne4 56. Bb6 Nc3 57. Ba5 Ne2+ 58. Kf1 Bh3+ 59. Ke1 Nd4 60. a4 Kg2 61. Bb6 Nf5 62. a5 Kxh2 63. Kf2 Bg2 64. Bc7 Nd4 65. a6 Nb5 66. Bf4 Bc6 67. Bb8 Kh3 68. Bf4 Kg4 69. Bb8 Nd4 70. Bf4 Nf5 71. Bb8 g5 72. Bc7 h5 73. Bb8 Ne7 74. Bc7 Nd5 75. Bd6 Ba8 76. a7 Nc3 77. Bc7 Nb5 78. Bb8 Bb7 79. Be5 Nxa7 80. Bb8 Nc6 81. Bc7 Nb4 82. Bd6 Nd5 83. Bb8 Nf6 84. Kg1 Ne4 85. Kh2 Kf3 86. Bc7 Ba6 87. Bb8 Bf1 88. Bc7 g4 89. Bb8 Bg2 90. Bc7 Nd2 91. Bd6 Nf1+ 92. Kg1 Bh3 93. Bc7 Nxg3 94. Kh2 Nf1+ 95. Kg1 h4 96. Bd8 Kg3 97. Bc7+ Kf3 98. Bd8 g3 99. Bxh4 Ne3 100. Bg5 Ng4 101. Bd8 Ne5 102. Bc7 Nc4 103. Bxg3 Kxg3 104. Kh1 Ne5 105. Kg1 Nd3 106. Kh1 Nc1 107. Kg1 Ne2+ 108. Kh1 Bg2# 0-1

