[Event "GER Seniors Derby 13th"]
[Site "Wesel Undeloh"]
[Date "2014.05.11"]
[Round "9"]
[White "Mahnke, Udo"]
[Black "Mencke, Hans Juergen"]
[Result "0-1"]
[ECO "D03"]
[WhiteElo "1534"]
[BlackElo "1377"]
[PlyCount "117"]
[EventDate "2014.05.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 Nf6 3. Bg5 Be7 4. Nbd2 d5 5. e3 Nbd7 6. Bb5 c6 7. Bd3 a6 8. c3 Qb6 9. Qc2 h6 10. Bh4 c5 11. Qb3 Qd8 12. Qa4 0-0 13. Qc2 c4 14. Be2 b5 15. a3 Bb7 16. h3 Qc7 17. g4 e5 18. dxe5 Nxe5 19. g5 hxg5 20. Bxg5 Nxf3+ 21. Bxf3 Qe5 22. Bf4 Qe6 23. 0-0-0 Ne4 24. Nxe4 dxe4 25. Bg4 f5 26. Bh5 Rfd8 27. Rhg1 Rxd1+ 28. Bxd1 Bc6 29. Bc7 Be8 30. Qe2 Ra7 31. Ba5 Rd7 32. f3 Bh5 33. Qg2 Bf6 34. fxe4 Rxd1+ 35. Rxd1 Bxd1 36. Kxd1 fxe4 37. Bb4 Qd5+ 38. Qd2 Qh5+ 39. Kc2 Qxh3 40. Qd5+ Kh8 41. Qa8+ Kh7 42. Qxe4+ g6 43. Qb7+ Bg7 44. Qe4 Qh5 45. Qg2 Qf5+ 46. Kc1 g5 47. Qh1+ Kg6 48. Qc6+ Qf6 49. Qe4+ Qf5 50. Qc6+ Kh5 51. Qh1+ Kg4 52. Qg2+ Kh4 53. Qh1+ Kg3 54. Bd6+ Be5 55. Bc5 Qf3 56. Qxf3+ Kxf3 57. Kd2 g4 58. Ke1 Bg3+ 59. Kf1 0-1

[Event "GER Seniors Derby 13th"]
[Site "Wesel Undeloh"]
[Date "2014.05.10"]
[Round "7"]
[White "Mahnke, Udo"]
[Black "Jacob, Karl Heinz"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1534"]
[BlackElo "1797"]
[PlyCount "25"]
[EventDate "2014.05.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 d5 2. Bg5 Nf6 3. Nd2 Bf5 4. e3 e6 5. Bb5+ c6 6. Ba4 Be7 7. c3 0-0 8. Bc2 Bxc2 9. Qxc2 Nbd7 10. h3 Ne8 11. Bxe7 Qxe7 12. Ngf3 Nd6 13. g4 1/2-1/2

[Event "GER Seniors Derby 13th"]
[Site "Wesel Undeloh"]
[Date "2014.05.10"]
[Round "8"]
[White "Vonhoff, Joerg"]
[Black "Mahnke, Udo"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "1659"]
[BlackElo "1534"]
[PlyCount "85"]
[EventDate "2014.05.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nf3 Bg4 4. Be2 Nf6 5. h3 Bh5 6. Nc3 Qd8 7. b3 e6 8. Bb2 c6 9. Ne5 Bxe2 10. Qxe2 Nbd7 11. Nxd7 Qxd7 12. f4 Be7 13. g4 0-0-0 14. 0-0-0 Rhg8 15. Rhe1 Nd5 16. Nxd5 Qxd5 17. f5 Bh4 18. Rf1 exf5 19. Rxf5 Qd6 20. Rxf7 Rd7 21. Rxd7 Qxd7 22. Qe3 b6 23. Qe4 h6 24. Rf1 Re8 25. Qd4 Qe6 26. Bc3 Bf6 27. Qd3 Bxc3 28. Qa6+ Kb8 29. dxc3 Qd7 30. Qc4 Kb7 31. Rf7 Re7 32. Rxe7 Qxe7 33. Kb2 a6 34. a4 b5 35. axb5 axb5 36. Qd4 Ka6 37. c4 c5 38. cxb5+ Kxb5 39. Qd3+ Kb6 40. Qc3 Kb5 41. Qc4+ Kb6 42. c3 Qe3 43. b4 1/2-1/2

[Event "GER Seniors Derby 13th"]
[Site "Wesel Undeloh"]
[Date "2014.05.09"]
[Round "6"]
[White "Mahnke, Udo"]
[Black "Bertram, Thomas"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1534"]
[BlackElo "1603"]
[PlyCount "31"]
[EventDate "2014.05.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bh4 d5 4. Nd2 g6 5. Nxe4 dxe4 6. e3 Bg7 7. Bc4 c5 8. c3 cxd4 9. cxd4 0-0 10. Ne2 Nc6 11. Nc3 Qb6 12. Qb3 Nb4 13. Bxe7 a5 14. Bxf8 Kxf8 15. 0-0 Bf5 16. a3 1-0

[Event "GER Seniors Derby 13th"]
[Site "Wesel Undeloh"]
[Date "2014.05.09"]
[Round "5"]
[White "Martin, Michael2222"]
[Black "Mahnke, Udo"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1372"]
[BlackElo "1534"]
[PlyCount "38"]
[EventDate "2014.05.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. b3 Qe5+ 4. Ne2 Qxa1 5. Nbc3 b5 6. d4 c6 7. g3 Na6 8. Bg2 Bd7 9. Nxb5 Qxa2 10. Bd2 e6 11. c3 Rb8 12. Nxa7 Ne7 13. Nc1 Qa5 14. b4 Qb6 15. Qa4 Qxa7 16. Bf1 c5 17. b5 Qb7 18. Qxa6 Qxh1 19. dxc5 Bxb5 0-1

[Event "GER Seniors Derby 13th"]
[Site "Wesel Undeloh"]
[Date "2014.05.08"]
[Round "4"]
[White "Mahnke, Udo"]
[Black "Siemer, Arno"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1534"]
[BlackElo "1638"]
[PlyCount "48"]
[EventDate "2014.05.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bh4 g5 4. f3 gxh4 5. fxe4 e6 6. Nf3 c5 7. d5 d6 8. Qd2 e5 9. Nc3 Qf6 10. Qg5 Qxg5 11. Nxg5 Bh6 12. Nf3 h3 13. gxh3 Be3 14. Nd1 Bh6 15. Rg1 Nd7 16. Nc3 Nb6 17. b3 Bd7 18. Kf2 0-0-0 19. e3 f5 20. Nb5 Bxb5 21. Bxb5 fxe4 22. Nh4 Nxd5 23. Rg3 Rhf8+ 24. Ke2 Nc3+ 0-1

[Event "GER Seniors Derby 13th"]
[Site "Wesel Undeloh"]
[Date "2014.05.08"]
[Round "3"]
[White "Schumann, Lutz"]
[Black "Mahnke, Udo"]
[Result "1/2-1/2"]
[ECO "A10"]
[WhiteElo "1838"]
[BlackElo "1534"]
[PlyCount "117"]
[EventDate "2014.05.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. c4 d5 2. cxd5 Qxd5 3. Nc3 Qd8 4. Nf3 c6 5. d4 Nd7 6. e4 Nb6 7. Be2 Bg4 8. h3 Bxf3 9. Bxf3 e6 10. 0-0 Bd6 11. Re1 Ne7 12. Bg5 h6 13. Bh4 g5 14. Bg3 Bxg3 15. fxg3 Qc7 16. Rc1 Qxg3 17. e5 0-0-0 18. Ne4 Qf4 19. g3 Qf5 20. Bg4 Qg6 21. Nd6+ Rxd6 22. exd6 Nf5 23. Kh2 h5 24. Bxf5 exf5 25. d5 Qxd6 26. dxc6 Qb4 27. b3 f4 28. Qf3 Qd2+ 29. Kh1 Qd5 30. cxb7+ Kxb7 31. Kg2 g4 32. Re7+ Ka6 33. Qxd5 Nxd5 34. Rxf7 f3+ 35. Kh2 Re8 36. hxg4 hxg4 37. a4 Re2+ 38. Kh1 Ne3 39. b4 Nc2 40. Rf6+ Kb7 41. Rf7+ Kb6 42. a5+ Ka6 43. Rb1 Nd4 44. Rd1 Re4 45. Rf4 Rxf4 46. gxf4 Ne2 47. Kh2 g3+ 48. Kh3 g2 49. f5 g1Q 50. Rxg1 Nxg1+ 51. Kg3 Ne2+ 52. Kxf3 Nd4+ 53. Ke4 Nxf5 54. Kxf5 Kb5 55. Ke4 Kxb4 56. Kd3 Kxa5 57. Kc3 Ka4 58. Kb2 a6 59. Ka2 1/2-1/2

[Event "GER Seniors Derby 13th"]
[Site "Wesel Undeloh"]
[Date "2014.05.07"]
[Round "1"]
[White "Mahnke, Udo"]
[Black "Mohr, Harald"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "1534"]
[BlackElo "1774"]
[PlyCount "114"]
[EventDate "2014.05.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 c5 2. Nf3 Nf6 3. Nc3 cxd4 4. Qxd4 Nc6 5. Qh4 d6 6. Bg5 Qb6 7. Na4 Qa5+ 8. Bd2 Qc7 9. Nc3 a6 10. e4 e6 11. Bg5 Be7 12. a3 0-0 13. Bd3 Ne5 14. Nxe5 dxe5 15. f4 h6 16. Bxf6 Bxf6 17. Qf2 exf4 18. 0-0 Bxc3 19. bxc3 e5 20. c4 Be6 21. Qe2 Qc5+ 22. Kh1 Rfc8 23. Rab1 Rab8 24. Rb4 a5 25. Rb5 Qc6 26. Rfb1 f6 27. h3 Bf7 28. Qd2 b6 29. Qf2 Bxc4 30. Rxb6 Bxd3 31. cxd3 Rxb6 32. Qxb6 Qxb6 33. Rxb6 Rc3 34. a4 Ra3 35. Rd6 Rxa4 36. Rd5 Ra1+ 37. Kh2 a4 38. d4 exd4 39. Rxd4 a3 40. Ra4 Kf7 41. h4 g5 42. hxg5 hxg5 43. Kh3 Ke6 44. Kg4 a2 45. Ra6+ Ke5 46. g3 Rg1 47. Rxa2 Rxg3+ 48. Kh5 Kxe4 49. Kg6 f3 50. Kxf6 g4 51. Kg5 Ke3 52. Ra3+ Kf2 53. Kf4 Kg2 54. Rc3 Kh2 55. Ra3 Rg2 56. Ke3 Re2+ 57. Kf4 f2 0-1

[Event "GER Seniors Derby 13th"]
[Site "Wesel Undeloh"]
[Date "2014.05.07"]
[Round "2"]
[White "Ohst, Edgar"]
[Black "Mahnke, Udo"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1640"]
[BlackElo "1534"]
[PlyCount "94"]
[EventDate "2014.05.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Bg4 3. h3 Bh5 4. Nd2 Nf6 5. Ngf3 e6 6. g4 Bg6 7. Ne5 Bd6 8. Nxg6 hxg6 9. Bxd6 Qxd6 10. Bg2 Nc6 11. c3 e5 12. dxe5 Nxe5 13. Qa4+ Qc6 14. Qd4 Qd6 15. 0-0-0 Nc6 16. Qe3+ Qe7 17. Qxe7+ Nxe7 18. e4 0-0-0 19. exd5 Nfxd5 20. Nc4 Nf4 21. Rxd8+ Rxd8 22. Be4 f5 23. Bc2 Nd3+ 24. Bxd3 Rxd3 25. Ne3 Rd7 26. Rd1 c6 27. Rxd7 Kxd7 28. Kd2 Kd6 29. Ng2 Ke5 30. Ke3 Nd5+ 31. Kf3 Nb6 32. Ne1 Nc4 33. Nd3+ Kf6 34. Ke2 b6 35. b3 Nd6 36. f3 c5 37. c4 Nf7 38. f4 Nd6 39. Ne5 Ne4 40. Ke3 g5 41. Nc6 gxf4+ 42. Kxf4 g5+ 43. Ke3 Nc3 44. gxf5 Nxa2 45. Nxa7 Nc1 46. Nc8 Nxb3 47. Nxb6 Kxf5 1/2-1/2

