[Event "Pinneberg-ch 37th"]
[Site "Pinneberg"]
[Date "2019.09.19"]
[Round "7"]
[White "Cassens, Erhard Otto"]
[Black "Weisshorn, Lasse"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1793"]
[BlackElo "1884"]
[PlyCount "43"]
[EventDate "2019.08.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. d4 d5 2. c3 Nf6 3. Bf4 Bf5 4. e3 c5 5. dxc5 Nc6 6. Nf3 e6 7. Nd4 Bg6 8. Nxc6 bxc6 9. Qa4 Qd7 10. b4 Be7 11. b5 Bxc5 12. bxc6 Qe7 13. c7+ Nd7 14. Ba6 0-0 15. c8Q Rfxc8 16. Bxc8 Rxc8 17. Qa6 Nb6 18. 0-0 Rf8 19. Nd2 e5 20. Bg3 f5 21. h3 Rf6 22. Bh4 1-0

[Event "Pinneberg-ch 37th"]
[Site "Pinneberg"]
[Date "2019.09.12"]
[Round "6"]
[White "Sausmikat, Michael"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "A85"]
[WhiteElo "1640"]
[BlackElo "1793"]
[PlyCount "76"]
[EventDate "2019.08.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. Nc3 Nf6 4. Nf3 b6 5. e3 Bb7 6. Be2 Bb4 7. 0-0 0-0 8. Na4 Ne4 9. a3 Be7 10. Nd2 Bg5 11. Bf3 d5 12. Be2 Nd7 13. Nf3 Bf6 14. Ne1 Qe8 15. Qb3 Ba6 16. Nc3 Nxc3 17. bxc3 c5 18. Qa4 Qc8 19. Ra2 cxd4 20. cxd5 Bxe2 21. Rxe2 Nc5 22. Qc4 dxc3 23. a4 Rd8 24. dxe6 Qxe6 25. Qxe6+ Nxe6 26. Nf3 Rac8 27. Rc2 Nc5 28. a5 bxa5 29. Ba3 a4 30. Bb4 Nd3 31. Ba3 a5 32. g3 Nb4 33. Rcc1 g5 34. h3 Rd3 35. Bb2 Rc6 36. Nd4 Bxd4 37. exd4 cxb2 38. Rxc6 Nxc6 0-1

[Event "Pinneberg-ch 37th"]
[Site "Pinneberg"]
[Date "2019.09.05"]
[Round "5"]
[White "Cassens, Erhard Otto"]
[Black "Hotze, Kurt"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "1793"]
[BlackElo "1599"]
[PlyCount "91"]
[EventDate "2019.08.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 e6 3. b3 Bd6 4. Bb2 Nf6 5. g3 c5 6. Bg2 Nc6 7. 0-0 0-0 8. d3 Re8 9. e3 Ng4 10. Re1 f5 11. Nbd2 d4 12. exd4 cxd4 13. Nf1 Bb4 14. Re2 Bc3 15. Bxc3 dxc3 16. Qe1 Nd4 17. Nxd4 Qxd4+ 18. Kh1 Rb8 19. h3 Nf6 20. a4 Bd7 21. Re5 Nd5 22. Nh2 Nb4 23. Nf3 Qb6 24. a5 Qc7 25. Qf2 a6 26. Rc5 Qd6 27. Rxc3 Rec8 28. Rc4 Bb5 29. Rd4 Qe7 30. Ne1 Rc3 31. Qe2 Nc6 32. Bxc6 Bxc6+ 33. Kh2 Bd5 34. Rxd5 Rbc8 35. Re5 Qd6 36. Ra4 b5 37. axb6 Qxb6 38. Rc4 R3xc4 39. bxc4 Rc6 40. Nf3 a5 41. Rb5 Qa7 42. Ne5 Rd6 43. Kg2 a4 44. Qf2 Qa8+ 45. Qf3 Qa7 46. Qb7 1-0

[Event "Pinneberg-ch 37th"]
[Site "Pinneberg"]
[Date "2019.08.29"]
[Round "4"]
[White "Luettig, Hendrik"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "1438"]
[BlackElo "1793"]
[PlyCount "75"]
[EventDate "2019.08.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. e4 e6 2. Nc3 c5 3. Bc4 Nc6 4. Nf3 a6 5. a4 Na5 6. Ba2 b6 7. 0-0 Bb7 8. d3 Ne7 9. Bg5 Qc7 10. Re1 Nec6 11. Ne2 Nb4 12. Bb1 f6 13. Be3 Nbc6 14. c3 Ne5 15. Nd2 Ng4 16. Ng3 Nxe3 17. Rxe3 Bd6 18. Ngf1 Bf4 19. Re1 0-0 20. Ba2 Kh8 21. g3 Bd6 22. Ne3 Be7 23. Nc2 Rad8 24. Ne3 Nc6 25. f4 g5 26. f5 b5 27. fxe6 dxe6 28. Bxe6 Rxd3 29. Nd5 Qe5 30. Bf5 Bc8 31. Qe2 c4 32. Nf3 Bc5+ 33. Kf1 Qe8 34. Ng1 Qf7 35. Bxc8 Rxc8 36. Qg4 Rf8 37. Qf5 Ne5 38. axb5 0-1

[Event "Pinneberg-ch 37th"]
[Site "Pinneberg"]
[Date "2019.08.22"]
[Round "3"]
[White "Cassens, Erhard Otto"]
[Black "Holzhausen, Joerg"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1793"]
[BlackElo "1630"]
[PlyCount "70"]
[EventDate "2019.08.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c3 d5 3. Nd2 Bf5 4. Ngf3 e6 5. Nh4 Bg6 6. Nxg6 hxg6 7. Qc2 c5 8. e3 Nc6 9. Bb5 Qc7 10. Nf3 a6 11. Bxc6+ Qxc6 12. h3 Bd6 13. dxc5 Qxc5 14. a4 Ne4 15. a5 Qc7 16. Qa4+ Ke7 17. Nd2 Nc5 18. Qc2 Rac8 19. Nb3 Ne4 20. Nd4 Qd7 21. Ne2 f5 22. Bd2 g5 23. g3 g4 24. h4 g5 25. Qa4 Rh7 26. Qxd7+ Kxd7 27. b4 Rch8 28. Nd4 gxh4 29. gxh4 Rxh4 30. Rxh4 Rxh4 31. Ke2 Rh2 32. Rf1 Ng3+ 33. Ke1 Nxf1 34. Kxf1 g3 35. Be1 g2+ 0-1

[Event "Pinneberg-ch 37th"]
[Site "Pinneberg"]
[Date "2019.08.15"]
[Round "2"]
[White "Hawranke, Dietrich"]
[Black "Cassens, Erhard Otto"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2033"]
[BlackElo "1793"]
[PlyCount "81"]
[EventDate "2019.08.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. cxd5 Qa5+ 6. Nc3 Nxd5 7. Qb3 Nxc3 8. bxc3 Qc7 9. Nf3 Nc6 10. Bc4 e6 11. 0-0 Be7 12. Re1 Na5 13. Bb5+ Kf8 14. Qc2 Nc4 15. Qe2 Nb6 16. Ne5 Nd5 17. Qh5 Bd6 18. Bd2 Bxe5 19. Rxe5 f6 20. Ree1 Bd7 21. Bxd7 Qxd7 22. c4 Ne7 23. d5 e5 24. f4 g6 25. Qh6+ Kg8 26. fxe5 Nf5 27. Qf4 g5 28. Qe4 fxe5 29. Qxe5 h6 30. Rf1 Ng7 31. Bc3 Re8 32. Qd4 b6 33. Rf6 Rh7 34. Raf1 Qe7 35. d6 Qd7 36. Rf7 Qxf7 37. Rxf7 Kxf7 38. Qf6+ Kg8 39. d7 Re3 40. d8Q+ Ne8 41. Qd5+ 1-0

[Event "Pinneberg-ch 37th"]
[Site "Pinneberg"]
[Date "2019.08.08"]
[Round "1"]
[White "Cassens, Erhard Otto"]
[Black "Sachse, Theo"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1793"]
[BlackElo "1305"]
[PlyCount "59"]
[EventDate "2019.08.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. d4 d5 2. g3 e6 3. Bg2 Nf6 4. c3 h6 5. Nd2 Bd6 6. Ngf3 Nbd7 7. 0-0 0-0 8. c4 dxc4 9. Nxc4 Be7 10. b3 Rb8 11. Qc2 Nd5 12. e4 N5b6 13. Bb2 Nxc4 14. bxc4 f5 15. e5 b6 16. Qb3 Rf7 17. a4 a5 18. Rfd1 Bb7 19. Ba3 Qe8 20. d5 exd5 21. e6 Rf6 22. exd7 Qxd7 23. Bxe7 Qxe7 24. cxd5 Rd8 25. d6+ Qf7 26. Qxf7+ Rxf7 27. Ne5 Bxg2 28. Nxf7 Kxf7 29. Kxg2 cxd6 30. Rab1 1-0

[Event "SVE Seniors op 2nd"]
[Site "Eidelstedt"]
[Date "2019.08.05"]
[Round "7"]
[White "Cassens, Erhard Otto"]
[Black "Juers, Juergen"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1852"]
[BlackElo "1660"]
[PlyCount "175"]
[EventDate "2019.07.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 e6 3. Bg2 d5 4. c3 Nbd7 5. Nd2 Be7 6. Qc2 e5 7. dxe5 Nxe5 8. Ngf3 Nxf3+ 9. Nxf3 c6 10. 0-0 0-0 11. b3 Ne4 12. Bb2 Bf5 13. Qc1 Bf6 14. Nd4 Bxd4 15. cxd4 Qd7 16. f3 Nd6 17. Qf4 Rfe8 18. Rf2 Bg6 19. g4 a5 20. h4 h6 21. Re1 b5 22. e4 Re7 23. e5 Rae8 24. Rc1 Nc8 25. Rc5 Na7 26. Qd2 Qc7 27. f4 Qb6 28. f5 Bh7 29. Rc1 b4 30. Qc2 f6 31. Qc5 Qd8 32. h5 Kf8 33. a3 bxa3 34. Bxa3 Kg8 35. e6 Rb7 36. Bb2 Qb8 37. Qxa5 Rxb3 38. Bc3 Nb5 39. Rf3 Qb7 40. Qa2 Nxc3 41. Rfxc3 Rxc3 42. Rxc3 Ra8 43. Ra3 Rb8 44. Qc2 Qb4 45. Rd3 Qe1+ 46. Kh2 Qh4+ 47. Bh3 Qe1 48. Rd1 Qe3 49. Qd2 Qf3 50. Rf1 Qa3 51. Rf2 Rb1 52. Qe2 Kf8 53. Qa2 Qd6+ 54. Kg2 Qb8 55. Qa3+ Ke8 56. Qa4 Qb7 57. Rc2 Rb2 58. Kg1 Rb1+ 59. Bf1 Rb6 60. Ra2 Rb4 61. Qa8+ Qxa8 62. Rxa8+ Ke7 63. Ra7+ Kf8 64. Rc7 Rxd4 65. Be2 Rd2 66. Kf2 Rc2 67. Ke3 d4+ 68. Kd3 Rc1 69. Kd2 Rc3 70. Rc8+ Ke7 71. Rh8 Bxf5 72. gxf5 Re3 73. Rc8 Kd6 74. Rd8+ Ke7 75. Rd7+ Kf8 76. Rc7 Rc3 77. Bd1 c5 78. Ba4 Re3 79. Rxc5 Re5 80. Rc8+ Ke7 81. Bc2 Re3 82. Rc7+ Kf8 83. Rd7 Rh3 84. Bd1 Rh2+ 85. Kd3 Rf2 86. Ke4 Rf1 87. Bf3 Rf2 88. Rxd4 1-0

[Event "SVE Seniors op 2nd"]
[Site "Eidelstedt"]
[Date "2019.07.31"]
[Round "6"]
[White "Cassens, Erhard Otto"]
[Black "Blumenberg, Walter"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1852"]
[BlackElo "1925"]
[PlyCount "88"]
[EventDate "2019.07.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 e6 2. c3 d5 3. Bf4 Nf6 4. e3 Be7 5. Nd2 0-0 6. Bd3 Nbd7 7. Bg3 c5 8. f4 Re8 9. Ngf3 Qb6 10. Rb1 Nf8 11. Ne5 Bd7 12. Nxd7 N6xd7 13. Bf2 Qc7 14. 0-0 Rac8 15. Bg3 f5 16. Bb5 a6 17. Be2 cxd4 18. exd4 Bd6 19. Bd3 Nf6 20. Qf3 Ng6 21. h3 Ne4 22. Bxe4 fxe4 23. Qe3 Rf8 24. c4 Bxf4 25. Bxf4 Nxf4 26. cxd5 exd5 27. Rbc1 Qxc1 28. Rxc1 Rxc1+ 29. Kh2 Rc2 30. g3 Nd3 31. Kg1 Rc1+ 32. Kg2 Rf2+ 33. Qxf2 Nxf2 34. Kxf2 Rc2 35. Ke3 Rxb2 36. Nb3 Rxa2 37. Kf4 Ra3 38. Nc5 Rf3+ 39. Ke5 Rxg3 40. Kxd5 e3 41. Nd3 e2 42. Ne1 Rxh3 43. Ke6 Kf8 44. d5 Ke8 0-1

[Event "SVE Seniors op 2nd"]
[Site "Eidelstedt"]
[Date "2019.07.29"]
[Round "5"]
[White "Hawranke, Dietrich"]
[Black "Cassens, Erhard Otto"]
[Result "1-0"]
[ECO "E14"]
[WhiteElo "2110"]
[BlackElo "1852"]
[PlyCount "87"]
[EventDate "2019.07.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. e3 Ba6 5. Nc3 Bb7 6. Bd3 Bb4 7. 0-0 Bxc3 8. bxc3 Be4 9. Be2 d6 10. Nd2 Bb7 11. Bf3 Bxf3 12. Qxf3 Nbd7 13. Qc6 0-0 14. f4 Rc8 15. Ba3 Re8 16. Rae1 Nf8 17. Qa4 Qd7 18. Qd1 c5 19. Bb2 e5 20. fxe5 dxe5 21. Nf3 e4 22. Ne5 Qe6 23. Rf4 Ng6 24. Nxg6 hxg6 25. d5 Qd6 26. Ref1 Re5 27. Bc1 Rh5 28. h3 Qe5 29. Bd2 Rf5 30. Qa4 Rc7 31. Be1 Rxf4 32. Rxf4 Nh5 33. Rg4 Kh7 34. Qc2 f5 35. Rg5 Rf7 36. g4 Kh6 37. Bh4 Nf6 38. Kg2 Nh7 39. Bg3 Qf6 40. h4 fxg4 41. Bf4 Nxg5 42. hxg5+ Qxg5 43. Bxg5+ Kxg5 44. Qxe4 1-0

[Event "SVE Seniors op 2nd"]
[Site "Eidelstedt"]
[Date "2019.07.24"]
[Round "4"]
[White "Cassens, Erhard Otto"]
[Black "Fegebank, Fritz"]
[Result "1/2-1/2"]
[ECO "E61"]
[WhiteElo "1852"]
[BlackElo "1912"]
[PlyCount "34"]
[EventDate "2019.07.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. Nf3 Nd7 5. e3 Ngf6 6. Be2 0-0 7. Bd2 e5 8. Qc2 c6 9. 0-0 Re8 10. dxe5 dxe5 11. Rfd1 Qc7 12. e4 Nc5 13. Be3 Ne6 14. Ng5 Nd4 15. Bxd4 exd4 16. Na4 Qf4 17. Nf3 Qxe4 1/2-1/2

[Event "SVE Seniors op 2nd"]
[Site "Eidelstedt"]
[Date "2019.07.22"]
[Round "3"]
[White "Van Riesen, Klaus"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "A97"]
[WhiteElo "2053"]
[BlackElo "1852"]
[PlyCount "63"]
[EventDate "2019.07.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. c4 f5 2. g3 Nf6 3. Bg2 e6 4. Nc3 Be7 5. Nf3 d6 6. 0-0 0-0 7. d4 Qe8 8. Re1 d5 9. cxd5 exd5 10. Qb3 c6 11. e4 fxe4 12. Nxe4 Nxe4 13. Rxe4 Kh8 14. Re2 Qd8 15. Bd2 Bd6 16. Ne5 Nd7 17. Nd3 Qb6 18. Bf4 Bxf4 19. Nxf4 Nf6 20. Qxb6 axb6 21. Re7 Re8 22. Rxe8+ Nxe8 23. a3 Nd6 24. Nd3 Bf5 25. Ne5 Kg8 26. g4 Bg6 27. Bf1 b5 28. Nxg6 hxg6 29. Bd3 Kf7 30. Bc2 Nc4 31. Rb1 Re8 32. Kf1 0-1

[Event "SVE Seniors op 2nd"]
[Site "Eidelstedt"]
[Date "2019.07.17"]
[Round "2"]
[White "Cassens, Erhard Otto"]
[Black "Brueckner, Gerhard"]
[Result "1-0"]
[ECO "A44"]
[WhiteElo "1852"]
[BlackElo "1903"]
[PlyCount "141"]
[EventDate "2019.07.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 c5 2. d5 d6 3. Nc3 e5 4. e4 Nf6 5. Nf3 Be7 6. h3 Nbd7 7. a4 a5 8. Bb5 0-0 9. Be3 Ne8 10. Bd3 Ndf6 11. g4 Qb6 12. Nb5 Nc7 13. Nxc7 Qxc7 14. Nd2 Bd7 15. c4 Qc8 16. Qc2 Ne8 17. Nf1 Nc7 18. Ng3 Na6 19. Bd2 Nb4 20. Bxb4 cxb4 21. b3 Qc5 22. 0-0-0 Rfc8 23. Rhf1 Ra6 24. Kb1 Rb6 25. Qa2 Bf6 26. Ne2 Ra6 27. Qb2 Raa8 28. Nc1 Rab8 29. Be2 Bh4 30. Nd3 Qc7 31. Ne1 Bg5 32. Ng2 Qd8 33. Bd3 Qe8 34. Qa2 Bd8 35. Ne3 Bb6 36. Nf5 Qf8 37. Ne3 Qe8 38. Nc2 Qd8 39. Ne3 Qe8 40. Nf5 Qf8 41. Qe2 g6 42. Ne3 Qe8 43. Bc2 Bd4 44. Rc1 Bxa4 45. bxa4 b3 46. Bxb3 Rc5 47. Nc2 b5 48. cxb5 Rcxb5 49. axb5 Rxb5 50. Nxd4 exd4 51. Ka2 a4 52. Bc4 Rc5 53. Qb2 a3 54. Qb4 Qxe4 55. Rfe1 Qf4 56. Kxa3 Rc8 57. Qb7 Rc5 58. Qb8+ Kg7 59. Qb2 Ra5+ 60. Kb4 Ra8 61. Rcd1 Kf8 62. Qxd4 Qf3 63. Qe3 Qf6 64. Rd4 Qd8 65. Kc3 Ra3+ 66. Bb3 Qa5+ 67. Kb2 Qa7 68. Qc3 Ra5 69. Re8+ Kxe8 70. Re4+ Kd7 71. Qc6+ 1-0

[Event "SVE Seniors op 2nd"]
[Site "Eidelstedt"]
[Date "2019.07.15"]
[Round "1"]
[White "Warneke, Perygrin"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "A88"]
[WhiteElo "1653"]
[BlackElo "1852"]
[PlyCount "82"]
[EventDate "2019.07.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 Nf6 3. c4 d6 4. Nc3 g6 5. g3 Bg7 6. Bg2 0-0 7. 0-0 c6 8. Ne1 Qc7 9. e4 fxe4 10. Nxe4 Nxe4 11. Bxe4 Nd7 12. Bg2 Nf6 13. Nc2 Bg4 14. f3 Be6 15. Ne3 Bh6 16. b3 Bg7 17. Bb2 d5 18. c5 Nd7 19. f4 Bf5 20. Nxf5 gxf5 21. Qd2 Nf6 22. Rae1 Ne4 23. Qe2 Qa5 24. a3 Rf7 25. b4 Qc7 26. Qe3 a5 27. Qe2 axb4 28. axb4 b5 29. Ra1 Rff8 30. Bxe4 fxe4 31. Rxa8 Rxa8 32. Ra1 Rxa1+ 33. Bxa1 Qa7 34. Qb2 Qa4 35. Kg2 Qd1 36. Kh3 Qh5+ 37. Kg2 Qf3+ 38. Kh3 h5 39. Qa2 Bf6 40. Qa8+ Kg7 41. Qc8 Qf1# 0-1

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2019.06.15"]
[Round "8"]
[White "Cassens, Erhard Otto"]
[Black "Solar, Peter"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "1852"]
[BlackElo "1818"]
[PlyCount "38"]
[EventDate "2019.06.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c3 g6 3. Bf4 Bg7 4. Nd2 d6 5. e3 0-0 6. Be2 c6 7. g4 Nd5 8. Bg3 e5 9. e4 Nc7 10. dxe5 dxe5 11. Nc4 Qe7 12. Qd6 Qxd6 13. Nxd6 b5 14. Nxc8 Rxc8 15. Nf3 Nd7 16. 0-0-0 Nc5 17. Nxe5 Bxe5 18. Bxe5 Nxe4 19. Rd7 Nd5 1/2-1/2

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2019.06.14"]
[Round "7"]
[White "Von Elsner, Mathias"]
[Black "Cassens, Erhard Otto"]
[Result "1/2-1/2"]
[ECO "A10"]
[WhiteElo "1816"]
[BlackElo "1852"]
[PlyCount "39"]
[EventDate "2019.06.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 f5 2. g3 e6 3. Bg2 c6 4. Nf3 Nf6 5. 0-0 d5 6. d3 Bd6 7. Nc3 0-0 8. e4 Bb4 9. cxd5 fxe4 10. Ng5 exd5 11. dxe4 Bxc3 12. bxc3 dxe4 13. Qb3+ Qd5 14. c4 Qd3 15. Nxe4 Qxb3 16. axb3 Nxe4 17. Bxe4 Bf5 18. Bg2 Nd7 19. Be3 a6 20. Rfe1 1/2-1/2

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2019.06.13"]
[Round "6"]
[White "Cassens, Erhard Otto"]
[Black "Roemer, Michael"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1852"]
[PlyCount "91"]
[EventDate "2019.06.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c3 d5 3. Bf4 c5 4. e3 Nc6 5. Nd2 e6 6. Ngf3 cxd4 7. exd4 Nh5 8. Be3 Bd6 9. Ne5 g6 10. Nxc6 bxc6 11. g3 f6 12. Be2 Ng7 13. f4 Kf7 14. Nf3 Qc7 15. Bd3 a5 16. Qe2 Re8 17. 0-0 Nf5 18. Bd2 Qb6 19. Rab1 c5 20. g4 Ne7 21. Be3 Ba6 22. Bxa6 Rxa6 23. Kg2 c4 24. Nh4 Qc7 25. Rbe1 Nc6 26. Bc1 Raa8 27. Qf3 Ne7 28. Qe3 Qd7 29. Re2 f5 30. Rfe1 Nc6 31. h3 a4 32. Nf3 h6 33. Qf2 a3 34. bxa3 Re7 35. Qh4 Kg7 36. Ne5 Bxe5 37. fxe5 Rh8 38. Qf6+ Kh7 39. gxf5 exf5 40. Qh4 Kg7 41. Qf6+ Kh7 42. Bxh6 g5 43. Bxg5 Rg7 44. h4 Rg6 45. e6 Qd6 46. Qf7+ 1-0

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2019.06.12"]
[Round "5"]
[White "Christensen, Andreas"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "C06"]
[WhiteElo "1854"]
[BlackElo "1852"]
[PlyCount "118"]
[EventDate "2019.06.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 b6 7. f4 Ba6 8. Ndf3 Bxd3 9. Qxd3 g6 10. Ne2 Nc6 11. Bd2 c4 12. Qc2 Be7 13. Be3 b5 14. g4 f5 15. gxf5 gxf5 16. Rg1 Nf8 17. Ng3 Bh4 18. Ke2 Bxg3 19. Rxg3 Qd7 20. Rag1 Ng6 21. h4 0-0-0 22. h5 Nge7 23. Bc1 Rhg8 24. Ng5 Rg7 25. h6 Rg6 26. Nf7 Rdg8 27. Rxg6 Rxg6 28. Qd1 Kb8 29. Rxg6 Nxg6 30. Nd6 Nd8 31. Qg1 Nf7 32. Nxf7 Qxf7 33. b3 cxb3 34. Ba3 Nxf4+ 35. Ke3 Ng6 36. axb3 f4+ 37. Kf2 Qf5 38. Qf1 Qc2+ 39. Kg1 a6 40. Bd6+ Kb7 41. Qa1 f3 42. Qf1 Qxc3 43. Qb1 Qxd4+ 44. Kf1 Qe3 45. Qc2 Qe2+ 46. Qxe2 fxe2+ 47. Kxe2 Nh4 48. b4 Nf5 49. Bf8 Kc6 50. Kf3 Kd7 51. Kg4 Ke8 52. Bc5 Nxh6+ 53. Kg5 Nf5 54. Kf6 Kd7 55. Kg5 d4 56. Kf4 h5 57. Ke4 h4 58. Kf3 d3 59. Bf2 Kc6 0-1

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2019.06.11"]
[Round "4"]
[White "Cassens, Erhard Otto"]
[Black "Schwarzman, Isja"]
[Result "1-0"]
[ECO "A81"]
[WhiteElo "1852"]
[BlackElo "1910"]
[PlyCount "137"]
[EventDate "2019.06.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 f5 2. c3 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nd2 d6 6. Nh3 e5 7. Qb3 c6 8. dxe5 dxe5 9. Nc4 Qe7 10. Qa3 Qxa3 11. Nxa3 0-0 12. Nc4 Ne8 13. Bg5 h6 14. Be7 Rf7 15. Bd6 Nd7 16. a4 g5 17. f4 g4 18. Nf2 e4 19. 0-0-0 b5 20. axb5 cxb5 21. Na3 Nxd6 22. Rxd6 Bf8 23. Rc6 Rb8 24. Nc2 Bb7 25. Re6 Nc5 26. Re5 Bd6 27. Rxc5 Bxc5 28. e3 b4 29. Bf1 Rc7 30. h3 bxc3 31. bxc3 Rbc8 32. c4 h5 33. hxg4 hxg4 34. Rh5 Rf8 35. Nd1 Kg7 36. Nc3 Kg6 37. Rh2 Rd8 38. Nb5 Rh7 39. Rxh7 Kxh7 40. Nbd4 Kg6 41. Ne6 Rc8 42. Nxc5 Rxc5 43. Kd2 Rc8 44. Nd4 Kf6 45. Kc3 Rh8 46. c5 Rh1 47. Bc4 Rg1 48. c6 Bc8 49. Ne2 Rb1 50. Kd4 a5 51. Kc5 Ke7 52. Bb5 Rb4 53. Nd4 Rb1 54. Kd5 Rg1 55. Ne2 Rg2 56. Ke5 a4 57. Nc3 a3 58. Nd5+ Kf7 59. Bc4 Be6 60. c7 a2 61. Nc3 a1Q 62. Bxe6+ Kg7 63. c8Q Qa7 64. Qg8+ Kh6 65. Qg5+ Kh7 66. Bxf5+ Kh8 67. Qh5+ Kg8 68. Be6+ Kg7 69. Qxg4+ 1-0

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2019.06.10"]
[Round "3"]
[White "Woynowski, Manfred"]
[Black "Cassens, Erhard Otto"]
[Result "1/2-1/2"]
[ECO "A84"]
[WhiteElo "1904"]
[BlackElo "1852"]
[PlyCount "128"]
[EventDate "2019.06.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 f5 2. d4 e6 3. g3 d5 4. Bg2 c6 5. b3 Nf6 6. Nf3 Bb4+ 7. Bd2 Qe7 8. 0-0 Bxd2 9. Nbxd2 0-0 10. Ne5 Nbd7 11. Ndf3 Nxe5 12. Nxe5 Bd7 13. e3 Be8 14. a3 Bh5 15. Qc2 Ng4 16. Nd3 Bg6 17. Nf4 Rac8 18. b4 b5 19. c5 e5 20. Nxg6 hxg6 21. h3 Nh6 22. dxe5 Qxe5 23. a4 a6 24. axb5 axb5 25. Ra6 g5 26. Qd2 Nf7 27. Rd1 Rfd8 28. Bf3 Qc7 29. Qc2 g6 30. Rda1 Qe5 31. Rd1 Qc7 32. Kg2 Ra8 33. Rxa8 Rxa8 34. g4 Qe5 35. Qb3 Rd8 36. Qa2 Qe7 37. Qa6 Ne5 38. Be2 Qd7 39. Rd4 Kg7 40. Qa1 Kh6 41. Qh1 Qe7 42. h4 Kg7 43. gxf5 Rh8 44. fxg6 Nxg6 45. h5 Nh4+ 46. Kf1 Qf6 47. Qg1 Kh6 48. Qh2 Ra8 49. Rd1 Re8 50. Qg3 Nf5 51. Qf3 Rf8 52. Bd3 Ng7 53. Qxf6+ Rxf6 54. e4 d4 55. Be2 Ne6 56. Bg4 d3 57. Rxd3 Nf4 58. Rd6 Kg7 59. e5 Rh6 60. Bf3 Re6 61. Bxc6 Rxe5 62. h6+ Kh7 63. Bxb5 Ne6 64. Bd3+ Kg8 1/2-1/2

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2019.06.09"]
[Round "2"]
[White "Cassens, Erhard Otto"]
[Black "Quitzau, Lukas"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1852"]
[BlackElo "1658"]
[PlyCount "79"]
[EventDate "2019.06.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c3 g6 3. Bf4 Bg7 4. Nd2 d6 5. e3 c5 6. Be2 Nc6 7. Ngf3 Bf5 8. Nh4 cxd4 9. Nxf5 gxf5 10. exd4 e5 11. dxe5 dxe5 12. Bg5 Qd5 13. f3 e4 14. Bc4 Qc5 15. Qe2 0-0 16. Be3 Qe7 17. 0-0-0 Ne5 18. fxe4 fxe4 19. Bg5 Nxc4 20. Nxc4 Rfd8 21. Rde1 b5 22. Ne3 Qc5 23. Bxf6 Bxf6 24. Qg4+ Qg5 25. Kc2 Re8 26. Nd5 Kg7 27. Qxg5+ Bxg5 28. Nc7 f5 29. Nxa8 Rxa8 30. g3 e3 31. Re2 Rd8 32. Rd1 Rxd1 33. Kxd1 Kf6 34. Kc2 Ke5 35. Kd3 h5 36. b3 Kd5 37. h3 h4 38. gxh4 Bh6 39. Rxe3 Bxe3 40. Kxe3 1-0

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2019.06.08"]
[Round "1"]
[White "Bernhard, Ralph"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "A80"]
[WhiteElo "1728"]
[BlackElo "1852"]
[PlyCount "112"]
[EventDate "2019.06.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 f5 2. Bg5 g6 3. e3 c6 4. Bd3 d6 5. Nd2 Qb6 6. Nc4 Qc7 7. c3 Be6 8. Nf3 Bg7 9. h4 Nf6 10. Qc2 Nbd7 11. 0-0-0 b5 12. Ncd2 d5 13. Bf4 Qa5 14. Kb1 Ne4 15. Nb3 Qb6 16. h5 a5 17. Bxe4 fxe4 18. Nh2 a4 19. Nd2 gxh5 20. f3 exf3 21. gxf3 Bf7 22. Rdg1 Bf8 23. Ka1 b4 24. cxb4 a3 25. b3 Bg6 26. Qc3 e6 27. Nhf1 Bxb4 28. Qc1 Qa5 29. Rxg6 hxg6 30. Qxc6 Qa6 31. Qc2 Kf7 32. Rg1 Rhg8 33. Qc7 Ra7 34. Qc2 Qe2 35. Kb1 Qe1+ 36. Qc1 Bxd2 37. Nxd2 Qxc1+ 38. Rxc1 g5 39. Bh2 g4 40. fxg4 Rxg4 41. Bf4 Rg2 42. Nf3 Rb2+ 43. Ka1 Rf2 44. Ng5+ Kf6 45. Nh7+ Kf5 46. Ng5 Nf6 47. Kb1 Ne4 48. Nxe4 Kxe4 49. Rh1 Ra6 50. Rc1 h4 51. Rc2 Rxc2 52. Kxc2 Rc6+ 53. Kd2 h3 54. Bh2 Rc8 55. Bf4 Kf3 56. Bd6 Kg2 0-1

[Event "Hamburg-ch Seniors 65+"]
[Site "Hamburg"]
[Date "2018.11.08"]
[Round "9"]
[White "Cassens, Erhard Otto"]
[Black "Albrecht, Norbert"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1816"]
[BlackElo "1853"]
[PlyCount "99"]
[EventDate "2018.10.31"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 Nf6 2. c3 d5 3. Bf4 e6 4. e3 Bd6 5. Bg5 Nbd7 6. f4 c5 7. Nf3 Qb6 8. Qb3 Ng4 9. Qxb6 Nxb6 10. Bb5+ Bd7 11. Bxd7+ Nxd7 12. Ke2 h6 13. Bh4 Rc8 14. Ne5 Ngxe5 15. fxe5 Bb8 16. Rf1 b5 17. Nd2 a5 18. Rf3 g5 19. Be1 a4 20. a3 Ba7 21. h3 Bb6 22. Bg3 Bd8 23. Raf1 0-0 24. Be1 Be7 25. g4 Nb6 26. Rh1 Nc4 27. Nxc4 bxc4 28. Bd2 Rb8 29. Bc1 Rb7 30. Kd1 Kg7 31. Re1 Rd7 32. Kc2 Kg6 33. e4 f6 34. exd5 cxd4 35. cxd4 Rxd5 36. Kc3 fxe5 37. Rxf8 exd4+ 38. Kxc4 Rc5+ 39. Kxd4 Bxf8 40. Rxe6+ Kf7 41. Re1 Rc2 42. Kd3 Rh2 43. Rf1+ Kg8 44. Rf3 Bg7 45. Bd2 Bxb2 46. Bb4 Bg7 47. Kc4 Rb2 48. Rd3 Kf7 49. Rd7+ Kg6 50. Rxg7+ 1-0

[Event "Hamburg-ch Seniors 65+"]
[Site "Hamburg"]
[Date "2018.11.07"]
[Round "8"]
[White "Lipka, Werner"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "C05"]
[WhiteElo "1630"]
[BlackElo "1816"]
[PlyCount "116"]
[EventDate "2018.10.31"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Ngf3 c5 6. c3 Nc6 7. Be2 Qb6 8. Nb3 a5 9. a4 c4 10. Nbd2 f6 11. exf6 gxf6 12. b3 cxb3 13. Nxb3 Qc7 14. Bb5 Na7 15. Bd2 Nxb5 16. axb5 a4 17. 0-0 Nb6 18. Nc1 Bd7 19. Re1 0-0-0 20. Na2 Re8 21. Qc1 Bd6 22. Rb1 Kb8 23. Nb4 Rhg8 24. Be3 Rc8 25. Na2 Be8 26. Bd2 Qg7 27. g3 Qg4 28. Kg2 Bh5 29. Qd1 Qf5 30. Be3 Bg4 31. Rc1 Qh5 32. Qe2 Rc4 33. Rcd1 Qe8 34. Rb1 Bf5 35. Rb2 Be4 36. Kg1 a3 37. Rb3 Qh5 38. Nd2 Qxe2 39. Rxe2 Rc7 40. Nxe4 dxe4 41. Bd2 f5 42. Bc1 Nc4 43. Nb4 Rgc8 44. Kg2 Na5 45. Rxa3 Bxb4 46. Bf4 Bxa3 47. Rc2 Ka7 48. Bxc7 Rxc7 49. c4 Rxc4 50. Rd2 Bb4 51. Rd1 Rc2 52. d5 exd5 53. Rxd5 Rc5 54. Rd7 Rc2 55. Rf7 e3 56. Rxf5 e2 57. Re5 e1Q 58. Rxe1 Bxe1 0-1

[Event "Hamburg-ch Seniors 65+"]
[Site "Hamburg"]
[Date "2018.11.06"]
[Round "7"]
[White "Cassens, Erhard Otto"]
[Black "Blumenberg, Walter"]
[Result "0-1"]
[ECO "A84"]
[WhiteElo "1816"]
[BlackElo "1915"]
[PlyCount "74"]
[EventDate "2018.10.31"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 e6 2. c4 d5 3. Nc3 f5 4. e3 c6 5. Nf3 Bd6 6. b3 Nf6 7. c5 Bc7 8. Be2 0-0 9. b4 Qe8 10. Bb2 Nbd7 11. Qc2 e5 12. dxe5 Nxe5 13. Nxe5 Bxe5 14. g3 Bc7 15. 0-0 Bd7 16. Bd3 Qh5 17. f3 Rae8 18. Rae1 Qg5 19. Bc1 Qh5 20. Ne2 g6 21. Rf2 d4 22. Nxd4 f4 23. g4 Qg5 24. e4 Kg7 25. Bb2 Be5 26. Ne2 h5 27. Bxe5 Rxe5 28. h3 Rh8 29. Rg2 Qh4 30. Qd2 hxg4 31. Nxf4 gxf3 32. Rxg6+ Kf8 33. Rg4 Rg5 34. Ng6+ Rxg6 35. Rxg6 Qxh3 36. Rxf6+ Ke8 37. Qg5 Qh2+ 0-1

[Event "Hamburg-ch Seniors 65+"]
[Site "Hamburg"]
[Date "2018.11.05"]
[Round "6"]
[White "Grimm, Uwe"]
[Black "Cassens, Erhard Otto"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "2065"]
[BlackElo "1816"]
[PlyCount "127"]
[EventDate "2018.10.31"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 g6 3. e3 Bg7 4. d4 Nf6 5. Bd3 0-0 6. c3 b6 7. 0-0 c5 8. Qe2 Bb7 9. Nbd2 Nc6 10. Qe1 e6 11. a3 Nd7 12. g4 f5 13. Qg3 Nf6 14. gxf5 exf5 15. Qh3 Qe7 16. Ne5 c4 17. Ndxc4 Nxd4 18. exd4 dxc4 19. Bxc4+ Bd5 20. Bxd5+ Nxd5 21. Bd2 Nf6 22. Be1 Ne4 23. Qd3 Bxe5 24. fxe5 Rad8 25. Qe3 Qe6 26. Bh4 Rd7 27. Bg5 Qb3 28. Bh6 Rc8 29. Qe2 Qe6 30. Be3 Rg7 31. Rad1 Qd5 32. Bh6 Rgc7 33. Qg2 Rf7 34. h4 Kh8 35. Rd3 Qe6 36. Bf4 Rd7 37. Kh1 h5 38. Bg5 Kh7 39. Rdf3 b5 40. Kh2 a6 41. Rg1 a5 42. Bd2 a4 43. Bg5 Qf7 44. Qe2 Qd5 45. Rg2 Rc4 46. Bc1 Qe6 47. Qe3 Rc6 48. Rf1 Kg8 49. Qe2 Rf7 50. Qxb5 Rb6 51. Qxa4 Qe7 52. Qd1 Kg7 53. Bg5 Nxg5 54. hxg5 Rf8 55. Qf3 Rfb8 56. Rff2 Rb3 57. Qf4 Qb7 58. e6 Qe7 59. Qe5+ Kh7 60. d5 R8b5 61. c4 Rc5 62. Rc2 Rb6 63. b4 Rxe6 64. Qxe6 1-0

[Event "Hamburg-ch Seniors 65+"]
[Site "Hamburg"]
[Date "2018.11.04"]
[Round "5"]
[White "Cassens, Erhard Otto"]
[Black "Strenzke, Guenter"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1816"]
[BlackElo "1986"]
[PlyCount "93"]
[EventDate "2018.10.31"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 d5 2. c3 e6 3. Bf4 Bd6 4. Bg3 Nf6 5. Nd2 0-0 6. e3 b6 7. Bd3 Bb7 8. Bh4 Nbd7 9. Qc2 Be7 10. Ngf3 Re8 11. Ne5 Nf8 12. Bb5 N6d7 13. Bxe7 Rxe7 14. Nxd7 Nxd7 15. Bd3 Nf8 16. f4 c5 17. 0-0 Rc8 18. Qd1 f6 19. Nf3 Qd6 20. Rf2 Nd7 21. Bb5 Bc6 22. Bxc6 Rxc6 23. Qa4 Rc7 24. Rd1 Re8 25. dxc5 bxc5 26. c4 Rd8 27. Qc2 Nb6 28. b3 Qe7 29. Rfd2 Rcd7 30. e4 d4 31. e5 a5 32. Qe4 f5 33. Qe1 h6 34. Rd3 Ra7 35. a4 Nd7 36. Qg3 Rb8 37. Nh4 Nf8 38. Ng6 Nxg6 39. Qxg6 Qf7 40. Qg3 Rab7 41. Rf1 Rb4 42. Rff3 Kh7 43. h4 g6 44. Qe1 Qc7 45. Qd1 Qb7 46. Rh3 h5 47. Qf3 1/2-1/2

[Event "Hamburg-ch Seniors 65+"]
[Site "Hamburg"]
[Date "2018.11.03"]
[Round "4"]
[White "Weiss, Hartwig"]
[Black "Cassens, Erhard Otto"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "1948"]
[BlackElo "1816"]
[PlyCount "71"]
[EventDate "2018.10.31"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 f5 3. g3 c6 4. Bg2 Nf6 5. Bg5 Bb4+ 6. c3 Be7 7. Nbd2 0-0 8. 0-0 d5 9. Ne5 Nbd7 10. Bxf6 gxf6 11. Nd3 Bd6 12. e3 b6 13. c4 Bb7 14. Nf4 Re8 15. cxd5 cxd5 16. Qb3 Nf8 17. Rac1 Rc8 18. Rc3 Rxc3 19. Qxc3 Ng6 20. Qb3 Qe7 21. Rc1 Nxf4 22. exf4 Bb4 23. Nb1 Ba6 24. a3 Bd6 25. Nc3 Bc4 26. Qd1 Qf7 27. h4 Ba6 28. Qa4 Bc8 29. Qb5 Bb7 30. Qa4 Bb8 31. Qc2 Kg7 32. Re1 Qd7 33. Qb3 Ba6 34. Qd1 Kh8 35. Qh5 Rg8 36. Qd1 1/2-1/2

[Event "Hamburg-ch Seniors 65+"]
[Site "Hamburg"]
[Date "2018.11.02"]
[Round "3"]
[White "Cassens, Erhard Otto"]
[Black "Gollasch, Theo Heinz"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1816"]
[BlackElo "2049"]
[PlyCount "100"]
[EventDate "2018.10.31"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 4. e3 Be7 5. Nbd2 b6 6. c3 0-0 7. Ne5 Nfd7 8. Bd3 Nxe5 9. dxe5 g6 10. Bh6 Re8 11. Nf3 Ba6 12. h4 Bxd3 13. Qxd3 Nd7 14. Bg5 c5 15. c4 Bxg5 16. hxg5 Qc7 17. cxd5 Nxe5 18. Nxe5 Qxe5 19. dxe6 Rxe6 20. 0-0-0 Qxg5 21. g3 Ree8 22. Qc4 Qf6 23. Qh4 Qxh4 24. Rxh4 Rad8 25. Rdh1 h5 26. g4 hxg4 27. Rxg4 Kg7 28. Rd1 f5 29. Rgg1 Kf6 30. Rxd8 Rxd8 31. Kc2 g5 32. Rh1 Rd7 33. Rh8 g4 34. Rf8+ Ke6 35. Re8+ Re7 36. Rf8 Rd7 37. Kc3 b5 38. Re8+ Kd5 39. a3 Rd6 40. Re7 Re6 41. Rxa7 Ke4 42. Rf7 Re5 43. Kd2 Kf3 44. Ke1 g3 45. fxg3 Rxe3+ 46. Kd2 Re5 47. Rg7 Re2+ 48. Kc3 Rg2 49. Rb7 Ke4 50. Rxb5 Rxg3+ 1/2-1/2

[Event "Hamburg-ch Seniors 65+"]
[Site "Hamburg"]
[Date "2018.11.01"]
[Round "2"]
[White "Emami, Madjid"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "A10"]
[WhiteElo "1977"]
[BlackElo "1816"]
[PlyCount "76"]
[EventDate "2018.10.31"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. Nf3 e6 2. c4 f5 3. g3 Nf6 4. Bg2 c6 5. 0-0 d5 6. d3 Be7 7. Nc3 0-0 8. e4 fxe4 9. dxe4 dxc4 10. Qe2 b5 11. e5 Nd5 12. Ne4 Na6 13. Nfg5 Qe8 14. h4 Nc5 15. h5 Nd3 16. Bd2 Nxe5 17. f4 Bxg5 18. fxg5 Nd3 19. Rxf8+ Qxf8 20. Rf1 Qe7 21. g6 h6 22. Rf7 Qd8 23. Qf1 Ne5 24. Ba5 Nb6 25. Bb4 Nbd7 26. Be7 Qb6+ 27. Kh1 Bb7 28. Rxg7+ Kxg7 29. Bf6+ Kg8 30. Bxe5 Nxe5 31. Qf6 Qc7 32. Qxe6+ Kh8 33. Nd6 Qg7 34. Nxb7 Rf8 35. Nd6 Qf6 36. g7+ Qxg7 37. Ne8 Qg5 38. g4 Nxg4 0-1

[Event "Hamburg-ch Seniors 65+"]
[Site "Hamburg"]
[Date "2018.10.31"]
[Round "1"]
[White "Cassens, Erhard Otto"]
[Black "Vogel, Manfred"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1816"]
[BlackElo "1487"]
[PlyCount "109"]
[EventDate "2018.10.31"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 c5 2. e3 cxd4 3. exd4 d5 4. c3 Nf6 5. Bd3 Nc6 6. Bf4 e6 7. Nd2 Be7 8. Bg3 0-0 9. f4 a6 10. h4 b5 11. a3 Na5 12. b4 Nc4 13. Qf3 Nxd2 14. Kxd2 Bb7 15. Ne2 Ne4+ 16. Bxe4 dxe4 17. Qe3 f5 18. Bf2 h5 19. Ng3 g6 20. Nf1 Bd5 21. Qg3 Kh7 22. Ne3 Rc8 23. Be1 Bc4 24. Nd1 Bf6 25. Ke3 Qd7 26. Kf2 Bxd4+ 27. Ne3 Bf6 28. Rd1 Bd3 29. Rc1 Rc7 30. Nd1 Rfc8 31. Qe3 Bd4 32. cxd4 Rxc1 33. Bd2 R1c2 34. Kg3 Rd8 35. Qe1 Qxd4 36. Be3 Qd6 37. Bc5 Qc7 38. Ne3 Re2 39. Qa1 Qg7 40. Qc1 e5 41. Bb6 exf4+ 42. Kxf4 Qh6+ 43. Kg3 f4+ 44. Kh2 Rg8 45. Nd5 Rxg2+ 46. Kxg2 f3+ 47. Kf2 Qxc1 48. Rxc1 Rg7 49. Nf6+ Kh6 50. Be3+ g5 51. hxg5+ Kg6 52. Rc6 Rf7 53. Nxe4+ Kg7 54. Nc5 Be2 55. Ne6+ 1-0

[Event "Pinneberg-ch"]
[Site "Pinneberg"]
[Date "2018.09.27"]
[Round "7"]
[White "Cassens, Erhard Otto"]
[Black "Dangelowski, Peter"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "1698"]
[BlackElo "1604"]
[PlyCount "69"]
[EventDate "2018.08.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 c5 3. e3 Nc6 4. b3 Nf6 5. Bb2 Bf5 6. Bb5 Bg4 7. 0-0 e6 8. h3 Bxf3 9. Qxf3 Bd6 10. d3 a6 11. Bxc6+ bxc6 12. e4 Be7 13. c4 0-0 14. Bxf6 Bxf6 15. e5 Be7 16. Nc3 f5 17. Na4 Kh8 18. Rac1 Rc8 19. Rc2 Rg8 20. cxd5 cxd5 21. Rfc1 Qa5 22. Qf2 d4 23. h4 Rc7 24. g3 h6 25. Qf3 Kh7 26. h5 Rf8 27. Qe2 Qb5 28. Rc4 Rd8 29. Qf3 Rd5 30. R1c2 Qe8 31. Nb6 Rd8 32. Ra4 Qb5 33. Nc4 Qc6 34. Qe2 Rb7 35. Na5 1-0

[Event "Pinneberg-ch"]
[Site "Pinneberg"]
[Date "2018.09.20"]
[Round "6"]
[White "Ihlenfeldt, Gerhard"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "1541"]
[BlackElo "1698"]
[PlyCount "58"]
[EventDate "2018.08.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 b6 3. d3 Bb7 4. Be2 c5 5. Bf4 Nc6 6. Nc3 d6 7. 0-0 Be7 8. Qd2 e5 9. Bg5 f6 10. Be3 Qd7 11. a4 Nb4 12. Nh4 d5 13. exd5 Bxd5 14. Bf3 Bxf3 15. Nxf3 Bd6 16. Ne4 Ne7 17. Nxd6+ Qxd6 18. Qe2 0-0 19. Rfd1 Rfd8 20. c3 Nxd3 21. Ne1 e4 22. Rd2 c4 23. Rad1 Qc6 24. f3 f5 25. Bg5 Re8 26. fxe4 fxe4 27. Bxe7 Rxe7 28. Nxd3 cxd3 29. Qh5 Rae8 0-1

[Event "Pinneberg-ch"]
[Site "Pinneberg"]
[Date "2018.09.13"]
[Round "5"]
[White "Cassens, Erhard Otto"]
[Black "Tornier, Siegfried"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1698"]
[BlackElo "1361"]
[PlyCount "55"]
[EventDate "2018.08.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. Bd3 b6 5. c3 Be7 6. Nd2 Bb7 7. Ngf3 0-0 8. Ne5 c5 9. 0-0 Ba6 10. Bxa6 Nxa6 11. Qa4 Nb8 12. dxc5 Bxc5 13. Rad1 Qe8 14. Qc2 Nh5 15. Bg3 Nxg3 16. hxg3 Bd6 17. Nd3 Nd7 18. e4 dxe4 19. Nxe4 Be7 20. a4 a5 21. f3 Nf6 22. Ne5 Rd8 23. Rxd8 Bxd8 24. Rd1 Nd5 25. c4 Nb4 26. Qd2 Qe7 27. Nd7 Re8 28. Nd6 1-0

[Event "Pinneberg-ch"]
[Site "Pinneberg"]
[Date "2018.08.30"]
[Round "3"]
[White "Cassens, Erhard Otto"]
[Black "Kuhn, Gerd"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1698"]
[BlackElo "2011"]
[PlyCount "82"]
[EventDate "2018.08.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 b6 3. e3 Bb7 4. Nd2 e6 5. h3 c5 6. c3 d5 7. Ngf3 Be7 8. Be2 0-0 9. Ne5 Ne4 10. Nxe4 dxe4 11. dxc5 Bxc5 12. Qc2 f6 13. Nc4 e5 14. Bh2 Qc7 15. Nd2 Qc6 16. b4 Be7 17. b5 Qc7 18. 0-0 Bd5 19. c4 Nd7 20. Rac1 Rac8 21. Qb1 Bf7 22. Nb3 Qb7 23. a4 Nc5 24. Nxc5 Rxc5 25. f3 exf3 26. Bxf3 Qc7 27. Bc6 Rxc4 28. Rxc4 Bxc4 29. Rc1 Bf7 30. Be4 Bc5 31. Bxh7+ Kh8 32. Kh1 Rd8 33. Bg1 Rd2 34. Bf5 Qb7 35. Qe4 Qxe4 36. Bxe4 g6 37. a5 f5 38. Bc6 e4 39. axb6 Bxb6 40. g4 Kg7 41. g5 Bb3 0-1

[Event "Pinneberg-ch"]
[Site "Pinneberg"]
[Date "2018.08.23"]
[Round "2"]
[White "Hadlich, Winfried"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1710"]
[BlackElo "1698"]
[PlyCount "56"]
[EventDate "2018.08.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 c6 4. Nd2 d5 5. Nxe4 dxe4 6. c3 Nd7 7. e3 Nf6 8. Bc4 Nd5 9. Bg3 e6 10. Ne2 Be7 11. Bb3 h5 12. h4 a5 13. a3 b5 14. Bc2 f5 15. b3 Ba6 16. Qd2 0-0 17. f3 exf3 18. gxf3 Bd6 19. e4 fxe4 20. Bxe4 Ra7 21. b4 Bxg3+ 22. Nxg3 Nf6 23. Bg6 Qd5 24. Qe2 Bc8 25. 0-0 Qd6 26. Qe5 Qxe5 27. dxe5 Nd5 28. Be4 Rf4 0-1

[Event "Pinneberg-ch"]
[Site "Pinneberg"]
[Date "2018.08.16"]
[Round "1"]
[White "Cassens, Erhard Otto"]
[Black "Kronenthal, Linda"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1698"]
[BlackElo "1333"]
[PlyCount "75"]
[EventDate "2018.08.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 Bf5 4. Nd2 e6 5. Be2 Be7 6. g4 Bg6 7. h4 h6 8. h5 Bh7 9. Bg3 Nc6 10. c3 Bd6 11. Bh4 Be7 12. Bg3 Bd6 13. f4 Qe7 14. Bh4 Qd7 15. b4 a6 16. Nh3 Be7 17. Nf2 0-0-0 18. b5 axb5 19. Bxb5 Qd6 20. Qa4 Kd7 21. Bxc6+ Qxc6 22. Qxc6+ bxc6 23. a4 Ra8 24. Ke2 Rhb8 25. Bxf6 Bxf6 26. e4 Ra5 27. e5 Be7 28. Ra2 c5 29. Rg1 cxd4 30. cxd4 Rb4 31. Nf3 Rbxa4 32. Rxa4 Rxa4 33. g5 hxg5 34. fxg5 Bf5 35. Nd3 Ra3 36. Nfe1 Ra4 37. Ke3 Ra3 38. Kd2 1/2-1/2

[Event "Pinneberg-ch"]
[Site "Pinneberg"]
[Date "2018.06.06"]
[Round "4"]
[White "Bremer, Wolfgang"]
[Black "Cassens, Erhard Otto"]
[Result "1-0"]
[ECO "E61"]
[WhiteElo "1410"]
[BlackElo "1698"]
[PlyCount "69"]
[EventDate "2018.08.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Bf4 d6 5. Nf3 0-0 6. h3 Nbd7 7. e3 Nh5 8. Bh2 f5 9. Be2 e6 10. Rc1 b6 11. Qb3 Kh8 12. 0-0 Bb7 13. Rfd1 f4 14. Na4 Ba6 15. Rd2 Bh6 16. e4 Bb7 17. c5 Bxe4 18. cxd6 c6 19. Qxe6 Bd5 20. Qe7 Re8 21. Qxd8 Raxd8 22. Nc3 Re6 23. Nxd5 cxd5 24. Rc7 a5 25. Rdc2 Rxd6 26. Rc8 Rxc8 27. Rxc8+ Kg7 28. Rc7 Kf8 29. h4 Ndf6 30. Ne5 Ke8 31. g4 Kd8 32. Rc2 Ne8 33. Nf7+ Ke7 34. Nxh6 Rf6 35. Ng8+ 1-0

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2018.05.27"]
[Round "9"]
[White "Chmielewski, Axel"]
[Black "Cassens, Erhard Otto"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "1828"]
[BlackElo "1874"]
[PlyCount "71"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 d5 3. c4 c6 4. g3 Nd7 5. Bg2 Bb4+ 6. Bd2 Bxd2+ 7. Qxd2 Ngf6 8. Nc3 0-0 9. b3 Re8 10. 0-0 Qa5 11. Qb2 dxc4 12. bxc4 Nb6 13. Nd2 Na4 14. Nxa4 Qxa4 15. e4 Rd8 16. e5 Ne8 17. Rfc1 Bd7 18. Rc3 Qa5 19. Nb3 Qb6 20. Rb1 Qc7 21. Qe2 b6 22. Qh5 g6 23. Qh6 Ng7 24. g4 Be8 25. Rh3 Nf5 26. Qxh7+ Kf8 27. gxf5 exf5 28. Qh8+ Ke7 29. Qf6+ Kd7 30. e6+ Kc8 31. Rh7 Rd6 32. Re1 Kb7 33. c5 Qd8 34. Qg7 bxc5 35. Nxc5+ Kb6 36. Rb1+ 1-0

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2018.05.26"]
[Round "8"]
[White "Cassens, Erhard Otto"]
[Black "Ristic, Sreten"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "1874"]
[BlackElo "1881"]
[PlyCount "165"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. c3 Bg4 4. Nbd2 e6 5. h3 Bh5 6. b3 Be7 7. e3 Nbd7 8. Bb2 0-0 9. Bd3 Re8 10. Qc2 a6 11. g4 Bg6 12. Bxg6 hxg6 13. Ne4 c5 14. Nxf6+ gxf6 15. dxc5 Nxc5 16. Nd2 d5 17. Rd1 Qc7 18. c4 Nd7 19. Qd3 Ne5 20. Bxe5 Qxe5 21. 0-0 dxc4 22. Nxc4 Qc7 23. Qd7 Rac8 24. Qxc7 Rxc7 25. Rd3 b5 26. Nd2 Rc2 27. a4 Ra2 28. axb5 axb5 29. Rc1 f5 30. Rc7 fxg4 31. hxg4 f5 32. gxf5 gxf5 33. Nf3 Kf7 34. Rdd7 Kf6 35. Rb7 b4 36. Kg2 Rg8+ 37. Kf1 Ra1+ 38. Ke2 Re8 39. Rd1 Ra3 40. Rd3 Rc8 41. Rdd7 Re8 42. Nd4 Ra6 43. Rdc7 Bf8 44. Nc6 e5 45. Nxb4 Bxb4 46. Rxb4 Ra2+ 47. Kf1 Ra1+ 48. Ke2 Kg5 49. Rc2 Rd8 50. Rd2 Rxd2+ 51. Kxd2 e4 52. Rd4 Kg4 53. Ke2 Rb1 54. f3+ Kg3 55. fxe4 fxe4 56. Rxe4 Rb2+ 57. Kd3 Rxb3+ 58. Kd4 Ra3 59. Re8 Kg4 60. Rg8+ Kf5 61. Rf8+ Ke6 62. Re8+ Kd6 63. Rd8+ Ke7 64. Rd5 Ke6 65. Rh5 Ra4+ 66. Kd3 Ra3+ 67. Ke4 Ra4+ 68. Kf3 Ra1 69. Kf4 Rf1+ 70. Ke4 Kf6 71. Rh6+ Kg5 72. Rh8 Kg6 73. Rg8+ Kf7 74. Rg5 Kf6 75. Rb5 Ke6 76. Rb6+ Ke7 77. Ke5 Kd7 78. e4 Rf2 79. Rb7+ Kc8 80. Rh7 Kd8 81. Ke6 Rf8 82. Rd7+ Ke8 83. Rb7 1-0

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2018.05.25"]
[Round "7"]
[White "Cassens, Erhard Otto"]
[Black "Ertelt, Alf"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "1874"]
[BlackElo "1757"]
[PlyCount "152"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. e3 g6 4. Nbd2 Bg7 5. e4 0-0 6. Bd3 Nbd7 7. 0-0 e5 8. h3 Qe8 9. d5 Nh5 10. Re1 Nc5 11. Bf1 Nf4 12. Nb3 Nxb3 13. axb3 f5 14. Bxf4 exf4 15. exf5 Qf7 16. fxg6 hxg6 17. Ra4 Bf6 18. Rxf4 Qg7 19. g4 Bd7 20. Nd4 Be5 21. Rxf8+ Qxf8 22. Nf3 Bf4 23. Qd3 Qh6 24. Re7 Rd8 25. Bg2 c6 26. Nh4 Bg5 27. Rxd7 Rxd7 28. dxc6 bxc6 29. Bxc6 Re7 30. Ng2 Bf6 31. f4 Qf8 32. Qxg6+ Rg7 33. Bd5+ Kh8 34. Qf5 Rh7 35. Kh2 Qe7 36. Qe6 Qxe6 37. Bxe6 Re7 38. f5 Be5+ 39. Kg1 Rb7 40. Kf2 Rb5 41. Ne3 Ra5 42. Ke2 Ra1 43. Nd1 Bf6 44. b4 Kg7 45. Bb3 Ra6 46. Kf3 Kh6 47. Ke4 Rb6 48. Ne3 Rb8 49. Kd5 Be5 50. h4 a5 51. g5+ Kh5 52. f6 axb4 53. c4 Kxh4 54. c5 Kxg5 55. f7 Bf4 56. Ng2 Be5 57. cxd6 Kf6 58. Kc6 Rf8 59. Ne3 Bxb2 60. Ng4+ Kg5 61. Nf2 Kg6 62. Nd3 Bc3 63. d7 Bf6 64. Nf4+ Kg7 65. Nh5+ Kg6 66. Nxf6 Kxf6 67. Kd6 Rd8 68. Be6 Rf8 69. Bd5 Rd8 70. Kc7 Ke7 71. Bb3 Rf8 72. Kc6 Rd8 73. Ba4 Rf8 74. Kc7 Rd8 75. Bb3 Rf8 76. Be6 Rd8 1/2-1/2

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2018.05.24"]
[Round "6"]
[White "Schulz, Hans Juergen"]
[Black "Cassens, Erhard Otto"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "1842"]
[BlackElo "1874"]
[PlyCount "94"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. Bd3 dxe4 5. Nxe4 Nxe4 6. Bxe4 c6 7. Nf3 Nd7 8. 0-0 Nf6 9. Bd2 Be7 10. c4 b6 11. Be3 Ng4 12. Bd2 Bb7 13. h3 Nf6 14. Bc3 0-0 15. Ne5 c5 16. dxc5 Bxc5 17. Re1 Qd6 18. Qc2 Rad8 19. Rad1 Qc7 20. Ng4 Nxg4 21. Bxh7+ Kh8 22. hxg4 Qf4 23. Rxd8 Rxd8 24. Be4 Bxe4 25. Rxe4 Rd1+ 26. Be1 Qd6 27. a3 a5 28. Kf1 Qd8 29. b4 axb4 30. Ke2 Rd4 31. axb4 Rxe4+ 32. Qxe4 Be7 33. f4 Qd7 34. Qc2 Qc6 35. Kf1 Qd6 36. Qd2 Qc7 37. Qd4 Bf6 38. Qe4 Qd7 39. g5 Be7 40. Qa8+ Kh7 41. Qe4+ Kg8 42. Qc2 Qd4 43. g3 Qd6 44. Kg2 Qc6+ 45. Kh2 Qf3 46. Bc3 Qf1 47. Bd4 e5 1-0

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2018.05.23"]
[Round "5"]
[White "Lohse, Marc"]
[Black "Cassens, Erhard Otto"]
[Result "1/2-1/2"]
[ECO "C00"]
[WhiteElo "1979"]
[BlackElo "1874"]
[PlyCount "140"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e6 2. d3 b6 3. g3 Bb7 4. Bg2 c5 5. Bf4 Nc6 6. Nc3 e5 7. Be3 Nge7 8. Nge2 Nd4 9. Nd5 Nxd5 10. exd5 Nf5 11. Bd2 Bd6 12. 0-0 0-0 13. Nc3 a6 14. Ne4 Bb8 15. Qg4 g6 16. Bg5 f6 17. Bd2 Kg7 18. c4 d6 19. f4 Bc8 20. Qd1 exf4 21. Rxf4 Nd4 22. Rh4 Nf5 23. Rf4 Ra7 24. h4 Raf7 25. Kh2 h6 26. Bh3 Nd4 27. Bc3 Bxh3 28. Kxh3 Qd7+ 29. Kh2 g5 30. Rf2 f5 31. Nd2 Qe7 32. Qg1 Qe3 33. Re1 Qxd3 34. Rf3 Qc2 35. Bxd4+ cxd4 36. Qxd4+ Kh7 37. hxg5 hxg5 38. Rf2 Qa4 39. Re6 Qd1 40. Rf1 Qg4 41. Qd3 Rf6 42. Qf3 Qxf3 43. Nxf3 Kg6 44. Rfe1 f4 45. gxf4 gxf4 46. Rg1+ Kh6 47. Nd4 Kh5 48. Rxf6 Rxf6 49. Rg8 Bc7 50. Ne6 f3 51. Kg1 Rf7 52. Rc8 Kg4 53. Rxc7 f2+ 54. Kf1 Rf5 55. Rg7+ Kh3 56. Ng5+ Kg3 57. Ne4+ Kf3 58. Nxf2 Ke3 59. Ke1 Kd4 60. Rg4+ Ke3 61. Rg3+ Kd4 62. b3 b5 63. Rd3+ Ke5 64. cxb5 axb5 65. Ke2 Rf8 66. Ng4+ Ke4 67. Nf2+ Rxf2+ 68. Kxf2 Kxd3 69. a4 bxa4 70. bxa4 Kc4 1/2-1/2

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2018.05.22"]
[Round "4"]
[White "Cassens, Erhard Otto"]
[Black "Krotofil, Kurt"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1874"]
[BlackElo "1896"]
[PlyCount "162"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c3 e6 4. Bf4 Bd6 5. Bg5 Nbd7 6. Nbd2 c6 7. e4 dxe4 8. Nxe4 Be7 9. Nxf6+ Nxf6 10. Bd3 0-0 11. Qe2 Nd5 12. Bd2 Bd6 13. g3 f6 14. 0-0-0 Qc7 15. Qe4 f5 16. Qh4 Rf6 17. Qh3 h6 18. Rde1 f4 19. Ne5 f3 20. Qg4 c5 21. Qe4 Rf5 22. Nxf3 Bd7 23. dxc5 Bxc5 24. Nh4 Nf6 25. Qc4 b5 26. Qb3 Rd5 27. Be4 Nxe4 28. Rxe4 Bxf2 29. Bf4 Qc6 30. Nf3 Rf8 31. Re2 Bd4 32. Kb1 Bf6 33. Rhe1 Qc4 34. Ne5 Qxb3 35. axb3 Bxe5 36. Bxe5 Rd3 37. Kc2 Rdf3 38. Bd4 a6 39. Re5 Kh7 40. Rc5 Rc8 41. b4 g5 42. Ra1 Ra8 43. Rc7 Rf7 44. Ba7 Kg6 45. Rxa6 Kh5 46. Ra5 e5 47. Kd2 Rd8 48. Ke3 Kg4 49. Ra6 Rh8 50. Rd6 Rhh7 51. Rc5 Kh3 52. Rd2 Bg4 53. Bb8 Bf3 54. Bxe5 Bg2 55. Rf2 Rb7 56. Rf6 Kxh2 57. Rc8 g4 58. Bf4 h5 59. Rc5 Kg1 60. Rff5 Rbe7+ 61. Rfe5 Bf3 62. Kd2 Rd7+ 63. Kc1 Rd1+ 64. Kc2 Rhd7 65. b3 Rf1 66. c4 Bd1+ 67. Kc3 Rf3+ 68. Re3 Rxf4 69. gxf4 h4 70. Rce5 h3 71. Rg5 h2 72. c5 Kg2 73. Rh5 g3 74. c6 Rc7 75. Rh6 Bf3 76. Re1 Kf2 77. Ra1 Bxc6 78. Ra2+ Ke3 79. Re6+ Kxf4 80. Rf6+ Kg5 81. Rf1 Bg2+ 0-1

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2018.05.21"]
[Round "3"]
[White "Cassens, Erhard Otto"]
[Black "Tesch, David"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "1874"]
[BlackElo "1857"]
[PlyCount "20"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 e6 2. Bf4 f5 3. e3 Nf6 4. Nc3 c6 5. Nf3 d5 6. Ne5 Bd6 7. Be2 0-0 8. h4 Qe7 9. h5 Nbd7 10. f3 b5 1-0

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2018.05.20"]
[Round "2"]
[White "Samson, Valentin"]
[Black "Cassens, Erhard Otto"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1423"]
[BlackElo "1874"]
[PlyCount "47"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e6 2. d3 b6 3. Nd2 Bb7 4. Ngf3 c5 5. g3 Be7 6. Bg2 Nc6 7. 0-0 Qc7 8. Re1 g5 9. Nc4 g4 10. Bf4 d6 11. e5 d5 12. Nd6+ Bxd6 13. exd6 Qd7 14. Nh4 0-0-0 15. Qxg4 f5 16. Qe2 e5 17. Bh3 Rf8 18. Bxe5 Nxe5 19. Qxe5 Nh6 20. Qe6 Ng4 21. Nxf5 Qxe6 22. Rxe6 Rxf5 23. Bxg4 Rff8 24. Re8# 1-0

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2018.05.19"]
[Round "1"]
[White "Cassens, Erhard Otto"]
[Black "Tscherepanov, Leon"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1874"]
[BlackElo "1761"]
[PlyCount "70"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 e6 2. Bf4 d5 3. e3 c5 4. c3 Nc6 5. Nd2 Nf6 6. Bd3 Bd7 7. Ngf3 Rc8 8. 0-0 h6 9. Ne5 Be7 10. Nxd7 Qxd7 11. dxc5 Bxc5 12. Bg3 Bd6 13. f4 Qc7 14. Qe2 0-0 15. Bh4 Be7 16. Bg3 Bd6 17. Bh4 Be7 18. Bxf6 Bxf6 19. Rad1 Rfe8 20. Bb1 e5 21. Qd3 Ne7 22. fxe5 Bxe5 23. Nf3 g6 24. Qb5 a6 25. Qb3 b5 26. a4 Bg7 27. axb5 axb5 28. Nd4 Rb8 29. Bd3 Qb6 30. Rf3 Rec8 31. Rdf1 Rf8 32. Qb4 Nc6 33. Nxc6 Qxc6 34. Bc2 Qc4 35. Rf4 Qe2 1/2-1/2

[Event "Hamburg-ch Seniors 23rd"]
[Site "Hamburg"]
[Date "2016.11.06"]
[Round "5"]
[White "Ziehm, Holger"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "B15"]
[WhiteElo "1676"]
[BlackElo "1829"]
[PlyCount "104"]
[EventDate "2016.11.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 c6 3. Nf3 d5 4. Nc3 b6 5. e5 Ne7 6. Bg5 Qc7 7. Be2 h6 8. Bxe7 Bxe7 9. 0-0 g5 10. Ne1 f5 11. exf6 Bxf6 12. Bh5+ Kd7 13. Bg4 Ba6 14. Nd3 Bxd3 15. Qxd3 Qf4 16. Qe2 Re8 17. Rae1 Qd6 18. Qd3 Re7 19. Re2 Qf4 20. h3 Kc7 21. g3 Qxd4 22. Qxd4 Bxd4 23. Rxe6 Rxe6 24. Bxe6 Bxc3 25. bxc3 Na6 26. f4 Nc5 27. Bg4 Rf8 28. f5 Ne4 29. Rf3 Kd6 30. Bh5 Kc5 31. g4 Kc4 32. Bg6 Rf6 33. Re3 Nxc3 34. Re6 Ne4 35. Be8 c5 36. Ba4 Kd4 37. Kg2 a6 38. Bc6 b5 39. Kf3 b4 40. Ke2 c4 41. Kf3 Rxe6 42. fxe6 Nf6 43. e7 a5 44. e8Q Nxe8 45. Bxe8 Kc3 46. Bg6 d4 47. Ke4 a4 48. Kd5 d3 49. cxd3 cxd3 50. Bxd3 Kxd3 51. Kc5 b3 52. axb3 axb3 0-1

[Event "Hamburg-ch Seniors 23rd"]
[Site "Hamburg"]
[Date "2016.11.05"]
[Round "4"]
[White "Cassens, Erhard Otto"]
[Black "Ditmas, Hugh"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1829"]
[BlackElo "2006"]
[PlyCount "126"]
[EventDate "2016.11.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 c5 3. d5 Qb6 4. b3 Qb4+ 5. Bd2 Qd4 6. Na3 Qxd5 7. c4 Qc6 8. Nf3 d6 9. g3 g6 10. Bg2 Qc7 11. Nb5 Qd8 12. Nh4 Bg7 13. e4 0-0 14. 0-0 a6 15. Nc3 Nc6 16. a3 Rb8 17. Rb1 b5 18. Nd5 Nxd5 19. exd5 Nd4 20. Re1 Re8 21. Be3 Nf5 22. Nf3 Nxe3 23. fxe3 Qa5 24. e4 Bg4 25. h3 Bxf3 26. Qxf3 Qxa3 27. Rf1 Rf8 28. Rfc1 bxc4 29. Rxc4 Rb4 30. Rxb4 Qxb4 31. Bf1 a5 32. Rc1 Qd2 33. Rd1 Bd4+ 34. Kh1 Qe3 35. Qxe3 Bxe3 36. Kg2 Bd4 37. g4 Kg7 38. Bd3 h6 39. Rd2 Kf6 40. Ra2 Bc3 41. Kf3 Ke5 42. Ke3 e6 43. Bc4 exd5 44. exd5 f5 45. Kd3 Bb4 46. Re2+ Kf4 47. gxf5 gxf5 48. Re6 Rd8 49. Rxh6 Kf3 50. h4 f4 51. h5 Kf2 52. Rf6 f3 53. Ke4 Re8+ 54. Re6 Rh8 55. Rxd6 Rxh5 56. Rf6 Rh4+ 57. Kd3 Rd4+ 58. Kc2 a4 59. Rh6 a3 60. Rh1 Rd2+ 61. Kc1 a2 62. Rh2+ Ke3 63. Rxd2 a1Q+ 0-1

[Event "Hamburg-ch Seniors 23rd"]
[Site "Hamburg"]
[Date "2016.11.04"]
[Round "3"]
[White "Cassens, Erhard Otto"]
[Black "Ptitsyn, Vadim"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1829"]
[BlackElo "1666"]
[PlyCount "45"]
[EventDate "2016.11.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d6 3. Nd2 g6 4. e3 Bg7 5. c3 0-0 6. Be2 Nbd7 7. g4 e5 8. Bg3 Re8 9. h4 exd4 10. cxd4 Nb6 11. h5 g5 12. h6 Bh8 13. Nh3 Ne4 14. Nxe4 Rxe4 15. Qd3 Re6 16. Ng1 d5 17. 0-0-0 c6 18. Qc2 Qf8 19. Rh5 Rxh6 20. Rxg5+ Rg6 21. Rh5 Bxg4 22. Bxg4 Rxg4 23. Qxh7# 1-0

[Event "Hamburg-ch Seniors 23rd"]
[Site "Hamburg"]
[Date "2016.11.03"]
[Round "2"]
[White "Hawranke, Dietrich"]
[Black "Cassens, Erhard Otto"]
[Result "1-0"]
[ECO "A90"]
[WhiteElo "2121"]
[BlackElo "1829"]
[PlyCount "47"]
[EventDate "2016.11.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 c6 5. Nf3 d5 6. 0-0 Bd6 7. b3 Qe7 8. Bb2 0-0 9. Ne5 a5 10. Qc2 Na6 11. a3 Bd7 12. Nd2 Nh5 13. Ndf3 Rac8 14. Bc3 b6 15. Qd3 Nc7 16. e3 Be8 17. Bb2 g5 18. c5 bxc5 19. dxc5 Bxc5 20. Rfc1 g4 21. Nd4 Bxd4 22. Qxd4 Nb5 23. Nxc6 Qf6 24. Qxf6 1-0

[Event "Hamburg-ch Seniors 23rd"]
[Site "Hamburg"]
[Date "2016.11.02"]
[Round "1"]
[White "Cassens, Erhard Otto"]
[Black "Lipka, Werner"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1829"]
[BlackElo "1262"]
[PlyCount "71"]
[EventDate "2016.11.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 g6 2. e4 Bg7 3. c3 d6 4. Nf3 Nf6 5. Bd3 0-0 6. h3 a6 7. Bf4 Nbd7 8. Nbd2 c6 9. g4 b5 10. Qe2 a5 11. Bg3 Bb7 12. 0-0 Re8 13. a4 b4 14. c4 Kh8 15. Ng5 Rf8 16. f4 c5 17. e5 Ng8 18. d5 h6 19. Nxf7+ Rxf7 20. Bxg6 Rf8 21. Bd3 Re8 22. Qe4 Ngf6 23. exf6 Nxf6 24. Qg6 e6 25. g5 Qe7 26. Rae1 Rg8 27. Rxe6 Qc7 28. gxf6 Bf8 29. Qe4 Qf7 30. Kh2 Bc8 31. f5 h5 32. Bxd6 Qh7 33. Bxf8 Rg4 34. Bg7+ Rxg7 35. fxg7+ Qxg7 36. Re8+ 1-0

[Event "Pinneberg-ch"]
[Site "Pinneberg"]
[Date "2016.09.15"]
[Round "3"]
[White "Cassens, Erhard Otto"]
[Black "Buschhaus, Ralf"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1664"]
[BlackElo "1403"]
[PlyCount "99"]
[EventDate "2016.09.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c3 d5 3. Bf4 e6 4. e3 Bd6 5. Bg5 0-0 6. Nd2 c6 7. Bd3 Nbd7 8. e4 e5 9. exd5 exd4 10. dxc6 dxc3 11. cxd7 cxd2+ 12. Qxd2 Qe7+ 13. Ne2 Bb4 14. dxc8Q Bxd2+ 15. Bxd2 Raxc8 16. a3 Rfe8 17. Be3 Ng4 18. Bxa7 Rc2 19. 0-0 Rxe2 20. h3 Nf6 21. Bxe2 Qxe2 22. b4 h6 23. a4 Qc4 24. b5 Ra8 25. Rfc1 Qe6 26. b6 Rc8 27. Re1 Qc6 28. a5 Nd5 29. g3 f6 30. Rad1 Kf7 31. Rb1 Nc3 32. Rb2 Nb5 33. Rbe2 Re8 34. Rxe8 Qxe8 35. Rxe8 Kxe8 36. a6 Nd6 37. Bb8 Nc8 38. Bc7 Nxb6 39. axb7 Nd7 40. b8Q+ Nxb8 41. Bxb8 Ke7 42. Kg2 Ke6 43. Kf3 f5 44. h4 Kf6 45. Ba7 h5 46. Kf4 Kg6 47. Be3 Kf6 48. Bb6 Kg6 49. Bd8 Kh6 50. Kxf5 1-0

[Event "Pinneberg-ch"]
[Site "Pinneberg"]
[Date "2016.09.01"]
[Round "1"]
[White "Haefeker, Jan Erik"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "A10"]
[WhiteElo "1055"]
[BlackElo "1664"]
[PlyCount "82"]
[EventDate "2016.09.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. c4 e6 2. g3 f5 3. Bg2 Nf6 4. Nc3 c6 5. a3 d5 6. cxd5 exd5 7. b4 Bd6 8. Nf3 0-0 9. e3 a5 10. b5 Ne4 11. a4 Bb4 12. Na2 c5 13. 0-0 Qf6 14. Rb1 Nd7 15. Bb2 Qe7 16. d3 Nef6 17. Nxb4 axb4 18. Ra1 b6 19. Qb3 Bb7 20. Rfe1 Kh8 21. Nh4 g6 22. Bxd5 Bxd5 23. Qxd5 Rfd8 24. Qb3 Ne5 25. Rad1 Kg7 26. e4 fxe4 27. dxe4 Rxd1 28. Qxd1 c4 29. Bxe5 Qxe5 30. Nf3 Qe7 31. Qd4 Qc5 32. e5 Qxd4 33. Nxd4 Ne8 34. Ra1 b3 35. Kf1 Rd8 36. Ne6+ Kg8 37. Nxd8 c3 38. Kg2 c2 39. Rc1 b2 40. Rxc2 b1Q 41. Re2 Qd1 0-1

[Event "Hamburg-ch cand"]
[Site "Hamburg"]
[Date "2016.05.22"]
[Round "9"]
[White "Cassens, Erhard Otto"]
[Black "Weis, Hans Juergen"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1851"]
[BlackElo "1570"]
[PlyCount "85"]
[EventDate "2016.05.14"]
[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 e6 3. e3 Bd6 4. Bd3 Nf6 5. Bg5 Nbd7 6. f4 Be7 7. Nd2 c5 8. c3 c4 9. Bc2 b5 10. a3 a5 11. Nh3 Ng8 12. 0-0 h6 13. Bxe7 Nxe7 14. e4 0-0 15. f5 exf5 16. exf5 Nf6 17. g4 g5 18. Qf3 Kg7 19. Rae1 Ra7 20. Nf2 Rd7 21. Kg2 Qc7 22. Rh1 Rdd8 23. Re3 h5 24. Qe2 Neg8 25. gxh5 Rfe8 26. Nf3 Rxe3 27. Qxe3 Qf4 28. Qxf4 gxf4 29. Kh3 Kf8 30. Kh4 Re8 31. Ne5 Bd7 32. Nfg4 Re7 33. Kg5 Nxg4 34. Kxg4 Be8 35. Kxf4 Nf6 36. Kg5 Ng8 37. f6 Re6 38. Rf1 Nxf6 39. Rxf6 Kg7 40. h6+ Kg8 41. h7+ Kg7 42. Rxe6 fxe6 43. h4 1-0

[Event "Hamburg-ch cand"]
[Site "Hamburg"]
[Date "2016.05.21"]
[Round "8"]
[White "Cassens, Erhard Otto"]
[Black "Begier, Ralf"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1851"]
[BlackElo "1802"]
[PlyCount "64"]
[EventDate "2016.05.14"]
[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. Bf4 g6 3. Nd2 Bg7 4. c3 d6 5. e4 b6 6. Bd3 c5 7. Ngf3 cxd4 8. cxd4 0-0 9. h3 Nc6 10. Bb5 Bd7 11. Qa4 Rc8 12. 0-0 e5 13. Bg5 exd4 14. Rac1 Ne5 15. Nxd4 a6 16. Bxd7 Nexd7 17. Nc6 Qe8 18. Qxa6 Ra8 19. Qc4 Nc5 20. Nb4 Nfxe4 21. Nxe4 Qxe4 22. Qxe4 Nxe4 23. Be3 Bxb2 24. Rc2 Be5 25. f4 Bg7 26. Bxb6 Rfb8 27. Nd5 Rxb6 28. Nxb6 Bd4+ 29. Kh2 Bxb6 30. f5 g5 31. Re2 d5 32. Rb1 Nc3 0-1

[Event "Hamburg-ch cand"]
[Site "Hamburg"]
[Date "2016.05.20"]
[Round "7"]
[White "Ristic, Sreten"]
[Black "Cassens, Erhard Otto"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "1912"]
[BlackElo "1851"]
[PlyCount "49"]
[EventDate "2016.05.14"]
[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 e6 2. e3 d5 3. b3 Be7 4. Bb2 Bf6 5. d4 c6 6. a3 b6 7. Nd2 Nd7 8. Ngf3 Ne7 9. Qc2 Ng6 10. Be2 Nh4 11. Nxh4 Bxh4 12. g4 Bb7 13. 0-0 Ba6 14. f4 dxc4 15. bxc4 Qc7 16. Bd3 h6 17. Nf3 Be7 18. h4 g5 19. d5 0-0-0 20. dxe6 Nc5 21. Be5 Bd6 22. Bxh8 Nxd3 23. Qxd3 Be5 24. Bxe5 Rxd3 25. Bxc7 1-0

[Event "Hamburg-ch cand"]
[Site "Hamburg"]
[Date "2016.05.19"]
[Round "6"]
[White "Cassens, Erhard Otto"]
[Black "Christensen, Andreas"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1851"]
[BlackElo "1774"]
[PlyCount "149"]
[EventDate "2016.05.14"]
[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. Bf4 c5 3. d5 b5 4. e3 Bb7 5. d6 exd6 6. Bxd6 Qa5+ 7. c3 Nc6 8. Nf3 Qb6 9. Bxf8 Rxf8 10. Na3 Ba6 11. Bd3 g5 12. Bf5 g4 13. Nh4 Ne5 14. Qe2 Rg8 15. 0-0-0 d5 16. f4 Nc6 17. e4 Ne7 18. e5 Nd7 19. Bxg4 Nf8 20. Rhe1 Bc8 21. Bf3 b4 22. Nb1 Ne6 23. g3 Bb7 24. cxb4 cxb4 25. b3 Rc8+ 26. Kb2 Nd4 27. Qd3 Rc2+ 28. Ka1 Qa5 29. a4 Nxf3 30. Nxf3 Qc5 31. Rd2 Rxd2 32. Qxd2 Rg6 33. Rc1 Qb6 34. Qd4 Qxd4+ 35. Nxd4 Kd7 36. Nd2 h6 37. N2f3 Rg8 38. Kb2 Rg6 39. Rc5 Rg8 40. Nc2 Nc6 41. Nfd4 Nxd4 42. Nxd4 h5 43. Nf5 f6 44. exf6 Rf8 45. Ng7 h4 46. Nh5 Kd6 47. Rc2 hxg3 48. hxg3 Bc8 49. Rh2 Rh8 50. Rh4 Be6 51. Ng7 Rxh4 52. gxh4 Bg8 53. h5 Bh7 54. f5 Kd7 55. Kc2 a5 56. Kd3 Kd6 57. Kd4 Bg8 58. h6 Bh7 59. Ke3 Kd7 60. Kf4 Kd6 61. Nh5 d4 62. Ng3 d3 63. Ke3 d2 64. Kxd2 Kd7 65. Ke3 Ke8 66. Kf4 Kf7 67. Ke5 Bg8 68. Ne4 Ke8 69. Nd6+ Kf8 70. f7 Bh7 71. Nb7 Kxf7 72. Nxa5 Kf8 73. Nc4 Bg8 74. Kd4 Bf7 75. a5 1-0

[Event "Hamburg-ch cand"]
[Site "Hamburg"]
[Date "2016.05.18"]
[Round "5"]
[White "Haack, Stefan"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1863"]
[BlackElo "1851"]
[PlyCount "120"]
[EventDate "2016.05.14"]
[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 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 Nge7 7. g4 h5 8. gxh5 Rxh5 9. dxc5 Qxc5 10. Be3 Qa5 11. Ng5 Rh4 12. Nf3 Rh8 13. b4 Qc7 14. Bd4 Ng6 15. Bb5 Bd7 16. Bxc6 Bxc6 17. 0-0 Be7 18. a4 a6 19. Re1 b5 20. axb5 Bxb5 21. Na3 Bd7 22. Nc2 Nf4 23. Qd2 Nh3+ 24. Kh1 Rh5 25. Qe3 Ng5 26. Nxg5 Bxg5 27. f4 Be7 28. Qe2 Rf5 29. Qg4 g6 30. Ne3 Rh5 31. Rg1 Bb5 32. Rg3 Bd3 33. Rh3 Be4+ 34. Kg1 Rxh3 35. Qxh3 Qb7 36. Qf1 Kf8 37. Ra5 Kg7 38. Ra1 Qc8 39. Ra2 Bd8 40. Qh3 Be7 41. Qf1 Bh4 42. Ng4 Qc4 43. Qxc4 dxc4 44. Ne3 Bd3 45. b5 a5 46. b6 g5 47. fxg5 Bxg5 48. Rg2 Kh6 49. Bc5 Rb8 50. Ra2 Bd8 51. Rb2 Rb7 52. Rb5 Kg5 53. Rxa5 Rxb6 54. Ra4 Rb1+ 55. Kf2 Rb2+ 56. Kg1 Rb1+ 57. Kf2 Kf4 58. Nxc4 Bh4+ 59. Kg2 Bf1+ 60. Kg1 Bh3# 0-1

[Event "Hamburg-ch cand"]
[Site "Hamburg"]
[Date "2016.05.17"]
[Round "4"]
[White "Cassens, Erhard Otto"]
[Black "Topuz, Soner Marcel"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1851"]
[BlackElo "1940"]
[PlyCount "90"]
[EventDate "2016.05.14"]
[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. Bf4 d5 3. e3 Bf5 4. c3 c6 5. Be2 Nbd7 6. Nd2 e6 7. g4 Bg6 8. h4 h6 9. h5 Bh7 10. Bg3 Be7 11. Nh3 Ne4 12. Nxe4 Bxe4 13. f3 Bh7 14. Nf2 Qb6 15. Qd2 f6 16. Bd3 Bxd3 17. Qxd3 0-0-0 18. b4 Qb5 19. Qc2 e5 20. Nd3 exd4 21. exd4 Rde8 22. Kf2 Qb6 23. a4 Qd8 24. b5 Nb6 25. bxc6 bxc6 26. a5 Nc4 27. Nb2 Bd6 28. Qf5+ Qd7 29. Qxd7+ Kxd7 30. Nxc4 dxc4 31. Rab1 Rb8 32. Bxd6 Kxd6 33. a6 Rb3 34. Rxb3 cxb3 35. Rb1 Rb8 36. Ke3 c5 37. Kd3 cxd4 38. Kxd4 b2 39. f4 Rb5 40. c4 Rb3 41. f5 Kc6 42. c5 Rb4+ 43. Kc3 Kxc5 44. Kc2 Kb6 45. Kc3 Rb5 0-1

[Event "Hamburg-ch cand"]
[Site "Hamburg"]
[Date "2016.05.16"]
[Round "3"]
[White "Schmuck, Martin"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1931"]
[BlackElo "1851"]
[PlyCount "98"]
[EventDate "2016.05.14"]
[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 e6 2. Nc3 d5 3. exd5 exd5 4. d4 c6 5. Nf3 Bd6 6. Bd3 Bg4 7. h3 Bh5 8. g4 Bg6 9. Bg5 Qc7 10. Qe2+ Ne7 11. 0-0-0 Bxd3 12. Rxd3 f6 13. Bd2 Na6 14. Qe6 Qd7 15. Re1 Qxe6 16. Rxe6 Kd7 17. Rde3 Nc7 18. Rxd6+ Kxd6 19. Na4 Na6 20. Nc5 Nxc5 21. dxc5+ Kd7 22. Nd4 Rae8 23. Rb3 Kc8 24. Bf4 Ng6 25. Bd6 Re1+ 26. Kd2 Rhe8 27. f4 R1e4 28. Nf5 Re2+ 29. Kd3 Rh2 30. h4 Rh3+ 31. Kd2 Rxb3 32. axb3 Re4 33. Ng3 Rb4 34. Kc3 a5 35. Nh5 Kd7 36. g5 fxg5 37. hxg5 Re4 38. f5 Nh8 39. f6 g6 40. f7 Nxf7 41. Nf6+ Ke6 42. Nxe4 dxe4 43. Kd4 Kf5 44. Bc7 Nxg5 45. Bxa5 Ne6+ 46. Ke3 Nxc5 47. Be1 g5 48. Kf2 h5 49. Kg2 Ne6 0-1

[Event "Hamburg-ch cand"]
[Site "Hamburg"]
[Date "2016.05.15"]
[Round "2"]
[White "Cassens, Erhard Otto"]
[Black "Lochmann, Viktor"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1851"]
[BlackElo "1723"]
[PlyCount "88"]
[EventDate "2016.05.14"]
[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. Bf4 d6 3. e3 b6 4. Be2 Bb7 5. Bf3 Qc8 6. Nd2 g6 7. c3 c5 8. Bg5 Nbd7 9. e4 Bg7 10. d5 0-0 11. h4 Ne5 12. Be2 Ba6 13. c4 Qd7 14. Bxf6 Bxf6 15. f4 Nxc4 16. Bxc4 b5 17. Be2 Bxb2 18. Rb1 Bc3 19. Rb3 Ba5 20. Ra3 Qc7 21. h5 Rab8 22. Rah3 Bc8 23. hxg6 Bxh3 24. gxh7+ Kh8 25. Rxh3 c4 26. Qa1+ f6 27. Kd1 c3 28. Nb3 c2+ 29. Kc1 Bb4 30. a3 Be1 31. Nf3 Bc3 32. Qa2 Rfe8 33. Nh4 a5 34. Ng6+ Kg7 35. f5 a4 36. h8Q+ Rxh8 37. Qxc2 Rxh3 38. gxh3 axb3 39. Qxb3 Rc8 40. Bd3 b4 41. Kd1 Bd4 42. Bc2 bxa3 43. Nf4 Qxc2+ 44. Qxc2 Rxc2 0-1

[Event "Hamburg-ch cand"]
[Site "Hamburg"]
[Date "2016.05.14"]
[Round "1"]
[White "Hildebrandt, Alexander"]
[Black "Cassens, Erhard Otto"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1674"]
[BlackElo "1851"]
[PlyCount "55"]
[EventDate "2016.05.14"]
[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 e6 2. d4 d5 3. exd5 exd5 4. Nc3 c6 5. Nf3 Bd6 6. h3 Nf6 7. Bd3 h6 8. 0-0 Be6 9. Ne2 Qc7 10. Be3 g5 11. Nd2 Nbd7 12. c4 0-0-0 13. f4 dxc4 14. Nxc4 g4 15. Nxd6+ Qxd6 16. f5 Bd5 17. Bf4 Qb4 18. h4 Rde8 19. Qd2 Qxd2 20. Bxd2 Ne4 21. Bf4 Ndf6 22. Be5 Rhg8 23. Nf4 Rd8 24. Rfe1 g3 25. Nxd5 cxd5 26. Rac1+ Kd7 27. Rc7+ Ke8 28. Bxf6 1-0

[Event "Hamburg HSK Christmas op 1st"]
[Site "Hamburg"]
[Date "2015.12.29"]
[Round "6"]
[White "Cassens, Erhard Otto"]
[Black "Atri, Jamshid"]
[Result "0-1"]
[ECO "D05"]
[WhiteElo "1879"]
[BlackElo "2067"]
[PlyCount "135"]
[EventDate "2015.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Be2 c5 5. c3 Nc6 6. 0-0 Bd6 7. dxc5 Bxc5 8. Nd4 e5 9. Nxc6 bxc6 10. Nd2 Bd6 11. Qa4 Bd7 12. Rd1 Qe7 13. Nf1 0-0 14. Bd2 a5 15. Ng3 Rfb8 16. Qc2 g6 17. b3 h5 18. f3 h4 19. Nf1 c5 20. Be1 g5 21. c4 d4 22. Bd3 Kg7 23. Bf5 Bc6 24. Qd2 Ng8 25. Bf2 a4 26. exd4 exd4 27. Re1 Qf6 28. Qd3 Nh6 29. Be4 Bxe4 30. Qxe4 axb3 31. axb3 Rxa1 32. Rxa1 Rxb3 33. Nd2 Rb2 34. Qd3 Bxh2+ 35. Kf1 Bg3 36. Ne4 Qe5 37. Re1 Bxf2 38. Nxf2 Qg3 39. Re2 Rxe2 40. Qxe2 Nf5 41. Ne4 Qe5 42. Kf2 Ne3 43. Kg1 h3 44. gxh3 f5 45. Nd2 Qg3+ 46. Kh1 Qxh3+ 47. Kg1 Kf6 48. Nb3 Qg3+ 49. Kh1 Qe5 50. Qa2 g4 51. Qa8 Qg3 52. fxg4 Qh3+ 53. Kg1 Qxg4+ 54. Kf2 Qf4+ 55. Kg1 Qf1+ 56. Kh2 Qxc4 57. Qh8+ Kg6 58. Qe8+ Kg7 59. Qe5+ Kh7 60. Qe7+ Kh6 61. Qf6+ Kh5 62. Qh8+ Kg6 63. Qe8+ Kf6 64. Qh8+ Kg6 65. Qe8+ Qf7 66. Qc6+ Qf6 67. Qe8+ Kh6 68. Qa8 0-1

[Event "Hamburg HSK Christmas op 1st"]
[Site "Hamburg"]
[Date "2015.12.29"]
[Round "7"]
[White "Hourigan, Gerrit"]
[Black "Cassens, Erhard Otto"]
[Result "1-0"]
[ECO "A84"]
[WhiteElo "1621"]
[BlackElo "1879"]
[PlyCount "113"]
[EventDate "2015.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. Nc3 Nf6 4. Nf3 d5 5. Bf4 c6 6. e3 Be7 7. Bd3 0-0 8. 0-0 dxc4 9. Bxc4 Nd5 10. Bg3 Nd7 11. Qd2 N7f6 12. Bd3 Nh5 13. Be5 Bd7 14. e4 Nxc3 15. bxc3 fxe4 16. Bxe4 Nf6 17. Bc2 Ng4 18. Qe3 Rf5 19. Bg3 Be8 20. h3 Nh6 21. Qe2 Ra5 22. Bb3 Kh8 23. Bxe6 Bh5 24. Qe4 Bg6 25. Qe2 Bf6 26. Ne5 Bxe5 27. Bxe5 Qe7 28. Bb3 Re8 29. Rfe1 c5 30. Bc2 Bxc2 31. Qxc2 Qe6 32. Rad1 Qf7 33. Re2 Kg8 34. Rde1 Nf5 35. Qd3 cxd4 36. cxd4 Rd5 37. Qc4 Qd7 38. Re4 a5 39. Qb3 Qc6 40. g4 a4 41. Qd3 Nh4 42. Bg3 Rxe4 43. Qxe4 Ng6 44. f4 Qd7 45. Bf2 b5 46. f5 Nf8 47. Rc1 Rd6 48. Kf1 Qf7 49. Bg3 Rh6 50. d5 Rxh3 51. Kg2 Rh6 52. Rc7 Qf6 53. Be5 Qg5 54. Rxg7+ Qxg7 55. Bxg7 Kxg7 56. Qe7+ Kg8 57. Qg5+ 1-0

[Event "Hamburg HSK Christmas op 1st"]
[Site "Hamburg"]
[Date "2015.12.28"]
[Round "4"]
[White "Cassens, Erhard Otto"]
[Black "Von Rosen, Jakob"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1879"]
[BlackElo "1161"]
[PlyCount "77"]
[EventDate "2015.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. Nd2 Bd6 5. Bg5 0-0 6. Bd3 Bd7 7. c3 a5 8. f4 c5 9. Qc2 h6 10. Bh4 Nc6 11. Nh3 c4 12. Be2 Be7 13. Bxf6 Bxf6 14. e4 Be7 15. 0-0 f5 16. exd5 exd5 17. Bf3 Bc8 18. Rfe1 b5 19. a4 b4 20. Nxc4 Bb7 21. Ne3 g6 22. Nxd5 Re8 23. Qb3 Kg7 24. Nxe7 Rxe7 25. d5 Qg8 26. c4 Rxe1+ 27. Rxe1 Nd4 28. Qe3 Nxf3+ 29. gxf3 Qf7 30. Nf2 Kf8 31. Qc5+ Kg8 32. Nd3 Qf8 33. Qb6 Qg7 34. Re6 Kh7 35. Ne5 Ra6 36. Qd4 Rxe6 37. dxe6 Bc8 38. Qd6 Qf6 39. Qc7+ 1-0

[Event "Hamburg HSK Christmas op 1st"]
[Site "Hamburg"]
[Date "2015.12.28"]
[Round "3"]
[White "Raedisch, Peter"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "1657"]
[BlackElo "1879"]
[PlyCount "68"]
[EventDate "2015.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 b6 3. Bc4 Bb7 4. d3 Nc6 5. a3 Be7 6. Be3 Nf6 7. h3 d5 8. exd5 exd5 9. Ba2 0-0 10. 0-0 h6 11. Nh2 Bd6 12. Ng4 Ne5 13. Nxe5 Bxe5 14. d4 Bd6 15. Qf3 Ne4 16. Nd2 Ng5 17. Qh5 Qf6 18. c3 c6 19. Bb1 Rae8 20. Bd3 Bb8 21. Bxg5 Qxg5 22. Qxg5 hxg5 23. Nf3 f6 24. Rae1 Kf7 25. Nh2 Bc8 26. g4 Rxe1 27. Rxe1 Rh8 28. Re3 Bf4 29. Rf3 Bc1 30. b4 Bxa3 31. Kg2 Bb2 32. Bb1 Re8 33. Kf1 a5 34. Rd3 Ba6 0-1

[Event "Hamburg HSK Christmas op 1st"]
[Site "Hamburg"]
[Date "2015.12.28"]
[Round "5"]
[White "Schulz, Hans Juergen"]
[Black "Cassens, Erhard Otto"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1930"]
[BlackElo "1879"]
[PlyCount "61"]
[EventDate "2015.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. e5 Ne7 4. d4 c5 5. c3 cxd4 6. cxd4 Nbc6 7. Nc3 Qb6 8. Bd3 Bd7 9. Na4 Qc7 10. Bd2 Ng6 11. Rc1 Rc8 12. 0-0 Be7 13. b4 Qb8 14. Qb3 Nh4 15. Nxh4 Bxh4 16. Qb2 0-0 17. b5 Nd8 18. Bb4 Rxc1 19. Rxc1 Re8 20. Bd6 Qa8 21. Rc7 a6 22. Rxd7 axb5 23. Bxb5 Nc6 24. g3 Bg5 25. Nc5 Qa5 26. Rxb7 Qe1+ 27. Kg2 Bc1 28. Qa1 Nb4 29. Bxe8 h5 30. Bxf7+ Kh8 31. Rb8+ 1-0

[Event "Hamburg HSK Christmas op 1st"]
[Site "Hamburg"]
[Date "2015.12.27"]
[Round "2"]
[White "Cassens, Erhard Otto"]
[Black "Bente, Bjoern"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1879"]
[BlackElo "2249"]
[PlyCount "102"]
[EventDate "2015.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. dxc5 Nc6 5. c3 e6 6. b4 a5 7. b5 Nb8 8. Bd6 Bxd6 9. cxd6 Qxd6 10. a4 0-0 11. e3 Nbd7 12. Nbd2 Nc5 13. g3 Rd8 14. Qc2 e5 15. Bg2 e4 16. Nd4 Nd3+ 17. Ke2 Ng4 18. f3 exf3+ 19. Bxf3 Nde5 20. h3 Nf6 21. Kf2 Re8 22. Rae1 Nxf3 23. N4xf3 Bd7 24. Kg2 Rac8 25. Nd4 Qc7 26. e4 dxe4 27. Nxe4 Nxe4 28. Rxe4 Rxe4 29. Qxe4 Qxc3 30. Re1 h6 31. Nf3 Qc2+ 32. Qxc2 Rxc2+ 33. Kg1 Kf8 34. g4 Rc3 35. Kf2 Be6 36. Nd4 Ke7 37. Nf5+ Kf8 38. Nd6 b6 39. Re3 Rxe3 40. Kxe3 Ke7 41. Ne4 Bb3 42. Nc3 Ke6 43. Ke4 g6 44. h4 f5+ 45. gxf5+ gxf5+ 46. Kd4 Kd6 47. Ne2 Bxa4 48. Kc4 Ke5 49. Nd4 Ke4 50. Nc6 f4 51. Nxa5 Bxb5+ 0-1

[Event "Hamburg HSK Christmas op 1st"]
[Site "Hamburg"]
[Date "2015.12.27"]
[Round "1"]
[White "Gloyer, Fabian"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "A85"]
[WhiteElo "1335"]
[BlackElo "1879"]
[PlyCount "28"]
[EventDate "2015.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 e6 2. d4 f5 3. Nc3 Nf6 4. Nf3 d5 5. Bg5 c6 6. a3 Bd6 7. e3 0-0 8. g3 Qb6 9. b4 Ne4 10. Ne2 Bxb4+ 11. axb4 Qxb4+ 12. Nc3 Qxc3+ 13. Ke2 Qb2+ 14. Ke1 Qxf2# 0-1

[Event "Hamburg-ch Seniors 22nd"]
[Site "Hamburg"]
[Date "2015.11.05"]
[Round "9"]
[White "Krotofil, Kurt"]
[Black "Cassens, Erhard Otto"]
[Result "1/2-1/2"]
[ECO "A85"]
[WhiteElo "1974"]
[BlackElo "1870"]
[PlyCount "89"]
[EventDate "2015.10.28"]
[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. c4 d5 3. Nc3 c6 4. e3 Bd6 5. Nf3 f5 6. Bd3 Nf6 7. 0-0 0-0 8. a3 Nbd7 9. cxd5 cxd5 10. Bd2 Ne4 11. Rc1 Ndf6 12. Nb5 Nxd2 13. Qxd2 Bb8 14. Qc2 Bd7 15. Nc7 Bxc7 16. Qxc7 Bc6 17. Qxd8 Rfxd8 18. Ne5 Rd6 19. Nxc6 bxc6 20. Rc2 Rb8 21. b4 Nd7 22. f4 Kf7 23. Rfc1 Rb6 24. Kf2 g6 25. Ke2 Ke7 26. Kd2 Nb8 27. Rc5 Rd7 28. Kc3 Rdb7 29. Rb1 Nd7 30. Ra5 Kd6 31. Rc1 Nb8 32. Kd2 Nd7 33. Bc2 Rb5 34. Ba4 R5b6 35. h4 Nf6 36. Ke2 Nd7 37. Kf3 h5 38. g3 Rc7 39. Bd1 Rcb7 40. Be2 Rc7 41. Ra4 Nb8 42. Ra5 Nd7 43. Kf2 Rcb7 44. Ra6 Nb8 45. Rxb6 1/2-1/2

[Event "Hamburg-ch Seniors 22nd"]
[Site "Hamburg"]
[Date "2015.11.04"]
[Round "8"]
[White "Cassens, Erhard Otto"]
[Black "Keuneke, Hanno"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1870"]
[BlackElo "1771"]
[PlyCount "93"]
[EventDate "2015.10.28"]
[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. Bf4 g6 3. Nd2 Bg7 4. c3 d6 5. e4 0-0 6. Be2 Re8 7. Bg3 e5 8. d5 c6 9. c4 Qa5 10. Kf1 cxd5 11. cxd5 Nbd7 12. h4 Nc5 13. Nc4 Qd8 14. f3 Nh5 15. Bf2 b5 16. Ne3 a6 17. Nc2 f5 18. exf5 Bxf5 19. Ne3 Bc8 20. b4 Na4 21. Rc1 e4 22. fxe4 Rxe4 23. Bxh5 gxh5 24. Nf3 Bh6 25. Ng5 Bxg5 26. hxg5 Bg4 27. Nxg4 hxg4 28. Qc2 Qe7 29. Qc7 Rf8 30. Qxe7 Rxe7 31. Kg1 Rf5 32. Rc8+ Rf8 33. Rxf8+ Kxf8 34. Rh6 Nc3 35. Rxd6 Nxa2 36. Bc5 Ke8 37. Rxa6 Re2 38. Ra8+ Kf7 39. Ra6 g3 40. Rf6+ Kg8 41. Kf1 Rd2 42. d6 Nc3 43. Re6 Kf7 44. Re1 Kg6 45. Rc1 Na2 46. Ke1 Rxg2 47. d7 1-0

[Event "Hamburg-ch Seniors 22nd"]
[Site "Hamburg"]
[Date "2015.11.03"]
[Round "7"]
[White "Raedisch, Peter"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1659"]
[BlackElo "1870"]
[PlyCount "92"]
[EventDate "2015.10.28"]
[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 e6 2. d4 d5 3. e5 c5 4. Nf3 Nc6 5. c3 Bd7 6. Be2 Qb6 7. 0-0 Be7 8. h3 f6 9. Re1 0-0-0 10. a3 cxd4 11. cxd4 fxe5 12. dxe5 Bc5 13. Rf1 Qc7 14. Bf4 Rf8 15. Bg3 Nh6 16. Nc3 Nf5 17. Bh2 Ncd4 18. Nxd4 Bxd4 19. Nb5 Bxb5 20. Bxb5 Qb6 21. Qc2+ Kb8 22. a4 Rc8 23. Qd2 Ne3 24. Rfc1 a6 25. Rxc8+ Rxc8 26. Bd3 Nc4 27. Bxc4 Rxc4 28. Rb1 Rxa4 29. b4 Bc5 30. Qc2 Rxb4 31. Rxb4 Qxb4 32. Qd1 Qd4 33. Qe1 Qe4 34. Qxe4 dxe4 35. Kf1 Kc7 36. Ke2 Kc6 37. f4 b5 38. Kd2 Kd5 39. Bg3 b4 40. Be1 Kc4 41. Kc2 a5 42. g4 a4 43. f5 b3+ 44. Kb1 a3 45. fxe6 a2+ 46. Kb2 Bd4+ 0-1

[Event "Hamburg-ch Seniors 22nd"]
[Site "Hamburg"]
[Date "2015.11.01"]
[Round "6"]
[White "Cassens, Erhard Otto"]
[Black "Werner, Joern"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1870"]
[BlackElo "1823"]
[PlyCount "90"]
[EventDate "2015.10.28"]
[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. Nd2 Nf6 3. e3 e6 4. Be2 Nc6 5. b3 e5 6. Bb2 exd4 7. exd4 Bd6 8. Ngf3 Ne7 9. Ne5 c6 10. 0-0 Qc7 11. f4 Bf5 12. Bf3 0-0 13. Re1 Rfe8 14. g4 Be4 15. c4 Ng6 16. c5 Bf8 17. f5 Nf4 18. Bxe4 Nxe4 19. Nxe4 dxe4 20. Rxe4 Nh3+ 21. Kg2 Ng5 22. Re1 f6 23. h4 fxe5 24. hxg5 exd4 25. Qxd4 Red8 26. Qc4+ Kh8 27. Be5 Rd2+ 28. Kg3 Qd7 29. Re3 Qd5 30. Qxd5 Rxd5 31. b4 a5 32. a3 axb4 33. f6 gxf6 34. Bxf6+ Kg8 35. axb4 Rxa1 36. Bxa1 Rxg5 37. Re8 Rd5 38. Rb8 Rd7 39. Kh4 Kf7 40. Kh5 Rd5+ 41. g5 Be7 42. Rxb7 Rxg5+ 43. Kh6 Rg1 44. Kh5 Rxa1 45. b5 Ra4 0-1

[Event "Hamburg-ch Seniors 22nd"]
[Site "Hamburg"]
[Date "2015.11.01"]
[Round "5"]
[White "Duemmke, Juergen"]
[Black "Cassens, Erhard Otto"]
[Result "1-0"]
[ECO "B58"]
[WhiteElo "1972"]
[BlackElo "1870"]
[PlyCount "110"]
[EventDate "2015.10.28"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d6 5. Be3 Bd7 6. Be2 Nf6 7. Nc3 Nxd4 8. Bxd4 Bc6 9. Qd3 e5 10. Be3 Be7 11. 0-0 0-0 12. Rfd1 Qd7 13. a4 Ng4 14. Bc1 f5 15. f3 fxe4 16. Nxe4 Bxe4 17. Qxe4 Nf6 18. Bc4+ Kh8 19. Qe2 Qc7 20. Be3 Rac8 21. Bb3 a6 22. c3 Nd7 23. Be6 Rcd8 24. a5 Nc5 25. Bd5 Nd7 26. Ra4 Rc8 27. Rb4 Nc5 28. Rb6 Rb8 29. Qc4 Qc8 30. Qb4 Qd7 31. Bxc5 dxc5 32. Qe4 Bd8 33. Bb3 Qc7 34. Bc2 g6 35. Rdd6 Qf7 36. Qxe5+ Qg7 37. Qxc5 Bxb6 38. Qxb6 Qe7 39. Be4 Qe5 40. Re6 Qg7 41. h3 Rbd8 42. Rd6 Rxd6 43. Qxd6 Qf7 44. Bxb7 Qf4 45. Qxf4 Rxf4 46. Bxa6 Kg7 47. Bb7 Ra4 48. b4 Kf6 49. a6 Ke5 50. b5 Kf4 51. Kh2 h5 52. b6 g5 53. a7 g4 54. hxg4 hxg4 55. fxg4 Kxg4 1-0

[Event "Hamburg-ch Seniors 22nd"]
[Site "Hamburg"]
[Date "2015.10.31"]
[Round "4"]
[White "Cassens, Erhard Otto"]
[Black "Albrecht, Norbert"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1870"]
[BlackElo "1535"]
[PlyCount "91"]
[EventDate "2015.10.28"]
[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. Nd2 g6 3. e4 d6 4. c3 Bg7 5. Be2 0-0 6. h4 e5 7. h5 Nc6 8. d5 Ne7 9. hxg6 fxg6 10. g4 c6 11. g5 Ne8 12. c4 cxd5 13. cxd5 Qb6 14. Rh2 Bd7 15. Nc4 Qc7 16. Qb3 b5 17. Ne3 Rf4 18. f3 Qb6 19. Bd2 Rc8 20. Rc1 Rxc1+ 21. Bxc1 Nc7 22. Bd2 Na6 23. Qa3 Nc5 24. Ba5 Qb8 25. Ng2 Rf8 26. Bd2 Rc8 27. Ne3 Na4 28. Bd1 Qb6 29. Ne2 a5 30. Bxa4 bxa4 31. Nc3 Rc4 32. Rg2 Rb4 33. Ncd1 Rd4 34. Qc3 Rb4 35. a3 Rb5 36. Nc4 Qa6 37. Nxa5 Nxd5 38. exd5 e4 39. Qc7 exf3 40. Rf2 Bg4 41. Qd8+ Kf7 42. Nc6 Rb7 43. Qxd6 Rd7 44. Ne5+ Bxe5 45. Qxa6 Bg3 46. Qf6+ 1-0

[Event "Hamburg-ch Seniors 22nd"]
[Site "Hamburg"]
[Date "2015.10.30"]
[Round "3"]
[White "Schulz, Hans Juergen"]
[Black "Cassens, Erhard Otto"]
[Result "1/2-1/2"]
[ECO "C02"]
[WhiteElo "1945"]
[BlackElo "1870"]
[PlyCount "43"]
[EventDate "2015.10.28"]
[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 e6 2. Nf3 d5 3. e5 Ne7 4. d4 c5 5. dxc5 Qa5+ 6. Bd2 Qxc5 7. Bd3 Ng6 8. 0-0 Qc7 9. Re1 Nc6 10. Qe2 Bd7 11. a3 Be7 12. b4 Rc8 13. Nc3 0-0 14. Rac1 Qb6 15. Nb5 Qd8 16. c4 dxc4 17. Bxc4 a6 18. Nbd4 Nxd4 19. Nxd4 Bg5 20. g3 Bxd2 21. Qxd2 b5 22. Bf1 1/2-1/2

[Event "Pinneberg op Seniors 16th"]
[Site "Pinneberg"]
[Date "2015.08.13"]
[Round "7"]
[White "Cassens, Erhard Otto"]
[Black "Van Riesen, Klaus"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1664"]
[BlackElo "1997"]
[PlyCount "74"]
[EventDate "2015.07.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nd2 g6 3. e4 d6 4. Be2 Bg7 5. c3 c6 6. Ngf3 Qc7 7. 0-0 0-0 8. Qb3 a5 9. a4 Bg4 10. h3 Be6 11. Qc2 h6 12. Nh2 d5 13. e5 Bf5 14. Bd3 Bxd3 15. Qxd3 Nh7 16. Ndf3 e6 17. Ng4 h5 18. Ngh2 c5 19. Be3 Nc6 20. g4 cxd4 21. cxd4 hxg4 22. Nxg4 Nb4 23. Qb5 Qc6 24. Qe2 Qc2 25. Qb5 Qe4 26. Qe2 Rfc8 27. Rac1 Nd3 28. Rxc8+ Rxc8 29. Rd1 Nf4 30. Qd2 Nxh3+ 31. Kh2 Qxg4 32. Ng1 N7g5 33. Bxg5 Nxg5 34. f4 Ne4 35. Qe2 Qxf4+ 36. Kg2 Qg3+ 37. Kf1 Qb3 0-1

[Event "Pinneberg op Seniors 16th"]
[Site "Pinneberg"]
[Date "2015.08.06"]
[Round "6"]
[White "Salinger, Bernhard"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "1131"]
[BlackElo "1664"]
[PlyCount "126"]
[EventDate "2015.07.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Nc6 3. e3 Bg4 4. Bb5 Qd6 5. Bb2 a6 6. Bxc6+ Qxc6 7. 0-0 h5 8. c4 dxc4 9. bxc4 Rh6 10. d3 0-0-0 11. Nbd2 f6 12. Rb1 Rxd3 13. Qc2 Rd8 14. Nd4 Qd7 15. Qb3 e5 16. Bc3 c6 17. Nc2 Bc5 18. Nb4 Ba7 19. h3 Bf5 20. Rbd1 Qc7 21. Rfe1 Rg6 22. c5 Bxh3 23. g3 a5 24. Nc2 Bg4 25. Rb1 Qd7 26. Bxa5 Be6 27. Nc4 Bxc4 28. Qxc4 Qd5 29. Qb4 Rd7 30. Rf1 Rg4 31. Qe1 h4 32. Rd1 Qf7 33. Rxd7 Qxd7 34. Qe2 hxg3 35. Kg2 gxf2+ 36. Kxf2 Qf5+ 37. Ke1 Qe4 38. Bb6 Bxb6 39. cxb6 Qc4 40. Qxc4 Rxc4 41. Kd2 Ra4 42. Rh1 Kd7 43. Rh7 Ne7 44. Rxg7 Rxa2 45. Kd3 Rb2 46. e4 Rxb6 47. Ne3 Ke6 48. Nc4 Rb4 49. Kc3 c5 50. Rh7 b5 51. Nd2 Ra4 52. Nb3 Rc4+ 53. Kd3 Nc6 54. Rh8 Nb4+ 55. Kd2 Rc2+ 56. Kd1 Rc3 57. Re8+ Kf7 58. Kd2 Rxb3 59. Rc8 c4 60. Rb8 Nd3 61. Rb7+ Kg6 62. Kc2 Nc5 63. Rb6 Nxe4 0-1

[Event "Pinneberg op Seniors 16th"]
[Site "Pinneberg"]
[Date "2015.07.31"]
[Round "5"]
[White "Hadlich, Winfried"]
[Black "Cassens, Erhard Otto"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "1728"]
[BlackElo "1664"]
[PlyCount "79"]
[EventDate "2015.07.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 e6 2. c4 d5 3. Nc3 c6 4. e3 Bd6 5. Nf3 Nd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 a5 9. Ne4 Be7 10. 0-0 Bb7 11. Bd2 a4 12. Bc2 f5 13. Ng3 h5 14. e4 h4 15. Ne2 g6 16. Nf4 Kf7 17. exf5 exf5 18. Qe2 Bf6 19. Qe6+ Kg7 20. Nxg6 Nf8 21. Nxf8 Qxf8 22. Qxf5 Ne7 23. Qg4+ Kf7 24. Ne5+ Bxe5 25. dxe5 h3 26. e6+ Ke8 27. Bg6+ Kd8 28. Bg5 Kc7 29. Bxe7 Qxe7 30. Rad1 Bc8 31. Qf4+ Kb7 32. Qf7 Qxf7 33. Bxf7 hxg2 34. Kxg2 Kb6 35. Rfe1 Bb7 36. e7 c5+ 37. f3 Bc6 38. Rd6 Kc7 39. Rxc6+ Kxc6 40. e8Q+ 1-0

[Event "Pinneberg op Seniors 16th"]
[Site "Pinneberg"]
[Date "2015.07.23"]
[Round "4"]
[White "Cassens, Erhard Otto"]
[Black "Busse, Gerd"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "1664"]
[BlackElo "1589"]
[PlyCount "125"]
[EventDate "2015.07.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. 0-0 a6 6. Bxc6 dxc6 7. d4 exd4 8. cxd4 Be7 9. Nc3 0-0 10. h3 Re8 11. Qb3 Rf8 12. Be3 Rb8 13. Rad1 Be6 14. Qc2 h6 15. Nh2 Bc4 16. Rfe1 Nh5 17. b3 Be6 18. Qe2 Bb4 19. Qxh5 Bxc3 20. Re2 Qf6 21. Qc5 Qg6 22. Qxc3 Bxh3 23. f3 Be6 24. Bf4 Rbc8 25. Kf2 Rfd8 26. Red2 Qf6 27. Qe3 Qh4+ 28. Bg3 Qe7 29. f4 f6 30. Nf3 Bg4 31. Nh4 Bxd1 32. Rxd1 Qb4 33. f5 Rd7 34. Nf3 Rcd8 35. e5 fxe5 36. Bxe5 Re8 37. Rc1 Rde7 38. Qc3 Qb5 39. Qc4+ Qxc4 40. Rxc4 Rf7 41. g4 h5 42. Kg3 hxg4 43. Kxg4 Ref8 44. Nh4 Kh7 45. Rc2 Rd8 46. Rh2 Rfd7 47. Ng6+ Kg8 48. Kg5 Kf7 49. Rh7 Kg8 50. Rh4 Kf7 51. Nf4 Kg8 52. Ne6 Re8 53. Kg6 Ree7 54. Rh7 c5 55. dxc5 Rd2 56. Rxg7+ Rxg7+ 57. Bxg7 Rxa2 58. f6 Rg2+ 59. Ng5 Rxg5+ 60. Kxg5 Kf7 61. Kf5 a5 62. Ke5 b5 63. Kd4 1-0

[Event "Pinneberg op Seniors 16th"]
[Site "Pinneberg"]
[Date "2015.07.16"]
[Round "3"]
[White "Grimm, Uwe"]
[Black "Cassens, Erhard Otto"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "2026"]
[BlackElo "1664"]
[PlyCount "89"]
[EventDate "2015.07.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 g6 3. e3 Nf6 4. b3 Bg7 5. Bb2 c5 6. Be2 Nc6 7. 0-0 0-0 8. Qe1 b6 9. Bd1 Ne8 10. d4 Nd6 11. Nbd2 Ba6 12. Be2 Bb7 13. c3 cxd4 14. exd4 e6 15. Bd3 Bf6 16. Ba3 Re8 17. Ne5 Bg7 18. Qe2 Rc8 19. Rac1 f5 20. Bxd6 Qxd6 21. Ndf3 Nxe5 22. fxe5 Qd8 23. Qd2 Re7 24. h4 Qf8 25. g4 Rec7 26. Rc2 Qe7 27. g5 Qa3 28. Rfc1 Bf8 29. Ne1 Qe7 30. Ng2 Qg7 31. Nf4 Qf7 32. b4 Be7 33. Qg2 Kg7 34. a3 Rh8 35. Qg3 Rcc8 36. c4 Bd8 37. c5 a6 38. Rh2 Qe7 39. h5 Rc6 40. hxg6 Qxg5 41. Rxh7+ Kg8 42. Kf2 Rc7 43. Rch1 Qxg3+ 44. Kxg3 Rhxh7 45. gxh7+ 1-0

[Event "Pinneberg op Seniors 16th"]
[Site "Pinneberg"]
[Date "2015.07.09"]
[Round "2"]
[White "Cassens, Erhard Otto"]
[Black "Riedel, Siegfried"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "1664"]
[BlackElo "1495"]
[PlyCount "49"]
[EventDate "2015.07.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. Be3 Nd7 5. Qd2 h6 6. 0-0-0 e6 7. f4 Ne7 8. Nf3 a6 9. h4 h5 10. Kb1 b5 11. Bd3 Bb7 12. Ng5 c6 13. Rhf1 Nb6 14. f5 gxf5 15. exf5 Bc8 16. f6 Bh6 17. fxe7 Qc7 18. Nxf7 Bxe3 19. Qxe3 Rg8 20. Ng5 Qxe7 21. Rde1 Rf8 22. Bg6+ Kd8 23. Rxf8+ Qxf8 24. Nxe6+ Bxe6 25. Qxe6 1-0

[Event "Pinneberg op Seniors 16th"]
[Site "Pinneberg"]
[Date "2015.07.02"]
[Round "1"]
[White "Engels, Jan"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "A85"]
[WhiteElo "1353"]
[BlackElo "1664"]
[PlyCount "100"]
[EventDate "2015.07.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. Nf3 e6 2. c4 f5 3. d4 c6 4. Nc3 Nf6 5. Bg5 d5 6. cxd5 exd5 7. e3 Bd6 8. Bd3 0-0 9. 0-0 Qe8 10. Qc2 Ne4 11. Bf4 Rf6 12. Bxd6 Rxd6 13. Ne5 Rh6 14. Be2 Nd7 15. f4 Qe7 16. Nf3 Ndf6 17. Ng5 Nxg5 18. fxg5 Qxe3+ 19. Kh1 Qxg5 20. Bf3 f4 21. Qf2 Bf5 22. Rae1 Bd3 23. Re5 Qg3 24. Qxg3 fxg3 25. Rfe1 Rxh2+ 26. Kg1 Rf8 27. Ne2 Bxe2 28. R1xe2 Rh4 29. Re7 Rxd4 30. Rc2 Re8 31. Rxe8+ Nxe8 32. Kf1 Kf7 33. Ke2 Nd6 34. Rc3 Nf5 35. Rd3 g6 36. Rb3 b5 37. a3 h5 38. Rd3 Rc4 39. Rd2 Ke6 40. Kd3 Kd6 41. b3 Rd4+ 42. Kc3 Rxd2 43. Kxd2 Nd4 44. Bd1 Ke5 45. Ke3 h4 46. b4 Nf5+ 47. Kf3 d4 48. Bc2 g5 49. Bd3 Ne3 50. Be4 g4+ 0-1

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2015.05.31"]
[Round "9"]
[White "Buchholz, Robert"]
[Black "Cassens, Erhard Otto"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "1986"]
[BlackElo "1830"]
[PlyCount "40"]
[EventDate "2015.05.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 e6 2. c4 d5 3. Nc3 c6 4. e4 dxc4 5. Bxc4 b5 6. Be2 Nf6 7. Bg5 h6 8. Bxf6 gxf6 9. Nf3 Bb7 10. 0-0 Nd7 11. d5 Qb6 12. a4 a6 13. dxe6 fxe6 14. a5 Qc7 15. Nd4 Qd6 16. Bh5+ Kd8 17. Bg4 e5 18. Ne6+ Ke8 19. Qe2 Nc5 20. Rad1 Qe7 1-0

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2015.05.30"]
[Round "8"]
[White "Glodowski, Marek"]
[Black "Cassens, Erhard Otto"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "1973"]
[BlackElo "1830"]
[PlyCount "111"]
[EventDate "2015.05.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Bd3 dxe4 4. Bxe4 Nf6 5. Bf3 c6 6. Ne2 Qc7 7. Nd2 Nbd7 8. Nc4 Nd5 9. 0-0 b5 10. Ne3 Bd6 11. g3 0-0 12. c3 Bb7 13. b3 f5 14. Bd2 f4 15. Nxd5 exd5 16. Nxf4 Rf6 17. Bg2 Nf8 18. Nd3 Bc8 19. f4 Be6 20. b4 Nd7 21. Ne5 Nb6 22. Qe2 Nc4 23. Rae1 Nxd2 24. Qxd2 a5 25. a3 axb4 26. axb4 Bd7 27. Ra1 Rff8 28. Qe2 Bf5 29. Ra2 Rxa2 30. Qxa2 g5 31. Qe2 gxf4 32. Rxf4 Bg6 33. Nxg6 hxg6 34. Qe6+ Kg7 35. Rxf8 Bxf8 36. Bh3 Qb6 37. Qd7+ Kh6 38. Qe8 Bg7 39. Qe3+ Kh7 40. Be6 Qd8 41. Qf4 Bf6 42. Qg4 Bg5 43. Qf3 Qe7 44. Qe2 Qa7 45. h4 Qa1+ 46. Kg2 Bh6 47. Qf3 Qe1 48. Bd7 Be3 49. Be6 Bh6 50. Bd7 Be3 51. Qf7+ Kh6 52. Qf8+ Kh7 53. Bxc6 Qg1+ 54. Kh3 Qh1+ 55. Kg4 Qe4+ 56. Kh3 1/2-1/2

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2015.05.29"]
[Round "7"]
[White "Cassens, Erhard Otto"]
[Black "Szudra, Heinz Werner"]
[Result "0-1"]
[ECO "D05"]
[WhiteElo "1830"]
[BlackElo "1960"]
[PlyCount "62"]
[EventDate "2015.05.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. e3 d5 4. c3 e6 5. Nbd2 Nc6 6. Be2 Bd6 7. 0-0 0-0 8. dxc5 Bxc5 9. b4 Bd6 10. Nb3 e5 11. a4 Qc7 12. h3 e4 13. Ne1 Ne5 14. Qc2 Be6 15. Nd4 a6 16. Bb2 Nc4 17. Bxc4 Qxc4 18. Qd2 Rac8 19. Nec2 Bb8 20. Ne2 Qc7 21. g3 Bxh3 22. Rfd1 Bg4 23. Ncd4 Qd7 24. Rdc1 Ba7 25. Ba3 Bxd4 26. cxd4 Bf3 27. Kh2 Qg4 28. Nf4 g5 29. Rxc8 Rxc8 30. Nh3 Qh5 31. Rc1 Ng4+ 0-1

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2015.05.28"]
[Round "6"]
[White "Groeppel, Peter"]
[Black "Cassens, Erhard Otto"]
[Result "1/2-1/2"]
[ECO "A90"]
[WhiteElo "1964"]
[BlackElo "1830"]
[PlyCount "87"]
[EventDate "2015.05.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 e6 2. c4 d5 3. Nf3 c6 4. Nc3 f5 5. g3 Nf6 6. Bg2 Bd6 7. 0-0 0-0 8. c5 Bc7 9. Bf4 Bd7 10. Bxc7 Qxc7 11. Ne5 Be8 12. b4 Nbd7 13. f4 Ne4 14. Bxe4 fxe4 15. Nxd7 Qxd7 16. a4 a6 17. Qd2 Bh5 18. Rfb1 Qf7 19. b5 axb5 20. axb5 Rxa1 21. Rxa1 Qf6 22. e3 Be8 23. Ra7 Rf7 24. Ra8 Rf8 25. Rb8 Qe7 26. b6 Bh5 27. Rxf8+ Qxf8 28. Qa2 g5 29. Qa7 gxf4 30. exf4 Qc8 31. Kf2 Bg4 32. Na2 Kf7 33. Nc1 Bd1 34. Ke1 Bc2 35. Kd2 Bb1 36. Qa1 Bd3 37. Ke3 Ba6 38. Qb2 Qg8 39. Qg2 Qg4 40. Ne2 Bxe2 41. Qxe2 Qh3 42. Qf2 Kg6 43. Ke2 Kf5 44. Ke3 1/2-1/2

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2015.05.27"]
[Round "5"]
[White "Cassens, Erhard Otto"]
[Black "Raedisch, Peter"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1830"]
[BlackElo "1706"]
[PlyCount "157"]
[EventDate "2015.05.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 a6 3. e3 Nf6 4. Be2 c6 5. Nd2 e6 6. Ngf3 Nh5 7. Bg5 Nf6 8. Ne5 Be7 9. 0-0 h6 10. Bh4 g5 11. Bg3 h5 12. f3 Nbd7 13. c3 h4 14. Be1 Nxe5 15. dxe5 Nd7 16. f4 gxf4 17. exf4 Qb6+ 18. Kh1 Qxb2 19. Nb3 Qa3 20. Rf3 Qa4 21. Bf2 c5 22. Qd2 b6 23. Rh3 Bb7 24. Rf1 0-0-0 25. Bd1 Qc6 26. Bf3 Qc7 27. Qe1 Nf8 28. Bxh4 Re8 29. Bxe7 Rxh3 30. Bd6 Rxh2+ 31. Kxh2 Qd7 32. Bg4 f5 33. Bxf8 fxg4 34. Bd6 Rh8+ 35. Kg1 Qh7 36. Qg3 Qf5 37. Rc1 Bc6 38. Nd2 Kb7 39. Nf1 a5 40. Be7 Rh7 41. Bg5 Rh8 42. Nh2 Qh7 43. Bf6 Rg8 44. Nxg4 Qh5 45. Bg5 Rf8 46. Kf2 Qg6 47. Nh2 Rg8 48. Nf1 Qh5 49. Qf3 Rxg5 50. fxg5 Qxg5 51. Qe3 Qh4+ 52. g3 Qh3 53. Ke1 Qh1 54. Qf4 Qg2 55. Qf7+ Ka6 56. Qf2 Qh1 57. Kd2 Bb5 58. Re1 Qh7 59. Kc1 Qd3 60. Qd2 Qc4 61. Ne3 Qa4 62. g4 Qa3+ 63. Kb1 Qa4 64. g5 Qf4 65. Nf1 Qf5+ 66. Kb2 Bxf1 67. g6 Bc4 68. Rg1 Qf8 69. g7 Qg8 70. Qf2 d4 71. Qf8 dxc3+ 72. Kxc3 Qh7 73. Qa8+ Kb5 74. a4+ Kxa4 75. Qc6+ Ka3 76. Ra1+ Ba2 77. Qg2 Ka4 78. Rxa2+ Kb5 79. Rb2+ 1-0

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2015.05.26"]
[Round "4"]
[White "Opasiak, Dustin Tennessee"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "C18"]
[WhiteElo "1735"]
[BlackElo "1830"]
[PlyCount "72"]
[EventDate "2015.05.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qa5 7. Bd2 Qa4 8. Qg4 g6 9. Kd1 Nc6 10. Nf3 Nge7 11. Qf4 h6 12. Qf6 Rh7 13. Bxh6 Ng8 14. Qf4 Rxh6 15. Ng5 Nd8 16. Rb1 c4 17. Be2 Qxa3 18. Kd2 Qe7 19. h4 f6 20. exf6 Qxf6 21. Qc7 Ne7 22. Rh3 Nf5 23. Qf4 Qf8 24. h5 Ne7 25. Qe3 Kd7 26. Rf3 Nf5 27. Qe5 Qe7 28. Nh3 g5 29. g4 Nc6 30. Qh2 Nd6 31. Re3 b5 32. f4 gxf4 33. Nxf4 Qg5 34. Bf3 b4 35. Rbe1 bxc3+ 36. Kxc3 Nb5+ 0-1

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2015.05.25"]
[Round "3"]
[White "Chyzynski, David"]
[Black "Cassens, Erhard Otto"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "1778"]
[BlackElo "1830"]
[PlyCount "87"]
[EventDate "2015.05.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 e6 2. c4 c6 3. Bf4 d5 4. e3 f5 5. Nf3 Nf6 6. Bd3 dxc4 7. Bxc4 Bb4+ 8. Nbd2 b5 9. Bb3 Ne4 10. 0-0 Nxd2 11. Nxd2 Bd6 12. Bxd6 Qxd6 13. Rc1 a5 14. a4 Ba6 15. Re1 0-0 16. Qf3 Ra7 17. Rc5 Kh8 18. Qg3 f4 19. Qh3 fxe3 20. Qxe3 Raf7 21. Nf3 Nd7 22. Rc2 Rf6 23. Qc3 Bb7 24. Rce2 b4 25. Qc2 Rxf3 26. gxf3 Rxf3 27. Re3 Qf4 28. Rxf3 Qxf3 29. Bxe6 Nf8 30. Qe4 Qf6 31. Bh3 Qg5+ 32. Bg2 Qd2 33. b3 Bc8 34. Qe3 Qc2 35. Qe8 Qf5 36. Qxc6 Bd7 37. Qc5 Qf6 38. Qe5 Qg6 39. Qxa5 h5 40. Qxb4 Ne6 41. Qb8+ Kh7 42. Qg3 Qf6 43. Qe5 Qg6 44. Qe4 1-0

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2015.05.24"]
[Round "2"]
[White "Cassens, Erhard Otto"]
[Black "Oelrichs, Manfred"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "1830"]
[BlackElo "1727"]
[PlyCount "169"]
[EventDate "2015.05.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 g6 2. Bf4 d6 3. Nd2 Nf6 4. e4 Bg7 5. c3 0-0 6. Be2 c5 7. d5 Nbd7 8. h4 h5 9. g4 hxg4 10. Bxg4 Nxg4 11. Qxg4 Ne5 12. Qe2 Bg4 13. Qe3 Bh5 14. f3 Qb6 15. Ne2 Qa6 16. Nc1 b5 17. Bxe5 Bxe5 18. f4 Bg7 19. Ne2 Qc8 20. Rg1 e6 21. dxe6 Qxe6 22. Ng3 Qh3 23. Rh1 Qg4 24. Nxh5 Qxh5 25. Qe2 Qxe2+ 26. Kxe2 Bh6 27. Kf3 Kg7 28. Rhg1 f5 29. h5 fxe4+ 30. Ke2 Rxf4 31. Rxg6+ Kh7 32. Rxd6 e3 33. Rd7+ Kh8 34. Nf3 Rg8 35. Ne1 Rf2+ 36. Kd1 e2+ 37. Kc2 c4 38. a4 bxa4 39. Rxa4 Rf1 40. Raxa7 Rg7 41. Ra8+ Kh7 42. Rdd8 Rgg1 43. Rh8+ Kg7 44. Rag8+ Kf7 45. Rxg1 Rxg1 46. Rxh6 Rxe1 47. Kd2 Rb1 48. Kxe2 Rxb2+ 49. Ke3 Rh2 50. Kd4 Rh4+ 51. Kd5 Kg7 52. Rg6+ Kh7 53. Rg5 Kh6 54. Re5 Kg7 55. Kc5 Kf6 56. Rd5 Ke6 57. Rd6+ Ke7 58. Rh6 Kf7 59. Kb4 Kg7 60. Rg6+ Kf7 61. Rg5 Ke6 62. Rc5 Kd6 63. Rg5 Ke6 64. Ra5 Kd6 65. Ra6+ Kd5 66. h6 Ke5 67. Kc5 Kf5 68. Kd5 Kg5 69. Rc6 Kf5 70. Rxc4 Rxh6 71. Rc8 Rh1 72. Rf8+ Kg4 73. c4 Rh5+ 74. Kd4 Rh1 75. c5 Rd1+ 76. Ke5 Re1+ 77. Kd6 Rd1+ 78. Kc7 Ra1 79. c6 Rc1 80. Rf2 Kg5 81. Kd7 Rd1+ 82. Kc8 Rc1 83. c7 Kg6 84. Rd2 Kf6 85. Kd7 1-0

[Event "Hamburg-ch MB"]
[Site "Hamburg"]
[Date "2015.05.23"]
[Round "1"]
[White "Cassens, Erhard Otto"]
[Black "Wrobel, Eduard"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1830"]
[BlackElo "1734"]
[PlyCount "72"]
[EventDate "2015.05.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 0-0 5. 0-0 e6 6. Nbd2 b6 7. b3 Bb7 8. Ba3 Re8 9. c4 d6 10. Qc2 c5 11. Rad1 Qc7 12. e4 Nbd7 13. Bd3 a6 14. d5 exd5 15. exd5 Ng4 16. Rfe1 Nge5 17. Bf1 Re7 18. Nxe5 Nxe5 19. h3 Rae8 20. Kh1 Bc8 21. g4 Bh6 22. Ne4 Bg7 23. Bg2 f5 24. gxf5 Bxf5 25. Bc1 h6 26. Re3 Qd7 27. Qe2 g5 28. Re1 Ng6 29. Bb2 Bxe4 30. Bxg7 Bxg2+ 31. Kg1 Rxe3 32. fxe3 Nf4 33. Qg4 Qxg7 34. exf4 Rxe1+ 35. Kf2 Rf1+ 36. Kxg2 Rxf4 0-1

[Event "Hamburg-ch Seniors 21st"]
[Site "Hamburg"]
[Date "2014.11.06"]
[Round "9"]
[White "Cassens, Erhard Otto"]
[Black "Raedisch, Peter"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1630"]
[BlackElo "1651"]
[PlyCount "69"]
[EventDate "2014.10.29"]
[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. e3 a6 3. Bd3 Nf6 4. Nd2 Nc6 5. Ngf3 Nb4 6. 0-0 Nxd3 7. cxd3 h6 8. Ne5 Bf5 9. Nb3 e6 10. Bd2 Bd6 11. Qe2 Nd7 12. f4 Nxe5 13. fxe5 Be7 14. Rac1 Bg5 15. Na5 Rb8 16. Nb3 0-0 17. h3 c6 18. Rf3 Qb6 19. Be1 Qb5 20. Nc5 Rbd8 21. Rc3 Qb6 22. Rb3 Qa7 23. Rxb7 Qa8 24. h4 Bg4 25. hxg5 hxg5 26. Qc2 Bxf3 27. gxf3 g6 28. Qa4 Rc8 29. Rb6 Rfd8 30. b3 Kg7 31. Rxa6 Qb8 32. Ra7 Qb5 33. Nxe6+ Kh6 34. Qxb5 cxb5 35. Nxd8 1-0

[Event "Hamburg-ch Seniors 21st"]
[Site "Hamburg"]
[Date "2014.11.05"]
[Round "8"]
[White "Cassens, Erhard Otto"]
[Black "Funke, Hermann"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1630"]
[BlackElo "1498"]
[PlyCount "79"]
[EventDate "2014.10.29"]
[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. e3 g6 3. Bd3 Nf6 4. b3 Bg7 5. Nd2 0-0 6. h3 Nbd7 7. Ngf3 c5 8. 0-0 Re8 9. Ne5 Nxe5 10. dxe5 Nd7 11. f4 f5 12. Qf3 Nf8 13. Bb5 Bd7 14. Qxd5+ e6 15. Qd3 Re7 16. a4 a6 17. Bxd7 Rxd7 18. Qc3 g5 19. Nc4 gxf4 20. exf4 Ng6 21. Be3 b6 22. Qe1 Raa7 23. Rd1 Rxd1 24. Qxd1 Rd7 25. Qf3 Bf8 26. Qc6 Qe8 27. Nxb6 Rd8 28. Qxe8 Rxe8 29. Nd7 Be7 30. Nxc5 Bxc5 31. Bxc5 Rc8 32. b4 a5 33. c3 h5 34. g3 Rd8 35. Bd6 axb4 36. cxb4 Ra8 37. a5 Ra7 38. Rc1 Rg7 39. Rc8+ Kh7 40. Rc7 1-0

[Event "Hamburg-ch Seniors 21st"]
[Site "Hamburg"]
[Date "2014.11.04"]
[Round "7"]
[White "Diehl, Walter"]
[Black "Cassens, Erhard Otto"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "1824"]
[BlackElo "1630"]
[PlyCount "47"]
[EventDate "2014.10.29"]
[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 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Bd3 Bxd3 6. Qxd3 Nd7 7. 0-0 Qb6 8. Nbd2 h6 9. Nb3 Qb5 10. Qd1 Ne7 11. Nh4 g5 12. Nf3 Ng6 13. h3 Be7 14. Be3 0-0 15. Nh2 f5 16. Qh5 Kg7 17. f4 Rh8 18. Rae1 c5 19. dxc5 Nxc5 20. Nd4 Qxb2 21. g4 gxf4 22. gxf5 fxe3 23. Qxg6+ Kf8 24. fxe6+ 1-0

[Event "Hamburg-ch Seniors 21st"]
[Site "Hamburg"]
[Date "2014.11.03"]
[Round "6"]
[White "Kornrumpf, Joachim"]
[Black "Cassens, Erhard Otto"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "1960"]
[BlackElo "1630"]
[PlyCount "66"]
[EventDate "2014.10.29"]
[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 e6 2. e3 d5 3. Nf3 c6 4. b3 Bd6 5. Bb2 Nf6 6. Be2 0-0 7. 0-0 Nbd7 8. Qc2 Ne4 9. d3 Ng5 10. Nbd2 Nxf3+ 11. Nxf3 Qe8 12. e4 dxe4 13. dxe4 e5 14. Rad1 Bc5 15. Bc3 Qe7 16. Qb2 Ba3 17. Qa1 f6 18. Qb1 a5 19. h3 Nc5 20. Nh2 Ne6 21. Bg4 Nf4 22. Rd2 h5 23. Bxc8 Rfxc8 24. Rfd1 Rc7 25. Nf3 g5 26. Kh2 Bb4 27. Qc2 Ne6 28. Bxb4 axb4 29. Rd3 c5 30. Qd2 Nd4 31. Nxd4 exd4 32. Qe2 Qe5+ 33. Kg1 Rh7 1/2-1/2

[Event "Hamburg-ch Seniors 21st"]
[Site "Hamburg"]
[Date "2014.11.02"]
[Round "5"]
[White "Cassens, Erhard Otto"]
[Black "Gehrke, Rolf"]
[Result "0-1"]
[ECO "D05"]
[WhiteElo "1630"]
[BlackElo "1954"]
[PlyCount "68"]
[EventDate "2014.10.29"]
[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. e3 Nf6 3. Nf3 e6 4. Bd3 d5 5. b3 cxd4 6. exd4 Nc6 7. a3 h6 8. 0-0 Bd6 9. Bb2 0-0 10. Ne5 Qc7 11. f4 Ne4 12. Bxe4 dxe4 13. Nc3 f5 14. Nb5 Qd8 15. Nxd6 Qxd6 16. Nc4 Qe7 17. a4 Rd8 18. c3 b6 19. Qh5 Ba6 20. Ba3 Qc7 21. Qg6 Bxc4 22. bxc4 Qf7 23. Qxf7+ Kxf7 24. Rab1 Na5 25. Rb4 Rac8 26. c5 bxc5 27. Rb5 cxd4 28. Rxa5 d3 29. Rxa7+ Kg8 30. Bc1 d2 31. Bxd2 Rxd2 32. Rc1 e3 33. Kf1 e2+ 34. Ke1 Rcd8 0-1

[Event "Hamburg-ch Seniors 21st"]
[Site "Hamburg"]
[Date "2014.10.31"]
[Round "4"]
[White "Ristic, Sreten"]
[Black "Cassens, Erhard Otto"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1796"]
[BlackElo "1630"]
[PlyCount "222"]
[EventDate "2014.10.29"]
[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 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 Bd7 7. 0-0 f6 8. Qd3 c4 9. Qc2 Qc7 10. Bf4 f5 11. b4 Nce7 12. a4 Ng6 13. Be3 Be7 14. g3 0-0-0 15. Na3 Rf8 16. Nb5 Qb8 17. Bg5 Bxb5 18. axb5 h6 19. Bd2 Bd8 20. h4 Rf7 21. Qa2 Bb6 22. h5 Nf8 23. Nh4 Ne7 24. f4 Qc7 25. Kh2 Qd7 26. Qa4 Qe8 27. Ra3 Rg8 28. Nf3 Nh7 29. Ne1 Nf8 30. Ra2 Qd7 31. Nc2 g6 32. Na3 Rfg7 33. Be1 Qe8 34. Qd1 g5 35. Kg2 g4 36. Rh1 Kc7 37. Bf2 Nc8 38. Rd2 Kb8 39. Qf1 Rc7 40. Bd1 Ne7 41. Be3 Qf7 42. Ra2 Nc8 43. Be2 Qe8 44. Qa1 Rcg7 45. Kg1 Bd8 46. Bf1 Nb6 47. Rd2 Rc7 48. Bg2 Na8 49. Qa2 Rgg7 50. Rd1 Rc8 51. Qc2 Bb6 52. Rh4 Nc7 53. Ra1 Nxb5 54. Qa4 Nxc3 55. Qxe8 Rxe8 56. Kf2 a6 57. Rhh1 Rc8 58. Rhc1 Ne4+ 59. Bxe4 fxe4 60. Nc2 Kc7 61. Bd2 Nd7 62. Bc3 Nb8 63. Rh1 Kd7 64. Rh4 Bd8 65. Rhh1 Nc6 66. Rhb1 Na7 67. Ke3 Nb5 68. Kd2 Be7 69. Na3 Nxa3 70. Rxa3 Ra8 71. Ra5 Bd8 72. Ra4 b5 73. Ra3 Kc6 74. Rba1 Rga7 75. Kc2 Bb6 76. Kd2 Kb7 77. Ke3 Rf8 78. Rh1 Bd8 79. Ra2 Be7 80. Bd2 Rfa8 81. Ke2 Bd8 82. f5 exf5 83. Bxh6 c3 84. Be3 Be7 85. h6 Bxb4 86. Bg5 Rh8 87. Bf6 Rh7 88. Ke3 Bf8 89. Rah2 b4 90. Kf4 b3 91. Rb1 b2 92. Kxf5 Rxh6 93. Rc2 Bb4 94. Kxg4 Rg6+ 95. Kf4 Ra8 96. g4 a5 97. g5 Rc8 98. Kf5 Rgg8 99. g6 Ka6 100. g7 Kb5 101. Kg6 a4 102. Rbxb2 cxb2 103. Rxb2 a3 104. Rb1 Ra8 105. Kf7 a2 106. Ra1 Bc3 107. Rxa2 Rxa2 108. e6 Ra7+ 109. e7 Rxg7+ 110. Bxg7 Bb4 111. Bf6 Rxe7+ 0-1

[Event "Hamburg-ch Seniors 21st"]
[Site "Hamburg"]
[Date "2014.10.30"]
[Round "3"]
[White "Cassens, Erhard Otto"]
[Black "Schulz, Hans"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1630"]
[BlackElo "1362"]
[PlyCount "89"]
[EventDate "2014.10.29"]
[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. e3 g6 3. Bd3 Bg7 4. c3 0-0 5. f4 d6 6. Nf3 Nc6 7. Qc2 e5 8. 0-0 exd4 9. exd4 Ne7 10. Qb3 b6 11. Nbd2 Bf5 12. Ba6 Be6 13. Qd1 c5 14. Re1 Ned5 15. Nf1 Nc7 16. Bd3 c4 17. Bc2 Re8 18. Ne3 b5 19. f5 Bd7 20. fxg6 fxg6 21. b3 Ncd5 22. Bd2 Nxe3 23. Rxe3 Rxe3 24. Bxe3 Nd5 25. Bd2 Qe8 26. Qe1 Qxe1+ 27. Rxe1 Re8 28. Be4 Nf6 29. Bb7 Rxe1+ 30. Bxe1 a5 31. bxc4 bxc4 32. Bg3 Bf8 33. Bh4 Kg7 34. h3 Be6 35. Kf1 Bd5 36. Bxf6+ Kxf6 37. Bxd5 Kf5 38. Bxc4 Ke4 39. Ng5+ Kf5 40. Nf3 h6 41. Be2 g5 42. c4 Bg7 43. d5 Kf6 44. Nh2 h5 45. Bxh5 1-0

