[Event "Uelzen Uhlenkoeper op"]
[Site "Uelzen"]
[Date "2024.12.30"]
[Round "7"]
[White "Nyenhuis, Yannek"]
[Black "Dehn, Marcus"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "1943"]
[BlackElo "2053"]
[PlyCount "96"]
[EventDate "2024.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CB01_2025"]
[SourceDate "2025.01.01"]
[SourceVersion "1"]
[SourceVersionDate "2025.01.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 Ne4 6. Bd3 f5 7. 0-0 0-0 8. Bxb4 Qxb4 9. Qc2 d5 10. c5 c6 11. a3 Qa5 12. b4 Qd8 13. Nc3 Nd7 14. Nd2 Nxd2 15. Qxd2 e5 16. dxe5 Nxe5 17. Ne2 Qh4 18. Qc3 Ng6 19. Rab1 a6 20. a4 Qg5 21. f4 Qe7 22. Rf3 Rf6 23. Nd4 Nf8 24. Rg3 g6 25. Kf2 Kf7 26. Nf3 Nd7 27. Ng5+ Ke8 28. h4 h5 29. Nf3 a5 30. Bc2 axb4 31. Rxb4 Ra5 32. Rb5 cxb5 33. Qxa5 Qxc5 34. Nd4 b4 35. Qb5 Qxb5 36. Nxb5 Kd8 37. Bb3 Nb6 38. Ke2 Bd7 39. Kd3 Bxb5+ 40. axb5 Ke7 41. Kd4 Kd6 42. Rf3 Re6 43. Bc2 Nc4 44. Bd3 Nd2 45. Bc2 b3 46. Bd3 Nxf3+ 47. gxf3 b2 48. Bb1 b6 0-1

[Event "Uelzen Uhlenkoeper op"]
[Site "Uelzen"]
[Date "2024.12.29"]
[Round "6"]
[White "Dehn, Marcus"]
[Black "Stelmaszyk, Nico"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2053"]
[BlackElo "2403"]
[PlyCount "72"]
[EventDate "2024.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CB01_2025"]
[SourceDate "2025.01.01"]
[SourceVersion "1"]
[SourceVersionDate "2025.01.01"]
[SourceQuality "1"]

1. d4 d5 2. g3 Nf6 3. Bg2 Bf5 4. c3 c6 5. Qb3 Qb6 6. Nd2 e6 7. Ngf3 h6 8. 0-0 Nbd7 9. a4 Bd6 10. a5 Qc7 11. Re1 0-0 12. Nh4 Bh7 13. e4 dxe4 14. Nxe4 Nxe4 15. Bxe4 Bxe4 16. Rxe4 c5 17. Qc4 Nf6 18. Re2 Rfd8 19. dxc5 Bxc5 20. Be3 Rac8 21. Qxc5 Qxc5 22. Bxc5 Rxc5 23. Ra3 Rd1+ 24. Kg2 g5 25. Nf3 g4 26. Nd4 e5 27. Nf5 e4 28. Nxh6+ Kg7 29. Nxg4 Nxg4 30. Rxe4 Nf6 31. Re2 Rb5 32. Rc2 Rb1 33. Ra2 Nd7 34. c4 Rc5 35. Ra4 Ne5 36. Rb4 Nd3 0-1

[Event "Uelzen Uhlenkoeper op"]
[Site "Uelzen"]
[Date "2024.12.29"]
[Round "5"]
[White "Sayas, Payyappat"]
[Black "Dehn, Marcus"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "1823"]
[BlackElo "2053"]
[PlyCount "60"]
[EventDate "2024.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CB01_2025"]
[SourceDate "2025.01.01"]
[SourceVersion "1"]
[SourceVersionDate "2025.01.01"]
[SourceQuality "1"]

1. b3 Nf6 2. Bb2 d6 3. Nf3 g6 4. e4 Bg7 5. Be2 0-0 6. d3 c5 7. 0-0 Nc6 8. Nbd2 Ne8 9. Bxg7 Nxg7 10. Nc4 b5 11. Ne3 Bb7 12. Qd2 Nd4 13. Rfe1 Nxe2+ 14. Rxe2 f5 15. Ng5 e6 16. Nh3 f4 17. Nf1 f3 18. gxf3 Qh4 19. Kg2 Qf6 20. Re3 Qxa1 21. c3 b4 22. d4 Rac8 23. Rd3 Rf7 24. dxc5 bxc3 25. Qh6 c2 26. Ng5 c1Q 27. Ng3 Qxg5 28. Qxg5 Qf6 29. Qxf6 Rxf6 30. cxd6 e5 0-1

[Event "Uelzen Uhlenkoeper op"]
[Site "Uelzen"]
[Date "2024.12.28"]
[Round "4"]
[White "Dehn, Marcus"]
[Black "Wilk, Clemens"]
[Result "1/2-1/2"]
[ECO "D12"]
[WhiteElo "2053"]
[BlackElo "1869"]
[PlyCount "76"]
[EventDate "2024.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CB01_2025"]
[SourceDate "2025.01.01"]
[SourceVersion "1"]
[SourceVersionDate "2025.01.01"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. c4 c6 5. Qb3 Qb6 6. c5 Qc7 7. Ne5 Nbd7 8. f4 h5 9. Nd2 e6 10. Ndf3 Nxe5 11. fxe5 Ne4 12. Bd3 Be7 13. Qc2 g6 14. 0-0 h4 15. b4 a6 16. Bd2 Ng5 17. a4 Nxf3+ 18. gxf3 Bxd3 19. Qxd3 Kf8 20. b5 axb5 21. axb5 Kg7 22. Rfb1 Rhc8 23. Qb3 Qd7 24. Kf2 Bd8 25. Ke2 Rxa1 26. Rxa1 b6 27. cxb6 cxb5 28. Ra5 Bxb6 29. Rxb5 Bd8 30. h3 Qc6 31. Rc5 Qd7 32. Rxc8 Qxc8 33. Qb5 Qc2 34. Qd3 Qb2 35. Qc3 Qb1 36. Qc8 Qb5+ 37. Ke1 Ba5 38. Bxa5 Qxa5+ 1/2-1/2

[Event "Uelzen Uhlenkoeper op"]
[Site "Uelzen"]
[Date "2024.12.28"]
[Round "3"]
[White "Stopa, Jacek"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "E40"]
[WhiteElo "2323"]
[BlackElo "2053"]
[PlyCount "65"]
[EventDate "2024.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CB01_2025"]
[SourceDate "2025.01.01"]
[SourceVersion "1"]
[SourceVersionDate "2025.01.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 d6 6. Nge2 e5 7. 0-0 Nc6 8. d5 Ne7 9. a3 Bxc3 10. Nxc3 Ng6 11. b4 Nd7 12. Qc2 a5 13. Bd2 Qe7 14. f3 Nb6 15. Rac1 axb4 16. axb4 Bd7 17. Qb3 Kh8 18. Ne2 Ba4 19. Qb1 Bd7 20. e4 Ra3 21. Rc3 Rxc3 22. Bxc3 Qg5 23. Qc1 Qxc1 24. Rxc1 Na4 25. Ba1 b6 26. Rc2 Nh4 27. f4 f5 28. fxe5 fxe4 29. Bxe4 dxe5 30. Ng3 Re8 31. c5 bxc5 32. bxc5 g6 33. Rc4 1-0

[Event "Hoogeveen op 25th"]
[Site "Hoogeveen"]
[Date "2022.10.21"]
[Round "8"]
[White "Ten Ham, John"]
[Black "Dehn, Marcus"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "1910"]
[BlackElo "2098"]
[PlyCount "88"]
[EventDate "2022.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. Bf4 Bd6 5. Bxd6 Qxd6 6. e3 Nf6 7. Nf3 Nbd7 8. Be2 0-0 9. 0-0 b6 10. cxd5 exd5 11. Rc1 Bb7 12. a3 Rfc8 13. b4 a5 14. Qb3 axb4 15. axb4 b5 16. Ra1 Nb6 17. Rfd1 Nc4 18. Ne1 Rcb8 19. Nd3 Bc8 20. Nc5 Bg4 21. f3 Bh5 22. Bxc4 bxc4 23. Qb2 g5 24. Rxa8 Rxa8 25. e4 Qf4 26. Qc1 Qxc1 27. Rxc1 Bg6 28. b5 cxb5 29. Nxb5 dxe4 30. fxe4 Nxe4 31. Nxe4 Bxe4 32. Rxc4 Ra2 33. Nd6 Rxg2+ 34. Kf1 Rg4 35. Kf2 h5 36. Ke3 Bh1 37. Rc7 Rh4 38. Nxf7 g4 39. Nh6+ Kf8 40. Rc2 Ke8 41. Nf5 Rh3+ 42. Kf4 Kd7 43. Ng3 Bf3 44. Ne4 Bxe4 1/2-1/2

[Event "Hoogeveen op 25th"]
[Site "Hoogeveen"]
[Date "2022.10.20"]
[Round "7"]
[White "Dehn, Marcus"]
[Black "Kumar, Sanjit S"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2098"]
[BlackElo "1923"]
[PlyCount "58"]
[EventDate "2022.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 d5 2. g3 Nf6 3. Bg2 g6 4. Nh3 Bg7 5. 0-0 0-0 6. Nf4 c6 7. Na3 b5 8. c3 Ne4 9. f3 Nd6 10. Nd3 f5 11. Bf4 Nd7 12. Ne5 Nxe5 13. Bxe5 Bxe5 14. dxe5 Qb6+ 15. Kh1 Nc4 16. Nxc4 bxc4 17. Rb1 Be6 18. Qd2 Rad8 19. e3 c5 20. f4 d4 21. h4 h5 22. b4 dxc3 23. Qxc3 Rd3 24. Qe1 cxb4 25. Rxb4 Qxe3 26. Qxe3 Rxe3 27. Rb7 Kf7 28. Rxa7 Rc8 29. Bf3 Rxf3 0-1

[Event "Hoogeveen op 25th"]
[Site "Hoogeveen"]
[Date "2022.10.19"]
[Round "6"]
[White "Hari, Charan Sai Kalluri"]
[Black "Dehn, Marcus"]
[Result "1/2-1/2"]
[ECO "E67"]
[WhiteElo "1981"]
[BlackElo "2098"]
[PlyCount "54"]
[EventDate "2022.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. g3 Bg7 5. Bg2 0-0 6. 0-0 c6 7. Nc3 Nbd7 8. e4 Qc7 9. Rb1 e5 10. d5 Nc5 11. Ne1 a5 12. h3 cxd5 13. cxd5 b5 14. Nxb5 Qb6 15. Nc3 Ba6 16. Nc2 Bxf1 17. Qxf1 Qa6 18. Qxa6 Rxa6 19. Bf1 Raa8 20. f3 Nh5 21. g4 Nf4 22. Nb5 Rfd8 23. Bd2 f5 24. exf5 gxf5 25. Nc7 Ra7 26. Nb5 Raa8 27. Nc7 Ra7 1/2-1/2

[Event "Hoogeveen op 25th"]
[Site "Hoogeveen"]
[Date "2022.10.18"]
[Round "4"]
[White "Dehn, Marcus"]
[Black "Bommel, Peter"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2098"]
[PlyCount "59"]
[EventDate "2022.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 c5 2. e3 d5 3. c3 cxd4 4. exd4 Nc6 5. Bd3 e5 6. dxe5 Nxe5 7. Bb5+ Nc6 8. Qe2+ Be7 9. Nf3 Bg4 10. h3 Bh5 11. g4 Bg6 12. Ne5 Rc8 13. Bf4 Nf6 14. Nxc6 bxc6 15. Ba6 0-0 16. Bxc8 Qxc8 17. 0-0 Re8 18. Qd1 h5 19. f3 Bc5+ 20. Kh1 hxg4 21. hxg4 Nxg4 22. fxg4 Be4+ 23. Kh2 Qd8 24. g5 g6 25. Nd2 Bf5 26. Re1 Kg7 27. Rxe8 Qxe8 28. Kg3 Be3 29. Bxe3 Qxe3+ 30. Nf3 1-0

[Event "Hoogeveen op 25th"]
[Site "Hoogeveen"]
[Date "2022.10.17"]
[Round "3"]
[White "Niemeijer, Leon"]
[Black "Dehn, Marcus"]
[Result "1/2-1/2"]
[ECO "E11"]
[WhiteElo "1841"]
[BlackElo "2098"]
[PlyCount "144"]
[EventDate "2022.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 0-0 6. Bg2 d6 7. Nf3 Qe7 8. Nc3 c6 9. d5 exd5 10. cxd5 c5 11. 0-0 Bd7 12. Qd3 Na6 13. e4 Rab8 14. a4 Nb4 15. Qe2 b6 16. Rfe1 Rfe8 17. Nh4 a6 18. b3 Qe5 19. Rac1 Qh5 20. Qxh5 Nxh5 21. Bf1 g5 22. Nf3 f6 23. Nd2 b5 24. a5 Kg7 25. f3 Re7 26. Kf2 Rbe8 27. Be2 Kg6 28. Nf1 Ng7 29. g4 h5 30. h3 Re5 31. Ne3 Kf7 32. Bf1 Rh8 33. Kg2 Ne8 34. Ne2 Nd3 35. Ng3 Nxe1+ 36. Rxe1 Ng7 37. Rc1 Ree8 38. Be2 Rh6 39. Bf1 Reh8 40. Rc2 hxg4 41. hxg4 Rh2+ 42. Kg1 Rxc2 43. Nxc2 Rc8 44. Ne3 Ke7 45. Kf2 Rh8 46. Kg2 Ne8 47. Be2 Nc7 48. Ngf1 b4 49. Bc4 Nb5 50. Nd2 Nd4 51. Ndf1 Bb5 52. Nd2 Kd7 53. Kg1 Kc7 54. Kg2 Bd7 55. Ndf1 Nb5 56. Nd2 Na3 57. Kg1 Rb8 58. Be2 Nb5 59. Bc4 Nd4 60. Bd3 Bb5 61. Bc4 Kb7 62. Kg2 Ka7 63. Kg1 Be8 64. Bd3 Kb7 65. Kg2 Kc7 66. Kg1 Nb5 67. Kg2 Na3 68. Kf2 Bb5 69. Bc4 Bd7 70. Bd3 Rb5 71. Nec4 Rb8 72. Ne3 Rb5 1/2-1/2

[Event "Hoogeveen op 25th"]
[Site "Hoogeveen"]
[Date "2022.10.16"]
[Round "2"]
[White "Dehn, Marcus"]
[Black "Moroni, Luca Jr"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "2098"]
[BlackElo "2573"]
[PlyCount "94"]
[EventDate "2022.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 g6 2. g3 Bg7 3. Bg2 d6 4. Nf3 Bd7 5. 0-0 Qc8 6. Re1 Nc6 7. c4 Bh3 8. Bh1 h5 9. d5 Ne5 10. Nxe5 Bxe5 11. f4 Bg7 12. e4 h4 13. Bf3 hxg3 14. hxg3 Nh6 15. Nc3 Bg4 16. Kg2 Bxf3+ 17. Qxf3 Ng4 18. Rh1 Rxh1 19. Kxh1 Bxc3 20. bxc3 f5 21. Kg2 Qd7 22. a4 0-0-0 23. Be3 Rh8 24. Bg1 e6 25. Kf1 Rh2 26. Ke1 Rb2 27. Kd1 Nf6 28. exf5 exf5 29. Kc1 Rb3 30. Bd4 Ne4 31. Qd1 Rxc3+ 32. Bxc3 Nxc3 33. Qc2 Ne4 34. Ra3 Qg7 35. Qd3 Qh8 36. Kb1 a5 37. Ka2 Qh2+ 38. Ka1 b6 39. Ra2 Qg1+ 40. Qb1 Qxb1+ 41. Kxb1 Nc3+ 42. Kb2 Nxa2 43. Kxa2 Kb7 44. Kb3 c6 45. Kc3 cxd5 46. cxd5 Ka6 47. Kc4 b5+ 0-1

[Event "Hoogeveen op 25th"]
[Site "Hoogeveen"]
[Date "2022.10.15"]
[Round "1"]
[White "Cuyvers, Jens"]
[Black "Dehn, Marcus"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "1765"]
[BlackElo "2098"]
[PlyCount "106"]
[EventDate "2022.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 d6 2. c4 e5 3. Nf3 Nc6 4. Nc3 Bg4 5. d5 Nce7 6. h3 Bd7 7. e4 Ng6 8. Be3 Be7 9. Qd2 h6 10. Be2 Nh4 11. Nxh4 Bxh4 12. 0-0 Bg5 13. f4 Bf6 14. fxe5 Bxe5 15. Rf2 Qh4 16. Rf3 Nf6 17. Bf4 Bxf4 18. Rxf4 Qg5 19. Kh1 0-0 20. Raf1 Rae8 21. Qe1 a6 22. a4 a5 23. Qf2 b6 24. b3 Re5 25. Qf3 Qg6 26. g4 h5 27. Rg1 hxg4 28. hxg4 Rfe8 29. Bd3 Rg5 30. Be2 Ree5 31. Rg2 Kf8 32. Kg1 Nxg4 33. Kf1 Nf6 34. Rxg5 Rxg5 35. Kf2 Ng4+ 36. Ke1 Ne5 37. Qf2 Rg2 38. Qe3 Qg3+ 39. Qxg3 Rxg3 40. Kd2 Rg2 41. Nb5 Bxb5 42. cxb5 Nd7 43. Rf3 Ke7 44. Re3 Kf6 45. Rf3+ Kg6 46. Re3 Kg5 47. Kc3 Kh4 48. b4 Rg3 49. Rxg3 Kxg3 50. bxa5 bxa5 51. Kd4 Kf4 52. Bd1 f6 53. Bc2 g5 0-1

[Event "GER-ch Net blitz qual4"]
[Site "Playchess.com INT"]
[Date "2020.03.23"]
[Round "2"]
[White "Benicke, Bastian"]
[Black "Dehn, Marcus"]
[Result "1/2-1/2"]
[ECO "E91"]
[WhiteElo "1600"]
[BlackElo "2098"]
[PlyCount "126"]
[EventDate "2020.03.23"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. Nf3 g6 2. d4 Bg7 3. c4 d6 4. Nc3 Nf6 5. e4 0-0 6. Be2 c6 7. 0-0 a6 8. Re1 b5 9. cxb5 axb5 10. b3 b4 11. Na4 Nxe4 12. Bb2 Nf6 13. Rc1 Nd5 14. Bc4 e6 15. Qd2 Bd7 16. Bxd5 cxd5 17. Qxb4 Bxa4 18. bxa4 Qd7 19. a5 Na6 20. Qa3 Rfb8 21. Rb1 h6 22. Bc3 Nc7 23. Rb3 Nb5 24. Qb2 Rc8 25. Rc1 Nxc3 26. Rcxc3 Rxc3 27. Qxc3 Qa7 28. h3 Qxa5 29. Rb8+ Kh7 30. Qxa5 Rxa5 31. Rb6 Rxa2 32. Rxd6 Ra1+ 33. Kh2 Rd1 34. Rd7 Kg8 35. Rd8+ Bf8 36. Kg3 f6 37. Rd7 Bg7 38. Re7 e5 39. dxe5 fxe5 40. Nxe5 Bxe5+ 41. Rxe5 Kf7 42. Re3 d4 43. Re4 Kf6 44. f3 Kf5 45. Kf2 Rd2+ 46. Kf1 h5 47. Re7 Kf4 48. Rf7+ Kg3 49. Rg7 d3 50. Rxg6+ Kf4 51. Ke1 Re2+ 52. Kf1 Rd2 53. Rd6 Kg3 54. Ke1 Rxg2 55. Kd1 d2 56. Rxd2 Rxd2+ 57. Kxd2 Kxf3 58. Ke1 Kg3 59. Kf1 Kxh3 60. Kg1 Kg3 61. Kh1 h4 62. Kg1 h3 63. Kh1 h2 1/2-1/2

[Event "GER-ch Net blitz qual4"]
[Site "Playchess.com INT"]
[Date "2020.03.23"]
[Round "3"]
[White "Dehn, Marcus"]
[Black "Braeutigam, Alexander"]
[Result "1-0"]
[ECO "A47"]
[WhiteElo "2098"]
[BlackElo "1631"]
[PlyCount "149"]
[EventDate "2020.03.23"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 e6 3. e3 b6 4. Nf3 Bb7 5. Nbd2 Be7 6. h3 0-0 7. Be2 d5 8. 0-0 Nbd7 9. a4 c5 10. c3 Ne4 11. Nxe4 dxe4 12. Ne5 Nxe5 13. Bxe5 Bd6 14. Bxd6 Qxd6 15. dxc5 Qxc5 16. Qd4 Qxd4 17. exd4 e5 18. Rfd1 exd4 19. Rxd4 Rad8 20. Rad1 Rxd4 21. Rxd4 g6 22. Rd7 Bc6 23. Rxa7 Rd8 24. Ra6 Rd2 25. Bb5 Bb7 26. Rxb6 Bd5 27. c4 Be6 28. b4 Rb2 29. Bc6 Bxc4 30. Bxe4 Ra2 31. a5 Ra1+ 32. Kh2 Ra2 33. Kg3 Kf8 34. Rc6 Bb5 35. Rc5 Be2 36. Bb7 Ra4 37. Rc8+ Kg7 38. Rc7 Rxb4 39. Bd5 Ra4 40. Rxf7+ Kh6 41. Ra7 Kg5 42. Rxh7 Rxa5 43. Bf3 Bxf3 44. Kxf3 Ra3+ 45. Ke2 Ra2+ 46. Ke3 Ra3+ 47. Ke4 Ra4+ 48. Ke5 Ra5+ 49. Ke6 Ra6+ 50. Kd5 Ra5+ 51. Kc4 Ra2 52. Rf7 Ra4+ 53. Kd3 Ra3+ 54. Ke2 Ra2+ 55. Kd3 Ra3+ 56. Kc4 Ra4+ 57. Kb3 Ra8 58. Rf3 Rb8+ 59. Kc3 Rc8+ 60. Kd3 Rd8+ 61. Ke2 Ra8 62. g3 Ra2+ 63. Kf1 Ra1+ 64. Kg2 Ra2 65. Rf8 Rb2 66. h4+ Kg4 67. Rf4+ Kh5 68. Kh3 Kh6 69. g4 Rb3+ 70. f3 Rb1 71. Rf7 Rh1+ 72. Kg3 Rg1+ 73. Kf4 Rh1 74. g5+ Kh5 75. Rh7# 1-0

[Event "GER-ch Net blitz qual4"]
[Site "Playchess.com INT"]
[Date "2020.03.23"]
[Round "6"]
[White "Dehn, Marcus"]
[Black "Kalla, Christian"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2098"]
[BlackElo "1988"]
[PlyCount "117"]
[EventDate "2020.03.23"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 0-0 5. e3 d5 6. h3 c5 7. Be2 Nc6 8. 0-0 cxd4 9. exd4 Qb6 10. Qb3 Nd7 11. Nbd2 e6 12. a4 Qxb3 13. Nxb3 f6 14. Bb5 e5 15. Bg3 a6 16. Bxc6 bxc6 17. Na5 c5 18. Rfd1 cxd4 19. cxd4 e4 20. Ne1 f5 21. Bd6 Rf6 22. Be5 Rb6 23. Bxg7 Kxg7 24. b3 Nf6 25. Rac1 Be6 26. Rc7+ Bf7 27. Rdc1 Ne8 28. Re7 Nd6 29. Rcc7 Rc8 30. g3 Rxc7 31. Rxc7 f4 32. gxf4 Nf5 33. Nc2 Kf6 34. Rc6+ Rxc6 35. Nxc6 Be8 36. N6b4 a5 37. Nxd5+ Kg7 38. Nb6 Bf7 39. Nc4 Bxc4 40. bxc4 Nd6 41. Ne3 Kf6 42. Kf1 Ke7 43. Ke1 Nc8 44. c5 Na7 45. Kd2 Kd7 46. Kc3 Kc6 47. Kc2 Kd7 48. Kc3 Nc6 49. Kc4 Nb4 50. Kb5 Nd3 51. Kxa5 Kc6 52. f5 gxf5 53. Nxf5 Kd5 54. Kb6 Nxf2 55. c6 Nd3 56. c7 Nb4 57. c8Q Na6 58. Qxa6 h5 59. Qb5+ 1-0

[Event "GER-ch Net blitz qual4"]
[Site "Playchess.com INT"]
[Date "2020.03.23"]
[Round "1"]
[White "Dehn, Marcus"]
[Black "Muse, Mladen"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "2098"]
[BlackElo "2389"]
[PlyCount "130"]
[EventDate "2020.03.23"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 g6 2. Nf3 Bg7 3. Bf4 d6 4. e3 Nd7 5. h3 e5 6. dxe5 dxe5 7. Bh2 Nh6 8. c3 Qe7 9. Nbd2 f6 10. Bc4 Nf7 11. 0-0 Nb6 12. Bb3 Be6 13. Bxe6 Qxe6 14. Qb3 Qe7 15. a4 Rb8 16. a5 Nd7 17. Nc4 0-0 18. e4 Nc5 19. Qa3 Rfe8 20. Nfd2 Bf8 21. Qa2 b5 22. axb6 axb6 23. Ne3 c6 24. Rfd1 b5 25. Ndf1 Kg7 26. f3 Kh8 27. Kh1 Bh6 28. Bg1 Ne6 29. Ng4 Bg7 30. Be3 h5 31. Nf2 Kh7 32. Rd2 Red8 33. Rad1 Rxd2 34. Rxd2 Rd8 35. Rxd8 Nexd8 36. Qa8 Qd7 37. Bb6 Ne6 38. Be3 f5 39. exf5 gxf5 40. Qa1 Nf8 41. Qd1 Qxd1 42. Nxd1 Kg6 43. Nd2 Ne6 44. Kg1 Bf8 45. Kf1 Nc5 46. Ke2 Kf6 47. Nf2 Ke6 48. Nd3 Na4 49. Kd1 c5 50. Kc2 c4 51. Nf2 Nc5 52. b3 Kd5 53. bxc4+ bxc4 54. Bxc5 Bxc5 55. Nd1 h4 56. Nb2 Nd6 57. Kb1 e4 58. fxe4+ fxe4 59. Kc2 Be3 60. Nf1 Bf4 61. Kd1 Nb5 62. Kc2 e3 63. Kd1 Nxc3+ 64. Ke1 e2 65. Nd2 Bg3# 0-1

[Event "GER-ch Net blitz qual4"]
[Site "Playchess.com INT"]
[Date "2020.03.23"]
[Round "8"]
[White "Dehn, Marcus"]
[Black "Seul, Georg"]
[Result "0-1"]
[ECO "A80"]
[WhiteElo "2098"]
[BlackElo "2372"]
[PlyCount "80"]
[EventDate "2020.03.23"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 f5 2. Nc3 Nf6 3. Bg5 d5 4. Bxf6 exf6 5. e3 Be6 6. h4 Nc6 7. h5 Bb4 8. Nge2 Ne7 9. a3 Ba5 10. Nf4 Bf7 11. b4 Bb6 12. Nd3 a5 13. Nc5 Rb8 14. N3a4 c6 15. Nxb6 Qxb6 16. c3 Qd8 17. Bd3 b6 18. Nb3 a4 19. Nd2 Ra8 20. Qf3 Qd7 21. Qf4 Be6 22. Nf3 Kf7 23. Nh4 g5 24. hxg6+ hxg6 25. Qg3 g5 26. Kd2 gxh4 27. Rxh4 Rag8 28. Qh2 Rxh4 29. Qxh4 f4 30. Qh5+ Kf8 31. Qh6+ Ke8 32. Qxf6 fxe3+ 33. Kxe3 Bf5 34. Bf1 Bg6 35. b5 Rf8 36. Qe5 Rf5 37. Qb8+ Kf7 38. bxc6 Qe6+ 39. Kd2 Rxf2+ 40. Kd1 Bh5+ 0-1

[Event "GER-ch Net blitz qual4"]
[Site "Playchess.com INT"]
[Date "2020.03.23"]
[Round "5"]
[White "Hapke, Thorsten"]
[Black "Dehn, Marcus"]
[Result "0-1"]
[ECO "E89"]
[WhiteElo "1564"]
[BlackElo "2098"]
[PlyCount "62"]
[EventDate "2020.03.23"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. c4 g6 2. Nc3 Bg7 3. e4 d6 4. d4 c6 5. f3 Nf6 6. Be3 0-0 7. Qd2 e5 8. d5 cxd5 9. cxd5 Nbd7 10. Nge2 a6 11. g4 b5 12. a3 Nb6 13. b3 Nfd7 14. Bh6 Nc5 15. Rb1 f6 16. Bxg7 Kxg7 17. Ng3 Ra7 18. Be2 Rh8 19. h4 Kf8 20. Qh6+ Kg8 21. h5 g5 22. Nf5 Bxf5 23. gxf5 Qf8 24. Qxf8+ Kxf8 25. Kf2 Ke7 26. Rhc1 Rc8 27. b4 Ncd7 28. Rc2 Rac7 29. Rbc1 Na4 30. Nxa4 Rxc2 31. Rxc2 Rxc2 0-1

[Event "GER-ch Net blitz qual4"]
[Site "Playchess.com INT"]
[Date "2020.03.23"]
[Round "9"]
[White "Sieber, Martin"]
[Black "Dehn, Marcus"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "2088"]
[BlackElo "2098"]
[PlyCount "84"]
[EventDate "2020.03.23"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nf3 d6 4. g3 c6 5. Bg2 Qa5+ 6. Bd2 Qh5 7. 0-0 Bh3 8. Nc3 Nd7 9. e4 Ngf6 10. Be3 Ng4 11. Nh4 Bxg2 12. Kxg2 Nxe3+ 13. fxe3 Qxd1 14. Raxd1 0-0 15. g4 a5 16. a4 Ra6 17. Rf2 Rb6 18. Rb1 e5 19. d5 Nc5 20. Nf3 Rb4 21. dxc6 bxc6 22. Rd2 Rd8 23. Rbd1 Nb7 24. c5 Nxc5 25. Rxd6 Rxd6 26. Rxd6 Rxb2+ 27. Kh3 Rc2 28. Nd1 Nxe4 29. Rd8+ Bf8 30. Nxe5 Kg7 31. Rd7 Ng5+ 32. Kg3 Ne4+ 33. Kf4 Nd6 34. e4 Rd2 35. g5 Rxd1 36. h4 h6 37. gxh6+ Kxh6 38. Nxf7+ Kh5 39. Nxd6 Bxd6+ 40. e5 Bxe5+ 41. Kxe5 Rxd7 42. Ke6 Rd4 0-1

[Event "GER-ch Net blitz qual4"]
[Site "Playchess.com INT"]
[Date "2020.03.23"]
[Round "4"]
[White "Tiarks, Jann Christian"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2159"]
[BlackElo "2098"]
[PlyCount "59"]
[EventDate "2020.03.23"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 g6 5. h3 Bg7 6. Nf3 Nh6 7. g4 f6 8. Be3 Nf7 9. Qd2 c6 10. 0-0-0 Qa5 11. Kb1 Be6 12. d5 cxd5 13. Nxd5 Qxd5 14. Qxd5 Bxd5 15. Rxd5 Nc6 16. Bb5 a6 17. Ba4 Rc8 18. Bb6 Nd6 19. Rhd1 h5 20. Nd4 hxg4 21. hxg4 Rh4 22. Rc5 Kd7 23. f3 Rh2 24. Re1 e5 25. Nxc6 bxc6 26. Rd1 Bf8 27. Rc3 Rh3 28. Bc5 Ke6 29. Bb3+ Kd7 30. Rcd3 1-0

[Event "GER-ch Net blitz qual4"]
[Site "Playchess.com INT"]
[Date "2020.03.23"]
[Round "7"]
[White "Westphal, Wolfgang"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2153"]
[BlackElo "2098"]
[PlyCount "73"]
[EventDate "2020.03.23"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 d5 2. d4 dxe4 3. Nc3 g6 4. Nxe4 Bg7 5. Nf3 Nh6 6. c3 Nf5 7. Bd3 b6 8. Ng3 Nd6 9. 0-0 Nd7 10. Bf4 Bb7 11. Ne5 0-0 12. Qd2 c5 13. Nxd7 Qxd7 14. dxc5 bxc5 15. Rad1 Qa4 16. a3 Rad8 17. Qe2 Rfe8 18. Be3 Qa5 19. Bf4 Qa4 20. Be5 f6 21. Bxd6 exd6 22. Qc2 Qxc2 23. Bxc2 f5 24. Rfe1 Kf8 25. Ba4 Rxe1+ 26. Rxe1 d5 27. Rd1 d4 28. cxd4 cxd4 29. Ne2 Ke7 30. Nf4 Be4 31. f3 Bb7 32. Nd3 Ba6 33. Nb4 Bb7 34. Bc6 Ba8 35. Bxa8 Rxa8 36. Kf1 Rb8 37. Nc6+ 1-0

[Event "GER-ch Net blitz qual3"]
[Site "Playchess.com INT"]
[Date "2020.03.21"]
[Round "3"]
[White "Cherny, Andrey"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2188"]
[BlackElo "2098"]
[PlyCount "37"]
[EventDate "2020.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. Nf3 d5 2. e3 c6 3. b3 Bf5 4. Bb2 Nf6 5. d4 e6 6. Bd3 Bxd3 7. Qxd3 Nbd7 8. Nbd2 Be7 9. Ne5 Nxe5 10. dxe5 Nd7 11. 0-0 0-0 12. f4 Nc5 13. Qe2 f5 14. g4 Ne4 15. Nxe4 dxe4 16. Rad1 Qc7 17. Qc4 fxg4 18. Qxe6+ Kh8 19. Rd7 1-0

[Event "GER-ch Net blitz qual3"]
[Site "Playchess.com INT"]
[Date "2020.03.21"]
[Round "6"]
[White "Dehn, Marcus"]
[Black "Dauner, Benedikt"]
[Result "1/2-1/2"]
[ECO "A49"]
[WhiteElo "2098"]
[BlackElo "2133"]
[PlyCount "198"]
[EventDate "2020.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 g6 2. g3 Bg7 3. Bg2 d6 4. Nf3 Nf6 5. 0-0 0-0 6. c3 c6 7. Nbd2 Nbd7 8. e4 e5 9. dxe5 dxe5 10. Qe2 Qe7 11. Nc4 b5 12. Na5 Nb8 13. a4 Ba6 14. Rd1 b4 15. Qe3 Qc7 16. Nb3 bxc3 17. bxc3 Bc4 18. Nc5 Nbd7 19. Ba3 Rfd8 20. Nd2 Nxc5 21. Qxc5 Bd3 22. f3 Qb6 23. a5 Qb5 24. c4 Qxc5+ 25. Bxc5 Bf8 26. Be3 Bb4 27. a6 c5 28. Bf1 Bc3 29. Ra3 Bxd2 30. Rxd2 Bxf1 31. Kxf1 Rxd2 32. Bxd2 Rb8 33. Be3 Nd7 34. Rd3 Rb1+ 35. Kg2 Nb6 36. Bxc5 Nxc4 37. Bxa7 Ra1 38. Rd8+ Kg7 39. Bb8 Rxa6 40. Rc8 Ra4 41. Rc5 f6 42. Rc7+ Kg8 43. f4 Nd2 44. fxe5 fxe5 45. Re7 Ra2 46. Kh3 Nxe4 47. Bxe5 Nf2+ 48. Kh4 Ra4+ 49. Kg5 Rg4+ 50. Kf6 Ne4+ 51. Ke6 Ng5+ 52. Kd7 h5 53. Rg7+ Kf8 54. Rxg6 Nf7 55. Rf6 Re4 56. Ba1 Re2 57. Rf5 Re1 58. Rxh5 Rd1+ 59. Kc6 Rxa1 60. h4 Rb1 61. Kd5 Kg7 62. Rf5 Kg6 63. Rf3 Re1 64. Kd4 Nh6 65. Ra3 Kh5 66. Ra6 Nf5+ 67. Kd3 Nxg3 68. Ra5+ Kxh4 69. Ra8 Kg4 70. Kd2 Re7 71. Kd3 Kf4 72. Rf8+ Nf5 73. Kd2 Rd7+ 74. Kc3 Ke4 75. Re8+ Kd5 76. Rf8 Nd6 77. Rh8 Rg7 78. Rh5+ Kc6 79. Rh6 Rg3+ 80. Kd4 Rg4+ 81. Ke5 Rf4 82. Kxf4 Kd5 83. Kf3 Nc4 84. Rh5+ Kd4 85. Rh4+ Kd5 86. Rh8 Ne5+ 87. Kf4 Nd3+ 88. Kf5 Nc5 89. Rd8+ Kc4 90. Ke5 Nd3+ 91. Kd6 Kd4 92. Ke6+ Ke4 93. Ra8 Nc5+ 94. Kd6 Nd3 95. Ra4+ Kf5 96. Rd4 Nf4 97. Rd1 Ke4 98. Re1+ Kd4 99. Ke7 Nd3 1/2-1/2

[Event "GER-ch Net blitz qual3"]
[Site "Playchess.com INT"]
[Date "2020.03.21"]
[Round "7"]
[White "Dehn, Marcus"]
[Black "Gugler, Giorgio"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2098"]
[BlackElo "1312"]
[PlyCount "71"]
[EventDate "2020.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. g3 d5 2. Bg2 Nf6 3. Nf3 Nc6 4. d4 e6 5. 0-0 Bd6 6. c3 0-0 7. Nbd2 Rb8 8. Re1 h6 9. e4 dxe4 10. Nxe4 Nxe4 11. Rxe4 f5 12. Re2 Ne7 13. b3 c5 14. dxc5 Bxc5 15. Qxd8 Rxd8 16. Bf4 Bd6 17. Rd1 Nd5 18. Bxd6 Rxd6 19. c4 Nc3 20. Rxd6 Nxe2+ 21. Kf1 b6 22. Rd8+ Kh7 23. Kxe2 a6 24. Ke3 b5 25. c5 a5 26. Ne5 b4 27. Nc6 Ra8 28. Ne7 a4 29. Bxa8 axb3 30. axb3 Ba6 31. c6 Bf1 32. c7 e5 33. c8Q f4+ 34. gxf4 exf4+ 35. Kxf4 Bh3 36. Rh8# 1-0

[Event "GER-ch Net blitz qual3"]
[Site "Playchess.com INT"]
[Date "2020.03.21"]
[Round "9"]
[White "Dehn, Marcus"]
[Black "Kahlert, Thomas"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2098"]
[BlackElo "2147"]
[PlyCount "63"]
[EventDate "2020.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 0-0 5. h3 d5 6. Be2 c5 7. c3 Nc6 8. 0-0 Nd7 9. Bh2 e5 10. dxe5 Ndxe5 11. Nbd2 h6 12. Nb3 b6 13. a4 Be6 14. a5 Nc4 15. axb6 axb6 16. Bxc4 dxc4 17. Qxd8 Rfxd8 18. Nbd2 b5 19. Ne4 Na5 20. Bc7 Nb3 21. Bxd8 Rxa1 22. Rxa1 Nxa1 23. Nxc5 Bd5 24. Nd4 Nb3 25. Ncxb3 cxb3 26. Nxb5 Be5 27. Bb6 f5 28. Nd4 f4 29. Nf3 Bd6 30. exf4 Bxf4 31. Be3 Be5 32. Nxe5 1-0

[Event "GER-ch Net blitz qual3"]
[Site "Playchess.com INT"]
[Date "2020.03.21"]
[Round "1"]
[White "Dehn, Marcus"]
[Black "Vogel, Roven"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2098"]
[BlackElo "2456"]
[PlyCount "46"]
[EventDate "2020.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. e3 e6 3. Bd3 d5 4. f4 c5 5. c3 Bd6 6. Nf3 0-0 7. 0-0 b6 8. Qe2 Bb7 9. Bd2 Ne4 10. Bxe4 dxe4 11. Ne5 f6 12. Ng4 Qc7 13. Rd1 Ba6 14. Qe1 Nc6 15. a4 Na5 16. Na3 Nb3 17. Ra2 Bd3 18. Nb5 Qd7 19. Nxd6 Qxd6 20. Nf2 Bc2 21. Ra3 f5 22. Bc1 Bxd1 23. Qxd1 c4 0-1

[Event "GER-ch Net blitz qual3"]
[Site "Playchess.com INT"]
[Date "2020.03.21"]
[Round "4"]
[White "Dehn, Marcus"]
[Black "Zhou, Lepu Coco"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2098"]
[BlackElo "1872"]
[PlyCount "88"]
[EventDate "2020.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. e3 g6 3. f4 Bg7 4. Nf3 0-0 5. Bd3 d6 6. 0-0 Nbd7 7. Bd2 c5 8. c3 a6 9. a4 b6 10. Be1 Bb7 11. Nbd2 d5 12. Bh4 c4 13. Bc2 b5 14. Ne5 Qc7 15. Qf3 e6 16. g4 Nxe5 17. fxe5 Ne8 18. e4 f6 19. exf6 Nxf6 20. Qg3 Qxg3+ 21. Bxg3 Nxg4 22. Rfe1 Bh6 23. Nf1 Rf3 24. h3 Ne3 25. Nxe3 Rxg3+ 26. Ng2 Rf8 27. e5 Rxh3 28. axb5 axb5 29. Ra7 Bc6 30. Rc7 Be8 31. Bd1 Rg3 32. Kh2 Rg5 33. Kh3 Rf2 34. Bg4 Rxg4 35. Kxg4 Rxg2+ 36. Kh3 Rxb2 37. Re7 Bf7 38. Rf1 Rc2 39. Rfxf7 Rxc3+ 40. Kg2 Bg5 41. Rg7+ Kf8 42. Rgf7+ Kg8 43. Rg7+ Kf8 44. Rgf7+ Kg8 1/2-1/2

[Event "GER-ch Net blitz qual3"]
[Site "Playchess.com INT"]
[Date "2020.03.21"]
[Round "5"]
[White "Hartewig, Anja"]
[Black "Dehn, Marcus"]
[Result "0-1"]
[ECO "E62"]
[WhiteElo "1757"]
[BlackElo "2098"]
[PlyCount "100"]
[EventDate "2020.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nf3 d6 4. g3 c6 5. Bg2 Nf6 6. 0-0 0-0 7. Nc3 Qa5 8. Qc2 Qh5 9. e4 Bh3 10. e5 Ne8 11. Bg5 Bxg2 12. Kxg2 f6 13. exf6 exf6 14. Bf4 g5 15. Be3 g4 16. Nh4 f5 17. Bf4 Bxd4 18. Rad1 Bf6 19. Qxf5 Qxf5 20. Nxf5 Bxc3 21. Nh6+ Kg7 22. bxc3 Rxf4 23. gxf4 Kxh6 24. Rfe1 Na6 25. Re6+ Kg7 26. Re7+ Kg6 27. Rxb7 Nc5 28. Re7 a5 29. Rde1 Nf6 30. Rc7 Ra6 31. Ree7 Rb6 32. Rg7+ Kf5 33. Rg5+ Kxf4 34. Rgg7 a4 35. Rcf7 Nce4 36. Rxh7 Rb2 37. Kg1 Rxa2 38. Rh4 a3 39. h3 Kg5 40. Rh8 Rxf2 41. hxg4 a2 42. Ra7 Rb2 43. Rha8 Nxc3 44. Ra5+ Kxg4 45. Ra3 Nfe4 46. Rg8+ Kf3 47. Rf8+ Ke3 48. Re8 Kd4 49. Rh8 Rb1+ 50. Kg2 a1Q 0-1

[Event "GER-ch Net blitz qual3"]
[Site "Playchess.com INT"]
[Date "2020.03.21"]
[Round "2"]
[White "Hierl, Johannes"]
[Black "Dehn, Marcus"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1363"]
[BlackElo "2098"]
[PlyCount "90"]
[EventDate "2020.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 c6 3. e3 Bf5 4. Bd3 Bxd3 5. Qxd3 Nf6 6. c3 e6 7. Nd2 Be7 8. Ngf3 Nbd7 9. Ne5 Nxe5 10. Bxe5 0-0 11. f4 Nd7 12. f5 Nxe5 13. dxe5 exf5 14. Qxf5 Qc8 15. 0-0 Qxf5 16. Rxf5 Bc5 17. Re1 Rae8 18. Nb3 Bb6 19. Kh1 g6 20. Rf3 Rxe5 21. Nd4 Bxd4 22. cxd4 Re4 23. Kg1 Rfe8 24. Kf2 f5 25. g3 R8e6 26. Rf4 Kf7 27. Rxe4 Rxe4 28. b4 Ke7 29. Ke2 Kd6 30. Rc1 b6 31. Kd3 Re7 32. a4 Rc7 33. Rc2 c5 34. bxc5+ bxc5 35. Rxc5 Rxc5 36. dxc5+ Kxc5 37. Kc3 a5 38. Kb3 d4 39. exd4+ Kxd4 40. Kc2 Kc4 41. Kb2 Kb4 42. Ka2 Kxa4 43. Kb2 Kb4 44. Ka2 Kc4 45. Ka3 Kd4 0-1

[Event "GER-ch Net blitz qual3"]
[Site "Playchess.com INT"]
[Date "2020.03.21"]
[Round "8"]
[White "Kornitzky, Tino"]
[Black "Dehn, Marcus"]
[Result "1/2-1/2"]
[ECO "A42"]
[WhiteElo "2137"]
[BlackElo "2098"]
[PlyCount "84"]
[EventDate "2020.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 c6 5. Nf3 a6 6. Be2 b5 7. a3 Nf6 8. 0-0 bxc4 9. Bxc4 d5 10. exd5 cxd5 11. Bd3 0-0 12. Bf4 Bg4 13. h3 Bxf3 14. Qxf3 Nc6 15. Ne2 a5 16. Rac1 Qb6 17. Rc2 Nxd4 18. Nxd4 Qxd4 19. Rfc1 a4 20. Bf1 e5 21. Be3 Qe4 22. Qxe4 Nxe4 23. Rc7 d4 24. f3 Ng3 25. Bd2 Nxf1 26. Kxf1 Rfb8 27. Bb4 Bf8 28. Bxf8 Kxf8 29. Re1 Rxb2 30. Rxe5 Re8 31. Rxe8+ Kxe8 32. Rc4 Rb1+ 33. Ke2 Rb2+ 34. Kf1 Rb1+ 35. Kf2 Rb2+ 36. Kg3 d3 37. Rxa4 d2 38. Re4+ Kf8 39. Rd4 Ra2 40. Rd3 f5 41. a4 Rxa4 42. Rxd2 Ra7 1/2-1/2

[Event "Erfurt op-A 29th"]
[Site "Erfurt"]
[Date "2019.12.30"]
[Round "8"]
[White "Dehn, Marcus"]
[Black "Hoehn, Michael"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "2110"]
[BlackElo "2018"]
[PlyCount "50"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. e3 g6 3. Nf3 Bg7 4. Be2 0-0 5. 0-0 d6 6. Nbd2 Nbd7 7. Nc4 c6 8. a4 Qc7 9. a5 d5 10. Nce5 Nxe5 11. Nxe5 c5 12. Nd3 Nd7 13. Nf4 e6 14. h4 Rb8 15. Ra4 b6 16. axb6 axb6 17. c4 dxc4 18. dxc5 b5 19. Ra2 Nxc5 20. Bd2 Rd8 21. Qe1 Nb3 22. Bc3 e5 23. Nh3 Bxh3 24. gxh3 Qe7 25. h5 b4 0-1

[Event "Erfurt op-A 29th"]
[Site "Erfurt"]
[Date "2019.12.29"]
[Round "6"]
[White "Dehn, Marcus"]
[Black "Wichmann, Cliff"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2110"]
[BlackElo "2298"]
[PlyCount "80"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. d4 d5 2. e3 c5 3. c3 Nf6 4. Nd2 cxd4 5. exd4 Nc6 6. Bd3 Bg4 7. Qb3 Qc7 8. Ne2 e6 9. Nf1 Bd6 10. Nfg3 0-0 11. Bg5 Bxe2 12. Bxe2 Nd7 13. 0-0 Rab8 14. a4 Nb6 15. Bc1 Bf4 16. a5 Nc8 17. Bxf4 Qxf4 18. Qa4 Qc7 19. f4 f5 20. Bb5 Nd6 21. Bxc6 bxc6 22. b4 Qb7 23. Qd1 Qb5 24. Ra2 Rf6 25. a6 Qc4 26. Qa1 h6 27. h4 Rg6 28. Rf3 Rg4 29. Ra5 Rb6 30. Nf1 Qe2 31. Rf2 Qd3 32. Rd2 Qe4 33. Qd1 Nc4 34. g3 Nxa5 35. Re2 Qf3 36. Qe1 Nc4 37. Rf2 Rxg3+ 38. Nxg3 Qxg3+ 39. Kf1 Ne3+ 40. Ke2 Ng4 0-1

[Event "Erfurt op-A 29th"]
[Site "Erfurt"]
[Date "2019.12.29"]
[Round "7"]
[White "Kroneder, Christian"]
[Black "Dehn, Marcus"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2045"]
[BlackElo "2110"]
[PlyCount "13"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. Nc3 c6 4. e4 d6 5. Qd2 Qa5 6. Nf3 Nbd7 7. Bd3 1/2-1/2

[Event "Erfurt op-A 29th"]
[Site "Erfurt"]
[Date "2019.12.28"]
[Round "4"]
[White "Dehn, Marcus"]
[Black "Arnhold, Steffi"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "2110"]
[BlackElo "2018"]
[PlyCount "81"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. e3 d5 3. Bd3 c5 4. c3 Nc6 5. Nf3 Bg4 6. h3 Bh5 7. Qa4 Qc7 8. Bb5 Nd7 9. Nbd2 e6 10. 0-0 Be7 11. Ne5 Ndxe5 12. dxe5 0-0 13. f4 f5 14. exf6 Rxf6 15. Nf3 Bd6 16. Bd2 Raf8 17. Be1 Bxf3 18. Rxf3 e5 19. Bh4 R6f7 20. Qd1 d4 21. Bc4 e4 22. Rg3 d3 23. Qh5 Kh8 24. Bxf7 Qxf7 25. Qg4 c4 26. b3 Be7 27. f5 Bxh4 28. Qxh4 Qxf5 29. Rg4 d2 30. Rf4 Qc8 31. Rxf8+ Qxf8 32. Qxe4 Qd8 33. Rd1 h6 34. Qc2 cxb3 35. axb3 Qb6 36. Kf2 Qd8 37. Qxd2 Qh4+ 38. Kg1 Qg5 39. Qd3 a6 40. b4 Qg3 41. Rf1 1-0

[Event "Erfurt op-A 29th"]
[Site "Erfurt"]
[Date "2019.12.28"]
[Round "5"]
[White "Lagunow, Alexander"]
[Black "Dehn, Marcus"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2374"]
[BlackElo "2110"]
[PlyCount "87"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 g6 5. Bf4 Bg7 6. Qd2 c6 7. Nf3 Be6 8. Ne4 Bd5 9. Qe3 Bxe4 10. Qxe4 Nf6 11. Qd3 Nbd7 12. Be2 0-0 13. 0-0 c5 14. dxc5 Nxc5 15. Qa3 Ne6 16. Be5 Re8 17. Bb5 Rf8 18. Rad1 Qb6 19. Bc4 Rfc8 20. Bxe6 Qxe6 21. Rfe1 Re8 22. Bc3 Qf5 23. Qb3 b6 24. Re5 Qc8 25. Ng5 e6 26. Re2 Qc6 27. Bxf6 Bxf6 28. Ne4 Bg7 29. Qf3 Qc7 30. Nf6+ Bxf6 31. Qxf6 Qe7 32. Qxe7 Rxe7 33. c4 Rc8 34. b3 Rcc7 35. Red2 e5 36. Kf1 f5 37. Ke2 Kf7 38. Ke3 Ke6 39. Rd6+ Kf7 40. h4 Re6 41. Rd8 Re8 42. Rxe8 Kxe8 43. Rd5 Rc5 44. Rd2 1/2-1/2

[Event "Erfurt op-A 29th"]
[Site "Erfurt"]
[Date "2019.12.27"]
[Round "2"]
[White "Dehn, Marcus"]
[Black "Hansson, Hakan"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2110"]
[BlackElo "1961"]
[PlyCount "49"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. d4 d5 2. e3 Nf6 3. Bd3 e6 4. f4 c5 5. c3 Nc6 6. Nf3 Ne4 7. Bxe4 dxe4 8. Ne5 Nxe5 9. fxe5 Qh4+ 10. g3 Qh3 11. Qe2 Bd7 12. Nd2 Bc6 13. Rf1 Be7 14. b3 0-0 15. dxc5 Bxc5 16. b4 Be7 17. b5 Bd7 18. Nxe4 a6 19. b6 Rac8 20. c4 Rxc4 21. Rf4 Rcc8 22. a4 Rfd8 23. Bd2 Bc6 24. Nc3 Bg5 25. Rf2 1/2-1/2

[Event "Erfurt op-A 29th"]
[Site "Erfurt"]
[Date "2019.12.27"]
[Round "3"]
[White "Guenther, Thomas"]
[Black "Dehn, Marcus"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "1980"]
[BlackElo "2110"]
[PlyCount "130"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. e3 d6 3. d4 g6 4. Be2 Bg7 5. b3 0-0 6. Bb2 Ne4 7. Nbd2 Nxd2 8. Qxd2 c5 9. c4 cxd4 10. Bxd4 Nc6 11. Bxg7 Kxg7 12. 0-0 Qb6 13. Rfd1 h6 14. Rac1 Kh7 15. h3 a5 16. Nd4 Qc5 17. Nb5 Qg5 18. Kh2 Qh4 19. Bf1 Ne5 20. Qe2 Bg4 21. f3 Be6 22. Rd4 Qh5 23. Nc7 Rac8 24. Nxe6 fxe6 25. f4 Qxe2 26. Bxe2 Nc6 27. Rd2 e5 28. Bg4 Rcd8 29. g3 b6 30. Kg2 e4 31. Be6 Nb4 32. a3 Nd3 33. Rb1 Nc5 34. Bg4 h5 35. Be2 Ra8 36. b4 axb4 37. axb4 Nd7 38. Rd4 Nf6 39. Rd2 Ra3 40. Kf2 g5 41. Rdb2 h4 42. Rb3 hxg3+ 43. Kxg3 gxf4+ 44. exf4 Rg8+ 45. Kh4 Ra2 46. R1b2 Rxb2 47. Rxb2 Rg2 48. Rc2 Kh6 49. Bd1 Rg1 50. Bg4 Nh7 51. Bf5 Rf1 52. Bxh7 Rxf4+ 53. Kg3 Rf3+ 54. Kh4 Kxh7 55. Re2 Rb3 56. Rxe4 Rxb4 57. Rxe7+ Kg8 58. Kg5 Rxc4 59. Rb7 Rc6 60. h4 Rc1 61. Rxb6 Rg1+ 62. Kf6 Kh7 63. h5 Kh6 64. Rb8 Rf1+ 65. Ke6 Kxh5 1/2-1/2

[Event "GER-ch Seniors 50 31st"]
[Site "Radebeul"]
[Date "2019.05.04"]
[Round "9"]
[White "Dehn, Marcus"]
[Black "Schatz, Christian"]
[Result "1/2-1/2"]
[ECO "A12"]
[WhiteElo "2110"]
[BlackElo "2150"]
[PlyCount "28"]
[EventDate "2019.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. g3 d5 2. Bg2 Nf6 3. Nf3 c6 4. 0-0 Bg4 5. c4 e6 6. b3 Be7 7. Bb2 0-0 8. h3 Bh5 9. g4 Bg6 10. Ne5 Nbd7 11. Nxg6 hxg6 12. d3 b5 13. Nd2 Rb8 14. cxb5 cxb5 1/2-1/2

[Event "GER-ch Seniors 50 31st"]
[Site "Radebeul"]
[Date "2019.05.03"]
[Round "8"]
[White "Held, Peter"]
[Black "Dehn, Marcus"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2179"]
[BlackElo "2110"]
[PlyCount "80"]
[EventDate "2019.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 g6 5. Bc4 Bg7 6. Nf3 Nh6 7. h3 Nf5 8. Ne2 Nc6 9. c3 0-0 10. Bf4 Nd6 11. Bb3 Na5 12. Bc2 Bf5 13. 0-0 Bxc2 14. Qxc2 e6 15. Ng3 Nc6 16. Rfe1 Ne7 17. Bg5 c6 18. Qd2 Qe8 19. Nh4 Nd5 20. Qe2 b5 21. Rad1 Rc8 22. Qg4 Qd7 23. Nf3 f5 24. Qh4 f4 25. Ne4 Nf5 26. Qg4 h5 27. Ne5 Bxe5 28. Qe2 Bd6 29. g4 f3 30. Qxf3 Nxd4 31. Qd3 Nf3+ 32. Kh1 Nxe1 33. Rxe1 Be7 34. Bh6 hxg4 35. hxg4 Rf7 36. Ng5 Rf6 37. Ne4 Kf7 38. Nxf6 Nxf6 39. Qf3 Qd5 40. Kg2 g5 0-1

[Event "GER-ch Seniors 50 31st"]
[Site "Radebeul"]
[Date "2019.05.02"]
[Round "7"]
[White "Dehn, Marcus"]
[Black "Steiger, Michael"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2110"]
[BlackElo "1982"]
[PlyCount "80"]
[EventDate "2019.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. g3 g6 2. Bg2 Bg7 3. Nf3 c5 4. 0-0 Nc6 5. c3 Nf6 6. d3 0-0 7. Nbd2 Rb8 8. Nb3 d6 9. d4 cxd4 10. Nfxd4 Na5 11. Nxa5 Qxa5 12. Bd2 Qh5 13. e4 Qxd1 14. Rfxd1 a6 15. f3 Nd7 16. Be3 Ne5 17. b3 Nc6 18. Nxc6 bxc6 19. Bd4 c5 20. Bxg7 Kxg7 21. Bf1 Kf6 22. Bc4 g5 23. Kf2 a5 24. Rd2 Be6 25. Bd5 Rb6 26. Rad1 Rfb8 27. Ke3 a4 28. bxa4 Ra6 29. f4 Rxa4 30. fxg5+ Ke5 31. Kf3 Ra3 32. Rc1 Rb4 33. h4 Rd4 34. Re2 Rd3+ 35. Re3 Bg4+ 36. Kxg4 Rxe3 37. Rf1 e6 38. Bb7 Rxa2 39. Rxf7 Rxe4+ 40. Kh5 Re3 1/2-1/2

[Event "GER-ch Seniors 50 31st"]
[Site "Radebeul"]
[Date "2019.05.01"]
[Round "6"]
[White "Kierzek, Mira"]
[Black "Dehn, Marcus"]
[Result "1/2-1/2"]
[ECO "E11"]
[WhiteElo "1978"]
[BlackElo "2110"]
[PlyCount "110"]
[EventDate "2019.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 d6 7. Nc3 0-0 8. e4 e5 9. d5 a5 10. Be2 Nbd7 11. 0-0 Nc5 12. Qc2 a4 13. Nd2 Ne8 14. Rae1 g6 15. f4 exf4 16. Rxf4 f5 17. Ref1 Rf6 18. R4f2 fxe4 19. Ndxe4 Rxf2 20. Rxf2 Nxe4 21. Qxe4 Qxe4 22. Nxe4 Bf5 23. Bf3 Bxe4 24. Bxe4 Kg7 25. Bc2 Nf6 26. Re2 Kf7 27. h3 Nd7 28. Bd1 b6 29. Rf2+ Ke7 30. Rc2 Ne5 31. Be2 Rf8 32. Rc3 Rf4 33. Rc2 Re4 34. Kf2 Kd8 35. Rc3 Nd7 36. Bd1 Nc5 37. Bc2 Re7 38. Re3 Rxe3 39. Kxe3 Ke7 40. Kf4 Kf6 41. h4 h6 42. g3 g5+ 43. hxg5+ hxg5+ 44. Kg4 Nd7 45. b3 Ne5+ 46. Kh3 axb3 47. Bxb3 Nf3 48. Bd1 Nd2 49. Be2 Ne4 50. Kg4 Nc5 51. Bf1 Nd7 52. Kh5 Ne5 53. Be2 Kf5 54. Bf1 Kf6 55. Be2 Kf5 1/2-1/2

[Event "GER-ch Seniors 50 31st"]
[Site "Radebeul"]
[Date "2019.04.30"]
[Round "5"]
[White "Dehn, Marcus"]
[Black "Schober, Ralf"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2110"]
[BlackElo "2070"]
[PlyCount "39"]
[EventDate "2019.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. g3 c5 2. Bg2 Nc6 3. Nf3 g6 4. 0-0 Bg7 5. c3 Qb6 6. d3 d6 7. Nbd2 Qc7 8. a4 e6 9. e4 Nge7 10. Re1 0-0 11. Nf1 Rb8 12. Be3 b6 13. d4 Ba6 14. Rb1 c4 15. d5 exd5 16. exd5 Ne5 17. Nxe5 Bxe5 18. Bg5 Rfe8 19. Rxe5 f6 20. Bxf6 1-0

[Event "GER-ch Seniors 50 31st"]
[Site "Radebeul"]
[Date "2019.04.29"]
[Round "4"]
[White "Lauckner, Joerg"]
[Black "Dehn, Marcus"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "1975"]
[BlackElo "2110"]
[PlyCount "76"]
[EventDate "2019.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 b6 5. e3 Bb7 6. Nge2 0-0 7. a3 Be7 8. f3 d5 9. cxd5 exd5 10. Ng3 Re8 11. Bd3 c5 12. Nf5 Bf8 13. dxc5 bxc5 14. 0-0 Nbd7 15. e4 c4 16. Be2 Bc5+ 17. Kh1 d4 18. b4 d3 19. Bxd3 cxd3 20. Qxd3 Bf8 21. Rd1 Qb8 22. Bg5 a5 23. b5 Nc5 24. Qe3 Nfd7 25. Bf4 Ne5 26. Nd5 Ncd7 27. Nde7+ Bxe7 28. Rxd7 Bf8 29. Rad1 Qc8 30. Bxe5 Rxe5 31. Qb6 Rb8 32. Rc7 Qe6 33. Qa7 Re8 34. Rxb7 Bc5 35. Qa6 Qxf5 36. Qxa5 Qf4 37. Qc7 h6 38. a4 Qf6 1/2-1/2

[Event "GER-ch Seniors 50 31st"]
[Site "Radebeul"]
[Date "2019.04.28"]
[Round "3"]
[White "Dehn, Marcus"]
[Black "Wagner, Bernd1"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2110"]
[BlackElo "1948"]
[PlyCount "44"]
[EventDate "2019.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 c5 4. c3 cxd4 5. Nxd4 a6 6. h3 Bg7 7. e3 0-0 8. Bh2 d6 9. Be2 Nc6 10. 0-0 Bd7 11. Nd2 Re8 12. a4 Nxd4 13. exd4 Bc6 14. a5 e5 15. dxe5 dxe5 16. Nc4 Nd5 17. Bf3 e4 18. Be2 Qg5 19. Qc1 e3 20. f3 Nf4 21. Bxf4 Qxf4 22. Qe1 Bb5 1/2-1/2

[Event "GER-ch Seniors 50 31st"]
[Site "Radebeul"]
[Date "2019.04.27"]
[Round "2"]
[White "Steinert, Frank"]
[Black "Dehn, Marcus"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "1960"]
[BlackElo "2110"]
[PlyCount "99"]
[EventDate "2019.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Be3 d6 5. Be2 b5 6. a3 a6 7. f4 h5 8. Nf3 Nh6 9. Qd2 Nd7 10. e5 d5 11. e6 fxe6 12. Ne5 Nxe5 13. fxe5 Nf5 14. 0-0 c5 15. Bd3 cxd4 16. Bxf5 exf5 17. Qxd4 e6 18. h4 Qc7 19. Bf4 Qa7 20. Ne2 Qxd4+ 21. Nxd4 Bd7 22. c3 Kf7 23. Nf3 Rhc8 24. Ng5+ Kg8 25. g3 Rc4 26. Nf3 a5 27. Nd2 Rc7 28. Nb3 Ra6 29. Rfe1 Rc4 30. Nd2 Rc8 31. Nb3 Kf7 32. Kf2 Rc7 33. Bg5 Bf8 34. Be3 Be7 35. Bf4 Rc4 36. Nd2 Rxf4+ 37. gxf4 Bxh4+ 38. Ke2 Bxe1 39. Rxe1 b4 40. c4 dxc4 41. Nxc4 Bc6 42. Nd6+ Kg7 43. Rc1 bxa3 44. bxa3 Rb6 45. Kd3 h4 46. Nc8 Ra6 47. Ne7 Bg2 48. Rc7 g5 49. fxg5 h3 50. Nxf5+ 1/2-1/2

[Event "GER-ch Seniors 50 31st"]
[Site "Radebeul"]
[Date "2019.04.26"]
[Round "1"]
[White "Dehn, Marcus"]
[Black "Krien, Hartmut"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2110"]
[BlackElo "1853"]
[PlyCount "120"]
[EventDate "2019.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 0-0 5. Be2 Nh5 6. Bg5 c5 7. c3 Nc6 8. Nfd2 cxd4 9. Bxh5 dxc3 10. Nxc3 Qa5 11. Bxe7 Nxe7 12. Bf3 d5 13. 0-0 Bxc3 14. Nb3 Qb6 15. bxc3 Be6 16. Nd4 Rac8 17. Rb1 Qc7 18. Qb3 b6 19. Qa3 Nc6 20. Nxc6 Qxc6 21. Rfc1 Qd7 22. Rb4 Rc7 23. Rd4 Qb5 24. h4 h5 25. g3 Rfc8 26. Kg2 Qc5 27. Qa6 Qe7 28. Ra4 Kg7 29. Rd1 Qc5 30. Qd3 b5 31. Ra5 Rb8 32. a4 Qxc3 33. Qxc3+ Rxc3 34. axb5 Rc5 35. Be2 Rb7 36. Rda1 Rcc7 37. Bf3 Rb6 38. Rxa7 Rxa7 39. Rxa7 Rxb5 40. Ra4 Kf6 41. Rd4 Ke5 42. Rd2 Rc5 43. Bd1 Ra5 44. f4+ Kf6 45. Bf3 Rc5 46. Kf2 Ra5 47. Ke1 Ra1+ 48. Ke2 Ra5 49. Rc2 Ke7 50. Kd2 Kd6 51. Ke1 Ra1+ 52. Kf2 Ra5 53. Rd2 Rc5 54. e4 f6 55. f5 gxf5 56. exd5 Bxd5 57. Bxh5 Ke5 58. Re2+ Be4 59. Bf3 Rc2 60. Rxc2 Bxc2 1/2-1/2

[Event "GER-ch Seniors 50"]
[Site "Hamburg"]
[Date "2018.07.29"]
[Round "9"]
[White "Dehn, Marcus"]
[Black "Von Kiedrowski, Klemens"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "2099"]
[BlackElo "2084"]
[PlyCount "83"]
[EventDate "2018.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. e3 b6 3. Nf3 Bb7 4. Be2 e6 5. 0-0 c5 6. Bd2 Be7 7. Be1 0-0 8. Nbd2 Nc6 9. Nc4 b5 10. Nce5 d6 11. Nxc6 Bxc6 12. dxc5 dxc5 13. Ne5 Qc7 14. Nxc6 Qxc6 15. c4 Rad8 16. Qc2 b4 17. a3 a5 18. axb4 axb4 19. Bd2 Rd7 20. Rfd1 Rfd8 21. Be1 g6 22. Bf3 Qb6 23. Rxd7 Rxd7 24. Ra8+ Kg7 25. Qa4 e5 26. Bd5 Qc7 27. e4 Nh5 28. g3 Bg5 29. h4 Be7 30. Bd2 Nf6 31. Bc1 Nxd5 32. cxd5 f5 33. Qc2 Qb7 34. Ra5 Qb8 35. Qa4 Qc7 36. Kg2 Bd6 37. b3 Rf7 38. Qa1 h6 39. Ra8 Kh7 40. f4 g5 41. fxg5 Qd7 42. gxh6 1-0

[Event "GER-ch Seniors 50"]
[Site "Hamburg"]
[Date "2018.07.28"]
[Round "8"]
[White "Kierzek, Mira"]
[Black "Dehn, Marcus"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2029"]
[BlackElo "2099"]
[PlyCount "134"]
[EventDate "2018.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 g6 2. e4 Bg7 3. c3 d5 4. e5 c5 5. h3 h5 6. Nf3 Nc6 7. Bd3 Nh6 8. Bxh6 Rxh6 9. Qd2 Rh8 10. a4 Qb6 11. Na3 cxd4 12. cxd4 Qb4 13. Qxb4 Nxb4 14. Bb5+ Bd7 15. 0-0 Nc6 16. Nc2 Bh6 17. Nfe1 Rc8 18. Bxc6 Rxc6 19. Nb4 Rc4 20. Nxd5 Rxd4 21. Nc7+ Kd8 22. Nb5 Rd5 23. Nf3 Bxb5 24. axb5 Rxb5 25. Rxa7 Kc7 26. Ra2 Rd8 27. Re1 e6 28. Re4 Rdd5 29. g3 Ra5 30. Raa4 Rxa4 31. Rxa4 Rb5 32. Rc4+ Kb6 33. Rc2 Rc5 34. Re2 Kb5 35. Kg2 Ka4 36. Ne1 Rd5 37. f4 Bf8 38. Nf3 Bb4 39. Ng5 Rd7 40. Kf3 Kb3 41. Kg2 b5 42. Ne4 Ka2 43. g4 hxg4 44. hxg4 Kb1 45. Kg3 Rd3+ 46. Kg2 Kc1 47. Ng5 Bd2 48. Re4 Rd7 49. b4 Kc2 50. Kf3 Kb3 51. Re2 Bxb4 52. Rh2 Ba5 53. Rh7 Kc3 54. Nxf7 b4 55. Ke2 Kc2 56. Kf3 b3 57. Rh2+ Rd2 58. Rxd2+ Kxd2 59. Nd6 Kd3 60. f5 b2 61. fxg6 b1Q 62. Ne4 Qh1+ 63. Kf4 Qxe4+ 64. Kg5 Qxe5+ 65. Kh6 Bc3 66. g7 Qxg7+ 67. Kh5 Bf6 0-1

[Event "GER-ch Seniors 50"]
[Site "Hamburg"]
[Date "2018.07.27"]
[Round "7"]
[White "Dehn, Marcus"]
[Black "Toepper, Olaf"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2099"]
[BlackElo "1906"]
[PlyCount "135"]
[EventDate "2018.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. c3 Nc6 5. Nbd2 Bf5 6. Qb3 Qc8 7. dxc5 e6 8. Nd4 Bg6 9. Nxc6 Qxc6 10. e3 a6 11. Nf3 Nd7 12. Ne5 Nxe5 13. Bxe5 f6 14. Bd6 Bxd6 15. cxd6 0-0 16. Be2 Qxd6 17. 0-0 Rfd8 18. Rfd1 Qe7 19. Bf3 Bf7 20. Rd2 Rd6 21. Rad1 Rad8 22. g3 Qc7 23. Qb4 R6d7 24. a4 Rc8 25. e4 Qc5 26. Qxc5 Rxc5 27. exd5 exd5 28. Rd4 b5 29. Be2 Re7 30. Bf1 g6 31. axb5 axb5 32. Rb4 Rb7 33. Bg2 Re7 34. Kf1 Kf8 35. Ra1 Rec7 36. Ra8+ Ke7 37. Bf3 Be8 38. Be2 Rb7 39. Ke1 h5 40. Kd2 Bc6 41. Rc8 Kd7 42. Rg8 Ke6 43. Rxg6 Rc4 44. Rh6 Rxb4 45. cxb4 Be8 46. Bxh5 Bxh5 47. Rxh5 Rc7 48. Rh4 Ke5 49. Rf4 Rh7 50. h4 f5 51. Ke3 Rh8 52. Rd4 Rh7 53. f4+ Kd6 54. Rd2 Re7+ 55. Kf3 Re4 56. h5 Rxb4 57. h6 Ra4 58. h7 Ra8 59. Rh2 Rh8 60. g4 fxg4+ 61. Kxg4 d4 62. Kg5 Ke6 63. Kg6 d3 64. f5+ Ke5 65. f6 Ke6 66. Rh3 Rd8 67. Re3+ Kd7 68. Rxd3+ 1-0

[Event "GER-ch Seniors 50"]
[Site "Hamburg"]
[Date "2018.07.26"]
[Round "6"]
[White "Gottuk, Stefan"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2184"]
[BlackElo "2099"]
[PlyCount "103"]
[EventDate "2018.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 c5 3. e3 cxd4 4. exd4 Nc6 5. c3 e6 6. Bd3 Bd6 7. Bg3 Nge7 8. Nf3 Ng6 9. Qe2 Nf4 10. Bxf4 Bxf4 11. g3 Bd6 12. Ne5 g6 13. f4 Qe7 14. Nd2 Bd7 15. h4 0-0-0 16. 0-0-0 f6 17. Nxc6 Bxc6 18. Nf3 Be8 19. Rde1 Bf7 20. Qc2 Rdg8 21. Kb1 Qc7 22. Re2 Kb8 23. Rhe1 h6 24. Rg1 Rg7 25. a3 a6 26. Re3 Ka7 27. Ka1 Kb8 28. Qe2 Qc8 29. Rc1 Ka7 30. b4 Qd7 31. Kb2 Rc8 32. Nd2 g5 33. fxg5 hxg5 34. c4 Bb8 35. hxg5 Rxg5 36. c5 Bxg3 37. b5 Bh5 38. Qf1 e5 39. b6+ Ka8 40. Qxf6 Bf4 41. Rxe5 Bxd2 42. Rxg5 Bxc1+ 43. Kxc1 Qh3 44. Qf5 Qh1+ 45. Kb2 Qh2+ 46. Bc2 Rh8 47. Qxd5 Be8 48. Qd8+ Qb8 49. Qxb8+ Kxb8 50. Bb3 Kc8 51. Rg8 Rh2+ 52. Kc1 1-0

[Event "GER-ch Seniors 50"]
[Site "Hamburg"]
[Date "2018.07.25"]
[Round "5"]
[White "Dehn, Marcus"]
[Black "Raddatz, Michael"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2099"]
[BlackElo "2003"]
[PlyCount "133"]
[EventDate "2018.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 b5 3. c3 Bb7 4. a4 b4 5. c4 a5 6. Nd2 e6 7. e3 d6 8. Ngf3 Nbd7 9. Be2 Be7 10. h3 0-0 11. 0-0 Kh8 12. Bh2 c5 13. Nb3 Ne4 14. Nfd2 f5 15. Nxe4 Bxe4 16. f3 Bb7 17. Re1 Qb6 18. Kh1 Bh4 19. g3 Bg5 20. Bg1 Qc7 21. Kh2 cxd4 22. Nxd4 Nc5 23. Nb5 Qc6 24. Qxd6 Rad8 25. Qxc6 Bxc6 26. Nd4 Bb7 27. f4 Bf6 28. Rf1 Bxd4 29. exd4 Nb3 30. Rad1 Be4 31. Bd3 Bxd3 32. Rxd3 Nc5 33. Rd2 Nxa4 34. Re2 Nb6 35. b3 a4 36. d5 Nxc4 37. bxc4 exd5 38. Bc5 dxc4 39. Bxb4 Rfe8 40. Rxe8+ Rxe8 41. Rc1 Rc8 42. Kg2 Kg8 43. Kf3 Rb8 44. Bc3 Rd8 45. Rc2 Rd3+ 46. Kf2 a3 47. Be5 Rd1 48. Rxc4 a2 49. Ra4 Rd2+ 50. Ke3 Rg2 51. Kf3 Rh2 52. Ra7 h5 53. Rxg7+ Kf8 54. h4 Rh1 55. Rg5 Kf7 56. Rxf5+ Kg6 57. Rf6+ Kh7 58. Ra6 Rh2 59. Ke4 Rg2 60. f5 Rf2 61. Ra7+ Kg8 62. f6 Kf8 63. Bf4 Rf1 64. Rxa2 Kf7 65. Kf5 Rb1 66. Ra7+ Kg8 67. Kg6 1-0

[Event "GER-ch Seniors 50"]
[Site "Hamburg"]
[Date "2018.07.24"]
[Round "4"]
[White "Dehn, Marcus"]
[Black "Hueskens, Gerd"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2099"]
[BlackElo "1840"]
[PlyCount "142"]
[EventDate "2018.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. e3 g6 3. Nd2 Bg7 4. Nc4 0-0 5. Be2 d6 6. a4 Nbd7 7. Nf3 c6 8. 0-0 Qc7 9. a5 Re8 10. Qd3 e5 11. dxe5 dxe5 12. Qd6 Nd5 13. Qxc7 Nxc7 14. Nd6 Re7 15. Bd2 Ne8 16. Nc4 Nc7 17. Rfd1 h6 18. Nd6 Ne8 19. Nxc8 Rxc8 20. Bc3 Nc7 21. e4 a6 22. Bb4 c5 23. Be1 Nb8 24. Nd2 Nc6 25. c3 Ne6 26. Nc4 Rcc7 27. g3 Ng5 28. f3 Red7 29. Rxd7 Rxd7 30. Rd1 Rxd1 31. Bxd1 Bf8 32. Kg2 Ne6 33. Ba4 Ned8 34. Bd2 f6 35. Bb3 Kg7 36. Kf1 Be7 37. Ke2 g5 38. h3 Nf7 39. Ba4 Nfd8 40. g4 Kf7 41. h4 Kg6 42. h5+ Kf7 43. Kd3 Ke6 44. Be3 Kf7 45. Bf2 Kg7 46. Ne3 Kf7 47. Bb3+ Ke8 48. Nc4 Kf8 49. Kc2 Kg7 50. Ne3 Kh7 51. Nd5 Bd6 52. Nxf6+ Kh8 53. Ne8 Be7 54. Bg3 Kh7 55. Bd5 Nxa5 56. Bxe5 Nac6 57. Bg7 b5 58. c4 Nd4+ 59. Bxd4 cxd4 60. cxb5 axb5 61. Kd3 Bc5 62. Nc7 b4 63. b3 Kg7 64. e5 Bb6 65. Nb5 Kf8 66. Nxd4 Nf7 67. Bxf7 Kxf7 68. Nf5 Ke6 69. Ke4 Bc7 70. Nd4+ Kf7 71. Kd5 Bxe5 1-0

[Event "GER-ch Seniors 50"]
[Site "Hamburg"]
[Date "2018.07.23"]
[Round "3"]
[White "Herlan, Klaus Juergen"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "1952"]
[BlackElo "2099"]
[PlyCount "89"]
[EventDate "2018.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 f5 2. Bg5 d5 3. e3 Qd6 4. Nc3 c6 5. Bf4 Qd8 6. Bd3 e6 7. Nge2 Nf6 8. f3 Be7 9. e4 0-0 10. e5 Ne8 11. Qd2 b5 12. g3 Nd7 13. h4 Nc7 14. Nd1 Nb6 15. b3 a5 16. Bg5 Rf7 17. Nf2 Qf8 18. Bxe7 Qxe7 19. f4 c5 20. dxc5 Qxc5 21. c3 Na6 22. 0-0 Bd7 23. Rac1 Nc8 24. Kh2 Qb6 25. a3 Nc5 26. Bc2 Re7 27. Nd4 Na7 28. Nxf5 Ree8 29. Nd6 Rf8 30. c4 dxc4 31. bxc4 b4 32. axb4 Qxb4 33. Qd1 Be8 34. Nd3 Nxd3 35. Qxd3 Bg6 36. f5 exf5 37. Qd5+ Kh8 38. Rb1 Qc3 39. Rf2 f4 40. gxf4 Qe3 41. Rbf1 Rab8 42. Bxg6 Rxf4 43. Nf7+ Kg8 44. Ng5+ Kh8 45. Rxf4 1-0

[Event "GER-ch Seniors 50"]
[Site "Hamburg"]
[Date "2018.07.22"]
[Round "2"]
[White "Dehn, Marcus"]
[Black "Kolthoff, Siegmund"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2099"]
[BlackElo "2015"]
[PlyCount "51"]
[EventDate "2018.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. Nf3 c5 2. b3 Nf6 3. Bb2 e6 4. e3 Be7 5. d4 cxd4 6. Nxd4 0-0 7. a3 d5 8. Be2 Nbd7 9. 0-0 a6 10. c4 dxc4 11. Bxc4 Qc7 12. Nc3 Ne5 13. Be2 Rd8 14. Qb1 Neg4 15. Nf3 Bd7 16. h3 Nh6 17. Ne4 Nxe4 18. Qxe4 Bc6 19. Qc2 Rac8 20. Rac1 Qa5 21. b4 Qa4 22. Nd4 Qxc2 23. Rxc2 Bd5 24. Rfc1 Rxc2 25. Rxc2 Be4 26. Rc1 1/2-1/2

[Event "GER-ch Seniors 50"]
[Site "Hamburg"]
[Date "2018.07.21"]
[Round "1"]
[White "Bertram, Thomas"]
[Black "Dehn, Marcus"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1671"]
[BlackElo "2099"]
[PlyCount "68"]
[EventDate "2018.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nf3 Nxd5 4. Be2 Nf4 5. 0-0 Nxe2+ 6. Qxe2 Nc6 7. c3 e6 8. d4 Be7 9. Bf4 0-0 10. Nbd2 b6 11. Rad1 Bb7 12. Rfe1 Rc8 13. Ne4 Qd5 14. c4 Qf5 15. Qe3 Rfe8 16. a3 Na5 17. Ng3 Qc2 18. Ne5 Nxc4 19. Nxc4 Qxc4 20. Be5 f6 21. Nh5 fxe5 22. Qxe5 Bf8 23. Qg3 Kh8 24. Rc1 Qd5 25. Nf4 Qxd4 26. Nxe6 Qf6 27. Nxf8 Rxe1+ 28. Rxe1 Rxf8 29. Qe3 h6 30. h3 Qxb2 31. Re2 Qb1+ 32. Kh2 Qg6 33. f3 Qd6+ 34. g3 Rxf3 0-1

[Event "Lueneburg NSV rapid op"]
[Site "Lueneburg"]
[Date "2018.07.14"]
[Round "3"]
[White "Buchenau, Frank"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2275"]
[BlackElo "2099"]
[PlyCount "20"]
[EventDate "2018.07.14"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 185 Extra"]
[Source "ChessBase"]
[SourceDate "2018.07.29"]
[SourceVersion "1"]
[SourceVersionDate "2018.07.29"]
[SourceQuality "1"]

1. e4 b6 2. d4 Bb7 3. Bd3 Nc6 4. c3 e5 5. Nf3 exd4 6. cxd4 Nb4 7. 0-0 Nxd3 8. Qxd3 Nf6 9. Nc3 Be7 10. d5 d6 1-0

[Event "Lueneburg NSV rapid op"]
[Site "Lueneburg"]
[Date "2018.07.14"]
[Round "5"]
[White "Sriram, Jha"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "2409"]
[BlackElo "2099"]
[PlyCount "52"]
[EventDate "2018.07.14"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 185 Extra"]
[Source "ChessBase"]
[SourceDate "2018.07.29"]
[SourceVersion "1"]
[SourceVersionDate "2018.07.29"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 c6 5. Be3 a6 6. a4 a5 7. Nf3 Nf6 8. Be2 0-0 9. 0-0 Na6 10. h3 Nd7 11. Qd2 Qb6 12. Bh6 Qb3 13. h4 Re8 14. Bxg7 Kxg7 15. h5 Nb6 16. Ra3 Qb4 17. h6+ Kg8 18. Qc2 Bg4 19. Rb3 Bxf3 20. gxf3 d5 21. Rxb4 axb4 22. Nd1 e5 23. a5 Nxc4 24. Bxc4 dxc4 25. Qxc4 exd4 26. Qxd4 Nb8 1-0

[Event "Groningen op-A 55th"]
[Site "Groningen"]
[Date "2017.12.30"]
[Round "9"]
[White "Pel, Bonno"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "E72"]
[WhiteElo "2247"]
[BlackElo "2120"]
[PlyCount "79"]
[EventDate "2017.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. g3 d6 2. Bg2 g6 3. e4 Bg7 4. d4 Nd7 5. Ne2 Ngf6 6. 0-0 e5 7. d5 0-0 8. c4 a5 9. Nbc3 Nb6 10. b3 a4 11. Rb1 axb3 12. axb3 Nfd7 13. f3 h5 14. Be3 Kh7 15. Qd2 Nc5 16. f4 f6 17. Qc2 Bd7 18. f5 Bh6 19. fxg6+ Kxg6 20. Bxh6 Kxh6 21. b4 Na6 22. Nd1 Kg7 23. Ne3 Nc8 24. Kh1 Ne7 25. Ng1 h4 26. Bh3 hxg3 27. Qg2 Bxh3 28. Nxh3 Rf7 29. Rf3 Qh8 30. Qxg3+ Kf8 31. Rbf1 Ke8 32. Ng5 Rf8 33. Ne6 Rg8 34. Ng4 f5 35. exf5 Kd7 36. f6 Qh5 37. h3 Rxg4 38. Qxg4 Qxg4 39. hxg4 Ng6 40. Rh3 1-0

[Event "Groningen op-A 55th"]
[Site "Groningen"]
[Date "2017.12.29"]
[Round "8"]
[White "Dehn, Marcus"]
[Black "De Bock, Thijs"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2120"]
[BlackElo "2019"]
[PlyCount "74"]
[EventDate "2017.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nd2 d5 3. e3 Bf5 4. Bd3 Bg6 5. Ngf3 e6 6. Ne5 Bd6 7. Nxg6 hxg6 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 c6 11. g3 Nd7 12. c3 Qe7 13. f4 0-0-0 14. Qa4 Kb8 15. Bd2 g5 16. fxg5 e5 17. 0-0-0 exd4 18. Qxd4 Nc5 19. Bc2 Bxg3 20. Qe3 Be5 21. h4 f6 22. gxf6 gxf6 23. h5 Ne6 24. Qf2 Qc7 25. Rdf1 Rxd2 26. Qxd2 Bf4 27. Rxf4 Nxf4 28. h6 Qe5 29. Qh2 Ka8 30. Kb1 a6 31. Rf1 Ne6 32. Qxe5 fxe5 33. h7 Nf8 34. Rf7 Ka7 35. Rg7 Nxh7 36. Rxh7 Re8 37. Be4 Kb6 1-0

[Event "Groningen op-A 55th"]
[Site "Groningen"]
[Date "2017.12.28"]
[Round "7"]
[White "Priyanka, K."]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2134"]
[BlackElo "2120"]
[PlyCount "37"]
[EventDate "2017.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 b6 2. d4 Bb7 3. Nc3 e6 4. a3 c5 5. Nf3 Nf6 6. Bg5 h6 7. Bxf6 Qxf6 8. Qd2 Qd8 9. d5 exd5 10. Nxd5 Be7 11. 0-0-0 0-0 12. g4 Nc6 13. h4 Nd4 14. Nxe7+ Qxe7 15. Nxd4 Qxe4 16. Nf5 Qe6 17. Qc3 f6 18. Bc4 d5 19. Rhe1 1-0

[Event "Groningen op-A 55th"]
[Site "Groningen"]
[Date "2017.12.27"]
[Round "6"]
[White "Dehn, Marcus"]
[Black "Elgersma, Onno"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2120"]
[BlackElo "1935"]
[PlyCount "108"]
[EventDate "2017.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nd2 e6 3. e3 c5 4. c3 Nc6 5. f4 b6 6. Ngf3 Bb7 7. Be2 Rc8 8. 0-0 Be7 9. Ne1 cxd4 10. exd4 Nd5 11. Nc4 f5 12. Ne5 0-0 13. Bf3 d6 14. Nxc6 Bxc6 15. Nd3 Qd7 16. Re1 Bb5 17. Bxd5 exd5 18. Nb4 Bc4 19. Qf3 Qb7 20. Bd2 Rf7 21. b3 a5 22. Nc2 Bb5 23. a4 Bc6 24. b4 Qa8 25. b5 Bb7 26. Ne3 Bf8 27. Kf2 Re8 28. Nf1 Re4 29. Ng3 Rxe1 30. Rxe1 Qc8 31. Qd3 g6 32. Re3 Re7 33. Nf1 Re4 34. g3 Qc4 35. Qxc4 dxc4 36. Bc1 Kf7 37. Ba3 Ke6 38. Nd2 Rxe3 39. Kxe3 Bd5 40. Ke2 Be7 41. Ke3 h6 42. Bc1 g5 43. Ba3 Bf6 44. Bc1 h5 45. Nf3 Bxf3 46. Kxf3 g4+ 47. Ke3 Kd5 48. Bb2 h4 49. Ba1 h3 50. Bb2 Bh4 51. Kf2 Be7 52. Ke3 Ke6 53. Ba3 Bf8 54. Ke2 Kd5 1/2-1/2

[Event "Groningen op-A 55th"]
[Site "Groningen"]
[Date "2017.12.26"]
[Round "5"]
[White "Van Meegen, Ruud"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2235"]
[BlackElo "2120"]
[PlyCount "87"]
[EventDate "2017.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 e6 2. c4 Bb4+ 3. Nd2 b6 4. e4 Bb7 5. Bd3 Nf6 6. Qe2 c5 7. Ngf3 cxd4 8. Nxd4 e5 9. Nc2 Be7 10. 0-0 Nc6 11. Rb1 Qc7 12. b4 a5 13. a3 Nd8 14. Rb2 Ne6 15. Nb1 Nf4 16. Bxf4 exf4 17. Nd4 axb4 18. axb4 Qe5 19. Nf3 Qh5 20. Nc3 0-0 21. e5 Ng4 22. h3 Nh6 23. Be4 Bc6 24. Qd3 Ra3 25. Rc1 Rfa8 26. Rbb1 f5 27. Bd5+ Kh8 28. Qd4 Bxd5 29. Nxd5 Rxf3 30. gxf3 Bg5 31. Ra1 Rg8 32. Kg2 Bh4 33. Rg1 Nf7 34. Qxf4 Bg5 35. Qxf5 Nh6 36. Qe4 Rf8 37. Ne3 Bf4 38. Ra8 Rxa8 39. Qxa8+ Ng8 40. Qe4 Bxe5 41. f4 Bd6 42. Nd5 Bf8 43. Ra1 Nh6 44. Ra8 1-0

[Event "Groningen op-A 55th"]
[Site "Groningen"]
[Date "2017.12.24"]
[Round "4"]
[White "Dehn, Marcus"]
[Black "Van Dael, Siem"]
[Result "1/2-1/2"]
[ECO "A49"]
[WhiteElo "2120"]
[BlackElo "2268"]
[PlyCount "105"]
[EventDate "2017.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nf3 0-0 5. 0-0 d6 6. c3 Nbd7 7. Nbd2 e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Nb3 Qe7 11. Be3 Rd8 12. Qc1 c6 13. Bg5 Be6 14. h3 Bd5 15. c4 Bxg2 16. Kxg2 Rd7 17. Qe3 Rad8 18. Rac1 b6 19. Rc2 Qe6 20. Rfc1 c5 21. f3 Re8 22. Bxf6 Qxf6 23. Nd2 Qe6 24. Nb1 e4 25. Qxe4 Qxe4 26. fxe4 Rxe4 27. Kf3 Rde7 28. Nc3 Re3+ 29. Kf2 Bd4 30. Nd5 Rxe2+ 31. Kf1 R2e3 32. Nxe7+ Rxe7 33. Re1 Rd7 34. Rd1 Rd6 35. Re2 a6 36. Rd3 b5 37. b3 Rb6 38. Rc2 b4 39. Re2 Kf8 40. Kg2 a5 41. g4 h6 42. Kg3 Ra6 43. h4 Ra7 44. g5 hxg5 45. hxg5 a4 46. bxa4 Rxa4 47. Kf4 Ra6 48. Rh3 Ra7 49. Ke4 Re7+ 50. Kd3 Ra7 51. Ke4 Re7+ 52. Kd3 Ra7 53. Ke4 1/2-1/2

[Event "Groningen op-A 55th"]
[Site "Groningen"]
[Date "2017.12.23"]
[Round "3"]
[White "Schippers, Maurice"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "2302"]
[BlackElo "2120"]
[PlyCount "43"]
[EventDate "2017.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 a6 4. Nf3 e6 5. Bd3 Be7 6. 0-0 Nf6 7. Re1 b5 8. exd5 cxd5 9. Ne5 Bd7 10. a3 Nc6 11. Nxc6 Bxc6 12. Qf3 Qb6 13. Be3 b4 14. axb4 Bxb4 15. Reb1 Qb7 16. Qg3 Kf8 17. Bf4 Ne8 18. Na4 Bb5 19. c3 Bxd3 20. Qxd3 Be7 21. b4 Qc8 22. Nb6 1-0

[Event "Groningen op-A 55th"]
[Site "Groningen"]
[Date "2017.12.22"]
[Round "1"]
[White "Dehn, Marcus"]
[Black "Zelbel, Patrick"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2120"]
[BlackElo "2456"]
[PlyCount "105"]
[EventDate "2017.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bf4 a6 4. e3 c5 5. dxc5 Nc6 6. Nf3 e6 7. Be2 Bxc5 8. 0-0 0-0 9. a4 h6 10. Ne5 Bd6 11. Nxc6 bxc6 12. Bxd6 Qxd6 13. a5 Rb8 14. Na4 c5 15. Nb6 Bb7 16. c3 Rfd8 17. Qa4 Ne4 18. f3 Nf6 19. Rfe1 Bc6 20. Qa3 Nd7 21. Nxd7 Bxd7 22. Rad1 Qc7 23. e4 Bb5 24. exd5 exd5 25. Bd3 Bxd3 26. Rxd3 Rb5 27. b4 cxb4 28. cxb4 Qc4 29. Rc1 Qf4 30. g3 Qe5 31. Rcd1 Rc8 32. Rd4 Rc2 33. Qd3 Rb2 34. Rd2 R2xb4 35. Rxb4 Rxb4 36. Qxd5 Qe1+ 37. Kg2 Rb1 38. Qa8+ Kh7 39. Qe4+ Qxe4 40. fxe4 Rb5 41. Ra2 Kg6 42. Kf3 Kf6 43. Kf4 g5+ 44. Kg4 Kg6 45. Ra3 h5+ 46. Kf3 g4+ 47. Ke3 f6 48. Ra2 Kg5 49. Kd4 Re5 50. Ra1 h4 51. gxh4+ Kxh4 52. Rf1 Kg5 53. Rg1 1/2-1/2

[Event "Groningen op-A 54th"]
[Site "Groningen"]
[Date "2016.12.30"]
[Round "9"]
[White "Heemskerk, Wim"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "A11"]
[WhiteElo "2217"]
[BlackElo "2132"]
[PlyCount "105"]
[EventDate "2016.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 d5 3. e3 c6 4. Nf3 Nd7 5. Qc2 Ngf6 6. b3 Be7 7. Bb2 0-0 8. Be2 b6 9. Rg1 Bb7 10. g4 e5 11. g5 Ne8 12. h4 Nd6 13. 0-0-0 e4 14. Nh2 b5 15. d3 b4 16. Na4 f5 17. gxf6 Bxf6 18. Ng4 Qe7 19. c5 Ne8 20. dxe4 dxe4 21. Qc4+ Kh8 22. Qxb4 Bxb2+ 23. Kxb2 Ndf6 24. Rg2 Bc8 25. Nxf6 Qxf6+ 26. Nc3 a5 27. Qd4 Bf5 28. h5 Ra7 29. Qxf6 Nxf6 30. Rd6 Rc7 31. Na4 Nd7 32. Kc3 Ne5 33. Nb2 Bh3 34. Rh2 Bg4 35. Nc4 Nxc4 36. Bxc4 h6 37. Be6 Bf3 38. Rh4 Rb8 39. a3 Re8 40. Kd4 Rf8 41. Rf4 Rb8 42. Rf7 Rxf7 43. Bxf7 g5 44. Rxc6 Kg7 45. Rc7 Kf6 46. c6 Rd8+ 47. Rd7 Rc8 48. Kc5 Bg4 49. Rb7 Ke5 50. b4 a4 51. b5 Bd1 52. Re7+ Kf6 53. Re8 1-0

[Event "Groningen op-A 54th"]
[Site "Groningen"]
[Date "2016.12.28"]
[Round "7"]
[White "Lewin, Tammo"]
[Black "Dehn, Marcus"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2041"]
[BlackElo "2132"]
[PlyCount "16"]
[EventDate "2016.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 a6 4. c4 e6 5. Nf3 b5 6. cxb5 axb5 7. Bd3 b4 8. Ng5 g6 1/2-1/2

[Event "Groningen op-A 54th"]
[Site "Groningen"]
[Date "2016.12.27"]
[Round "6"]
[White "Dehn, Marcus"]
[Black "Boersma, Jan"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "2132"]
[BlackElo "2088"]
[PlyCount "102"]
[EventDate "2016.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 Nf6 2. Nd2 d6 3. Ngf3 c5 4. e3 g6 5. Be2 Bg7 6. 0-0 0-0 7. a4 Qc7 8. Nc4 Nc6 9. c3 Be6 10. Ng5 Bd5 11. dxc5 dxc5 12. e4 Bxc4 13. Bxc4 Ne5 14. Qe2 h6 15. Nf3 Rad8 16. Nxe5 Qxe5 17. f3 e6 18. Be3 Nh5 19. g3 Qc7 20. Rfd1 Kh7 21. Kg2 Bf6 22. Rxd8 Rxd8 23. Rd1 Rxd1 24. Qxd1 Be5 25. Qe1 Bd6 26. Qf2 Ng7 27. Bb5 a6 28. Bc4 Nh5 29. Qe1 Qc6 30. Qd1 Nf6 31. Kf2 Nd7 32. f4 Nf6 33. e5 Ne4+ 34. Kg1 Be7 35. Qf3 Qxa4 36. Qxe4 Qa1+ 37. Bf1 Qxb2 38. Qd3 Kg7 39. c4 h5 40. Qd2 Qb3 41. Bf2 Qa4 42. Qb2 Qd7 43. Qb6 h4 44. gxh4 Qd2 45. Qxb7 Bd8 46. Qxa6 Qxf4 47. Qd6 Qg4+ 48. Bg2 Bc7 49. h3 Qxc4 50. Qxc7 Qc1+ 51. Bf1 Qg5+ 1-0

[Event "Groningen op-A 54th"]
[Site "Groningen"]
[Date "2016.12.24"]
[Round "4"]
[White "Ernst, Sipke"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "2554"]
[BlackElo "2132"]
[PlyCount "57"]
[EventDate "2016.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. Nf3 g6 2. c4 Bg7 3. g3 d6 4. Bg2 Nf6 5. 0-0 0-0 6. Nc3 Nc6 7. d4 Bg4 8. Be3 Qc8 9. Rc1 Bh3 10. d5 Bxg2 11. Kxg2 Ne5 12. Nxe5 dxe5 13. Bc5 Re8 14. e4 e6 15. Qd3 Qd7 16. Rfd1 Rad8 17. Qe2 c6 18. dxe6 Qxe6 19. Rxd8 Rxd8 20. Bxa7 Bh6 21. Rd1 Rxd1 22. Nxd1 Qd6 23. Bb6 c5 24. Ba5 Qa6 25. Bc3 Qxa2 26. Bxe5 Nd7 27. Bc3 Nb6 28. Qd3 Na4 29. Be5 1-0

[Event "Groningen op-A 54th"]
[Site "Groningen"]
[Date "2016.12.21"]
[Round "1"]
[White "Dehn, Marcus"]
[Black "Kuipers, Stefan"]
[Result "1-0"]
[ECO "A41"]
[WhiteElo "2132"]
[BlackElo "2408"]
[PlyCount "65"]
[EventDate "2016.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 d6 2. Nd2 e5 3. c3 Nf6 4. g3 e4 5. Nc4 d5 6. Ne5 Ng8 7. f3 f6 8. Ng4 Bxg4 9. fxg4 Qd7 10. g5 f5 11. Bf4 Nc6 12. e3 Nge7 13. h4 Ng6 14. h5 Nxf4 15. gxf4 a6 16. b4 Be7 17. Ne2 Na7 18. Qb3 Nc8 19. Ng3 c6 20. c4 0-0 21. c5 Kh8 22. a4 b6 23. a5 bxc5 24. bxc5 Na7 25. Bxa6 Rab8 26. Qc2 Rb4 27. 0-0 Rfb8 28. Rfb1 Bd8 29. Rxb4 Rxb4 30. Rb1 Rxb1+ 31. Qxb1 Bxa5 32. Qb8+ Bd8 33. Bb7 1-0

[Event "Groningen op-A 53rd"]
[Site "Groningen"]
[Date "2015.12.29"]
[Round "8"]
[White "Schweitzer, Werner"]
[Black "Dehn, Marcus"]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "2067"]
[BlackElo "2152"]
[PlyCount "82"]
[EventDate "2015.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 170 Extra"]
[Source "ChessBase"]
[SourceDate "2016.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.02.25"]
[SourceQuality "1"]

1. g3 d5 2. Bg2 e6 3. Nf3 Nf6 4. d3 Be7 5. c4 dxc4 6. Qa4+ Bd7 7. Qxc4 Bc6 8. 0-0 0-0 9. b3 Nbd7 10. Bb2 Nb6 11. Qc2 a5 12. a3 Ne8 13. Nbd2 Nd6 14. Nc4 Nbxc4 15. bxc4 Bf6 16. Rab1 Re8 17. Ne5 Bxg2 18. Kxg2 a4 19. e4 Be7 20. Rfd1 f6 21. Nf3 c6 22. Nd4 Qc8 23. Qe2 e5 24. Nc2 b5 25. Nb4 bxc4 26. dxc4 Nb7 27. Bc3 Nc5 28. h3 Qe6 29. Nc2 Nb3 30. Bb4 Bc5 31. Bxc5 Nxc5 32. Rb6 Rab8 33. Rxb8 Rxb8 34. Nb4 h6 35. Qc2 Kh7 36. h4 Rb7 37. f3 Rd7 38. g4 h5 39. Rxd7 Qxd7 40. gxh5 Ne6 41. Nd3 Qxd3 0-1

[Event "Groningen op-A 53rd"]
[Site "Groningen"]
[Date "2015.12.28"]
[Round "7"]
[White "Den Hartog, Marijn"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "2197"]
[BlackElo "2152"]
[PlyCount "43"]
[EventDate "2015.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 170 Extra"]
[Source "ChessBase"]
[SourceDate "2016.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.02.25"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Nf3 d5 5. Bd3 a6 6. 0-0 b5 7. Re1 Bb7 8. Bg5 h6 9. Bh4 g5 10. Bg3 Nd7 11. Qe2 Nb6 12. Ne5 Nf6 13. exd5 Nbxd5 14. Nxd5 Qxd5 15. Ng6 e6 16. Nxh8 c5 17. f3 c4 18. Bg6 Bxh8 19. Qxe6+ Qxe6 20. Rxe6+ Kf8 21. Bd6+ Kg8 22. Bxf7+ 1-0

[Event "Groningen op-A 53rd"]
[Site "Groningen"]
[Date "2015.12.27"]
[Round "6"]
[White "Dehn, Marcus"]
[Black "Maatman, Nick"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2152"]
[BlackElo "2258"]
[PlyCount "149"]
[EventDate "2015.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 170 Extra"]
[Source "ChessBase"]
[SourceDate "2016.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.02.25"]
[SourceQuality "1"]

1. d4 d5 2. g3 c5 3. c3 Nf6 4. Bg2 e6 5. Nf3 Nc6 6. 0-0 Qb6 7. e3 Bd7 8. Nbd2 Be7 9. Ne5 0-0 10. Nxd7 Nxd7 11. b3 cxd4 12. exd4 Rac8 13. Bb2 Rfd8 14. Kh1 Bf6 15. Nf3 a5 16. Qd2 a4 17. Rab1 axb3 18. axb3 Qxb3 19. Ba1 Qa4 20. Rxb7 Rb8 21. Rxb8 Rxb8 22. Qd3 Rb6 23. Nd2 Na5 24. Re1 Qa2 25. f4 g6 26. h4 Bg7 27. Bf1 Nf6 28. Be2 Nb3 29. Nxb3 Rxb3 30. Bf3 Qf2 31. Rg1 Ra3 32. Qf1 Qa2 33. Qb1 Qf2 34. Qf1 Qe3 35. Qg2 h5 36. Bb2 Rb3 37. Rf1 Qd3 38. Ra1 Ng4 39. Bxg4 hxg4 40. Kh2 Bf8 41. Qf2 Kg7 42. Qg2 Bd6 43. Rf1 Bc7 44. Rf2 Ba5 45. Rd2 Qc4 46. Rc2 Bc7 47. Qf2 Bd6 48. Kg2 Qd3 49. Qe2 Qxe2+ 50. Rxe2 Ba3 51. Bxa3 Rxa3 52. Rc2 Kf6 53. Kf2 Kf5 54. Ke3 Ra1 55. Re2 Rg1 56. Kf2 Rc1 57. Re5+ Kf6 58. Re3 Rc2+ 59. Ke1 Ke7 60. f5 gxf5 61. Kf1 Kf6 62. Kg1 Kg6 63. Kf1 f4 64. Re5 fxg3 65. Rg5+ Kh6 66. Rxg4 Rxc3 67. Kg2 Rd3 68. Kh3 f5 69. Rf4 Kh5 70. Kg2 Re3 71. Kh3 Re4 72. Rxe4 fxe4 73. Kxg3 e3 74. Kf3 Kxh4 75. Kxe3 0-1

[Event "Groningen op-A 53rd"]
[Site "Groningen"]
[Date "2015.12.26"]
[Round "5"]
[White "Bianco, Valerio"]
[Black "Dehn, Marcus"]
[Result "0-1"]
[ECO "A94"]
[WhiteElo "2035"]
[BlackElo "2152"]
[PlyCount "84"]
[EventDate "2015.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 170 Extra"]
[Source "ChessBase"]
[SourceDate "2016.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.02.25"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. c4 d5 5. Nf3 c6 6. 0-0 Bd6 7. b3 0-0 8. Ba3 Bxa3 9. Nxa3 Bd7 10. Nc2 Be8 11. Nce1 Nbd7 12. Nd3 Ne4 13. Nfe5 Nxe5 14. Nxe5 Bh5 15. f3 Nd6 16. Qd2 Nf7 17. Qe3 Nxe5 18. Qxe5 Qf6 19. Qxf6 Rxf6 20. e3 g5 21. Rae1 a5 22. c5 f4 23. exf4 gxf4 24. g4 Bf7 25. Rf2 a4 26. b4 a3 27. Rb1 Bg6 28. Rb3 e5 29. dxe5 Re6 30. Bf1 Rxe5 31. Re2 Rxe2 32. Bxe2 Bc2 33. Rc3 Bb1 34. Rc1 Bxa2 35. Kf2 Bb3 36. Ra1 a2 37. Ke1 d4 38. Kd2 Ra3 39. Bd3 Bd5 40. Ke2 Kg7 41. h4 Bf7 42. Be4 Rb3 0-1

[Event "Groningen op-A 53rd"]
[Site "Groningen"]
[Date "2015.12.24"]
[Round "4"]
[White "Dehn, Marcus"]
[Black "Drozdowski, Konrad"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2152"]
[BlackElo "1987"]
[PlyCount "119"]
[EventDate "2015.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 170 Extra"]
[Source "ChessBase"]
[SourceDate "2016.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.02.25"]
[SourceQuality "1"]

1. d4 d5 2. g3 Nf6 3. Bg2 Bf5 4. c3 Nbd7 5. Nf3 e6 6. 0-0 h6 7. Qb3 Nb6 8. a4 a5 9. Bf4 Bd6 10. Bxd6 Qxd6 11. Nbd2 0-0 12. Ne5 Rfb8 13. f3 Bh7 14. Rfe1 Nfd7 15. f4 c5 16. Qa3 Qc7 17. e3 Nxe5 18. fxe5 cxd4 19. exd4 Nc4 20. Nxc4 Qxc4 21. Re3 Bc2 22. Bf1 Qb3 23. Bb5 Rc8 24. Rf3 Rf8 25. Rf2 Rac8 26. Kf1 Rc7 27. Ke1 Qxa3 28. Rxa3 Be4 29. Kd2 f6 30. exf6 Rxf6 31. Rxf6 gxf6 32. Rb3 b6 33. Ba6 Rc6 34. Rb5 Bg6 35. b4 axb4 36. Rxb4 Kf8 37. Bb7 Rd6 38. Kc1 Bd3 39. a5 bxa5 40. Ra4 Rb6 41. Bc8 Rc6 42. Bd7 Ra6 43. Bc8 Rc6 44. Bd7 Ra6 45. Bc8 Bb5 46. Ra3 Rd6 47. Rxa5 Bd7 48. Bb7 Kg7 49. Ra8 Bb5 50. h4 Be2 51. Kd2 Bh5 52. Ba6 Bg4 53. Ra7+ Kg6 54. Bb5 h5 55. Ke3 Rb6 56. Be8+ Kh6 57. Rf7 e5 58. Rc7 Rb2 59. dxe5 fxe5 60. Bf7 1/2-1/2

[Event "Groningen op-A 53rd"]
[Site "Groningen"]
[Date "2015.12.23"]
[Round "3"]
[White "Chen, Pengyu"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "A42"]
[WhiteElo "2289"]
[BlackElo "2152"]
[PlyCount "85"]
[EventDate "2015.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 170 Extra"]
[Source "ChessBase"]
[SourceDate "2016.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.02.25"]
[SourceQuality "1"]

1. d4 g6 2. e4 Bg7 3. c4 d6 4. Nc3 c6 5. f4 Qb6 6. Nge2 e5 7. c5 Qa5 8. cxd6 exd4 9. Nxd4 Nh6 10. Nb3 Qb6 11. Be2 0-0 12. Qd3 Na6 13. Qe3 Qb4 14. Bxa6 bxa6 15. e5 Re8 16. Qc5 a5 17. Qxa5 Qxd6 18. 0-0 Qe7 19. Ne4 Be6 20. Qc5 Bd5 21. Qxe7 Rxe7 22. Nbc5 Nf5 23. Bd2 Nd4 24. Rfd1 Rb8 25. b3 Rb5 26. Kf1 Kf8 27. Rac1 h6 28. Be1 Nf5 29. Bf2 h5 30. Nc3 Rb4 31. Nxd5 cxd5 32. Nd3 Re4 33. Rc8+ Re8 34. Bc5+ Ne7 35. Rc7 g5 36. g3 a5 37. Re1 f6 38. e6 Bh6 39. f5 g4 40. Rxe4 dxe4 41. Ne5 fxe5 42. f6 Ra8 43. Rxe7 1-0

[Event "Groningen op-A 53rd"]
[Site "Groningen"]
[Date "2015.12.22"]
[Round "2"]
[White "Dehn, Marcus"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2152"]
[BlackElo "2012"]
[PlyCount "53"]
[EventDate "2015.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 170 Extra"]
[Source "ChessBase"]
[SourceDate "2016.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.02.25"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 0-0 6. 0-0 e5 7. Nbc3 Nc6 8. dxe5 dxe5 9. Be3 Be6 10. Nd5 Nd7 11. c4 Ne7 12. c5 c6 13. Nb4 Qa5 14. Nd3 Bc4 15. Nec1 Rfd8 16. Qc2 Bxd3 17. Nxd3 Nf8 18. Bh3 Qc7 19. b3 h6 20. Nb2 b5 21. cxb6 axb6 22. Nc4 c5 23. a4 Nc6 24. a5 b5 25. Nb6 Nxa5 26. Nxa8 Rxa8 27. b4 1-0

[Event "Groningen op-A 53rd"]
[Site "Groningen"]
[Date "2015.12.21"]
[Round "1"]
[White "Lobzhanidze, Davit"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2425"]
[BlackElo "2152"]
[PlyCount "36"]
[EventDate "2015.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 170 Extra"]
[Source "ChessBase"]
[SourceDate "2016.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.02.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 a6 4. c4 g6 5. h3 Bg7 6. Nf3 Nh6 7. Nc3 0-0 8. Be2 b5 9. c5 f6 10. exf6 exf6 11. Bf4 Nf7 12. Qd2 Nd7 13. g4 Re8 14. 0-0-0 Nf8 15. Be3 Qa5 16. Bd3 Ra7 17. Kb1 Rae7 18. Nxd5 Qb6 1-0

[Event "Lingen Gutman rap op"]
[Site "Lingen"]
[Date "2015.09.26"]
[Round "1"]
[White "Dehn, Marcus"]
[Black "Mikhalevski, Victor"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2136"]
[BlackElo "2536"]
[PlyCount "84"]
[EventDate "2015.09.26"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 c5 3. e3 Qb6 4. Nc3 g6 5. Rb1 Bg7 6. dxc5 Qxc5 7. Qd4 Qa5 8. Qa4 Qxa4 9. Nxa4 Nc6 10. Nc3 0-0 11. Be2 d6 12. h3 Bf5 13. Bd3 Be6 14. a3 Rac8 15. Nge2 Nd7 16. Nc1 Bxc3+ 17. bxc3 Na5 18. Ne2 Rc7 19. Kd2 Nc4+ 20. Bxc4 Bxc4 21. Bh6 Rfc8 22. Rb2 Ba6 23. f3 Nb6 24. Rb3 Bc4 25. Rb4 Bxe2 26. Kxe2 Rxc3 27. Ra1 Rxc2+ 28. Kf1 f6 29. a4 g5 30. h4 Nd5 31. Rb3 R8c3 32. Rxc3 Rxc3 33. e4 Ne3+ 34. Kf2 Nc4 35. hxg5 Rc2+ 36. Kg3 Kf7 37. gxf6 Kxf6 38. a5 Kg6 39. Bc1 h5 40. f4 e6 41. Kf3 a6 42. g4 Rc3+ 1/2-1/2

[Event "Vlissingen HZ op 19th"]
[Site "Vlissingen"]
[Date "2015.08.07"]
[Round "8"]
[White "Hoffman, Ron"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2074"]
[BlackElo "2165"]
[PlyCount "99"]
[EventDate "2015.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 167 Extra"]
[Source "ChessBase"]
[SourceDate "2015.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2015.09.14"]
[SourceQuality "1"]

1. d4 Nc6 2. Nf3 d6 3. e4 Bg4 4. Be3 a6 5. Be2 e6 6. d5 Bxf3 7. Bxf3 exd5 8. exd5 Ne5 9. Be2 Be7 10. 0-0 Nf6 11. c4 Qd7 12. h3 Ne4 13. Qc2 Qf5 14. f4 Ng3 15. Qxf5 Nxf5 16. Bf2 Ng6 17. Bd3 Nh6 18. Bd4 Bf6 19. Bxf6 gxf6 20. Nd2 f5 21. Nb3 Ke7 22. g3 Kf6 23. Kf2 Ng8 24. Nd4 N8e7 25. Kf3 c5 26. dxc6 bxc6 27. g4 fxg4+ 28. hxg4 h5 29. g5+ Kg7 30. Rae1 Rae8 31. Rh1 c5 32. Ne2 d5 33. cxd5 Nxd5 34. Be4 Nde7 35. Rc1 Rc8 36. Ng3 h4 37. Nf5+ Nxf5 38. Bxf5 Rb8 39. b3 Rb5 40. Kg4 Ne7 41. Bd3 Ra5 42. Rce1 Nc6 43. a4 Nd4 44. Bc4 f5+ 45. gxf6+ Kxf6 46. Re3 Rh7 47. Re5 Rh6 48. Rh3 Rh7 49. Rg5 Nc2 50. Bd3 1-0

[Event "Vlissingen HZ op 19th"]
[Site "Vlissingen"]
[Date "2015.08.04"]
[Round "5"]
[White "Dehn, Marcus"]
[Black "Van der Sloot, Olaf"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "2165"]
[BlackElo "1928"]
[PlyCount "82"]
[EventDate "2015.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 167 Extra"]
[Source "ChessBase"]
[SourceDate "2015.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2015.09.14"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 c5 3. e3 Qb6 4. Nc3 d6 5. dxc5 Qxc5 6. Qd4 Qa5 7. b4 Qd8 8. Bg5 Nbd7 9. Bb5 a6 10. Ba4 h6 11. Bxf6 gxf6 12. h4 Bg7 13. Rh3 Kf8 14. Rg3 Rg8 15. Nge2 f5 16. Qd2 Nb6 17. Bb3 Be6 18. Nd4 Bxb3 19. axb3 e6 20. Rh3 Rc8 21. Ra5 Nd7 22. Nce2 Nf6 23. f3 h5 24. b5 axb5 25. Rxb5 Qd7 26. Qb4 Rc7 27. c4 Bh6 28. Kf2 Rg6 29. Rb6 Ne8 30. Nf4 Bxf4 31. exf4 Kg8 32. Rh1 e5 33. Ne2 e4 34. Rd1 exf3 35. Kxf3 Qe7 36. g3 Qe4+ 37. Kf2 Re7 38. Qd2 Nf6 39. Nc3 Ng4+ 40. Kg1 Qf3 41. Qg2 Qxc3 0-1

[Event "Vlissingen HZ op 19th"]
[Site "Vlissingen"]
[Date "2015.08.03"]
[Round "4"]
[White "Van Midde, Jon"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "C14"]
[WhiteElo "1977"]
[BlackElo "2165"]
[PlyCount "119"]
[EventDate "2015.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 167 Extra"]
[Source "ChessBase"]
[SourceDate "2015.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2015.09.14"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 Nc6 7. Bb5 h6 8. Bxe7 Nxe7 9. Nce2 c5 10. c3 Qa5 11. Qa4 Qxa4 12. Bxa4 b6 13. h5 Ba6 14. Kd2 0-0-0 15. f4 Rdf8 16. Bc2 f5 17. Nf3 Bxe2 18. Kxe2 c4 19. b3 cxb3 20. axb3 Kb8 21. Bd3 Rc8 22. Kd2 Rc7 23. Ra3 Rg8 24. Raa1 Nc6 25. Nh4 Na5 26. Rab1 Rgc8 27. Ba6 Rf8 28. Ng6 Rd8 29. Be2 Nf8 30. Nh4 Rdc8 31. Rhc1 Rf7 32. Ke3 Nc6 33. g3 Ne7 34. Ba6 Rd8 35. Bd3 Nd7 36. Rg1 Rc8 37. Kd2 Rcf8 38. Rbf1 Kc7 39. Ra1 a5 40. b4 Nc6 41. bxa5 Nxa5 42. Rab1 Ra8 43. Rb4 Nc6 44. Rb2 Ra3 45. Ng2 Rf8 46. Ne3 g5 47. hxg6 Rg8 48. Rh1 Rxg6 49. g4 Ne7 50. gxf5 exf5 51. Rh2 Rg3 52. Rxh6 Rf3 53. Rh7 Rf2+ 54. Be2 Kd8 55. Ke1 Rxe2+ 56. Kxe2 Nf8 57. Rxe7 Kxe7 58. Rxb6 Ne6 59. Nxd5+ Kf7 60. Rb7+ 1-0

[Event "Vlissingen HZ op 19th"]
[Site "Vlissingen"]
[Date "2015.08.02"]
[Round "3"]
[White "Dehn, Marcus"]
[Black "Mu, Ke"]
[Result "0-1"]
[ECO "A43"]
[WhiteElo "2165"]
[BlackElo "2380"]
[PlyCount "118"]
[EventDate "2015.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 167 Extra"]
[Source "ChessBase"]
[SourceDate "2015.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2015.09.14"]
[SourceQuality "1"]

1. d4 c5 2. dxc5 e6 3. Nd2 Nf6 4. Nb3 Na6 5. Qd4 Qc7 6. Bf4 Qc6 7. Bd6 Bxd6 8. Qxd6 Ne4 9. Qd4 0-0 10. Nf3 Naxc5 11. Nxc5 Nxc5 12. Ne5 Qc7 13. 0-0-0 d5 14. Nd3 b6 15. Kb1 Bb7 16. e3 Rac8 17. Nxc5 bxc5 18. Qd2 Rb8 19. c3 Bc6 20. Qc1 Qa5 21. Bd3 Rb6 22. Ka1 Ba4 23. Rd2 Bb3 24. a3 Rfb8 25. Bb1 Qa4 26. h4 Bc4 27. Qc2 Qxc2 28. Rxc2 Kf8 29. Rd2 h6 30. Rc1 Ke7 31. e4 Kf6 32. f4 dxe4 33. Bxe4 h5 34. Re1 g6 35. g3 Ke7 36. Kb1 Bb3 37. Kc1 Ba4 38. Bf3 Rd6 39. Rxd6 Kxd6 40. Re2 Bc6 41. Rd2+ Kc7 42. Be2 a5 43. Bc4 Be4 44. Re2 Bf5 45. Rd2 Bg4 46. Rd3 Be2 47. Rd7+ Kxd7 48. Bxe2 Kd6 49. Bc4 Rb7 50. b3 f6 51. Kd2 g5 52. Ke3 gxh4 53. gxh4 Rg7 54. Be2 Rg3+ 55. Kd2 Rh3 56. b4 cxb4 57. cxb4 a4 58. Bxh5 Rxa3 59. Be8 Rb3 0-1

[Event "GER CupT V4"]
[Site "Braunschweig"]
[Date "2015.01.11"]
[Round "2.4"]
[White "Heyder, Florian"]
[Black "Dehn, Marcus"]
[Result "0-1"]
[ECO "C14"]
[WhiteElo "2157"]
[BlackElo "2138"]
[PlyCount "138"]
[EventDate "2015.01.10"]
[EventType "team-k.o."]
[EventRounds "2"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Sangerhausen"]
[BlackTeam "Braunschweig KS"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 e6 2. e4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Qg4 g6 8. f4 a6 9. Nf3 c5 10. 0-0-0 Nc6 11. h4 h5 12. Qg5 b6 13. Ne2 Bb7 14. Kb1 cxd4 15. Nexd4 Nc5 16. Nxc6 Bxc6 17. Nd4 Bd7 18. Bd3 Nxd3 19. Rxd3 Qxg5 20. hxg5 Ke7 21. Rhh3 Rhc8 22. Rc3 Bb5 23. Rxc8 Rxc8 24. Nxb5 axb5 25. b3 b4 26. Kb2 Kd7 27. Rd3 Kc6 28. c3 Kb5 29. cxb4 Kxb4 30. Rd4+ Kc5 31. Ra4 Rc7 32. Kc3 b5 33. Ra8 b4+ 34. Kd3 Kb6 35. Rb8+ Kc5 36. Ra8 Kc6 37. Kd4 Kd7 38. Rb8 Ra7 39. Rxb4 Rxa2 40. Rb7+ Ke8 41. Kc5 Rxg2 42. b4 Kf8 43. b5 Rc2+ 44. Kd6 d4 45. Ra7 d3 46. Ra1 d2 47. Rd1 Rb2 48. Kc6 Ke7 49. b6 Rc2+ 50. Kb7 Kd7 51. Ka8 Kc6 52. b7 Ra2+ 53. Kb8 Rb2 54. Kc8 Rxb7 55. Rxd2 Rb4 56. Rf2 Kd5 57. Kd7 Rb7+ 58. Ke8 Ke4 59. Kf8 Kf5 60. Kg7 h4 61. Rf1 Rb4 62. Kxf7 Rxf4 63. Rh1 Rf3 64. Rh2 h3 65. Rh1 Rf2 66. Kg7 h2 67. Kf7 Rg2 68. Rf1+ Kxg5 69. Kxe6 Rg1 0-1

[Event "GER CupT V4"]
[Site "Braunschweig"]
[Date "2015.01.10"]
[Round "1.3"]
[White "Lindenmair, Anton"]
[Black "Dehn, Marcus"]
[Result "1/2-1/2"]
[ECO "A41"]
[WhiteElo "2020"]
[BlackElo "2138"]
[PlyCount "78"]
[EventDate "2015.01.10"]
[EventType "team-k.o."]
[EventRounds "2"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "DBSB Auswahl"]
[BlackTeam "Braunschweig KS"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d6 2. c4 e5 3. Nf3 Nc6 4. d5 Nce7 5. e4 Ng6 6. Be2 Be7 7. 0-0 h6 8. Nc3 Bg5 9. b4 Bxc1 10. Rxc1 a5 11. a3 Nf6 12. c5 0-0 13. Nd2 Nf4 14. Nc4 axb4 15. axb4 Ne8 16. Bf3 f5 17. Ne2 fxe4 18. Bxe4 Bd7 19. Nxf4 Rxf4 20. Re1 Ra2 21. Re2 Rxe2 22. Qxe2 Bb5 23. Qc2 Bxc4 24. Qxc4 Nf6 25. Re1 Qf8 26. f3 Nxe4 27. Rxe4 Rxe4 28. fxe4 Qf4 29. cxd6 cxd6 30. b5 Qe3+ 31. Kf1 Kh7 32. Qb4 Qf4+ 33. Kg1 Qe3+ 34. Kf1 Qf4+ 35. Kg1 Qc1+ 36. Kf2 Qf4+ 37. Kg1 Qc1+ 38. Kf2 Qf4+ 39. Kg1 Qc1+ 1/2-1/2

[Event "Groningen op 52nd"]
[Site "Groningen"]
[Date "2014.12.30"]
[Round "9"]
[White "Schoppen, Casper"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "E16"]
[WhiteElo "1927"]
[BlackElo "2169"]
[PlyCount "119"]
[EventDate "2014.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 e6 2. c4 Bb4+ 3. Bd2 Bxd2+ 4. Qxd2 d6 5. Nf3 Nd7 6. Nc3 Ngf6 7. g3 b6 8. Bg2 Bb7 9. 0-0 0-0 10. Qc2 Re8 11. Rfd1 a6 12. Rac1 Ra7 13. d5 e5 14. b4 Qe7 15. Nd2 Nb8 16. Nb3 e4 17. e3 c5 18. bxc5 bxc5 19. Nd2 Bc8 20. Ndxe4 Bg4 21. Rd2 Nbd7 22. Nxf6+ Qxf6 23. h3 Bf3 24. Qa4 Re7 25. Bxf3 Qxf3 26. Qd1 Ne5 27. Rb2 Rab7 28. Rcb1 Rxb2 29. Rxb2 f5 30. Qxf3 Nxf3+ 31. Kg2 Ne5 32. Rb6 Nxc4 33. Rxa6 Rb7 34. e4 Rb2 35. exf5 Rd2 36. f6 Rd4 37. fxg7 Kxg7 38. Ra7+ Kh6 39. Re7 Rd3 40. Ne4 Rxd5 41. Rxh7+ Kg6 42. Re7 Nd2 43. Nc3 Rd4 44. Nb5 Kf6 45. Nxd4 Kxe7 46. Nb3 Nb1 47. Kf3 Ke6 48. Ke3 Nc3 49. a3 Na4 50. h4 d5 51. h5 c4 52. Nd4+ Kf6 53. g4 Kg5 54. f4+ Kh6 55. Nf5+ Kh7 56. g5 Nb2 57. g6+ Kh8 58. h6 Nd1+ 59. Kd4 Nc3 60. Ne7 1-0

[Event "Groningen op 52nd"]
[Site "Groningen"]
[Date "2014.12.29"]
[Round "8"]
[White "Dehn, Marcus"]
[Black "Benson, Oisin P"]
[Result "1-0"]
[ECO "A49"]
[WhiteElo "2169"]
[BlackElo "2010"]
[PlyCount "87"]
[EventDate "2014.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 164 Extra"]
[Source "ChessBase"]
[SourceDate "2015.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2015.03.02"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. Nc3 Nbd7 7. Nd2 c5 8. dxc5 Nxc5 9. Nb3 Ne6 10. a4 Rb8 11. a5 Bd7 12. Be3 a6 13. Ba7 Ra8 14. Bb6 Qc8 15. e4 Nd8 16. Re1 Nc6 17. f4 Bh3 18. Nd5 Bxg2 19. Kxg2 Kh8 20. c3 h5 21. Nd4 Qd7 22. Nxc6 Nxd5 23. Qxd5 bxc6 24. Qd3 Qe6 25. Re2 Qb3 26. Ra3 Qe6 27. Ra4 Rfe8 28. f5 gxf5 29. exf5 Qh6 30. Qf3 Bf6 31. Qxc6 h4 32. Qf3 Rg8 33. Be3 Qh7 34. Bf2 Rab8 35. Bd4 Bxd4 36. Rxd4 Rb5 37. Rd5 hxg3 38. hxg3 Rxd5 39. Qxd5 Rg5 40. Rxe7 Kg8 41. Re8+ Kg7 42. Qd4+ Kh6 43. Qh4+ Rh5 44. Qf6+ 1-0

[Event "Groningen op 52nd"]
[Site "Groningen"]
[Date "2014.12.28"]
[Round "7"]
[White "Kokje, Joris"]
[Black "Dehn, Marcus"]
[Result "1/2-1/2"]
[ECO "E11"]
[WhiteElo "1865"]
[BlackElo "2169"]
[PlyCount "82"]
[EventDate "2014.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 164 Extra"]
[Source "ChessBase"]
[SourceDate "2015.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2015.03.02"]
[SourceQuality "1"]

1. d4 e6 2. c4 Bb4+ 3. Bd2 Qe7 4. Nf3 Nf6 5. Nc3 Bxc3 6. Bxc3 Ne4 7. Qc2 Nxc3 8. Qxc3 d6 9. e3 Nd7 10. 0-0-0 b6 11. Nd2 Bb7 12. f3 e5 13. Kb1 a5 14. h4 0-0-0 15. d5 Nc5 16. Bd3 Nxd3 17. Qxd3 h6 18. g4 Kb8 19. h5 Rdf8 20. a3 Qd7 21. e4 Bc8 22. b4 axb4 23. axb4 c5 24. b5 Kc7 25. Kb2 Bb7 26. Ra1 Ra8 27. Qe3 Qe7 28. Kc2 Rxa1 29. Rxa1 Qh4 30. Qg1 g6 31. Qh1 Qg5 32. Qh2 Qe3 33. Qh4 g5 34. Qe1 Qd4 35. Qg1 Qxg1 36. Rxg1 Ra8 37. Kb3 Kd8 38. Rc1 Ke7 39. Nf1 Bc8 40. Ng3 Kf6 41. Ne2 Ke7 1/2-1/2

[Event "Groningen op 52nd"]
[Site "Groningen"]
[Date "2014.12.27"]
[Round "6"]
[White "Sreeves, Clement"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2284"]
[BlackElo "2169"]
[PlyCount "81"]
[EventDate "2014.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 164 Extra"]
[Source "ChessBase"]
[SourceDate "2015.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2015.03.02"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bd7 5. Nf3 Bc6 6. Bd3 Nf6 7. Ned2 Nbd7 8. 0-0 Be7 9. Nc4 Be4 10. Bxe4 Nxe4 11. Re1 Nef6 12. Bf4 Nh5 13. Be3 c6 14. a4 0-0 15. a5 a6 16. Nfd2 Nhf6 17. Bf4 Nd5 18. Bg3 N7f6 19. c3 Qc8 20. Nd6 Bxd6 21. Bxd6 Rd8 22. Nc4 Ne8 23. Bc5 Qc7 24. Ne5 Rdc8 25. Qf3 Nef6 26. Ra3 Re8 27. g4 h6 28. h4 h5 29. gxh5 Ne7 30. h6 Nf5 31. hxg7 Kxg7 32. Kh1 Nxh4 33. Rg1+ Ng6 34. Kg2 Rh8 35. Kf1 Rh6 36. c4 Rah8 37. b4 Rh4 38. Re3 Qd8 39. Nxg6 fxg6 40. Rxe6 Rxd4 41. Re7+ 1-0

[Event "Groningen op 52nd"]
[Site "Groningen"]
[Date "2014.12.26"]
[Round "5"]
[White "Dehn, Marcus"]
[Black "Chu, Wei Chao"]
[Result "1/2-1/2"]
[ECO "A47"]
[WhiteElo "2169"]
[BlackElo "2361"]
[PlyCount "70"]
[EventDate "2014.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 164 Extra"]
[Source "ChessBase"]
[SourceDate "2015.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2015.03.02"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. 0-0 c5 6. c3 Be7 7. Nbd2 0-0 8. Re1 d5 9. Ne5 Nbd7 10. Ndf3 Nxe5 11. Nxe5 Bd6 12. Bg5 Re8 13. Ng4 Be7 14. Nxf6+ Bxf6 15. Bxf6 Qxf6 16. f4 cxd4 17. cxd4 Rec8 18. Qd2 Rc4 19. e3 Qe7 20. Rec1 Rac8 21. Bf1 R4c7 22. a3 g6 23. Bd3 Kg7 24. Kf2 Qd6 25. Rxc7 Qxc7 26. Ke1 f6 27. Kd1 Bc6 28. Ba6 Ba4+ 29. Ke1 Re8 30. Rc1 Qd7 31. Qc3 Re7 32. Be2 Bb5 33. Qc8 Bxe2 34. Qxd7 Rxd7 35. Kxe2 Kf7 1/2-1/2

[Event "Groningen op 52nd"]
[Site "Groningen"]
[Date "2014.12.24"]
[Round "4"]
[White "Dehn, Marcus"]
[Black "Sandvik, Thomas"]
[Result "1-0"]
[ECO "A43"]
[WhiteElo "2169"]
[BlackElo "2060"]
[PlyCount "67"]
[EventDate "2014.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 164 Extra"]
[Source "ChessBase"]
[SourceDate "2015.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2015.03.02"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 b5 4. a4 Bb7 5. axb5 Bxd5 6. Nc3 Bxf3 7. exf3 d5 8. b6 Qxb6 9. Nxd5 Qe6+ 10. Ne3 Qc6 11. Be2 e6 12. 0-0 Be7 13. c3 Nbd7 14. f4 Qc7 15. Bf3 Rb8 16. Qa4 Bd6 17. g3 0-0 18. Qxa7 Nb6 19. Qxc7 Bxc7 20. Ra7 Bd6 21. Rd1 Rfd8 22. c4 Bf8 23. Rxd8 Rxd8 24. Kf1 Ne8 25. Ra6 Nc8 26. f5 Nc7 27. Ra5 Nb6 28. Ra7 Bd6 29. b3 Be5 30. Ba3 Rd3 31. Rb7 Nd7 32. Ke2 Rc3 33. Bb2 Rxe3+ 34. fxe3 1-0

[Event "Groningen op 52nd"]
[Site "Groningen"]
[Date "2014.12.23"]
[Round "3"]
[White "Dirksen, Marieke"]
[Black "Dehn, Marcus"]
[Result "0-1"]
[ECO "C14"]
[WhiteElo "2002"]
[BlackElo "2169"]
[PlyCount "90"]
[EventDate "2014.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 164 Extra"]
[Source "ChessBase"]
[SourceDate "2015.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2015.03.02"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Qd2 a6 8. f4 c5 9. Nf3 Nc6 10. Ne2 c4 11. g4 h5 12. gxh5 Rxh5 13. Ng3 Rh8 14. h4 Nf8 15. Be2 Bd7 16. Ng5 f6 17. Nf3 b5 18. h5 a5 19. Rh4 a4 20. Kf2 Kd8 21. Rah1 f5 22. Ng5 Be8 23. h6 Rxh6 24. Rxh6 gxh6 25. Rxh6 a3 26. b3 cxb3 27. cxb3 Qb4 28. Ke3 Qxd2+ 29. Kxd2 Nb4 30. Nxe6+ Nxe6 31. Rxe6 Nxa2 32. Rd6+ Bd7 33. e6 Nc3 34. Rxd7+ Kc8 35. Nxf5 Ra6 36. Nd6+ Rxd6 37. Rxd6 Ne4+ 38. Kc2 Nxd6 39. b4 Nf5 40. Bg4 Ne3+ 41. Kb3 Nxg4 42. Kxa3 Kd8 43. Kb3 Ke7 44. Kc3 Kxe6 45. Kd3 Kf5 0-1

[Event "Groningen op 52nd"]
[Site "Groningen"]
[Date "2014.12.22"]
[Round "2"]
[White "Dehn, Marcus"]
[Black "Jarmany, John"]
[Result "0-1"]
[ECO "D01"]
[WhiteElo "2169"]
[BlackElo "2023"]
[PlyCount "108"]
[EventDate "2014.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 164 Extra"]
[Source "ChessBase"]
[SourceDate "2015.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2015.03.02"]
[SourceQuality "1"]

1. d4 d5 2. Nc3 Nf6 3. Bg5 Bf5 4. f3 Nbd7 5. Nxd5 Nxd5 6. e4 h6 7. Bc1 Be6 8. exd5 Bxd5 9. c4 Be6 10. d5 Bf5 11. Bd3 e6 12. Bxf5 exf5 13. Qe2+ Be7 14. Be3 0-0 15. 0-0-0 Re8 16. Qd2 a5 17. Ne2 Bb4 18. Nc3 Ne5 19. b3 a4 20. Bd4 axb3 21. axb3 Qd6 22. Qc2 Nd7 23. Nb5 Qf4+ 24. Kb2 Re7 25. Bc3 Bxc3+ 26. Nxc3 Rae8 27. Qd2 Qd6 28. g3 Nc5 29. Qc2 Qf6 30. Rd2 Re3 31. Rf1 Ra8 32. Rc1 Rxf3 33. Qd1 Re3 34. Rd4 Qa6 35. Rb1 Qa3+ 36. Kc2 Qb4 37. Qd2 Rf3 38. Rb2 Ra1 39. Nb5 Qxd2+ 40. Rxd2 Ne4 41. Re2 c6 42. Rxe4 fxe4 43. dxc6 bxc6 44. Nd4 Rf2+ 45. Kc3 Rc1+ 46. Rc2 Rfxc2+ 47. Nxc2 f5 48. b4 Kf7 49. Kb2 Rxc2+ 50. Kxc2 Ke6 51. h4 g5 52. h5 f4 53. g4 Ke5 54. Kc3 f3 0-1

[Event "Groningen op 52nd"]
[Site "Groningen"]
[Date "2014.12.21"]
[Round "1"]
[White "Brandenburg, Daan"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2530"]
[BlackElo "2169"]
[PlyCount "71"]
[EventDate "2014.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 164 Extra"]
[Source "ChessBase"]
[SourceDate "2015.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2015.03.02"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. h3 g6 5. Be3 Bg7 6. g4 h6 7. Bg2 Nbd7 8. Nge2 Nb6 9. b3 d5 10. e5 Ng8 11. Ng3 e6 12. h4 Bd7 13. a4 a5 14. Nce2 Nc8 15. f4 f5 16. h5 Nce7 17. hxg6 Nxg6 18. Nh5 Bf8 19. Neg3 Qe7 20. gxf5 exf5 21. Qd3 Qf7 22. Bd2 Be6 23. 0-0-0 Rh7 24. Bh3 Nh4 25. Rdg1 Ba3+ 26. Kb1 Be7 27. Bf1 Kd7 28. Be2 Kc7 29. Nf1 Ng6 30. Qg3 Nf8 31. Ng7 Ba3 32. Ne3 b5 33. axb5 a4 34. b4 cxb5 35. Nxe6+ Nxe6 36. Nxd5+ 1-0

[Event "Groningen op-A 51st"]
[Site "Groningen"]
[Date "2013.12.30"]
[Round "9"]
[White "Dehn, Marcus"]
[Black "Bellia, Fabrizio"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "2135"]
[BlackElo "2424"]
[PlyCount "48"]
[EventDate "2013.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 158 Extra"]
[Source "ChessBase"]
[SourceDate "2014.02.28"]
[SourceVersion "1"]
[SourceVersionDate "2014.02.28"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 0-0 5. Be2 c5 6. c3 d6 7. dxc5 dxc5 8. Qxd8 Rxd8 9. Bc7 Rd7 10. Bg3 Ne4 11. Bb5 Nc6 12. Bh4 Nd6 13. a4 a6 14. Bxc6 bxc6 15. Na3 Nf5 16. Nc4 Rb7 17. a5 Rb5 18. Bg5 Be6 19. Nb6 Re8 20. 0-0 Rxb2 21. Na4 Rb5 22. Bf4 Rxa5 23. Ne5 Bb3 24. Ra3 c4 0-1

[Event "Groningen op-A 51st"]
[Site "Groningen"]
[Date "2013.12.29"]
[Round "8"]
[White "Estremera Panos, Sergio"]
[Black "Dehn, Marcus"]
[Result "1-0"]
[ECO "A43"]
[WhiteElo "2365"]
[BlackElo "2135"]
[PlyCount "75"]
[EventDate "2013.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 158 Extra"]
[Source "ChessBase"]
[SourceDate "2014.02.28"]
[SourceVersion "1"]
[SourceVersionDate "2014.02.28"]
[SourceQuality "1"]

1. d4 c5 2. d5 f5 3. g4 d6 4. gxf5 Bxf5 5. Nc3 e5 6. e4 Bg6 7. h4 Be7 8. h5 Bf7 9. Be3 Nh6 10. Nh3 Nd7 11. Be2 a6 12. a4 Qa5 13. Rg1 Bf6 14. Ra3 0-0-0 15. Qd2 c4 16. Nb1 Qc7 17. Rc3 b5 18. axb5 axb5 19. Na3 Nc5 20. Nxb5 Nxe4 21. Nxc7 Nxd2 22. Nb5 Ne4 23. Rxc4+ Nc5 24. Nxd6+ Rxd6 25. Rxc5+ Kd8 26. c4 Kd7 27. Ra5 Rb8 28. Bc5 Rb7 29. b4 e4 30. Kd2 Nf5 31. Bg4 g6 32. Re1 Bd8 33. Ra8 Rf6 34. hxg6 hxg6 35. Ng5 Kc7 36. Nxe4 Rfb6 37. Bxb6+ Rxb6 38. Ra7+ 1-0

[Event "Groningen op-A 51st"]
[Site "Groningen"]
[Date "2013.12.28"]
[Round "7"]
[White "Dehn, Marcus"]
[Black "Burg, Brent"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "2135"]
[BlackElo "2227"]
[PlyCount "93"]
[EventDate "2013.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 158 Extra"]
[Source "ChessBase"]
[SourceDate "2014.02.28"]
[SourceVersion "1"]
[SourceVersionDate "2014.02.28"]
[SourceQuality "1"]

1. d4 f5 2. Nc3 Nf6 3. Bg5 d5 4. Bxf6 exf6 5. e3 Be6 6. h4 Qd7 7. h5 Nc6 8. Bb5 a6 9. Bxc6 Qxc6 10. Nge2 0-0-0 11. Qd3 Be7 12. 0-0-0 Qd7 13. Kb1 g5 14. hxg6 hxg6 15. Nf4 Bf7 16. Qd2 g5 17. Nd3 Qd6 18. Ne2 Bh5 19. Rdg1 Qe6 20. Nec1 Rh7 21. Nc5 Bxc5 22. dxc5 Rdh8 23. Nb3 Be8 24. Rxh7 Rxh7 25. Nd4 Qe4 26. b3 c6 27. Qd3 Bd7 28. Qxe4 fxe4 29. Kc1 b6 30. b4 a5 31. c3 bxc5 32. bxc5 Kc7 33. a4 Bg4 34. f3 exf3 35. gxf3 Bc8 36. Rg2 Rh3 37. Kd2 Ba6 38. Nb3 Rxf3 39. Rh2 Bc8 40. Rh7+ Bd7 41. Nd4 Rf2+ 42. Ke1 Ra2 43. Ne6+ Kc8 44. Rh8+ Kb7 45. Rh7 Kc8 46. Rh8+ Kb7 47. Rh7 1/2-1/2

[Event "Groningen op-A 51st"]
[Site "Groningen"]
[Date "2013.12.27"]
[Round "6"]
[White "Senders, Mischa"]
[Black "Dehn, Marcus"]
[Result "0-1"]
[ECO "B15"]
[WhiteElo "2058"]
[BlackElo "2135"]
[PlyCount "116"]
[EventDate "2013.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 158 Extra"]
[Source "ChessBase"]
[SourceDate "2014.02.28"]
[SourceVersion "1"]
[SourceVersionDate "2014.02.28"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 a6 4. Nf3 Bg4 5. Be2 e6 6. 0-0 Bd6 7. e5 Be7 8. a4 b6 9. Qd2 Nd7 10. Nd1 b5 11. Ne3 Bxf3 12. Bxf3 h5 13. b3 b4 14. c4 bxc3 15. Qxc3 c5 16. dxc5 Bxc5 17. Ba3 Bxa3 18. Rxa3 Rc8 19. Qd4 Ne7 20. Be2 Nc6 21. Qd2 a5 22. f4 Nb4 23. Raa1 g6 24. Kh1 Nc5 25. Bb5+ Kf8 26. Qb2 Ne4 27. Rac1 Rxc1 28. Qxc1 Qb6 29. Qe1 Kg7 30. f5 exf5 31. Qe2 Qc7 32. Qb2 Qc3 33. Qxc3 Nxc3 34. Rc1 Rc8 35. Ba6 Rc7 36. Bf1 f4 37. Nd1 Nb5 38. Rxc7 Nxc7 39. Nb2 Ne6 40. Nd3 Nxd3 41. Bxd3 Nc5 42. Bc2 Kf8 43. e6 Nxe6 44. b4 axb4 45. a5 Ke7 46. a6 Kd6 47. a7 Nc7 48. Kg1 Kc5 49. Bb3 f6 50. Kf2 h4 51. Kf3 g5 52. h3 Kb6 53. Bxd5 Kxa7 54. Bb3 f5 55. Ke2 Kb6 56. Kd3 Kc5 57. Bf7 Nd5 58. Be6 Ne3 0-1

[Event "Groningen op-A 51st"]
[Site "Groningen"]
[Date "2013.12.26"]
[Round "5"]
[White "Dehn, Marcus"]
[Black "Efroimski, Marsel"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "2135"]
[BlackElo "2307"]
[PlyCount "58"]
[EventDate "2013.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 158 Extra"]
[Source "ChessBase"]
[SourceDate "2014.02.28"]
[SourceVersion "1"]
[SourceVersionDate "2014.02.28"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 0-0 5. Be2 d6 6. h3 c5 7. c3 Nc6 8. Nbd2 Be6 9. Ng5 Bd7 10. 0-0 cxd4 11. exd4 Nd5 12. Bh2 e5 13. dxe5 dxe5 14. Nge4 Qe7 15. c4 Nc7 16. Nb3 f5 17. Nec5 Bc8 18. Qe1 Ne6 19. Na4 Ned4 20. Nxd4 Nxd4 21. Bd3 e4 22. c5 Bd7 23. Bd6 Qg5 24. Bc4+ Kh8 25. Qd1 f4 26. Kh1 f3 27. Rg1 Qh5 28. Bh2 fxg2+ 29. Rxg2 Qxd1+ 0-1

[Event "Groningen op-A 51st"]
[Site "Groningen"]
[Date "2013.12.24"]
[Round "4"]
[White "Stolwijk, Colin"]
[Black "Dehn, Marcus"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2041"]
[BlackElo "2135"]
[PlyCount "136"]
[EventDate "2013.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 158 Extra"]
[Source "ChessBase"]
[SourceDate "2014.02.28"]
[SourceVersion "1"]
[SourceVersionDate "2014.02.28"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. Bc4 Nh6 5. d4 Nf5 6. Nf3 e6 7. 0-0 Be7 8. Be3 0-0 9. Qd2 Nd7 10. Bd3 Nf6 11. Ne4 Nxe4 12. Bxe4 Nxe3 13. fxe3 f5 14. Bd3 Bf6 15. c3 Kh8 16. e4 g6 17. Rae1 Bd7 18. exf5 exf5 19. Ne5 Be8 20. Rf3 Bg5 21. Qe2 Bf7 22. Nxf7+ Rxf7 23. Qe5+ Bf6 24. Qe6 Qf8 25. Rfe3 Re7 26. Qxe7 Bxe7 27. Rxe7 c6 28. Bc4 b5 29. Bb3 a5 30. a3 a4 31. Ba2 Rd8 32. h3 Qh6 33. R1e3 Rf8 34. d5 f4 35. Rf3 Qg5 36. Rd7 c5 37. c4 Rb8 38. Rf2 Qf5 39. Re7 Qf6 40. Ree2 bxc4 41. Bxc4 Qd4 42. Ba2 Rb6 43. Rd2 Qf6 44. Kh1 g5 45. Rfe2 f3 46. Rf2 Qf4 47. Rc2 g4 48. gxf3 g3 49. Rfe2 Qxf3+ 50. Kg1 Rf6 51. Re1 Qf5 52. Rce2 Qf2+ 53. Rxf2 gxf2+ 54. Kf1 fxe1Q+ 55. Kxe1 Rh6 56. Bc4 Rxh3 57. d6 Rh4 58. Bb5 Rd4 59. d7 Kg7 60. Bxa4 Kf6 61. Bb5 Ke7 62. a4 Kd8 63. Ke2 h5 64. Kf3 Rb4 65. Kg3 Rxb2 66. Bc4 Rb4 67. Be2 h4+ 68. Kh3 c4 0-1

