[Event "Hamburg-chT Landesliga 2122"]
[Site "Hamburg"]
[Date "2022.05.08"]
[Round "9.6"]
[White "Priebe, Jan"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2193"]
[BlackElo "2019"]
[PlyCount "67"]
[EventDate "2021.10.31"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "St Pauli II"]
[BlackTeam "Harburg Diagonale"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. Bf4 0-0 7. Qd2 Re8 8. 0-0-0 Bf8 9. f3 a6 10. g4 b5 11. h4 Bb7 12. h5 Nfd7 13. g5 Ne5 14. Qg2 Nbd7 15. Nf5 Re6 16. Qh3 Qe8 17. Nd5 Rc8 18. h6 g6 19. Ng7 Bxg7 20. hxg7 h5 21. gxh6 Kh7 22. Qg3 Bxd5 23. Rxd5 Nf6 24. Rd1 Nh5 25. Rxh5 gxh5 26. Bh3 Rxh6 27. Bxh6 Kxh6 28. Rg1 Ng6 29. Bxc8 Qxc8 30. Qg5+ Kxg7 31. f4 Kf8 32. f5 Ne7 33. Qxh5 Ke8 34. Rg7 1-0

[Event "Hamburg-chT Landesliga 2122"]
[Site "Hamburg"]
[Date "2022.05.07"]
[Round "7.6"]
[White "Stark, Thomas"]
[Black "Martin Sommerfeldt, Luis"]
[Result "0-1"]
[ECO "D36"]
[WhiteElo "1989"]
[BlackElo "2019"]
[PlyCount "96"]
[EventDate "2021.10.31"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK VI"]
[BlackTeam "Harburg Diagonale"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 0-0 7. Qc2 c6 8. Bd3 Nbd7 9. Nge2 Re8 10. 0-0 Nf8 11. Ng3 g6 12. f3 Kg7 13. Qf2 Ne6 14. Bh4 Kg8 15. Nge2 Nh5 16. Bg3 Nxg3 17. Nxg3 Bf6 18. Rad1 Qe7 19. f4 Nd8 20. Rfe1 Qb4 21. Rf1 a5 22. a3 Qb6 23. f5 Rf8 24. Qc2 Bh4 25. Rf3 g5 26. Rdf1 f6 27. Nge2 g4 28. Rf4 h5 29. Nd1 Bg5 30. R4f2 Qc7 31. Nf4 Bxf4 32. Rxf4 Nf7 33. h3 Nh6 34. e4 dxe4 35. Bc4+ Kh8 36. Qxe4 Bd7 37. Ne3 Rae8 38. Be6 gxh3 39. gxh3 Qd6 40. Nc4 Qc7 41. Re1 Bxe6 42. fxe6 Rxe6 43. Ne5 Rfe8 44. Ng6+ Kg7 45. Qxe6 Rxe6 46. Rxe6 Ng8 47. Re8 Kxg6 48. Rxg8+ Kf7 0-1

[Event "Hamburg-chT Landesliga 2122"]
[Site "Hamburg"]
[Date "2022.04.03"]
[Round "8.5"]
[White "Kuhle, Sebastian"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "A18"]
[WhiteElo "2039"]
[BlackElo "2019"]
[PlyCount "74"]
[EventDate "2021.10.31"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Weisse Dame"]
[BlackTeam "Harburg Diagonale"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 Nf6 2. Nc3 e6 3. e4 d6 4. g3 b6 5. Bg2 Bb7 6. Nge2 Be7 7. 0-0 Qc8 8. b4 0-0 9. Rb1 a6 10. Qc2 Nbd7 11. f4 c5 12. b5 axb5 13. Nxb5 Ne8 14. Nec3 Nc7 15. d3 Rd8 16. f5 Ne8 17. fxe6 fxe6 18. Bh3 Nf8 19. Nd5 Bxd5 20. exd5 Qa6 21. dxe6 Qxa2 22. Rb2 Qa4 23. Qf2 Nf6 24. Bg2 Ng6 25. Bxa8 Qxa8 26. Ra2 Qc6 27. Ra7 d5 28. Qe2 dxc4 29. dxc4 Ne4 30. Rc7 Qxe6 31. Re1 Ng5 32. Qxe6+ Nxe6 33. Rxe6 Rd1+ 34. Kg2 Rxc1 35. Rcxe7 Nxe7 36. Rxe7 Rxc4 37. Re8+ Kf7 1-0

[Event "Hamburg-chT Landesliga 2122"]
[Site "Hamburg"]
[Date "2022.03.27"]
[Round "6.5"]
[White "Gerigk, Wolf"]
[Black "Martin Sommerfeldt, Luis"]
[Result "0-1"]
[ECO "A30"]
[WhiteElo "2007"]
[BlackElo "2019"]
[PlyCount "50"]
[EventDate "2021.10.31"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK V"]
[BlackTeam "Harburg Diagonale"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 e6 5. 0-0 Be7 6. b3 0-0 7. Bb2 c5 8. Nc3 d6 9. Re1 a6 10. d4 cxd4 11. Nxd4 Bxg2 12. Kxg2 d5 13. cxd5 Nxd5 14. Nxd5 Qxd5+ 15. e4 Qb7 16. Kg1 Nd7 17. e5 Rfd8 18. f4 Bc5 19. Qe2 b5 20. Rad1 Nb6 21. h4 Nd5 22. Qe4 Qb6 23. Kh2 Rac8 24. Nc2 b4 25. Bd4 Bxd4 0-1

[Event "Hamburg-chT Landesliga 2122"]
[Site "Hamburg"]
[Date "2021.12.12"]
[Round "3.5"]
[White "Martin Sommerfeldt, Luis"]
[Black "Diekmann, Jens"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "2019"]
[BlackElo "2061"]
[PlyCount "25"]
[EventDate "2021.10.31"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Harburg Diagonale"]
[BlackTeam "Marmstorf"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Be7 5. e3 0-0 6. b3 b6 7. Bb2 Bb7 8. Be2 c5 9. cxd5 cxd4 10. Nxd4 Nxd5 11. 0-0 Nxc3 12. Bxc3 e5 13. Nf5 1/2-1/2

[Event "Oberliga Nord N 1920"]
[Site "Germany"]
[Date "2021.08.15"]
[Round "9.5"]
[White "Dietz, Juergen"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1/2-1/2"]
[ECO "A02"]
[WhiteElo "2146"]
[BlackElo "2010"]
[PlyCount "55"]
[EventDate "2019.09.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Hamburg Schachfreunde"]
[BlackTeam "Harburg Diagonale"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. f4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 e6 5. 0-0 d5 6. d3 Nbd7 7. Nc3 Be7 8. e4 dxe4 9. Ng5 Nc5 10. d4 h6 11. Nh3 Ncd7 12. Nf2 c5 13. Ncxe4 Nxe4 14. Nxe4 Qc7 15. f5 exf5 16. Bf4 Qc8 17. Nd6+ Bxd6 18. Bxd6 Bxg2 19. Kxg2 Qc6+ 20. Qf3 Qxf3+ 21. Rxf3 cxd4 22. Re1+ Kd8 23. Be7+ Kc7 24. Rxf5 f6 25. Rd5 Rhe8 26. Rxd4 Rac8 27. c4 Nb8 28. Bd6+ 1/2-1/2

[Event "Oberliga Nord N 1920"]
[Site "Germany"]
[Date "2021.08.14"]
[Round "8.5"]
[White "Martin Sommerfeldt, Luis"]
[Black "Frohberg, Marco"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2010"]
[BlackElo "2208"]
[PlyCount "67"]
[EventDate "2019.09.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Harburg Diagonale"]
[BlackTeam "Luebeck SV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. e3 b6 5. d4 Bb7 6. Nbd2 0-0 7. Bd3 d5 8. 0-0 Nbd7 9. c4 e6 10. Rc1 Ne4 11. Qc2 Nxd2 12. Nxd2 Rc8 13. cxd5 exd5 14. Nf3 Re8 15. Qe2 a5 16. Rc2 Bf8 17. Ne5 Bd6 18. f4 f6 19. Nxd7 Qxd7 20. f5 g5 21. Qf3 Qe7 22. Re2 Ba3 23. Bxa3 Qxa3 24. h4 gxh4 25. Qg4+ Kh8 26. Qxh4 Qe7 27. Rf4 Rcd8 28. e4 dxe4 29. Bxe4 Qd6 30. Rd2 Bxe4 31. Rxe4 Rxe4 32. Qxe4 Qd5 33. Qe7 Qd6 34. Qe4 1/2-1/2

[Event "Oberliga Nord N 1920"]
[Site "Germany"]
[Date "2020.03.01"]
[Round "7.4"]
[White "Martin Sommerfeldt, Luis"]
[Black "Woelk, Tom Frederic"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "2023"]
[BlackElo "2163"]
[PlyCount "176"]
[EventDate "2019.09.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 b5 3. Bg2 Bb7 4. 0-0 e6 5. b3 c5 6. Bb2 Be7 7. d3 d5 8. e3 0-0 9. Nbd2 Nbd7 10. a3 a5 11. c4 Bc6 12. Qc2 a4 13. bxa4 Rxa4 14. cxb5 Bxb5 15. Rfd1 Qa8 16. Qc3 Qa6 17. Ne1 Rb8 18. Bf1 Ne8 19. Qc1 Nd6 20. Nb1 d4 21. Nd2 Bf6 22. e4 c4 23. dxc4 Nxc4 24. Nxc4 Bxc4 25. Nd3 Qb7 26. Rd2 Qxe4 27. Bg2 Qf5 28. Nb4 Qc5 29. Qd1 Bb5 30. Bxd4 Bxd4 31. Rxd4 Nf8 32. Rc1 Qa7 33. Nc2 Rxd4 34. Qxd4 Qc7 35. Qd2 Rc8 36. Rb1 Ba4 37. Ne3 Qc3 38. Qxc3 Rxc3 39. Ra1 f5 40. Bf1 Kf7 41. Nc4 Rb3 42. Nd2 Rb2 43. Nc4 Rb8 44. Re1 Kf6 45. Re3 Nd7 46. Rd3 Rb1 47. Rc3 g5 48. f3 Ra1 49. h3 Bb5 50. Ne3 Ne5 51. Kf2 Ra2+ 52. Rc2 Rxc2+ 53. Nxc2 Bxf1 54. Kxf1 Nxf3 55. a4 Ne5 56. a5 Nc6 57. a6 Ke5 58. Nb4 Na7 59. Ke2 Kd4 60. Nd3 e5 61. Ne1 e4 62. Nc2+ Ke5 63. Ke3 f4+ 64. gxf4+ gxf4+ 65. Kf2 Kd5 66. Ne1 Ke5 67. Nc2 Nc6 68. Ne1 Kf5 69. Nc2 Na7 70. Nd4+ Ke5 71. Nc2 Nb5 72. Ne1 h6 73. Nc2 h5 74. Ne1 Kf5 75. Nc2 Kg5 76. Nd4 Na7 77. Ne6+ Kf5 78. Ng7+ Kg6 79. Ne6 Kf5 80. Ng7+ Ke5 81. Nxh5 Nc6 82. Ng7 e3+ 83. Kf1 Ke4 84. Ne6 f3 85. Ng5+ Kf4 86. Nxf3 Kxf3 87. h4 e2+ 88. Ke1 Ke3 0-1

[Event "Oberliga Nord N 1920"]
[Site "Germany"]
[Date "2020.01.19"]
[Round "5.5"]
[White "Wolf, Christoph"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2217"]
[BlackElo "2023"]
[PlyCount "35"]
[EventDate "2019.09.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 g6 2. Nc3 Bg7 3. f4 d6 4. Nf3 a6 5. a4 c5 6. Bc4 Nc6 7. 0-0 e6 8. d3 Nge7 9. Qe1 0-0 10. Qh4 Nd4 11. f5 gxf5 12. Bg5 f6 13. Bd2 Ng6 14. Qh5 fxe4 15. dxe4 Ne5 16. Nxe5 dxe5 17. Rad1 Qe8 18. Qxe8 1/2-1/2

[Event "Oberliga Nord N 1920"]
[Site "Germany"]
[Date "2019.10.20"]
[Round "2.4"]
[White "Rieper, Julian"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2105"]
[BlackElo "2023"]
[PlyCount "49"]
[EventDate "2019.09.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. f4 b6 5. Nf3 Bb7 6. Be3 Nd7 7. Bd3 e6 8. Qd2 Ne7 9. g4 h6 10. Rf1 a6 11. g5 h5 12. f5 exf5 13. exf5 gxf5 14. Nh4 c5 15. Bxf5 cxd4 16. Bxd4 Ne5 17. 0-0-0 N7c6 18. Qf4 Nxd4 19. Rxd4 b5 20. Be4 Ra7 21. Nf5 Bf8 22. Bxb7 Rxb7 23. Ne4 Ng6 24. Qe3 Qb8 25. Nexd6+ 1-0

[Event "Oberliga Nord N 1920"]
[Site "Germany"]
[Date "2019.09.29"]
[Round "1.5"]
[White "Reinecker, Kai"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2272"]
[BlackElo "2023"]
[PlyCount "83"]
[EventDate "2019.09.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. Bf4 0-0 7. Bd3 Re8 8. 0-0 Bf8 9. Re1 c6 10. e5 dxe5 11. Rxe5 Rxe5 12. Bxe5 Nbd7 13. Bg3 Qa5 14. Nb3 Qg5 15. Qe2 Nc5 16. Nxc5 Qxc5 17. Ne4 Nxe4 18. Qxe4 g6 19. Qe8 b5 20. Re1 Bb7 21. Qd7 Bc8 22. Qc7 Qb6 23. Qxb6 axb6 24. Re8 Bb7 25. Rxa8 Bxa8 26. Be4 f5 27. Bf3 Kf7 28. Bc7 b4 29. Bxb6 Bg7 30. b3 Bf8 31. Ba5 Ke6 32. c3 bxc3 33. Bxc3 Kd7 34. b4 Bb7 35. b5 Ba3 36. g3 Kc7 37. Ba5+ Kd6 38. Bb6 Bc8 39. bxc6 Ba6 40. Be3 Kc7 41. Bf4+ Kb6 42. c7 1-0

[Event "Hamburg-chT Landesliga 1819"]
[Site "Hamburg"]
[Date "2019.04.14"]
[Round "9.5"]
[White "Winter, Markus"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1/2-1/2"]
[ECO "A47"]
[WhiteElo "2023"]
[BlackElo "2023"]
[PlyCount "68"]
[EventDate "2018.10.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Eimsbuettel Union"]
[BlackTeam "St Pauli III"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. Bf4 e6 3. e3 b6 4. Nf3 Bb7 5. Nbd2 Be7 6. h3 d6 7. Be2 Nbd7 8. 0-0 0-0 9. c3 Re8 10. Bh2 Bf8 11. a4 a6 12. Qc2 h6 13. Rfd1 d5 14. Ne5 c5 15. Ndf3 Rc8 16. Nxd7 Nxd7 17. Re1 Be7 18. Qd2 Nf8 19. Bd3 Bd6 20. Bxd6 Qxd6 21. Qe2 Ra8 22. Rad1 Nd7 23. Bc2 Qc7 24. Qd3 g6 25. h4 c4 26. Qd2 Kg7 27. e4 dxe4 28. Bxe4 Bxe4 29. Rxe4 Nf6 30. Ree1 Nd5 31. Ne5 f6 32. Nf3 Qc6 33. Qc2 Nf4 34. Re3 g5 1/2-1/2

[Event "GER CupT 1718 prel4"]
[Site "Kirchweyhe"]
[Date "2018.01.13"]
[Round "1.4"]
[White "Martin Sommerfeldt, Luis"]
[Black "Rott, Georg"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2064"]
[BlackElo "2168"]
[PlyCount "89"]
[EventDate "2018.01.13"]
[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 "Muenster SK"]
[BlackTeam "Hamburg St Pauli"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d5 2. b3 c6 3. Bb2 Nf6 4. e3 Bf5 5. Be2 Nbd7 6. 0-0 h6 7. d4 e6 8. Nbd2 Bd6 9. c4 Ne4 10. h3 0-0 11. a3 Rc8 12. b4 Nxd2 13. Qxd2 Bb8 14. c5 Nf6 15. Qd1 Ne4 16. Nd2 Qc7 17. f4 Ng3 18. Rf3 Nxe2+ 19. Qxe2 Qd7 20. Rf2 Rce8 21. Raf1 f6 22. Qh5 Bd3 23. Rd1 Bh7 24. Rdf1 Bc7 25. g4 Qf7 26. Qxf7+ Rxf7 27. Kg2 Bd3 28. Rd1 Rfe7 29. Kg1 Bc2 30. Re1 Bd3 31. e4 e5 32. fxe5 fxe5 33. exd5 cxd5 34. dxe5 Bxe5 35. Bxe5 Rxe5 36. Rxe5 Rxe5 37. Rf3 Be2 38. Rb3 Bb5 39. Nf3 Re4 40. Kf2 d4 41. a4 Bc4 42. Rb2 d3 43. b5 Bd5 44. Rd2 Rxa4 45. Rxd3 1/2-1/2

[Event "Blankenese op 1st"]
[Site "Hamburg"]
[Date "2017.10.03"]
[Round "6.6"]
[White "Ertan, Can"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2377"]
[BlackElo "2015"]
[PlyCount "67"]
[EventDate "2017.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 d6 2. d4 e5 3. c3 Nf6 4. Bc4 Be7 5. Nf3 0-0 6. dxe5 Nxe4 7. Bd5 Nc5 8. b4 Ne6 9. 0-0 dxe5 10. Nxe5 c6 11. Bb3 Qxd1 12. Rxd1 a5 13. bxa5 Rxa5 14. Nc4 Ra6 15. Nd6 c5 16. Nxc8 Rxc8 17. Nd2 Rd6 18. Re1 Rcd8 19. Ne4 R6d7 20. Be3 b6 21. Rab1 Ra7 22. Bxe6 fxe6 23. Rxb6 Rxa2 24. Rxe6 Bf8 25. Bxc5 Nd7 26. Bd4 Rc8 27. h4 Nc5 28. Nxc5 Bxc5 29. Re8+ Rxe8 30. Rxe8+ Kf7 31. Rd8 Bf8 32. Rd7+ Kg6 33. g3 h5 34. Kg2 1-0

[Event "Blankenese op 1st"]
[Site "Hamburg"]
[Date "2017.10.03"]
[Round "4.15"]
[White "Kunow, Frank"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "1856"]
[BlackElo "2015"]
[PlyCount "109"]
[EventDate "2017.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 5. 0-0 e6 6. d4 d6 7. Nc3 Nbd7 8. Re1 Be7 9. e4 cxd4 10. Nxd4 Qc8 11. Be3 a6 12. Rc1 Ra7 13. f4 0-0 14. Bf2 Ba8 15. f5 e5 16. Nd5 Bd8 17. Nb3 Bxd5 18. cxd5 Rc7 19. Qe2 Nc5 20. Nxc5 bxc5 21. g4 Nd7 22. h4 Qb8 23. g5 a5 24. Bh3 f6 25. Be3 Re8 26. Qh5 Be7 27. Rc2 Nf8 28. g6 Qb4 29. gxh7+ Kh8 30. Ree2 Qb5 31. Rg2 Bd8 32. Bd2 Ra7 33. Bc3 Ree7 34. Qf3 a4 35. a3 Ba5 36. Bg4 Reb7 37. Bh5 Bxc3 38. Rxc3 Qa5 39. Bg6 Ra8 40. Qg3 Raa7 41. h5 Qd8 42. h6 Rc7 43. Qh4 Rab7 44. Rcg3 Ra7 45. Bh5 Rcb7 46. hxg7+ Rxg7 47. Rxg7 Rxg7 48. Rxg7 Kxg7 49. Bd1 Nxh7 50. Bxa4 Ng5 51. Qh5 Nxe4 52. Qg6+ Kh8 53. Qh6+ Kg8 54. Qg6+ Kh8 55. Qh6+ 1/2-1/2

[Event "Blankenese op 1st"]
[Site "Hamburg"]
[Date "2017.10.03"]
[Round "1.23"]
[White "Martin Sommerfeldt, Luis"]
[Black "Glueck, Ulrich"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2015"]
[BlackElo "1611"]
[PlyCount "58"]
[EventDate "2017.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nf3 c5 2. b3 Nc6 3. Bb2 Nf6 4. e3 e6 5. Be2 Be7 6. 0-0 0-0 7. d4 cxd4 8. exd4 b6 9. c4 d5 10. Nbd2 Bb7 11. a3 a5 12. Re1 Re8 13. Bd3 Rc8 14. Qc2 h6 15. Nf1 Qc7 16. Ne3 Bd6 17. h3 e5 18. Nxd5 Nxd5 19. cxd5 Nxd4 20. Nxd4 exd4 21. Rxe8+ Rxe8 22. Qxc7 Bxc7 23. Bc4 d3 24. a4 Bd6 25. Bc3 Kf8 26. Rd1 Re7 27. Kf1 Bc5 28. Rxd3 Rd7 29. Rd2 f6 1-0

[Event "Blankenese op 1st"]
[Site "Hamburg"]
[Date "2017.10.03"]
[Round "7.16"]
[White "Martin Sommerfeldt, Luis"]
[Black "Raddatz, Michael"]
[Result "1-0"]
[ECO "B24"]
[WhiteElo "2015"]
[BlackElo "1960"]
[PlyCount "83"]
[EventDate "2017.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nc3 c5 2. e4 g6 3. g3 Bg7 4. Bg2 Nc6 5. f4 b6 6. Nf3 e5 7. 0-0 exf4 8. gxf4 Nge7 9. d3 0-0 10. Ne2 d6 11. c3 Bg4 12. Qe1 Rc8 13. Qh4 Bd7 14. Ng5 h6 15. Nf3 f5 16. e5 Be6 17. d4 cxd4 18. Rd1 dxe5 19. fxe5 Nd5 20. Qxd8 Rfxd8 21. Nfxd4 Nxd4 22. Nxd4 Ne7 23. Bxh6 Rxd4 24. cxd4 Bxh6 25. d5 Be3+ 26. Kh1 f4 27. dxe6 g5 28. Bf3 Nf5 29. Rg1 Kf8 30. Rxg5 Nd4 31. Bg4 Rc2 32. Rh5 Nc6 33. Rd1 Bd2 34. Bf5 Rxb2 35. Rh8+ Ke7 36. Rh7+ Kf8 37. Rh8+ Ke7 38. Rh7+ Kf8 39. Rf7+ Ke8 40. Rg1 Ne7 41. Rxe7+ Kxe7 42. Rg7+ 1-0

[Event "Blankenese op 1st"]
[Site "Hamburg"]
[Date "2017.10.03"]
[Round "5.15"]
[White "Martin Sommerfeldt, Luis"]
[Black "Riering, Berthold"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2015"]
[BlackElo "1917"]
[PlyCount "73"]
[EventDate "2017.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Bg4 3. Bb2 Nd7 4. d4 e6 5. e3 Bd6 6. Be2 f5 7. Nbd2 Ngf6 8. c4 c6 9. h3 Bxf3 10. gxf3 0-0 11. Qc2 f4 12. e4 e5 13. 0-0-0 exd4 14. exd5 cxd5 15. Bxd4 Ne5 16. Kb1 Nc6 17. Bb2 Re8 18. Bf1 Nb4 19. Qf5 Qc8 20. Qg5 h6 21. Qg6 Be5 22. Rg1 Qd7 23. Bxe5 Rxe5 24. Qxf6 Rae8 25. Qxf4 Re1 26. Bg2 R1e2 27. cxd5 Nxd5 28. Qd4 Rc8 29. Ne4 Rcc2 30. Qxd5+ Qxd5 31. Rxd5 Rb2+ 32. Kc1 Rxa2 33. Kd1 Reb2 34. Nd2 Rxd2+ 35. Rxd2 Ra1+ 36. Ke2 Rxg1 37. Bf1 1-0

[Event "Blankenese op 1st"]
[Site "Hamburg"]
[Date "2017.10.03"]
[Round "3.14"]
[White "Martin Sommerfeldt, Luis"]
[Black "Schwarzkopf, Joerg"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2015"]
[BlackElo "1809"]
[PlyCount "42"]
[EventDate "2017.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nf3 d6 2. e4 g6 3. d4 Bg7 4. Bd3 e5 5. c3 Nc6 6. h3 Nf6 7. Be3 0-0 8. Nbd2 Re8 9. 0-0 b6 10. a3 a5 11. Qe2 Bb7 12. Nh2 d5 13. Qf3 dxe4 14. Nxe4 exd4 15. cxd4 Nd5 16. Rad1 Nxd4 17. Bxd4 Bxd4 18. Bc4 Bg7 19. Ng4 Kf8 20. Ne3 c6 21. Nc3 Bxc3 1/2-1/2

[Event "Blankenese op 1st"]
[Site "Hamburg"]
[Date "2017.10.03"]
[Round "2.20"]
[White "Mi, Gufeng"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1/2-1/2"]
[ECO "A08"]
[WhiteElo "1481"]
[BlackElo "2015"]
[PlyCount "198"]
[EventDate "2017.09.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 4. 0-0 Be7 5. d3 b6 6. Nbd2 Bb7 7. e4 c5 8. c3 dxe4 9. dxe4 0-0 10. e5 Nfd7 11. Re1 Qc7 12. Qe2 Nc6 13. Nf1 Rfb8 14. Bf4 a6 15. h4 b5 16. a3 Nb6 17. N1h2 Nd5 18. Bg5 Bf8 19. h5 h6 20. Qc2 Nce7 21. Bd2 Bc6 22. g4 a5 23. Nh4 Be8 24. N2f3 g6 25. g5 gxh5 26. gxh6 Ng6 27. h7+ Kh8 28. Re4 Nde7 29. Ng5 Bg7 30. Nxg6+ Nxg6 31. Rae1 Bxe5 32. Rxe5 Nxe5 33. Qe4 f6 34. Nxe6 Qe7 35. Nf4 Qxh7 36. Qe3 Ra7 37. Qxc5 Rg7 38. Ne6 Nf3+ 39. Kh1 Rxg2 40. Qf8+ Qg8 41. Qh6+ Qh7 42. Qf8+ Rg8 43. Qxf6+ Rg7 44. Nxg7 Qxg7 45. Qxf3 Bg6 46. Qg3 Rg8 47. Kh2 Qf6 48. Qe5 Qxe5+ 49. Rxe5 Be8 50. Be3 a4 51. Re7 Rf8 52. Bd4+ Kg8 53. Rg7+ Kh8 54. Rf7+ Kg8 55. Rxf8+ Kxf8 56. Kg3 Kf7 57. Kh4 Kg6 58. Be5 Kf5 59. f4 Ke4 60. Kg5 Kd5 61. Kf6 h4 62. Bb8 h3 63. f5 Kc4 64. Ke7 Bh5 65. f6 Kb3 66. Be5 h2 67. Bxh2 Kxb2 68. Bd6 Kxc3 69. Bb4+ Kc4 70. f7 Bxf7 71. Kxf7 Kd5 72. Ke7 Kc6 73. Kd8 Kb6 74. Kd7 Kb7 75. Kd6 Kb6 76. Bc5+ Kb7 77. Kd5 Kc7 78. Kd4 Kc6 79. Bf8 Kb6 80. Kc3 Kc6 81. Kb4 Kb6 82. Be7 Ka6 83. Bf8 Kb6 84. Be7 Ka6 85. Bd8 Ka7 86. Kxb5 Kb7 87. Kxa4 Ka6 88. Bh4 Ka7 89. Bg3 Kb7 90. Kb5 Ka8 91. a4 Kb7 92. Bh4 Ka7 93. a5 Kb7 94. Bf2 Kb8 95. Kb6 Ka8 96. Kb5 Kb7 97. a6+ Ka8 98. Kb6 Kb8 99. Bg3+ Ka8 1/2-1/2

[Event "Harburg-chA 12th"]
[Site "Hamburg"]
[Date "2017.08.06"]
[Round "5"]
[White "Lohse, Marc"]
[Black "Martin Sommerfeldt, Luis"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2021"]
[BlackElo "2026"]
[PlyCount "76"]
[EventDate "2017.08.06"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. e4 d6 2. d4 e5 3. d5 Nf6 4. Bd3 Nbd7 5. Be3 Be7 6. Nd2 0-0 7. g4 c6 8. c4 Qa5 9. g5 Ne8 10. a3 c5 11. Ne2 a6 12. Nc3 Qd8 13. h4 Nb8 14. Qc2 g6 15. 0-0-0 h5 16. gxh6 Bxh4 17. Nf3 Be7 18. h7+ Kh8 19. Bh6 Ng7 20. Rdg1 Nd7 21. Qd2 Nf6 22. Bxg7+ Kxg7 23. Qh6+ Kh8 24. Nh4 Ng4 25. Nxg6+ fxg6 26. Qxg6 Qe8 27. Rxg4 Bxg4 28. Qxg4 Rxf2 29. Nd1 Rf4 30. Qg3 Qf7 31. Be2 Rxe4 32. Rf1 Qxh7 33. Bd3 Qh6+ 34. Kb1 Rf4 35. Rg1 Raf8 36. Qg2 Rh4 37. Bf5 Rh2 38. Qg3 Rh1 0-1

[Event "Harburg-chA 12th"]
[Site "Hamburg"]
[Date "2017.08.06"]
[Round "4"]
[White "Martin Sommerfeldt, Luis"]
[Black "Reddmann, Hauke"]
[Result "1/2-1/2"]
[ECO "A47"]
[WhiteElo "2026"]
[BlackElo "2230"]
[PlyCount "97"]
[EventDate "2017.08.06"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. b3 b6 4. Bb2 Bb7 5. e3 c5 6. Be2 cxd4 7. exd4 d6 8. 0-0 Be7 9. c4 0-0 10. Nbd2 Nbd7 11. Re1 Re8 12. Nf1 Nf8 13. Ne3 Ng6 14. a3 Rc8 15. Bf1 Rc7 16. Rc1 Qa8 17. Nd2 d5 18. cxd5 Rxc1 19. Qxc1 Rc8 20. Qb1 Nxd5 21. Nxd5 Bxd5 22. g3 Nf8 23. Nc4 Nd7 24. Qd3 Nf6 25. Ne3 Be4 26. Qd2 Bb7 27. Rc1 Ne4 28. Rxc8+ Qxc8 29. Qd1 Nf6 30. Bg2 Bxg2 31. Kxg2 Qc6+ 32. f3 h5 33. Qc1 Qxc1 34. Bxc1 Kf8 35. Kf2 Ke8 36. Ke2 b5 37. Kd3 Kd7 38. Bb2 g6 39. Bc1 Bd6 40. Ng2 Nd5 41. Ne3 Kc6 42. Nxd5 Kxd5 43. a4 a6 44. axb5 axb5 45. Bg5 Bc7 46. Bf6 Bb6 47. Ke3 Ba5 48. Kd3 Be1 49. Ke2 1/2-1/2

[Event "Harburg-chA 12th"]
[Site "Hamburg"]
[Date "2017.08.05"]
[Round "2"]
[White "Martin Sommerfeldt, Luis"]
[Black "Franke, Lutz"]
[Result "0-1"]
[ECO "A80"]
[WhiteElo "2026"]
[BlackElo "2071"]
[PlyCount "96"]
[EventDate "2017.08.06"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. Nf3 e6 2. b3 f5 3. Bb2 Nf6 4. e3 b6 5. d4 Bb7 6. Nbd2 Be7 7. Bd3 0-0 8. Qe2 Ne4 9. a3 d5 10. Ne5 Nxd2 11. Qxd2 Nd7 12. Nxd7 Qxd7 13. 0-0-0 a5 14. a4 Ba6 15. f4 c6 16. Rdg1 Bb4 17. c3 Bxd3 18. Qxd3 Bd6 19. Kc2 b5 20. Ra1 Rfb8 21. Rhb1 Rb6 22. Bc1 Rab8 23. axb5 Rxb5 24. Bd2 c5 25. dxc5 Rxc5 26. Kd1 Rcb5 27. c4 dxc4 28. bxc4 Rxb1+ 29. Rxb1 Rxb1+ 30. Qxb1 Bb4 31. Qc2 Kf7 32. Ke2 Qxd2+ 33. Qxd2 Bxd2 34. Kxd2 Ke7 35. c5 Kd7 36. Kc3 Kc6 37. Kc4 h6 38. h3 h5 39. h4 g6 40. g3 a4 41. Kb4 a3 42. Kxa3 Kxc5 43. Kb3 Kd5 44. Kc3 Ke4 45. Kd2 Kf3 46. Kd3 Kxg3 47. Ke2 Kxh4 48. Kf2 Kg4 0-1

[Event "Harburg-chA 12th"]
[Site "Hamburg"]
[Date "2017.08.05"]
[Round "3"]
[White "Ramme, Christoph"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "A54"]
[WhiteElo "2116"]
[BlackElo "2026"]
[PlyCount "83"]
[EventDate "2017.08.06"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Nbd7 5. g3 Be7 6. Bg2 c6 7. 0-0 a5 8. b3 0-0 9. Bb2 Qc7 10. Rc1 Re8 11. e3 Bf8 12. Na4 Qb8 13. Qc2 b5 14. cxb5 cxb5 15. Nc3 Bb7 16. Rfd1 b4 17. Na4 Ra6 18. dxe5 dxe5 19. Qc7 Qa8 20. Rxd7 Bxf3 21. Bxf3 Qxf3 22. Rxf7 Qh5 23. Qc4 Qxf7 24. Qxa6 Qh5 25. Kg2 Qf5 26. Qc4+ Kh8 27. Nb6 Ng4 28. Qe2 e4 29. Rd1 Qg6 30. Nc4 Bc5 31. h3 Nh6 32. Rd5 Be7 33. Qh5 Qxh5 34. Rxh5 Nf7 35. Rxa5 Kg8 36. Bd4 Rc8 37. Nb6 Rb8 38. Ra8 Rxa8 39. Nxa8 Nd8 40. Nc7 Kf7 41. f3 exf3+ 42. Kxf3 1-0

[Event "Harburg-chA 12th"]
[Site "Hamburg"]
[Date "2017.08.04"]
[Round "1"]
[White "Kneip, Jakob"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "A42"]
[WhiteElo "2085"]
[BlackElo "2026"]
[PlyCount "79"]
[EventDate "2017.08.06"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. c4 Bg7 4. Nc3 Nd7 5. Be3 b6 6. Qd2 Bb7 7. f3 e6 8. Bd3 h6 9. Nge2 Ne7 10. h4 a6 11. h5 g5 12. d5 Ne5 13. Nd4 Nxd3+ 14. Qxd3 Qd7 15. g4 c5 16. dxc6 Nxc6 17. Nxc6 Qxc6 18. Bd4 Be5 19. 0-0-0 Ke7 20. Kb1 Rhd8 21. Rhe1 Ke8 22. Nd5 Rab8 23. Nxb6 a5 24. Nd5 Ba6 25. Ne3 Bf4 26. Bf6 Rd7 27. Rc1 Rdb7 28. Rc2 Qa4 29. Nd1 Be5 30. Bxe5 dxe5 31. Qc3 Rb4 32. Qxe5 Rd8 33. b3 Bxc4 34. Nb2 Qb5 35. Nxc4 Rxb3+ 36. axb3 Qxb3+ 37. Nb2 Qb4 38. Rec1 a4 39. Qh8+ Ke7 40. Rc7+ 1-0

[Event "Hamburg-chT Landesliga 1617"]
[Site "Hamburg"]
[Date "2017.05.14"]
[Round "9.6"]
[White "Martin Sommerfeldt, Luis"]
[Black "Woelk, Tom Frederic"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "2081"]
[BlackElo "2033"]
[PlyCount "120"]
[EventDate "2016.10.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "St Pauli II"]
[BlackTeam "Hamburg Diogenes II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. d4 b6 5. e3 Bb7 6. Be2 0-0 7. 0-0 d6 8. c4 e6 9. Nbd2 c5 10. Qc2 cxd4 11. Nxd4 d5 12. Rfd1 Nc6 13. Nxc6 Bxc6 14. cxd5 Bxd5 15. e4 Rc8 16. Qb1 Bb7 17. f3 Qc7 18. Nc4 Rcd8 19. Qc1 Rxd1+ 20. Bxd1 Rd8 21. Qe3 b5 22. Be5 Qd7 23. Qc3 bxc4 24. Bxf6 Bxf6 25. Qxf6 Qd2 26. h3 Qe1+ 27. Kh2 Rxd1 28. Rxd1 Qxd1 29. bxc4 Qd7 30. Qe5 Qc8 31. c5 a6 32. Qd6 h5 33. h4 Qc6 34. Qe5 Kf8 35. Kh3 Ke7 36. Qg5+ Ke8 37. Qe5 Bc8 38. Kg3 Bd7 39. Kf4 Ke7 40. Kg5 Be8 41. Qf6+ Kd7 42. Qd4+ Kc8 43. Kf6 e5+ 44. Kxe5 Qe6+ 45. Kf4 Qxa2 46. Qd6 Qe6 47. Qd4 f6 48. Qb4 Bb5 49. Ke3 Qe5 50. f4 Qa1 51. Kf3 Qf1+ 52. Kg3 Qc4 53. Qb2 Qe6 54. Kf2 Qxe4 55. Qxf6 Bc6 56. Qf8+ Kb7 57. Qf7+ Ka8 58. Qf8+ Ka7 59. Qd6 Qxg2+ 60. Ke3 Qf3+ 0-1

[Event "Hamburg-chT Landesliga 1617"]
[Site "Hamburg"]
[Date "2017.05.13"]
[Round "8.5"]
[White "Martin Sommerfeldt, Luis"]
[Black "Wahl, Daniel"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "2081"]
[BlackElo "1958"]
[PlyCount "113"]
[EventDate "2016.10.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "St Pauli II"]
[BlackTeam "Johanneum Eppendorf II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 f5 2. d4 g6 3. Bg5 Bg7 4. Qd3 Nf6 5. Nbd2 d5 6. h4 Ne4 7. Bf4 e6 8. Ne5 Nd7 9. Nxd7 Bxd7 10. f3 Nxd2 11. Qxd2 c5 12. e3 Qb6 13. c3 Rc8 14. 0-0-0 Ba4 15. Re1 Kf7 16. Kb1 Rc6 17. Be5 Bxe5 18. dxe5 Qc7 19. h5 Qxe5 20. e4 Rb6 21. hxg6+ hxg6 22. Rxh8 Qxh8 23. exd5 e5 24. d6 Bd7 25. Qd5+ Be6 26. Qxc5 Qd8 27. Rd1 Kf6 28. Bb5 Bd7 29. Bc4 Rc6 30. Qd5 Qf8 31. Bb3 Rb6 32. g3 Qe8 33. Re1 Qe6 34. Rxe5 Qxd6 35. f4 Qxd5 36. Bxd5 Rd6 37. c4 Bc6 38. Kc2 Bxd5 39. cxd5 g5 40. Kc3 Ra6 41. a3 gxf4 42. gxf4 Rb6 43. b3 Rd6 44. Kc4 Rb6 45. Re3 Rd6 46. Kc5 Rd8 47. d6 Rc8+ 48. Kd5 Rc1 49. Re6+ Kf7 50. Re7+ Kf6 51. Rxb7 Rd1+ 52. Kc6 Rc1+ 53. Kd7 Rc3 54. Kd8 Ke6 55. d7 Kd6 56. Ke8 Re3+ 57. Kf8 1-0

[Event "Hamburg CC Easter op 3rd"]
[Site "Hamburg"]
[Date "2017.04.17"]
[Round "7"]
[White "Martin Sommerfeldt, Luis"]
[Black "Foerster, Andreas"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2081"]
[BlackElo "2206"]
[PlyCount "84"]
[EventDate "2017.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. Nf3 c5 2. b3 Nf6 3. Bb2 g6 4. e3 Bg7 5. Be2 0-0 6. 0-0 Nc6 7. c4 b6 8. Nc3 Bb7 9. a3 d5 10. d3 d4 11. exd4 Nxd4 12. Nxd4 cxd4 13. Nb1 e5 14. Nd2 e4 15. dxe4 Nxe4 16. Nxe4 Bxe4 17. Bd3 Bb7 18. Re1 Qh4 19. g3 Qh3 20. Be4 Bxe4 21. Rxe4 Qf5 22. Rf4 Qd7 23. Qf3 Rad8 24. Rd1 d3 25. Bxg7 Kxg7 26. Rd2 f5 27. Qd1 Rf6 28. Rf3 Rd6 29. Re3 f4 30. Qa1+ Kg8 31. Rf3 Rd4 32. Qe1 Qd6 33. gxf4 Rxf4 34. Rfxd3 Qxd3 35. Rxd3 Rxd3 36. Qe8+ Rf8 37. Qe6+ Rf7 38. b4 h5 39. Kf1 Kg7 40. Qe5+ Kh7 41. a4 Rd1+ 42. Kg2 Rdd7 1-0

[Event "Hamburg CC Easter op 3rd"]
[Site "Hamburg"]
[Date "2017.04.16"]
[Round "6"]
[White "Hegeler, Anja"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "2145"]
[BlackElo "2081"]
[PlyCount "43"]
[EventDate "2017.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. e4 d6 2. d4 e5 3. Nf3 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. h3 0-0 7. Bd3 Re8 8. 0-0 a6 9. a4 Bf8 10. Qf3 Nbd7 11. Bg5 c6 12. Qg3 Kh8 13. a5 h6 14. Be3 d5 15. exd5 cxd5 16. Qh4 Ne5 17. Bg5 Nxd3 18. Bxf6 Qxf6 19. Qxf6 gxf6 20. cxd3 Be6 21. Na4 Rad8 22. Rac1 1/2-1/2

[Event "Hamburg CC Easter op 3rd"]
[Site "Hamburg"]
[Date "2017.04.16"]
[Round "5"]
[White "Martin Sommerfeldt, Luis"]
[Black "Reddmann, Hauke"]
[Result "1/2-1/2"]
[ECO "A01"]
[WhiteElo "2081"]
[BlackElo "2226"]
[PlyCount "30"]
[EventDate "2017.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Bg4 3. e3 e5 4. h3 Bxf3 5. Qxf3 Nc6 6. Bb2 Nf6 7. Bb5 Bd6 8. d3 0-0 9. Bxc6 bxc6 10. Nd2 Qe7 11. 0-0 Ba3 12. Bxa3 Qxa3 13. Rfb1 a5 14. Qd1 a4 15. Qc1 Qxc1+ 1/2-1/2

[Event "Hamburg CC Easter op 3rd"]
[Site "Hamburg"]
[Date "2017.04.15"]
[Round "4"]
[White "Kotyk, Michael"]
[Black "Martin Sommerfeldt, Luis"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1929"]
[BlackElo "2081"]
[PlyCount "94"]
[EventDate "2017.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. Be3 Nd7 5. f3 e6 6. Qd2 h6 7. Nge2 a6 8. a4 b6 9. g4 Bb7 10. Ng3 Ne7 11. Be2 c6 12. b4 Qc7 13. Ra2 Kf8 14. Kf2 Kg8 15. Kg2 Rc8 16. a5 b5 17. Rd1 Kh7 18. Qe1 Rhe8 19. Qg1 c5 20. Bxb5 cxb4 21. Bxd7 Qxd7 22. Na4 Qb5 23. Nb6 Rc7 24. Kh1 Nc8 25. Nxc8 Rexc8 26. Qf2 Rc3 27. Rb1 Ba8 28. Qd2 R3c4 29. Ne2 f5 30. Ng3 fxg4 31. fxg4 e5 32. d5 Rxe4 33. Nxe4 Bxd5 34. Qxb4 Bxe4+ 35. Kg1 Qd5 36. Rab2 Rc4 37. Qd2 Qe6 38. Qe2 Bc6 39. h3 Qd5 40. Kh2 Qe4 41. Qf2 Rc3 42. Re1 Qd5 43. Qd2 Qc4 44. Qxd6 Qe4 45. Qd2 Rxe3 46. Rb4 Qf3 47. Rb3 Qg3# 0-1

[Event "Hamburg CC Easter op 3rd"]
[Site "Hamburg"]
[Date "2017.04.15"]
[Round "3"]
[White "Martin Sommerfeldt, Luis"]
[Black "Tscherepanov, Leon"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "2081"]
[BlackElo "1809"]
[PlyCount "51"]
[EventDate "2017.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 e6 3. Bb2 d5 4. e3 Bd6 5. d4 0-0 6. Bd3 Nc6 7. a3 Ne7 8. c4 c6 9. Nbd2 Ng6 10. Qc2 Bd7 11. 0-0-0 c5 12. Kb1 Rc8 13. dxc5 Bxc5 14. Qc3 Bd6 15. h4 Ne7 16. Bc2 dxc4 17. Nxc4 Ned5 18. Qd3 Bc5 19. g4 g6 20. h5 Bb5 21. hxg6 Bxc4 22. gxh7+ Kh8 23. bxc4 Qb6 24. cxd5 Be7 25. d6 Rxc2 26. Qxc2 1-0

[Event "Hamburg CC Easter op 3rd"]
[Site "Hamburg"]
[Date "2017.04.14"]
[Round "2"]
[White "Krause, Jonah"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "2341"]
[BlackElo "2081"]
[PlyCount "73"]
[EventDate "2017.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Nf3 0-0 6. Bg2 d6 7. Nc3 Nbd7 8. 0-0 c6 9. e4 e5 10. h3 Re8 11. Be3 Bf8 12. d5 c5 13. Ne1 a6 14. a4 b6 15. Nd3 Re7 16. b4 cxb4 17. Nxb4 Qc7 18. Nc6 Re8 19. a5 bxa5 20. Qa4 Bb7 21. Rfb1 Bxc6 22. dxc6 Nc5 23. Bxc5 dxc5 24. Rb7 Qd6 25. Rd1 Qe6 26. Nd5 Bd6 27. Qxa5 Rec8 28. Nb6 Ne8 29. Nxa8 Rxa8 30. Rd7 Bf8 31. c7 Rc8 32. Rd8 Nxc7 33. Qxc5 Rxd8 34. Rxd8 Ne8 35. Qd5 Nc7 36. Qb7 Qe7 37. Rc8 1-0

[Event "Hamburg CC Easter op 3rd"]
[Site "Hamburg"]
[Date "2017.04.14"]
[Round "1"]
[White "Martin Sommerfeldt, Luis"]
[Black "Kort, Felix"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "2081"]
[BlackElo "1572"]
[PlyCount "137"]
[EventDate "2017.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Nc6 3. Bb2 Bg4 4. e3 e5 5. h3 Bxf3 6. Qxf3 Nf6 7. Bb5 Bd6 8. Nc3 e4 9. Qe2 a6 10. Bxc6+ bxc6 11. 0-0-0 Nd7 12. d3 f5 13. g4 Qg5 14. gxf5 Qxf5 15. dxe4 dxe4 16. Qc4 Qxf2 17. Qxe4+ Kd8 18. Rdf1 Qg3 19. Rf3 Qg6 20. Qxc6 Ra7 21. Rff1 Bc5 22. Qxg6 Bxe3+ 23. Kb1 hxg6 24. Nd5 Bh6 25. Rf7 Rh7 26. Rd1 Bg5 27. Rxd7+ Kxd7 28. Nf6+ Ke7 29. Nxh7 Bf6 30. Ba3+ Ke8 31. Nf8 g5 32. Ne6 Kf7 33. Nd8+ Kg6 34. Bc5 Ra8 35. Ne6 Rh8 36. Nxc7 Rxh3 37. Nxa6 g4 38. Nb4 g3 39. Nd3 Kf5 40. Rf1+ Ke4 41. Ne1 Bc3 42. Kc1 g5 43. Kd1 g4 44. b4 Rh2 45. a4 g2 46. Rg1 Rh1 47. Nxg2 Rxg1+ 48. Bxg1 Bxb4 49. Ke2 Kd5 50. Ne3+ Kd4 51. Nxg4+ Kc3 52. Kd1 Ba5 53. Bc5 Kc4 54. Be7 Kc3 55. Ne3 Kd4 56. Nf5+ Kc3 57. Nd6 Kd4 58. Nb7 Bc7 59. Bb4 Kd5 60. Kd2 Kc6 61. Na5+ Kb6 62. Nc4+ Ka6 63. Kd3 Bd8 64. Kd4 Bf6+ 65. Kd5 Bd8 66. Kc6 Bf6 67. Na3 Be5 68. Nb5 Bf4 69. Nc7+ 1-0

[Event "Hamburg-chT Landesliga 1516"]
[Site "Hamburg"]
[Date "2016.04.23"]
[Round "8.2"]
[White "Martin Sommerfeldt, Luis"]
[Black "Mandelbaum, Peter Rene"]
[Result "1/2-1/2"]
[ECO "A15"]
[WhiteElo "2040"]
[BlackElo "2137"]
[PlyCount "101"]
[EventDate "2015.09.20"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "St Pauli"]
[BlackTeam "Hamburg Weisse Dame"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. g3 0-0 5. Bg2 d6 6. c4 e5 7. d3 Nc6 8. 0-0 Nh5 9. Nc3 f5 10. Nd2 Ne7 11. e3 Nf6 12. f4 exf4 13. gxf4 d5 14. Nf3 c5 15. Nb5 a6 16. Na3 d4 17. Nc2 dxe3 18. Ne5 Ng4 19. Nxg4 Bxb2 20. Ngxe3 Bxa1 21. Qxa1 Be6 22. Qe5 Qd7 23. Qxc5 Rac8 24. Qe5 Nc6 25. Qc3 Rcd8 26. Nd5 Qg7 27. Qxg7+ Kxg7 28. Rd1 Rf7 29. Kf2 Re8 30. Nc3 Nd8 31. d4 Rd7 32. d5 Bg8 33. Nd4 Kf6 34. Nf3 h6 35. h4 b6 36. Nd4 Nb7 37. Na4 Rd6 38. Nc6 b5 39. cxb5 axb5 40. Nc3 Ra8 41. Rd2 Rc8 42. Nxb5 Rcxc6 43. dxc6 Rxd2+ 44. Ke3 Nd6 45. Kxd2 Nxb5 46. a4 Na7 47. Kc3 Ke7 48. b4 Kd6 49. b5 Kc5 50. Bf1 Bd5 51. Bd3 1/2-1/2

[Event "Oberliga Nord N 1516"]
[Site "Germany"]
[Date "2016.04.10"]
[Round "9.8"]
[White "Martin Sommerfeldt, Luis"]
[Black "Zum Felde, Michael"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2102"]
[BlackElo "2154"]
[PlyCount "90"]
[EventDate "2015.09.20"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]
[WhiteTeam "St Pauli"]
[BlackTeam "Bargteheide"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d5 2. b3 Nf6 3. Bb2 Nbd7 4. e3 g6 5. Be2 Bg7 6. d4 0-0 7. Nbd2 Ne4 8. c4 Nxd2 9. Qxd2 Nf6 10. cxd5 Qxd5 11. Bc4 Qd6 12. Bd3 Bf5 13. Bxf5 gxf5 14. Qc2 e6 15. 0-0 Rfd8 16. Rac1 c6 17. Kh1 Qd5 18. Qe2 Ne4 19. Rfd1 a5 20. Ne1 a4 21. f3 Nf6 22. Nd3 axb3 23. Rc5 Qd6 24. axb3 Nd7 25. Rcc1 Ra2 26. Qe1 Qe7 27. Ra1 Rda8 28. Rxa2 Rxa2 29. Ra1 Rxa1 30. Qxa1 Qd6 31. Qa5 Bf8 32. Qc3 Bg7 33. Qc2 Qd5 34. Nf4 Qb5 35. Kg1 Bh6 36. g3 Nf6 37. e4 fxe4 38. fxe4 Nh5 39. Nxh5 Qxh5 40. Qd3 Qg4 41. Kg2 f5 42. exf5 Qxf5 43. Qe2 Kf7 44. Qf3 Ke7 45. Ba3+ Kf7 1/2-1/2

[Event "Oberliga Nord N 1415"]
[Site "Germany"]
[Date "2015.02.22"]
[Round "7.8"]
[White "Kramer, Svend Erik"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2054"]
[BlackElo "2112"]
[PlyCount "46"]
[EventDate "2014.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Neumuenster Agon"]
[BlackTeam "Hamburg St Pauli"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d6 2. d4 e5 3. dxe5 dxe5 4. Qxd8+ Kxd8 5. Bc4 f6 6. Be3 Bd6 7. Nc3 c6 8. 0-0-0 Ke7 9. Nge2 Be6 10. Bxe6 Kxe6 11. g3 Nh6 12. Bxh6 gxh6 13. g4 Bc5 14. Ng3 Nd7 15. Nf5 Nb6 16. f3 Rhd8 17. Rxd8 Rxd8 18. Rd1 Rxd1+ 19. Nxd1 Bg1 20. h3 Bh2 21. b3 Bf4+ 22. Kb2 Nc8 23. c4 Nd6 1/2-1/2

[Event "Oberliga Nord N 1415"]
[Site "Germany"]
[Date "2014.11.09"]
[Round "3.8"]
[White "Martin Sommerfeldt, Luis"]
[Black "Laqua, Christian"]
[Result "1-0"]
[ECO "A41"]
[WhiteElo "2112"]
[BlackElo "2127"]
[PlyCount "55"]
[EventDate "2014.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Hamburg St Pauli"]
[BlackTeam "Hamburg Diogenes"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d6 2. d4 Bg4 3. Nbd2 Nd7 4. e4 e6 5. h3 Bxf3 6. Qxf3 c6 7. Bd3 d5 8. exd5 cxd5 9. 0-0 Qf6 10. Qe3 Bd6 11. Nf3 Ne7 12. c3 0-0 13. g3 e5 14. dxe5 Nxe5 15. Nxe5 Bxe5 16. Bc2 Rfd8 17. h4 Nc6 18. Qd3 Qg6 19. Qe2 Qd6 20. Rd1 Bxg3 21. fxg3 Qxg3+ 22. Qg2 Qxh4 23. Bg5 Qh5 24. Rd3 Re8 25. Rh3 Qe2 26. Bxh7+ Kf8 27. Qxe2 Rxe2 28. Be3 1-0

[Event "Oberliga Nord N 1314"]
[Site "Germany"]
[Date "2014.04.06"]
[Round "9.7"]
[White "Hermann, Matthias"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2234"]
[BlackElo "2111"]
[PlyCount "61"]
[EventDate "2013.10.13"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Hamburg SF"]
[BlackTeam "St Pauli"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d6 2. d4 Nd7 3. e4 c6 4. Bd3 e5 5. c3 Ngf6 6. 0-0 Be7 7. Nbd2 0-0 8. Re1 Re8 9. Nf1 Bf8 10. Ng3 Qc7 11. h3 g6 12. Be3 Bg7 13. Qd2 Nb6 14. Bh6 Qe7 15. Re2 Qf8 16. Bxg7 Qxg7 17. Rf1 h6 18. Nh4 Be6 19. b3 Rad8 20. f4 exd4 21. f5 Bc8 22. fxg6 fxg6 23. cxd4 Nh7 24. e5 Rf8 25. Nxg6 Rxf1+ 26. Kxf1 dxe5 27. dxe5 Nd5 28. Nh5 Rf8+ 29. Kg1 Qc7 30. Nxf8 Nxf8 31. Qxh6 1-0

[Event "Oberliga Nord N 1314"]
[Site "Germany"]
[Date "2014.02.23"]
[Round "7.6"]
[White "Martin Sommerfeldt, Luis"]
[Black "Voelzke, Ferdinand"]
[Result "1-0"]
[ECO "A12"]
[WhiteElo "2111"]
[BlackElo "2181"]
[PlyCount "65"]
[EventDate "2013.10.13"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "St Pauli"]
[BlackTeam "Kiel Turm"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. d4 g6 3. e3 Bg7 4. c4 0-0 5. Nc3 d5 6. Be2 c6 7. b3 Bf5 8. 0-0 Ne4 9. Bb2 Nxc3 10. Bxc3 Nd7 11. cxd5 cxd5 12. Bb4 Nf6 13. Ne5 Ne4 14. f3 Nd6 15. Nd3 a5 16. Ba3 Bc8 17. Qd2 b6 18. Rfc1 Bb7 19. Rc2 Qd7 20. Rac1 Rfc8 21. Ne5 Qe6 22. Rc7 Rxc7 23. Rxc7 Ba6 24. Bxa6 Rxa6 25. Nc6 Bf8 26. Nd8 Qf6 27. Qd3 Ra8 28. Nc6 Qe6 29. Ne5 f6 30. Nd7 Ne8 31. Nxf8 Qf7 32. Rxe7 Qxf8 33. Rxh7 1-0

[Event "Oberliga Nord N 1314"]
[Site "Germany"]
[Date "2014.02.09"]
[Round "6.6"]
[White "Chen, Tsung"]
[Black "Martin Sommerfeldt, Luis"]
[Result "0-1"]
[ECO "C30"]
[WhiteElo "2268"]
[BlackElo "2111"]
[PlyCount "140"]
[EventDate "2013.10.13"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Hamburg Diogenes"]
[BlackTeam "St Pauli"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d6 2. f4 e5 3. d3 Nf6 4. Nf3 Nc6 5. Nc3 Be7 6. Be2 0-0 7. 0-0 Re8 8. Kh1 Bf8 9. fxe5 dxe5 10. Bg5 Be7 11. Qd2 Be6 12. Be3 Ng4 13. Bg1 f6 14. Nd1 Qd7 15. h3 Nh6 16. Be3 Nf7 17. Nh2 Rad8 18. Bg4 Nd6 19. Qf2 b6 20. Nc3 Bf8 21. Nd5 Nb8 22. Bxe6+ Rxe6 23. Ng4 Ne8 24. Qg3 Be7 25. Nh6+ Kf8 26. Nf5 Bd6 27. Rf3 c6 28. Nc3 Qf7 29. Qh4 Kg8 30. Raf1 Bf8 31. g4 h6 32. Qg3 Nd7 33. h4 Nd6 34. Kg2 Kh7 35. Qh3 g6 36. Ng3 Ne8 37. g5 h5 38. Kh1 Bg7 39. Rg1 Qe7 40. Rgf1 fxg5 41. hxg5 Nd6 42. R3f2 Qe8 43. Nce2 Re7 44. Ng1 Nf8 45. Nf3 Kg8 46. Nh4 Rf7 47. Rf3 Rdd7 48. Ne2 Rxf3 49. Rxf3 Rf7 50. Kg2 Rxf3 51. Nxf3 Qe6 52. b3 Qxh3+ 53. Kxh3 Ne6 54. Bd2 Nf7 55. Kh4 Kf8 56. Kg3 Ke7 57. Nh4 Nh8 58. Bc3 Nxg5 59. Kg2 Bf6 60. Kg3 Ngf7 61. Ng1 Nd6 62. Ngf3 Ke6 63. Bd2 Ndf7 64. Be3 g5 65. Nf5 Ng6 66. c3 Nf4 67. d4 Ne2+ 68. Kf2 Nxc3 69. Ng3 h4 70. Nf5 Nxe4+ 0-1

[Event "Oberliga Nord N 1314"]
[Site "Germany"]
[Date "2014.01.19"]
[Round "5.6"]
[White "Cremer, Jochen"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2134"]
[BlackElo "2111"]
[PlyCount "92"]
[EventDate "2013.10.13"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Hamburg Koenigsspringer"]
[BlackTeam "St Pauli"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. Be3 e5 5. Nf3 exd4 6. Qxd4 Be7 7. 0-0-0 0-0 8. e5 dxe5 9. Nxe5 c6 10. Bc4 Qe8 11. Nxd7 Nxd7 12. Rhe1 Bf6 13. Qd6 Qd8 14. Ne4 Be5 15. Qd2 Qh4 16. Bg5 Qg4 17. f3 Qf5 18. Ng3 Bxg3 19. hxg3 Ne5 20. Bb3 h6 21. Bf4 Ng6 22. Bd6 Rd8 23. g4 Qf6 24. Qb4 a5 25. Qd4 Qg5+ 26. Qe3 Qxe3+ 27. Rxe3 a4 28. Bc4 b5 29. Bf1 Be6 30. a3 Rd7 31. Bg3 Rxd1+ 32. Kxd1 Rd8+ 33. Rd3 Rc8 34. Rd2 Ne7 35. Bd6 Nd5 36. Be5 Nf4 37. g3 Nd5 38. Ke1 Nf6 39. Bd3 Nd7 40. Bd6 Nf6 41. Be2 Re8 42. Kf1 Bd5 43. Kf2 Be6 44. Bd3 Rc8 45. Rd1 Nd7 46. Be2 Nb6 1/2-1/2

[Event "Oberliga Nord N 1314"]
[Site "Germany"]
[Date "2014.01.12"]
[Round "8.7"]
[White "Martin Sommerfeldt, Luis"]
[Black "Meier, David Geffrey"]
[Result "1-0"]
[ECO "B27"]
[WhiteElo "2111"]
[BlackElo "2162"]
[PlyCount "137"]
[EventDate "2013.10.13"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "St Pauli"]
[BlackTeam "Hamburger SK III"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 g6 2. e4 Bg7 3. d4 c5 4. c3 d5 5. dxc5 Nf6 6. exd5 Nxd5 7. Bc4 e6 8. Bg5 f6 9. Bxd5 exd5 10. Be3 0-0 11. 0-0 Nc6 12. h3 Be6 13. Na3 Kh8 14. Qd2 Ne5 15. Nd4 Bg8 16. b3 Rc8 17. f4 Nd7 18. b4 a6 19. g4 Re8 20. Nac2 Re4 21. Kg2 b6 22. Nb3 Bf8 23. cxb6 Nxb6 24. Bd4 Nc4 25. Qf2 Qd6 26. Nc5 Ree8 27. Rae1 Bg7 28. a4 Qc6 29. a5 Nd6 30. Rxe8 Rxe8 31. Re1 Ne4 32. Nxe4 dxe4 33. Ne3 Bc4 34. f5 g5 35. Nxc4 Qxc4 36. Qe2 Qc6 37. Qe3 Kg8 38. Rh1 h6 39. h4 Rd8 40. hxg5 fxg5 41. Re1 Bxd4 42. cxd4 Re8 43. Qb3+ Kg7 44. d5 Qd6 45. Qc3+ Kf7 46. Qc6 Qxb4 47. Qg6+ Kf8 48. Qxh6+ Kf7 49. Qg6+ Kf8 50. Qf6+ Kg8 51. Qxg5+ Kf7 52. Qg6+ Kf8 53. Qh6+ Kf7 54. Rc1 Qb2+ 55. Kh3 Qa3+ 56. Kh4 Qe7+ 57. g5 e3 58. Qh7+ Kf8 59. Qxe7+ Rxe7 60. Kg4 e2 61. Re1 Re4+ 62. Kf3 Re5 63. Kf4 Rxd5 64. Rxe2 Rxa5 65. g6 Rb5 66. Kg5 a5 67. Kf6 Rb8 68. g7+ Kg8 69. Kg6 1-0

[Event "Oberliga Nord N 1314"]
[Site "Germany"]
[Date "2013.12.15"]
[Round "4.7"]
[White "Frohberg, Marco"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1/2-1/2"]
[ECO "C30"]
[WhiteElo "2181"]
[BlackElo "2111"]
[PlyCount "32"]
[EventDate "2013.10.13"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Luebeck II"]
[BlackTeam "St Pauli"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nc3 d6 3. f4 exf4 4. Nf3 Be7 5. Bc4 Bh4+ 6. Kf1 Bg4 7. d4 Nc6 8. Bxf4 Qd7 9. h3 Bxf3 10. gxf3 a6 11. Qd2 Bf6 12. Be3 Nge7 13. Nd5 Nxd5 14. Bxd5 Ne7 15. Bb3 Ng6 16. Kf2 0-0-0 1/2-1/2

[Event "Oberliga Nord N 1314"]
[Site "Germany"]
[Date "2013.11.24"]
[Round "3.6"]
[White "Reinecker, Kai"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2235"]
[BlackElo "2111"]
[PlyCount "71"]
[EventDate "2013.10.13"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Preetz"]
[BlackTeam "St Pauli"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 exd4 5. Nxd4 Be7 6. g3 0-0 7. Bg2 Re8 8. 0-0 c6 9. h3 Bf8 10. Re1 a5 11. Bf4 Nbd7 12. Nf3 Nb6 13. Qd3 Be6 14. Rad1 d5 15. exd5 Nfxd5 16. Nxd5 Qxd5 17. Qxd5 Nxd5 18. Be5 f6 19. Bd4 c5 20. Rxe6 Rxe6 21. Ng5 Nc7 22. Nxe6 Nxe6 23. Be3 Rb8 24. Rd7 b5 25. Bd5 Re8 26. Rc7 c4 27. Rc6 Kf7 28. Rb6 c3 29. bxc3 b4 30. c4 a4 31. c5 a3 32. Rxb4 Kg6 33. Rg4+ Kf5 34. Rc4 g5 35. Be4+ Ke5 36. f4+ 1-0

[Event "Oberliga Nord N 1314"]
[Site "Germany"]
[Date "2013.11.10"]
[Round "2.7"]
[White "Pachow, Joerg"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "A54"]
[WhiteElo "2265"]
[BlackElo "2111"]
[PlyCount "143"]
[EventDate "2013.10.13"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Schwerin"]
[BlackTeam "St Pauli"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d6 2. d4 Nf6 3. g3 Nbd7 4. Bg2 c6 5. 0-0 e5 6. c4 Be7 7. Nc3 0-0 8. Qc2 Qc7 9. b3 Re8 10. Bb2 a5 11. Rac1 Bf8 12. Rfd1 exd4 13. Nxd4 Nc5 14. a3 Na6 15. h3 Bd7 16. Rd2 Rad8 17. Rcd1 Bc8 18. Ne4 Be7 19. e3 h6 20. Kh2 Nh7 21. Ne2 Ng5 22. Nf4 Bf8 23. Nh5 Nxe4 24. Bxe4 Qe7 25. Bf3 Qg5 26. Qc3 Nc5 27. h4 Qg6 28. Nf4 Qf5 29. Rxd6 Rxd6 30. Rxd6 f6 31. Rd1 g5 32. g4 Qe5 33. Qc2 Qe7 34. Qg6+ Bg7 35. Nh5 Rf8 36. b4 axb4 37. axb4 Na4 38. Be4 Rf7 39. Ba1 Bxg4 40. Qh7+ Kf8 41. Nxg7 Rxg7 42. Qh8+ Kf7 43. Rd8 Bd7 44. Bxf6 Kxf6 45. Rg8 Qe5+ 46. Kg1 Kf7 47. h5 Qa1+ 48. Kh2 Qe5+ 49. Kg1 Qa1+ 50. Kg2 Qe5 51. Bg6+ Rxg6 52. hxg6+ Ke6 53. Re8+ Bxe8 54. Qxe8+ Kd6 55. Qf8+ Kc7 56. Qf7+ Kb6 57. c5+ Ka7 58. g7 Qe4+ 59. f3 Qxe3 60. g8Q Qe2+ 61. Kg3 Qe5+ 62. Kg4 Qd4+ 63. Kh5 Qh4+ 64. Kg6 Qxb4 65. Qc4 Qb1+ 66. Kxh6 Qh1+ 67. Kg7 Qa1+ 68. Kg6 Qb1+ 69. Qe4 Qa1 70. Qgc4 Nc3 71. Qed4 Qb1+ 72. Qdd3 1-0

[Event "Oberliga Nord N 1314"]
[Site "Germany"]
[Date "2013.10.13"]
[Round "1.7"]
[White "Martin Sommerfeldt, Luis"]
[Black "Rubach, Ingo"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2111"]
[BlackElo "2096"]
[PlyCount "55"]
[EventDate "2013.10.13"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "St Pauli"]
[BlackTeam "Pinneberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d5 2. b3 Nf6 3. Bb2 e6 4. e3 Be7 5. Be2 0-0 6. 0-0 c5 7. c4 Nc6 8. d4 cxd4 9. Nxd4 Nxd4 10. Qxd4 dxc4 11. Bxc4 Qa5 12. a3 b6 13. b4 Qg5 14. f3 Rd8 15. Qe5 Qh6 16. Qc3 Bb7 17. Qe1 Rac8 18. Ba2 Rc2 19. Be5 Ng4 20. Bf4 Qf6 21. Bb3 Rb2 22. Ra2 Rxa2 23. Bxa2 Qb2 24. Bc4 Qc2 25. Qe2 Qxe2 26. Bxe2 Nf6 27. e4 a5 28. Bc7 1/2-1/2

[Event "Hamburg St Pauli op-A"]
[Site "Hamburg"]
[Date "2013.07.14"]
[Round "9"]
[White "Martin Sommerfeldt, Luis"]
[Black "Hess, Christian"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "2109"]
[BlackElo "2289"]
[PlyCount "102"]
[EventDate "2013.07.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 155 Extra"]
[Source "ChessBase"]
[SourceDate "2013.08.26"]
[SourceVersion "1"]
[SourceVersionDate "2013.08.26"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. e3 c5 5. Be2 0-0 6. 0-0 Nc6 7. d4 d5 8. Nbd2 cxd4 9. exd4 Bf5 10. a3 Rc8 11. c4 dxc4 12. bxc4 Qb6 13. Ra2 Ne4 14. Nxe4 Bxe4 15. Ng5 Bf5 16. g4 Bd7 17. c5 Qc7 18. d5 Ne5 19. Bd4 f6 20. Ne4 Bxg4 21. Bxg4 Nxg4 22. Qxg4 f5 23. Qh4 fxe4 24. Bxg7 Kxg7 25. Qxe4 Rf4 26. Qe3 Rg4+ 27. Kh1 Qxc5 28. Qe5+ Kh6 29. Re2 Qxa3 30. Re3 Rc1 31. Rxc1 Qxc1+ 32. Re1 Qc5 33. Re3 Qc1+ 34. Re1 Qg5 35. Qe3 Qxe3 36. fxe3 Kg5 37. h3 Rg3 38. Kh2 Kh4 39. e4 Rxh3+ 40. Kg2 Rd3 41. Kf2 Kg5 42. Ke2 Rc3 43. Rf1 Rc7 44. Rf7 Rd7 45. Ke3 h5 46. Kd4 e5+ 47. Kxe5 Rxf7 48. Ke6 Rf1 49. e5 h4 50. d6 h3 51. d7 Rd1 0-1

[Event "Hamburg St Pauli op-A"]
[Site "Hamburg"]
[Date "2013.07.06"]
[Round "1"]
[White "Wolke, Reimund"]
[Black "Martin Sommerfeldt, Luis"]
[Result "0-1"]
[ECO "B09"]
[WhiteElo "1897"]
[BlackElo "2109"]
[PlyCount "42"]
[EventDate "2013.07.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 155 Extra"]
[Source "ChessBase"]
[SourceDate "2013.08.26"]
[SourceVersion "1"]
[SourceVersionDate "2013.08.26"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 0-0 6. Bd3 b6 7. e5 Ne8 8. 0-0 a6 9. Ne4 c5 10. c3 cxd4 11. cxd4 Ra7 12. Ng3 dxe5 13. fxe5 Bg4 14. Be4 Rd7 15. Be3 Bxe5 16. Qb3 Bc7 17. Ne5 Be6 18. Qc2 Rxd4 19. Nxg6 hxg6 20. Qf2 Bxg3 21. hxg3 Rxe4 0-1

[Event "Hamburg-chT Landesliga 1213"]
[Site "Hamburg"]
[Date "2013.04.14"]
[Round "9.2"]
[White "Martin Sommerfeldt, Luis"]
[Black "Grote, Dirk"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "2086"]
[BlackElo "2157"]
[PlyCount "83"]
[EventDate "2012.10.14"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "St Pauli"]
[BlackTeam "Grosshansdorf"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. e3 0-0 5. d4 c5 6. Be2 d6 7. 0-0 cxd4 8. exd4 b6 9. c4 Bb7 10. Nbd2 Nbd7 11. Rb1 a6 12. Re1 Re8 13. d5 b5 14. Nf1 bxc4 15. bxc4 Nc5 16. Ne3 Rb8 17. Nd4 Qa5 18. Nb3 Qxa2 19. Nxc5 dxc5 20. Be5 Nxd5 21. Ra1 Nxe3 22. fxe3 Rbd8 23. Bd4 Bxd4 24. exd4 Qb2 25. Rb1 Qc3 26. Rb3 Qa5 27. Rxb7 cxd4 28. Bf3 d3 29. Bd5 e6 30. Bf3 Qc5+ 31. Kh1 Qxc4 32. Rf1 Rf8 33. Qd2 Rc8 34. Rb4 Qc3 35. Qxc3 Rxc3 36. Rd4 e5 37. Rd5 Rfc8 38. Rxe5 Rc1 39. Kg1 Rxf1+ 40. Kxf1 Rc1+ 41. Kf2 Rc2+ 42. Ke3 1-0

[Event "Hamburg-chT Landesliga 1213"]
[Site "Hamburg"]
[Date "2013.04.13"]
[Round "8.3"]
[White "Martin Sommerfeldt, Luis"]
[Black "Hohlfeld, Wolfgang"]
[Result "1-0"]
[ECO "D04"]
[WhiteElo "2086"]
[BlackElo "2119"]
[PlyCount "81"]
[EventDate "2012.10.14"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "St Pauli"]
[BlackTeam "Hamburg Diogenes II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. d4 d5 3. e3 Bf5 4. Be2 e6 5. 0-0 Be7 6. b3 0-0 7. Bb2 c5 8. Nbd2 Ne4 9. c4 Nc6 10. cxd5 Qxd5 11. Bc4 Qd8 12. Nxe4 Bxe4 13. Nd2 Bg6 14. dxc5 Bxc5 15. Qc1 Be7 16. Nf3 Bf6 17. Rd1 Qxd1+ 18. Qxd1 Bxb2 19. Rb1 Bxb1 20. Qxb1 Bf6 21. g4 g6 22. Qe4 Rad8 23. h4 Rd1+ 24. Kg2 Rfd8 25. h5 Ra1 26. hxg6 hxg6 27. Qf4 Bg7 28. Qc7 Rxa2 29. Qxb7 Rd6 30. Ng5 Nd8 31. Qe7 Bf8 32. Qe8 Rdd2 33. Ne4 Rd1 34. Nf6+ Kg7 35. Nd7 Bd6 36. Qxd8 Rdd2 37. Qf6+ Kg8 38. g5 Be7 39. Qxe7 Rxf2+ 40. Kg3 Rg2+ 41. Kf3 1-0

[Event "Hamburg St Pauli op-A"]
[Site "Hamburg"]
[Date "2011.07.17"]
[Round "9"]
[White "Hebbinghaus, Holger"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "2189"]
[BlackElo "2077"]
[PlyCount "18"]
[EventDate "2011.07.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 d6 2. e4 e5 3. Nf3 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. g3 0-0 7. Bg2 Re8 8. 0-0 c6 9. h3 h6 1/2-1/2

[Event "Hamburg St Pauli op-A"]
[Site "Hamburg"]
[Date "2011.07.15"]
[Round "8"]
[White "Martin Sommerfeldt, Luis"]
[Black "Hein, Ralf"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2077"]
[BlackElo "2144"]
[PlyCount "70"]
[EventDate "2011.07.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. Nf3 c5 2. b3 d5 3. e3 Nc6 4. d4 Nf6 5. Bb2 Bg4 6. Be2 e6 7. 0-0 Rc8 8. Nbd2 Bd6 9. h3 Bh5 10. c4 0-0 11. cxd5 Nxd5 12. Ne4 cxd4 13. Nxd6 Qxd6 14. Nxd4 Bxe2 15. Nxe2 Rfd8 16. a3 e5 17. Qb1 Qe6 18. b4 Nb6 19. Rd1 Qb3 20. Bc3 Qc4 21. Rxd8+ Rxd8 22. Ra2 Na4 23. Be1 Rd3 24. Qc2 Qxc2 25. Rxc2 Rxa3 26. b5 Ne7 27. Bb4 Ra1+ 28. Kh2 Nc6 29. bxc6 bxc6 30. Rxc6 f6 31. Rc8+ Kf7 32. Rc7+ Kg8 33. Rxa7 Ra2 34. Ng3 h6 35. Nh5 Kh8 1-0

[Event "Hamburg St Pauli op-A"]
[Site "Hamburg"]
[Date "2011.07.14"]
[Round "7"]
[White "Martin Sommerfeldt, Luis"]
[Black "Raider, Eugen"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2077"]
[BlackElo "1899"]
[PlyCount "73"]
[EventDate "2011.07.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. Nf3 c5 2. b3 e6 3. Bb2 Qc7 4. e3 b6 5. d4 Bb7 6. Bd3 a6 7. c4 Nf6 8. Nbd2 d6 9. 0-0 Nbd7 10. Qe2 Rg8 11. e4 cxd4 12. Nxd4 e5 13. Nf5 g6 14. Ne3 Nc5 15. f3 h5 16. Bc2 Bh6 17. Rfc1 Ne6 18. b4 Nf4 19. Qe1 h4 20. Kh1 N6h5 21. Ng4 Bg5 22. c5 bxc5 23. bxc5 Rh8 24. Nf1 f6 25. cxd6 Qd7 26. Qd1 Bc6 27. Bb3 Ng3+ 28. Nxg3 hxg3 29. Rxc6 Rxh2+ 30. Kg1 Qh7 31. d7+ Kd8 32. Rc8+ Rxc8 33. dxc8Q+ Kxc8 34. Rc1+ Kb7 35. Bd5+ Kb8 36. Qb3+ Ka7 37. Qe3+ 1-0

[Event "Hamburg St Pauli op-A"]
[Site "Hamburg"]
[Date "2011.07.13"]
[Round "6"]
[White "Meertens, Martin"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2158"]
[BlackElo "2077"]
[PlyCount "95"]
[EventDate "2011.07.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 d6 2. d4 e5 3. Nf3 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. Bd3 0-0 7. 0-0 Re8 8. Nd5 Nxd5 9. exd5 Bf6 10. c3 c6 11. Qf3 cxd5 12. Qxd5 Re5 13. Qf3 d5 14. Bf4 Re7 15. Rae1 Nc6 16. Rxe7 Nxe7 17. Re1 a6 18. Be5 Bg5 19. h4 Bxh4 20. Bxh7+ Kxh7 21. Qxf7 Qh8 22. Nf3 Nf5 23. Nxh4 Nxh4 24. Bg3 Bg4 25. Bxh4 Qg8 26. Qf4 Be6 27. Re5 Qf7 28. Qxf7 Bxf7 29. Re7 Kg6 30. Rxb7 d4 31. cxd4 Bxa2 32. Bg3 Bc4 33. Be5 Rg8 34. Kh2 Kh6 35. f4 Kg6 36. g4 Rh8+ 37. Kg3 Rh1 38. f5+ Kh6 39. Rxg7 Rg1+ 40. Kf4 Rf1+ 41. Ke3 Re1+ 42. Kd2 Re2+ 43. Kc3 Bb5 44. Rg6+ Kh7 45. g5 Re3+ 46. Kb4 a5+ 47. Kxb5 Rb3+ 48. Ka6 1-0

[Event "Hamburg St Pauli op-A"]
[Site "Hamburg"]
[Date "2011.07.12"]
[Round "5"]
[White "Martin Sommerfeldt, Luis"]
[Black "Manthey, Juergen"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "2077"]
[BlackElo "1830"]
[PlyCount "141"]
[EventDate "2011.07.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. Nf3 c5 2. b3 Nf6 3. Bb2 e6 4. e3 d5 5. d4 Nc6 6. Nbd2 Bd6 7. Bd3 0-0 8. a3 b6 9. 0-0 Bb7 10. c4 Re8 11. Ne5 Bxe5 12. dxe5 Nd7 13. f4 Ne7 14. Qe2 Ba6 15. Rad1 Qc7 16. Nf3 Nf8 17. g4 g6 18. h4 Rad8 19. Qh2 dxc4 20. Bxc4 Bxc4 21. bxc4 Rxd1 22. Rxd1 Rd8 23. Rxd8 Qxd8 24. Qc2 Qd7 25. Ng5 Qc6 26. Ne4 a6 27. Nf6+ Kg7 28. e4 b5 29. Qd3 bxc4 30. Qxc4 Qb6 31. Qc3 Qb5 32. Kf2 Nc6 33. Ne8+ Kg8 34. Nd6 Qb6 35. Nc4 Qb5 36. f5 Nd4 37. f6 Nd7 38. Qc1 Nxe5 39. Nxe5 Qe2+ 40. Kg3 Qxe4 41. Bxd4 Qxd4 42. Qe1 c4 43. g5 h5 44. Nf3 Qd8 45. Qe5 Qc8 46. Qc3 a5 47. Ne5 Qc5 48. Kf3 a4 49. Ke2 Qd5 50. Nf3 Qe4+ 51. Kd2 Qf4+ 52. Qe3 c3+ 53. Kd3 Qd6+ 54. Kc2 Qxa3 55. Qxc3 Qa2+ 56. Kc1 Qd5 57. Qc8+ Kh7 58. Nd2 a3 59. Qf8 Qc6+ 60. Kb1 Qb5+ 61. Kc2 Qb2+ 62. Kd3 Qb5+ 63. Nc4 Qb1+ 64. Kc3 Qa1+ 65. Kb3 Qb1+ 66. Kxa3 Qc1+ 67. Kb4 Qe1+ 68. Kc5 Qf2+ 69. Kc6 Qf3+ 70. Kd7 Qb7+ 71. Ke8 1-0

[Event "Hamburg St Pauli op-A"]
[Site "Hamburg"]
[Date "2011.07.11"]
[Round "3"]
[White "Martin Sommerfeldt, Luis"]
[Black "Hochgraefe, Markus"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "2077"]
[BlackElo "2356"]
[PlyCount "96"]
[EventDate "2011.07.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Bg4 3. Bb2 Nd7 4. d4 e6 5. e3 Bd6 6. Be2 f5 7. Nbd2 Qf6 8. c4 c6 9. h3 Bh5 10. Ne5 Bxe2 11. Nxd7 Bxd1 12. Nxf6+ Nxf6 13. Rxd1 g5 14. Ke2 h5 15. f3 Bb4 16. Nf1 Kd7 17. a3 Bd6 18. Nd2 Rag8 19. c5 Bc7 20. Rdf1 g4 21. f4 gxh3 22. gxh3 Rg2+ 23. Rf2 Rhg8 24. Kf1 R2g3 25. Ke2 Bd8 26. Rf3 R3g7 27. Kf1 Ne4 28. Nxe4 fxe4 29. Rf2 Bh4 30. Rfh2 Rg3 31. Bc1 b6 32. b4 bxc5 33. bxc5 Rb8 34. Ke2 Rb3 35. Rf1 a5 36. Rfh1 a4 37. Rf1 Rc3 38. Rfh1 Kc8 39. Kd1 Rb3 40. Ke2 Kb7 41. Rf1 Rc3 42. Kd1 Ka6 43. f5 exf5 44. Bd2 Rxa3 45. Rxf5 Rg1+ 46. Kc2 Ra2+ 47. Kc3 Bd8 48. Kb4 Ba5# 0-1

[Event "Hamburg St Pauli op-A"]
[Site "Hamburg"]
[Date "2011.07.11"]
[Round "4"]
[White "Sturm, Timo"]
[Black "Martin Sommerfeldt, Luis"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "1942"]
[BlackElo "2077"]
[PlyCount "54"]
[EventDate "2011.07.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 d6 2. Nf3 g6 3. c4 Bg7 4. g3 b6 5. Bg2 Bb7 6. 0-0 e6 7. Nc3 Ne7 8. e4 0-0 9. Re1 Nd7 10. Bf4 h6 11. d5 e5 12. Be3 f5 13. Qd2 Kh7 14. Nh4 f4 15. gxf4 exf4 16. Bxf4 g5 17. Bxg5 hxg5 18. Qxg5 Bh6 19. Qg3 Ne5 20. Kh1 Bc8 21. Nf3 Rg8 22. Qh4 Nxf3 23. Bxf3 Qf8 24. Bh5 Ng6 25. Qg3 Nf4 26. Qf3 Nxh5 27. Qxh5 Bg4 0-1

[Event "Hamburg St Pauli op-A"]
[Site "Hamburg"]
[Date "2011.07.10"]
[Round "2"]
[White "Korba, Roman"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "A41"]
[WhiteElo "2213"]
[BlackElo "2077"]
[PlyCount "137"]
[EventDate "2011.07.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 d6 2. g3 e5 3. dxe5 dxe5 4. Qxd8+ Kxd8 5. Nc3 c6 6. f4 Bd6 7. Ne4 Bc7 8. fxe5 Bxe5 9. Nf3 Bc7 10. Bf4 Bxf4 11. gxf4 Ke7 12. 0-0-0 Nf6 13. Nxf6 Kxf6 14. Rg1 g6 15. Ne5 Be6 16. e4 Ke7 17. Bc4 f6 18. Bxe6 Kxe6 19. Nc4 b5 20. Na5 a6 21. Rg3 Rc8 22. Rgd3 Ra7 23. Rd6+ Ke7 24. f5 gxf5 25. exf5 Kf7 26. Rd8 Rac7 27. b4 Ke7 28. Rxc8 Rxc8 29. Re1+ Kd7 30. Nb7 Re8 31. Nc5+ Kd8 32. Ne6+ Kd7 33. Rg1 Kd6 34. Nc5 Re7 35. h4 h5 36. Rd1+ Kc7 37. Ne6+ Kb6 38. Rd8 Nd7 39. Rh8 a5 40. bxa5+ Kxa5 41. Rxh5 Kb4 42. Rh6 Kc4 43. h5 Kd5 44. Rg6 Ke5 45. Ng7 Nf8 46. h6 Nh7 47. Rg1 Ra7 48. Kb2 b4 49. Ne6 Kxf5 50. Nd4+ Ke4 51. Rg7 Ra8 52. Nxc6 Ng5 53. Nxb4 Rh8 54. a4 Rxh6 55. a5 Nf3 56. a6 Nd4 57. Rg4+ Ke5 58. Rxd4 Kxd4 59. a7 Rh8 60. Nc6+ Ke3 61. Nb8 f5 62. a8Q f4 63. Qa7+ Ke2 64. Nc6 Rh3 65. Nd4+ Ke1 66. Qe7+ Re3 67. Qh4+ Kd2 68. Qxf4 Kd1 69. Qf1+ 1-0

[Event "Hamburg St Pauli op-A"]
[Site "Hamburg"]
[Date "2011.07.09"]
[Round "1"]
[White "Martin Sommerfeldt, Luis"]
[Black "Onken, Alexej"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2077"]
[BlackElo "1764"]
[PlyCount "57"]
[EventDate "2011.07.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. Nf3 e6 2. b3 d5 3. Bb2 f5 4. e3 Nf6 5. d4 c6 6. Bd3 Be7 7. Nbd2 0-0 8. Qe2 Bd7 9. Ne5 Be8 10. 0-0 Bh5 11. f3 Nbd7 12. Nxd7 Qxd7 13. h3 Bd6 14. g4 Bg6 15. Qe1 Rae8 16. g5 Nh5 17. f4 h6 18. h4 hxg5 19. hxg5 Kf7 20. Be2 Rh8 21. Kg2 Rh7 22. Rh1 Reh8 23. Qf2 Qc7 24. Bxh5 Bxh5 25. c4 Bb4 26. Nf3 Be7 27. g6+ Bxg6 28. Ne5+ Kf6 29. Qg3 1-0

[Event "Hamburg-chT Landesliga 1011"]
[Site "Hamburg"]
[Date "2011.04.17"]
[Round "9.3"]
[White "Martin Sommerfeldt, Luis"]
[Black "Dumjahn, Carsten"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2039"]
[BlackElo "2119"]
[PlyCount "120"]
[EventDate "2010.10.10"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "St Pauli II"]
[BlackTeam "Eidelstedt"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. b3 d6 3. d4 c5 4. e3 g6 5. Bb2 Bg7 6. Be2 0-0 7. 0-0 Bf5 8. Nbd2 Nc6 9. a3 cxd4 10. exd4 Nd5 11. Re1 Qa5 12. Nc4 Qc7 13. h3 b5 14. Ncd2 b4 15. g4 Bd7 16. axb4 Ncxb4 17. Nc4 Nf4 18. Bf1 Bc6 19. Nh2 Rab8 20. c3 Nbd5 21. Nd2 Ba8 22. c4 Nb4 23. Re3 Ne6 24. Ndf3 Qb7 25. Rb1 Bh6 26. d5 Bxe3 27. fxe3 Nxd5 28. cxd5 Qxd5 29. Qxd5 Bxd5 30. Nd2 Nc5 31. Bd4 Nxb3 32. Nxb3 Rxb3 33. Rxb3 Bxb3 34. Bxa7 Ra8 35. Bd4 Rc8 36. g5 Rc1 37. Kf2 Rc2+ 38. Kg3 Bc4 39. Bg2 e5 40. Bb6 h5 41. h4 f5 42. gxf6 Kf7 43. Bd8 Rc3 44. Kf2 Rc2+ 45. Kg3 Rc3 46. Nf3 Rxe3 47. Kf2 Re2+ 48. Kg1 Ke8 49. Be7 e4 50. Ng5 d5 51. Bc5 d4 52. Bxd4 e3 53. Bc5 Re1+ 54. Kh2 e2 55. Bc6+ Kd8 56. Bb6+ Kc8 57. Bf2 Rf1 58. Kg2 e1Q 59. Bxe1 Rxe1 60. f7 Bxf7 1/2-1/2

[Event "Hamburg-chT Landesliga 1011"]
[Site "Hamburg"]
[Date "2011.04.16"]
[Round "8.2"]
[White "Martin Sommerfeldt, Luis"]
[Black "Gara, Anita"]
[Result "1-0"]
[ECO "D04"]
[WhiteElo "2039"]
[BlackElo "2382"]
[PlyCount "63"]
[EventDate "2010.10.10"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "St Pauli II"]
[BlackTeam "Grosshansdorf"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 g6 2. d4 Bg7 3. b3 d5 4. Bb2 Nf6 5. e3 c6 6. Be2 a5 7. c4 Ne4 8. Nc3 Bf5 9. Nh4 Nxc3 10. Bxc3 Be6 11. c5 Nd7 12. Rc1 b6 13. cxb6 Qxb6 14. 0-0 0-0 15. Nf3 h6 16. Kh1 Rfc8 17. a3 Qa7 18. b4 a4 19. Ne1 h5 20. h3 Bf5 21. g4 hxg4 22. hxg4 Be6 23. Nd3 Nf6 24. f3 Bh6 25. Bd2 Qb8 26. Kg2 Kg7 27. Rh1 Nd7 28. e4 Bxd2 29. Qxd2 Rh8 30. Rxh8 Kxh8 31. Qh6+ Kg8 32. Rh1 1-0

[Event "Harburg-chB 8th"]
[Site "Hamburg"]
[Date "2010.08.22"]
[Round "4"]
[White "Martin Sommerfeldt, Luis"]
[Black "Juergens, Bernhard"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "2028"]
[BlackElo "2119"]
[PlyCount "133"]
[EventDate "2010.08.20"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. Nf3 f5 2. b3 d6 3. d4 Nf6 4. Bb2 g6 5. e3 Bg7 6. Nbd2 Nc6 7. Bc4 e6 8. a3 Qe7 9. Qe2 Bd7 10. b4 a6 11. Bb3 e5 12. dxe5 dxe5 13. e4 fxe4 14. Nxe4 Nxe4 15. Qxe4 Bf5 16. Qe3 0-0-0 17. 0-0 e4 18. Bxg7 Qxg7 19. Nd2 Rd4 20. Rfe1 Rhd8 21. Nf1 Ne5 22. h3 h5 23. Ng3 h4 24. Ne2 Rd2 25. Nc3 R2d4 26. Rad1 g5 27. Rxd4 Rxd4 28. f3 Nc4 29. Bxc4 Rxc4 30. Nxe4 Bxe4 31. fxe4 Qd4 32. Qxd4 Rxd4 33. Kf2 Rc4 34. Re2 Rc3 35. Rd2 c5 36. e5 cxb4 37. e6 Rc7 38. axb4 Re7 39. Re2 Kc7 40. Re5 g4 41. hxg4 Kd6 42. Re4 Rxe6 43. Rxe6+ Kxe6 44. Ke3 Kf6 45. Kf4 b6 46. c4 a5 47. bxa5 bxa5 48. c5 a4 49. c6 Ke7 50. g5 a3 51. c7 Kd7 52. c8Q+ Kxc8 53. g6 a2 54. g7 a1Q 55. g8Q+ Kd7 56. Qd5+ Kc8 57. Qg8+ Kd7 58. Qh7+ Ke6 59. Qh6+ Kf7 60. Qxh4 Qd4+ 61. Kg3 Qe3+ 62. Kg4 Qe6+ 63. Kg3 Qe1+ 64. Kg4 Qd1+ 65. Kf4 Qf1+ 66. Kg3 Qe1+ 67. Kg4 1/2-1/2

[Event "Harburg-chB 8th"]
[Site "Hamburg"]
[Date "2010.08.22"]
[Round "5"]
[White "Schiele, Lars"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2043"]
[BlackElo "2028"]
[PlyCount "37"]
[EventDate "2010.08.20"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. f4 Qa5 5. Bd2 e5 6. dxe5 dxe5 7. f5 Qc7 8. Bd3 b5 9. Qe2 Bb7 10. Nf3 Nbd7 11. 0-0 Bc5+ 12. Kh1 0-0-0 13. b4 Be7 14. a4 a6 15. axb5 axb5 16. Bxb5 Bxb4 17. Ba6 Nc5 18. Bxb7+ Qxb7 19. Rfb1 1-0

[Event "Harburg-chB 8th"]
[Site "Hamburg"]
[Date "2010.08.21"]
[Round "2"]
[White "Martin Sommerfeldt, Luis"]
[Black "Kemeny, Matthias"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "2028"]
[BlackElo "2044"]
[PlyCount "115"]
[EventDate "2010.08.20"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 d5 3. Bb2 c5 4. e3 e6 5. d4 Nc6 6. Nbd2 Be7 7. c4 0-0 8. Bd3 Bd7 9. 0-0 a5 10. a3 a4 11. cxd5 Nxd5 12. dxc5 axb3 13. Nxb3 Na5 14. Nbd4 h6 15. Ne5 Bxc5 16. Nxd7 Qxd7 17. Bb5 Qe7 18. a4 Rfd8 19. Qg4 Nf6 20. Qf3 Rd5 21. Rab1 Nd7 22. Bc3 Ne5 23. Qe2 Nac6 24. Nc2 Rad8 25. f4 Ng6 26. Bc4 R5d7 27. Kh1 Nh4 28. g4 Kh7 29. Bb5 Qd6 30. Be1 Ng6 31. h4 f5 32. gxf5 exf5 33. h5 Nge7 34. Bc4 Qf6 35. Qf3 Nc8 36. Qh3 Qe7 37. Qxf5+ Kh8 38. Qh3 Nd6 39. Be6 Ne4 40. Bxd7 Rxd7 41. Rg1 Nd2 42. Rd1 Qe4+ 43. Rg2 Rd8 44. Rdxd2 Rxd2 45. Bxd2 Qxc2 46. Qc8+ Kh7 47. Qg4 Bf8 48. Qg6+ Qxg6 49. Rxg6 Kg8 50. Bc3 Kf7 51. Kg1 Nd8 52. f5 Nc6 53. e4 Ne7 54. Rb6 Nxf5 55. Rxb7+ Ne7 56. a5 Ke8 57. Bb4 Nc6 58. Bxf8 1-0

[Event "Harburg-chB 8th"]
[Site "Hamburg"]
[Date "2010.08.21"]
[Round "3"]
[White "Ramme, Christoph"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1/2-1/2"]
[ECO "A42"]
[WhiteElo "2062"]
[BlackElo "2028"]
[PlyCount "95"]
[EventDate "2010.08.20"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 Nd7 5. Be2 b6 6. f4 Bb7 7. Nf3 e6 8. 0-0 Ne7 9. Bd3 0-0 10. Bc2 a6 11. f5 e5 12. Bg5 f6 13. Be3 c6 14. Qd2 Qc7 15. Rad1 Rad8 16. Qf2 c5 17. d5 b5 18. g4 b4 19. Ne2 Nb6 20. b3 Bc8 21. Qh4 Rf7 22. Ng3 Bh8 23. Kh1 Rdf8 24. Rg1 g5 25. Qh3 h6 26. Qf1 Bd7 27. Nh5 Nec8 28. Rd2 Be8 29. h4 Rh7 30. Rh2 Qe7 31. Rg3 a5 32. hxg5 hxg5 33. Rgh3 Bxh5 34. Rxh5 Rxh5 35. Rxh5 Rf7 36. Qh3 Rh7 37. Bd1 Rxh5 38. Qxh5 Qh7 39. Qxh7+ Kxh7 40. Nxg5+ fxg5 41. Bxg5 a4 42. Bc1 Bf6 43. g5 Bd8 44. Kg2 Kg7 45. Kg3 a3 46. Kg4 Nd7 47. Kh5 Ncb6 48. Kg4 1/2-1/2

[Event "Harburg-chB 8th"]
[Site "Hamburg"]
[Date "2010.08.20"]
[Round "1"]
[White "Martin Sommerfeldt, Luis"]
[Black "Schmidt, Jade"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "2028"]
[BlackElo "2028"]
[PlyCount "88"]
[EventDate "2010.08.20"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 c5 3. e3 Nc6 4. Bb2 Nf6 5. Be2 e6 6. 0-0 Be7 7. d4 0-0 8. c4 cxd4 9. exd4 b6 10. Nbd2 Bb7 11. Bd3 Nb4 12. Bb1 Rc8 13. a3 Nc6 14. Qe2 Na5 15. Ne5 Nxb3 16. Nxb3 dxc4 17. Nxc4 Qd5 18. Ne3 Qxb3 19. Bc2 Ba6 20. Qd2 Rxc2 21. Qxc2 Qxc2 22. Nxc2 Bxf1 23. Kxf1 Rc8 24. Ne1 Nd5 25. g3 Kf8 26. h4 Ke8 27. Rd1 Kd7 28. Rd3 Rc4 29. Ke2 b5 30. Kd1 a5 31. Nf3 f6 32. Nd2 Rc7 33. Nb1 b4 34. axb4 axb4 35. Bc1 Kc6 36. Bb2 Kb5 37. Nd2 Nc3+ 38. Ke1 Na4 39. Rb3 Rc2 40. Ba3 Ka5 41. Bb2 Nxb2 42. Rxb2 Rxb2 43. Nc4+ Ka4 44. Nxb2+ Ka3 0-1

[Event "Hamburg St Pauli op-A"]
[Site "Hamburg"]
[Date "2010.07.17"]
[Round "8"]
[White "Bildat, Juergen"]
[Black "Martin Sommerfeldt, Luis"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2169"]
[BlackElo "2028"]
[PlyCount "184"]
[EventDate "2010.07.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. f4 b6 5. Nf3 e6 6. Be3 Bb7 7. Bd3 Ne7 8. Qd2 Nd7 9. 0-0-0 h6 10. f5 exf5 11. exf5 g5 12. Rde1 Nf6 13. Kb1 Qd7 14. Ne5 dxe5 15. dxe5 0-0-0 16. exf6 Bxf6 17. Ref1 Kb8 18. g4 Nc6 19. Ne4 Be5 20. Rd1 Qe7 21. f6 Qe6 22. h3 a5 23. a3 Rd7 24. Qf2 Rhd8 25. Ng3 Bxg3 26. Qxg3 Ne5 27. Be2 Rxd1+ 28. Rxd1 Rxd1+ 29. Bxd1 Nf3 30. Qf2 Qxf6 31. Kc1 Be4 32. Be2 Qc6 33. Bxf3 Bxf3 34. Bd4 Qd5 35. Qe3 f5 36. gxf5 Qxf5 37. Be5 Kb7 38. Bg7 h5 39. Bh6 g4 40. hxg4 hxg4 41. Bf4 Be4 42. c3 Bb1 43. Kd1 Ba2 44. Ke1 Qb1+ 45. Qc1 Qe4+ 46. Qe3 Qh1+ 47. Kf2 Bc4 48. Qe5 Qf1+ 49. Kg3 Qh3+ 50. Kf2 Qf3+ 51. Ke1 Ka6 52. Bg3 Qf1+ 53. Kd2 Qd3+ 54. Ke1 Qb1+ 55. Kf2 Qxb2+ 56. Ke3 Qe2+ 57. Kf4 Qxe5+ 58. Kxe5 c6 59. Kd4 Be2 60. c4 a4 61. Kc3 Kb7 62. Kb4 Bd1 63. Bf2 Kc7 64. Bg3+ Kd7 65. Bf2 Kc7 66. Bg3+ Kb7 67. Bf2 Ka6 68. Bg3 c5+ 69. Kc3 b5 70. Bf2 Kb6 71. cxb5 Kxb5 72. Kd3 Bf3 73. Bg3 Kc6 74. Bf2 Kd5 75. Kc3 Be2 76. Kd2 Bf1 77. Ke3 c4 78. Be1 Bd3 79. Bc3 Be4 80. Kf4 Bf3 81. Bg7 Bd1 82. Bf6 g3 83. Kxg3 Ke4 84. Kf2 Kd3 85. Ke1 Bg4 86. Be5 c3 87. Bf6 Kc4 88. Be5 Kb3 89. Bf6 Bf5 90. Be7 c2 91. Kd2 Kb2 92. Bf6+ Kb1 0-1

[Event "Hamburg St Pauli op-A"]
[Site "Hamburg"]
[Date "2010.07.16"]
[Round "7"]
[White "Martin Sommerfeldt, Luis"]
[Black "Engelbert, Christoph"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "2028"]
[BlackElo "2190"]
[PlyCount "102"]
[EventDate "2010.07.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. Nf3 g6 2. d4 Bg7 3. b3 d6 4. Bb2 Nc6 5. e3 e5 6. dxe5 Nge7 7. Na3 Bg4 8. Be2 Bxf3 9. gxf3 Nxe5 10. Nc4 0-0 11. Rb1 Nxc4 12. Bxc4 Bxb2 13. Rxb2 Qd7 14. h4 h5 15. c3 Qf5 16. Ke2 Rad8 17. Rb1 d5 18. Bd3 Qf6 19. Rc1 Rfe8 20. Qg1 Kg7 21. Qg3 Rd6 22. Kd2 c5 23. Rhg1 c4 24. Bb1 cxb3 25. axb3 Rb6 26. b4 a5 27. bxa5 Rb2+ 28. Ke1 Nf5 29. Bxf5 Qxf5 30. Kf1 Rxe3 31. Kg2 Ree2 32. Rgf1 Qf6 33. Rcd1 Rb5 34. Rd4 Rxa5 35. Qc7 Rb5 36. Qd7 Qc6 37. Qd8 Qxc3 38. Rxd5 Rb3 39. Rg5 Qxf3+ 40. Kg1 Qf4 41. Rg2 Rb4 42. Qd3 Re6 43. Qc3+ Rf6 44. Rg3 Qxh4 45. Kg2 Qd4 46. Qxd4 Rxd4 47. Rb3 b6 48. Rb2 Rg4+ 49. Kh2 Rg5 50. f4 Rg4 51. Rb4 Rd6 0-1

[Event "Hamburg St Pauli op-A"]
[Site "Hamburg"]
[Date "2010.07.14"]
[Round "6"]
[White "Welz, Peter"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2151"]
[BlackElo "2028"]
[PlyCount "117"]
[EventDate "2010.07.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. f4 Bg7 4. Nf3 b6 5. Bd3 Bb7 6. 0-0 e6 7. c4 Nd7 8. Nc3 Ne7 9. Kh1 0-0 10. Qe1 c5 11. d5 e5 12. fxe5 Nxe5 13. Nxe5 dxe5 14. Bg5 f6 15. Bh4 Nc8 16. Rf3 Nd6 17. h3 Qd7 18. Qf2 g5 19. Bg3 Ba6 20. Qe2 Bc8 21. Rf2 Qe8 22. a4 a5 23. Nb5 Qe7 24. Qd1 Nf7 25. Be2 Nd6 26. Nxd6 Qxd6 27. Bg4 Bxg4 28. Qxg4 Ra7 29. Rd1 h6 30. Rf3 Re7 31. Rb3 Rd8 32. Rdd3 Qc7 33. Rb5 Rd6 34. Rdb3 Re8 35. Qf5 Red8 36. Bf2 R8d7 37. Rxb6 Rxb6 38. Rxb6 Qxb6 39. Qxd7 Qxb2 40. Qc8+ Bf8 41. Bxc5 Qc1+ 42. Bg1 Qd1 43. c5 h5 44. d6 g4 45. Qf5 gxh3 46. Qxh3 Kf7 47. Qf3 Qxa4 48. Qxh5+ Ke6 49. Qh7 Bxd6 50. Qf5+ Kf7 51. cxd6 Qd1 52. Qh7+ Kf8 53. d7 Qd2 54. d8R+ Qxd8 55. Qh8+ Ke7 56. Qxd8+ Kxd8 57. Bb6+ Ke7 58. Bxa5 Ke6 59. g4 1-0

[Event "Hamburg St Pauli op-A"]
[Site "Hamburg"]
[Date "2010.07.13"]
[Round "4"]
[White "Hebbinghaus, Holger"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2291"]
[BlackElo "2028"]
[PlyCount "27"]
[EventDate "2010.07.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. f4 Qa5 5. e5 Ne4 6. Qf3 Nxc3 7. Bd2 e6 8. bxc3 Qb6 9. Qd1 c5 10. Nf3 Nc6 11. Rb1 Qc7 12. Bd3 c4 13. Be2 d5 14. 0-0 1/2-1/2

[Event "Hamburg St Pauli op-A"]
[Site "Hamburg"]
[Date "2010.07.12"]
[Round "3"]
[White "Martin Sommerfeldt, Luis"]
[Black "Moshtael, Wesal"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2028"]
[BlackElo "2155"]
[PlyCount "169"]
[EventDate "2010.07.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 d5 3. Bb2 Bg4 4. e3 Nbd7 5. Be2 Bxf3 6. gxf3 c6 7. d4 g6 8. Nd2 Bg7 9. c4 0-0 10. 0-0 Rc8 11. f4 Re8 12. Bf3 e6 13. c5 h6 14. Bg2 g5 15. fxg5 hxg5 16. f4 Nh7 17. b4 f5 18. Qe2 g4 19. h3 gxh3 20. Bxh3 Qh4 21. Kg2 Kf7 22. Nf3 Qf6 23. Rh1 Rh8 24. Rag1 Rcg8 25. Bc3 Ke8 26. Be1 Qe7 27. Kf1 Bf6 28. Rxg8+ Rxg8 29. b5 Nb8 30. a4 Nf8 31. Bg2 Ng6 32. Nd2 Qg7 33. Rh2 Rh8 34. Rxh8+ Qxh8 35. Nf3 Ne7 36. Qb2 Qh7 37. Qb4 Nc8 38. Qc3 Qe7 39. Qc2 a6 40. bxa6 Nxa6 41. Qb1 Qc7 42. a5 Ne7 43. Ng1 Nb8 44. Bf3 Ng8 45. Bh5+ Kf8 46. Ne2 Bd8 47. Ng3 Qh7 48. Bf3 Nf6 49. Qb2 Ne4 50. Nxe4 fxe4 51. Bg2 Bf6 52. Qb6 Ke8 53. Bg3 Bd8 54. Qb4 Na6 55. Qa4 Qc7 56. Be1 Qh7 57. Qb3 Bf6 58. Qd1 Qg7 59. Bh3 Qf7 60. Qg4 Ke7 61. Bg3 Nb4 62. Ke2 Nd3 63. Kd2 Nb2 64. Bf1 Qf8 65. Kc3 Nc4 66. Bxc4 dxc4 67. Kxc4 Qd8 68. Kb4 Qd5 69. Qd1 Qa2 70. Be1 Kd7 71. Bc3 Bd8 72. Qa4 Qb1+ 73. Ka3 Qc1+ 74. Bb2 Qxe3+ 75. Ka2 Qd3 76. Qb4 Qa6 77. Bc3 Bc7 78. f5 exf5 79. Qb3 Qe2+ 80. Ka3 Kc8 81. Qg8+ Bd8 82. Qe6+ Kb8 83. Qe8 Kc8 84. Qe6+ Kb8 85. Qe8 1/2-1/2

[Event "Hamburg St Pauli op-A"]
[Site "Hamburg"]
[Date "2010.07.11"]
[Round "2"]
[White "Seehagen, Jan"]
[Black "Martin Sommerfeldt, Luis"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "1910"]
[BlackElo "2028"]
[PlyCount "104"]
[EventDate "2010.07.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. c4 Bg7 4. Nf3 b6 5. Nc3 Bb7 6. Qc2 e6 7. Bg5 Ne7 8. Be2 h6 9. Be3 Nd7 10. h3 a6 11. Qd2 c6 12. 0-0 Qc7 13. Rac1 Rd8 14. Ne1 Qb8 15. f3 Kf8 16. Bd3 Kg8 17. Qf2 c5 18. b3 Nc6 19. dxc5 Nxc5 20. Bb1 b5 21. cxb5 axb5 22. Kh1 Nd7 23. Bd3 b4 24. Na4 Kh7 25. Bb5 Rc8 26. Nd3 Nde5 27. Nxe5 Nxe5 28. Ba7 Qa8 29. f4 Nc6 30. Be3 Qa5 31. Bd3 Qd8 32. Nb6 Rc7 33. Rfd1 Ne7 34. f5 Rxc1 35. Rxc1 Nc6 36. Qg3 Ne5 37. Bb1 Bf6 38. Nc4 Rg8 39. Bf4 gxf5 40. Qe3 Nxc4 41. Rxc4 e5 42. Bh2 Bg5 43. Qa7 Qa8 44. Bg1 Qxa7 45. Bxa7 Bxe4 46. Bxe4 fxe4 47. Rxe4 Bd2 48. Be3 Bc3 49. Rh4 Rg6 50. Rc4 d5 51. Rc7 d4 52. Bc1 Rf6 0-1

[Event "Hamburg St Pauli op-A"]
[Site "Hamburg"]
[Date "2010.07.10"]
[Round "1"]
[White "Martin Sommerfeldt, Luis"]
[Black "Lauridsen, Jesper Morch"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "2028"]
[BlackElo "2275"]
[PlyCount "102"]
[EventDate "2010.07.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. e3 0-0 5. Be2 d6 6. d4 Nbd7 7. Nbd2 e5 8. dxe5 Ng4 9. 0-0 Ngxe5 10. Qc1 Qe7 11. c4 a5 12. Qc2 Nc5 13. Nxe5 dxe5 14. a3 Bf5 15. e4 Bd7 16. Rfe1 f5 17. exf5 Bxf5 18. Qc3 Rad8 19. Qe3 Nd3 20. Bxd3 Rxd3 21. Qe2 Rfd8 22. Nf1 Rxb3 23. Ne3 Bd3 24. Qd2 Bxc4 25. Qc2 Be6 26. Nc4 Bxc4 27. Qxc4+ Qf7 28. Qc2 Rbd3 29. Rad1 Rxd1 30. Rxd1 Rxd1+ 31. Qxd1 h5 32. h3 b6 33. a4 Kh7 34. g4 hxg4 35. hxg4 Qc4 36. g5 Qb4 37. Bc1 Qd4 38. Qb3 Qg4+ 39. Kf1 e4 40. Be3 Qd7 41. Kg2 Qg4+ 42. Kf1 Qd7 43. Kg2 Be5 44. Qc2 Qf5 45. Qc6 Bd6 46. Qe8 Bc5 47. Bxc5 Qxg5+ 48. Kf1 Qc1+ 49. Kg2 Qxc5 50. Qxe4 c6 51. f4 Qd5 0-1

[Event "Harburg-chB 6th"]
[Site "Hamburg"]
[Date "2008.07.20"]
[Round "5"]
[White "Martin Sommerfeldt, Luis"]
[Black "Herlan, Klaus Juergen"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2067"]
[BlackElo "1969"]
[PlyCount "29"]
[EventDate "2008.07.18"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. b3 b6 7. Bb2 Bb7 8. Nbd2 Nbd7 9. c4 c5 10. e3 Rc8 11. Rc1 dxc4 12. bxc4 e6 13. Qb3 Rc7 14. Rfd1 Qa8 15. Ne1 1/2-1/2

[Event "Harburg-chB 6th"]
[Site "Hamburg"]
[Date "2008.07.20"]
[Round "4"]
[White "Sternberg, Lew"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2072"]
[BlackElo "2067"]
[PlyCount "138"]
[EventDate "2008.07.18"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. d3 g6 4. f4 Bg7 5. Nf3 Nc6 6. Be3 b6 7. Qc1 Nge7 8. Ne2 Ba6 9. g4 d6 10. Ng3 Qd7 11. c3 f5 12. h3 h6 13. Qc2 0-0 14. Bg2 Rac8 15. gxf5 exf5 16. Nh4 Qe6 17. Qd2 Kh7 18. Nf3 c4 19. h4 cxd3 20. h5 Rce8 21. hxg6+ Qxg6 22. Ng5+ Kg8 23. exf5 Rxf5 24. Nxf5 Qxf5 25. Bh3 Qg6 26. Be6+ Kf8 27. f5 Nxf5 28. Bxf5 Qxf5 29. Rf1 Qxf1+ 30. Kxf1 hxg5 31. Re1 Ne5 32. Bxg5 Re6 33. b3 Nf3 34. Rxe6 Nxd2+ 35. Bxd2 Bxc3 36. Ke1 Be5 37. Kf2 Bc8 38. Rh6 Bf5 39. Ke3 Kg7 40. Rh1 d5 41. a4 Kg6 42. Rg1+ Kf7 43. Rg5 Kf6 44. Rg8 d4+ 45. Kf3 Be6 46. Rf8+ Ke7 47. Bb4+ Kd7 48. Ke4 Bg7 49. Ra8 a5 50. Bd2 Kc6 51. Bf4 Kc5 52. Ra7 Bd5+ 53. Kf5 Bf8 54. Rc7+ Kb4 55. Ke5 Bxb3 56. Kxd4 Bc2 57. Rc4+ Kb3 58. Rc6 Bb4 59. Rxb6 Kxa4 60. Kc4 Be1 61. Rb2 Bb4 62. Bc1 Ba3 63. Kc3 Bxb2+ 64. Kxb2 Kb4 65. Bd2+ Kb5 66. Kc3 a4 67. Bc1 Kc5 68. Ba3+ Kd5 69. Kd2 Bb1 1/2-1/2

[Event "Harburg-chB 6th"]
[Site "Hamburg"]
[Date "2008.07.19"]
[Round "3"]
[White "Martin Sommerfeldt, Luis"]
[Black "Schiele, Lars"]
[Result "1/2-1/2"]
[ECO "B08"]
[WhiteElo "2067"]
[BlackElo "1941"]
[PlyCount "65"]
[EventDate "2008.07.18"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. Nf3 g6 2. e4 Bg7 3. d4 d6 4. Be2 Nf6 5. Nc3 0-0 6. h3 Nc6 7. Be3 e5 8. Qd2 Qe8 9. d5 Ne7 10. g3 Bd7 11. 0-0-0 b5 12. Qd3 b4 13. Nb1 Nexd5 14. exd5 e4 15. Qc4 exf3 16. Bxf3 a5 17. Qh4 Bf5 18. Qc4 Nd7 19. g4 Ne5 20. Qf4 Bxc2 21. Kxc2 Qa4+ 22. Kd2 Qxa2 23. Ke2 Qxb2+ 24. Kf1 a4 25. Bd4 Qc2 26. Rc1 Qd3+ 27. Be2 Qb3 28. Qe4 a3 29. Nd2 Qa4 30. Bd1 Qb5+ 31. Be2 Qa4 32. Bd1 Qb5+ 33. Be2 1/2-1/2

[Event "Harburg-chB 6th"]
[Site "Hamburg"]
[Date "2008.07.19"]
[Round "2"]
[White "Wennmann, Thorsten"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1/2-1/2"]
[ECO "E16"]
[WhiteElo "2106"]
[BlackElo "2067"]
[PlyCount "25"]
[EventDate "2008.07.18"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. 0-0 0-0 7. Nbd2 c5 8. dxc5 Bxc5 9. b3 d5 10. cxd5 Nxd5 11. Bb2 Nd7 12. Nc4 b5 13. Nce5 1/2-1/2

[Event "Harburg-chB 6th"]
[Site "Hamburg"]
[Date "2008.07.18"]
[Round "1"]
[White "Martin Sommerfeldt, Luis"]
[Black "Schmidt Brauns, Rainer"]
[Result "1/2-1/2"]
[ECO "A26"]
[WhiteElo "2067"]
[BlackElo "2036"]
[PlyCount "102"]
[EventDate "2008.07.18"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. c4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 g6 5. Bg2 Bg7 6. 0-0 0-0 7. Ne1 d6 8. d3 Be6 9. h3 Rb8 10. Rb1 a5 11. a3 d5 12. cxd5 Nxd5 13. Bd2 Qd7 14. Kh2 f5 15. Nc2 Kh8 16. Ne3 Nxe3 17. fxe3 Ne7 18. b4 axb4 19. axb4 c6 20. Na4 b6 21. Qc2 Bd5 22. e4 fxe4 23. Rxf8+ Bxf8 24. dxe4 Bg8 25. Be3 b5 26. Nc5 Qe8 27. Qc3 Bg7 28. Ra1 Ra8 29. Rxa8 Qxa8 30. Bf3 Qa2 31. Kg2 Nc8 32. Qd3 Nb6 33. Qd8 Nc4 34. Bg5 Qa7 35. Nd7 Ne3+ 36. Bxe3 Qxe3 37. Nf6 Qb3 38. Nxg8 Qxg8 39. Qd6 Qe8 40. Bg4 Bf8 41. Qf6+ Bg7 42. Qd6 Bf8 43. Qc7 Bxb4 44. Bd7 Qe7 45. Qxc6 Bc5 46. Qxb5 Qf8 47. e3 Qd6 48. h4 Bxe3 49. Bg4 Qe7 50. Qd5 Bd4 51. Bf3 Kg7 1/2-1/2

[Event "Hamburg Junge op"]
[Site "Hamburg"]
[Date "2005.10.09"]
[Round "9"]
[White "Martin Sommerfeldt, Luis"]
[Black "Willim, Michael"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "2116"]
[BlackElo "2098"]
[PlyCount "14"]
[EventDate "2005.10.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 108 Extra"]
[Source "ChessBase"]
[SourceDate "2005.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.04"]
[SourceQuality "1"]

1. Nf3 e6 2. d4 Nf6 3. Bg5 c5 4. c3 cxd4 5. cxd4 Qa5+ 6. Bd2 Qb6 7. Qc2 Nc6 1/2-1/2

[Event "Hamburg Junge op"]
[Site "Hamburg"]
[Date "2005.10.08"]
[Round "8"]
[White "Klamp, Christoph"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "E17"]
[WhiteElo "2112"]
[BlackElo "2116"]
[PlyCount "87"]
[EventDate "2005.10.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 108 Extra"]
[Source "ChessBase"]
[SourceDate "2005.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.04"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. 0-0 e6 5. c4 Be7 6. d4 0-0 7. d5 exd5 8. Nh4 Ne4 9. cxd5 Nd6 10. Nf3 c5 11. Re1 f5 12. Nc3 Nf7 13. Qd3 g6 14. h4 d6 15. e4 fxe4 16. Qxe4 Bf6 17. h5 g5 18. Bf1 Ne5 19. Nxe5 Bxe5 20. Bd3 Rf7 21. Qg4 Bc8 22. Qxg5+ Qxg5 23. Bxg5 Bg4 24. f4 Bd4+ 25. Kg2 Nd7 26. Be2 Bf5 27. g4 Bxc3 28. bxc3 Be4+ 29. Bf3 Bd3 30. Kg3 Raf8 31. Bh6 Rd8 32. Re6 Nf8 33. Rae1 b5 34. a3 a5 35. Re8 Rxe8 36. Rxe8 b4 37. axb4 axb4 38. cxb4 cxb4 39. Rb8 Bc2 40. Rxb4 Nd7 41. Rc4 Bd3 42. Rc8+ Nf8 43. g5 Bf5 44. Rd8 1-0

[Event "Hamburg Junge op"]
[Site "Hamburg"]
[Date "2005.10.07"]
[Round "5"]
[White "Martin Sommerfeldt, Luis"]
[Black "Schormann, Conrad"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2116"]
[BlackElo "2111"]
[PlyCount "108"]
[EventDate "2005.10.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 108 Extra"]
[Source "ChessBase"]
[SourceDate "2005.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.04"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. c3 Qb6 5. Qb3 Nc6 6. e3 c4 7. Qxb6 axb6 8. Nbd2 b5 9. Be2 b4 10. cxb4 Nxb4 11. 0-0 e6 12. Ne5 Be7 13. a3 Nc6 14. Nxc6 bxc6 15. Nb1 c5 16. Nc3 cxd4 17. exd4 0-0 18. Rfb1 Bd7 19. f3 Rfc8 20. Bd1 Ne8 21. Bc2 h5 22. Re1 Bd6 23. Bd2 Rcb8 24. Rab1 Nc7 25. g3 g6 26. Kf2 Kg7 27. f4 Ra7 28. Rec1 Na8 29. Na2 Ba4 30. Bxa4 Rxa4 31. Bb4 Bxb4 32. Nxb4 Rb7 33. Rc2 Nc7 34. Rd1 Na6 35. Na2 Rb3 36. Rdd2 Rb7 37. Ke2 Nc7 38. Nb4 Ra8 39. Ke3 Na6 40. Na2 Rab8 41. Ke2 Kf6 42. Kd1 Kf5 43. Re2 Rb6 44. Nc3 Nc7 45. Rcd2 Nb5 46. Re5+ Kf6 47. Na2 Na7 48. Nb4 Nc6 49. Nxc6 Rxc6 50. Re3 Rcb6 51. Kc1 Ke7 52. Rc3 Kd6 53. Re2 Kc6 54. b4 Kb5 1/2-1/2

[Event "Hamburg Junge op"]
[Site "Hamburg"]
[Date "2005.10.07"]
[Round "7"]
[White "Martin Sommerfeldt, Luis"]
[Black "Wobbe, Sven"]
[Result "0-1"]
[ECO "A38"]
[WhiteElo "2116"]
[BlackElo "2200"]
[PlyCount "76"]
[EventDate "2005.10.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 108 Extra"]
[Source "ChessBase"]
[SourceDate "2005.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.04"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 d6 3. g3 Nf6 4. Bg2 g6 5. 0-0 Bg7 6. Nc3 0-0 7. d3 Nc6 8. Bd2 a6 9. Ne1 e6 10. Nc2 Rb8 11. Rb1 Bd7 12. b4 cxb4 13. Nxb4 Qc7 14. Nxc6 Bxc6 15. Bxc6 Qxc6 16. Qb3 Nd7 17. Rfc1 h5 18. Be3 b6 19. Qa3 Ra8 20. Ne4 Nc5 21. Nd2 Rfb8 22. d4 Nd7 23. d5 exd5 24. cxd5 Qxd5 25. Nc4 b5 26. Qxd6 Nf6 27. Bc5 Rd8 28. Qxd5 Nxd5 29. Ne3 Nc3 30. Rb2 Rac8 31. Ba3 Bf8 32. Bxf8 Nxe2+ 33. Rxe2 Rxc1+ 34. Kg2 Kxf8 35. Nc2 a5 36. Na3 b4 37. Nb5 a4 38. Re4 Rb8 0-1

[Event "Hamburg Junge op"]
[Site "Hamburg"]
[Date "2005.10.06"]
[Round "6"]
[White "Juergens, Bernhard"]
[Black "Martin Sommerfeldt, Luis"]
[Result "0-1"]
[ECO "C25"]
[WhiteElo "2136"]
[BlackElo "2116"]
[PlyCount "74"]
[EventDate "2005.10.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 108 Extra"]
[Source "ChessBase"]
[SourceDate "2005.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.04"]
[SourceQuality "1"]

1. e4 d6 2. Nc3 g6 3. g3 Bg7 4. Bg2 e5 5. d3 Nc6 6. f4 Nge7 7. Nf3 Bg4 8. h3 Bxf3 9. Qxf3 Nd4 10. Qf2 0-0 11. Be3 c5 12. 0-0 exf4 13. Bxf4 Qd7 14. Qd2 Rae8 15. Rf2 Ne6 16. Bh6 Bd4 17. Bxf8 Bxf2+ 18. Qxf2 Rxf8 19. Rf1 f5 20. Qd2 Nd4 21. exf5 Rxf5 22. Rxf5 Qxf5 23. g4 Qe5 24. Ne4 b6 25. Qf2 Kg7 26. c3 Ne6 27. Ng3 Nd5 28. Bxd5 Qxd5 29. Ne4 Qe5 30. Qf3 d5 31. Nf2 Ng5 32. Qg2 Qe3 33. Qxd5 Nxh3+ 34. Kh2 Nxf2 35. Qd7+ Kh6 36. Kg2 Nxd3 37. Qd8 Nf4+ 0-1

[Event "Hamburg Junge op"]
[Site "Hamburg"]
[Date "2005.10.04"]
[Round "4"]
[White "Moehrmann, Marcus"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2091"]
[BlackElo "2116"]
[PlyCount "76"]
[EventDate "2005.10.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 108 Extra"]
[Source "ChessBase"]
[SourceDate "2005.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 b6 6. cxd5 exd5 7. Nf3 Bb7 8. Bd3 Nbd7 9. 0-0 h6 10. Bf4 0-0 11. Nb5 Ne8 12. Rc1 c6 13. Nc3 Bd6 14. Bg3 Bxg3 15. hxg3 Qe7 16. a3 Nd6 17. b4 a6 18. Bb1 Nc4 19. Qd3 g6 20. Rfe1 Qd6 21. e4 Nxa3 22. e5 Qe6 23. Nxd5 cxd5 24. Qxa3 Rac8 25. Bd3 Nb8 26. b5 a5 27. Rxc8 Rxc8 28. Rc1 Qd7 29. Kf1 Kg7 30. Ke2 Rxc1 31. Qxc1 Qc8 32. Qa3 Qc7 33. Kd2 Bc8 34. Ne1 Be6 35. Nc2 Qd8 36. Qc3 h5 37. Ne3 Nd7 38. f4 f5 1/2-1/2

[Event "Hamburg Junge op"]
[Site "Hamburg"]
[Date "2005.10.03"]
[Round "3"]
[White "Martin Sommerfeldt, Luis"]
[Black "Stellwagen, Robin"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2116"]
[BlackElo "2167"]
[PlyCount "72"]
[EventDate "2005.10.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 108 Extra"]
[Source "ChessBase"]
[SourceDate "2005.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.04"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 c5 5. c3 cxd4 6. exd4 d5 7. Be2 0-0 8. 0-0 Bg4 9. h3 Bxf3 10. Bxf3 Nc6 11. Nd2 Rc8 12. Re1 Re8 13. Nf1 e6 14. Qd3 Na5 15. Rac1 Qd7 16. g4 Red8 17. Kg2 b5 18. Be2 a6 19. Ra1 Ra8 20. f3 Rdc8 21. b3 Ne8 22. Nd2 Bf8 23. a4 b4 24. Rac1 bxc3 25. Rxc3 Bb4 26. Rc2 Rxc2 27. Qxc2 Rc8 28. Qd3 Rc6 29. Rf1 Qc8 30. Nb1 Nb7 31. Bd1 a5 32. Rf2 Nc7 33. Rc2 Na6 34. Rxc6 Qxc6 35. Be2 Nc7 36. Qd1 Nd8 1/2-1/2

[Event "Hamburg Junge op"]
[Site "Hamburg"]
[Date "2005.10.02"]
[Round "2"]
[White "Fruebing, Stefan"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "B05"]
[WhiteElo "2233"]
[BlackElo "2116"]
[PlyCount "115"]
[EventDate "2005.10.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 108 Extra"]
[Source "ChessBase"]
[SourceDate "2005.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.04"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 e6 6. c4 Nb6 7. Nc3 dxe5 8. Nxe5 Bxe2 9. Nxe2 Bb4+ 10. Nc3 0-0 11. Qg4 N8d7 12. Bh6 Qf6 13. Nxd7 Nxd7 14. Be3 c6 15. 0-0 Rfe8 16. h3 Qf5 17. Rac1 Qxg4 18. hxg4 b6 19. Rfd1 Rac8 20. f3 h6 21. Kf2 Be7 22. a3 Kf8 23. Bf4 e5 24. dxe5 Bc5+ 25. Kf1 Nxe5 26. b4 Ng6 27. Bxh6 gxh6 28. bxc5 bxc5 29. Ne4 Rb8 30. Rd7 Ne5 31. Nxc5 Nxd7 32. Nxd7+ Ke7 33. Nxb8 Rxb8 34. Re1+ Kd7 35. Rd1+ Ke7 36. Kf2 Rb3 37. c5 Rc3 38. Rd6 Rxc5 39. Rxh6 a5 40. g5 Rc3 41. g6 f5 42. Rh5 Kf6 43. Rxf5+ Kxg6 44. Rxa5 c5 45. g4 c4 46. Rc5 Rxa3 47. Rxc4 Kg5 48. Rc5+ Kg6 49. Kg3 Rb3 50. Re5 Rb4 51. f4 Rb3+ 52. Kh4 Rb4 53. f5+ Kf6 54. Re6+ Kf7 55. Kg5 Ra4 56. Rb6 Rc4 57. Rb7+ Kg8 58. Kh5 1-0

[Event "Hamburg Junge op"]
[Site "Hamburg"]
[Date "2005.10.01"]
[Round "1"]
[White "Martin Sommerfeldt, Luis"]
[Black "Jacoby, Gisbert"]
[Result "1-0"]
[ECO "D04"]
[WhiteElo "2116"]
[BlackElo "2226"]
[PlyCount "120"]
[EventDate "2005.10.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 108 Extra"]
[Source "ChessBase"]
[SourceDate "2005.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.04"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 c5 3. e3 Nf6 4. b3 cxd4 5. exd4 Nc6 6. Be2 Bf5 7. a3 e6 8. 0-0 h6 9. Bb2 Bd6 10. c4 0-0 11. Nc3 Rc8 12. c5 Bb8 13. b4 Ne4 14. Re1 Ng5 15. g3 Qf6 16. Nxg5 hxg5 17. Na2 Qh6 18. Bf3 f6 19. Bc1 Qg6 20. Nc3 Bc2 21. Qd2 Rce8 22. Ra2 Bd3 23. Qd1 Nxd4 24. Bh5 Qf5 25. Re3 Bc4 26. Qxd4 e5 27. Qd1 d4 28. Rf3 Qe6 29. Ne4 Bxa2 30. Bg6 f5 31. Bh7+ Kh8 32. Nxg5 Qh6 33. Nf7+ Rxf7 34. Bxh6 Kxh7 35. Bd2 e4 36. Rb3 Bxb3 37. Qxb3 Rd7 38. b5 Rde7 39. Qd5 Re5 40. Qxd4 Bc7 41. Bf4 R5e7 42. Qd5 Bxf4 43. Qxf5+ Kg8 44. Qxf4 e3 45. fxe3 Rxe3 46. Kg2 Re2+ 47. Kh3 R2e5 48. c6 bxc6 49. bxc6 R5e7 50. Qd6 Kf7 51. Qd5+ Kf6 52. Kg4 Re4+ 53. Kf3 Re3+ 54. Kf4 R8e5 55. Qd6+ Re6 56. Qd4+ R3e5 57. c7 g5+ 58. Kg4 Re8 59. Qd8+ Kg6 60. c8Q Re4+ 1-0

[Event "Oberliga Nord N 9192"]
[Site "Germany"]
[Date "1992.??.??"]
[Round "?"]
[White "Dettmann, Gerd"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1/2-1/2"]
[ECO "E18"]
[PlyCount "133"]
[EventDate "1991.10.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 b6 5. 0-0 Bb7 6. Ne5 Nbd7 7. Nxd7 Qxd7 8. c4 Be7 9. Nc3 0-0 10. Bg5 h6 11. Bf4 Rfd8 12. Rc1 c5 13. cxd5 Nxd5 14. Nxd5 Bxd5 15. dxc5 Bxg2 16. Qxd7 Rxd7 17. Kxg2 Bxc5 18. Rfd1 Rad8 19. Rxd7 Rxd7 20. a3 a5 21. a4 e5 22. Bxe5 Re7 23. f4 f6 24. Bc3 Rxe2+ 25. Kh3 Kf7 26. Re1 Rc2 27. Rd1 Be3 28. f5 h5 29. g4 hxg4+ 30. Kxg4 Rxh2 31. Rd7+ Kg8 32. Rd5 Rc2 33. Kf3 Bc5 34. Ke4 Rh2 35. Kd3 Rh4 36. b3 Bg1 37. Be1 Rg4 38. Rb5 Rd4+ 39. Ke2 Re4+ 40. Kf1 Be3 41. Bc3 Kh7 42. Kg2 Rf4 43. Kg3 Rf1 44. b4 axb4 45. Bxb4 Kh6 46. Bf8 Ra1 47. Rb4 Kg5 48. Bxg7 Kxf5 49. Kf3 Ra3 50. Ke2 Bc5 51. Rc4 Re3+ 52. Kd2 Rh3 53. a5 Be3+ 54. Ke2 bxa5 55. Rc3 Ke4 56. Bxf6 Rh2+ 57. Kd1 Rd2+ 58. Ke1 Rd6 59. Ke2 Rd2+ 60. Ke1 Ra2 61. Kd1 Rf2 62. Be7 Bd4 63. Ra3 a4 64. Bb4 Bb2 65. Rxa4 Kd3 66. Ra2 Rf1+ 67. Be1 1/2-1/2

[Event "Oberliga Nord N 9192"]
[Site "Germany"]
[Date "1992.??.??"]
[Round "?"]
[White "Martin Sommerfeldt, Luis"]
[Black "Pachow, Joerg"]
[Result "0-1"]
[ECO "A48"]
[BlackElo "2240"]
[PlyCount "66"]
[EventDate "1991.10.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 0-0 5. b3 b6 6. Bb2 Bb7 7. 0-0 a5 8. c4 Ne4 9. Nc3 Nxc3 10. Bxc3 e6 11. Qd3 f5 12. Nd2 Qe7 13. Bf3 d5 14. a3 Nd7 15. b4 Nf6 16. bxa5 Ne4 17. axb6 Rxa3 18. Rxa3 Qxa3 19. Nb1 Qa6 20. bxc7 dxc4 21. Qc2 Rc8 22. Be2 Rxc7 23. f3 Nxc3 24. Qxc3 f4 25. Na3 fxe3 26. Rb1 Bd5 27. Qxe3 Rb7 28. Rxb7 Qxb7 29. Nxc4 Qb4 30. Qd3 Qe1+ 31. Bf1 Bxc4 32. Qxc4 Qe3+ 33. Kh1 Bxd4 0-1

[Event "Oberliga Nord N 9192"]
[Site "Germany"]
[Date "1992.??.??"]
[Round "?"]
[White "Peters, Carsten"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2285"]
[PlyCount "119"]
[EventDate "1991.10.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. Qc2 Nbd7 7. e3 Bd6 8. Bd3 h6 9. Bh4 Qc7 10. Nge2 b6 11. Rb1 Bb7 12. b4 0-0 13. Bg3 a6 14. 0-0 Rfe8 15. Rfc1 Rac8 16. Qb3 Bxg3 17. Nxg3 Qd6 18. Nf5 Qe6 19. Ne2 Nf8 20. Nf4 Qd7 21. Ng3 g6 22. Be2 Qd6 23. h4 Rb8 24. h5 Ne4 25. Nxe4 Rxe4 26. Bd3 Re7 27. hxg6 fxg6 28. Qc2 Kg7 29. a4 b5 30. Be2 Rbe8 31. Bg4 Bc8 32. Bxc8 Rxc8 33. Nd3 Nd7 34. axb5 axb5 35. Ra1 Nb6 36. Ra6 Nc4 37. Rca1 h5 38. Nc5 Rf8 39. Qe2 Rf4 40. Ra7 Rff7 41. Rxe7 Rxe7 42. Qf3 Rf7 43. Qh3 Qf6 44. Ne6+ Kh6 45. Nf4 Qe7 46. Qg3 g5 47. Nh3 Rg7 48. Ra8 Kh7 49. Qf3 Kg6 50. Rc8 Qd7 51. Qf8 h4 52. Re8 Qf7 53. Qh8 Qd7 54. f4 Kf5 55. Nxg5 Kg4 56. Nf3 Rh7 57. Rg8+ Kf5 58. Rf8+ Ke4 59. Ng5+ Kd3 60. Qxh7+ 1-0

[Event "Oberliga Nord N 9192"]
[Site "Germany"]
[Date "1992.??.??"]
[Round "?"]
[White "Reschke, Heinz"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1/2-1/2"]
[ECO "A34"]
[PlyCount "144"]
[EventDate "1991.10.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nf6 3. Nf3 d5 4. cxd5 Nxd5 5. g3 Nc6 6. Bg2 Nc7 7. d3 e5 8. 0-0 Be7 9. Nd2 0-0 10. Nc4 f6 11. f4 Be6 12. Qa4 Nd5 13. fxe5 fxe5 14. Rxf8+ Bxf8 15. Bd2 Rb8 16. Nxd5 Bxd5 17. Bxd5+ Qxd5 18. Ne3 Qd4 19. Qc4+ Qxc4 20. dxc4 Nd4 21. Re1 Rd8 22. Bc3 Be7 23. Nd5 Bg5 24. Kg2 e4 25. h4 Bh6 26. Rd1 Ne6 27. Ne7+ Kf7 28. Rxd8 Nxd8 29. Nf5 Kg6 30. Nxh6 gxh6 31. g4 h5 32. Kg3 Ne6 33. e3 hxg4 34. Kxg4 h5+ 35. Kg3 Kf5 36. b3 Nd8 37. Bg7 Nc6 38. Bc3 a6 39. a4 b6 40. Bd2 Ne5 41. Bc3 Nd3 42. Bd2 Ke5 43. Kg2 Kd6 44. Kf1 Kc6 45. Ke2 b5 46. axb5+ axb5 47. cxb5+ Kxb5 48. Kd1 Ne5 49. Be1 Nf3 50. Bg3 Kb4 51. Kc2 c4 52. bxc4 Kxc4 53. Bf2 Kd5 54. Kc3 Ke6 55. Kc4 Kf5 56. Kd5 Ne5 57. Bg3 Nd7 58. Bf4 Nb6+ 59. Kd4 Na4 60. Bg5 Nb2 61. Bd8 Nd3 62. Bg5 Nf2 63. Bf4 Kg4 64. Bg5 Kf3 65. Bh6 Nd3 66. Bg5 Ne1 67. Kc3 Kg4 68. Kd4 Kf5 69. Kd5 Nf3 70. Bd8 Nd2 71. Bg5 Kg4 72. Kd4 Kf3 1/2-1/2

[Event "Oberliga Nord N 9192"]
[Site "Germany"]
[Date "1992.??.??"]
[Round "?"]
[White "Rhodin, Christian"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2245"]
[PlyCount "85"]
[EventDate "1991.10.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. Bf4 Qa5 5. e5 Nd5 6. Bd2 dxe5 7. dxe5 e6 8. Ne4 Qc7 9. Nf3 c5 10. c4 Nb6 11. Bc3 Be7 12. Nd6+ Kf8 13. Qd2 Nc6 14. Qf4 Bxd6 15. exd6 Qd7 16. Ne5 Nxe5 17. Qxe5 f6 18. Qxc5 Na4 19. Qb4 Nxc3 20. bxc3 Kf7 21. Be2 Rd8 22. c5 b6 23. Qe4 Bb7 24. Qxh7 Rg8 25. Bh5+ Kf8 26. 0-0 bxc5 27. Rad1 Bd5 28. Qd3 c4 29. Qg3 Rd8 30. Rb1 Rh8 31. Bg4 Rh6 32. Rfd1 Qc6 33. Bf3 Kf7 34. Bxd5 exd5 35. Re1 Rxd6 36. Qe3 Rh5 37. Rb7+ Kg6 38. Qe7 Rg5 39. Qxg7+ Kf5 40. Qh7+ Kg4 41. h3+ Kf4 42. g3+ Rxg3+ 43. fxg3+ 1-0

[Event "Oberliga Nord N 9192"]
[Site "Germany"]
[Date "1992.??.??"]
[Round "?"]
[White "Van Riesen, Klaus"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "63"]
[EventDate "1991.10.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. Bg5 Qa5 5. Qd2 h6 6. Be3 Ng4 7. Bf4 e5 8. Bg3 Be7 9. Nf3 Nd7 10. Bc4 0-0 11. Bb3 Qc7 12. h3 Ngf6 13. dxe5 dxe5 14. 0-0-0 Nh5 15. Bh2 Bf6 16. g4 Nf4 17. h4 Nc5 18. Rdg1 g5 19. hxg5 hxg5 20. Bg3 Be6 21. Bxf4 exf4 22. Rh5 Bxb3 23. axb3 Ne6 24. e5 Bxe5 25. Qd3 Rfd8 26. Qh7+ Kf8 27. Nxg5 Bg7 28. Nge4 f3 29. Kb1 b5 30. Ng3 b4 31. Nf5 Be5 32. Qh8+ 1-0

[Event "Oberliga Nord N 9192"]
[Site "Germany"]
[Date "1992.??.??"]
[Round "?"]
[White "Wandel, Bernd"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1/2-1/2"]
[ECO "D59"]
[PlyCount "97"]
[EventDate "1991.10.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 Nbd7 6. Nf3 h6 7. Bh4 0-0 8. Be2 b6 9. cxd5 Nxd5 10. Nxd5 exd5 11. Bxe7 Qxe7 12. 0-0 Bb7 13. Qb3 Rfb8 14. Rac1 c5 15. Qa3 Qd6 16. dxc5 bxc5 17. Bb5 d4 18. Bxd7 Qxd7 19. exd4 cxd4 20. Rfd1 Bxf3 21. Qxf3 Qb7 22. b3 Qxf3 23. gxf3 Rb4 24. Rc7 a5 25. Rd7 a4 26. R7xd4 Rab8 27. Rxb4 Rxb4 28. Rd3 axb3 29. axb3 Kh7 30. Kf1 f6 31. h3 Rh4 32. Kg2 Rb4 33. Re3 Kg6 34. Kg3 Kf7 35. Kg2 Kg6 36. Rc3 Kh7 37. Kf1 Rh4 38. Kg2 Rb4 39. Re3 Kg6 40. Rc3 Kh7 41. Kf1 Rh4 42. f4 Rxf4 43. Ke2 Re4+ 44. Re3 Rf4 45. Rf3 Rd4 46. Ke3 Rd1 47. Ke4 Rd2 48. Ke3 Rd1 49. Ke2 1/2-1/2

[Event "Regionalliga NordN 9091"]
[Site "Germany"]
[Date "1991.05.05"]
[Round "9.1"]
[White "Martin Sommerfeldt, Luis"]
[Black "Hochgraefe, Markus"]
[Result "1/2-1/2"]
[ECO "A48"]
[PlyCount "33"]
[EventDate "1990.10.07"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]
[WhiteTeam "Hamburg FH"]
[BlackTeam "Hamburg Diogenes"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 0-0 5. 0-0 d6 6. b3 Nbd7 7. Bb2 Re8 8. Nbd2 e5 9. dxe5 Ng4 10. Rb1 Ngxe5 11. Be2 Qe7 12. h3 Nxf3+ 13. Nxf3 Bxb2 14. Rxb2 Ne5 15. c4 Bf5 16. Rd2 Be4 17. Nxe5 1/2-1/2

[Event "Regionalliga NordN 9091"]
[Site "Germany"]
[Date "1991.04.14"]
[Round "8.1"]
[White "Behncke, Dieter"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "151"]
[EventDate "1990.10.07"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]
[WhiteTeam "Luebeck"]
[BlackTeam "Hamburg FH"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. Nf3 Bg4 5. Be2 e6 6. 0-0 Be7 7. h3 Bh5 8. Re1 0-0 9. a4 d5 10. e5 Nfd7 11. Nh2 Bg6 12. Bd3 c5 13. Bxg6 hxg6 14. Ne2 cxd4 15. Nxd4 Nc6 16. Nxc6 bxc6 17. Nf3 Qc7 18. h4 Rfb8 19. b3 Nc5 20. Ng5 Rb4 21. Qf3 Rf8 22. Bf4 Qd8 23. g3 f6 24. exf6 Bxf6 25. Qe3 Qe7 26. Rad1 Ne4 27. Nxe4 Rxe4 28. Qd2 Rd4 29. Qe3 Rxd1 30. Rxd1 e5 31. Re1 Re8 32. Bg5 e4 33. Bxf6 Qxf6 34. Qxa7 d4 35. Qc5 Rf8 36. Qc4+ Kh7 37. Qe2 e3 38. fxe3 Qe5 39. Kg2 Qe4+ 40. Kh2 Re8 41. Qg2 Qe6 42. e4 d3 43. cxd3 Qxb3 44. Qe2 Rd8 45. Rd1 Qxa4 46. e5 Qd4 47. e6 Rf8 48. Kg2 Qd5+ 49. Kh3 Rf6 50. Re1 Rf8 51. e7 Re8 52. Qe4 Qd7+ 53. Kg2 Kh8 54. Re3 c5 55. Qe5 Qb7+ 56. Kh2 Qa7 57. h5 Qa2+ 58. Re2 Qf7 59. hxg6 Qxg6 60. Qe4 Qh6+ 61. Kg2 Qd6 62. Re1 g6 63. Qe5+ Qxe5 64. Rxe5 Kg7 65. Kf3 Kf6 66. Ke4 Rxe7 67. Rxe7 Kxe7 68. Kd5 Kf6 69. Kxc5 Kf5 70. d4 Kg4 71. d5 Kxg3 72. d6 g5 73. d7 g4 74. d8Q Kf3 75. Qd4 Kg3 76. Qg1+ 1-0

[Event "Regionalliga NordN 9091"]
[Site "Germany"]
[Date "1991.03.17"]
[Round "7.1"]
[White "Martin Sommerfeldt, Luis"]
[Black "Upleger, Martin"]
[Result "1/2-1/2"]
[ECO "D05"]
[BlackElo "2245"]
[PlyCount "36"]
[EventDate "1990.10.07"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]
[WhiteTeam "Hamburg FH"]
[BlackTeam "Kiel"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 c5 2. e3 e6 3. Nf3 Nf6 4. Bd3 d5 5. b3 Bd6 6. 0-0 Nc6 7. Bb2 0-0 8. a3 Qc7 9. c4 cxd4 10. exd4 e5 11. cxd5 Nxd4 12. Nxd4 exd4 13. h3 Be5 14. Re1 Re8 15. Nd2 Nxd5 16. Bxd4 Nf6 17. Rxe5 Rxe5 18. Bxe5 Qxe5 1/2-1/2

[Event "Regionalliga NordN 9091"]
[Site "Germany"]
[Date "1991.02.17"]
[Round "6.1"]
[White "Lindemann, Stefan"]
[Black "Martin Sommerfeldt, Luis"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2305"]
[PlyCount "53"]
[EventDate "1990.10.07"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]
[WhiteTeam "Luebeck II"]
[BlackTeam "Hamburg FH"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. f4 Qa5 5. Bd3 e5 6. Nf3 Nbd7 7. Be3 Be7 8. Qd2 Qc7 9. 0-0-0 b5 10. Kb1 a6 11. h3 exd4 12. Bxd4 b4 13. Na4 c5 14. Bxf6 Nxf6 15. e5 dxe5 16. fxe5 Nd7 17. Bc4 0-0 18. e6 Nf6 19. exf7+ Kh8 20. Rhe1 Bf5 21. Ne5 Qb7 22. g4 Bg6 23. Qg5 Be4 24. Qe3 g5 25. Nd7 Bg6 26. Qxe7 Nxd7 27. Rxd7 1-0

[Event "Regionalliga NordN 9091"]
[Site "Germany"]
[Date "1991.01.27"]
[Round "5.1"]
[White "Martin Sommerfeldt, Luis"]
[Black "Steckner, Johannes"]
[Result "0-1"]
[ECO "A47"]
[BlackElo "2300"]
[PlyCount "80"]
[EventDate "1990.10.07"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]
[WhiteTeam "Hamburg FH"]
[BlackTeam "Hamburg II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 e6 2. Nf3 Nf6 3. e3 c5 4. c3 b6 5. Bd3 Ba6 6. 0-0 Bxd3 7. Qxd3 Be7 8. Nbd2 0-0 9. a3 Qc7 10. b3 cxd4 11. exd4 Qb7 12. Bb2 Nc6 13. Rfe1 b5 14. Rab1 Rfc8 15. Ne4 Nxe4 16. Qxe4 d5 17. Qe2 Na5 18. Ba1 Bf6 19. h4 Rab8 20. g3 Qe7 21. Qa2 Rb7 22. Re3 Rbc7 23. Rbe1 Nb7 24. Nd2 Qd7 25. Qb1 a5 26. g4 g6 27. g5 Be7 28. Nf3 Bd6 29. Kg2 Bf4 30. Ne5 Qe7 31. Rf3 Bxe5 32. dxe5 Nc5 33. c4 bxc4 34. bxc4 dxc4 35. Bc3 Nd3 36. Bxa5 Rb7 37. Qa1 Nxe1+ 38. Qxe1 Rb3 39. Bb4 Qb7 40. Qe2 Qxf3+ 0-1

