[Event "Moehnesee Cup-A 37th"]
[Site "Moehnesee"]
[Date "2011.09.04"]
[Round "6"]
[White "Gruenhagen, Marc"]
[Black "Schubert, Gerhard"]
[Result "0-1"]
[ECO "A42"]
[WhiteElo "2133"]
[BlackElo "2034"]
[PlyCount "80"]
[EventDate "2011.09.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 d6 2. e4 g6 3. c4 Bg7 4. Nc3 Nd7 5. Be3 e6 6. Nge2 Ne7 7. Qd2 0-0 8. f3 e5 9. d5 f5 10. Nc1 Nf6 11. Be2 f4 12. Bf2 g5 13. Nd3 h5 14. Rc1 b6 15. b4 a5 16. a3 g4 17. c5 axb4 18. axb4 bxc5 19. bxc5 Ng6 20. Nb5 Rf7 21. cxd6 cxd6 22. Nb4 h4 23. Nc6 Qf8 24. Qb4 g3 25. hxg3 fxg3 26. Be3 Nh5 27. Qxd6 Nhf4 28. Qxf8+ Bxf8 29. Bf1 h3 30. Bxf4 Nxf4 31. gxh3 g2 32. Bxg2 Nxg2+ 33. Kf1 Ra2 34. Nxe5 Ne3+ 35. Ke1 Ng2+ 36. Kf1 Ne3+ 37. Ke1 Bb4+ 38. Nc3 Ba6 39. Rg1+ Rg7 40. Rxg7+ Kxg7 0-1

[Event "Moehnesee Cup-A 37th"]
[Site "Moehnesee"]
[Date "2011.09.03"]
[Round "4"]
[White "Gruenhagen, Marc"]
[Black "Zirwes, Hans Juergen"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "2133"]
[BlackElo "1911"]
[PlyCount "94"]
[EventDate "2011.09.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Bf4 Nc6 5. Nc3 Nf6 6. e3 a6 7. Bd3 e6 8. Rc1 Be7 9. Nge2 Bd7 10. a3 Rc8 11. Bg5 b5 12. b4 0-0 13. f3 Ne8 14. Bxe7 Nxe7 15. 0-0 Nd6 16. e4 Bc6 17. e5 Nc4 18. Bxc4 dxc4 19. Ng3 Qb6 20. Qd2 Rfd8 21. Rfd1 Bb7 22. Qf2 Rc7 23. Nge4 Bxe4 24. Nxe4 Rcd7 25. Nc5 Rd5 26. Rd2 Nc6 27. Rcd1 a5 28. bxa5 Nxa5 29. h4 Nc6 30. h5 h6 31. f4 Nxd4 32. Rxd4 Qxc5 33. Rxd5 Qxf2+ 34. Kxf2 Rxd5 35. Rc1 Rd2+ 36. Kf3 Rd3+ 37. Ke4 Rxa3 38. Rb1 Ra4 39. Kd4 c3+ 40. Kxc3 Rxf4 41. Rxb5 Rf5 42. g4 Rg5 43. Rb8+ Kh7 44. Rf8 Rxe5 45. Rxf7 Re4 46. Re7 Rxg4 47. Kd3 Rg5 0-1

[Event "Moehnesee Cup-A 37th"]
[Site "Moehnesee"]
[Date "2011.09.03"]
[Round "5"]
[White "Neukoetter, Moritz"]
[Black "Gruenhagen, Marc"]
[Result "0-1"]
[ECO "B26"]
[WhiteElo "1707"]
[BlackElo "2133"]
[PlyCount "56"]
[EventDate "2011.09.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 e5 7. Qd2 Nge7 8. Bh6 0-0 9. h4 Bxh6 10. Qxh6 f6 11. Nge2 Nd4 12. 0-0-0 Be6 13. Rdf1 Kh8 14. Qe3 b5 15. f4 b4 16. Nb1 Bxa2 17. h5 Nxe2+ 18. Qxe2 g5 19. Bh3 Nc6 20. Nd2 Bg8 21. h6 Nd4 22. Qe3 Qa5 23. Nb1 Qa1 24. Qe1 Ba2 25. Kd2 Qxb2 26. fxg5 Qxc2+ 27. Ke3 Bxb1 28. Qxb1 Qe2# 0-1

[Event "Moehnesee Cup-A 37th"]
[Site "Moehnesee"]
[Date "2011.09.02"]
[Round "2"]
[White "Gruenhagen, Marc"]
[Black "Titgemeyer, Thomas"]
[Result "1/2-1/2"]
[ECO "D40"]
[WhiteElo "2133"]
[BlackElo "1919"]
[PlyCount "40"]
[EventDate "2011.09.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. e3 Nf6 5. Nf3 Nc6 6. a3 a6 7. dxc5 Bxc5 8. b4 Ba7 9. c5 0-0 10. Be2 Qe7 11. Bb2 Rd8 12. 0-0 e5 13. Re1 Bg4 14. Qb3 Bxf3 15. Bxf3 e4 16. Bd1 Rac8 17. Ne2 Bb8 18. Nd4 Ne5 19. Be2 Qc7 20. g3 h5 1/2-1/2

[Event "Moehnesee Cup-A 37th"]
[Site "Moehnesee"]
[Date "2011.09.02"]
[Round "3"]
[White "Wegner, Horst"]
[Black "Gruenhagen, Marc"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "1944"]
[BlackElo "2133"]
[PlyCount "19"]
[EventDate "2011.09.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 d6 6. Nf3 e6 7. Nc3 Nxc3 8. bxc3 Nc6 9. exd6 Bxd6 10. Bd3 1/2-1/2

[Event "Moehnesee Cup-A 37th"]
[Site "Moehnesee"]
[Date "2011.09.01"]
[Round "1"]
[White "Kiehn, Andreas"]
[Black "Gruenhagen, Marc"]
[Result "1/2-1/2"]
[ECO "D60"]
[WhiteElo "1929"]
[BlackElo "2133"]
[PlyCount "54"]
[EventDate "2011.09.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. a4 e6 6. Bg5 Nbd7 7. e3 Be7 8. Bd3 h6 9. Bh4 0-0 10. 0-0 dxc4 11. Bxc4 Qa5 12. e4 e5 13. d5 cxd5 14. Nxd5 Nxd5 15. Qxd5 Qxd5 16. Bxd5 Bxh4 17. Nxh4 Nf6 18. Rfd1 Nxd5 19. Rxd5 Re8 20. Rc1 Be6 21. Rxe5 Bb3 22. Rxe8+ Rxe8 23. f3 Bxa4 24. Rc7 Rb8 25. Nf5 Bb3 26. Nd6 b6 27. Kf2 a5 1/2-1/2

[Event "Dieren op"]
[Site "Dieren"]
[Date "2011.07.23"]
[Round "5"]
[White "Vos, Tjark"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "B43"]
[WhiteElo "1842"]
[BlackElo "2133"]
[PlyCount "45"]
[EventDate "2011.07.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Bd3 Nf6 7. 0-0 d6 8. a4 b6 9. Be3 Be7 10. f4 Nbd7 11. g4 Nc5 12. g5 Nfd7 13. f5 Bb7 14. fxe6 fxe6 15. b4 Nxd3 16. Qxd3 Nf8 17. Rxf8+ Bxf8 18. Nxe6 Qd7 19. Nd5 Rc8 20. Qb3 Bxd5 21. exd5 Be7 22. Rf1 b5 23. Nxg7+ 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2011.07.22"]
[Round "4"]
[White "Gruenhagen, Marc"]
[Black "Beukema, Stefan"]
[Result "0-1"]
[ECO "A80"]
[WhiteElo "2133"]
[BlackElo "2209"]
[PlyCount "62"]
[EventDate "2011.07.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 f5 2. Bg5 h6 3. Bh4 g5 4. Bg3 Nf6 5. e3 d6 6. h4 g4 7. h5 Be6 8. Ne2 Bf7 9. Nf4 e6 10. Bd3 Qe7 11. Nd2 Nbd7 12. Qe2 Bg7 13. Ng6 Bxg6 14. hxg6 0-0-0 15. 0-0-0 Nf8 16. e4 Qd7 17. e5 dxe5 18. dxe5 Nd5 19. Nb3 Nxg6 20. Kb1 Ngf4 21. Bxf4 Nxf4 22. Qe3 Nxd3 23. Qxa7 Qb5 24. a4 Qxe5 25. c3 Qd5 26. Na5 b6 27. Qa6+ Kb8 28. Nc4 Qb7 29. Qb5 Rd5 30. Qb3 Nxf2 31. Rxd5 exd5 0-1

[Event "Dieren op"]
[Site "Dieren"]
[Date "2011.07.21"]
[Round "3"]
[White "Wroblowski, Oliver"]
[Black "Gruenhagen, Marc"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2191"]
[BlackElo "2133"]
[PlyCount "10"]
[EventDate "2011.07.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 1/2-1/2

[Event "Dieren op"]
[Site "Dieren"]
[Date "2011.07.20"]
[Round "2"]
[White "Vogel, Jaap"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2221"]
[BlackElo "2133"]
[PlyCount "97"]
[EventDate "2011.07.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c6 3. c4 Nf6 4. e3 a6 5. Nbd2 Bf5 6. Be2 e6 7. Nh4 Bg6 8. Nxg6 hxg6 9. Qc2 Nbd7 10. 0-0 Qc7 11. g3 c5 12. cxd5 Nxd5 13. Ne4 Rc8 14. Bd2 cxd4 15. Qxc7 Rxc7 16. exd4 Bb4 17. Bxb4 Nxb4 18. Rfc1 Rxc1+ 19. Rxc1 0-0 20. Rc7 Nf6 21. Rxb7 a5 22. Ng5 Nc6 23. Bc4 Nxd4 24. b3 Rd8 25. Nxf7 Rd7 26. Rxd7 Nxd7 27. Ng5 Nc5 28. f3 Kf8 29. Kf2 Ke7 30. Ke3 Nf5+ 31. Kd2 Kf6 32. f4 Nd6 33. Bd3 Nxd3 34. Kxd3 Kf5 35. Nf3 Kg4 36. Ng1 g5 37. fxg5 Kxg5 38. h3 Kf5 39. Nf3 e5 40. Ke3 Ke6 41. g4 Kd5 42. Nd2 Nb5 43. Nc4 Nc3 44. a3 Nd1+ 45. Ke2 Nc3+ 46. Ke3 Nd1+ 47. Ke2 Nc3+ 48. Kd3 Nd1 49. Ne3+ 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2011.07.19"]
[Round "1"]
[White "Gruenhagen, Marc"]
[Black "Deepan Chakkravarthy, J."]
[Result "0-1"]
[ECO "E81"]
[WhiteElo "2133"]
[BlackElo "2470"]
[PlyCount "60"]
[EventDate "2011.07.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Nge2 d6 6. f3 c5 7. Be3 cxd4 8. Nxd4 Nc6 9. Nc2 e6 10. Qd2 Qe7 11. Be2 Rd8 12. 0-0 b6 13. Rfd1 Bb7 14. Rac1 Rac8 15. Bg5 Qf8 16. Ne3 Rd7 17. Qe1 Nh5 18. Nc2 h6 19. Be3 g5 20. c5 bxc5 21. Bxc5 Nf4 22. Bb5 a6 23. Ba4 Ne5 24. Be3 Rdc7 25. Bxf4 gxf4 26. Bb3 Nc4 27. Bxc4 Rxc4 28. Na3 R4c7 29. Qd2 d5 30. exd5 Bxc3 0-1

[Event "Bad Woerishofen op 27th"]
[Site "Bad Woerishofen"]
[Date "2011.03.27"]
[Round "5"]
[White "Schulze, Ulrich"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "2335"]
[BlackElo "2128"]
[PlyCount "61"]
[EventDate "2011.03.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c6 3. c4 Nf6 4. Nc3 a6 5. c5 Nbd7 6. Bf4 Nh5 7. Bd2 Nhf6 8. Rc1 g6 9. h3 Bg7 10. Bf4 0-0 11. e3 Re8 12. Be2 b6 13. cxb6 Qxb6 14. b3 c5 15. 0-0 cxd4 16. Na4 Qb4 17. exd4 Nh5 18. Qd2 Qxd2 19. Bxd2 Rb8 20. Rc6 Bb7 21. Rc7 Nhf6 22. Rfc1 Bf8 23. Bf4 e6 24. Nc5 Nxc5 25. dxc5 d4 26. c6 Bc8 27. Rxf7 Kxf7 28. Bxb8 Rd8 29. Bc7 Rd5 30. Bc4 Rc5 31. Bb6 1-0

[Event "Staufer op 23rd"]
[Site "Leinzell"]
[Date "2011.01.05"]
[Round "8"]
[White "Gruenhagen, Marc"]
[Black "Heimrath, Reiner"]
[Result "0-1"]
[ECO "A42"]
[WhiteElo "2128"]
[BlackElo "2241"]
[PlyCount "86"]
[EventDate "2011.01.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 140 Extra"]
[Source "ChessBase"]
[SourceDate "2011.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2011.03.01"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 Nd7 5. Nge2 a6 6. f3 e5 7. d5 Bh6 8. Bxh6 Qh4+ 9. g3 Qxh6 10. Qd2 Qxd2+ 11. Kxd2 Ne7 12. h4 h5 13. Bh3 Nb6 14. Bxc8 Rxc8 15. b3 a5 16. g4 Nd7 17. g5 0-0 18. Raf1 c6 19. f4 exf4 20. Nxf4 Ne5 21. Nd3 Ng4 22. Rh3 Rcd8 23. Nd1 b5 24. Ne3 bxc4 25. bxc4 cxd5 26. cxd5 f5 27. gxf6 Rxf6 28. Rhf3 Rxf3 29. Rxf3 Nxe3 30. Kxe3 Rb8 31. Rf2 Rb1 32. Rb2 Rh1 33. Rb7 Kf8 34. Rb6 Rh3+ 35. Kd2 Rxh4 36. Rxd6 Rxe4 37. Rd8+ Kf7 38. d6 Nf5 39. Kc3 Re8 40. Rd7+ Kf6 41. Nc5 Rc8 42. Kc4 Ke5 43. Kb5 Nd4+ 0-1

[Event "Staufer op 23rd"]
[Site "Leinzell"]
[Date "2011.01.04"]
[Round "5"]
[White "Kersten, Uwe"]
[Black "Gruenhagen, Marc"]
[Result "1/2-1/2"]
[ECO "B43"]
[WhiteElo "2325"]
[BlackElo "2128"]
[PlyCount "39"]
[EventDate "2011.01.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 140 Extra"]
[Source "ChessBase"]
[SourceDate "2011.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2011.03.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. d4 cxd4 5. Nxd4 b5 6. Bd3 Qb6 7. Nf3 Nc6 8. 0-0 Qb8 9. Bd2 Bd6 10. a4 b4 11. Na2 Nge7 12. c3 bxc3 13. Bxc3 0-0 14. b4 Ng6 15. Rb1 Nce5 16. Nxe5 Nxe5 17. Bc2 Ng6 18. g3 Bb7 19. f4 Qc7 20. Qd2 1/2-1/2

[Event "Staufer op 23rd"]
[Site "Leinzell"]
[Date "2011.01.03"]
[Round "4"]
[White "Gruenhagen, Marc"]
[Black "Namyslo, Holger"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2128"]
[BlackElo "2240"]
[PlyCount "95"]
[EventDate "2011.01.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 140 Extra"]
[Source "ChessBase"]
[SourceDate "2011.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2011.03.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. cxd5 exd5 5. Bf4 Nf6 6. Qc2 Be7 7. e3 0-0 8. Bd3 Re8 9. Nge2 Nbd7 10. h3 Nf8 11. g4 Ng6 12. Bg3 Bd6 13. 0-0-0 Qe7 14. Kb1 Bd7 15. Bxd6 Qxd6 16. Ng3 Rac8 17. g5 Ne4 18. Ngxe4 dxe4 19. Nxe4 Qe7 20. Nc5 Rc7 21. Nxd7 Rxd7 22. h4 Nf8 23. Qc5 Qxc5 24. dxc5 Re5 25. b4 a5 26. a3 axb4 27. axb4 b6 28. cxb6 Rb7 29. Kb2 Rxb6 30. Kc3 g6 31. Rhe1 Re7 32. Bc4 Reb7 33. Rd4 Kg7 34. Be2 Ne6 35. Rc4 Nc7 36. Bf3 Nb5+ 37. Kd3 Nd6 38. Rxc6 Rxc6 39. Bxc6 Rxb4 40. e4 Rb3+ 41. Kd4 Kf8 42. Ke5 Nc4+ 43. Kd4 Nd2 44. Kc5 Rc3+ 45. Kd5 Rd3+ 46. Kc5 Rc3+ 47. Kd5 Rd3+ 48. Kc5 1/2-1/2

[Event "Staufer op 23rd"]
[Site "Leinzell"]
[Date "2011.01.02"]
[Round "3"]
[White "Schloetzer, Waldemar"]
[Black "Gruenhagen, Marc"]
[Result "1/2-1/2"]
[ECO "D11"]
[WhiteElo "2287"]
[BlackElo "2128"]
[PlyCount "93"]
[EventDate "2011.01.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 140 Extra"]
[Source "ChessBase"]
[SourceDate "2011.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2011.03.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 a6 5. Bd3 Bg4 6. Nbd2 Nbd7 7. 0-0 e6 8. Qc2 Be7 9. b3 Bh5 10. Bb2 Bg6 11. e4 dxe4 12. Nxe4 Nxe4 13. Bxe4 Bxe4 14. Qxe4 0-0 15. Rad1 Re8 16. Bc3 Qc7 17. Rfe1 Bf6 18. h4 Rad8 19. Rd3 c5 20. Ng5 Nf8 21. Red1 cxd4 22. Bxd4 Bxd4 23. Rxd4 Rxd4 24. Qxd4 f6 25. Ne4 Re7 26. Nd6 Qc6 27. h5 e5 28. Qa7 g6 29. h6 Rd7 30. Qb8 Qc7 31. Qxc7 Rxc7 32. Ne8 Rc6 33. Rd8 Kf7 34. Ng7 Ke7 35. Re8+ Kf7 36. Rd8 Ke7 37. Re8+ Kf7 38. Rb8 Rb6 39. Kf1 Nd7 40. Rd8 Ke7 41. Re8+ Kf7 42. Ke2 Rd6 43. Rc8 Ke7 44. Rc7 Rb6 45. Rc8 Rd6 46. Rc7 Rb6 47. Rc8 1/2-1/2

[Event "Moehnesee Cup 36th"]
[Site "Moehnesee"]
[Date "2010.08.29"]
[Round "6"]
[White "Effertz, Josef"]
[Black "Gruenhagen, Marc"]
[Result "0-1"]
[ECO "C10"]
[WhiteElo "2037"]
[BlackElo "2133"]
[PlyCount "82"]
[EventDate "2010.08.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bd7 5. Nf3 Bc6 6. Bd3 Bxe4 7. Bxe4 c6 8. 0-0 Nf6 9. Bg5 Nbd7 10. c3 Be7 11. Bc2 0-0 12. Qd3 Re8 13. Rfe1 Qc7 14. Bxf6 Nxf6 15. Ne5 Rad8 16. Qh3 c5 17. Ba4 Rf8 18. Rad1 cxd4 19. cxd4 Bd6 20. Kh1 Bxe5 21. dxe5 Rxd1 22. Bxd1 Nd5 23. Bb3 Nf4 24. Qe3 Ng6 25. g3 Rc8 26. h4 a6 27. h5 Ne7 28. h6 Nf5 29. Qe4 Nxh6 30. g4 Qc6 31. Kh2 Qxe4 32. Rxe4 Kf8 33. Kg3 Rc5 34. Kf3 Ng8 35. Bc4 b5 36. Bd3 Ne7 37. Ke3 Nd5+ 38. Kd4 Rc1 39. f4 Rd1 40. a3 Ke7 41. f5 h6 0-1

[Event "Moehnesee Cup 36th"]
[Site "Moehnesee"]
[Date "2010.08.29"]
[Round "7"]
[White "Gruenhagen, Marc"]
[Black "Messarius, Juergen"]
[Result "1/2-1/2"]
[ECO "E51"]
[WhiteElo "2133"]
[BlackElo "2279"]
[PlyCount "48"]
[EventDate "2010.08.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Nf3 0-0 6. Bd3 dxc4 7. Bxc4 b6 8. 0-0 Bb7 9. Qe2 Nbd7 10. Rd1 Qe7 11. a3 Bxc3 12. bxc3 Ne4 13. Bb2 Rae8 14. Nd2 Nxd2 15. Rxd2 e5 16. d5 e4 17. Bb5 a6 18. Bxd7 Qxd7 19. Rad1 b5 20. c4 c5 21. dxc6 Qxc6 22. cxb5 Qxb5 23. Qg4 g5 24. Bf6 Bc8 1/2-1/2

[Event "Moehnesee Cup 36th"]
[Site "Moehnesee"]
[Date "2010.08.28"]
[Round "4"]
[White "Dyballa, Gerhard"]
[Black "Gruenhagen, Marc"]
[Result "1/2-1/2"]
[ECO "D10"]
[WhiteElo "1992"]
[BlackElo "2133"]
[PlyCount "84"]
[EventDate "2010.08.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. c4 c6 2. Nc3 d5 3. cxd5 cxd5 4. d4 Nc6 5. Bf4 Nf6 6. e3 a6 7. Bd3 Bg4 8. f3 Bd7 9. Rc1 e6 10. Nge2 Be7 11. 0-0 Nh5 12. Bg3 Nxg3 13. Nxg3 0-0 14. Kh1 Rc8 15. Bb1 g6 16. e4 dxe4 17. fxe4 Bg5 18. Rc2 Qb6 19. Nce2 Nb4 20. Rxc8 Rxc8 21. d5 exd5 22. exd5 Bg4 23. a3 Rc1 24. Qd4 Qxd4 25. Nxd4 Rxf1+ 26. Nxf1 Nxd5 27. Be4 Be6 28. b3 b6 29. Nxe6 fxe6 30. Bd3 Nc7 31. Ng3 Kf7 32. Ne4 Be7 33. a4 Ke8 34. g3 a5 35. Kg2 Nd5 36. Kf3 h6 37. h4 Kf7 38. Bc4 Bb4 39. Bd3 Ne7 40. Bc4 Nf5 41. Nf2 Bd6 42. Ne4 Bb4 1/2-1/2

[Event "Moehnesee Cup 36th"]
[Site "Moehnesee"]
[Date "2010.08.28"]
[Round "5"]
[White "Gruenhagen, Marc"]
[Black "Ruehrmund, Daniel"]
[Result "1-0"]
[ECO "A61"]
[WhiteElo "2133"]
[BlackElo "1897"]
[PlyCount "81"]
[EventDate "2010.08.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Bf4 a6 8. a4 Bg7 9. h3 0-0 10. e3 Nh5 11. Bh2 f5 12. Be2 f4 13. exf4 Nxf4 14. 0-0 Qf6 15. Re1 Qf5 16. Bxf4 Qxf4 17. Qd2 Qxd2 18. Nxd2 Bf5 19. Nc4 Rd8 20. g4 Bc8 21. Kg2 Nd7 22. Nxd6 Nf6 23. Nxc8 Raxc8 24. Rad1 Ne8 25. Ne4 h6 26. d6 Bd4 27. Bc4+ Kf8 28. d7 Rxd7 29. Be6 Rdd8 30. Bxc8 Rxc8 31. b3 a5 32. f4 Rc6 33. Rc1 b6 34. Kf3 Nf6 35. Nxf6 Rxf6 36. Re4 Rd6 37. Rce1 Kf7 38. Re7+ Kf8 39. Re8+ Kf7 40. R8e7+ Kf8 41. R7e6 1-0

[Event "Moehnesee Cup 36th"]
[Site "Moehnesee"]
[Date "2010.08.27"]
[Round "3"]
[White "Gruenhagen, Marc"]
[Black "Klatt, Peter"]
[Result "1/2-1/2"]
[ECO "E42"]
[WhiteElo "2133"]
[BlackElo "1995"]
[PlyCount "69"]
[EventDate "2010.08.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nge2 Nc6 6. d5 Ne5 7. a3 Ba5 8. Ng3 0-0 9. Bd2 d6 10. Be2 a6 11. 0-0 exd5 12. Nxd5 Nxd5 13. cxd5 Bxd2 14. Qxd2 b5 15. b4 c4 16. a4 Bd7 17. axb5 axb5 18. Qd4 Qc7 19. Ne4 Bf5 20. Nc3 Qb7 21. e4 Bd7 22. f4 Ng6 23. g3 Ra6 24. Rxa6 Qxa6 25. e5 Bh3 26. Re1 Re8 27. Bh5 Qa3 28. Bxg6 hxg6 29. Rb1 Bf5 30. Nxb5 Qf3 31. Rf1 Qe2 32. Rf2 Qe1+ 33. Rf1 Qe2 34. Rf2 Qe1+ 35. Rf1 1/2-1/2

[Event "Moehnesee Cup 36th"]
[Site "Moehnesee"]
[Date "2010.08.27"]
[Round "2"]
[White "Liethen, Alexander"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "B43"]
[WhiteElo "1981"]
[BlackElo "2133"]
[PlyCount "59"]
[EventDate "2010.08.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Nb3 Qc7 8. 0-0 Bb7 9. f4 b4 10. Ne2 Nf6 11. Ng3 d6 12. Qe2 Nc6 13. Be3 h5 14. c3 bxc3 15. Rac1 cxb2 16. Qxb2 Qd7 17. Rfd1 h4 18. Nf1 Be7 19. e5 Nd5 20. exd6 Bf6 21. Qa3 0-0 22. Be4 Rfc8 23. Bf2 Rab8 24. Ne3 Nxf4 25. Nc5 Qd8 26. d7 Rc7 27. Nxb7 Rbxb7 28. Rxc6 Rxd7 29. Rcd6 Bb2 30. Rxd7 1-0

[Event "Moehnesee Cup 36th"]
[Site "Moehnesee"]
[Date "2010.08.26"]
[Round "1"]
[White "Gruenhagen, Marc"]
[Black "Kimmich, Bernd"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "2133"]
[BlackElo "1930"]
[PlyCount "120"]
[EventDate "2010.08.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Bf4 e6 5. Nc3 Bd6 6. Bg3 Bxg3 7. hxg3 Qb6 8. Qd2 Nc6 9. e3 Bd7 10. Nf3 Nf6 11. Rc1 Rc8 12. Bd3 Qb4 13. a3 Qe7 14. b4 e5 15. dxe5 Nxe5 16. Nxe5 Qxe5 17. Bb5 0-0 18. Bxd7 Nxd7 19. 0-0 Nf6 20. Rfd1 Rcd8 21. Qd4 Qxd4 22. Rxd4 Rd7 23. Rcd1 Rfd8 24. f3 Kf8 25. Kf2 Ke7 26. g4 g5 27. Kg3 h5 28. gxh5 Nxh5+ 29. Kg4 Nf6+ 30. Kf5 Rd6 31. R1d2 a6 32. e4 Nh5 33. Nxd5+ Kf8 34. e5 Ng7+ 35. Ke4 f5+ 36. Ke3 Re6 37. f4 gxf4+ 38. Kxf4 Rg6 39. Nc7 Rg4+ 40. Ke3 Rg3+ 41. Ke2 Rxd4 42. Rxd4 Rxa3 43. e6 Ra2+ 44. Kf3 Nh5 45. Rd8+ Ke7 46. Rd7+ Kf6 47. e7 Ra3+ 48. Ke2 Ra2+ 49. Kd3 Ng7 50. e8Q Nxe8 51. Nxe8+ Ke5 52. Re7+ Kd5 53. Rxb7 Ra3+ 54. Ke2 Kc6 55. Rf7 Rb3 56. Rxf5 Rxb4 57. Nf6 Ra4 58. Kf3 Ra2 59. g4 Kd6 60. Ne4+ Ke7 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2010.08.02"]
[Round "6"]
[White "Sprangers, Remco"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "B43"]
[WhiteElo "2260"]
[BlackElo "2133"]
[PlyCount "47"]
[EventDate "2010.07.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Nf3 Nc6 8. 0-0 Qb8 9. Ng5 Nf6 10. f4 Bc5+ 11. Kh1 d6 12. Qf3 Bb7 13. Qg3 h5 14. Nxe6 fxe6 15. Qxg7 Rf8 16. e5 Nd7 17. Ne4 Ne7 18. f5 Rg8 19. Qh7 exf5 20. Bg5 Rxg5 21. Nxg5 Nxe5 22. Bxf5 Nxf5 23. Rxf5 Bd5 24. Raf1 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2010.07.28"]
[Round "2"]
[White "Huhndorf, Arnold"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2311"]
[BlackElo "2133"]
[PlyCount "83"]
[EventDate "2010.07.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 a6 5. Bd3 Bg4 6. Nbd2 e6 7. Qc2 Be7 8. Ne5 Bh5 9. 0-0 Bg6 10. Nxg6 hxg6 11. b3 Nbd7 12. Bb2 Qc7 13. Nf3 0-0 14. h3 Rac8 15. c5 a5 16. a3 Rfe8 17. b4 Nh7 18. h4 Nhf8 19. Bc3 axb4 20. axb4 Ra8 21. Ra2 Rxa2 22. Qxa2 Bf6 23. Qa7 e5 24. Ba6 e4 25. Qxb7 Qxb7 26. Bxb7 exf3 27. Bxc6 fxg2 28. Ra1 Rd8 29. Ra8 Rxa8 30. Bxa8 Ne6 31. Bxd5 Nexc5 32. bxc5 Nxc5 33. Kxg2 Nd7 34. Kg3 Be7 35. e4 Nf6 36. Bc6 Nh5+ 37. Kg4 Nf6+ 38. Kf3 Nh5 39. e5 Bxh4 40. Ba5 f6 41. e6 f5 42. d5 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2010.07.27"]
[Round "1"]
[White "Gruenhagen, Marc"]
[Black "Pedersen, Nicolai Vesterbaek"]
[Result "1/2-1/2"]
[ECO "A58"]
[WhiteElo "2133"]
[BlackElo "2461"]
[PlyCount "56"]
[EventDate "2010.07.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. g3 d6 8. Bg2 Bg7 9. Rb1 Nfd7 10. Bd2 Nb6 11. b3 0-0 12. Nh3 Bb7 13. a4 c4 14. 0-0 N8d7 15. b4 Bxc3 16. Bxc3 Nxa4 17. Bd4 Nf6 18. e4 e5 19. dxe6 fxe6 20. e5 Bxg2 21. Kxg2 dxe5 22. Bxe5 Ne4 23. Qxd8 Rfxd8 24. Rfd1 Nd2 25. Ra1 Rd5 26. Nf4 Rxe5 27. Rxd2 g5 28. Re2 Rb5 1/2-1/2

[Event "GER OS-136 email"]
[Site "GER email"]
[Date "2010.07.18"]
[Round "?"]
[White "Gruenhagen, Marc"]
[Black "Giesemann, Steffen"]
[Result "0-1"]
[ECO "D40"]
[WhiteElo "1552"]
[PlyCount "82"]
[EventDate "2010.07.25"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. e3 Nf6 5. Nf3 Nc6 6. a3 a6 7. dxc5 Bxc5 8. b4 Bd6 9. cxd5 exd5 10. Bb2 0-0 11. Be2 Be6 12. 0-0 Rc8 13. Rc1 b5 14. Qd2 Qd7 15. Rfd1 Rfd8 16. Nd4 Ne5 17. a4 Bxb4 18. axb5 Ne4 19. Qe1 axb5 20. Bxb5 Qc7 21. Nxe6 fxe6 22. Nxe4 Qxc1 23. Rxc1 Bxe1 24. Rxc8 Rxc8 25. Nd6 Bxf2+ 26. Kf1 Rf8 27. Bxe5 Bg3+ 28. Bf4 Bxf4 29. exf4 Rxf4+ 30. Ke2 Kf8 31. Bc6 Ke7 32. Nc8+ Kd8 33. Na7 Kc7 34. Be8 Kb6 35. Nb5 Rf8 36. Nd6 Kc5 37. Nb7+ Kd4 38. Bh5 Rb8 39. Nd6 Ke5 40. Nf7+ Kf6 41. Nd6 Ke7 0-1

[Event "GER OS-136 email"]
[Site "GER email"]
[Date "2010.07.18"]
[Round "?"]
[White "Gruenhagen, Marc"]
[Black "Mair, Egon"]
[Result "0-1"]
[ECO "D08"]
[WhiteElo "1552"]
[BlackElo "1719"]
[PlyCount "108"]
[EventDate "2010.07.25"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. d4 d5 2. c4 e5 3. dxe5 d4 4. e4 Nc6 5. f4 Nge7 6. Nf3 Ng6 7. Bd2 Be7 8. Qb3 0-0 9. Na3 Bg4 10. Be2 d3 11. Qxd3 Qxd3 12. Bxd3 Bb4 13. Bxb4 Nxb4 14. Bc2 Nxf4 15. 0-0 Rad8 16. Bb3 c6 17. c5 Ne6 18. Bxe6 Bxe6 19. Ng5 Bxa2 20. Nc2 Nxc2 21. Rxa2 a6 22. b3 Nd4 23. Ra3 Rde8 24. Rd1 Nb5 25. Raa1 Rxe5 26. Nf3 Rxe4 27. Rd7 Rb8 28. Ng5 Re5 29. Nxf7 Rxc5 30. Re1 Rd5 31. Ree7 Rxd7 32. Rxd7 Nc3 33. Nd8 Ne2+ 34. Kf2 Nc1 35. b4 Na2 36. Nxb7 Nxb4 37. Nc5 Ra8 38. Ke3 a5 39. Na4 Re8+ 40. Kf3 Rf8+ 41. Ke2 Rf5 42. Rc7 h5 43. g3 Rf7 44. Rc8+ Kh7 45. Nb2 Ra7 46. Na4 Kg6 47. h3 Kf5 48. Rh8 g6 49. Re8 Kf6 50. Rc8 Re7+ 51. Kf3 Re5 52. g4 Kg5 53. gxh5 gxh5 54. Rg8+ Kh4 0-1

[Event "GER OS-136 email"]
[Site "GER email"]
[Date "2010.07.18"]
[Round "?"]
[White "Gruenhagen, Marc"]
[Black "Wiese, Uwe"]
[Result "0-1"]
[ECO "A80"]
[WhiteElo "1552"]
[BlackElo "1813"]
[PlyCount "42"]
[EventDate "2010.07.25"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. d4 f5 2. Bg5 h6 3. Bh4 g5 4. e3 Nf6 5. Bg3 d6 6. h4 g4 7. h5 Ne4 8. Ne2 Nxg3 9. Nxg3 Bg7 10. Bd3 e6 11. Nd2 Nd7 12. Qe2 Nb6 13. 0-0-0 Qg5 14. f4 gxf3 15. gxf3 Bd7 16. Rdg1 Qf6 17. c3 0-0-0 18. Qg2 Rdg8 19. Ne2 Qf7 20. Qg6 Qf8 21. Nf4 Bf6 0-1

[Event "GER OS-136 email"]
[Site "GER email"]
[Date "2010.07.18"]
[Round "?"]
[White "Maeuer, Karl Heinz"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "C68"]
[BlackElo "1552"]
[PlyCount "75"]
[EventDate "2010.07.25"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Qf6 6. d4 exd4 7. Bg5 Qd6 8. Nxd4 Be7 9. Bxe7 Nxe7 10. Nc3 Bd7 11. Nb3 Qxd1 12. Rfxd1 b6 13. a4 0-0-0 14. a5 Kb7 15. f3 c5 16. axb6 cxb6 17. Nd2 Be6 18. Nf1 Nc6 19. Ne3 Nd4 20. Ncd5 Bxd5 21. exd5 Rhe8 22. Re1 Re5 23. Kf2 Rde8 24. Rad1 Kc7 25. h3 Kd7 26. g3 f5 27. c3 Nb5 28. f4 Re4 29. Nxf5 Rxe1 30. Rxe1 Rxe1 31. Kxe1 g6 32. Ne3 Nc7 33. Ke2 b5 34. Kd3 Kd6 35. g4 a5 36. c4 a4 37. cxb5 Nxb5 38. Ke4 1-0

[Event "GER OS-136 email"]
[Site "GER email"]
[Date "2010.07.18"]
[Round "?"]
[White "Thomae, Eberhard"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "B43"]
[WhiteElo "1839"]
[BlackElo "1552"]
[PlyCount "66"]
[EventDate "2010.07.25"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Nf3 Nc6 8. 0-0 Qb8 9. e5 Nxe5 10. Nxe5 Qxe5 11. Qf3 Qb8 12. Be4 Ra7 13. Be3 Rc7 14. Bf4 d6 15. Rad1 b4 16. Ne2 e5 17. Bc6+ Bd7 18. Bxd7+ Rxd7 19. Bxe5 dxe5 20. Rxd7 Kxd7 21. Rd1+ Bd6 22. Qxf7+ Ne7 23. Ng3 Qg8 24. Qf3 Kc7 25. Ne4 Nc8 26. Qd3 Qe6 27. Qxa6 Rd8 28. g3 Qe8 29. Qa5+ Kb7 30. Nc5+ Kc6 31. c4 bxc3 32. Qa6+ Nb6 33. Nb7 Rd7 1-0

[Event "GER OS-136 email"]
[Site "GER email"]
[Date "2010.07.18"]
[Round "?"]
[White "Wilmes, Frank"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "1780"]
[BlackElo "1552"]
[PlyCount "63"]
[EventDate "2010.07.25"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. b4 e5 2. Bb2 e4 3. e3 Nf6 4. b5 d5 5. c4 c6 6. Bxf6 Qxf6 7. Nc3 Bb4 8. Nge2 Be6 9. bxc6 bxc6 10. cxd5 Bxc3 11. Nxc3 cxd5 12. Bb5+ Nd7 13. Qa4 Qg6 14. 0-0 Rd8 15. Qa3 Bh3 16. g3 Qe6 17. Rfc1 Qe7 18. Qxe7+ Kxe7 19. Nxd5+ Kd6 20. Nf4 Bf5 21. Rc6+ Ke5 22. Rac1 g5 23. d3 exd3 24. Nxd3+ Bxd3 25. Bxd3 g4 26. R1c4 h5 27. Rf4 Kd5 28. Bb5 Nb6 29. Rf5+ Ke4 30. Rcf6 Nd7 31. Bc6+ Kd3 32. Rd6+ 1-0

[Event "Bad Woerishofen op 26th"]
[Site "Bad Woerishofen"]
[Date "2010.03.10"]
[Round "5"]
[White "Walter, Mario E"]
[Black "Gruenhagen, Marc"]
[Result "0-1"]
[ECO "A03"]
[WhiteElo "2006"]
[BlackElo "2131"]
[PlyCount "40"]
[EventDate "2010.03.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 135 Extra"]
[Source "ChessBase"]
[SourceDate "2010.05.04"]
[SourceVersion "1"]
[SourceVersionDate "2010.05.04"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. b3 Be7 7. Bb2 Ne4 8. Be2 Bh4+ 9. g3 Nxg3 10. Rg1 Nf5+ 11. Kd1 Bf6 12. c3 Nd7 13. d3 c6 14. Nd2 Qb6 15. d4 c5 16. Bd3 cxd4 17. Bxf5 dxc3 18. Bd3 cxb2 19. Rb1 Nc5 20. Be2 0-0-0 0-1

[Event "Bad Woerishofen op 26th"]
[Site "Bad Woerishofen"]
[Date "2010.03.09"]
[Round "4"]
[White "Gruenhagen, Marc"]
[Black "Friedrich, Norbert"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "2131"]
[BlackElo "2299"]
[PlyCount "50"]
[EventDate "2010.03.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 135 Extra"]
[Source "ChessBase"]
[SourceDate "2010.05.04"]
[SourceVersion "1"]
[SourceVersionDate "2010.05.04"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nbd2 c5 6. Be2 Nc6 7. 0-0 cxd4 8. exd4 Be7 9. b3 dxc4 10. Nxc4 0-0 11. Bb2 b6 12. Nfe5 Bb7 13. Bf3 Rc8 14. Rc1 Nd5 15. Be4 b5 16. Nd2 Nxe5 17. dxe5 Qa5 18. Rxc8 Rxc8 19. Bb1 Nc3 20. Bxc3 Qxc3 21. Qe2 a6 22. Rd1 Rd8 23. h3 g6 24. f4 Rd4 25. Kh1 Bb4 0-1

[Event "Bad Woerishofen op 26th"]
[Site "Bad Woerishofen"]
[Date "2010.03.07"]
[Round "2"]
[White "Gruenhagen, Marc"]
[Black "Espig, Lutz"]
[Result "0-1"]
[ECO "A53"]
[WhiteElo "2131"]
[BlackElo "2380"]
[PlyCount "86"]
[EventDate "2010.03.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 135 Extra"]
[Source "ChessBase"]
[SourceDate "2010.05.04"]
[SourceVersion "1"]
[SourceVersionDate "2010.05.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. e4 e5 5. d5 Be7 6. Be3 0-0 7. f3 Ne8 8. Qd2 h6 9. g3 Bg5 10. Bxg5 Qxg5 11. Qxg5 hxg5 12. Nh3 f6 13. Rb1 a5 14. b3 Nc5 15. a3 g4 16. fxg4 Bxg4 17. Bg2 a4 18. b4 Nb3 19. Nf2 Bd7 20. Bh3 Bxh3 21. Nxh3 f5 22. Rf1 fxe4 23. Rxf8+ Kxf8 24. Nxe4 Nf6 25. Nhg5 Ke7 26. Nc3 Nd4 27. Rb2 Ng4 28. Nd1 Rf8 29. h3 Nh6 30. g4 Nf3+ 31. Nxf3 Rxf3 32. Nf2 Rxa3 33. Ke2 Rc3 34. c5 a3 35. Ra2 dxc5 36. bxc5 Rxc5 37. Rxa3 Rxd5 38. Ra7 Rb5 39. Ne4 Nf7 40. h4 Nd6 41. Nxd6 cxd6 42. Kf3 Rb3+ 43. Ke4 Ke6 0-1

[Event "Budapest FS09 IM-A"]
[Site "Budapest"]
[Date "2009.09.17"]
[Round "13"]
[White "Feher, Adam"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "B84"]
[WhiteElo "2224"]
[BlackElo "2113"]
[PlyCount "59"]
[EventDate "2009.09.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 d6 6. Be2 Nf6 7. a4 b6 8. f4 Nbd7 9. 0-0 Bb7 10. Bf3 Be7 11. e5 Bxf3 12. Nxf3 dxe5 13. fxe5 Ng4 14. Qe2 Ndxe5 15. Nxe5 Qd4+ 16. Kh1 Nxe5 17. Rd1 Qc5 18. Be3 Qc6 19. Bd4 Ng6 20. Qe4 Qxe4 21. Nxe4 0-0 22. Bxb6 Rfc8 23. c3 Rab8 24. a5 Ne5 25. b4 Rc4 26. Nc5 Rxc3 27. Nxa6 Ra8 28. Bd4 Rc4 29. Bxe5 f6 30. Bd6 1-0

[Event "Budapest FS09 IM-A"]
[Site "Budapest"]
[Date "2009.09.16"]
[Round "12"]
[White "Gruenhagen, Marc"]
[Black "Dencsi, Tibor"]
[Result "1/2-1/2"]
[ECO "A42"]
[WhiteElo "2113"]
[BlackElo "2338"]
[PlyCount "58"]
[EventDate "2009.09.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. d4 d6 2. e4 g6 3. c4 Bg7 4. Nc3 Nd7 5. Nge2 e5 6. d5 a5 7. g4 Nc5 8. Ng3 Bh6 9. Be2 Bd7 10. Bxh6 Nxh6 11. h4 Ng8 12. Qd2 Qf6 13. Nb5 Bxb5 14. cxb5 Qf4 15. Rh3 Nf6 16. f3 h5 17. g5 Nfd7 18. Nh1 f6 19. Qxf4 exf4 20. gxf6 Kf7 21. Nf2 Kxf6 22. Kd2 Ne5 23. Rh2 Kg7 24. Rg2 Rhf8 25. Rc1 Kh6 26. b3 Rf7 27. Kc3 Rg8 28. Rcg1 Rf6 29. Kd4 Ra8 1/2-1/2

[Event "Budapest FS09 IM-A"]
[Site "Budapest"]
[Date "2009.09.15"]
[Round "11"]
[White "Turzo, Attila"]
[Black "Gruenhagen, Marc"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "2314"]
[BlackElo "2113"]
[PlyCount "46"]
[EventDate "2009.09.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 6. Nb3 Ba7 7. Nc3 Nc6 8. Qe2 d6 9. Be3 Nge7 10. 0-0-0 b5 11. Bxb5 axb5 12. Nxb5 Ba6 13. Bxa7 Rxa7 14. a4 0-0 15. Qe3 Rd7 16. N3d4 Nxd4 17. Nxd4 Qa5 18. b3 Rc8 19. Qd2 Qc5 20. Kb2 e5 21. Nf3 Nc6 22. Rc1 Na5 23. Ra1 Rb7 0-1

[Event "Budapest FS09 IM-A"]
[Site "Budapest"]
[Date "2009.09.14"]
[Round "10"]
[White "Gruenhagen, Marc"]
[Black "Nguyen Thi Mai, Hung"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "2113"]
[BlackElo "2213"]
[PlyCount "60"]
[EventDate "2009.09.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. a4 Bb4 6. e4 Nf6 7. Qc2 b5 8. Bd2 0-0 9. Be2 Bb7 10. e5 Nd5 11. Ng5 g6 12. h4 Be7 13. Nxd5 exd5 14. Nxh7 Kxh7 15. h5 Rh8 16. hxg6+ Kg7 17. Bh5 f6 18. 0-0-0 Bc8 19. exf6+ Bxf6 20. Bf3 bxa4 21. Rh7+ Rxh7 22. gxh7 Be6 23. Bh5 Nd7 24. Qg6+ Kh8 25. Bh6 Nf8 26. Bxf8 Qxf8 27. Re1 Bd7 28. f4 Bxd4 29. Qg5 Bf6 30. Qg6 a3 0-1

[Event "Budapest FS09 IM-A"]
[Site "Budapest"]
[Date "2009.09.13"]
[Round "9"]
[White "Stoenescu, Radu"]
[Black "Gruenhagen, Marc"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "2175"]
[BlackElo "2113"]
[PlyCount "106"]
[EventDate "2009.09.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 6. Nb3 Be7 7. c4 Nc6 8. Nc3 d6 9. Be3 Nf6 10. Rc1 Bd7 11. 0-0 Ne5 12. Be2 h5 13. h3 Rc8 14. Nd2 Bc6 15. f4 Ned7 16. b4 b6 17. b5 axb5 18. cxb5 Bb7 19. Nc4 d5 20. exd5 Nxd5 21. Nxd5 Bxd5 22. f5 0-0 23. fxe6 Bxe6 24. Bd3 Nc5 25. Bb1 Qxd1 26. Rfxd1 Bxc4 27. Rxc4 Rfd8 28. Rf1 g6 29. Rc2 Ra8 30. Rcf2 f5 31. g4 Ra3 32. Bc1 Rxh3 33. gxf5 gxf5 34. Rg2+ Kf7 35. Bxf5 Rc3 36. Bg6+ Ke6 37. Re2+ Kd7 38. Bf5+ Ke8 39. Bb2 Rg3+ 40. Kh2 h4 41. Bf6 Rd2 42. Rxd2 Bxf6 43. Re1+ Kf7 44. Rd6 Rg5 45. Rf1 Be5+ 46. Kh3 Bxd6 47. Kxh4 Rg7 48. a4 Ke7 49. Re1+ Kd8 50. Rd1 Kc7 51. Rd4 Be5 52. Rc4 Kd6 53. Bh3 Ra7 0-1

[Event "Budapest FS09 IM-A"]
[Site "Budapest"]
[Date "2009.09.12"]
[Round "8"]
[White "Gruenhagen, Marc"]
[Black "Lengyel, Bela"]
[Result "1-0"]
[ECO "D12"]
[WhiteElo "2113"]
[BlackElo "2251"]
[PlyCount "129"]
[EventDate "2009.09.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. Nc3 e6 6. Nh4 Be4 7. Qb3 Qc7 8. Bd2 Nbd7 9. Rc1 Rc8 10. cxd5 exd5 11. Be2 Qb6 12. Qxb6 Nxb6 13. f3 Bg6 14. Nxg6 hxg6 15. e4 Be7 16. e5 Nh5 17. Kf2 g5 18. g3 g6 19. Nd1 Ng7 20. b4 Ne6 21. Ke3 f5 22. exf6 Bxf6 23. Bc3 Kf7 24. Kd3 Nc4 25. Nf2 Rce8 26. Rce1 Nc7 27. Ng4 Nb5 28. Bd1 Nxc3 29. Kxc3 Rxe1 30. Rxe1 Nd6 31. Nxf6 Kxf6 32. Re2 Ra8 33. a4 a5 34. Bc2 axb4+ 35. Kxb4 b6 36. Bxg6 Rc8 37. Bc2 c5+ 38. dxc5 bxc5+ 39. Kc3 d4+ 40. Kd2 Nc4+ 41. Kc1 Rd8 42. Re4 Nd6 43. Re1 c4 44. Rd1 Nb7 45. Be4 Nc5 46. a5 Nb3+ 47. Kb2 Nxa5 48. Ka3 Nb3 49. Kb4 Rc8 50. Bd5 Nd2 51. Rxd2 c3 52. Rc2 Ke5 53. Be4 g4 54. Re2 gxf3 55. Bxf3+ Kd6 56. Be4 Re8 57. Kb3 Kc5 58. Kc2 Rf8 59. Kd3 Rf1 60. g4 Rd1+ 61. Kc2 Rg1 62. Rg2 Re1 63. Kd3 Rd1+ 64. Kc2 Re1 65. Bf5 1-0

[Event "Budapest FS09 IM-A"]
[Site "Budapest"]
[Date "2009.09.10"]
[Round "6"]
[White "Lyell, Mark"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2217"]
[BlackElo "2113"]
[PlyCount "91"]
[EventDate "2009.09.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Bc4 d6 5. Nge2 Nf6 6. d3 g6 7. Nxd4 cxd4 8. Ne2 e5 9. 0-0 Be6 10. Bxe6 fxe6 11. c3 dxc3 12. bxc3 Be7 13. Qb3 Qd7 14. Rb1 0-0 15. Qxb7 Rab8 16. Qxd7 Nxd7 17. Be3 Nc5 18. Bxc5 dxc5 19. Rb3 Rxb3 20. axb3 Rb8 21. Rb1 a5 22. c4 Rd8 23. Nc1 Bg5 24. Kf1 Rb8 25. Ke2 a4 26. Kd1 Bxc1 27. Kxc1 a3 28. Kc2 Kf7 29. Ra1 Ra8 30. Kc3 h6 31. b4 cxb4+ 32. Kxb4 a2 33. Kb3 Rd8 34. Rxa2 Rxd3+ 35. Kb4 Ke7 36. Kc5 Rc3 37. Rd2 Rc1 38. Kb5 Rb1+ 39. Kc6 Rc1 40. c5 g5 41. Kb6 Rb1+ 42. Kc7 Rc1 43. c6 h5 44. Rd7+ Ke8 45. Kd6 Rc2 46. c7 1-0

[Event "Budapest FS09 IM-A"]
[Site "Budapest"]
[Date "2009.09.09"]
[Round "5"]
[White "Gruenhagen, Marc"]
[Black "Erdei, Andras"]
[Result "0-1"]
[ECO "A88"]
[WhiteElo "2113"]
[BlackElo "2132"]
[PlyCount "74"]
[EventDate "2009.09.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. d4 f5 2. c4 g6 3. Nf3 Nf6 4. g3 Bg7 5. Bg2 0-0 6. 0-0 d6 7. Nc3 c6 8. b3 e5 9. dxe5 dxe5 10. Ba3 Qxd1 11. Raxd1 Re8 12. e3 Bf8 13. Bb2 Nbd7 14. e4 fxe4 15. Ng5 e3 16. fxe3 Bh6 17. h4 Ng4 18. Nce4 Bxg5 19. hxg5 Nxe3 20. Rxd7 Bxd7 21. Nf6+ Kg7 22. Nxd7 Nxf1 23. Bxf1 Rad8 24. Nxe5 Rd2 25. Bc3 Rc2 26. Bd4 Kg8 27. c5 Rd8 28. Nf3 Rxa2 29. Bc4+ Kf8 30. b4 Ra3 31. Bf6 Rxf3 32. Bxd8 Rxg3+ 33. Kf2 Rg4 34. Be6 Re4 35. Bc8 Re8 36. b5 Rxd8 37. Bxb7 Rd5 0-1

[Event "Budapest FS09 IM-A"]
[Site "Budapest"]
[Date "2009.09.08"]
[Round "4"]
[White "Lorand, Norbert"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "2339"]
[BlackElo "2113"]
[PlyCount "109"]
[EventDate "2009.09.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 6. Nb3 Ba7 7. Qg4 Nf6 8. Qg3 d6 9. Nc3 Nc6 10. Bg5 Ne5 11. f4 Nxd3+ 12. Qxd3 Qb6 13. 0-0-0 Bd7 14. Kb1 Ng4 15. Bh4 Rc8 16. Qg3 h5 17. h3 g5 18. hxg4 gxh4 19. Rxh4 Qf2 20. Qxf2 Bxf2 21. Rxh5 Rg8 22. g5 Ke7 23. Rf1 Ba7 24. Rh7 Rh8 25. Rfh1 Rxh7 26. Rxh7 Rg8 27. Nc1 Be3 28. N1e2 Bc6 29. Rh3 Bc5 30. a3 b5 31. b4 Bf2 32. Kc1 Bb6 33. Kd2 Ra8 34. Kd3 a5 35. Rh7 axb4 36. axb4 Rg8 37. g3 Bf2 38. Rh2 Bb6 39. Nd4 Bxd4 40. Kxd4 Rc8 41. Rh1 Bd7 42. Kd3 Rc4 43. Rh7 Ke8 44. f5 exf5 45. Nd5 fxe4+ 46. Ke3 Bf5 47. Rh8+ Kd7 48. Nb6+ Kc6 49. Nxc4 bxc4 50. c3 d5 51. Rh6+ Kd7 52. Kd4 Be6 53. g6 fxg6 54. Rxg6 Bh3 55. b5 1-0

[Event "Budapest FS09 IM-A"]
[Site "Budapest"]
[Date "2009.09.07"]
[Round "3"]
[White "Gruenhagen, Marc"]
[Black "Vegh, Endre"]
[Result "1/2-1/2"]
[ECO "A61"]
[WhiteElo "2113"]
[BlackElo "2296"]
[PlyCount "82"]
[EventDate "2009.09.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Bf4 a6 8. a4 Bg7 9. h3 0-0 10. e3 Nh5 11. Bh2 f5 12. Be2 f4 13. exf4 Nxf4 14. 0-0 Qb6 15. Qd2 Bh6 16. Kh1 Kg7 17. Ne4 Qb3 18. Ra3 Qb4 19. Qxb4 cxb4 20. Re3 Nxd5 21. Rd3 Nf4 22. Bxf4 Bxf4 23. Nxd6 Bxd6 24. Rxd6 Nc6 25. Nd4 Nxd4 26. Rxd4 a5 27. Kh2 Be6 28. Bf3 Rf7 29. Kg3 Rc8 30. Re1 Bb3 31. Bd1 Rc1 32. Bxb3 Rxe1 33. Bxf7 Kxf7 34. Rd7+ Re7 35. Rd5 b6 36. Kf3 Ke6 37. Rb5 Rb7 38. Ke4 Kd6 39. f4 Kc6 40. g4 Rd7 41. f5 gxf5+ 1/2-1/2

[Event "Budapest FS09 IM-A"]
[Site "Budapest"]
[Date "2009.09.06"]
[Round "2"]
[White "Moskovic, David M"]
[Black "Gruenhagen, Marc"]
[Result "1/2-1/2"]
[ECO "B43"]
[WhiteElo "2307"]
[BlackElo "2113"]
[PlyCount "70"]
[EventDate "2009.09.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. d4 cxd4 5. Nxd4 b5 6. Bd3 Qb6 7. Nf3 Nc6 8. 0-0 Qb8 9. a4 b4 10. Nb1 Bd6 11. Nbd2 Nge7 12. b3 Ne5 13. Bb2 N7g6 14. Nxe5 Nxe5 15. f4 Nxd3 16. cxd3 Bxf4 17. Qf3 Bxh2+ 18. Kh1 0-0 19. g3 Qxg3 20. Qxg3 Bxg3 21. Rg1 f6 22. Rxg3 d5 23. Rf1 e5 24. Rc1 Bb7 25. Kg1 Rac8 26. exd5 Bxd5 27. Nc4 h5 28. Kf2 g5 29. Ke3 h4 30. Rgg1 h3 31. Rc2 Bg2 32. a5 h2 33. Rcxg2 hxg1Q+ 34. Rxg1 Kh7 35. Ke4 Kg6 1/2-1/2

[Event "Budapest FS09 IM-A"]
[Site "Budapest"]
[Date "2009.09.05"]
[Round "1"]
[White "Gruenhagen, Marc"]
[Black "Farago, Sandor"]
[Result "0-1"]
[ECO "A56"]
[WhiteElo "2113"]
[BlackElo "2236"]
[PlyCount "74"]
[EventDate "2009.09.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 c5 4. d5 Bg7 5. Nf3 a6 6. a4 0-0 7. Bf4 d6 8. h3 Qa5 9. Qd2 b5 10. cxb5 axb5 11. Nxb5 Nxd5 12. Qxa5 Rxa5 13. Bd2 Nb4 14. Bxb4 cxb4 15. Nfd4 Bd7 16. e3 Rc8 17. Kd2 Nc6 18. b3 Nxd4 19. Nxd4 Rc3 20. Bb5 Bxd4 21. Bxd7 Bf6 22. Rab1 Rd5+ 23. Ke2 Rc2+ 24. Kf3 Rc7 25. Bb5 Rf5+ 26. Kg3 Rc3 27. f3 Rxe3 28. Rhe1 Be5+ 29. Kf2 Rc3 30. Re2 Bd4+ 31. Kf1 e6 32. Bc4 Rc5 33. Ke1 d5 34. Bb5 Be3 35. Kf1 e5 36. g3 h5 37. Rbe1 Bd4 0-1

[Event "Duesseldorf Nord Cup 9th GrC"]
[Site "Duesseldorf"]
[Date "2009.08.16"]
[Round "4.3"]
[White "Gruenhagen, Marc"]
[Black "Jentzsch, Daniel"]
[Result "0-1"]
[ECO "A87"]
[WhiteElo "2148"]
[BlackElo "1997"]
[PlyCount "126"]
[EventDate "2009.08.14"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. 0-0 0-0 6. c4 d6 7. Nc3 Qe8 8. Re1 Qf7 9. b3 Ne4 10. Bb2 Nd7 11. Qd3 Ndf6 12. Rad1 Nxc3 13. Bxc3 Ne4 14. Ba1 c6 15. Nd2 Nxd2 16. Qxd2 f4 17. e4 g5 18. f3 Qh5 19. e5 dxe5 20. g4 Bxg4 21. fxg4 Qxg4 22. h3 Qf5 23. Be4 Qxh3 24. Qh2 Qxh2+ 25. Kxh2 exd4 26. Bxd4 Rad8 27. Bxg7 Kxg7 28. Bf3 Kf6 29. Kg2 e5 30. Rh1 Rxd1 31. Rxd1 Kf5 32. Re1 Rd8 33. Be4+ Kg4 34. Bf3+ Kf5 35. Be4+ Kf6 36. Bxh7 g4 37. Rf1 c5 38. Be4 b6 39. Bd5 Rh8 40. Bc6 Kg5 41. Re1 f3+ 42. Bxf3 gxf3+ 43. Kxf3 Kf5 44. Rf1 e4+ 45. Ke3+ Ke5 46. Rf7 Rh3+ 47. Kd2 Rh2+ 48. Ke3 Rxa2 49. Re7+ Kf5 50. Rd7 Ra3 51. Rd5+ Ke6 52. Kxe4 Rxb3 53. Re5+ Kd6 54. Rh5 a5 55. Rh6+ Kc7 56. Rh7+ Kc6 57. Rh6+ Kb7 58. Rh7+ Ka6 59. Kd5 Rg3 60. Rh8 Rg6 61. Rf8 Rh6 62. Rg8 Rh7 63. Kc6 Rh6+ 0-1

[Event "Duesseldorf Nord Cup 9th GrC"]
[Site "Duesseldorf"]
[Date "2009.08.16"]
[Round "5.2"]
[White "Klueting, Reiner"]
[Black "Gruenhagen, Marc"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2082"]
[BlackElo "2148"]
[PlyCount "87"]
[EventDate "2009.08.14"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. c3 Nf6 5. e5 Nd5 6. Bc4 Nb6 7. Bb3 Nc6 8. 0-0 d6 9. cxd4 Bd7 10. Nc3 dxe5 11. dxe5 Na5 12. Bg5 Be7 13. Ne4 0-0 14. Bc2 Bb5 15. Bxe7 Qxe7 16. Nfg5 h6 17. Qh5 f5 18. Qg6 hxg5 19. Nxg5 Qxg5 20. Qxg5 Bxf1 21. Rxf1 Rac8 22. Bb3 Nxb3 23. axb3 Nd5 24. Qg6 Nf4 25. Qg5 Nd5 26. Rc1 Rxc1+ 27. Qxc1 Re8 28. h4 Re7 29. Qg5 Kf7 30. h5 Kf8 31. f3 a6 32. Qg6 Nf4 33. Qg5 Nd5 34. g4 fxg4 35. fxg4 Kg8 36. Qg6 Nf4 37. Qe4 Nd5 38. h6 gxh6 39. Qg6+ Kf8 40. Qxh6+ Kg8 41. g5 Nf4 42. Qf6 Rf7 43. Qd8+ Kg7 44. Kh2 1/2-1/2

[Event "Duesseldorf Nord Cup 9th GrC"]
[Site "Duesseldorf"]
[Date "2009.08.15"]
[Round "2.3"]
[White "Evers, Leo"]
[Black "Gruenhagen, Marc"]
[Result "1/2-1/2"]
[ECO "D11"]
[WhiteElo "2097"]
[BlackElo "2148"]
[PlyCount "25"]
[EventDate "2009.08.14"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nbd2 Bf5 5. Nh4 Bg6 6. Qb3 Qc8 7. e3 e6 8. Be2 Be7 9. 0-0 Nbd7 10. f4 Bh5 11. Bxh5 Nxh5 12. Nhf3 Nhf6 13. Ne5 1/2-1/2

[Event "Duesseldorf Nord Cup 9th GrC"]
[Site "Duesseldorf"]
[Date "2009.08.15"]
[Round "3.1"]
[White "Gruenhagen, Marc"]
[Black "Ritter, Uwe"]
[Result "1/2-1/2"]
[ECO "A61"]
[WhiteElo "2148"]
[BlackElo "1998"]
[PlyCount "71"]
[EventDate "2009.08.14"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Bf4 a6 8. a4 Bg7 9. h3 0-0 10. e3 Nh5 11. Bh2 f5 12. Nd2 f4 13. e4 Nd7 14. Be2 Qg5 15. Bf3 Ne5 16. Qe2 c4 17. Nxc4 Nxc4 18. Qxc4 Bd7 19. Qd3 Rac8 20. Ke2 b5 21. axb5 Bxc3 22. bxa6 Bxb2 23. Ra2 Rc3 24. Rxb2 Rxd3 25. Kxd3 Qe5 26. Rhb1 Rc8 27. a7 Qc3+ 28. Ke2 Qa5 29. Rb7 Qa6+ 30. Kd2 Qa5+ 31. Ke2 Rc2+ 32. Kf1 Qa6+ 33. Ke1 Qa5+ 34. Kf1 Qa6+ 35. Ke1 Qa5+ 36. Kf1 1/2-1/2

[Event "Duesseldorf Nord Cup 9th GrC"]
[Site "Duesseldorf"]
[Date "2009.08.14"]
[Round "1.2"]
[White "Gruenhagen, Marc"]
[Black "Heinert, Eugen"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "2148"]
[BlackElo "2122"]
[PlyCount "78"]
[EventDate "2009.08.14"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qb3 Qb6 5. Qxb6 axb6 6. cxd5 Nxd5 7. Bd2 Bf5 8. Na3 e6 9. Nc4 b5 10. Ne3 Nxe3 11. Bxe3 Na6 12. Rc1 Nb4 13. a3 Nc2+ 14. Kd2 Nxa3 15. bxa3 Bxa3 16. g4 Bxc1+ 17. Kxc1 Bxg4 18. Kb2 Bxf3 19. exf3 0-0 20. Bd3 Rfd8 21. Rd1 Ra4 22. Bc2 Raa8 23. Rd3 Rd5 24. Ra3 Rxa3 25. Kxa3 Rh5 26. Kb4 Rxh2 27. Kc5 h5 28. f4 f5 29. Kd6 h4 30. Kxe6 g6 31. Bb3 Rh1 32. d5 cxd5 33. Bxd5 Rg1 34. Bd4 h3 35. Ke7+ Kh7 36. Kf8 Rd1 37. Bg8+ Kh6 38. Bg7+ Kh5 39. Bb3 Rd3 0-1

[Event "GER OS-087 email"]
[Site "GER email"]
[Date "2008.10.26"]
[Round "?"]
[White "Borkenhagen, Winfried"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "B40"]
[PlyCount "49"]
[EventDate "2008.11.01"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. Be2 b5 5. 0-0 Bb7 6. d4 cxd4 7. Qxd4 Nc6 8. Qe3 d6 9. Nd4 Be7 10. Rd1 Qc7 11. a4 b4 12. Na2 Nf6 13. Nxc6 Qxc6 14. Rd4 Qb6 15. Rxb4 Qxe3 16. Bxe3 Bxe4 17. Rb6 0-0 18. Nc3 Bxc2 19. a5 Rab8 20. Bxa6 g6 21. Rxb8 Rxb8 22. Bb5 Be4 23. Nxe4 Rxb5 24. a6 Rb8 25. a7 1-0

[Event "GER OS-087 email"]
[Site "GER email"]
[Date "2008.10.26"]
[Round "?"]
[White "Buchmann, Hans Peter"]
[Black "Gruenhagen, Marc"]
[Result "1/2-1/2"]
[ECO "B43"]
[PlyCount "73"]
[EventDate "2008.11.01"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Nb3 Qc7 8. a3 Bb7 9. 0-0 d6 10. Nd4 Nd7 11. Bd2 Ngf6 12. Qe2 Be7 13. b4 0-0 14. a4 bxa4 15. Rxa4 Nb6 16. Ra5 d5 17. e5 Nfd7 18. f4 Bxb4 19. Na4 Bxa5 20. Bxa5 Rab8 21. f5 Qxe5 22. Qxe5 Nxe5 23. Nxb6 Nc6 24. Nxc6 Bxc6 25. Bxa6 d4 26. Bc4 e5 27. Bb3 Rfe8 28. Nc4 Bd5 29. Bc7 Bxc4 30. Bxc4 Rbc8 31. Bb5 Rf8 32. Bd6 Rfd8 33. Be7 Rd5 34. Bd3 f6 35. Bb4 Rd7 36. Bd2 Rdc7 37. Rc1 1/2-1/2

[Event "GER OS-087 email"]
[Site "GER email"]
[Date "2008.10.26"]
[Round "?"]
[White "Emrich, Eiko"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "107"]
[EventDate "2008.11.01"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 c6 3. Bg2 Nf6 4. 0-0 Bg4 5. d4 Nbd7 6. Nbd2 e6 7. Re1 Be7 8. e4 0-0 9. h3 Bh5 10. e5 Ne8 11. Nf1 c5 12. g4 Bg6 13. c3 Qb6 14. Qe2 Nc7 15. Be3 Qa6 16. Ng3 Qxe2 17. Nxe2 Be4 18. Bg5 Bxg5 19. Nxg5 Bxg2 20. Kxg2 h6 21. Nf3 b5 22. dxc5 Nxc5 23. Red1 a5 24. Nfd4 f6 25. exf6 Rxf6 26. f4 g6 27. h4 g5 28. hxg5 hxg5 29. fxg5 Rg6 30. Nf3 e5 31. Rh1 e4 32. Nfd4 Rxg5 33. Rh4 N7e6 34. Kg3 Nxd4 35. Nxd4 b4 36. Rah1 Ra6 37. Nf5 bxc3 38. bxc3 Kf8 39. Rh8+ Rg8 40. R8h7 e3 41. Rc7 Ne4+ 42. Kf4 Rxg4+ 43. Kxe3 Re6 44. Rh8+ Rg8 45. Rc8+ Kf7 46. Nh6+ Rxh6 47. Rcxg8 Rxh8 48. Rxh8 Nxc3 49. Rh2 Ke6 50. Kd4 Nb5+ 51. Kc5 Nc3 52. Rc2 Ne4+ 53. Kd4 Kd6 54. Rc8 1-0

[Event "GER OS-087 email"]
[Site "GER email"]
[Date "2008.10.26"]
[Round "?"]
[White "Gruenhagen, Marc"]
[Black "Kuhn, Christian Helmut"]
[Result "0-1"]
[ECO "A58"]
[PlyCount "102"]
[EventDate "2008.11.01"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. Nf3 d6 8. g3 Bg7 9. Rb1 Nbd7 10. Bg2 Nb6 11. b3 Bc8 12. Nh4 h6 13. Qc2 Qd7 14. Bb2 g5 15. Nf3 Bb7 16. Rd1 0-0 17. 0-0 Bxd5 18. Nxd5 Nbxd5 19. a3 Qe6 20. e4 Qxe4 21. Qxe4 Nxe4 22. Bxg7 Kxg7 23. Rxd5 Rxa3 24. Rd3 Rb8 25. Re1 Rb4 26. Kf1 e6 27. Ree3 Ra6 28. Nd2 Nf6 29. h3 d5 30. Re1 Ra2 31. Rc1 Nd7 32. Ke1 Ne5 33. Re3 Rd4 34. Rxe5 Rdxd2 35. Bf3 Rxf2 36. Re2 Rfxe2+ 37. Bxe2 Ra5 38. Kf2 f5 39. Rc3 Kf6 40. Bf3 Ke5 41. Re3+ Kd6 42. Bh5 Ra2+ 43. Re2 Rxe2+ 44. Kxe2 e5 45. Bg6 Ke6 46. Kd2 e4 47. Kc3 Ke5 48. b4 d4+ 49. Kc4 cxb4 50. Kxb4 e3 51. Bh5 g4 0-1

[Event "GER OS-087 email"]
[Site "GER email"]
[Date "2008.10.26"]
[Round "?"]
[White "Gruenhagen, Marc"]
[Black "Moeller, Christian"]
[Result "0-1"]
[ECO "D45"]
[PlyCount "88"]
[EventDate "2008.11.01"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nc3 Nbd7 6. Be2 Bd6 7. 0-0 0-0 8. a3 Ne4 9. Nxe4 dxe4 10. Nd2 f5 11. f4 exf3 12. Nxf3 Nf6 13. b4 a5 14. b5 c5 15. Bd3 b6 16. Qe2 Bb7 17. Bb2 Qc7 18. g3 Ng4 19. Rae1 Rad8 20. a4 h5 21. d5 exd5 22. cxd5 Bxd5 23. Bc4 Qf7 24. Bxd5 Qxd5 25. e4 fxe4 26. Qxe4 Qxe4 27. Rxe4 Rde8 28. Rxe8 Rxe8 29. Re1 Rxe1+ 30. Nxe1 Kf7 31. Nf3 g6 32. Kf1 Ke6 33. Ke2 Kd5 34. h3 Nh6 35. Bc1 Nf7 36. g4 hxg4 37. hxg4 Kc4 38. Nh4 Nh8 39. Nf3 Kb3 40. Kd3 Nf7 41. Ke4 c4 42. Kd5 c3 43. Ke6 Ba3 44. Bxa3 Ng5+ 0-1

[Event "GER OS-087 email"]
[Site "GER email"]
[Date "2008.10.26"]
[Round "?"]
[White "Gruenhagen, Marc"]
[Black "Mueller Toepler, Michael"]
[Result "1/2-1/2"]
[ECO "A65"]
[PlyCount "82"]
[EventDate "2008.11.01"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Nge2 d6 6. f3 c5 7. Be3 Nc6 8. d5 Ne5 9. Ng3 e6 10. Be2 exd5 11. cxd5 h5 12. Qd2 h4 13. Nf1 a6 14. Bh6 b5 15. Bxg7 Kxg7 16. Ne3 h3 17. Rg1 Re8 18. Ncd1 hxg2 19. Nf2 c4 20. 0-0-0 Ned7 21. Rxg2 Nc5 22. Rdg1 Qe7 23. Bd1 Rg8 24. Bc2 Re8 25. Nf5+ Bxf5 26. exf5 Qe3 27. fxg6 Qxd2+ 28. Kxd2 Re5 29. gxf7+ Kxf7 30. Rg7+ Kf8 31. Ne4 Ncxe4+ 32. fxe4 Rae8 33. Kc3 Nxe4+ 34. Bxe4 Rxe4 35. Rg8+ Ke7 36. R1g7+ Kd8 37. Rxe8+ Kxe8 38. Ra7 Re3+ 39. Kd4 Rd3+ 40. Ke4 Rh3 41. Rxa6 Rxh2 1/2-1/2

[Event "Niederrhein-ch"]
[Site "Niederrhein"]
[Date "2005.03.26"]
[Round "9"]
[White "Babaev, Mikhail"]
[Black "Gruenhagen, Marc"]
[Result "0-1"]
[ECO "D13"]
[WhiteElo "1742"]
[BlackElo "1993"]
[PlyCount "46"]
[EventDate "2005.03.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 105 Extra"]
[Source "ChessBase"]
[SourceDate "2005.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.05.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 a6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg4 8. Be2 Bxf3 9. Bxf3 e6 10. g4 Be7 11. h4 Rc8 12. g5 Nd7 13. Rc1 Qb6 14. Qd2 Na5 15. Rc2 Nc4 16. Qc1 Qa5 17. Kf1 0-0 18. Kg2 b5 19. Bxd5 exd5 20. Nxd5 Qd8 21. Nxe7+ Qxe7 22. b3 Nxe3+ 23. Qxe3 Qxe3 0-1

[Event "Niederrhein-ch"]
[Site "Niederrhein"]
[Date "2005.03.25"]
[Round "8"]
[White "Czybik, Nils Patrick"]
[Black "Gruenhagen, Marc"]
[Result "1/2-1/2"]
[ECO "B43"]
[WhiteElo "1780"]
[BlackElo "1993"]
[PlyCount "85"]
[EventDate "2005.03.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 105 Extra"]
[Source "ChessBase"]
[SourceDate "2005.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.05.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Be3 Bb7 7. f3 Qc7 8. Qd2 Nf6 9. Be2 b4 10. Na4 d5 11. e5 Nfd7 12. f4 Nc6 13. c3 Nxd4 14. cxd4 Qa5 15. b3 Be7 16. 0-0 Rc8 17. f5 0-0 18. f6 gxf6 19. Bh6 f5 20. Rf3 Kh8 21. Bxf8 Nxf8 22. Qh6 Qd8 23. g4 Bg5 24. Qh5 Ng6 25. Nc5 Rxc5 26. dxc5 d4 27. gxf5 Bxf3 28. Qxf3 Nxe5 29. Qe4 Be3+ 30. Kh1 Qc7 31. f6 h6 32. Qg2 Qc6 33. Qxc6 Nxc6 34. Bxa6 Ne5 35. Bb5 d3 36. c6 Bb6 37. a4 bxa3 38. Rxa3 d2 39. Ra1 Ng4 40. Be2 Nxf6 41. Kg2 Nd5 42. Kf3 Nb4 43. Bd1 1/2-1/2

[Event "Niederrhein-ch"]
[Site "Niederrhein"]
[Date "2005.03.24"]
[Round "7"]
[White "Gruenhagen, Marc"]
[Black "Scharrenbroich, Andreas"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "1993"]
[BlackElo "1836"]
[PlyCount "48"]
[EventDate "2005.03.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 105 Extra"]
[Source "ChessBase"]
[SourceDate "2005.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.05.01"]
[SourceQuality "1"]

1. d4 g6 2. c3 Bg7 3. e4 d5 4. Nd2 e6 5. Bd3 Nf6 6. e5 Nfd7 7. Ne2 c5 8. f4 Nc6 9. Nf3 Qb6 10. 0-0 0-0 11. Kh1 c4 12. Bc2 Qc7 13. h4 b5 14. h5 Ne7 15. hxg6 hxg6 16. Ng5 Bh6 17. Rf3 Bxg5 18. fxg5 Bb7 19. Qf1 Kg7 20. Nf4 Rh8+ 21. Kg1 Raf8 22. Nh3 Qb6 23. Be3 Nf5 24. Bxf5 gxf5 1/2-1/2

[Event "Niederrhein-ch"]
[Site "Niederrhein"]
[Date "2005.03.23"]
[Round "6"]
[White "Heinert, Eugen"]
[Black "Gruenhagen, Marc"]
[Result "1/2-1/2"]
[ECO "A10"]
[WhiteElo "1937"]
[BlackElo "1993"]
[PlyCount "56"]
[EventDate "2005.03.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 105 Extra"]
[Source "ChessBase"]
[SourceDate "2005.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.05.01"]
[SourceQuality "1"]

1. c4 f5 2. e4 fxe4 3. Nc3 Nf6 4. f3 e3 5. dxe3 e5 6. Bd3 Bc5 7. Qc2 d6 8. Nd5 Be6 9. b4 Nxd5 10. bxc5 Nb4 11. Qa4+ N8c6 12. Be4 d5 13. Rb1 a5 14. cxd5 Bxd5 15. Bxd5 Nd3+ 16. Ke2 Qxd5 17. Nh3 Nxc5 18. Qb5 Rd8 19. Nf2 Qxa2+ 20. Rb2 Na4 21. Qb3 Qxb3 22. Rxb3 b5 23. Bd2 b4 24. Rc1 Rd6 25. Ne4 Rg6 26. g4 Kd7 27. h4 h6 28. h5 Re6 1/2-1/2

[Event "Niederrhein-ch"]
[Site "Niederrhein"]
[Date "2005.03.22"]
[Round "5"]
[White "Gruenhagen, Marc"]
[Black "Feldhaus, Sebastian"]
[Result "0-1"]
[ECO "D53"]
[WhiteElo "1993"]
[BlackElo "1769"]
[PlyCount "76"]
[EventDate "2005.03.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 105 Extra"]
[Source "ChessBase"]
[SourceDate "2005.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.05.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 Nc6 4. Nc3 e6 5. Bg5 Be7 6. e3 0-0 7. Rc1 Ne4 8. Bxe7 Nxe7 9. Bd3 f5 10. 0-0 c6 11. Ne5 Qe8 12. f3 Nf6 13. Qc2 Ng6 14. Nxg6 Qxg6 15. e4 dxe4 16. fxe4 Ng4 17. Qd2 Qh6 18. Qxh6 Nxh6 19. Ne2 Bd7 20. h3 Rae8 21. e5 Re7 22. c5 Be8 23. g3 g6 24. Kf2 Bf7 25. Ke3 Rd8 26. a4 Red7 27. Bc4 Kf8 28. Rc3 Ke7 29. b4 g5 30. Rd3 Bh5 31. Nc3 f4+ 32. gxf4 Nf5+ 33. Kf2 Rxd4 34. Rxd4 Rxd4 35. Bb3 Rxb4 36. Bd1 Rxf4+ 37. Kg1 Rxf1+ 38. Kxf1 Ne3+ 0-1

[Event "Niederrhein-ch"]
[Site "Niederrhein"]
[Date "2005.03.21"]
[Round "4"]
[White "Dresen, Ulrich"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "2237"]
[BlackElo "1993"]
[PlyCount "77"]
[EventDate "2005.03.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 105 Extra"]
[Source "ChessBase"]
[SourceDate "2005.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.05.01"]
[SourceQuality "1"]

1. d4 f5 2. Bg5 g6 3. Nd2 Bg7 4. e4 fxe4 5. Nxe4 d5 6. Nc5 b6 7. Nb3 Nh6 8. Nf3 0-0 9. Be2 Nf7 10. Bh4 Bb7 11. 0-0 Qd6 12. Bg3 e5 13. dxe5 Nxe5 14. Nxe5 Bxe5 15. Bxe5 Qxe5 16. Bf3 c6 17. Nd4 Re8 18. Re1 Qxe1+ 19. Qxe1 Rxe1+ 20. Rxe1 Kf7 21. Ne6 Na6 22. Ng5+ Kg7 23. Re7+ Kf6 24. Rxb7 Kxg5 25. Rxh7 Nb4 26. h4+ Kf5 27. c3 Nd3 28. Bd1 Ne5 29. g3 Kf6 30. f4 Nf7 31. Bc2 Nd6 32. Rc7 c5 33. Rd7 Ne4 34. Kg2 Ke6 35. Rg7 Kf6 36. Rc7 Nd6 37. g4 Re8 38. g5+ Ke6 39. Bxg6 1-0

[Event "Niederrhein-ch"]
[Site "Niederrhein"]
[Date "2005.03.20"]
[Round "3"]
[White "Gruenhagen, Marc"]
[Black "Henk, Martin"]
[Result "1/2-1/2"]
[ECO "D91"]
[WhiteElo "1993"]
[BlackElo "2013"]
[PlyCount "64"]
[EventDate "2005.03.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 105 Extra"]
[Source "ChessBase"]
[SourceDate "2005.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.05.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bg5 Ne4 6. cxd5 Nxg5 7. Nxg5 e6 8. Nf3 exd5 9. e3 0-0 10. b4 Qd6 11. Qb3 Be6 12. Rc1 c6 13. Be2 Nd7 14. 0-0 a5 15. b5 Qb4 16. Na4 Qxb3 17. axb3 Rfc8 18. bxc6 bxc6 19. Rc3 Rab8 20. Rfc1 Nb6 21. Nc5 Bd7 22. Bd1 Be8 23. Ne1 Nd7 24. Ned3 Bf8 25. Ra1 Ra8 26. Kf1 Rc7 27. Bg4 Nxc5 28. Nxc5 Rca7 29. Bd1 Be7 30. Ke2 Bd8 31. Kd3 Bb6 32. h3 Kf8 1/2-1/2

[Event "Niederrhein-ch"]
[Site "Niederrhein"]
[Date "2005.03.19"]
[Round "2"]
[White "Trella, Thomas"]
[Black "Gruenhagen, Marc"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2144"]
[BlackElo "1993"]
[PlyCount "53"]
[EventDate "2005.03.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 105 Extra"]
[Source "ChessBase"]
[SourceDate "2005.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.05.01"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Bc4 d6 5. Nge2 Nf6 6. d3 e6 7. 0-0 Be7 8. Nxd4 cxd4 9. Ne2 Qb6 10. Bb3 Bd7 11. f4 Nxe4 12. dxe4 d3+ 13. Kh1 dxe2 14. Qxe2 0-0 15. Be3 Qa5 16. Bd4 e5 17. Bc3 Qc5 18. Qf3 Kh8 19. f5 Bb5 20. Rfe1 Bc4 21. Bxc4 Qxc4 22. Qh5 g6 23. Qf3 gxf5 24. exf5 Qc6 25. Qxc6 bxc6 26. Rad1 Kg7 27. Bb4 1/2-1/2

[Event "Niederrhein-ch"]
[Site "Niederrhein"]
[Date "2005.03.18"]
[Round "1"]
[White "Gruenhagen, Marc"]
[Black "Kamal, Behnam"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "1993"]
[BlackElo "1634"]
[PlyCount "53"]
[EventDate "2005.03.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 105 Extra"]
[Source "ChessBase"]
[SourceDate "2005.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.05.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Bg4 4. Ne5 Bh5 5. cxd5 Qxd5 6. Nc3 Qd8 7. g4 Bg6 8. h4 f6 9. Nxg6 hxg6 10. Qc2 g5 11. Qg6+ Kd7 12. Bg2 gxh4 13. Bf4 Qe8 14. Qd3 e6 15. d5 exd5 16. Nxd5 cxd5 17. Qxd5+ Ke7 18. Bd6+ Kd8 19. Bxf8+ Nd7 20. Rd1 Ne7 21. Qxb7 Rc8 22. Bxg7 Rg8 23. Bxf6 Rxg4 24. Bc6 Rc7 25. Qb8+ Rc8 26. Qb5 Rc7 27. Bxd7 1-0

[Event "Vlissingen HZ op 08th"]
[Site "Vlissingen"]
[Date "2004.08.10"]
[Round "5"]
[White "Gosman, Theo"]
[Black "Gruenhagen, Marc"]
[Result "0-1"]
[ECO "D45"]
[WhiteElo "2125"]
[PlyCount "92"]
[EventDate "2004.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 e6 4. e3 Nf6 5. Nc3 Nbd7 6. Be2 Bd6 7. 0-0 0-0 8. a3 b6 9. b4 Bb7 10. Bb2 Qc7 11. Qb3 e5 12. dxe5 Nxe5 13. cxd5 cxd5 14. Nb5 Ba6 15. Nxe5 Bxe5 16. Bxe5 Qxe5 17. Qc3 Qe7 18. Rac1 Rac8 19. Qd2 Qd7 20. Nc3 Rxc3 21. Bxa6 Rxa3 22. Ra1 Ne4 23. Qd4 Rxa1 24. Rxa1 Qc6 25. Bd3 Ra8 26. f3 Nf6 27. b5 Qe6 28. Kf2 h6 29. Ra6 Qe7 30. g4 Qc7 31. Kg2 Rc8 32. Qa4 Ra8 33. Bf5 Nd7 34. Qd4 Nc5 35. Qxd5 Re8 36. Ra3 Qe7 37. Qd4 g6 38. Bb1 Qh4 39. Rxa7 Ne6 40. Qd7 Nf4+ 41. Kf1 Qh3+ 42. Ke1 Rxe3+ 43. Kd2 Re2+ 44. Kc3 Qxf3+ 45. Kc4 Ne6 46. Bd3 Qf4+ 0-1

[Event "Niederrhein-ch"]
[Site "Hilden"]
[Date "2004.04.10"]
[Round "9"]
[White "Gruenhagen, Marc"]
[Black "Mazurkiewicz, Kazimierz"]
[Result "1-0"]
[ECO "D47"]
[WhiteElo "1923"]
[BlackElo "1945"]
[PlyCount "73"]
[EventDate "2004.04.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. e3 e6 5. Nc3 Nbd7 6. Be2 Bd6 7. 0-0 0-0 8. a3 dxc4 9. Bxc4 b5 10. Bd3 e5 11. Ne4 Nxe4 12. Bxe4 Bb7 13. Qc2 Nf6 14. dxe5 Nxe4 15. exd6 Nxd6 16. Rd1 Qe7 17. Qc5 Rfd8 18. Bd2 Qe6 19. Ba5 Rd7 20. Qe5 Nc4 21. Qxe6 Rxd1+ 22. Rxd1 fxe6 23. Bc3 c5 24. Ng5 b4 25. axb4 cxb4 26. Bxb4 Re8 27. Rd7 h6 28. Rxb7 hxg5 29. Bc3 e5 30. Rxa7 Rb8 31. Kf1 g4 32. Ke2 g6 33. Ra4 Rc8 34. Kd3 e4+ 35. Kxe4 Nd6+ 36. Kd3 Rf8 37. Rxg4 1-0

[Event "Niederrhein-ch"]
[Site "Hilden"]
[Date "2004.04.09"]
[Round "8"]
[White "Tereick, Benjamin"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "A10"]
[WhiteElo "1847"]
[BlackElo "1923"]
[PlyCount "119"]
[EventDate "2004.04.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. c4 f5 2. b3 Nf6 3. Bb2 Nc6 4. Bxf6 exf6 5. Nc3 Be7 6. e3 0-0 7. g3 d6 8. Bg2 Nb4 9. d4 c6 10. Nge2 Na6 11. 0-0 Nc7 12. Qd2 Bd7 13. Rfb1 Be8 14. b4 Bf7 15. d5 Rb8 16. Qd3 c5 17. a3 g6 18. Rb2 Kg7 19. Rab1 cxb4 20. axb4 Qd7 21. Nd4 Rfc8 22. Bh3 Rh8 23. Qe2 Qe8 24. Ra1 Bd8 25. Ncb5 Nxb5 26. Nxb5 a6 27. Nxd6 Qe5 28. Nxf7 Kxf7 29. Bg2 h5 30. Qd2 g5 31. Qd4 f4 32. Qxe5 fxe5 33. exf4 exf4 34. Re2 Bf6 35. Rae1 fxg3 36. fxg3 Rhe8 37. Bf3 g4 38. Be4 Bd4+ 39. Kg2 Kg7 40. Bd3 Rxe2+ 41. Rxe2 Bc3 42. Re7+ Kf6 43. Re6+ Kg7 44. Rb6 Bd4 45. Rg6+ Kf8 46. Bf5 Kf7 47. Rh6 Rh8 48. Bg6+ Ke7 49. Rxh8 Bxh8 50. Bxh5 Bc3 51. b5 Kd6 52. Bxg4 a5 53. Bd1 Kc5 54. Bb3 Kb4 55. Ba2 Ka3 56. d6 Kxa2 57. d7 Bf6 58. c5 Kb3 59. c6 bxc6 60. b6 1-0

[Event "Niederrhein-ch"]
[Site "Hilden"]
[Date "2004.04.08"]
[Round "7"]
[White "Gruenhagen, Marc"]
[Black "Lemanczyk, Thomas"]
[Result "0-1"]
[ECO "E54"]
[WhiteElo "1923"]
[BlackElo "2198"]
[PlyCount "44"]
[EventDate "2004.04.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. e3 c5 5. Nf3 d5 6. Bd3 dxc4 7. Bxc4 0-0 8. 0-0 cxd4 9. exd4 Qc7 10. Qe2 a6 11. Bd2 Nc6 12. Rfd1 Bxc3 13. Bxc3 b5 14. Bd3 Bb7 15. d5 Nxd5 16. Bxh7+ Kxh7 17. Ng5+ Kg6 18. Qe4+ f5 19. Qxe6+ Nf6 20. Nf3 Qf4 21. Ne5+ Nxe5 22. Bxe5 Qe4 0-1

[Event "Niederrhein-ch"]
[Site "Hilden"]
[Date "2004.04.07"]
[Round "6"]
[White "Babaev, Mikhail"]
[Black "Gruenhagen, Marc"]
[Result "0-1"]
[ECO "B43"]
[WhiteElo "1679"]
[BlackElo "1923"]
[PlyCount "81"]
[EventDate "2004.04.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. d4 cxd4 5. Nxd4 b5 6. Be3 Qc7 7. Bd3 Bb7 8. 0-0 Nf6 9. f3 b4 10. Nce2 Nc6 11. Nxc6 Bxc6 12. Qe1 d5 13. Bf4 e5 14. exd5 Bc5+ 15. Kh1 Nxd5 16. Bd2 Qe7 17. Ng3 0-0 18. Ne4 Bd4 19. Ng5 h6 20. Nh7 Rfc8 21. c3 bxc3 22. bxc3 Bc5 23. c4 Nc7 24. Bxh6 gxh6 25. Qg3+ Kh8 26. Qh3 Qd6 27. Bf5 Rd8 28. Ng5 Kg7 29. Nh7 Ne8 30. Qg4+ Kh8 31. Qh5 Ra7 32. f4 Ng7 33. Qh3 Nxf5 34. Qxf5 Qg6 35. Qxg6 fxg6 36. Nf6 Rd2 37. Rg1 Bxg1 38. Rxg1 exf4 39. Ng4 f3 40. Ne3 fxg2+ 41. Nxg2 0-1

[Event "Niederrhein-ch"]
[Site "Hilden"]
[Date "2004.04.06"]
[Round "5"]
[White "Gruenhagen, Marc"]
[Black "Nowik, Volker"]
[Result "0-1"]
[ECO "E81"]
[WhiteElo "1923"]
[BlackElo "2008"]
[PlyCount "56"]
[EventDate "2004.04.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Nge2 Nc6 7. d5 Na5 8. h4 Nxc4 9. Ng3 Ne5 10. h5 e6 11. hxg6 fxg6 12. Be3 c6 13. dxc6 bxc6 14. Qa4 Rf7 15. Bd4 Nfd7 16. Rd1 Rb8 17. Qxa7 Rxb2 18. Qa3 c5 19. Qxb2 cxd4 20. Nb5 d3 21. Qd2 Rxf3 22. Nxd6 Rxg3 23. Qf4 Rg4 24. Qe3 Ba6 25. Qa7 Bc4 26. Nxc4 Rxe4+ 27. Ne3 Nc6 28. Qa4 Rxa4 0-1

[Event "Niederrhein-ch"]
[Site "Hilden"]
[Date "2004.04.05"]
[Round "4"]
[White "Gruenhagen, Marc"]
[Black "Vandebeulque, Jan"]
[Result "1-0"]
[ECO "A58"]
[WhiteElo "1923"]
[BlackElo "1916"]
[PlyCount "55"]
[EventDate "2004.04.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 g6 7. Nf3 d6 8. g3 Bg7 9. Rb1 0-0 10. Bg2 Nbd7 11. 0-0 Nb6 12. b3 Bb7 13. e4 e6 14. Bb2 exd5 15. exd5 Nfxd5 16. Nxd5 Bxd5 17. Bxg7 Kxg7 18. Rb2 Ra3 19. Rd2 Qa8 20. Ne1 Bxg2 21. Nxg2 d5 22. Qc2 Qa5 23. Nf4 d4 24. Re2 Ra8 25. Re7 Kf8 26. Qe4 Qa6 27. Qe5 Qc8 28. Qf6 1-0

[Event "Niederrhein-ch"]
[Site "Hilden"]
[Date "2004.04.04"]
[Round "3"]
[White "Meis, Carsten"]
[Black "Gruenhagen, Marc"]
[Result "1/2-1/2"]
[ECO "D15"]
[WhiteElo "2055"]
[BlackElo "1923"]
[PlyCount "61"]
[EventDate "2004.04.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 a6 5. a4 e6 6. e3 a5 7. Bd2 Nbd7 8. Bd3 Bd6 9. Qe2 0-0 10. e4 dxc4 11. Bxc4 e5 12. dxe5 Nxe5 13. Nxe5 Bxe5 14. 0-0 Re8 15. Rad1 Qc7 16. h3 Bf5 17. Rfe1 Bxe4 18. Nxe4 Nxe4 19. Qxe4 Bh2+ 20. Kh1 Rxe4 21. Rxe4 Bd6 22. Bc3 Kf8 23. Rg4 g6 24. Rh4 f5 25. Rxd6 Qxd6 26. Rxh7 Qd1+ 27. Kh2 Ra7 28. Be5 Qxa4 29. Rh8+ Ke7 30. Rh7+ Kf8 31. Rh8+ 1/2-1/2

[Event "Niederrhein-ch"]
[Site "Hilden"]
[Date "2004.04.03"]
[Round "2"]
[White "Gruenhagen, Marc"]
[Black "Richter, Peter"]
[Result "1-0"]
[ECO "A42"]
[WhiteElo "1923"]
[BlackElo "1834"]
[PlyCount "88"]
[EventDate "2004.04.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 Nc6 5. Nge2 e5 6. Be3 f5 7. d5 Nce7 8. f3 Nh6 9. Qd2 Nf7 10. Nc1 Bd7 11. Be2 a6 12. Nd3 0-0 13. g4 f4 14. Bf2 h6 15. h4 Qb8 16. a3 a5 17. b3 b6 18. Rc1 Qb7 19. 0-0 Rfb8 20. Rc2 Kh7 21. Rfc1 Qc8 22. Kh2 Ng8 23. b4 axb4 24. axb4 Qd8 25. Ne1 Ra3 26. Ng2 Rba8 27. c5 bxc5 28. bxc5 h5 29. g5 Qb8 30. c6 Bc8 31. Rb1 Rb3 32. Rcb2 Raa3 33. Rxb3 Rxb3 34. Rxb3 Qxb3 35. Nb5 Bf8 36. Nxc7 Be7 37. Na8 Bxg5 38. hxg5 Nxg5 39. Qd3 Qxd3 40. Bxd3 Nxf3+ 41. Kh1 g5 42. Ne1 Nd2 43. Nb6 Bh3 44. Nc4 g4 1-0

[Event "Niederrhein-ch"]
[Site "Hilden"]
[Date "2004.04.02"]
[Round "1"]
[White "Wolkowski, Boris"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "D60"]
[WhiteElo "2207"]
[BlackElo "1923"]
[PlyCount "121"]
[EventDate "2004.04.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. a4 e6 6. Bg5 Be7 7. e3 Nbd7 8. Bd3 0-0 9. 0-0 Re8 10. a5 dxc4 11. Bxc4 c5 12. d5 exd5 13. Nxd5 b5 14. axb6 Nxb6 15. Nxb6 Qxb6 16. Qe2 Ra7 17. Rfd1 Be6 18. Ne5 h6 19. Bf4 a5 20. Ra3 Bxc4 21. Qxc4 Bf8 22. Rb3 Qa6 23. Qxa6 Rxa6 24. Rb7 Rd6 25. Ra1 Red8 26. Kf1 Rd2 27. Nxf7 R8d7 28. Rxd7 Nxd7 29. Ne5 Nb6 30. Ra2 a4 31. Nf3 Rd5 32. e4 Rd7 33. Ke2 Be7 34. Ne5 Rd4 35. f3 Bf6 36. Nc6 Rd7 37. e5 Bg5 38. e6 Rd5 39. Bc7 Nc4 40. f4 Rd2+ 41. Ke1 Bf6 42. Rxa4 Rd1+ 43. Kxd1 Nxb2+ 44. Kc2 Nxa4 45. Ne5 c4 46. Bd6 Bxe5 47. Bxe5 Nc5 48. e7 Kf7 49. Bxg7 Kxe7 50. Bxh6 Ke6 51. g4 Ne4 52. f5+ Kf6 53. Be3 Ke5 54. h3 Nf6 55. Bh6 Ne8 56. Kc3 Nd6 57. Bf8 Ne4+ 58. Kxc4 Nf2 59. Bg7+ Kd6 60. Bd4 Nxh3 61. Be3 1-0

[Event "Vlissingen HZ op 07th"]
[Site "Vlissingen"]
[Date "2003.08.03"]
[Round "3"]
[White "Gruenhagen, Marc"]
[Black "Nijboer, Friso"]
[Result "0-1"]
[ECO "A41"]
[BlackElo "2588"]
[PlyCount "54"]
[EventDate "2003.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. d4 d6 2. c4 e5 3. d5 f5 4. Nc3 Nf6 5. Nf3 Be7 6. g3 0-0 7. Bg2 Qe8 8. b3 Nbd7 9. Bb2 Nc5 10. Nd2 Bd7 11. b4 Na4 12. Nxa4 Bxa4 13. Qc1 c6 14. dxc6 Bxc6 15. Bxc6 bxc6 16. 0-0 e4 17. Nb3 d5 18. b5 Rc8 19. bxc6 Rxc6 20. c5 Qd7 21. Qd2 f4 22. Bxf6 Rcxf6 23. Rfd1 Rd8 24. f3 fxg3 25. hxg3 Qh3 26. Qe1 exf3 27. exf3 Rxf3 0-1

[Event "Vlissingen HZ op 07th"]
[Site "Vlissingen"]
[Date "2003.08.02"]
[Round "1"]
[White "Gruenhagen, Marc"]
[Black "Arkell, Keith C"]
[Result "0-1"]
[ECO "A61"]
[BlackElo "2513"]
[PlyCount "130"]
[EventDate "2003.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Bf4 a6 8. a4 Bg7 9. h3 0-0 10. e3 Qe7 11. Nd2 Nh5 12. Bh2 f5 13. Be2 f4 14. Bxh5 fxe3 15. fxe3 gxh5 16. Qe2 Nd7 17. Ra3 Ne5 18. Nce4 Bf5 19. 0-0 h4 20. Bf4 Bxe4 21. Nxe4 Ng6 22. Qc2 Nxf4 23. exf4 Bd4+ 24. Kh1 Rae8 25. Nd2 Qe2 26. Qd3 Bxb2 27. Rf3 Qxd3 28. Raxd3 Bd4 29. g4 hxg3 30. Rxg3+ Kh8 31. Nc4 Rf6 32. Rb3 b5 33. axb5 axb5 34. Rxb5 Rxf4 35. Rb1 Rf6 36. Rg4 Ref8 37. Re1 Rf1+ 38. Rxf1 Rxf1+ 39. Kg2 Rf2+ 40. Kh1 Rf6 41. Re4 Rf5 42. Nxd6 Rxd5 43. Nc4 Kg7 44. Kg2 Kf6 45. Kf3 Rd8 46. Rh4 Kg6 47. Rg4+ Kf5 48. Rh4 Rd7 49. Rf4+ Kg6 50. Rg4+ Kf6 51. Rf4+ Ke7 52. Re4+ Kd8 53. Re6 Kc7 54. h4 Bc3 55. Ne5 Rd5 56. Ng4 Rd7 57. Ne5 Bxe5 58. Rxe5 Kc6 59. Ke3 Kb5 60. h5 Kc4 61. Re6 Kc3 62. Rc6 c4 63. h6 Kb3 64. Rb6+ Kc2 65. Rb8 Rd6 0-1

[Event "Duesseldorf Verband-ch"]
[Site "Hilden"]
[Date "2002.03.30"]
[Round "9.7"]
[White "Gruenhagen, Marc"]
[Black "Beck, Siegmund"]
[Result "1/2-1/2"]
[ECO "D12"]
[PlyCount "9"]
[EventDate "2002.03.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 087 Extra"]
[Source "ChessBase"]
[SourceDate "2002.05.03"]
[SourceVersion "2"]
[SourceVersionDate "2002.08.09"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. Nc3 1/2-1/2

[Event "Duesseldorf Verband-ch"]
[Site "Hilden"]
[Date "2002.03.29"]
[Round "8.9"]
[White "Guenner, Carsten"]
[Black "Gruenhagen, Marc"]
[Result "0-1"]
[ECO "C01"]
[PlyCount "44"]
[EventDate "2002.03.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 087 Extra"]
[Source "ChessBase"]
[SourceDate "2002.05.03"]
[SourceVersion "2"]
[SourceVersionDate "2002.08.09"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Bf5 5. Bf4 Bd6 6. Bxd6 Qxd6 7. c3 Nd7 8. Qe2+ Ne7 9. Nbd2 0-0 10. Qd1 Rae8 11. Be2 Ng6 12. 0-0 Nf4 13. Bb5 c6 14. Nh4 Bg6 15. Ba4 Bh5 16. f3 Qe7 17. Nf5 Qg5 18. g4 Re2 19. Kh1 Bxg4 20. fxg4 Rfe8 21. Ng3 Rxh2+ 22. Kxh2 Qh4+ 0-1

[Event "Duesseldorf Verband-ch"]
[Site "Hilden"]
[Date "2002.03.28"]
[Round "7.10"]
[White "Gruenhagen, Marc"]
[Black "Frenzel, Siegfried"]
[Result "1-0"]
[ECO "D35"]
[PlyCount "50"]
[EventDate "2002.03.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 087 Extra"]
[Source "ChessBase"]
[SourceDate "2002.05.03"]
[SourceVersion "2"]
[SourceVersionDate "2002.08.09"]
[SourceQuality "1"]

1. d4 d5 2. c4 Bf5 3. Nc3 e6 4. cxd5 exd5 5. Nf3 c6 6. Bf4 Nf6 7. e3 Qb6 8. Qc1 h6 9. Ne5 Bd6 10. Nc4 dxc4 11. Bxd6 Na6 12. Bxc4 Nb4 13. 0-0 Nc2 14. Bc5 Qc7 15. e4 Nxa1 16. exf5 0-0-0 17. Rd1 b6 18. Ba3 Ng4 19. g3 c5 20. Ba6+ Kb8 21. Nb5 Qe7 22. Qf4+ Ne5 23. Rxa1 Rxd4 24. Nxd4 Qc7 25. Qxe5 cxd4 1-0

[Event "Duesseldorf Verband-ch"]
[Site "Hilden"]
[Date "2002.03.27"]
[Round "6.9"]
[White "Schwab, Thomas"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "C15"]
[WhiteElo "2095"]
[PlyCount "105"]
[EventDate "2002.03.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 087 Extra"]
[Source "ChessBase"]
[SourceDate "2002.05.03"]
[SourceVersion "2"]
[SourceVersionDate "2002.08.09"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Nge2 dxe4 5. a3 Be7 6. Nxe4 Nf6 7. N2c3 0-0 8. Be2 Nc6 9. Be3 Nd5 10. Nxd5 exd5 11. Nd2 Be6 12. 0-0 Bf6 13. Nb3 b6 14. Rc1 Ne7 15. Bf4 c5 16. c3 c4 17. Na1 Ng6 18. Bg3 Qd7 19. Nc2 Qb5 20. Qd2 Qd7 21. Ne3 Ne7 22. h3 Nf5 23. Ng4 Be7 24. Bh2 f6 25. Rfe1 Rfe8 26. Bd1 Bd6 27. Bxd6 Nxd6 28. Bf3 Re7 29. Ne3 Ne4 30. Bxe4 dxe4 31. Nf1 f5 32. Rcd1 Bd5 33. Qf4 Rf8 34. Ne3 b5 35. Rd2 g6 36. Rde2 Rfe8 37. Qg5 Kg7 38. g4 h6 39. Nxf5+ Qxf5 40. Qxe7+ Rxe7 41. gxf5 gxf5 42. Kh2 Kf6 43. Rg1 a5 44. Ree1 Rb7 45. Kg3 b4 46. axb4 axb4 47. Rb1 bxc3 48. bxc3 Rb3 49. Rxb3 cxb3 50. Rb1 Kg5 51. h4+ Kf6 52. Ra1 Bc4 53. Ra4 1-0

[Event "Duesseldorf Verband-ch"]
[Site "Hilden"]
[Date "2002.03.26"]
[Round "5.7"]
[White "Gruenhagen, Marc"]
[Black "Siemes, Robert"]
[Result "0-1"]
[ECO "A74"]
[BlackElo "2106"]
[PlyCount "78"]
[EventDate "2002.03.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 087 Extra"]
[Source "ChessBase"]
[SourceDate "2002.05.03"]
[SourceVersion "2"]
[SourceVersionDate "2002.08.09"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Bf4 Bg7 8. e4 0-0 9. Be2 a6 10. a4 Qe7 11. Nd2 Nbd7 12. 0-0 Rb8 13. Qc2 Nb6 14. Rfe1 Ne8 15. a5 Na8 16. Bd3 Bd7 17. Rad1 Nac7 18. Bg3 Bb5 19. Kh1 Bxd3 20. Qxd3 Qd8 21. f4 b5 22. axb6 Rxb6 23. Nc4 Rb4 24. e5 Nb5 25. Bf2 Nd4 26. Bxd4 cxd4 27. e6 fxe6 28. dxe6 Qc8 29. Nxd6 Nxd6 30. Nd5 Rb7 31. Qa3 Nf5 32. e7 Re8 33. Qxa6 Qd7 34. Qa2 Kh8 35. Rd2 Qc6 36. Rde2 Rb5 37. Nc7 Qxc7 38. Qf7 Rbb8 39. Re6 Qxf4 0-1

[Event "Duesseldorf Verband-ch"]
[Site "Hilden"]
[Date "2002.03.25"]
[Round "4.4"]
[White "Broeker, Clemens"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "B08"]
[PlyCount "59"]
[EventDate "2002.03.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 087 Extra"]
[Source "ChessBase"]
[SourceDate "2002.05.03"]
[SourceVersion "2"]
[SourceVersionDate "2002.08.09"]
[SourceQuality "1"]

1. d4 g6 2. Nf3 Bg7 3. e4 d6 4. Nc3 Nf6 5. Be3 c6 6. Qd2 b5 7. Bd3 Nbd7 8. a4 Qa5 9. 0-0 b4 10. Na2 Rb8 11. c3 bxc3 12. Nxc3 0-0 13. Rfb1 Re8 14. h3 e5 15. dxe5 Nxe5 16. Nxe5 dxe5 17. Bc4 Ba6 18. b4 Rxb4 19. Rxb4 Bf8 20. Rb2 Bxc4 21. Nd5 Qd8 22. Nxf6+ Qxf6 23. Bxa7 Rd8 24. Qc3 Be6 25. Rb8 Bc8 26. a5 Qd6 27. Rb2 Bh6 28. Bb8 Bd2 29. Qxe5 Qxe5 30. Bxe5 1-0

[Event "Duesseldorf Verband-ch"]
[Site "Hilden"]
[Date "2002.03.24"]
[Round "3.5"]
[White "Gruenhagen, Marc"]
[Black "Schmoll, Heinz"]
[Result "1-0"]
[ECO "E20"]
[PlyCount "117"]
[EventDate "2002.03.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 087 Extra"]
[Source "ChessBase"]
[SourceDate "2002.05.03"]
[SourceVersion "2"]
[SourceVersionDate "2002.08.09"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 Nh5 5. Nh3 f5 6. Bg5 Be7 7. Qd2 h6 8. Bxe7 Qxe7 9. e3 0-0 10. Bd3 c5 11. 0-0-0 cxd4 12. exd4 Nc6 13. Bb1 Qh4 14. Ne2 a6 15. Qe1 Qxe1 16. Rhxe1 b5 17. d5 Ne5 18. dxe6 dxe6 19. c5 Nc4 20. Nef4 Nxf4 21. Nxf4 e5 22. b3 exf4 23. bxc4 bxc4 24. Rd4 Ra7 25. Rxf4 Rc7 26. Rxc4 Bb7 27. Re5 f4 28. Bc2 g5 29. Ba4 g4 30. c6 gxf3 31. gxf3 Rf6 32. Bb3 Bc8 33. Rxf4+ Kg7 34. Rxf6 Kxf6 35. Rc5 Ke7 36. Rc3 Kd6 37. Kd2 Rxc6 38. Rxc6+ Kxc6 39. Ke3 Kc5 40. Ke4 Bb7+ 41. Kf4 Kd4 42. Kg4 Ke5 43. f4+ Kf6 44. Kg3 Bc6 45. Kf2 a5 46. Bc2 Bd7 47. Ke3 Be6 48. a3 h5 49. Kd4 h4 50. Kc5 Bf5 51. Ba4 Bd3 52. Kd4 Ba6 53. Bd7 Ke7 54. Bg4 Kd6 55. Ke4 Bf1 56. Kf5 Kd5 57. Kf6 Ke4 58. Kg5 h3 59. f5 1-0

[Event "Duesseldorf Verband-ch"]
[Site "Hilden"]
[Date "2002.03.23"]
[Round "2.10"]
[White "Naber, Armin"]
[Black "Gruenhagen, Marc"]
[Result "0-1"]
[ECO "A41"]
[PlyCount "52"]
[EventDate "2002.03.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 087 Extra"]
[Source "ChessBase"]
[SourceDate "2002.05.03"]
[SourceVersion "2"]
[SourceVersionDate "2002.08.09"]
[SourceQuality "1"]

1. d4 d6 2. g3 g6 3. b3 Bg7 4. Bb2 c5 5. e3 Nc6 6. Bg2 Bd7 7. Nf3 e6 8. Nbd2 Qc7 9. 0-0 Nge7 10. Rc1 cxd4 11. exd4 0-0 12. c3 Rac8 13. Ba3 d5 14. c4 Qa5 15. cxd5 Qxa3 16. dxc6 Bxc6 17. Nc4 Qa6 18. Nd6 Bxf3 19. Qxf3 Qxd6 20. Qxb7 Bxd4 21. Rxc8 Rxc8 22. h4 Rc2 23. a4 Nf5 24. Qe4 Rb2 25. Rc1 Bxf2+ 26. Kh1 Nxg3+ 0-1

[Event "Duesseldorf Verband-ch"]
[Site "Hilden"]
[Date "2002.03.22"]
[Round "1.3"]
[White "Gruenhagen, Marc"]
[Black "Kappelt, Joerg"]
[Result "0-1"]
[ECO "A42"]
[PlyCount "68"]
[EventDate "2002.03.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 087 Extra"]
[Source "ChessBase"]
[SourceDate "2002.05.03"]
[SourceVersion "2"]
[SourceVersionDate "2002.08.09"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 Nc6 5. Be3 e5 6. d5 Nce7 7. g4 f5 8. gxf5 gxf5 9. Qh5+ Ng6 10. exf5 Qh4 11. Qxh4 Nxh4 12. Nb5 Kd8 13. Bd3 Nxf5 14. Bg5+ Nf6 15. Ne2 h6 16. Bxf6+ Bxf6 17. Ng3 Nh4 18. 0-0-0 Bg4 19. Be2 Bxe2 20. Nxe2 Bg5+ 21. Kc2 Rf8 22. Rdf1 Kd7 23. f4 Bxf4 24. Nxf4 exf4 25. Nd4 f3 26. Rf2 Rf4 27. Kd3 Rg8 28. Rhf1 Rgg4 29. Nxf3 Nxf3 30. Rxf3 Rd4+ 31. Kc3 Rxc4+ 32. Kb3 Rce4 33. Rc1 Rb4+ 34. Kc3 Rbc4+ 0-1

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2002.??.??"]
[Round "2.31"]
[White "Mostertman, Conrad"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "2095"]
[BlackElo "1928"]
[PlyCount "63"]
[EventDate "2002.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 g6 3. g3 Bg7 4. Bg2 Nf6 5. 0-0 0-0 6. d3 c5 7. Nc3 d4 8. Na4 Qc7 9. c4 Nfd7 10. Bd2 Nc6 11. a3 a6 12. b4 cxb4 13. axb4 b5 14. Nb2 Bb7 15. Rc1 Rfc8 16. Qb3 bxc4 17. Nxc4 e6 18. Qb2 Nb6 19. Nce5 Qd6 20. Ng5 Rc7 21. Ngxf7 Rxf7 22. Bxc6 Bxe5 23. Bxb7 Rxb7 24. fxe5 Qxe5 25. Bf4 Qg7 26. Rc6 Qd7 27. Rd6 Qe7 28. Qxd4 Nd5 29. Qe5 Rb6 30. Rxd5 Qa7 31. Be3 exd5 32. Bd4 1-0

[Event "Dieren op-A"]
[Site "Dieren"]
[Date "2001.??.??"]
[Round "?"]
[White "Bohlmeijer, Pieter"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "E24"]
[PlyCount "91"]
[EventDate "2001.07.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 b6 6. f3 0-0 7. Bg5 d6 8. e4 Nbd7 9. Bd3 Ba6 10. f4 e5 11. fxe5 dxe5 12. Nf3 Re8 13. 0-0 c5 14. Nxe5 Nxe5 15. dxe5 Rxe5 16. Bxf6 gxf6 17. Qg4+ Kh8 18. Qf4 Qe7 19. Rae1 Re8 20. Qxf6+ Qxf6 21. Rxf6 Kg7 22. Ref1 R8e7 23. R1f5 Rxf5 24. Rxf5 Bb7 25. e5 Rd7 26. Rg5+ Kf8 27. Rg3 Ke7 28. Re3 Bc6 29. Kf2 h6 30. g4 Rd8 31. h4 Rg8 32. Bf5 Bd7 33. Bxd7 Kxd7 34. Kf3 Ke6 35. Rd3 Kxe5 36. Rd7 Ke6 37. Rd3 Ke5 38. Rd7 Ke6 39. Rxa7 Rd8 40. Rb7 Rd6 41. Ke4 Kf6 42. a4 Kg6 43. Ke5 Re6+ 44. Kd5 Rf6 45. Rc7 h5 46. g5 1-0

[Event "Oberhausen op"]
[Site "Oberhausen"]
[Date "1998.??.??"]
[Round "?"]
[White "Gruenhagen, Marc"]
[Black "Boehm, Joachim"]
[Result "0-1"]
[ECO "D36"]
[PlyCount "110"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. cxd5 exd5 6. e3 0-0 7. Bd3 c6 8. Nge2 Nbd7 9. Qc2 Re8 10. 0-0 Nf8 11. f3 Nh5 12. Bxe7 Qxe7 13. e4 dxe4 14. fxe4 Be6 15. d5 Bd7 16. Kh1 Ng6 17. Qd2 Rad8 18. Nd4 Qh4 19. Qf2 Qxf2 20. Rxf2 Ne5 21. Be2 Nf6 22. h3 cxd5 23. exd5 Bc8 24. Bb5 Re7 25. Rd1 a6 26. Ba4 Nc4 27. Bb3 Nd6 28. a4 Rde8 29. Nc2 Nfe4 30. Nxe4 Rxe4 31. Kg1 a5 32. Rd4 Bd7 33. Rfd2 Kf8 34. Rxe4 Rxe4 35. Rd4 Ke7 36. Rxe4+ Nxe4 37. Ne3 Nc5 38. d6+ Kxd6 39. Nc4+ Kc7 40. Bc2 h6 41. b3 b6 42. Kf2 Be6 43. Nd2 Kd6 44. Ke3 Bd5 45. g3 Ne6 46. Be4 Bxe4 47. Nxe4+ Kd5 48. Nc3+ Kc5 49. Kd3 f5 50. h4 g5 51. hxg5 hxg5 52. Ne2 Kb4 53. Nc1 f4 54. gxf4 Nxf4+ 55. Kd4 Ka3 0-1

[Event "Oberhausen op"]
[Site "Oberhausen"]
[Date "1998.??.??"]
[Round "?"]
[White "Gruenhagen, Marc"]
[Black "Matthies, Jochen"]
[Result "1-0"]
[ECO "E81"]
[PlyCount "67"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d6 4. e4 Bg7 5. f3 0-0 6. Nge2 Nc6 7. Bg5 e5 8. d5 Ne7 9. Qd2 a6 10. g4 Bd7 11. Ng3 Ne8 12. h4 f6 13. Be3 c5 14. Be2 Rb8 15. g5 f5 16. exf5 Nxf5 17. Nge4 Nxe3 18. Qxe3 Qe7 19. 0-0-0 b5 20. Rdg1 bxc4 21. Bxc4 Nc7 22. Nxc5 Bb5 23. Bb3 Rf4 24. N5e4 Rbf8 25. Rg3 a5 26. h5 Be8 27. Ne2 R4f5 28. N4c3 gxh5 29. Bc2 e4 30. Bxe4 Bf7 31. f4 Re8 32. Qd3 Bxd5 33. Bxd5+ Nxd5 34. Qxf5 1-0

[Event "Oberhausen op"]
[Site "Oberhausen"]
[Date "1998.??.??"]
[Round "?"]
[White "Hemmers, Dieter"]
[Black "Gruenhagen, Marc"]
[Result "0-1"]
[ECO "A16"]
[PlyCount "65"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 g6 7. Bc4 Bg7 8. 0-0 0-0 9. Rb1 Nc6 10. Qe2 Qc7 11. Rd1 Rd8 12. Bb2 Na5 13. Bd3 Be6 14. Ra1 c4 15. Bc2 Bg4 16. h3 Bxf3 17. Qxf3 Nc6 18. d4 cxd3 19. Rxd3 Ne5 20. Qg3 Qc4 21. Rxd8+ Rxd8 22. Qe3 b6 23. f4 Nd3 24. Rd1 Qxa2 25. Rxd3 Rxd3 26. Qxd3 Qxb2 27. Qd8+ Bf8 28. Qd2 a5 29. c4 a4 30. Qd3 a3 31. Qb3 Qd4+ 32. Kh2 e6 33. Bd3 0-1

[Event "Oberhausen op"]
[Site "Oberhausen"]
[Date "1998.??.??"]
[Round "?"]
[White "Kathstede, Gerd"]
[Black "Gruenhagen, Marc"]
[Result "1/2-1/2"]
[ECO "B33"]
[PlyCount "31"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Nxe7 Qxe7 11. c3 Be6 12. Be2 Rd8 13. 0-0 0-0 14. c4 b4 15. Nc2 h6 16. Bxf6 1/2-1/2

[Event "Oberhausen op"]
[Site "Oberhausen"]
[Date "1998.??.??"]
[Round "?"]
[White "Wyrwich, Markus"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "E34"]
[PlyCount "47"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. Bg5 dxc4 6. Nf3 h6 7. Bd2 Nbd7 8. e3 a6 9. Bxc4 b5 10. Be2 Bb7 11. 0-0 0-0 12. a4 bxa4 13. Nxa4 Be4 14. Qc1 Bd6 15. b4 Nd5 16. Nc5 Bxc5 17. bxc5 Nb8 18. Ra4 c6 19. Ne5 f6 20. Nc4 Nc7 21. Ba5 Qe7 22. Bxc7 Qxc7 23. Nd6 Bg6 24. Qa3 1-0

[Event "Porz op 25th"]
[Site "Cologne"]
[Date "1990.??.??"]
[Round "?"]
[White "Radecke, Peter"]
[Black "Gruenhagen, Marc"]
[Result "1-0"]
[ECO "C15"]
[PlyCount "37"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Nge2 dxe4 5. a3 Bxc3+ 6. Nxc3 Nc6 7. Bf4 Nge7 8. Nxe4 0-0 9. c3 Ng6 10. Bc1 b6 11. h4 Nge7 12. Bd3 e5 13. Qh5 g6 14. Qf3 Nd5 15. Bh6 Re8 16. Bg5 Qd7 17. Bc4 exd4 18. 0-0-0 Ne5 19. Bxd5 1-0

