[Event "Zuerich Seniors op 08th"]
[Site "Zuerich"]
[Date "2010.02.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Duttweiler, Ruedi"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1415"]
[BlackElo "1877"]
[PlyCount "98"]
[EventDate "2010.01.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 e6 3. e3 Bd6 4. Bg3 Nf6 5. Nd2 0-0 6. Bd3 c5 7. c3 cxd4 8. exd4 b6 9. Ngf3 h6 10. Ne5 Bb7 11. Qf3 Nc6 12. Bc2 Rc8 13. Qd3 Nb8 14. h3 Ba6 15. Qe3 Nc6 16. Bh4 Be7 17. g4 Nd7 18. Bxe7 Qxe7 19. Ndf3 Ndxe5 20. Nxe5 Nxe5 21. Qxe5 f6 22. Qg3 e5 23. dxe5 Qxe5+ 24. Qxe5 fxe5 25. Bf5 Rcd8 26. 0-0-0 Kf7 27. Bd3 Bxd3 28. Rxd3 Ke6 29. Rh2 Rf4 30. Kd1 Rdf8 31. Ke1 Rf3 32. Rxf3 Rxf3 33. Ke2 e4 34. h4 Ke5 35. Rh1 Kf4 36. Rg1 g5 37. h5 Ke5 38. Rd1 Rf4 39. Rg1 a5 40. Rg3 b5 41. a3 Rf7 42. f3 a4 43. fxe4 dxe4 44. Rg1 Rf3 45. Rg2 Kf4 46. Rg1 e3 47. Rg2 Rf2+ 48. Rxf2+ exf2 49. Kxf2 Kxg4 0-1

[Event "Zuerich Seniors op 08th"]
[Site "Zuerich"]
[Date "2010.02.??"]
[Round "?"]
[White "Duttweiler, Ruedi"]
[Black "Koch, Jost"]
[Result "0-1"]
[ECO "C89"]
[WhiteElo "1877"]
[BlackElo "1984"]
[PlyCount "32"]
[EventDate "2010.01.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 Nf6 12. d4 Bd6 13. Re1 Ng4 14. g3 Qf6 15. f3 Nxh2 16. Kxh2 Qh4+ 0-1

[Event "Zuerich Seniors op 08th"]
[Site "Zuerich"]
[Date "2010.02.??"]
[Round "?"]
[White "Naepflin, Reinhold"]
[Black "Duttweiler, Ruedi"]
[Result "0-1"]
[ECO "C06"]
[WhiteElo "1721"]
[BlackElo "1877"]
[PlyCount "96"]
[EventDate "2010.01.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 f5 8. exf6 Nxf6 9. Nf3 cxd4 10. cxd4 Bb4+ 11. Bd2 Bxd2+ 12. Qxd2 0-0 13. 0-0 Qd6 14. Qf4 Qxf4 15. Nxf4 Ne4 16. Ne2 Bd7 17. Bxe4 dxe4 18. Nd2 Nb4 19. Nxe4 Bb5 20. N4c3 Bc6 21. Rad1 Nd5 22. Rd2 Rf6 23. Ng3 Nf4 24. f3 Raf8 25. Nge4 Rg6 26. Ng3 h5 27. Kh1 h4 28. Nge4 h3 29. g3 Nd5 30. f4 Nxc3 31. bxc3 Bxe4+ 32. Kg1 Bd5 33. Rc1 Rc8 34. Kf2 Rf6 35. Ke3 Rff8 36. Kd3 Rc4 37. Rb2 Rfc8 38. Re2 Ra4 39. Rec2 Bc4+ 40. Kd2 Rc6 41. Rb2 b5 42. Rcc2 Rca6 43. Ke3 Rxa2 44. Kd2 Rxb2 45. Rxb2 Ra2 46. Kc2 Rxb2+ 47. Kxb2 g5 48. Ka3 a5 0-1

[Event "Zuerich Seniors op 08th"]
[Site "Zuerich"]
[Date "2010.01.28"]
[Round "4"]
[White "Duttweiler, Ruedi"]
[Black "Sigrist, Walter"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "1877"]
[BlackElo "1847"]
[PlyCount "44"]
[EventDate "2010.01.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. g4 Bg6 5. Bg2 e6 6. f4 h5 7. g5 c5 8. Nf3 cxd4 9. Nxd4 Ne7 10. Nd2 Qb6 11. N2f3 Nbc6 12. c3 Nxd4 13. Nxd4 Nf5 14. Qa4+ Kd8 15. Qb5 Qxb5 16. Nxb5 a6 17. Nd4 Nxd4 18. cxd4 Bb4+ 19. Bd2 Bxd2+ 20. Kxd2 Rc8 21. Rac1 Kd7 22. Rxc8 Rxc8 1/2-1/2

[Event "Zuerich Seniors op 08th"]
[Site "Zuerich"]
[Date "2010.01.26"]
[Round "2"]
[White "Duttweiler, Ruedi"]
[Black "Lenzhofer, Bruno"]
[Result "1/2-1/2"]
[ECO "C09"]
[WhiteElo "1877"]
[BlackElo "2053"]
[PlyCount "48"]
[EventDate "2010.01.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6 6. Bb5 Bd6 7. 0-0 Nge7 8. dxc5 Bxc5 9. Nb3 Bd6 10. Nbd4 0-0 11. Bg5 f6 12. Be3 Bg4 13. h3 Nxd4 14. Bxd4 Bh5 15. Be2 Re8 16. Bc3 a6 17. Re1 Qd7 18. Nd4 Bxe2 19. Rxe2 Nc6 20. Qd2 Rxe2 21. Nxe2 Be5 22. Bd4 Re8 23. c3 Qe6 24. Be3 Rd8 1/2-1/2

[Event "Zuerich op-B 29th"]
[Site "Zuerich"]
[Date "2005.12.26"]
[Round "1"]
[White "Duttweiler, Ruedi"]
[Black "Senn, Roland"]
[Result "0-1"]
[ECO "C02"]
[PlyCount "52"]
[EventDate "2005.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 c5 2. c3 e6 3. d4 d5 4. e5 Nc6 5. Nf3 Nge7 6. Be2 Nf5 7. g4 Nh4 8. 0-0 Nxf3+ 9. Bxf3 cxd4 10. cxd4 Qb6 11. Nc3 Qxd4 12. Nb5 Qxd1 13. Bxd1 Rb8 14. Ba4 a6 15. Nc7+ Kd7 16. Nxd5 exd5 17. Rd1 Ke6 18. f4 Bc5+ 19. Kg2 g6 20. Bd2 b5 21. Bc2 Bb7 22. f5+ gxf5 23. Bxf5+ Kxe5 24. Re1+ Kf6 25. Bd7 d4 26. Rac1 Ne5+ 0-1

[Event "Zuerich op-B 26th"]
[Site "Zuerich"]
[Date "2002.??.??"]
[Round "1"]
[White "Cucchiani, Claudio"]
[Black "Duttweiler, Ruedi"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "1974"]
[BlackElo "1724"]
[PlyCount "35"]
[EventDate "2002.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 e6 4. Nc3 Nf6 5. Ne5 Be7 6. g3 0-0 7. Bg2 c5 8. e3 cxd4 9. exd4 Nd5 10. 0-0 a6 11. Nxc4 Nb6 12. Ne5 N8d7 13. Be3 Nxe5 14. dxe5 Nc4 15. Bd4 Nxb2 16. Qh5 Ba3 17. Ne4 Be7 18. Bxb2 1-0

[Event "Zuerich op-B 25th"]
[Site "Zuerich"]
[Date "2001.??.??"]
[Round "1"]
[White "Baertsch, Juerg"]
[Black "Duttweiler, Ruedi"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "1898"]
[BlackElo "1656"]
[PlyCount "47"]
[EventDate "2001.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 c5 3. b3 Nf6 4. Bb2 e6 5. e3 g6 6. g4 Bg7 7. Bb5+ Bd7 8. Bxd7+ Nbxd7 9. g5 Nh5 10. Bxg7 Nxg7 11. Nc3 a6 12. Qe2 b5 13. Qg2 0-0 14. h4 Qc7 15. Ne2 Nh5 16. Ng3 Nxg3 17. Qxg3 c4 18. h5 Kg7 19. Ke2 cxb3 20. hxg6 hxg6 21. Rh7+ Kxh7 22. Qh4+ Kg8 23. Rh1 Qc4+ 24. Kf2 1-0

