[Event "Zuerich Seniors op 08th"]
[Site "Zuerich"]
[Date "2010.02.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Briggen, Franz"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1415"]
[BlackElo "1532"]
[PlyCount "37"]
[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 Nf6 3. e3 e6 4. Nd2 Bd6 5. Bg3 0-0 6. c3 Re8 7. Ngf3 Nc6 8. Ne5 Bxe5 9. dxe5 Nd7 10. f4 Ne7 11. Bd3 Nc5 12. Bc2 Rf8 13. Qh5 Nf5 14. Bf2 g6 15. Qh3 b6 16. 0-0-0 Bb7 17. Rhg1 Qe8 18. g4 Ng7 19. Bh4 1/2-1/2

[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 "Gsell, Albert"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1474"]
[BlackElo "1415"]
[PlyCount "81"]
[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. e5 c5 4. c3 Bd7 5. Nf3 Qb6 6. b3 cxd4 7. cxd4 Bb5 8. Be2 Bxe2 9. Qxe2 Qa6 10. Qxa6 Nxa6 11. a3 h5 12. h4 Nh6 13. Bxh6 Rxh6 14. 0-0 Rc8 15. Nbd2 Be7 16. g3 Rh8 17. Rac1 Nc7 18. b4 g6 19. Rc2 Kd7 20. Rfc1 Nb5 21. Nb1 Rxc2 22. Rxc2 Rc8 23. Rxc8 Kxc8 24. a4 Nc7 25. b5 a6 26. bxa6 bxa6 27. Nbd2 Kb7 28. Nb3 Kb6 29. Kf1 Ne8 30. Ke2 f6 31. Ke3 f5 32. Kf4 Nc7 33. Ng5 a5 34. Nh7 Na6 35. Nf6 Bb4 36. Kg5 Be1 37. Kxg6 Bxf2 38. Nxh5 Nc7 39. Kg5 Ne8 40. Nf4 Nc7 41. h5 1-0

[Event "Zuerich Seniors op 08th"]
[Site "Zuerich"]
[Date "2010.02.??"]
[Round "?"]
[White "Sauter, Alfred"]
[Black "Berchten, Eduard"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1340"]
[BlackElo "1415"]
[PlyCount "74"]
[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. Nf3 d5 3. exd5 exd5 4. d4 Bd6 5. h3 h6 6. a3 Ne7 7. c4 c6 8. c5 Bc7 9. b4 0-0 10. Bd3 Ng6 11. 0-0 Qf6 12. Re1 Bf5 13. Be3 Bxd3 14. Qxd3 Nd7 15. Nbd2 Rfe8 16. Nf1 Re6 17. Bd2 Rae8 18. Rxe6 Rxe6 19. Re1 Nf4 20. Bxf4 Bxf4 21. Rxe6 Qxe6 22. Qd1 Nf6 23. N1d2 g5 24. Qe1 Ne4 25. Nxe4 dxe4 26. Nh2 f5 27. g3 Bc7 28. Kg2 Kf7 29. Qe2 Kg6 30. Nf1 Qd5 31. Qe3 f4 32. gxf4 Bxf4 33. Qe2 e3+ 34. f3 Qxd4 35. Qc2+ Kh5 36. Qf5 Qb2+ 37. Kg1 Qf2+ 0-1

[Event "Zuerich Seniors op 08th"]
[Site "Zuerich"]
[Date "2010.02.??"]
[Round "?"]
[White "Sigrist, Paul"]
[Black "Berchten, Eduard"]
[Result "1/2-1/2"]
[ECO "A01"]
[WhiteElo "1422"]
[BlackElo "1415"]
[PlyCount "64"]
[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. b3 d5 2. Bb2 Bf5 3. d3 e6 4. e3 Nd7 5. Nf3 h6 6. Be2 Ngf6 7. Nd4 Bh7 8. c3 c5 9. Nf3 Be7 10. Nbd2 0-0 11. 0-0 Qc7 12. c4 Rfe8 13. Rc1 Rad8 14. Qc2 b6 15. a3 Ng4 16. h3 Nge5 17. Qc3 Nxf3+ 18. Nxf3 Bf6 19. d4 Be4 20. Nd2 Bf5 21. Bd3 Bxd3 22. Qxd3 Nb8 23. Bc3 Nc6 24. b4 cxd4 25. exd4 dxc4 26. Qxc4 Qb7 27. Nf3 Ne7 28. b5 Rc8 29. Qb3 Nf5 30. Rfd1 Red8 31. Qb2 Qe4 32. Re1 Qd5 1/2-1/2

[Event "Zuerich Seniors op 08th"]
[Site "Zuerich"]
[Date "2010.02.??"]
[Round "?"]
[White "Wisser, Karl"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1574"]
[BlackElo "1415"]
[PlyCount "67"]
[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. e5 c5 4. c3 Qb6 5. Nf3 Bd7 6. a3 a5 7. Be2 Bb5 8. 0-0 Bxe2 9. Qxe2 cxd4 10. cxd4 Nc6 11. Be3 Nge7 12. Nc3 Nf5 13. Qd2 Be7 14. Rac1 h5 15. Qd3 g6 16. Na4 Qa7 17. Nc5 Kf8 18. Qb5 Nd8 19. Nd7+ Kg7 20. Rc7 Qa6 21. Qxa6 Rxa6 22. Rfc1 Rc6 23. h3 Nxe3 24. fxe3 Rxc1+ 25. Rxc1 Nc6 26. Nc5 Bxc5 27. Rxc5 Rc8 28. Nd2 b6 29. Rc3 f6 30. Nf3 f5 31. Ng5 Kf8 32. Nxe6+ Ke7 33. Nf4 g5 34. Nxd5+ 1-0

[Event "Zuerich Seniors op 07th"]
[Site "Zuerich"]
[Date "2009.02.03"]
[Round "7"]
[White "Brand, Michel"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "A84"]
[PlyCount "115"]
[EventDate "2009.01.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 f5 2. Nf3 Nf6 3. d4 e6 4. e3 Be7 5. Bd3 0-0 6. 0-0 a5 7. b3 d6 8. Bb2 Nbd7 9. Nc3 Qe8 10. e4 fxe4 11. Nxe4 Nxe4 12. Bxe4 Nf6 13. Bd3 Qh5 14. Be2 Qe8 15. Re1 h6 16. Bd3 g6 17. Qc2 Kg7 18. Nh4 Rg8 19. Nxg6 b6 20. Re3 Nh5 21. Rh3 Nf6 22. Nxe7 Qxe7 23. Rg3+ Kf8 24. Rxg8+ Kxg8 25. Re1 Bd7 26. Re3 Kh8 27. Rh3 h5 28. Bg6 Be8 29. Bc1 Bxg6 30. Qxg6 Rg8 31. Qh6+ Nh7 32. Qxh5 Rg7 33. Bh6 Rf7 34. f4 Qf6 35. Qd1 Qg6 36. Bg5 Kg8 37. Rh6 Qe4 38. h4 Nxg5 39. fxg5 Qe3+ 40. Kh1 Rf2 41. Rg6+ Kf8 42. Rf6+ Rxf6 43. gxf6 Qh6 44. Qg4 Qxf6 45. Qf3 Qxf3 46. gxf3 Kf7 47. Kg2 Kg6 48. Kg3 Kf5 49. f4 c5 50. d5 e5 51. fxe5 Kxe5 52. Kg4 Kf6 53. h5 Kg7 54. Kg5 Kh7 55. h6 Kh8 56. Kf6 Kh7 57. Ke6 Kxh6 58. Kxd6 1-0

[Event "Zuerich Seniors op 07th"]
[Site "Zuerich"]
[Date "2009.??.??"]
[Round "?"]
[White "Baumann, Kurt1111"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "1983"]
[PlyCount "51"]
[EventDate "2009.01.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 e6 2. c4 d5 3. g3 Nf6 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 c6 7. 0-0 Be7 8. d4 Qb6 9. Nc3 0-0 10. e4 Bc8 11. b3 Nbd7 12. Bf4 Nh5 13. Be3 c5 14. dxc5 Bxc5 15. Na4 Qb4 16. Bxc5 Qxc4 17. bxc4 Rd8 18. Rad1 b6 19. Bd6 Re8 20. e5 Bb7 21. Nd4 Bxg2 22. Kxg2 Rac8 23. Rc1 f6 24. f4 Kf7 25. Nb5 a6 26. Nc7 1-0

[Event "Zuerich Seniors op 07th"]
[Site "Zuerich"]
[Date "2009.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Bernegger, Willi"]
[Result "1/2-1/2"]
[ECO "D02"]
[PlyCount "49"]
[EventDate "2009.01.26"]
[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. Nf3 Nf6 3. Bf4 Bf5 4. h3 c6 5. c3 h6 6. Qb3 Qc8 7. e3 e6 8. Nbd2 Be7 9. Be2 0-0 10. 0-0 Rd8 11. Ne5 Bd6 12. Ndf3 Qc7 13. Qd1 Nfd7 14. Qd2 f6 15. Nxd7 Nxd7 16. Bxd6 Qxd6 17. Nh4 Bh7 18. f4 Nf8 19. Bd3 Qd7 20. Qc2 Bxd3 21. Qxd3 Qf7 22. Rae1 Qh5 23. Nf3 Re8 24. Kh2 Re7 25. g4 1/2-1/2

[Event "Ascona Seniors op 8th"]
[Site "Ascona"]
[Date "2009.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Lavanchy, Marc Henri"]
[Result "1/2-1/2"]
[ECO "B13"]
[BlackElo "1952"]
[PlyCount "107"]
[EventDate "2009.11.02"]
[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 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. Nbd2 d5 5. h3 0-0 6. e3 c5 7. c3 cxd4 8. exd4 Nc6 9. Bd3 b6 10. 0-0 e6 11. Re1 Qe7 12. Ne5 Nxe5 13. Bxe5 Nd7 14. Bxg7 Kxg7 15. Nf3 Bb7 16. Qe2 a6 17. Ne5 Nf6 18. Ng4 Nxg4 19. Qxg4 Rac8 20. Re3 Rc7 21. Rae1 Rfc8 22. Qg3 b5 23. a3 Qd7 24. Qe5+ Kg8 25. h4 h5 26. Qg5 Qd8 27. Qxd8+ Rxd8 28. R1e2 Bc6 29. g3 a5 30. b4 axb4 31. axb4 Ra8 32. Kg2 Be8 33. Rc2 Ra3 34. Bf1 Kf8 35. Kf3 Rb3 36. Ke2 Rxb4 37. Kd3 Rb1 38. Bg2 Ra7 39. Kd2 Raa1 40. Ke2 Bc6 41. Kf3 Kg7 42. Ree2 Bd7 43. Ra2 f6 44. Rxa1 Rxa1 45. Bh3 Kf7 46. Ke3 Ra3 47. Kd2 Ke7 48. Kc2 Ra2+ 49. Kd3 Rxe2 50. Kxe2 e5 51. Bg2 Kd6 52. Ke3 exd4+ 53. Kxd4 Bc6 54. f4 1/2-1/2

[Event "Ascona Seniors op 8th"]
[Site "Ascona"]
[Date "2009.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Lippuner, Hans"]
[Result "0-1"]
[ECO "A48"]
[PlyCount "38"]
[EventDate "2009.11.02"]
[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 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. Nbd2 0-0 5. c3 d6 6. e4 Nh5 7. Bg5 h6 8. Bh4 Nc6 9. Qc2 g5 10. Bg3 e5 11. dxe5 dxe5 12. 0-0-0 Qe7 13. Be2 Nxg3 14. hxg3 Be6 15. Kb1 Qc5 16. Rhf1 Bxa2+ 17. Kc1 Be6 18. Nb3 Qb6 19. Ne1 Bxb3 0-1

[Event "Ascona Seniors op 8th"]
[Site "Ascona"]
[Date "2009.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Neitzsch, Richard"]
[Result "1/2-1/2"]
[ECO "D02"]
[PlyCount "39"]
[EventDate "2009.11.02"]
[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 Nf6 2. Nf3 d5 3. Bf4 e6 4. e3 a6 5. Nbd2 Be7 6. Bd3 Nh5 7. Bg3 Nxg3 8. hxg3 f5 9. c3 Nd7 10. Ne5 Nxe5 11. dxe5 g6 12. Nf3 c5 13. Qe2 b5 14. Rd1 Qc7 15. Bc2 Bd7 16. b3 g5 17. Nxg5 Bxg5 18. Qh5+ Kf8 19. Qxg5 Qxe5 20. Kd2 1/2-1/2

[Event "Zuerich Seniors op 07th"]
[Site "Zuerich"]
[Date "2009.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Niederberger, Josef"]
[Result "1/2-1/2"]
[ECO "D02"]
[PlyCount "61"]
[EventDate "2009.01.26"]
[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. Nf3 Nf6 3. Bf4 e6 4. h3 c5 5. c3 Nc6 6. e3 a6 7. Nbd2 cxd4 8. exd4 Bd6 9. Bxd6 Qxd6 10. Bd3 0-0 11. 0-0 Re8 12. Re1 b5 13. Ne5 Bb7 14. f4 Nd7 15. g3 f6 16. Nxd7 Qxd7 17. Qh5 f5 18. Nf3 Rf8 19. Ne5 Qd6 20. Re2 Rf6 21. Kh2 Raf8 22. Qf3 Rh6 23. Rae1 Qe7 24. Re3 Nxe5 25. Rxe5 Qf7 26. Rg1 Qf6 27. Bf1 g5 28. fxg5 Qxg5 29. Qf4 Qf6 30. Re3 Kh8 31. Qe5 1/2-1/2

[Event "Zuerich Seniors op 07th"]
[Site "Zuerich"]
[Date "2009.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Ramsauer, Jakob"]
[Result "1/2-1/2"]
[ECO "D02"]
[PlyCount "71"]
[EventDate "2009.01.26"]
[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 Nf6 2. Nf3 d5 3. Bf4 e6 4. h3 c5 5. c3 Nc6 6. e3 Bd7 7. Bd3 c4 8. Bc2 Be7 9. Nbd2 0-0 10. 0-0 Rc8 11. e4 b5 12. e5 Nh5 13. Bh2 g6 14. g4 Ng7 15. Qe2 f5 16. exf6 Bxf6 17. Ne5 Nxe5 18. Bxe5 Bh4 19. f4 Bf6 20. Bxf6 Rxf6 21. Rae1 Qb6 22. Qe5 Rcf8 23. Rf2 a5 24. a3 b4 25. axb4 axb4 26. Rb1 R6f7 27. Kg2 Qa5 28. Kg3 bxc3 29. Nxc4 Qb4 30. Ne3 cxb2 31. Ng2 Rc8 32. Bd3 Qa3 33. Ne1 Bb5 34. Rfxb2 Bxd3 35. Rb3 Qa7 36. Nxd3 1/2-1/2

[Event "Zuerich Seniors op 07th"]
[Site "Zuerich"]
[Date "2009.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Schmid, Pascaline"]
[Result "1-0"]
[ECO "A48"]
[PlyCount "63"]
[EventDate "2009.01.26"]
[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 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 d6 5. h3 c5 6. Nbd2 0-0 7. dxc5 dxc5 8. e4 Nc6 9. Be2 Re8 10. 0-0 e5 11. Bh2 b6 12. Qc2 Bb7 13. Rad1 Qc7 14. Nc4 Nd7 15. Bg3 Bf8 16. Nh2 b5 17. Ne3 c4 18. Nd5 Qd8 19. Ng4 Bg7 20. Qd2 Qc8 21. Bh4 Re6 22. Qe3 f5 23. exf5 gxf5 24. Nh2 Nf8 25. Qg3 Rg6 26. Qe3 f4 27. Qe4 Kh8 28. Bg4 Ne6 29. Nf3 Nb4 30. cxb4 Nc7 31. Bxc8 Rxc8 32. Qf5 1-0

[Event "Ascona Seniors op 8th"]
[Site "Ascona"]
[Date "2009.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Wildi, Markus"]
[Result "1/2-1/2"]
[ECO "D02"]
[PlyCount "46"]
[EventDate "2009.11.02"]
[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 Nf6 2. Nf3 d5 3. Bf4 e6 4. e3 c5 5. c3 Qb6 6. Qb3 Nc6 7. Qxb6 axb6 8. Bd3 c4 9. Bc2 Bd7 10. Nbd2 b5 11. e4 dxe4 12. Nxe4 Nd5 13. Bg3 Be7 14. 0-0 0-0 15. Rfe1 Rfd8 16. Ned2 Bf6 17. Ne5 Nxe5 18. Bxe5 Bxe5 19. Rxe5 Bc6 20. g3 Nf6 21. f3 Rd5 22. Rxd5 exd5 23. Kf2 g6 1/2-1/2

[Event "Ascona Seniors op 8th"]
[Site "Ascona"]
[Date "2009.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Wyss, Christian"]
[Result "1/2-1/2"]
[ECO "D02"]
[PlyCount "79"]
[EventDate "2009.11.02"]
[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. Nf3 Nf6 3. Bf4 c6 4. c3 h6 5. h3 Bf5 6. e3 Nbd7 7. Bd3 Ne4 8. Qc2 e6 9. Nbd2 Nxd2 10. Qxd2 Bxd3 11. Qxd3 Be7 12. 0-0 0-0 13. Rfe1 Nf6 14. Nd2 Qb6 15. Rab1 Rfd8 16. Qc2 Rac8 17. Be5 Nd7 18. Bg3 c5 19. Qb3 Qc6 20. Nf3 c4 21. Qc2 b5 22. e4 dxe4 23. Qxe4 Qxe4 24. Rxe4 Nf6 25. Re2 Nd5 26. a3 a5 27. Rc1 Bf6 28. Kf1 Rd7 29. Rec2 Rb7 30. Ke2 g5 31. Ne5 Kg7 32. Ng4 Bd8 33. Ne3 Rd7 34. Nxd5 Rxd5 35. Kf1 Kg6 36. Re2 Bc7 37. Bxc7 Rxc7 38. Rce1 Rb7 39. Re5 Rbd7 40. Rxd5 1/2-1/2

[Event "Zuerich Seniors op 07th"]
[Site "Zuerich"]
[Date "2009.??.??"]
[Round "?"]
[White "Blaser, Peter"]
[Black "Berchten, Eduard"]
[Result "1/2-1/2"]
[ECO "A07"]
[PlyCount "76"]
[EventDate "2009.01.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5 4. d3 h6 5. 0-0 e6 6. Nbd2 c6 7. Re1 Nbd7 8. e4 dxe4 9. dxe4 Bh7 10. e5 Nd5 11. a3 Bc5 12. c4 Ne7 13. b4 Bb6 14. c5 Bc7 15. Nc4 0-0 16. Bb2 Nd5 17. Rc1 a5 18. Qb3 axb4 19. axb4 Qe7 20. Nd4 Ra7 21. Ra1 Rfa8 22. Nd6 Bxd6 23. cxd6 Qg5 24. f4 Qd8 25. Bxd5 cxd5 26. Rxa7 Rxa7 27. Qc3 Ra8 28. Rc1 Nb6 29. Qc7 Nc4 30. Qxd8+ Rxd8 31. Bc3 Kf8 32. Ra1 Ke8 33. Ra7 Rb8 34. b5 Bd3 35. Kf2 Nb6 36. Ba5 Nc8 37. Bc7 Nxa7 38. Bxb8 Nxb5 1/2-1/2

[Event "Ascona Seniors op 8th"]
[Site "Ascona"]
[Date "2009.??.??"]
[Round "?"]
[White "Broennimann, Peter"]
[Black "Berchten, Eduard"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "1834"]
[PlyCount "81"]
[EventDate "2009.11.02"]
[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 e6 2. Nf3 f5 3. e3 Nf6 4. g3 Be7 5. Bg2 0-0 6. 0-0 c6 7. c4 Ne4 8. b3 Qe8 9. Bb2 d5 10. Nc3 Nd7 11. cxd5 exd5 12. a3 Qh5 13. Ne5 Qh6 14. b4 Bd6 15. Ne2 Re8 16. f4 Be7 17. Nc1 Nxe5 18. dxe5 Be6 19. Ne2 Bd8 20. Nd4 Bf7 21. Nxf5 Qg6 22. Nd4 Bb6 23. Rc1 Bxd4 24. Bxd4 Be6 25. Qc2 Bf5 26. Qe2 Bg4 27. Bf3 Bxf3 28. Rxf3 Qg4 29. Kg2 Qf5 30. b5 Re6 31. bxc6 Rxc6 32. Rxc6 bxc6 33. Qc2 Qd7 34. Rf1 a5 35. Rc1 Ra6 36. Rb1 Qe8 37. Rb7 Ra8 38. Rc7 Rc8 39. Ra7 Ra8 40. Rb7 Rb8 41. Ra7 1/2-1/2

[Event "Ascona Seniors op 8th"]
[Site "Ascona"]
[Date "2009.??.??"]
[Round "?"]
[White "Caduff, Guido"]
[Black "Berchten, Eduard"]
[Result "1/2-1/2"]
[ECO "C02"]
[PlyCount "79"]
[EventDate "2009.11.02"]
[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 e6 2. e4 d5 3. e5 c5 4. Nf3 Qb6 5. c3 Bd7 6. Be2 Bb5 7. 0-0 Bxe2 8. Qxe2 Qa6 9. Qxa6 Nxa6 10. a3 cxd4 11. cxd4 Be7 12. Bg5 h6 13. Bxe7 Nxe7 14. Nc3 0-0 15. Rac1 Rfc8 16. b4 Nc7 17. Rc2 b6 18. Rfc1 Rab8 19. b5 Ne8 20. Kf1 Rc7 21. Ke2 Rbc8 22. Kd3 h5 23. g3 Nf5 24. Nd2 g6 25. f4 Kg7 26. Nf3 Rc4 27. Na2 Rxc2 28. Rxc2 Rxc2 29. Kxc2 Nc7 30. a4 Ne3+ 31. Kc3 Nc4 32. Nb4 Na5 33. Nd2 f6 34. Nb3 Nxb3 35. Kxb3 fxe5 36. fxe5 Kf7 37. Nc6 a6 38. Kb4 axb5 39. axb5 Ke8 40. h4 1/2-1/2

[Event "Zuerich Seniors op 07th"]
[Site "Zuerich"]
[Date "2009.??.??"]
[Round "?"]
[White "Mazzoni, Renzo"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "C02"]
[PlyCount "55"]
[EventDate "2009.01.26"]
[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. e5 c5 4. c3 Qb6 5. Nf3 Bd7 6. a3 a5 7. Bd3 Bb5 8. 0-0 Qa6 9. Bxb5+ Qxb5 10. a4 Qb6 11. Na3 Nc6 12. b3 cxd4 13. cxd4 Be7 14. Bb2 h5 15. Rc1 Nh6 16. Nb5 Nf5 17. Ne1 g6 18. Nd3 Ncxd4 19. Nc7+ Kd7 20. Nxa8 Rxa8 21. Bxd4 Nxd4 22. Rb1 Rc8 23. Nc1 Nc6 24. Re1 Bc5 25. Nd3 Bd4 26. Qf3 Ke7 27. Qf6+ Kf8 28. Qh8+ 1-0

[Event "Ascona Seniors op 8th"]
[Site "Ascona"]
[Date "2009.??.??"]
[Round "?"]
[White "Niderberger, Ferdinand"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "A85"]
[PlyCount "37"]
[EventDate "2009.11.02"]
[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 e6 2. c4 f5 3. Nc3 Nf6 4. e3 Be7 5. Nf3 0-0 6. Bd3 d5 7. 0-0 Ne4 8. Qc2 Nd7 9. cxd5 exd5 10. Nxd5 Bd6 11. Bxe4 fxe4 12. Qxe4 Re8 13. Qc2 c6 14. Nc3 Nf6 15. e4 Bc7 16. Bg5 h6 17. Be3 Be6 18. Rad1 Bg4 19. Qb3+ 1-0

[Event "Ascona Seniors op 8th"]
[Site "Ascona"]
[Date "2009.??.??"]
[Round "?"]
[White "Ruf, Franz"]
[Black "Berchten, Eduard"]
[Result "1/2-1/2"]
[ECO "C01"]
[PlyCount "46"]
[EventDate "2009.11.02"]
[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. exd5 exd5 4. Nf3 Bd6 5. h3 h6 6. Bd3 Qf6 7. 0-0 Bf5 8. c3 Bxd3 9. Qxd3 c6 10. Re1+ Ne7 11. Ne5 0-0 12. Nd2 Bxe5 13. dxe5 Qg6 14. Qxg6 Nxg6 15. Nf1 Re8 16. f4 Na6 17. Be3 b6 18. Rad1 Nc7 19. Ng3 Ne7 20. b4 Kh7 21. a4 g6 22. h4 Rg8 23. Kf2 Nf5 1/2-1/2

[Event "Zuerich Seniors op 06th"]
[Site "Zuerich"]
[Date "2008.??.??"]
[Round "?"]
[White "Barz, Norbert"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "1634"]
[PlyCount "77"]
[EventDate "2008.01.28"]
[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 f5 2. Bf4 Nf6 3. Nf3 e6 4. e3 Be7 5. Nbd2 d6 6. h3 0-0 7. Be2 Qe8 8. c3 c6 9. Qc2 h6 10. Bh2 Qg6 11. Rg1 Ne4 12. Bd3 d5 13. Ne5 Qh5 14. Be2 Qe8 15. Rf1 Nd7 16. Nxd7 Bxd7 17. Nf3 Bf6 18. Be5 Qe7 19. Bxf6 gxf6 20. 0-0-0 Kh8 21. g4 Qh7 22. Bd3 Rg8 23. Rg1 Rg7 24. Nh4 Rag8 25. f3 Nd6 26. Qh2 Nf7 27. Rg3 h5 28. Rdg1 Qh6 29. Kd2 f4 30. exf4 Qxf4+ 31. Kc2 Ng5 32. Qe2 Nh7 33. Bxh7 Kxh7 34. Qd2 Qxd2+ 35. Kxd2 f5 36. Ke3 Rf8 37. f4 hxg4 38. Nf3 Be8 39. Ng5+ 1-0

[Event "Ascona Seniors op 7th"]
[Site "Ascona"]
[Date "2008.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Abel, Ruth"]
[Result "1/2-1/2"]
[ECO "D02"]
[PlyCount "55"]
[EventDate "2008.11.03"]
[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. Nf3 e6 3. Bf4 Nf6 4. c3 Nc6 5. h3 Be7 6. Nbd2 0-0 7. e3 h6 8. Bd3 Bd7 9. Qe2 a6 10. e4 dxe4 11. Nxe4 Nxe4 12. Qxe4 f5 13. Qe3 Bf6 14. Rd1 Re8 15. 0-0 b5 16. Rfe1 Rc8 17. Bc2 Na5 18. Qd3 Nc4 19. Rb1 Bc6 20. Nd2 Nxd2 21. Qxd2 Be4 22. Re3 Bxc2 23. Qxc2 c5 24. dxc5 Rxc5 25. Rd1 Rd5 26. Rxd5 exd5 27. Qe2 Rxe3 28. Qxe3 1/2-1/2

[Event "Zuerich Seniors op 06th"]
[Site "Zuerich"]
[Date "2008.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Abel, Ruth"]
[Result "1/2-1/2"]
[ECO "D02"]
[PlyCount "39"]
[EventDate "2008.01.28"]
[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. Nf3 Nf6 3. Bf4 Nc6 4. c3 Bd7 5. h3 e6 6. Nbd2 Be7 7. e3 0-0 8. Bd3 h6 9. Qe2 a6 10. 0-0 Nh7 11. e4 Re8 12. Rac1 b5 13. b4 Ng5 14. e5 Rf8 15. Rfe1 f5 16. exf6 Bxf6 17. Ne5 Nxe5 18. Bxe5 Bxe5 19. Qxe5 Qf6 20. Qxf6 1/2-1/2

[Event "Zuerich Seniors op 06th"]
[Site "Zuerich"]
[Date "2008.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Brunner, Oscar"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "63"]
[EventDate "2008.01.28"]
[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 c6 3. c3 Bf5 4. Nf3 h6 5. Nbd2 e6 6. e3 Bd6 7. Bxd6 Qxd6 8. Be2 Nd7 9. Qb3 Nb6 10. 0-0 Nf6 11. Ne5 0-0 12. Qd1 Nbd7 13. Ndf3 a6 14. Nd3 Ne4 15. Nh4 Bh7 16. f3 Nef6 17. g4 g5 18. Ng2 e5 19. dxe5 Nxe5 20. f4 Nxd3 21. Bxd3 Bxd3 22. Qxd3 Nxg4 23. h3 Nf6 24. Rad1 b5 25. fxg5 hxg5 26. Qf5 Ne4 27. Qxe4 Qg3 28. Qf3 Qd6 29. Qf6 Qg3 30. Rf3 Qc7 31. Qxg5+ Kh7 32. Rf4 1-0

[Event "Ascona Seniors op 7th"]
[Site "Ascona"]
[Date "2008.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Eigenmann, Louis"]
[Result "1/2-1/2"]
[ECO "A48"]
[PlyCount "79"]
[EventDate "2008.11.03"]
[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 Nf6 2. Nf3 g6 3. Bf4 d6 4. h3 Bg7 5. e3 0-0 6. Bd3 b6 7. c3 Bb7 8. Nbd2 Nbd7 9. 0-0 c5 10. Re1 d5 11. Ne5 c4 12. Bc2 Ne4 13. Nxd7 Qxd7 14. f3 Nf6 15. e4 Nh5 16. Bh2 e6 17. e5 Bh8 18. g4 Ng7 19. f4 Qe7 20. Nf3 Bc8 21. Qd2 b5 22. Kh1 a5 23. Qg2 b4 24. Rac1 a4 25. Ra1 Bd7 26. Qd2 b3 27. axb3 axb3 28. Rxa8 Rxa8 29. Bb1 Ra1 30. Bg3 Qd8 31. Bh4 Qa8 32. Kh2 Ne8 33. Qg2 Bg7 34. Rg1 Bh6 35. Bg5 Bg7 36. Qg3 h6 37. Qh4 hxg5 38. Nxg5 Kf8 39. Nh7+ Kg8 40. Ng5 1/2-1/2

[Event "Zuerich Seniors op 06th"]
[Site "Zuerich"]
[Date "2008.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Joerger, Werner"]
[Result "1/2-1/2"]
[ECO "D02"]
[PlyCount "49"]
[EventDate "2008.01.28"]
[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. Nf3 Nf6 3. Bf4 e6 4. c3 Bd6 5. e3 Bxf4 6. exf4 0-0 7. Bd3 h6 8. Nbd2 Nbd7 9. Qe2 c5 10. Rc1 c4 11. Bb1 b5 12. Ne5 Bb7 13. 0-0 Qb6 14. Nxd7 Nxd7 15. Nf3 Nf6 16. Ne5 a5 17. Qc2 Qd8 18. f3 h5 19. g4 hxg4 20. Nxg4 g6 21. Kh1 Kg7 22. Rg1 Rh8 23. Ne5 Qe8 24. Rce1 Rh5 25. Rg5 1/2-1/2

[Event "Ascona Seniors op 7th"]
[Site "Ascona"]
[Date "2008.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Soltermann, Juerg"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "100"]
[EventDate "2008.11.03"]
[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. Nf3 g6 3. Bf4 Bg7 4. c3 Nf6 5. h3 b6 6. Nbd2 0-0 7. e3 Bb7 8. Bd3 Nbd7 9. 0-0 c5 10. Re1 Rc8 11. a4 c4 12. Bc2 a6 13. e4 Nh5 14. Bh2 Bh6 15. e5 e6 16. g3 f6 17. exf6 Qxf6 18. Ne5 Nxe5 19. Rxe5 Qxf2+ 20. Kh1 Bxd2 21. Re2 Nxg3+ 22. Bxg3 Qxg3 23. Rxd2 Qxh3+ 24. Kg1 Rf3 25. Rh2 Rg3+ 26. Kh1 Qg4 27. Qxg4 Rxg4 28. Rf1 Rc7 29. Rf6 Re7 30. Rhf2 Kg7 31. Kh2 Rh4+ 32. Kg3 Rh1 33. Kg2 Re1 34. Kh2 b5 35. axb5 axb5 36. R6f3 e5 37. dxe5 R1xe5 38. Rf6 R5e6 39. R6f4 Re2 40. Bd1 Rxf2+ 41. Rxf2 Bc8 42. Bf3 Re5 43. Rd2 Be6 44. Kg3 Kf6 45. Rh2 h5 46. Rh4 Kg5 47. Rd4 Kh6 48. Kf4 Rf5+ 49. Kg3 g5 50. Kf2 g4 0-1

[Event "Zuerich Seniors op 06th"]
[Site "Zuerich"]
[Date "2008.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Stieger, Heinz"]
[Result "1/2-1/2"]
[ECO "D02"]
[BlackElo "1530"]
[PlyCount "62"]
[EventDate "2008.01.28"]
[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 Nf6 3. Nf3 Nc6 4. c3 e6 5. Nbd2 a6 6. h3 b5 7. e3 Be7 8. Bd3 Nd7 9. Qe2 0-0 10. 0-0 f5 11. Bh2 Nf6 12. Ne5 Bd7 13. Rac1 Bd6 14. Ndf3 Ne4 15. Nxc6 Bxc6 16. Ne5 Be8 17. f3 Nf6 18. e4 dxe4 19. fxe4 fxe4 20. Bxe4 Nxe4 21. Rxf8+ Kxf8 22. Qxe4 Kg8 23. Qg4 Qe7 24. Rf1 Bxe5 25. Bxe5 Bg6 26. Rf2 c6 27. h4 Bf5 28. Qg3 h5 29. Bd6 Qf7 30. Qf3 Rc8 31. g3 g6 1/2-1/2

[Event "Ascona Seniors op 7th"]
[Site "Ascona"]
[Date "2008.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Toller, Clotin"]
[Result "1/2-1/2"]
[ECO "D02"]
[PlyCount "89"]
[EventDate "2008.11.03"]
[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. Nf3 Nf6 3. Bf4 e6 4. c3 Bd6 5. e3 Bxf4 6. exf4 0-0 7. Bd3 h6 8. Nbd2 Nc6 9. Qe2 Re8 10. Ne5 Nxe5 11. fxe5 Nh7 12. Nf3 Rf8 13. Bxh7+ Kxh7 14. g4 Bd7 15. h4 f6 16. 0-0-0 Be8 17. h5 Qe7 18. Rdf1 a6 19. Qd3+ Kg8 20. Nh4 Rd8 21. f4 fxe5 22. fxe5 Rxf1+ 23. Qxf1 Qg5+ 24. Kb1 Qxg4 25. Nf3 Bxh5 26. Nd2 Rf8 27. Qe1 Bg6+ 28. Ka1 Bh7 29. Rg1 Qh3 30. Rg3 Qh5 31. Qg1 Rf7 32. Rg2 Qf5 33. a3 g5 34. Rh2 Qg6 35. Qd1 Rf4 36. Qa4 c6 37. Qd1 Kg7 38. Qb3 Qf7 39. Ka2 Bd3 40. Qd1 Kh7 41. Qg1 g4 42. Qe3 Bg6 43. Qe1 h5 44. Qh4 Kh6 45. Qg3 1/2-1/2

[Event "Zuerich Seniors op 06th"]
[Site "Zuerich"]
[Date "2008.??.??"]
[Round "?"]
[White "Blaser, Peter"]
[Black "Berchten, Eduard"]
[Result "1/2-1/2"]
[ECO "A80"]
[PlyCount "48"]
[EventDate "2008.01.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 f5 2. d4 Nf6 3. e3 g6 4. Bc4 d6 5. 0-0 Ne4 6. Nbd2 c6 7. Bb3 e6 8. c4 Bg7 9. Qc2 Nxd2 10. Bxd2 0-0 11. Bc3 Re8 12. Rad1 d5 13. Rfe1 Na6 14. cxd5 exd5 15. Nd2 Kh8 16. f3 Nc7 17. Nf1 Be6 18. e4 fxe4 19. fxe4 dxe4 20. Bxe6 Rxe6 21. Rxe4 Rxe4 22. Qxe4 Qe8 23. Ng3 Qe6 24. b3 Re8 1/2-1/2

[Event "Ascona Seniors op 7th"]
[Site "Ascona"]
[Date "2008.??.??"]
[Round "?"]
[White "Broennimann, Peter"]
[Black "Berchten, Eduard"]
[Result "1/2-1/2"]
[ECO "A12"]
[PlyCount "53"]
[EventDate "2008.11.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Bf5 3. Bb2 Nf6 4. d3 Nbd7 5. Nbd2 h6 6. g3 e6 7. Bg2 c6 8. 0-0 Bd6 9. c4 0-0 10. cxd5 exd5 11. a3 Re8 12. b4 Qc7 13. Re1 Re7 14. Rc1 a6 15. Nh4 Bh7 16. e4 dxe4 17. Nxe4 Nxe4 18. Bxe4 Rae8 19. Bxh7+ Kxh7 20. Rxe7 Bxe7 21. Nf5 Bf6 22. Bxf6 Nxf6 23. Qd2 Qd7 24. Ne3 Rd8 25. Rd1 Kg8 26. Qc2 Qe6 27. Qc5 1/2-1/2

[Event "Ascona Seniors op 7th"]
[Site "Ascona"]
[Date "2008.??.??"]
[Round "?"]
[White "Deller, Henri"]
[Black "Berchten, Eduard"]
[Result "1/2-1/2"]
[ECO "A03"]
[PlyCount "70"]
[EventDate "2008.11.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 Nf6 3. e3 Bf5 4. Be2 c6 5. 0-0 h6 6. d3 Nbd7 7. Ne5 e6 8. Qe1 Be7 9. Bd1 0-0 10. Nc3 Qe8 11. e4 dxe4 12. dxe4 Nxe5 13. fxe5 Bxe4 14. exf6 Bc5+ 15. Be3 Bb4 16. Qg3 Bg6 17. Bd4 Qd8 18. Be5 Kh7 19. Bh5 gxf6 20. Bxf6 Be7 21. Bxg6+ fxg6 22. Bxe7 Qxe7 23. Qe3 Kg7 24. Rxf8 Qxf8 25. Qxe6 Re8 26. Qd7+ Re7 27. Qd4+ Kh7 28. Qf2 Qe8 29. Rd1 a6 30. Kh1 Kg7 31. Qd2 Rf7 32. Qe1 Qf8 33. Kg1 Qc5+ 34. Kh1 Qf5 35. Qg1 Qxc2 1/2-1/2

[Event "Ascona Seniors op 7th"]
[Site "Ascona"]
[Date "2008.??.??"]
[Round "?"]
[White "Ingold, Willi"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1801"]
[PlyCount "59"]
[EventDate "2008.11.03"]
[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. Bd3 dxe4 4. Bxe4 Nc6 5. c3 Bd7 6. Nf3 Nf6 7. Bg5 Be7 8. Bxf6 Bxf6 9. Qc2 g6 10. 0-0 0-0 11. Nbd2 Bg7 12. Qb3 Rb8 13. Rac1 Qc8 14. Nc4 Re8 15. Nce5 Nxe5 16. Nxe5 c6 17. f4 f6 18. Nc4 Qc7 19. Qc2 e5 20. dxe5 fxe5 21. f5 gxf5 22. Bxf5 Bxf5 23. Rxf5 Rbd8 24. Rcf1 Rd7 25. Qe4 Rf8 26. Rxf8+ Bxf8 27. Nxe5 Rg7 28. Qc4+ Kh8 29. Rxf8+ Rg8 30. Qxg8# 1-0

[Event "Zuerich Seniors op 06th"]
[Site "Zuerich"]
[Date "2008.??.??"]
[Round "?"]
[White "Lincke, Paul"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "B40"]
[PlyCount "123"]
[EventDate "2008.01.28"]
[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 c5 2. c4 e6 3. Nf3 b6 4. d3 d6 5. h3 Nf6 6. Nc3 Bb7 7. Be2 Qc7 8. Bf4 Be7 9. 0-0 Nbd7 10. Re1 a6 11. a4 0-0 12. b3 Rad8 13. Nh2 Qc6 14. Bf3 Qc8 15. Ra2 Ne8 16. Be3 Bf6 17. Ne2 g6 18. Ng4 Bg7 19. Qc1 Ne5 20. Nxe5 Bxe5 21. d4 cxd4 22. Nxd4 Qa8 23. Qc2 Rc8 24. Ne2 Rc6 25. Bd4 Qb8 26. Bxe5 dxe5 27. Qc1 Nf6 28. Ng3 a5 29. Rd1 Rd8 30. Rxd8+ Qxd8 31. Qg5 h6 32. Qxh6 Rd6 33. Qg5 Rd4 34. Qxe5 Bxe4 35. Nxe4 Nxe4 36. Bxe4 Rd1+ 37. Kh2 Re1 38. f3 Qd1 39. Qb8+ Kg7 40. Qxb6 Rh1+ 41. Kg3 Rf1 42. Qe3 Qd6+ 43. Qf4 e5 44. Qe3 Rd1 45. c5 Qc7 46. Rc2 f5 47. Qe2 Rd4 48. Ba8 e4+ 49. f4 g5 50. Qf2 gxf4+ 51. Kh2 f3+ 52. Qg3+ Qxg3+ 53. Kxg3 fxg2 54. Kxg2 Kf6 55. c6 e3 56. c7 Rd2+ 57. Rxd2 exd2 58. c8Q d1Q 59. Qc3+ Kg5 60. Qg7+ Kh4 61. Qg3+ Kh5 62. Bf3+ 1-0

[Event "Zuerich Seniors op 06th"]
[Site "Zuerich"]
[Date "2008.??.??"]
[Round "?"]
[White "Seewald, Klaus"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "A85"]
[PlyCount "39"]
[EventDate "2008.01.28"]
[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 f5 2. c4 Nf6 3. Nc3 e6 4. Bg5 Be7 5. Nf3 0-0 6. e3 d5 7. Bd3 c6 8. 0-0 Ne4 9. Bxe7 Qxe7 10. Qc2 Nd7 11. Rac1 Qf6 12. cxd5 exd5 13. Rfe1 Re8 14. b4 Qg6 15. b5 Rf8 16. bxc6 bxc6 17. Na4 Ng5 18. Nxg5 Qxg5 19. Qxc6 Rf6 20. Qxd5+ 1-0

[Event "Ascona Seniors op 7th"]
[Site "Ascona"]
[Date "2008.??.??"]
[Round "?"]
[White "Utzinger, Erich"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "C02"]
[PlyCount "55"]
[EventDate "2008.11.03"]
[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. e5 c5 4. c3 Qb6 5. Nf3 Bd7 6. Be2 Bb5 7. 0-0 Bxe2 8. Qxe2 Qa6 9. Qe3 b6 10. Nbd2 Nc6 11. a3 cxd4 12. cxd4 Nge7 13. b4 Nf5 14. Qf4 Be7 15. g4 Nh6 16. Qg3 Qb7 17. Nb3 Rc8 18. Qh3 Ng8 19. Be3 f6 20. exf6 gxf6 21. Qh5+ Kd7 22. g5 fxg5 23. Bxg5 Nf6 24. Bxf6 Rcf8 25. Bxe7 Nxe7 26. Ne5+ Kc8 27. Kh1 Rf5 28. Qh6 1-0

[Event "Ascona Seniors op 6th"]
[Site "Ascona"]
[Date "2007.11.05"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Luethi, Marcel"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "90"]
[EventDate "2007.11.05"]
[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 Nf6 3. Nf3 e6 4. c3 c5 5. e3 Nc6 6. Bd3 Bd7 7. h3 Be7 8. Nbd2 0-0 9. 0-0 c4 10. Bc2 b5 11. e4 dxe4 12. Nxe4 Nxe4 13. Bxe4 Rc8 14. Re1 a5 15. Rc1 Qb6 16. Bb1 Rfe8 17. Qc2 g6 18. Qd2 Bf8 19. Bh6 Ne7 20. Bxf8 Rxf8 21. Re5 Kg7 22. Rce1 Nd5 23. a3 Rb8 24. h4 b4 25. R5e2 bxc3 26. bxc3 Qb3 27. Rc1 Qxa3 28. Ba2 Bb5 29. Ne5 Rfc8 30. Ng4 Qf8 31. g3 Kh8 32. Qg5 h5 33. Nf6 Nxf6 34. Qxf6+ Qg7 35. Qg5 f6 36. Qd2 Bd7 37. Rb1 Rxb1+ 38. Bxb1 a4 39. f4 f5 40. Re1 Qf8 41. Ba2 Qd6 42. Rb1 Qd5 43. Kh2 Bc6 44. Re1 a3 45. Qf2 Rb8 0-1

[Event "Ascona Seniors op 6th"]
[Site "Ascona"]
[Date "2007.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Bachmann, Werner"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "99"]
[EventDate "2007.11.05"]
[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 Nf6 2. Bf4 d5 3. Nf3 e6 4. c3 c5 5. e3 Bd6 6. Bxd6 Qxd6 7. Bd3 Nbd7 8. Nbd2 0-0 9. 0-0 Re8 10. e4 e5 11. dxe5 Nxe5 12. Nxe5 Rxe5 13. f3 Bd7 14. Qe2 c4 15. Bc2 Rae8 16. Rad1 Rh5 17. h3 b5 18. Rf2 Qg3 19. Nf1 Qc7 20. Qd2 Bc6 21. Re2 dxe4 22. fxe4 Rhe5 23. Qf4 Nh5 24. Qf3 f5 25. Qxh5 Qb6+ 26. Kh1 R8e6 27. Qh4 fxe4 28. Rd8+ Re8 29. Rxe8+ Rxe8 30. Bxe4 Bxe4 31. Rxe4 Rf8 32. Rf4 Re8 33. Qf2 Qxf2 34. Rxf2 a5 35. g4 Re5 36. Kg2 g6 37. Nd2 Re3 38. Nf3 b4 39. cxb4 axb4 40. Rc2 b3 41. axb3 cxb3 42. Rd2 Re8 43. Nd4 Rb8 44. Kf3 Rf8+ 45. Ke3 Rb8 46. Rd3 Re8+ 47. Kd2 Rd8 48. Nxb3 Rf8 49. Nd4 Rf2+ 50. Kc3 1-0

[Event "Zuerich Seniors op 05th"]
[Site "Zuerich"]
[Date "2007.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Barz, Norbert"]
[Result "0-1"]
[ECO "D00"]
[BlackElo "1745"]
[PlyCount "86"]
[EventDate "2007.01.22"]
[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 c6 3. c3 g6 4. Nf3 Bg7 5. e3 Bf5 6. Nbd2 Nf6 7. h3 Nbd7 8. Be2 0-0 9. 0-0 Re8 10. Ne5 Ne4 11. f3 Nxd2 12. Qxd2 Nxe5 13. Bxe5 f6 14. Bh2 e5 15. g4 Bd7 16. dxe5 fxe5 17. e4 Qb6+ 18. Kg2 Be6 19. Bg1 Qc7 20. Bd3 Rad8 21. Qc2 Bh6 22. b3 dxe4 23. fxe4 Rd7 24. Rf3 Red8 25. Raf1 b6 26. Rd1 c5 27. c4 Bf4 28. Bh2 Bxh2 29. Kxh2 Rd4 30. Qe2 Bc8 31. Bc2 Bb7 32. Re3 Bc6 33. Kh1 Qb7 34. Kh2 Qc7 35. Kg1 Qd6 36. Red3 Qe6 37. Rxd4 exd4 38. Re1 Re8 39. Rf1 Qe5 40. Qf3 Bxe4 41. Bxe4 Qxe4 42. Qxe4 Rxe4 43. Rf2 Re3 0-1

[Event "Zuerich Seniors op 05th"]
[Site "Zuerich"]
[Date "2007.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Brunner, Oscar"]
[Result "1/2-1/2"]
[ECO "D02"]
[BlackElo "1494"]
[PlyCount "60"]
[EventDate "2007.01.22"]
[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 c6 3. Nf3 h6 4. c3 Bf5 5. Nbd2 e6 6. e3 Bd6 7. Bxd6 Qxd6 8. Be2 Nf6 9. Ne5 Nbd7 10. f4 Ne4 11. Nxe4 Bxe4 12. Bf3 Bh7 13. Nxd7 Qxd7 14. 0-0 0-0 15. Qd2 f5 16. Qf2 Kh8 17. Qh4 Qd8 18. Qxd8 Raxd8 19. Be2 b5 20. a4 b4 21. Rfc1 bxc3 22. Rxc3 Rb8 23. b3 Rfc8 24. Bd1 a5 25. Rac1 Rb6 26. Rc5 Bg8 27. Rxa5 g5 28. g3 Rc7 29. Rac5 Ra6 30. Kf2 Kg7 1/2-1/2

[Event "Ascona Seniors op 6th"]
[Site "Ascona"]
[Date "2007.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Hattich, Alfred"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "100"]
[EventDate "2007.11.05"]
[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 Nf6 3. Nf3 e6 4. c3 Be7 5. e3 Bd7 6. Bd3 c5 7. 0-0 c4 8. Bc2 Nc6 9. Nbd2 Nh5 10. Re1 Nxf4 11. exf4 0-0 12. Ne5 Nxe5 13. fxe5 b5 14. Nf3 a5 15. a3 b4 16. axb4 axb4 17. Qb1 g6 18. Bd1 Qb6 19. Be2 b3 20. Qc1 Ra2 21. Rb1 Rfa8 22. Qh6 Qd8 23. h4 Qf8 24. Qd2 Qg7 25. g3 Kh8 26. Kg2 f5 27. Rh1 Kg8 28. Qf4 h5 29. Ng5 Bxg5 30. Qxg5 Re8 31. Qd2 Kh7 32. f4 Qh6 33. Bf3 Rf8 34. Qe2 Be8 35. Kf2 Qg7 36. Qd2 Qe7 37. Qe2 Qa7 38. Rhe1 Bf7 39. Qf1 Ra8 40. Ke3 Qb6 41. Qe2 R8a5 42. Qf1 Qa6 43. Red1 R5a4 44. Re1 Qa5 45. Red1 Rxb2 46. Rxb2 Qxc3+ 47. Ke2 Qxb2+ 48. Rd2 Qa1 49. Qxa1 Rxa1 50. Rb2 Ra2 0-1

[Event "Ascona Seniors op 6th"]
[Site "Ascona"]
[Date "2007.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Ingold, Rosel"]
[Result "1/2-1/2"]
[ECO "D02"]
[PlyCount "143"]
[EventDate "2007.11.05"]
[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 Nf6 2. Bf4 d5 3. Nf3 e6 4. c3 Be7 5. h3 0-0 6. e3 Nbd7 7. Bd3 Nh5 8. Bh2 g6 9. Nbd2 c5 10. 0-0 c4 11. Bc2 b6 12. e4 Bb7 13. e5 Ng7 14. b3 b5 15. bxc4 bxc4 16. Rb1 Ba6 17. a4 Qa5 18. Bf4 Qxc3 19. Bg5 Bxg5 20. Nxg5 Qxd4 21. Ngf3 Qc5 22. Re1 Rab8 23. Rxb8 Rxb8 24. Qa1 Qc7 25. Qa3 Qd8 26. Nd4 Qf8 27. Qc3 Bc8 28. N2f3 Rb7 29. Rb1 Rxb1+ 30. Bxb1 Nb6 31. Bc2 Bd7 32. Nb5 a6 33. a5 Na8 34. Nd6 Qb8 35. Qe3 Nf5 36. Bxf5 exf5 37. Ng5 Be6 38. Qg3 Qf8 39. Nxh7 Kxh7 40. Qh4+ Qh6 41. Qd8 Qc1+ 42. Kh2 Qf4+ 43. Kg1 Qxe5 44. Nxf7 Bxf7 45. Qxa8 c3 46. Qxa6 Qe1+ 47. Kh2 c2 48. Qb7 Qe6 49. Qc7 Kg7 50. Qxc2 Qe5+ 51. g3 d4 52. a6 Bd5 53. a7 Kf6 54. Qb1 Qe4 55. Qb6+ Qe6 56. Qxd4+ Qe5 57. Qb6+ Qe6 58. Qd4+ Ke7 59. Qg7+ Qf7 60. Qe5+ Kd7 61. Qb8 Qe8 62. Qxe8+ Kxe8 63. f4 Kf7 64. Kg1 Kg7 65. Kf2 Kh6 66. g4 Be4 67. Kg3 Bc6 68. h4 Be4 69. h5 Bc6 70. g5+ Kxh5 71. Kh3 Be4 72. Kg3 1/2-1/2

[Event "Ascona Seniors op 6th"]
[Site "Ascona"]
[Date "2007.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Kirchgraber, Bruno"]
[Result "1/2-1/2"]
[ECO "D02"]
[PlyCount "59"]
[EventDate "2007.11.05"]
[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. Nf3 c5 4. e3 c4 5. c3 Nf6 6. Nbd2 Bd6 7. Bxd6 Qxd6 8. Ne5 0-0 9. Be2 b5 10. f4 Ne4 11. Bf3 Nxd2 12. Qxd2 f6 13. Ng4 Nc6 14. 0-0 h5 15. Nf2 g6 16. e4 dxe4 17. Nxe4 Qc7 18. Rae1 Bb7 19. Bd1 Rad8 20. Qe3 Ne7 21. Nc5 Bd5 22. Qg3 Kf7 23. Bc2 Rg8 24. Qh3 Nf5 25. Bxf5 exf5 26. Qe3 Rde8 27. Qd2 Qc6 28. g3 g5 29. Rxe8 Rxe8 30. fxg5 1/2-1/2

[Event "Ascona Seniors op 6th"]
[Site "Ascona"]
[Date "2007.??.??"]
[Round "?"]
[White "Drexel, Bruno"]
[Black "Berchten, Eduard"]
[Result "1/2-1/2"]
[ECO "B41"]
[PlyCount "64"]
[EventDate "2007.11.05"]
[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 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 d6 5. Be2 a6 6. c4 Nf6 7. Nc3 b6 8. f4 g6 9. Be3 Bb7 10. Bf3 Qc7 11. Qe2 Nc6 12. 0-0 Bg7 13. Rad1 0-0 14. b3 Rfd8 15. Qf2 Rab8 16. Nxc6 Bxc6 17. Ne2 b5 18. cxb5 axb5 19. Rc1 Qb7 20. e5 Bxf3 21. Qxf3 Qxf3 22. Rxf3 dxe5 23. fxe5 Nd5 24. Bd4 Rbc8 25. Rcf1 Rd7 26. Ng3 b4 27. Ne4 h6 28. h4 Bf8 29. g4 Rc2 30. R1f2 Rxf2 31. Kxf2 Rc7 32. Kg3 Rc2 1/2-1/2

[Event "Ascona Seniors op 6th"]
[Site "Ascona"]
[Date "2007.??.??"]
[Round "?"]
[White "Lippuner, Hans"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "A83"]
[PlyCount "23"]
[EventDate "2007.11.05"]
[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 f5 2. Nf3 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Bxf6 Bxf6 6. e4 fxe4 7. Nxe4 Be7 8. Ne5 d6 9. Qh5+ g6 10. Nxg6 d5 11. Ne5+ Kf8 12. Qf7# 1-0

[Event "Zuerich Seniors op 05th"]
[Site "Zuerich"]
[Date "2007.??.??"]
[Round "?"]
[White "Meyer, Karl"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "A85"]
[PlyCount "69"]
[EventDate "2007.01.22"]
[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 f5 2. c4 Nf6 3. Nc3 e6 4. a3 d5 5. cxd5 exd5 6. Bg5 Be7 7. Nf3 0-0 8. e3 c6 9. Bd3 Ne4 10. Bxe7 Qxe7 11. 0-0 Nd7 12. h3 Qf7 13. Ne2 g5 14. Nh2 Ndf6 15. f3 Nd6 16. b3 Re8 17. Qd2 Bd7 18. Rae1 Qg6 19. Kh1 Qg7 20. Ng1 Kh8 21. Rf2 b5 22. Ne2 Re7 23. Ng3 Rae8 24. Ngf1 f4 25. Rfe2 Nh5 26. Kg1 Ng3 27. Nxg3 fxg3 28. Nf1 Qh6 29. Nxg3 Qh4 30. Nf1 Rf7 31. Nh2 Bf5 32. Bxf5 Nxf5 33. Ng4 Rf6 34. Ne5 Qh6 35. Ng4 1-0

[Event "Ascona Seniors op 6th"]
[Site "Ascona"]
[Date "2007.??.??"]
[Round "?"]
[White "Niderberger, Ferdinand"]
[Black "Berchten, Eduard"]
[Result "1/2-1/2"]
[ECO "A85"]
[PlyCount "76"]
[EventDate "2007.11.05"]
[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 f5 2. c4 Nf6 3. Nc3 e6 4. Nf3 Be7 5. e3 0-0 6. Be2 d5 7. 0-0 c6 8. Re1 Ne4 9. Qc2 Nd7 10. a3 Qe8 11. c5 Bf6 12. Rf1 e5 13. b4 Qg6 14. dxe5 Nxe5 15. Bb2 Re8 16. Nxe4 fxe4 17. Ne1 Bf5 18. Rd1 Rad8 19. Bc1 Ng4 20. Bb2 Be5 21. Bxe5 Rxe5 22. h3 Nf6 23. Kh2 Qh6 24. Rh1 g5 25. Kg1 Qg6 26. g4 Bc8 27. Rd4 Rde8 28. Qd1 Kh8 29. Ng2 R8e7 30. h4 Qg8 31. h5 h6 32. Rh3 Bd7 33. Rg3 Rf7 34. Qa4 a6 35. Rd2 Qc8 36. Qd1 Re8 37. Qa1 Kg8 38. Qd1 Ref8 1/2-1/2

[Event "Zuerich Seniors op 05th"]
[Site "Zuerich"]
[Date "2007.??.??"]
[Round "?"]
[White "Stieger, Heinz"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "B41"]
[WhiteElo "1530"]
[PlyCount "55"]
[EventDate "2007.01.22"]
[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 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nf3 b6 6. Bd3 Bb7 7. e5 d5 8. 0-0 Ne7 9. c3 Nbc6 10. Bg5 Qc7 11. Bf4 g6 12. Re1 Bg7 13. Nbd2 0-0 14. Nb3 Rac8 15. Rc1 Rfd8 16. Nbd4 Qb8 17. Qd2 Re8 18. a4 Qa8 19. b4 Na7 20. b5 a5 21. Bh6 Qb8 22. Bxg7 Kxg7 23. Qg5 Ng8 24. Qh4 h6 25. Qg4 Kf8 26. Bxg6 Re7 27. Bh7 f5 28. Qxg8# 1-0

[Event "Ascona Seniors op 6th"]
[Site "Ascona"]
[Date "2007.??.??"]
[Round "?"]
[White "Treichler, Peter"]
[Black "Berchten, Eduard"]
[Result "1/2-1/2"]
[ECO "A84"]
[PlyCount "56"]
[EventDate "2007.11.05"]
[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 f5 2. c4 Nf6 3. Bg5 e6 4. Bxf6 Qxf6 5. e3 Be7 6. g3 0-0 7. c5 c6 8. Nc3 d5 9. Na4 e5 10. dxe5 Qxe5 11. Nf3 Qf6 12. Be2 Nd7 13. Rc1 Qh6 14. Bf1 Nf6 15. Ne5 Ne4 16. Bg2 Bf6 17. Nd3 Bd7 18. 0-0 Rae8 19. b4 Bg5 20. h4 Nxf2 21. Nxf2 Bxe3 22. Rc3 f4 23. Qf3 g5 24. hxg5 Qxg5 25. gxf4 Rxf4 26. Rxe3 Rxf3 27. Rxf3 Qd2 28. Nc3 Kh8 1/2-1/2

[Event "Adelboden Seniors op 4th"]
[Site "Adelboden"]
[Date "2006.06.28"]
[Round "9"]
[White "Hemmi, Hans"]
[Black "Berchten, Eduard"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "1539"]
[BlackElo "1466"]
[PlyCount "124"]
[EventDate "2006.06.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 f5 2. e3 Nf6 3. Bd3 e6 4. Nf3 Be7 5. 0-0 0-0 6. c4 d5 7. c5 c6 8. b4 Ne4 9. Bb2 Qe8 10. Ne5 Nd7 11. Nd2 Bf6 12. Ndf3 Qh5 13. Be2 g5 14. Nxd7 Bxd7 15. Ne5 Qe8 16. f3 Qe7 17. fxe4 fxe4 18. Ng4 Bg7 19. Bc3 h5 20. Ne5 g4 21. Be1 Be8 22. Rxf8+ Qxf8 23. Bh4 Qf5 24. Bg3 Bh6 25. Qd2 Rc8 26. Bh4 Rc7 27. Bd8 Rg7 28. Rf1 Qh7 29. Bh4 Bg5 30. Bxg5 Rxg5 31. Qe1 Rf5 32. Qd1 Qg7 33. Bxg4 hxg4 34. Qxg4 Qxg4 35. Nxg4 Kg7 36. Nf2 Bh5 37. g4 Rg5 38. h3 Bf7 39. Kg2 Rg6 40. Nh1 Rf6 41. Rxf6 Kxf6 42. h4 Kg7 43. Nf2 Kg6 44. Nh3 Kf6 45. Kg3 e5 46. a3 exd4 47. exd4 Be6 48. g5+ Kg6 49. Nf4+ Kf5 50. g6 Kf6 51. h5 Bf5 52. Kf2 Kg5 53. Ke3 Kh6 54. a4 Bg4 55. Kf2 Bd1 56. a5 Bg4 57. Ke3 a6 58. Kf2 Bf5 59. Kg3 Bd7 60. Kh4 Bf5 61. Ng2 Be6 62. Ne3 Bd7 1/2-1/2

[Event "Adelboden Seniors op 4th"]
[Site "Adelboden"]
[Date "2006.06.27"]
[Round "8"]
[White "Berchten, Eduard"]
[Black "Deller, Henri"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "1466"]
[BlackElo "1422"]
[PlyCount "71"]
[EventDate "2006.06.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. Nf3 Bg7 4. c3 0-0 5. h3 d6 6. e3 Nbd7 7. Be2 Re8 8. 0-0 e5 9. dxe5 dxe5 10. Bh2 e4 11. Nfd2 c5 12. Qb3 b6 13. Nc4 Bb7 14. Nd6 Qb8 15. Nxe8 Qxe8 16. Rd1 Ne5 17. Na3 Nfd7 18. Bb5 a6 19. Bxe5 Nxe5 20. Bxe8 Rxe8 21. Qxb6 Bc8 22. Rd8 Rf8 23. Rxf8+ Bxf8 24. Qc7 Nd3 25. Qxc8 Nxb2 26. Rb1 Nd3 27. Rb8 Kg7 28. Qxf8+ Kf6 29. Rb6+ Ke5 30. Nc4+ Kf5 31. Qxf7+ Kg5 32. Rf6 Kh6 33. Re6 Nc1 34. Qf4+ Kg7 35. Re7+ Kg8 36. Qf7+ 1-0

[Event "Adelboden Seniors op 4th"]
[Site "Adelboden"]
[Date "2006.06.25"]
[Round "6"]
[White "Berchten, Eduard"]
[Black "Neitzsch, Richard"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1466"]
[BlackElo "1659"]
[PlyCount "20"]
[EventDate "2006.06.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 c5 3. e3 Nc6 4. d4 e6 5. c3 Bd7 6. Bd3 Nf6 7. Nbd2 Be7 8. Ne5 0-0 9. 0-0 Nxe5 10. fxe5 Ne8 1/2-1/2

[Event "Adelboden Seniors op 4th"]
[Site "Adelboden"]
[Date "2006.06.22"]
[Round "4"]
[White "Brand, Michel"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "A92"]
[WhiteElo "1647"]
[BlackElo "1466"]
[PlyCount "99"]
[EventDate "2006.06.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. c4 f5 2. Nf3 e6 3. d4 Nf6 4. g3 Be7 5. Bg2 0-0 6. 0-0 Ne4 7. Nbd2 Nxd2 8. Bxd2 Bf6 9. Qc1 h6 10. Bf4 d6 11. h4 Qe8 12. Re1 Qh5 13. e4 fxe4 14. Rxe4 Re8 15. Nh2 e5 16. Bf3 Qf7 17. dxe5 dxe5 18. Bd2 Bf5 19. Re1 c6 20. Ng4 Nd7 21. Bxh6 Bxg4 22. Bxg4 gxh6 23. Qxh6 Nf8 24. Bh5 Qh7 25. Qxh7+ Nxh7 26. Re4 Re7 27. Rd1 Rf8 28. Kh2 Rg7 29. Rd6 Kh8 30. f3 c5 31. Kh3 Be7 32. Re6 Nf6 33. R4xe5 Nxh5 34. Rxh5+ Kg8 35. f4 Bf6 36. b3 Bd4 37. Reh6 Re7 38. Rg5+ Rg7 39. Re6 Rxg5 40. hxg5 Kg7 41. Re7+ Rf7 42. Rxf7+ Kxf7 43. Kg4 Bf2 44. f5 b6 45. Kf3 Be1 46. g4 Bd2 47. g6+ Kf6 48. Ke4 Ke7 49. Kd5 Kd7 50. g7 1-0

[Event "Adelboden Seniors op 4th"]
[Site "Adelboden"]
[Date "2006.06.21"]
[Round "3"]
[White "Berchten, Eduard"]
[Black "Iberg, Gottlieb"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1466"]
[BlackElo "1792"]
[PlyCount "87"]
[EventDate "2006.06.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. c3 e6 4. e3 c5 5. Nf3 Nc6 6. Be2 Be7 7. 0-0 0-0 8. h3 b6 9. Nbd2 Bb7 10. Ne5 Bd6 11. Nxc6 Bxc6 12. Bxd6 Qxd6 13. Nf3 Nd7 14. Re1 Rad8 15. Qc2 e5 16. dxe5 Nxe5 17. Nxe5 Qxe5 18. Bf3 Rd6 19. Rad1 Rf6 20. Qe2 h6 21. g3 Re8 22. Bg2 Rd6 23. h4 f5 24. f4 Qe6 25. Qf2 b5 26. a3 a5 27. Kh2 Qd7 28. Rd2 Rb8 29. Red1 Kh8 30. Qe1 b4 31. axb4 axb4 32. Ra1 bxc3 33. bxc3 Bb5 34. Rda2 Rdb6 35. Qd2 Bc4 36. Ra5 Rb2 37. Qc1 d4 38. cxd4 Bd5 39. Kg1 Rxg2+ 40. Kf1 cxd4 41. exd4 Rbb2 42. Rc5 Rbf2+ 43. Ke1 Qe6+ 44. Kd1 0-1

[Event "Adelboden Seniors op 4th"]
[Site "Adelboden"]
[Date "2006.06.19"]
[Round "1"]
[White "Berchten, Eduard"]
[Black "Benz, Urs"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1466"]
[BlackElo "1727"]
[PlyCount "47"]
[EventDate "2006.06.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 e6 3. Nf3 Nc6 4. c3 d5 5. e3 h6 6. Nbd2 Bd6 7. Bxd6 Qxd6 8. Bd3 0-0 9. 0-0 Re8 10. Qc2 a6 11. Rfe1 e5 12. dxe5 Nxe5 13. Nxe5 Qxe5 14. Nf3 Qd6 15. Rad1 c6 16. h3 Qc7 17. b3 Be6 18. Nd4 Bd7 19. c4 Rad8 20. b4 Qc8 21. c5 Re5 22. Nf3 Rh5 23. Nh2 Rg5 24. f4 1/2-1/2

[Event "Weggis Seniors op 7th"]
[Site "Weggis"]
[Date "2006.05.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Bachofen, Jakob"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1466"]
[BlackElo "1908"]
[PlyCount "58"]
[EventDate "2006.05.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. Nf3 e6 4. e3 Bd6 5. Bxd6 Qxd6 6. Bd3 Qb4+ 7. c3 Qxb2 8. Nbd2 Qxc3 9. Be2 0-0 10. 0-0 c6 11. Rc1 Qa3 12. Qc2 Qd6 13. Ne5 Nfd7 14. f4 f5 15. g4 Nxe5 16. fxe5 Qe7 17. Rf4 fxg4 18. Rxg4 Bd7 19. Bd3 h6 20. Rf1 Na6 21. Bh7+ Kh8 22. Qg6 Rxf1+ 23. Nxf1 Rf8 24. Qb1 Be8 25. Bg6 Bxg6 26. Qxg6 Qf7 27. Qxf7 Rxf7 28. Rf4 Rxf4 29. exf4 Nb4 0-1

[Event "Weggis Seniors op 7th"]
[Site "Weggis"]
[Date "2006.05.??"]
[Round "?"]
[White "Drexel, Bruno"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "B84"]
[WhiteElo "1666"]
[BlackElo "1466"]
[PlyCount "62"]
[EventDate "2006.05.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 d6 5. Be2 Nf6 6. Nc3 a6 7. 0-0 Qc7 8. Be3 b6 9. f4 g6 10. Bf3 Bb7 11. Qe2 Bg7 12. Rad1 0-0 13. g4 Nbd7 14. Qg2 Rad8 15. f5 Nc5 16. g5 Ne8 17. f6 Nxf6 18. gxf6 Bxf6 19. Bg4 Bg7 20. Bg5 Rde8 21. Bf6 e5 22. Nde2 Bxf6 23. Rxf6 Rd8 24. Ng3 Qe7 25. Rdf1 Kh8 26. Qf2 Kg8 27. Qd2 Nd7 28. Bxd7 Qxd7 29. Qg5 Rde8 30. Nf5 Re6 31. Nh6+ Kh8 1-0

[Event "Weggis Seniors op 7th"]
[Site "Weggis"]
[Date "2006.05.??"]
[Round "?"]
[White "Keller, Max"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "1661"]
[BlackElo "1466"]
[PlyCount "97"]
[EventDate "2006.05.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 Bf5 3. e3 Nf6 4. Be2 c6 5. 0-0 h6 6. d3 e6 7. Qe1 Nbd7 8. Nc3 Be7 9. h3 0-0 10. g4 Bh7 11. Kh1 Kh8 12. Rg1 Rg8 13. Bd2 Ne8 14. e4 dxe4 15. dxe4 Nc5 16. Bf1 Nd6 17. Bd3 Nxd3 18. cxd3 Qc7 19. g5 hxg5 20. fxg5 g6 21. Ne2 Raf8 22. Bc3+ f6 23. Qh4 Ne8 24. Raf1 Qd8 25. Ne1 Rg7 26. Qh6 e5 27. h4 Qd7 28. Kh2 Qe6 29. gxf6 Rxf6 30. Rxf6 Bxf6 31. Nf3 Kg8 32. h5 gxh5 33. Rxg7+ Nxg7 34. Ng3 c5 35. Nxh5 Nxh5 36. Qxh5 Qf7 37. Qxf7+ Kxf7 38. Nxe5+ Bxe5+ 39. Bxe5 Ke6 40. Bc3 b5 41. a3 c4 42. dxc4 bxc4 43. e5 Bc2 44. Kg3 a6 45. Kf4 Bb3 46. Ke4 Bc2+ 47. Kd4 Bb3 48. Kc5 Ba2 49. Kb6 1-0

[Event "Weggis Seniors op 7th"]
[Site "Weggis"]
[Date "2006.05.??"]
[Round "?"]
[White "Ruhle, Ernst Albrecht"]
[Black "Berchten, Eduard"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "1608"]
[BlackElo "1466"]
[PlyCount "79"]
[EventDate "2006.05.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. b4 d5 2. Bb2 Nf6 3. e3 Bf5 4. Be2 c6 5. Nf3 h6 6. h3 e6 7. a3 Nbd7 8. 0-0 Be7 9. d4 0-0 10. Bd3 Bxd3 11. Qxd3 Qc7 12. Nbd2 Bd6 13. c4 Rfe8 14. c5 Be7 15. e4 dxe4 16. Nxe4 Nxe4 17. Qxe4 Bf6 18. Ne5 Nxe5 19. dxe5 Bg5 20. Bc1 Bxc1 21. Raxc1 Rad8 22. Rcd1 Rd5 23. f4 Red8 24. Qf3 R8d7 25. Rfe1 Qd8 26. Rxd5 Rxd5 27. Kf2 Rd3 28. Re3 Rxe3 29. Qxe3 Qd5 30. g4 g6 31. h4 Qd8 32. g5 h5 33. Ke2 Qd5 34. Qd3 Qxd3+ 35. Kxd3 Kf8 36. Kc4 Ke7 37. a4 Kd7 38. b5 Kc7 39. a5 a6 40. b6+ 1/2-1/2

[Event "Bad Ragaz Seniors op 4th"]
[Site "Bad Ragaz"]
[Date "2006.03.29"]
[Round "9"]
[White "Bissig, Martin"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "B43"]
[WhiteElo "1639"]
[BlackElo "1432"]
[PlyCount "58"]
[EventDate "2006.03.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b6 6. Be2 Bb7 7. f3 Qc7 8. Nb3 d6 9. Bf4 Nc6 10. 0-0 Nf6 11. Bg3 Be7 12. Bf2 0-0 13. a3 Bd8 14. Rc1 Qe7 15. Bh4 Bc7 16. Kh1 Ne5 17. f4 Ng6 18. Bg5 h6 19. f5 hxg5 20. fxg6 Nxe4 21. gxf7+ Rxf7 22. Qe1 Nxc3 23. Qxc3 Rc8 24. Qe3 Rcf8 25. Rxf7 Rxf7 26. Bd3 Qf8 27. Qh3 g6 28. Qxe6 Bc8 29. Qd5 Bb7 1-0

[Event "Bad Ragaz Seniors op 4th"]
[Site "Bad Ragaz"]
[Date "2006.03.26"]
[Round "?"]
[White "Ruhle, Ernst Albrecht"]
[Black "Berchten, Eduard"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "1610"]
[BlackElo "1432"]
[PlyCount "65"]
[EventDate "2006.03.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. Nf3 c5 2. b3 e6 3. Bb2 Nf6 4. c4 d6 5. e3 b6 6. Be2 Be7 7. 0-0 Bb7 8. d4 cxd4 9. exd4 d5 10. Nbd2 Nbd7 11. Rc1 0-0 12. h3 Rc8 13. cxd5 Nxd5 14. Rxc8 Qxc8 15. Qc1 a6 16. Qxc8 Rxc8 17. Nc4 b5 18. Na3 Bd6 19. Re1 Nf4 20. Kf1 Nxe2 21. Rxe2 Bxf3 22. gxf3 Nf6 23. Rc2 Rxc2 24. Nxc2 Nd5 25. Ne3 Nf4 26. h4 h5 27. Bc1 Kf8 28. Ng2 Nxg2 29. Kxg2 Ke7 30. f4 Kf6 31. Kf3 Kf5 32. a4 bxa4 33. bxa4 1/2-1/2

[Event "Bad Ragaz Seniors op 4th"]
[Site "Bad Ragaz"]
[Date "2006.03.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Joerger, Werner"]
[Result "0-1"]
[ECO "D05"]
[WhiteElo "1432"]
[BlackElo "1600"]
[PlyCount "96"]
[EventDate "2006.03.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 b6 5. Nbd2 Bb7 6. 0-0 Bd6 7. Re1 0-0 8. e4 dxe4 9. Nxe4 Nbd7 10. c3 Be7 11. Bf4 c5 12. dxc5 Nxc5 13. Nxc5 Bxc5 14. Ne5 Qd5 15. Bf1 Rad8 16. Qxd5 Bxd5 17. Be3 Be7 18. Bd4 Bb7 19. f3 Nd5 20. Rad1 f6 21. Ng4 e5 22. Be3 h5 23. Nf2 Nxe3 24. Rxd8 Rxd8 25. Rxe3 Bc5 26. Rd3 Rxd3 27. Bxd3 Be3 28. Kf1 Bxf2 29. Kxf2 Kf7 30. Ke3 h4 31. Be4 Ba6 32. Bd3 Bxd3 33. Kxd3 Ke6 34. c4 f5 35. b4 g5 36. c5 bxc5 37. a3 cxb4 38. axb4 Kd5 39. Kc3 e4 40. fxe4+ fxe4 41. Kd2 Kd4 42. Ke2 g4 43. h3 g3 44. Kd2 e3+ 45. Ke2 a6 46. Ke1 Kd3 47. Kd1 e2+ 48. Ke1 Ke3 0-1

[Event "Bad Ragaz Seniors op 4th"]
[Site "Bad Ragaz"]
[Date "2006.03.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Oettl, Godi"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1432"]
[PlyCount "70"]
[EventDate "2006.03.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 e6 3. e3 c5 4. c3 Nc6 5. Nf3 d5 6. Be2 Be7 7. h3 0-0 8. 0-0 b6 9. Nbd2 Bb7 10. Ne5 Bd6 11. Ndf3 Ne4 12. Qc2 Rc8 13. Bd3 Nf6 14. Rfe1 cxd4 15. Nxc6 Bxc6 16. Bxd6 Qxd6 17. exd4 h6 18. Ne5 Bb7 19. Re3 Nd7 20. Nxd7 Qxd7 21. Qd1 Qe7 22. Qg4 Qg5 23. Qxg5 hxg5 24. Rae1 Rc6 25. Re5 g4 26. hxg4 Bc8 27. R1e3 f6 28. Rh5 Kf7 29. f4 Rg8 30. g5 fxg5 31. fxg5 Ke7 32. Rf3 Kd6 33. Rf7 Rc7 34. g6 Re7 35. Rh7 Bd7 1/2-1/2

[Event "Bad Ragaz Seniors op 4th"]
[Site "Bad Ragaz"]
[Date "2006.03.??"]
[Round "?"]
[White "Klieber, Heinz"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "A85"]
[WhiteElo "1789"]
[BlackElo "1432"]
[PlyCount "67"]
[EventDate "2006.03.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 f5 2. c4 e6 3. Nc3 Nf6 4. a3 d5 5. Nf3 Be7 6. Bf4 c6 7. cxd5 exd5 8. e3 0-0 9. Bd3 Ne4 10. Ne5 Nd7 11. f3 Nd6 12. 0-0 Qe8 13. Rc1 Qh5 14. g4 fxg4 15. fxg4 Qe8 16. Rc2 g5 17. Bg3 Nf6 18. Rcf2 Bd7 19. h3 Nf7 20. Rxf6 Nxe5 21. Rxf8+ Bxf8 22. Bxe5 Qe7 23. Qf3 Bg7 24. Bxg7 Qxg7 25. Qf6 Qxf6 26. Rxf6 Kg7 27. Rf2 Re8 28. e4 dxe4 29. Bxe4 h6 30. Kf1 Be6 31. d5 cxd5 32. Bxd5 Bc8 33. Rf7+ Kg6 34. Rc7 1-0

[Event "Zuerich Seniors op 4th"]
[Site "Zuerich"]
[Date "2006.01.24"]
[Round "2"]
[White "Benz, Urs"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "B21"]
[WhiteElo "1736"]
[BlackElo "1432"]
[PlyCount "75"]
[EventDate "2006.01.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 d3 4. c4 e6 5. Bxd3 Nf6 6. Nc3 d6 7. Nf3 Nbd7 8. Bc2 a6 9. 0-0 Be7 10. b3 b6 11. Qe2 Bb7 12. Rd1 Qc7 13. Be3 0-0 14. Bf4 Ne5 15. Nxe5 dxe5 16. Be3 Rfd8 17. Na4 Bc5 18. Nxc5 bxc5 19. Bg5 Rxd1+ 20. Rxd1 Ne8 21. Qg4 Qc8 22. h4 f6 23. Be3 Kh8 24. a3 a5 25. Qe2 Ba6 26. a4 Qc6 27. Qd2 Kg8 28. f3 Qc7 29. Qf2 Rc8 30. Qd2 Ra8 31. Bf2 Rc8 32. Be1 Ra8 33. Qxa5 Qxa5 34. Bxa5 Bxc4 35. Bb6 Bxb3 36. Bxb3 Rb8 37. Bxe6+ Kf8 38. Bxc5+ 1-0

[Event "Zuerich Seniors op 4th"]
[Site "Zuerich"]
[Date "2006.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Bachmann, Irma"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1432"]
[PlyCount "37"]
[EventDate "2006.01.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. c3 Nc6 4. Nf3 e6 5. h3 h6 6. Nbd2 Bd6 7. Bxd6 cxd6 8. e3 Bd7 9. Be2 0-0 10. 0-0 Rc8 11. Rc1 Ne4 12. Nh2 Nxd2 13. Qxd2 Ne7 14. f4 f5 15. Rf3 Be8 16. Rg3 Ng6 17. Rf3 Qh4 18. Qe1 Qxe1+ 19. Rxe1 1/2-1/2

[Event "Zuerich Seniors op 4th"]
[Site "Zuerich"]
[Date "2006.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Kammermann, Hans"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1432"]
[PlyCount "71"]
[EventDate "2006.01.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 e6 3. c3 d5 4. Nf3 Nbd7 5. h3 Be7 6. e3 a6 7. Bd3 h6 8. Nbd2 g5 9. Bh2 c5 10. Qe2 c4 11. Bc2 b5 12. 0-0 Bb7 13. Ne5 Nxe5 14. Bxe5 Kd7 15. Nf3 Qf8 16. Bh2 Bd6 17. Ne5+ Bxe5 18. Bxe5 Ke7 19. Bxf6+ Kxf6 20. Qf3+ Ke7 21. Qg3 f5 22. Qc7+ Kf6 23. Qxb7 Qd6 24. f3 Kg6 25. e4 Rab8 26. Qa7 Ra8 27. Qc5 Qxc5 28. dxc5 dxe4 29. fxe4 f4 30. Rad1 e5 31. Rd6+ Kh5 32. Re6 Kh4 33. Kh2 Rag8 34. Bd1 h5 35. Rxe5 g4 36. Rxf4 1-0

[Event "Zuerich Seniors op 4th"]
[Site "Zuerich"]
[Date "2006.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Litscher, Hans Ulrich"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "1432"]
[BlackElo "1633"]
[PlyCount "90"]
[EventDate "2006.01.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bf4 Na6 4. c3 c5 5. e3 Nc7 6. h3 Be7 7. Be2 0-0 8. Nbd2 d5 9. 0-0 a6 10. Qc2 Bd7 11. Ne5 Bb5 12. Ndf3 Bxe2 13. Qxe2 Rc8 14. Qc2 Ne4 15. Nd2 Nxd2 16. Qxd2 g5 17. Bh2 Bd6 18. f4 f6 19. Ng4 Kg7 20. Qc2 cxd4 21. exd4 Nb5 22. Qd2 Qb6 23. Rae1 Rce8 24. fxg5 Bxh2+ 25. Kxh2 Qd6+ 26. g3 f5 27. Ne5 Qe7 28. Rf4 Nd6 29. Rh4 Ne4 30. Qf4 Nxg5 31. Nd7 Rf7 32. Ne5 Rff8 33. Kg2 Rg8 34. Rh5 Kf8 35. h4 Ne4 36. Qh6+ Qg7 37. Qxg7+ Rxg7 38. Re3 Ke7 39. Kh2 Reg8 40. a3 Ke8 41. Rf3 Nxg3 42. Rg5 Ne4 43. Rxg7 Rxg7 44. b3 Nd2 45. Rg3 Nf1+ 0-1

[Event "Ascona Seniors op 4th"]
[Site "Ascona"]
[Date "2005.11.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Deller, Henri"]
[Result "1-0"]
[ECO "E61"]
[PlyCount "57"]
[EventDate "2005.10.31"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. e3 Bg7 4. Nc3 0-0 5. Nf3 d6 6. Be2 Nbd7 7. 0-0 e5 8. d5 e4 9. Nd2 Re8 10. f3 exf3 11. Nxf3 Bh6 12. e4 Bxc1 13. Rxc1 Nxe4 14. Bd3 Nxc3 15. Rxc3 Ne5 16. b3 Nxd3 17. Qxd3 Bf5 18. Qd2 c6 19. Kh1 Qc7 20. Nd4 Bd7 21. Qh6 Re4 22. Ne6 Bxe6 23. dxe6 fxe6 24. Rcf3 Qg7 25. Qd2 d5 26. Rf7 Qd4 27. Qh6 Qh8 28. Rf8+ Rxf8 29. Qxf8# 1-0

[Event "Ascona Seniors op 4th"]
[Site "Ascona"]
[Date "2005.11.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Ludwig, Anton"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "40"]
[EventDate "2005.10.31"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 d5 2. e3 c6 3. Nf3 e6 4. Bd3 f5 5. Nc3 Nf6 6. Bd2 Bd6 7. Qe2 Nbd7 8. Nd1 b5 9. b3 0-0 10. c4 a6 11. cxd5 cxd5 12. Rc1 Ne4 13. 0-0 g5 14. Nc3 g4 15. Ne1 Qh4 16. g3 Qh3 17. f3 gxf3 18. Rxf3 Kh8 19. Qg2 Qxg2+ 20. Nxg2 Nxd2 0-1

[Event "Laax Seniors op 4th"]
[Site "Laax"]
[Date "2005.08.24"]
[Round "3"]
[White "Wisser, Karl"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "1556"]
[BlackElo "1450"]
[PlyCount "63"]
[EventDate "2005.08.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 e6 3. g3 Nf6 4. Bg2 d6 5. e4 Nbd7 6. d3 Qc7 7. Nf3 b6 8. 0-0 Bb7 9. a3 g6 10. Rb1 Bg7 11. b4 0-0 12. Nb5 Qb8 13. Bb2 a6 14. Nc3 Rc8 15. Re1 d5 16. cxd5 exd5 17. e5 d4 18. exf6 dxc3 19. Bxc3 Bxf6 20. Bxf6 Nxf6 21. bxc5 b5 22. d4 Re8 23. Rc1 Qc7 24. Qb3 Bd5 25. Qb4 Rac8 26. Rxe8+ Rxe8 27. Ne5 Bxg2 28. Kxg2 Rxe5 29. dxe5 Qxe5 30. Re1 Qd5+ 31. Kg1 Ne4 32. Qxe4 1-0

[Event "Laax Seniors op 4th"]
[Site "Laax"]
[Date "2005.08.22"]
[Round "1"]
[White "Luethi, Marcel"]
[Black "Berchten, Eduard"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "1745"]
[BlackElo "1550"]
[PlyCount "49"]
[EventDate "2005.08.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 Bb4+ 4. c3 Be7 5. Bd3 d6 6. Nbd2 Nbd7 7. 0-0 0-0 8. Re1 c5 9. Qc2 b6 10. e4 e5 11. d5 Qc7 12. b3 Bb7 13. Bb2 Nh5 14. Rac1 Nf4 15. Bf1 Nf6 16. c4 Rac8 17. Nb1 a6 18. Nc3 Qd7 19. Ne2 N6h5 20. h3 Rfe8 21. Kh2 Rb8 22. g3 Ng6 23. h4 Bc8 24. Neg1 Qg4 25. Bh3 1-0

[Event "Laax Seniors op 4th"]
[Site "Laax"]
[Date "2005.??.??"]
[Round "?"]
[White "Berchten, Eduard"]
[Black "Caduff, Clemens"]
[Result "0-1"]
[ECO "A46"]
[PlyCount "98"]
[EventDate "2005.08.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. e3 e6 3. Nf3 d6 4. Bd3 g6 5. Nbd2 Bg7 6. b3 0-0 7. Bb2 Nbd7 8. 0-0 d5 9. e4 dxe4 10. Nxe4 c6 11. Re1 Qc7 12. c4 Nxe4 13. Rxe4 Nf6 14. Rh4 Bd7 15. Ne5 Rad8 16. Qf3 Ne8 17. Re1 Bxe5 18. dxe5 Qa5 19. Ra1 Qd2 20. Bd4 Qg5 21. Qh3 h5 22. f4 Qe7 23. Be2 Ng7 24. g4 f6 25. exf6 Rxf6 26. Bxf6 Qxf6 27. Rd1 Qxf4 28. gxh5 Qg5+ 29. Kh1 c5 30. h6 Bc6+ 31. Rd5 Bxd5+ 32. cxd5 Qxd5+ 33. Qg2 Qxg2+ 34. Kxg2 Nf5 35. Rh3 Kh7 36. Bc4 Re8 37. Rd3 Kxh6 38. Kf3 a6 39. Kf4 b5 40. Rh3+ Kg7 41. Be2 Rd8 42. Rd3 Rxd3 43. Bxd3 Kf6 44. Be4 g5+ 45. Kg4 c4 46. bxc4 bxc4 47. Kf3 Nd6 48. Ke3 Ke5 49. Bc2 Nb5 0-1

[Event "Laax Seniors op 4th"]
[Site "Laax"]
[Date "2005.??.??"]
[Round "?"]
[White "Busslinger, Felix"]
[Black "Berchten, Eduard"]
[Result "0-1"]
[ECO "A45"]
[PlyCount "100"]
[EventDate "2005.08.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 e6 3. e3 Bb4 4. Bd2 c5 5. Nge2 cxd4 6. exd4 d5 7. Ng3 a6 8. Be2 Nc6 9. Be3 Qc7 10. 0-0 0-0 11. f3 b5 12. Qd2 Re8 13. a3 Bd6 14. f4 Ne7 15. b4 Bb7 16. Na2 Rac8 17. Rac1 h5 18. Bxh5 Nxh5 19. Nxh5 Nf5 20. Ng3 Nxe3 21. Qxe3 Qe7 22. Ne2 Qh4 23. g3 Qh3 24. Rf2 Kh7 25. Rg2 Rh8 26. Qf2 Kg8 27. c3 Rh6 28. Rc2 Rf6 29. g4 Qd3 30. Nec1 Qd1+ 31. Qf1 Qxf1+ 32. Kxf1 Rxf4+ 33. Rgf2 f6 34. Rxf4 Bxf4 35. Nd3 Bd6 36. h4 Kf7 37. Nc5 Rc7 38. Nxb7 Rxb7 39. h5 Rb8 40. Kf2 Rh8 41. Nc1 g6 42. hxg6+ Kxg6 43. Ne2 Kg5 44. Kf3 Rh3+ 45. Ng3 Kh4 46. Rg2 Bxg3 47. Ke3 Be1+ 48. Kf4 Bxc3 49. g5 fxg5+ 50. Rxg5 Bd2+ 0-1

