[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1980.01.04"]
[Round "13"]
[White "Buechi, Marc"]
[Black "Yrjola, Jouni"]
[Result "0-1"]
[ECO "A01"]
[PlyCount "75"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. e3 d5 4. Bb5 Bd6 5. Nf3 f6 6. 0-0 Bg4 7. Be2 Nh6 8. c4 Ne7 9. Nc3 c6 10. d4 e4 11. Nd2 Be6 12. c5 Bc7 13. f3 Nhf5 14. fxe4 Nxe3 15. Qe1 Nxf1 16. Nxf1 0-0 17. Bd3 Qd7 18. Ng3 Rae8 19. Qd2 dxe4 20. Ncxe4 Nf5 21. Nh5 Nxd4 22. Rf1 Be5 23. Nexf6+ gxf6 24. Qh6 f5 25. g4 Ne2+ 26. Bxe2 Bxb2 27. g5 Bd4+ 28. Kg2 Bd5+ 29. Bf3 Re2+ 30. Kg3 Be5+ 31. Nf4 Bxf4+ 32. Kxf4 Qc7+ 33. Qd6 Qxd6+ 34. cxd6 Re4+ 35. Kg3 Re3 36. Kf4 Rxf3+ 37. Rxf3 Bxf3 38. Kxf3 0-1

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1980.01.03"]
[Round "12"]
[White "Motwani, Paul"]
[Black "Buechi, Marc"]
[Result "1-0"]
[ECO "C43"]
[PlyCount "29"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. e5 Ne4 5. Qxd4 d5 6. exd6 Nxd6 7. Nc3 Nc6 8. Qf4 Be7 9. Bd3 Be6 10. Be3 Qd7 11. 0-0-0 0-0-0 12. Qa4 Qe8 13. Bxa7 b6 14. Bb5 Nxb5 15. Qa6# 1-0

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1980.01.01"]
[Round "11"]
[White "Radziejewski, Dariusz"]
[Black "Buechi, Marc"]
[Result "1-0"]
[ECO "A38"]
[PlyCount "71"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 c5 3. Nf3 Nc6 4. g3 g6 5. Bg2 Bg7 6. 0-0 0-0 7. a3 d6 8. Rb1 a5 9. d3 Rb8 10. Bd2 Bd7 11. Qc1 Qc8 12. Bh6 Nd4 13. Bxg7 Kxg7 14. b4 axb4 15. axb4 b5 16. bxc5 Nxf3+ 17. Bxf3 Qxc5 18. Nxb5 Bxb5 19. cxb5 Rxb5 20. Qxc5 Rxc5 21. Rb7 e6 22. Ra1 Kg8 23. Raa7 h5 24. h4 d5 25. Re7 Ng4 26. Bxg4 hxg4 27. Ra4 Rc2 28. Rxg4 Rxe2 29. h5 Kh8 30. Rh4 gxh5 31. Rxh5+ Kg7 32. Rxd5 Kf6 33. Rdd7 Rd2 34. Kg2 e5 35. g4 Rxd3 36. g5+ 1-0

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1979.12.31"]
[Round "10"]
[White "Buechi, Marc"]
[Black "Alexopoulos, Georgios"]
[Result "1/2-1/2"]
[ECO "D00"]
[BlackElo "2270"]
[PlyCount "37"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. b3 d5 2. d4 g6 3. Nf3 Bg7 4. Bb2 Nh6 5. e3 0-0 6. c4 c6 7. Be2 f6 8. 0-0 b6 9. Nc3 Bb7 10. Qc2 Nd7 11. e4 e6 12. Rfe1 f5 13. exd5 exd5 14. Qd2 Nf6 15. Ng5 Re8 16. f3 Nf7 17. cxd5 cxd5 18. Bb5 Nxg5 19. Qxg5 1/2-1/2

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1979.12.29"]
[Round "9"]
[White "Buechi, Marc"]
[Black "James, Stephan"]
[Result "0-1"]
[ECO "E68"]
[PlyCount "52"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. g3 g6 2. Nf3 Bg7 3. Bg2 Nf6 4. 0-0 0-0 5. d4 d6 6. c4 Nbd7 7. Nc3 e5 8. dxe5 dxe5 9. e4 c6 10. Be3 Qc7 11. h3 Rd8 12. Qe2 Nf8 13. Nd2 Ne6 14. Nb3 b6 15. Rad1 Ba6 16. f4 Nh5 17. f5 Nxg3 18. Qf3 Nxf1 19. Rxf1 Nf4 20. Bxf4 exf4 21. Qg4 Be5 22. Ne2 Bxc4 23. Rc1 b5 24. h4 Qb6+ 25. Kh1 Qf2 26. Rc2 Rd1+ 0-1

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1979.12.28"]
[Round "8"]
[White "Hoeksema, Hendrik Pieter"]
[Black "Buechi, Marc"]
[Result "1-0"]
[ECO "E91"]
[PlyCount "59"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. e4 Bg7 5. Nf3 0-0 6. Be2 c5 7. 0-0 Nc6 8. d5 Ne5 9. Nxe5 dxe5 10. Be3 b6 11. a3 Nd7 12. b4 f5 13. f3 Nf6 14. bxc5 bxc5 15. Bxc5 Ba6 16. Qa4 Qc7 17. Bf2 Bxc4 18. d6 exd6 19. Qxc4+ Qxc4 20. Bxc4+ Kh8 21. Nd5 Rac8 22. Rac1 Nh5 23. Bd3 Rxc1 24. Rxc1 Nf4 25. Nxf4 exf4 26. exf5 g5 27. Bxa7 Bb2 28. Rb1 Be5 29. Rb8 Rxb8 30. Bxb8 1-0

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1979.12.27"]
[Round "7"]
[White "Buechi, Marc"]
[Black "Hjartarson, Johann"]
[Result "0-1"]
[ECO "A89"]
[BlackElo "2270"]
[PlyCount "92"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. g3 g6 2. Nf3 Bg7 3. Bg2 f5 4. d4 Nf6 5. 0-0 0-0 6. c4 d6 7. Nc3 Nc6 8. Bg5 Ne4 9. Be3 e5 10. dxe5 Nxc3 11. bxc3 dxe5 12. Qd5+ Qxd5 13. cxd5 Na5 14. Nd2 e4 15. Rac1 c6 16. c4 cxd5 17. cxd5 Rd8 18. f3 Rxd5 19. fxe4 Bd4 20. Bxd4 Rxd4 21. Rfd1 Be6 22. exf5 gxf5 23. Nf3 Rxd1+ 24. Rxd1 Nc6 25. Ng5 Bxa2 26. Rd7 Nd8 27. Nxh7 a5 28. Bxb7 Nxb7 29. Rxb7 a4 30. Nf6+ Kf8 31. Nd7+ Ke8 32. Nb6 Ra5 33. Rb8+ Kf7 34. Nxa4 Rxa4 35. Rb2 Bd5 36. e3 Ra1+ 37. Kf2 Rh1 38. Rd2 Rxh2+ 39. Ke1 Rxd2 40. Kxd2 Kf6 41. Ke2 Kg5 42. Kd3 Kg4 43. Kd2 Kxg3 44. Ke2 Be4 45. Ke1 Kf3 46. Kd2 Kf2 0-1

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1979.12.26"]
[Round "6"]
[White "Borg, Geoffrey D"]
[Black "Buechi, Marc"]
[Result "1-0"]
[ECO "C43"]
[PlyCount "55"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. e5 Qe7 5. Be2 Ng4 6. Qxd4 d6 7. exd6 Qxd6 8. 0-0 Nc6 9. Bb5 Be6 10. Bf4 Qxd4 11. Nxd4 Bd6 12. Bxd6 0-0-0 13. Nxe6 Rxd6 14. Bxc6 bxc6 15. Nf4 Rf6 16. Nd3 Rd8 17. Nc3 h5 18. Rad1 g5 19. Ne4 Rg6 20. Ndc5 Rdg8 21. Ng3 Nh6 22. Nxh5 Rh8 23. Rd7 f5 24. Re1 Ng4 25. Ree7 Rd6 26. Rxc7+ Kb8 27. Na6+ Ka8 28. Rxa7# 1-0

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1979.12.24"]
[Round "5"]
[White "Ferreira, Antonio"]
[Black "Buechi, Marc"]
[Result "1/2-1/2"]
[ECO "C37"]
[PlyCount "36"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Nc6 5. h4 g4 6. Ng5 Ne5 7. Bb3 h6 8. d4 hxg5 9. dxe5 d6 10. Nc3 Qe7 11. Nd5 Qd8 12. exd6 Bxd6 13. Bd2 c6 14. Bc3 Rxh4 15. Rxh4 gxh4 16. Nb4 h3 17. Qd4 Qh4+ 18. Ke2 Qf6 1/2-1/2

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1979.12.23"]
[Round "4"]
[White "Buechi, Marc"]
[Black "Karp, Michel"]
[Result "0-1"]
[ECO "A46"]
[PlyCount "28"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 c5 2. d4 Nf6 3. Nc3 cxd4 4. Nxd4 d5 5. g3 e5 6. Nf3 Nc6 7. Bg5 Be6 8. e4 d4 9. Bxf6 gxf6 10. Ne2 Bg4 11. Nc1 Qa5+ 12. c3 dxc3 13. Nb3 Qb4 14. Be2 cxb2+ 0-1

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1979.12.22"]
[Round "3"]
[White "Buechi, Marc"]
[Black "Merchiers, Koen"]
[Result "0-1"]
[ECO "A81"]
[PlyCount "68"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 e6 2. g3 f5 3. Nc3 Nf6 4. d4 d6 5. Bg2 Be7 6. 0-0 0-0 7. Qe1 Nbd7 8. e4 fxe4 9. Nxe4 Nxe4 10. Qxe4 Nf6 11. Qe2 c6 12. Be3 Qe8 13. Rfe1 Qh5 14. Rad1 Bd7 15. Rd3 Rae8 16. Bf4 Nd5 17. Bd2 Rf5 18. c4 Nb6 19. Re3 Ref8 20. Nh4 Qxe2 21. R1xe2 Bxh4 22. gxh4 Nxc4 23. Rg3 Nxd2 24. Rxd2 Rh5 25. Rg4 d5 26. Rd3 Rhf5 27. Rdg3 g6 28. h5 Rxh5 29. Bf3 Rhf5 30. Kg2 e5 31. dxe5 Rxf3 32. Rxf3 Bxg4 33. Rxf8+ Kxf8 34. Kg3 Bf5 0-1

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1979.12.21"]
[Round "2"]
[White "Kaspret, Guido"]
[Black "Buechi, Marc"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "41"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. h4 c5 6. dxc5 Qa5 7. Kf1 Qxc5 8. h5 Rf8 9. Be3 Qb4 10. e5 Ne4 11. Nxe4 Qxe4 12. exd6 Bxb2 13. Rb1 Ba3 14. Nf3 Bxd6 15. Ng5 Qf5 16. Rb5 Be5 17. g4 Qd7 18. Rd5 Bd6 19. Nxh7 Rh8 20. hxg6 fxg6 21. Nf6+ 1-0

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1979.12.20"]
[Round "1"]
[White "Buechi, Marc"]
[Black "Stigar, Petter"]
[Result "0-1"]
[ECO "B84"]
[PlyCount "63"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 a6 6. Be2 d6 7. 0-0 Nf6 8. Bg5 Be7 9. Re1 0-0 10. Bf3 Qc7 11. Nce2 Bd7 12. Ng3 Ne5 13. Nh5 Qd8 14. Bxf6 Bxf6 15. Be2 Be7 16. Nf3 Qc7 17. Rc1 Rac8 18. Kh1 Rfd8 19. Qd4 g6 20. Nf4 Nxf3 21. Bxf3 e5 22. Qe3 exf4 23. Qxf4 Qc5 24. e5 dxe5 25. Rxe5 Bd6 26. Rxc5 Bxf4 27. Rxc8 Bxc8 28. Re1 Kf8 29. g3 Bc7 30. Re3 Bh3 31. Re4 g5 32. Bg2 0-1

