[Event "World U20-ch19"]
[Site "Dortmund"]
[Date "1980.08.31"]
[Round "13"]
[White "Cauchy, D."]
[Black "Faseyitan, Olufemi"]
[Result "1/2-1/2"]
[ECO "A08"]
[PlyCount "21"]
[EventDate "1980.08.17"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "GER"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 c5 4. d3 Nc6 5. 0-0 Bf5 6. Nbd2 e6 7. Re1 Be7 8. c3 0-0 9. Nh4 Bg4 10. f3 Bh5 11. Bh3 1/2-1/2

[Event "World U20-ch19"]
[Site "Dortmund"]
[Date "1980.08.30"]
[Round "12"]
[White "Cauchy, D."]
[Black "Allen, Keith"]
[Result "0-1"]
[ECO "B10"]
[PlyCount "68"]
[EventDate "1980.08.17"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "GER"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c6 2. d3 e5 3. Nd2 g6 4. Ngf3 Bg7 5. Nb3 Ne7 6. Be3 0-0 7. d4 d5 8. exd5 e4 9. Nfd2 Nxd5 10. h4 f5 11. Bg5 Qc7 12. h5 e3 13. Nf3 exf2+ 14. Kxf2 h6 15. Bd2 g5 16. Bc4 f4 17. Bxd5+ cxd5 18. Bb4 Re8 19. Re1 Rxe1 20. Kxe1 Bg4 21. Qd3 a5 22. Bxa5 Rxa5 23. Nxa5 Qxa5+ 24. c3 Qb6 25. b4 Bxh5 26. Kd2 Nd7 27. Qf5 Qc6 28. Qd3 Bg6 29. Qe2 Be4 30. a4 Nb6 31. b5 Nc4+ 32. Ke1 Qc7 33. Nd2 Nxd2 34. Kxd2 Bxd4 0-1

[Event "World U20-ch19"]
[Site "Dortmund"]
[Date "1980.08.29"]
[Round "11"]
[White "Long, Peter"]
[Black "Cauchy, D."]
[Result "1-0"]
[ECO "B21"]
[PlyCount "59"]
[EventDate "1980.08.17"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "GER"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. f4 Nc6 3. Nf3 Nf6 4. d3 e6 5. Be2 d5 6. e5 Ng8 7. c3 Nge7 8. Be3 Nf5 9. Bf2 Be7 10. 0-0 0-0 11. g4 Nh6 12. h3 f6 13. d4 c4 14. Nbd2 f5 15. g5 Nf7 16. Be3 g6 17. h4 h5 18. Rf2 Kg7 19. Nf1 Rh8 20. Ng3 Qe8 21. Nd2 Nfd8 22. Rg2 Bd7 23. Ndf1 Qf7 24. Nxh5+ gxh5 25. Ng3 Be8 26. g6 Qf8 27. Nxh5+ Rxh5 28. Bxh5 Bxh4 29. Rh2 Qe7 30. Qf3 1-0

[Event "World U20-ch19"]
[Site "Dortmund"]
[Date "1980.08.27"]
[Round "10"]
[White "Cauchy, D."]
[Black "Valiente, Cristobal"]
[Result "0-1"]
[ECO "B10"]
[PlyCount "52"]
[EventDate "1980.08.17"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "GER"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c6 2. d3 d5 3. Nd2 g6 4. g3 Bg7 5. Bg2 e5 6. Ngf3 Ne7 7. 0-0 0-0 8. Re1 Nd7 9. b3 d4 10. Nc4 Qc7 11. Bd2 c5 12. Nh4 b5 13. Nb2 Bb7 14. a4 a6 15. Qc1 f5 16. f4 fxe4 17. dxe4 c4 18. bxc4 bxc4 19. c3 exf4 20. Bxf4 Qc5 21. Nd1 dxc3+ 22. Be3 Qa5 23. Ra3 c2 24. Bd2 cxd1Q 25. Bxa5 Qxc1 26. Rxc1 Bb2 0-1

[Event "World U20-ch19"]
[Site "Dortmund"]
[Date "1980.08.26"]
[Round "9"]
[White "Lazar, Yaroslav"]
[Black "Cauchy, D."]
[Result "1/2-1/2"]
[ECO "E13"]
[PlyCount "24"]
[EventDate "1980.08.17"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "GER"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb4 5. Bg5 h6 6. Bh4 Bb7 7. e3 0-0 8. Bd3 Be7 9. 0-0 d5 10. cxd5 Nxd5 11. Bxe7 Qxe7 12. Nxd5 exd5 1/2-1/2

[Event "World U20-ch19"]
[Site "Dortmund"]
[Date "1980.08.25"]
[Round "8"]
[White "Cauchy, D."]
[Black "Belkhodja, Slim"]
[Result "0-1"]
[ECO "B32"]
[PlyCount "74"]
[EventDate "1980.08.17"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "GER"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Qf6 8. Qxf6 Nxf6 9. Bd3 d5 10. exd5 Nxd5 11. 0-0 0-0 12. f4 Nxf4 13. Bxf4 exf4 14. Rxf4 Be6 15. Nc3 Rac8 16. a3 Ne5 17. Be4 Rc4 18. Ne2 g5 19. b3 Rc7 20. Rf2 Rd8 21. c4 Nc6 22. Bxc6 Rxc6 23. Ng3 Rd3 24. Rb1 Rb6 25. Rfb2 f5 26. c5 Rc6 27. b4 Rxa3 28. Ne2 Rd3 29. Kf2 Kf7 30. Ng3 Kg6 31. Nf1 f4 32. Rd2 Rxd2+ 33. Nxd2 Bd5 34. Re1 Re6 35. Rxe6+ Bxe6 36. Ne4 Bd5 37. Nd6 Kf6 0-1

[Event "World U20-ch19"]
[Site "Dortmund"]
[Date "1980.08.24"]
[Round "7"]
[White "Cauchy, D."]
[Black "Hadi, Jardak"]
[Result "1/2-1/2"]
[ECO "C05"]
[PlyCount "37"]
[EventDate "1980.08.17"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "GER"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. f4 c5 6. c3 Nc6 7. Ndf3 Qa5 8. Bd2 cxd4 9. Nxd4 Nxd4 10. cxd4 Bb4 11. Nf3 Nb6 12. Bxb4 Qxb4+ 13. Qd2 Qxd2+ 14. Nxd2 Bd7 15. Bd3 Rc8 16. b3 Ke7 17. Nf3 Rc3 18. Kd2 Rhc8 19. Rac1 1/2-1/2

[Event "World U20-ch19"]
[Site "Dortmund"]
[Date "1980.08.23"]
[Round "6"]
[White "Yosida, T."]
[Black "Cauchy, D."]
[Result "1-0"]
[ECO "B41"]
[PlyCount "73"]
[EventDate "1980.08.17"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "GER"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. c4 Nc6 7. Nxc6 dxc6 8. 0-0 e5 9. Nc3 Be7 10. Qe2 0-0 11. a4 Be6 12. Kh1 Ne8 13. f4 exf4 14. Bxf4 Bg5 15. Bg3 Qe7 16. e5 f5 17. exf6 Rxf6 18. Ne4 Rxf1+ 19. Rxf1 Bf7 20. Rxf7 Kxf7 21. Qh5+ g6 22. Qxg5 Qxg5 23. Nxg5+ Kg8 24. c5 h6 25. Ne4 Rd8 26. Nd6 Nxd6 27. cxd6 g5 28. Bc4+ Kh7 29. Be6 Kg6 30. d7 h5 31. Bc7 Rf8 32. Kg1 Kf6 33. d8Q+ Rxd8 34. Bxd8+ Kxe6 35. Bxg5 b5 36. axb5 cxb5 37. b4 1-0

[Event "World U20-ch19"]
[Site "Dortmund"]
[Date "1980.08.21"]
[Round "5"]
[White "Lyrintzakis, S."]
[Black "Cauchy, D."]
[Result "1-0"]
[ECO "E16"]
[PlyCount "59"]
[EventDate "1980.08.17"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "GER"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. g3 b6 5. Bg2 Bb7 6. Ne5 Nbd7 7. Nc3 c6 8. f4 Bb4 9. 0-0 Bxc3 10. bxc3 Ne4 11. cxd5 cxd5 12. c4 f6 13. cxd5 Bxd5 14. Nc4 b5 15. Ne3 Bb7 16. Qb3 Qb6 17. Ba3 Kd8 18. Rac1 a5 19. Qd3 f5 20. Bc5 Qa6 21. g4 g6 22. Rfd1 Ke8 23. Qb3 Kf7 24. gxf5 gxf5 25. Nxf5 a4 26. Nh6+ Kg7 27. Qh3 Nexc5 28. dxc5 Bxg2 29. Rxd7+ Kg6 30. Qg4+ 1-0

[Event "World U20-ch19"]
[Site "Dortmund"]
[Date "1980.08.20"]
[Round "4"]
[White "Cauchy, D."]
[Black "Canda, Danilo"]
[Result "0-1"]
[ECO "B61"]
[PlyCount "72"]
[EventDate "1980.08.17"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "GER"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 Bd7 7. Qd2 Rc8 8. f4 Qa5 9. Rd1 a6 10. Be2 Qb6 11. Nb3 Nb4 12. Bd3 Ng4 13. Bh4 Qe3+ 14. Qxe3 Nxe3 15. Rd2 g6 16. a3 Nxd3+ 17. cxd3 Bg7 18. d4 Nc4 19. Rc2 Nxb2 20. Rxb2 Rxc3 21. Kd2 Rc8 22. Rc1 Rxc1 23. Nxc1 Bc6 24. Ke3 e5 25. Nb3 exd4+ 26. Nxd4 Kd7 27. Rb4 b5 28. Bf2 Re8 29. Nxc6 Kxc6 30. Kd3 f5 31. exf5 gxf5 32. Be3 d5 33. g3 Re4 34. Bf2 Bf8 35. Rb3 Ra4 36. h3 h5 0-1

[Event "World U20-ch19"]
[Site "Dortmund"]
[Date "1980.08.19"]
[Round "3"]
[White "Cauchy, D."]
[Black "Damljanovic, Branko"]
[Result "0-1"]
[ECO "E90"]
[PlyCount "40"]
[EventDate "1980.08.17"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "GER"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. e4 d6 5. Nf3 0-0 6. Bd3 Bg4 7. h3 Bxf3 8. Qxf3 Nc6 9. Ne2 Nd7 10. Qe3 e5 11. dxe5 dxe5 12. Bd2 Nc5 13. Qxc5 Qxd3 14. Qd5 Nd4 15. Nxd4 Rad8 16. Qxb7 exd4 17. f3 Rb8 18. Qxa7 Rxb2 19. Rd1 Bh6 20. Qa5 Bxd2+ 0-1

[Event "World U20-ch19"]
[Site "Dortmund"]
[Date "1980.08.18"]
[Round "2"]
[White "Grant, Carl"]
[Black "Cauchy, D."]
[Result "1/2-1/2"]
[ECO "B45"]
[PlyCount "36"]
[EventDate "1980.08.17"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "GER"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Nc6 6. Bc4 Nf6 7. Bg5 Be7 8. Bb3 Na5 9. f4 Nxb3 10. Nxb3 b5 11. Qd4 Bb7 12. 0-0 h6 13. Bh4 Qc7 14. Rad1 d5 15. e5 Nd7 16. Bxe7 Kxe7 17. Rf3 Rac8 18. Rd2 g6 1/2-1/2

[Event "World U20-ch19"]
[Site "Dortmund"]
[Date "1980.08.17"]
[Round "1"]
[White "Arnason, Jon Loftur"]
[Black "Cauchy, D."]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "2435"]
[PlyCount "35"]
[EventDate "1980.08.17"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "GER"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nc6 6. Nxc6 dxc6 7. f4 Bc5 8. Qf3 Ne7 9. Nc3 b5 10. Bd2 Bb7 11. 0-0-0 Qc7 12. Ne2 b4 13. Bc4 Bc8 14. g4 a5 15. f5 e5 16. f6 gxf6 17. Qxf6 Ng6 18. Bg5 1-0

