[Event "BRA-ch U20 1st"]
[Site "Volta Redonda"]
[Date "1973.12.??"]
[Round "5"]
[White "Dias, Marco Antonio"]
[Black "Caricio, Stuart"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "84"]
[EventDate "1973.12.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Bxf6 gxf6 9. Na3 d5 10. Nab1 d4 11. Ne2 f5 12. exf5 Bxf5 13. Ng3 Bg6 14. Bd3 Qa5+ 15. Qd2 Bb4 16. c3 dxc3 17. bxc3 Rd8 18. cxb4 Nxb4 19. 0-0 Rxd3 20. Qe2 0-0 21. h4 Rd6 22. h5 Bd3 23. Qg4+ Kh8 24. Rd1 Rg8 25. Qf3 Qb6 26. Nc3 Rf6 27. Qe3 Qxe3 28. fxe3 Rxg3 29. Rxd3 Nxd3 30. Ne4 Rxe3 31. Nxf6 Re1+ 32. Rxe1 Nxe1 33. Nd7 Nd3 34. Kf1 Kg7 35. a3 f5 36. g3 b5 37. Ke2 e4 38. Ke3 Kh6 39. g4 fxg4 40. Kxe4 Nf2+ 41. Kf4 Kxh5 42. Nf6+ Kh4 0-1

[Event "BRA-ch U20 1st"]
[Site "Volta Redonda"]
[Date "1973.12.??"]
[Round "4"]
[White "Dias, Marco Antonio"]
[Black "Chaves, Jaime Augusto"]
[Result "0-1"]
[ECO "B75"]
[PlyCount "80"]
[EventDate "1973.12.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f3 Bg7 7. Be3 a6 8. Qd2 Nbd7 9. g4 Nc5 10. 0-0-0 b5 11. Nde2 Nfd7 12. Bd4 Ne6 13. Bxg7 Nxg7 14. Nf4 Bb7 15. Ncd5 Ne6 16. Nxe6 fxe6 17. Qc3 Kf7 18. Nf4 Qc8 19. Qe3 Ne5 20. Nd3 Nc4 21. Qf4+ Kg7 22. Qg5 Qf8 23. Nf4 Qf7 24. Bxc4 bxc4 25. Ne2 Rhf8 26. Rhf1 Rab8 27. e5 Rbd8 28. Nd4 Bd5 29. f4 h6 30. Qh4 dxe5 31. fxe5 Qxf1 32. Rxf1 Rxf1+ 33. Kd2 g5 34. Qh3 Rf4 35. c3 Rf2+ 36. Kc1 Rdf8 37. Qg3 Rg2 38. Nxe6+ Kg8 39. Qxg2 Bxg2 40. Nxf8 Kxf8 0-1

[Event "BRA-ch U20 1st"]
[Site "Volta Redonda"]
[Date "1973.12.??"]
[Round "1"]
[White "Dias, Marco Antonio"]
[Black "Cunha Neto, Euclydes da"]
[Result "1-0"]
[ECO "C90"]
[PlyCount "109"]
[EventDate "1973.12.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[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 b5 6. Bb3 Be7 7. Re1 d6 8. h3 Na5 9. d3 Nxb3 10. axb3 0-0 11. Nc3 Re8 12. Nxb5 Rb8 13. Nc3 Bf8 14. d4 Bb7 15. dxe5 dxe5 16. Qxd8 Rbxd8 17. Bg5 Bc5 18. Nd5 Bxd5 19. exd5 Rd6 20. Nxe5 Nxd5 21. Nd3 Rxe1+ 22. Rxe1 f6 23. Nxc5 fxg5 24. Rd1 Nb4 25. Rxd6 cxd6 26. Ne4 Nxc2 27. Nxd6 Nb4 28. Kf1 Nd3 29. Ke2 Nc1+ 30. Kd2 Nxb3+ 31. Kc3 Nc1 32. Ne4 h6 33. b4 Ne2+ 34. Kc4 Nf4 35. Nc5 Nxg2 36. Nxa6 Nf4 37. b5 Ne6 38. Kd5 Kf7 39. Kd6 Nd8 40. Kc7 Ke7 41. Nc5 g4 42. hxg4 g6 43. b6 h5 44. gxh5 gxh5 45. Ne4 h4 46. Ng5 Ke8 47. f4 Ke7 48. f5 Ke8 49. f6 h3 50. f7+ Ke7 51. Nxh3 Ne6+ 52. Kc8 Nc5 53. Ng5 Kf8 54. b7 Nxb7 55. Kxb7 1-0

[Event "BRA-ch U20 1st"]
[Site "Volta Redonda"]
[Date "1973.12.??"]
[Round "7"]
[White "Dias, Marco Antonio"]
[Black "Peres, Alvaro"]
[Result "0-1"]
[ECO "A14"]
[PlyCount "60"]
[EventDate "1973.12.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 c5 4. 0-0 Nc6 5. d3 e6 6. c4 Be7 7. Nbd2 0-0 8. b3 Qc7 9. Bb2 d4 10. Ne1 e5 11. Nc2 Be6 12. Ne4 Nd7 13. Bc1 h6 14. f4 f5 15. Bh3 Bxc4 16. Bxf5 Bd5 17. Bh3 Nf6 18. Bg2 Qd7 19. Ne1 Rae8 20. Nxf6+ Rxf6 21. Bxd5+ Qxd5 22. Nf3 Ref8 23. Qc2 Bd6 24. fxe5 Nxe5 25. Ba3 Nxf3+ 26. exf3 Rxf3 27. Rxf3 Qxf3 28. Bxc5 Qe3+ 29. Kh1 Rf2 30. Qc4+ Kh7 0-1

[Event "BRA-ch U20 1st"]
[Site "Volta Redonda"]
[Date "1973.12.??"]
[Round "3"]
[White "Feliciano, Nilo"]
[Black "Dias, Marco Antonio"]
[Result "1/2-1/2"]
[ECO "C01"]
[PlyCount "82"]
[EventDate "1973.12.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. exd5 exd5 5. Nf3 Nf6 6. Bd3 0-0 7. 0-0 Bg4 8. h3 Bh5 9. a3 Be7 10. Be2 Ne4 11. Nd2 Nxc3 12. bxc3 Bxe2 13. Qxe2 Nd7 14. f4 Re8 15. Qd3 Nf6 16. Nf3 Ne4 17. Rb1 b6 18. c4 c5 19. cxd5 Qxd5 20. c4 Qb7 21. d5 Bf6 22. Bb2 Bxb2 23. Rxb2 f6 24. Re1 Nd6 25. Rbe2 Rxe2 26. Rxe2 Re8 27. Rxe8+ Nxe8 28. Qe2 Qd7 29. f5 Nd6 30. g4 Kf8 31. Nd2 Qe8 32. Qxe8+ Kxe8 33. a4 Kd7 34. Kf2 a6 35. Ke2 b5 36. cxb5 axb5 37. axb5 Nxb5 38. Kd3 Kd6 39. Kc4 Na3+ 40. Kb3 Nb5 41. Kc4 Na3+ 1/2-1/2

[Event "BRA-ch U20 1st"]
[Site "Volta Redonda"]
[Date "1973.12.??"]
[Round "2"]
[White "Maracaba, Francisco Wladimir"]
[Black "Dias, Marco Antonio"]
[Result "1-0"]
[ECO "E94"]
[PlyCount "84"]
[EventDate "1973.12.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. d5 Nbd7 8. 0-0 Nc5 9. Qc2 a5 10. Be3 Ng4 11. Bxc5 dxc5 12. h3 Nh6 13. Ne1 f5 14. Nd3 b6 15. exf5 Nxf5 16. Bg4 Nd4 17. Qd1 Bf5 18. Bxf5 gxf5 19. f3 Qh4 20. Qe1 Qxe1 21. Raxe1 Rae8 22. a4 Rf7 23. Nb5 Nxb5 24. axb5 e4 25. b3 Rfe7 26. fxe4 Rxe4 27. Rxe4 fxe4 28. Re1 Be5 29. Nxe5 Rxe5 30. Kf2 Kf7 31. Ke3 Kf6 32. Rf1+ Kg6 33. Rf4 Rg5 34. g4 Re5 35. Rxe4 Rxe4+ 36. Kxe4 Kg5 37. Ke5 Kh4 38. Ke6 Kxh3 39. Kd7 Kxg4 40. Kxc7 h5 41. d6 h4 42. d7 h3 1-0

[Event "BRA-ch U20 1st"]
[Site "Volta Redonda"]
[Date "1973.12.??"]
[Round "6"]
[White "Pereira, Edgar Silva"]
[Black "Dias, Marco Antonio"]
[Result "1/2-1/2"]
[ECO "C07"]
[PlyCount "38"]
[EventDate "1973.12.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[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. Ngf3 Nc6 5. Bb5 a6 6. Bxc6+ bxc6 7. 0-0 cxd4 8. Nxd4 c5 9. N4b3 Nf6 10. Qe2 c4 11. Nd4 dxe4 12. Qxc4 Qd5 13. Qxd5 exd5 14. c4 Bb7 15. Re1 Bb4 16. cxd5 Bxd5 17. a3 Bxd2 18. Bxd2 0-0 19. Bb4 Rfe8 1/2-1/2

