[Event "BRA North Region-ch"]
[Site "Boa Vista"]
[Date "2006.05.??"]
[Round "2"]
[White "Colazo, Ciro"]
[Black "Oliveira, Marcos C"]
[Result "0-1"]
[ECO "B46"]
[PlyCount "115"]
[EventDate "2006.05.05"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[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. Nc3 Nc6 6. Nb3 Nf6 7. Bd3 Be7 8. Be3 0-0 9. f4 d6 10. g4 e5 11. Rg1 exf4 12. Bxf4 Qb6 13. Rg3 Ne5 14. Bxe5 dxe5 15. Qf3 Bb4 16. g5 Bxc3+ 17. bxc3 Ne8 18. Bc4 Be6 19. Bxe6 fxe6 20. Qe3 Qb5 21. 0-0-0 Qa4 22. Qb6 Qxe4 23. Qxe6+ Kh8 24. Rd7 Rf1+ 25. Kb2 Rf2 26. Nd2 Qa4 27. g6 h6 28. Rh3 Qf4 29. Ne4 Rxh2 30. Rf7 Rxc2+ 31. Kxc2 Qxe4+ 32. Kb3 Qb1+ 33. Ka3 Qc1+ 34. Ka4 b5+ 35. Kb4 Qb2+ 36. Qb3 a5+ 37. Kc5 Rc8+ 38. Kb6 Qxb3 39. axb3 Kg8 40. Rd3 e4 41. Rdd7 a4 42. bxa4 bxa4 43. Kb7 Rc5 44. Rd8 Re5 45. Kc6 e3 46. Rf1 e2 47. Re1 a3 48. Kd7 Kf8 49. Ra8 Re4 50. c4 h5 51. Rxa3 Rxc4 52. Rxe2 Rc7+ 53. Ke6 Re7+ 54. Kd5 Rxe2 55. Kc5 Ke7 56. Ra7+ Kf6 57. Ra6+ Kf5 58. Kc6 0-1

[Event "BRA North Region-ch"]
[Site "Boa Vista"]
[Date "2006.05.??"]
[Round "4"]
[White "Oliveira, Marcos C"]
[Black "De Souza, Martin Paulus"]
[Result "1/2-1/2"]
[ECO "C84"]
[PlyCount "18"]
[EventDate "2006.05.05"]
[EventType "swiss"]
[EventRounds "6"]
[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. Nc3 Be7 6. 0-0 d6 7. h3 b5 8. Bb3 Bb7 9. Re1 0-0 1/2-1/2

[Event "BRA North Region-ch"]
[Site "Boa Vista"]
[Date "2006.05.??"]
[Round "5"]
[White "Oliveira, Marcos C"]
[Black "Horacio, Fabio"]
[Result "1-0"]
[ECO "B84"]
[PlyCount "104"]
[EventDate "2006.05.05"]
[EventType "swiss"]
[EventRounds "6"]
[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 a6 6. Be2 e6 7. Be3 Be7 8. 0-0 0-0 9. Nb3 d5 10. e5 Nfd7 11. f4 Nc6 12. Bd3 g6 13. Rf3 f5 14. Rh3 Rf7 15. a4 b6 16. g4 Rg7 17. Be2 Kh8 18. Rh6 Nc5 19. Nd4 Nxd4 20. Bxd4 Nd7 21. Qe1 Bc5 22. Bxc5 bxc5 23. g5 Qb6 24. Nd1 c4+ 25. Qf2 Qxf2+ 26. Kxf2 Nc5 27. Bf3 Bd7 28. Ne3 Rb8 29. a5 Rxb2 30. h4 Nd3+ 31. Kg3 Nb4 32. c3 Nc2 33. Nxc2 Rxc2 34. Ra3 Rb2 35. Bd1 Be8 36. h5 Rgb7 37. hxg6 Bxg6 38. Ba4 Kg7 39. Rh1 Rd2 40. Rh2 Rd3+ 41. Kh4 h6 42. Rh3 hxg5+ 43. fxg5 Rxh3+ 44. Kxh3 Rb8 45. Kg3 Bh5 46. Ra1 Kg6 47. Kh4 Bg4 48. Rh1 Rh8+ 49. Kg3 Rxh1 50. Be8+ Kxg5 51. Bd7 Rc1 52. Bxe6 f4+ 1-0

[Event "BRA North Region-ch"]
[Site "Boa Vista"]
[Date "2006.05.??"]
[Round "1"]
[White "Oliveira, Marcos C"]
[Black "Pantoja, Mauro"]
[Result "1/2-1/2"]
[ECO "B44"]
[PlyCount "77"]
[EventDate "2006.05.05"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[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 Nc6 5. Be2 h6 6. 0-0 Nf6 7. Nc3 Bb4 8. Ndb5 0-0 9. a3 Bxc3 10. Nxc3 a6 11. Bf4 b5 12. Bd6 Re8 13. e5 Nh7 14. f4 Ne7 15. Bf3 Qb6+ 16. Kh1 Bb7 17. Ne4 Bxe4 18. Bxe4 Rac8 19. Qh5 Nf5 20. Bxf5 exf5 21. Qxf5 Re6 22. c3 Qc6 23. Rad1 Nf8 24. Rd3 Qc4 25. Rfd1 Ng6 26. Rd4 Qe2 27. R4d2 Qc4 28. Rf2 Qb3 29. Qd3 Rc4 30. Qd5 Qa4 31. g3 Ne7 32. Bxe7 Rxe7 33. Qa8+ Kh7 34. Rfd2 Rc6 35. Rxd7 Qe4+ 36. Kg1 Qe3+ 37. Kg2 Qe2+ 38. Kg1 Qe3+ 39. Kg2 1/2-1/2

[Event "BRA North Region-ch"]
[Site "Boa Vista"]
[Date "2006.05.??"]
[Round "3"]
[White "Reis, Renan do Carmo"]
[Black "Oliveira, Marcos C"]
[Result "1/2-1/2"]
[ECO "B42"]
[PlyCount "61"]
[EventDate "2006.05.05"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[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. Bd3 Be7 6. 0-0 d6 7. c4 Nf6 8. Nc3 0-0 9. Be3 Nc6 10. h3 Ne5 11. f4 Nxd3 12. Qxd3 Bd7 13. Rad1 Qc7 14. Nde2 Rad8 15. Bd4 e5 16. Be3 Bc6 17. g4 Nd7 18. b4 exf4 19. Nxf4 Ne5 20. Qe2 Bg5 21. Rc1 Ng6 22. Nxg6 Bxe3+ 23. Qxe3 hxg6 24. b5 Bd7 25. Kh1 Qxc4 26. Nd5 Qxb5 27. Qg5 Rde8 28. Ne7+ Rxe7 29. Qxe7 Bc6 30. Rf2 Qd3 31. Kh2 1/2-1/2

[Event "BRA North Region-ch"]
[Site "Boa Vista"]
[Date "2006.05.??"]
[Round "6"]
[White "Souza, David"]
[Black "Oliveira, Marcos C"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "67"]
[EventDate "2006.05.05"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nc6 3. g3 Nf6 4. Bg2 e6 5. 0-0 Be7 6. c3 0-0 7. Nbd2 Bd7 8. Qc2 a5 9. a4 h6 10. e4 dxe4 11. Nxe4 Nxe4 12. Qxe4 Bd6 13. Re1 Rb8 14. Bd2 Ne7 15. c4 Bc6 16. Qc2 b6 17. c5 bxc5 18. dxc5 Bxf3 19. Bxf3 Bxc5 20. Qxc5 Qxd2 21. Qxe7 Rxb2 22. Re2 Qc3 23. Rxb2 Qxb2 24. Qa3 Qb6 25. Rc1 Rd8 26. Qc5 Qb3 27. Qxc7 Rd2 28. Qc8+ Kh7 29. Qc3 Qa2 30. Be4+ f5 31. Bc2 Qd5 32. Bb3 Qd6 33. Bxe6 f4 34. Bf5+ 1-0

