[Event "Rio de Janeiro Zonal"]
[Site "Rio de Janeiro"]
[Date "1964.05.??"]
[Round "5"]
[White "Alencastro, Mario"]
[Black "Mangini, Jose Thiago"]
[Result "0-1"]
[ECO "D94"]
[PlyCount "34"]
[EventDate "1964.05.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. e3 Bg7 5. Nf3 0-0 6. b3 c5 7. Bb2 cxd4 8. Nxd4 Qa5 9. Qc2 e5 10. Nf3 Nc6 11. a3 Bf5 12. Qc1 d4 13. b4 Qd8 14. Ne2 Bh6 15. h3 Ne4 16. g4 Nxf2 17. Nexd4 exd4 0-1

[Event "Rio de Janeiro Zonal"]
[Site "Rio de Janeiro"]
[Date "1964.05.??"]
[Round "7"]
[White "Alencastro, Mario"]
[Black "Rolim, Carlos Alves"]
[Result "1-0"]
[ECO "D31"]
[PlyCount "71"]
[EventDate "1964.05.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 e6 4. Nf3 dxc4 5. a4 Bb4 6. e3 b5 7. Bd2 Bxc3 8. bxc3 Nf6 9. Ne5 Bb7 10. Qf3 Qc7 11. Qg3 0-0 12. f3 Nbd7 13. e4 Nxe5 14. dxe5 Nd7 15. Bf4 Nc5 16. axb5 cxb5 17. Be2 Nd3+ 18. Bxd3 cxd3 19. 0-0 a5 20. Rfd1 Rfd8 21. Bg5 Qxc3 22. Rac1 Qd4+ 23. Kh1 a4 24. Bf6 g6 25. Qg5 Qb4 26. Bxd8 a3 27. Be7 Qd4 28. Bf6 Qb4 29. Qh6 Qf8 30. Qxf8+ Kxf8 31. Rxd3 a2 32. Ra1 Bc6 33. Rd2 b4 34. Rdxa2 Rb8 35. Rb2 Ke8 36. Rab1 1-0

[Event "Rio de Janeiro Zonal"]
[Site "Rio de Janeiro"]
[Date "1964.05.??"]
[Round "2"]
[White "Alencastro, Mario"]
[Black "Toth, Peter"]
[Result "1-0"]
[ECO "E70"]
[PlyCount "53"]
[EventDate "1964.05.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 0-0 6. Qd2 Na6 7. Bd3 c5 8. d5 Nc7 9. Nge2 a6 10. 0-0 Rb8 11. b3 b5 12. Rab1 bxc4 13. bxc4 Nd7 14. Bh6 Rxb1 15. Rxb1 Ne8 16. Ng3 Qa5 17. Bxg7 Nxg7 18. Rb3 Ne5 19. f4 Ng4 20. h3 Nf6 21. Qf2 e6 22. e5 dxe5 23. fxe5 Nd7 24. Nge4 Nxe5 25. Nf6+ Kh8 26. Qh4 Nh5 27. Qg5 1-0

[Event "Rio de Janeiro Zonal"]
[Site "Rio de Janeiro"]
[Date "1964.05.??"]
[Round "1"]
[White "Farias, Sergio A"]
[Black "Alencastro, Mario"]
[Result "1-0"]
[ECO "E91"]
[PlyCount "75"]
[EventDate "1964.05.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 c6 7. Bg5 h6 8. Bh4 a6 9. a4 Re8 10. h3 Qa5 11. 0-0 Nbd7 12. Rb1 c5 13. dxc5 Qxc5 14. b4 Qa7 15. Qc2 Nh5 16. Nd5 e6 17. Nc7 Nhf6 18. Rfd1 b6 19. Nxa8 Qxa8 20. Nd2 Bb7 21. f3 Nh5 22. Nb3 Be5 23. Bf2 Rc8 24. Qd2 Kh7 25. a5 f5 26. exf5 gxf5 27. Bd4 Rg8 28. Bxe5 Nxe5 29. Nd4 Rxg2+ 30. Kxg2 Qg8+ 31. Kf1 Qg3 32. Qe3 Nf4 33. Qf2 Qxh3+ 34. Ke1 Ng2+ 35. Kd2 Qh2 36. Rb3 Qf4+ 37. Kc2 Nh4 38. Nxe6 1-0

[Event "Rio de Janeiro Zonal"]
[Site "Rio de Janeiro"]
[Date "1964.05.??"]
[Round "6"]
[White "Gaya, Lindolfo"]
[Black "Alencastro, Mario"]
[Result "1/2-1/2"]
[ECO "E61"]
[PlyCount "93"]
[EventDate "1964.05.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d6 4. Bg5 h6 5. Bf4 Bg7 6. Qd2 c6 7. e4 Nbd7 8. Nf3 g5 9. Bg3 Nh5 10. Be2 Qa5 11. 0-0 c5 12. Rad1 Nxg3 13. hxg3 Qd8 14. dxc5 dxc5 15. e5 Qc7 16. Nd5 Qb8 17. Ne3 e6 18. Ng4 Qc7 19. Qe3 b6 20. Bd3 Bb7 21. Be4 0-0-0 22. Rd3 Ba6 23. Rd6 Nb8 24. Rfd1 f5 25. exf6 Rxd6 26. Rxd6 Qxd6 27. fxg7 Rg8 28. Nf6 Rxg7 29. Ne8 Qd1+ 30. Kh2 Re7 31. Bg6 Qd8 32. Nf6 Bxc4 33. b4 cxb4 34. Ne5 Bb5 35. Nf7 Rxf7 36. Qxe6+ Rd7 37. Bf5 Kc7 38. Qe5+ Rd6 39. Ne8+ Kc6 40. Nxd6 Qxd6 41. Be4+ Kc7 42. Qxb5 Nc6 43. Bxc6 Qxc6 44. Qxb4 a5 45. Qe7+ Qd7 46. Qe5+ Qd6 47. Qc3+ 1/2-1/2

[Event "Rio de Janeiro Zonal"]
[Site "Rio de Janeiro"]
[Date "1964.05.??"]
[Round "3"]
[White "Rodrigues, Luiz Carlos Donato"]
[Black "Alencastro, Mario"]
[Result "1/2-1/2"]
[ECO "C01"]
[PlyCount "47"]
[EventDate "1964.05.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Be3 dxe4 4. Nd2 f5 5. f3 exf3 6. Ngxf3 Nf6 7. Bc4 Bd6 8. 0-0 0-0 9. Ng5 Ng4 10. Rxf5 Nxe3 11. Qh5 Rxf5 12. Qxh7+ Kf8 13. Qh8+ Ke7 14. Qxg7+ Ke8 15. Qg6+ Kd7 16. Qxe6+ Kc6 17. Bb5+ Rxb5 18. Qxe3 Qxg5 19. Qf3+ Kd7 20. Rf1 Nc6 21. Qh3+ Kd8 22. Qh8+ Kd7 23. Qh3+ Ke8 24. Qh8+ 1/2-1/2

[Event "Rio de Janeiro Zonal"]
[Site "Rio de Janeiro"]
[Date "1964.05.??"]
[Round "4"]
[White "Souza Mendes, Joao"]
[Black "Alencastro, Mario"]
[Result "1-0"]
[ECO "C11"]
[PlyCount "85"]
[EventDate "1964.05.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. f4 c5 6. c3 Nc6 7. Ndf3 Qb6 8. Ne2 Be7 9. g3 Nf8 10. Bg2 Ng6 11. h4 h5 12. b3 cxd4 13. Nexd4 Bd7 14. Be3 Nxd4 15. Nxd4 Qc7 16. Rc1 Ba3 17. Rc2 Ne7 18. c4 Qa5+ 19. Kf2 Bc6 20. Nxc6 bxc6 21. cxd5 cxd5 22. Bf3 g6 23. Kg2 Nf5 24. Bf2 Ke7 25. Re1 Rac8 26. Ree2 Rhd8 27. Rxc8 Rxc8 28. Rc2 Rc3 29. Qd2 Bb4 30. Rxc3 Bxc3 31. Qd3 d4 32. a4 Qc5 33. Qa6 Bb4 34. Qc6 Qa5 35. Qa8 Bc5 36. Bc6 Qd8 37. Qb7+ Kf8 38. b4 Be7 39. a5 d3 40. Bf3 d2 41. Bd1 a6 42. b5 Qd3 43. bxa6 1-0

