[Event "Natal Potiguar op"]
[Site "Natal"]
[Date "2012.06.10"]
[Round "7"]
[White "Da Silva, Ivonaldo Silvestre"]
[Black "Melo, Fernando Antonio Al"]
[Result "0-1"]
[ECO "B08"]
[BlackElo "1834"]
[PlyCount "62"]
[EventDate "2012.06.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 d6 2. Nc3 Nf6 3. Nf3 g6 4. d4 c6 5. Bc4 Bg7 6. d5 0-0 7. 0-0 Nbd7 8. Be3 a6 9. dxc6 bxc6 10. Qd2 Ne5 11. b3 Nfg4 12. Bf4 Nxc4 13. bxc4 Qa5 14. Ne2 Qxd2 15. Nxd2 Bxa1 16. Rxa1 f5 17. f3 Ne5 18. Rb1 fxe4 19. fxe4 Bg4 20. Bxe5 Bxe2 21. Re1 Bg4 22. h3 Be6 23. Bc3 Rf7 24. e5 d5 25. cxd5 cxd5 26. a4 Rc8 27. Re3 Rf4 28. Rd3 Rxa4 29. Rd4 Rxd4 30. Bxd4 Rxc2 31. Nf3 Rc4 0-1

[Event "Natal Potiguar op"]
[Site "Natal"]
[Date "2012.06.09"]
[Round "6"]
[White "Da Silva, Antonio Dutra"]
[Black "Da Silva, Ivonaldo Silvestre"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "1748"]
[PlyCount "25"]
[EventDate "2012.06.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. Nf3 b6 2. g3 Bb7 3. Bg2 Nc6 4. 0-0 e6 5. c4 d5 6. cxd5 exd5 7. Nc3 Nf6 8. d3 d4 9. Ne4 Qe7 10. Nxf6+ Qxf6 11. Qa4 Bd6 12. Nxd4 Qxd4 13. Bxc6+ 1-0

[Event "Natal Potiguar op"]
[Site "Natal"]
[Date "2012.06.09"]
[Round "5"]
[White "Da Silva, Ivonaldo Silvestre"]
[Black "Tashima, Vanessa Kelly"]
[Result "0-1"]
[ECO "C02"]
[BlackElo "1895"]
[PlyCount "60"]
[EventDate "2012.06.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 cxd4 5. Nxd4 Nc6 6. Bb5 Bd7 7. Nxc6 bxc6 8. Be2 Qc7 9. Bf4 Rb8 10. b3 Ne7 11. c4 Ng6 12. Bg3 Bb4+ 13. Nd2 Bc3 14. Rc1 Bxe5 15. Nf3 Bf4 16. Qd4 Qa5+ 17. Nd2 e5 18. Qb2 0-0 19. Bxf4 Nxf4 20. Qxe5 Nxe2 21. Rc2 Rfe8 22. Qg5 Ng3+ 23. Kd1 Nxh1 24. Nf3 Qd8 25. Qxd8 Rbxd8 26. Rd2 dxc4 27. bxc4 Bg4 28. Rxd8 Rxd8+ 29. Ke2 Bxf3+ 30. Kxf3 Rd2 0-1

[Event "Natal Potiguar op"]
[Site "Natal"]
[Date "2012.06.08"]
[Round "4"]
[White "Araujo, Vitor Angelo Lima"]
[Black "Da Silva, Ivonaldo Silvestre"]
[Result "0-1"]
[ECO "E85"]
[WhiteElo "1711"]
[PlyCount "62"]
[EventDate "2012.06.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. Nge2 Be6 8. d5 Bd7 9. Qd2 Na6 10. h4 Re8 11. g4 h5 12. g5 Nh7 13. 0-0-0 c6 14. f4 f6 15. fxe5 dxe5 16. gxf6 Nxf6 17. Bg5 Nc5 18. Bg2 Bg4 19. Rdf1 Rf8 20. Rf2 Qd6 21. Rhf1 Rf7 22. b4 Ncd7 23. c5 Qe7 24. d6 Qe6 25. Qd3 a5 26. Bxf6 Rxf6 27. Qb1 Qc4 28. Rxf6 Nxf6 29. Bf3 axb4 30. Bxg4 Nxg4 31. Qc2 Ne3 0-1

[Event "Natal Potiguar op"]
[Site "Natal"]
[Date "2012.06.08"]
[Round "3"]
[White "Da Silva, Ivonaldo Silvestre"]
[Black "Cabral Mesquita, Jussier"]
[Result "0-1"]
[ECO "B90"]
[BlackElo "1843"]
[PlyCount "98"]
[EventDate "2012.06.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Ng4 7. Bd2 Qb6 8. Be2 Nxf2 9. Kxf2 Qxd4+ 10. Ke1 e6 11. Rf1 b5 12. a3 Bb7 13. Bf3 Nd7 14. Qe2 Be7 15. Be3 Qc4 16. Qxc4 bxc4 17. b3 Bf6 18. Kd2 cxb3 19. cxb3 Rc8 20. Rac1 0-0 21. Bg4 Nc5 22. Bxc5 Rxc5 23. Rc2 Rfc8 24. Rfc1 Bg5+ 25. Kd3 Bxc1 26. Rxc1 Bxe4+ 27. Kxe4 Rxc3 28. Rxc3 Rxc3 29. Bd1 Rc1 30. Be2 a5 31. b4 axb4 32. axb4 Kf8 33. b5 Rb1 34. Kd4 Ke8 35. Kc3 Kd8 36. Bd3 Rc1+ 37. Kb4 g6 38. Ka5 Kc7 39. b6+ Kb8 40. Ka6 f5 41. h3 e5 42. g4 e4 43. gxf5 exd3 44. f6 d2 45. f7 Rf1 46. h4 d1Q 47. Kb5 Qd5+ 48. Kb4 Qc5+ 49. Kb3 Rf4 0-1

[Event "Natal Potiguar op"]
[Site "Natal"]
[Date "2012.06.07"]
[Round "1"]
[White "Da Silva, Ivonaldo Silvestre"]
[Black "Macedo, Alexandre Soares"]
[Result "0-1"]
[ECO "C54"]
[BlackElo "1895"]
[PlyCount "54"]
[EventDate "2012.06.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Nxe4 8. Bxb4 Nxb4 9. Qb3 Qe7 10. 0-0 c6 11. Nc3 d5 12. Nxe4 0-0 13. Bd3 Nxd3 14. Qxd3 dxe4 15. Qe3 f5 16. Rfe1 Be6 17. Ne5 Bd5 18. f3 f4 19. Qe2 e3 20. Qd3 Rad8 21. g3 g5 22. Ng4 Bxf3 23. Nh6+ Kh8 24. Qc3 Bd5 25. g4 Qe4 26. Kf1 Qf3+ 27. Kg1 Qf2# 0-1

[Event "Natal Potiguar op"]
[Site "Natal"]
[Date "2012.06.07"]
[Round "2"]
[White "De Almeida, Valdemiza Gurgel"]
[Black "Da Silva, Ivonaldo Silvestre"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "1405"]
[PlyCount "58"]
[EventDate "2012.06.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 c5 2. Bc4 d6 3. Nf3 Nf6 4. Nc3 g6 5. Ng5 e6 6. 0-0 Bg7 7. Qf3 0-0 8. Re1 Nc6 9. Qe3 Bh6 10. f4 Nd4 11. Qd3 e5 12. Ne2 exf4 13. Nf3 Nxe2+ 14. Qxe2 Re8 15. d3 d5 16. Bb3 dxe4 17. dxe4 Rxe4 18. Rd1 Qb6 19. Qf2 Ng4 20. Qh4 c4+ 21. Kf1 cxb3 22. Rd8+ Kg7 23. Bd2 f6 24. Bc3 Qxd8 25. Nd2 Bg5 26. Qh3 Re3 27. g3 fxg3 28. hxg3 Rxc3 29. bxc3 Ne3+ 0-1

