[Event "Rio de Janeiro Estadual U20"]
[Site "Rio de Janeiro"]
[Date "2000.04.09"]
[Round "?"]
[White "Siviotti, Leonardo"]
[Black "Gandelman, Dan"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1940"]
[PlyCount "49"]
[EventDate "2000.04.??"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c3 Bf5 4. Qb3 b6 5. Ne5 Qd6 6. Bf4 Qd8 7. e3 Ng4 8. Bb5+ c6 9. Nxc6 Nxc6 10. Bxc6+ Bd7 11. Bxa8 Qxa8 12. Nd2 e6 13. Nf3 f6 14. h3 g5 15. hxg4 gxf4 16. exf4 Qd8 17. Qc2 Qe7 18. 0-0-0 Qg7 19. g5 f5 20. Rde1 h6 21. Qxf5 hxg5 22. Rxh8 Qxh8 23. Qg6+ Kd8 24. Nxg5 Be8 25. Qxe6 1-0

[Event "Rio de Janeiro Estadual U20"]
[Site "Rio de Janeiro"]
[Date "2000.04.08"]
[Round "?"]
[White "Di Berardino, Diego Rafael"]
[Black "Siviotti, Leonardo"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2021"]
[BlackElo "1940"]
[PlyCount "45"]
[EventDate "2000.04.??"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d3 Nc6 4. g3 g6 5. Bg2 Bg7 6. 0-0 Bg4 7. Nbd2 Qd7 8. Re1 h5 9. c3 Ne5 10. Qc2 Rc8 11. b3 Bh3 12. Bb2 h4 13. Nxe5 Bxe5 14. Bxh3 Qxh3 15. Nf1 Nh6 16. f4 Bg7 17. Qg2 Qxg2+ 18. Kxg2 b5 19. Rac1 hxg3 20. hxg3 Ng4 21. Re2 Kd7 22. Kf3 Nf6 23. Ne3 1-0

[Event "Rio de Janeiro Estadual U20"]
[Site "Rio de Janeiro"]
[Date "2000.04.07"]
[Round "?"]
[White "Le Masson, Igor"]
[Black "Siviotti, Leonardo"]
[Result "0-1"]
[ECO "B70"]
[WhiteElo "1786"]
[BlackElo "1940"]
[PlyCount "94"]
[EventDate "2000.04.??"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 g6 6. f3 Qb6 7. Bb5+ Bd7 8. Na4 Qc7 9. Be3 a6 10. Bxd7+ Nfxd7 11. 0-0 Ne5 12. b3 b5 13. Nb2 Bg7 14. Rc1 Qc3 15. Nd3 Nc4 16. Ne2 Nxe3 17. Nxc3 Nxd1 18. Nxd1 Kd7 19. Kh1 Rc8 20. Ne3 e6 21. f4 Bd4 22. Ng4 h5 23. Ngf2 Be3 24. Rce1 Bb6 25. Rc1 Ra7 26. Nd1 Rac7 27. c3 Bd4 28. cxd4 Rxc1 29. Nxc1 Rxc1 30. d5 a5 31. dxe6+ fxe6 32. Ne3 Rxf1+ 33. Nxf1 Nc6 34. Ne3 Nb4 35. a4 bxa4 36. bxa4 d5 37. exd5 exd5 38. Kg1 Kc6 39. h4 Kc5 40. f5 gxf5 41. Nxf5 d4 42. Ng3 Nd5 43. Nxh5 Kb4 44. Ng3 Kxa4 45. Ne4 Kb4 46. h5 a4 47. h6 Ne7 0-1

[Event "Rio de Janeiro Estadual U20"]
[Site "Rio de Janeiro"]
[Date "2000.04.06"]
[Round "?"]
[White "Spirin, Daniel"]
[Black "Siviotti, Leonardo"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "1882"]
[BlackElo "1940"]
[PlyCount "98"]
[EventDate "2000.04.??"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Bd2 dxc4 7. Bxc4 b5 8. Be2 Bb7 9. Rc1 a6 10. a3 c5 11. 0-0 c4 12. Na2 Bd6 13. Bb4 Qe7 14. Ne1 0-0 15. f3 Nd5 16. Bd2 f5 17. e4 Qh4 18. g3 Bxg3 19. hxg3 Qxg3+ 20. Ng2 Rf6 21. Qe1 Qh3 22. Qh4 Qxh4 23. Nxh4 N5b6 24. Nc3 h6 25. Kh2 g5 26. Rg1 Kh7 27. Ng2 f4 28. Ne1 e5 29. d5 Nc5 30. Bd1 Rg8 31. Na2 Rfg6 32. Bc3 Nbd7 33. Bb4 h5 34. Rc2 g4 35. fxg4 hxg4 36. Nc3 Nxe4 37. Nxe4 Bxd5 38. Rxg4 Rh6+ 39. Kg1 Rxg4+ 40. Bxg4 Bxe4 41. Rh2 Rxh2 42. Kxh2 Bc6 43. Be6 Kg6 44. Nf3 Kf6 45. Bxd7 Bxd7 46. Bd6 Kf5 47. Bc7 Ke4 48. Kg2 Ke3 49. Bb6+ Ke2 1-0

[Event "Rio de Janeiro Estadual U20"]
[Site "Rio de Janeiro"]
[Date "2000.04.02"]
[Round "?"]
[White "Siviotti, Leonardo"]
[Black "Vilela, Vinicius"]
[Result "1/2-1/2"]
[ECO "E87"]
[WhiteElo "1940"]
[BlackElo "1882"]
[PlyCount "83"]
[EventDate "2000.04.??"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. d5 Nh5 8. Qd2 f5 9. exf5 gxf5 10. Bh6 Qh4+ 11. g3 Nxg3 12. Qf2 Qxh6 13. Qxg3 Qe3+ 14. Be2 Rf6 15. Qf2 Qxf2+ 16. Kxf2 f4 17. h4 Bf5 18. Bf1 Nd7 19. Bh3 Nc5 20. Bxf5 Rxf5 21. Rd1 a6 22. b4 Nd7 23. Ne4 h6 24. Ne2 Rff8 25. Rhg1 Kf7 26. N2c3 b6 27. Rd2 Rg8 28. c5 bxc5 29. bxc5 Nxc5 30. Nxc5 dxc5 31. Ne4 Bf8 32. Rc1 Bd6 33. Nxc5 Rg6 34. Ke2 Rg2+ 35. Kd3 Rxd2+ 36. Kxd2 Rg8 37. Nxa6 Rg2+ 38. Kd3 Rxa2 39. Nxc7 Ra3+ 40. Ke2 Re3+ 41. Kf2 Be7 42. h5 1/2-1/2

[Event "Rio de Janeiro Estadual U20"]
[Site "Rio de Janeiro"]
[Date "2000.04.01"]
[Round "?"]
[White "Siviotti, Leonardo"]
[Black "Le Masson, Rafael"]
[Result "1-0"]
[ECO "A52"]
[WhiteElo "1940"]
[BlackElo "1682"]
[PlyCount "55"]
[EventDate "2000.04.??"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Qd5 Bb4+ 5. Nc3 Qe7 6. Nf3 Bc5 7. e3 Nc6 8. a3 Ngxe5 9. Nxe5 Qxe5 10. Nb5 Bd6 11. Nxd6+ cxd6 12. Bd3 Ne7 13. Qf3 Rb8 14. 0-0 b6 15. e4 Ng6 16. Qe3 Bb7 17. f4 Qe7 18. Bd2 0-0 19. Qd4 Rfe8 20. Bb4 Rbc8 21. Bxd6 Qh4 22. f5 Ne7 23. Rf4 Qg5 24. h3 h5 25. Qf2 f6 26. Rf3 h4 27. Rf4 Kf7 28. Rg4 1-0

[Event "Rio de Janeiro tt U20"]
[Site "Rio de Janeiro"]
[Date "1999.??.??"]
[Round "3"]
[White "Siviotti, Leonardo"]
[Black "Mafra, Kaiser Luiz"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "110"]
[EventDate "1999.??.??"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Qb6 5. Qc1 cxd4 6. exd4 Nc6 7. c3 Bf5 8. Nbd2 Rc8 9. a3 a5 10. Be2 e6 11. Bd1 Be7 12. 0-0 0-0 13. Re1 Nd7 14. Be3 Bf6 15. h3 h6 16. Nb3 Rfd8 17. Qd2 Qa7 18. Qe2 a4 19. Nbd2 Nb6 20. Rc1 Na5 21. Bc2 Bxc2 22. Rxc2 Nbc4 23. Nxc4 Nxc4 24. Bc1 Qb6 25. Ne5 Nxe5 26. dxe5 Be7 27. Be3 Bc5 28. Qg4 Bxe3 29. Rxe3 Rc4 30. Qe2 Qb3 31. Rd2 Rdc8 32. g3 Qb6 33. Kh2 Qc6 34. Qd1 b5 35. Rd4 Rxd4 36. Qxd4 Qc4 37. Rd3 Qb3 38. Rd2 Rc4 39. Qb6 Re4 40. f4 b4 41. axb4 a3 42. bxa3 Qxc3 43. Rg2 Qxa3 44. b5 Re1 45. h4 Qc1 46. Rf2 Rh1+ 47. Kg2 Qg1+ 48. Kf3 Rh3 49. Qd8+ Kh7 50. Rg2 Qd1+ 51. Ke3 Qb3+ 52. Kf2 Qc2+ 53. Kf3 Qe4+ 54. Kf2 d4 55. Kf1 Rh1+ 0-1

[Event "Rio de Janeiro tt U20"]
[Site "Rio de Janeiro"]
[Date "1999.??.??"]
[Round "4"]
[White "Siviotti, Leonardo"]
[Black "Zarza, Ronald"]
[Result "1-0"]
[ECO "D97"]
[PlyCount "115"]
[EventDate "1999.??.??"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3 dxc4 5. Qxc4 Bg7 6. Nf3 0-0 7. e4 a6 8. e5 b5 9. Qb3 Nfd7 10. Be3 Nb6 11. Bd3 Be6 12. Qc2 Nc6 13. a3 Na5 14. Be4 Bb3 15. Qd3 Rc8 16. Nd2 Nbc4 17. Nxb3 Nxb3 18. Rb1 c5 19. Ne2 Nxd4 20. Bxd4 cxd4 21. f4 Qa5+ 22. b4 Qc7 23. h4 Ne3 24. h5 Qc4 25. hxg6 hxg6 26. Qd2 Nc2+ 27. Kf2 Rcd8 28. Bd3 Qd5 29. Bxc2 d3 30. Bb3 Qb7 31. Ng3 Qb6+ 32. Qe3 Rd4 33. Ne4 Rfd8 34. Kg3 Qc6 35. Ng5 e6 36. Rbc1 Qb7 37. Bxe6 d2 38. Rc3 fxe6 39. Rd1 Qd5 40. Nf3 Rd3 41. Rxd3 Qxd3 42. Qxd3 Rxd3 43. Rxd2 Rxa3 44. Rd8+ Kf7 45. Rd7+ Kf8 46. Kg4 Bh6 47. Nd4 Ke8 48. Rd6 Bf8 49. Rxe6+ Kf7 50. Rf6+ Kg8 51. Rxg6+ Kh7 52. Kf5 Bxb4 53. Nc2 Rb3 54. Nxb4 Rxb4 55. Rxa6 Rb1 56. e6 b4 57. e7 Re1 58. Re6 1-0

[Event "Rio de Janeiro tt U20"]
[Site "Rio de Janeiro"]
[Date "1999.??.??"]
[Round "5"]
[White "Zapata, Diego"]
[Black "Siviotti, Leonardo"]
[Result "0-1"]
[ECO "B20"]
[PlyCount "66"]
[EventDate "1999.??.??"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. b4 cxb4 3. d4 d5 4. e5 Nc6 5. f4 Bf5 6. Nf3 e6 7. Bd3 Nge7 8. a3 Bxd3 9. Qxd3 Qb6 10. Be3 Rc8 11. 0-0 Nf5 12. Bf2 a6 13. Nbd2 bxa3 14. c3 Na5 15. Rfb1 Qc7 16. Nb3 b5 17. g4 Nh6 18. h3 Qxc3 19. Qxc3 Rxc3 20. Nxa5 Rxf3 21. Kg2 Rc3 22. Nb7 Kd7 23. Rc1 Rxc1 24. Rxc1 Be7 25. Nc5+ Bxc5 26. dxc5 Kc6 27. Be1 a5 28. Bxa5 Ra8 29. Bc3 Ra4 30. Rf1 b4 31. Ba1 b3 32. f5 b2 33. fxe6 fxe6 0-1

