[Event "Jundiai op"]
[Site "Jundiai"]
[Date "2023.04.16"]
[Round "5"]
[White "Sanchez, Ivan Roberto"]
[Black "Rodrigues, Leonardo De Miranda"]
[Result "0-1"]
[ECO "A43"]
[WhiteElo "1744"]
[BlackElo "2061"]
[PlyCount "50"]
[EventDate "2023.04.14"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 c5 2. Nf3 cxd4 3. Nxd4 d5 4. e3 e5 5. Nb3 Nc6 6. Be2 Nf6 7. N1d2 Bf5 8. c3 h5 9. h3 a6 10. Nf3 Rc8 11. 0-0 Bd6 12. Ne1 Qd7 13. Nd3 Ne4 14. Bd2 Bxh3 15. Be1 Rh6 16. Bxh5 Qf5 17. f3 Qxh5 18. fxe4 Bg4 19. Rf3 Qh1+ 20. Kf2 Rh2 21. Rg3 Bxd1 22. Rxd1 dxe4 23. Ndc1 Be7 24. Ke2 Rxg2+ 25. Rxg2 Qxg2+ 0-1

[Event "Jundiai op"]
[Site "Jundiai"]
[Date "2023.04.16"]
[Round "4"]
[White "Usui, Gabriella Yumi"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "E65"]
[WhiteElo "1526"]
[BlackElo "1744"]
[PlyCount "118"]
[EventDate "2023.04.14"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Nbd7 7. Nc3 c5 8. e3 Rb8 9. b3 a6 10. a4 Qc7 11. Bb2 b6 12. Qe2 Bb7 13. d5 Rfe8 14. e4 h6 15. h3 Bc8 16. Ne1 Nh5 17. Kh2 Nf8 18. Nd3 f5 19. Rae1 e5 20. dxe6 Bxe6 21. Qd2 Nf6 22. exf5 Bxf5 23. Nd5 Nxd5 24. Bxd5+ Kh7 25. Bxg7 Qxg7 26. Nf4 Bd7 27. Rxe8 Rxe8 28. Re1 Re5 29. Rxe5 Qxe5 30. Qe3 Kg7 31. Kg2 Qxe3 32. fxe3 g5 33. Nh5+ Kg6 34. g4 Bc8 35. Kf3 Ne6 36. Ke4 Nc7 37. Bg8 Bb7+ 38. Bd5 Nxd5 39. cxd5 Bc8 40. Ng3 Bd7 41. Nf1 h5 42. gxh5+ Kxh5 43. Ng3+ Kg6 44. Kf3 Bxh3 45. Ne4 Kf5 46. Nxd6+ Ke5 47. Nc4+ Kxd5 48. Nxb6+ Kc6 49. Nc4 Be6 50. Nd2 Kd5 51. Nc4 Bf5 52. Nd2 Bh3 53. Kg3 Be6 54. Kf2 Ke5 55. Nf3+ Kf6 56. Nd2 Kg6 57. Ne4 c4 58. bxc4 Bxc4 59. Kf3 Bd5 0-1

[Event "Jundiai op"]
[Site "Jundiai"]
[Date "2023.04.15"]
[Round "3"]
[White "Sanchez, Ivan Roberto"]
[Black "Cardozo, Matheus Santos"]
[Result "1/2-1/2"]
[ECO "A39"]
[WhiteElo "1744"]
[BlackElo "1827"]
[PlyCount "57"]
[EventDate "2023.04.14"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. c4 c5 7. Nc3 cxd4 8. Nxd4 a6 9. Rb1 Qc7 10. b3 Nc6 11. Nc2 Rd8 12. Ne3 e6 13. b4 Ne5 14. Qb3 Bd7 15. Bb2 Bc6 16. Rfc1 Bxg2 17. Nxg2 Qxc4 18. Qa3 Rac8 19. Ne3 Qc6 20. Ncd5 Qe8 21. Nxf6+ Bxf6 22. f4 Nd7 23. Ng4 Qe7 24. Nxf6+ Nxf6 25. Qd3 e5 26. fxe5 dxe5 27. Qf3 Rxc1+ 28. Rxc1 Rd2 29. Rc8+ 1/2-1/2

[Event "Jundiai op"]
[Site "Jundiai"]
[Date "2023.04.15"]
[Round "2"]
[White "Sanchez, Ivan Roberto"]
[Black "Furlanetto, Augusto Cesar"]
[Result "1-0"]
[ECO "D18"]
[WhiteElo "1744"]
[BlackElo "1794"]
[PlyCount "125"]
[EventDate "2023.04.14"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Be7 8. 0-0 0-0 9. h3 Nbd7 10. Nh4 Be4 11. Nxe4 Nxe4 12. Nf3 Qc7 13. Qc2 Nef6 14. Bd2 Rac8 15. Rfc1 a5 16. Bd3 h6 17. e4 e5 18. Bc3 Bd6 19. Qd2 b6 20. Qe2 c5 21. dxc5 Bxc5 22. Nd2 Qb8 23. Nc4 Rfe8 24. Qe1 Nf8 25. b4 axb4 26. Bxb4 Bxb4 27. Qxb4 Red8 28. Bc2 Rd4 29. Bb3 Nxe4 30. Qe7 Re8 31. Qa3 Nc5 32. Nxb6 Nfe6 33. Bxe6 Nxe6 34. a5 Red8 35. Qc3 Nf4 36. Re1 Qb7 37. Qf3 Qxf3 38. gxf3 Nxh3+ 39. Kh2 Ng5 40. Kg3 Rd3 41. Re3 R3d6 42. Rb3 e4 43. a6 Nxf3 44. a7 Rg6+ 45. Kf4 Rf6+ 46. Ke3 Nd4 47. a8Q Rxa8 48. Rxa8+ Kh7 49. Kxd4 Rxf2 50. Kxe4 f5+ 51. Ke3 Rf1 52. Ke2 Rf4 53. Nd5 Re4+ 54. Kf2 h5 55. Ra7 Kh6 56. Rb6+ g6 57. Raa6 Rg4 58. Ne7 h4 59. Rxg6+ Rxg6 60. Rxg6+ Kh5 61. Rg8 f4 62. Kf3 h3 63. Nd5 1-0

[Event "Jundiai op"]
[Site "Jundiai"]
[Date "2023.04.14"]
[Round "1"]
[White "Slater, Graeme"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "D78"]
[WhiteElo "1172"]
[BlackElo "1744"]
[PlyCount "80"]
[EventDate "2023.04.14"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d5 6. c4 c6 7. b3 Qb6 8. Bb2 dxc4 9. Nbd2 cxb3 10. Nxb3 Nbd7 11. Rc1 a5 12. Qc2 Re8 13. Rfe1 e5 14. e3 a4 15. Nbd2 exd4 16. Bxd4 Qd8 17. Red1 Qe7 18. Ng5 h6 19. Nge4 Nxe4 20. Nxe4 Bxd4 21. Rxd4 Nf6 22. Nxf6+ Qxf6 23. Rxa4 Be6 24. Rb1 Rxa4 25. Qxa4 Qc3 26. h3 b5 27. Qe4 Rc8 28. Qd4 Qxd4 29. exd4 Bxa2 30. Rc1 Bc4 31. d5 c5 32. d6 Rd8 33. Rd1 Be6 34. Bc6 b4 35. Bb5 c4 36. Rb1 b3 37. Rc1 Rxd6 38. Bxc4 Bxc4 39. Rxc4 Rd1+ 40. Kg2 b2 0-1

[Event "Mogi Guacu City-ch 3rd"]
[Site "Mogi Guacu"]
[Date "2023.03.19"]
[Round "8"]
[White "Muniz, Henrique Rocha"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "1567"]
[BlackElo "1730"]
[PlyCount "56"]
[EventDate "2023.03.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. e4 e5 8. d5 0-0 9. Qc2 b6 10. Be2 a5 11. 0-0 Nbd7 12. b4 Nh5 13. g3 Ndf6 14. Rfc1 Ne8 15. c5 axb4 16. axb4 Rxa1 17. Rxa1 bxc5 18. bxc5 f5 19. cxd6 Nxd6 20. Nh4 Nf4 21. Bf3 fxe4 22. Nxe4 Nxd5 23. Nxd6 Qxd6 24. Bxd5+ Qxd5 25. Qxc7 Bb7 26. f3 Qd4+ 27. Kg2 Qb2+ 28. Kh3 Bc8+ 0-1

[Event "Mogi Guacu City-ch 3rd"]
[Site "Mogi Guacu"]
[Date "2023.03.19"]
[Round "9"]
[White "Sanchez, Ivan Roberto"]
[Black "Chagas, Diogo Martin"]
[Result "1/2-1/2"]
[ECO "E91"]
[WhiteElo "1730"]
[BlackElo "1850"]
[PlyCount "124"]
[EventDate "2023.03.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 d6 2. c4 Nf6 3. Nc3 g6 4. e4 Bg7 5. Nf3 0-0 6. Be2 c5 7. d5 a6 8. h3 Bd7 9. Qc2 Ne8 10. 0-0 Nc7 11. Na4 Bxa4 12. Qxa4 b5 13. Qa5 Nd7 14. Rb1 Ne5 15. Nxe5 Bxe5 16. Be3 Bg7 17. f4 bxc4 18. Bxc4 Rb8 19. b4 Bd4 20. Bxd4 cxd4 21. Rfd1 Nb5 22. Qxd8 Rfxd8 23. Bxb5 Rxb5 24. Rxd4 Kf8 25. Rc4 Rdb8 26. Kf2 R5b7 27. Ke3 e6 28. Kd4 Ke7 29. a4 h5 30. Kc3 Rb6 31. Rc6 f5 32. Rxb6 Rxb6 33. Kd4 Kf6 34. e5+ Ke7 35. dxe6 Kxe6 36. exd6 Rxd6+ 37. Kc5 Rd5+ 38. Kb6 Rd6+ 39. Ka5 Kd7 40. Rc1 Rd4 41. b5 axb5 42. axb5 Rxf4 43. b6 Rf2 44. b7 Ra2+ 45. Kb6 Rb2+ 46. Ka7 Ra2+ 47. Kb8 Rxg2 48. Rd1+ Ke6 49. Rd4 Ke5 50. Rb4 Rc2 51. Ka7 Rc7 52. h4 f4 53. Rb6 f3 54. Rb1 Kf4 55. Kb6 Rxb7+ 56. Kxb7 Kg3 57. Kc6 Kxh4 58. Kd5 Kg3 59. Ke4 g5 60. Rg1+ Kh2 61. Rxg5 f2 62. Rxh5+ Kg2 1/2-1/2

[Event "Mogi Guacu City-ch 3rd"]
[Site "Mogi Guacu"]
[Date "2023.03.19"]
[Round "7"]
[White "Sanchez, Ivan Roberto"]
[Black "Pereira, Thiago Henrique"]
[Result "1-0"]
[ECO "A17"]
[WhiteElo "1730"]
[BlackElo "1750"]
[PlyCount "91"]
[EventDate "2023.03.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. g3 c6 4. e4 d5 5. cxd5 exd5 6. exd5 Nxd5 7. Bg2 Nxc3 8. dxc3 Qxd1+ 9. Kxd1 Bc5 10. Nh3 0-0 11. Re1 Be6 12. b3 Na6 13. Ke2 Bxh3 14. Bxh3 Rfe8+ 15. Kf1 Rxe1+ 16. Kxe1 Re8+ 17. Kf1 Nc7 18. b4 Bb6 19. c4 Bd4 20. Rb1 Na6 21. Bd7 Rd8 22. Bg4 c5 23. a3 cxb4 24. axb4 Bc3 25. Be3 Nxb4 26. Rb3 Na2 27. Ra3 Bb4 28. Rxa2 a5 29. Bf3 Rc8 30. Bd5 g6 31. Bh6 b6 32. Be3 Bc5 33. Bxc5 Rxc5 34. Rb2 a4 35. Rxb6 Ra5 36. Rb2 a3 37. Ra2 Kf8 38. Ke2 f5 39. Kd3 Ke7 40. Kc3 Kd6 41. Kb4 Ra6 42. Rxa3 Rb6+ 43. Kc3 g5 44. Ra7 h5 45. Rg7 Rb1 46. Rxg5 1-0

[Event "Mogi Guacu City-ch 3rd"]
[Site "Mogi Guacu"]
[Date "2023.03.18"]
[Round "6"]
[White "Dos Santos, Joao Francisco"]
[Black "Sanchez, Ivan Roberto"]
[Result "1/2-1/2"]
[ECO "B44"]
[WhiteElo "1638"]
[BlackElo "1730"]
[PlyCount "33"]
[EventDate "2023.03.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. c4 g6 6. Nc3 Bg7 7. Ndb5 Nge7 8. Nd6+ Kf8 9. Be3 a6 10. Qd2 h6 11. f4 Qa5 12. Be2 f5 13. e5 Nxe5 14. fxe5 Qxe5 15. Nxc8 Qa5 16. Nd6 Qe5 17. Bf4 1/2-1/2

[Event "Mogi Guacu City-ch 3rd"]
[Site "Mogi Guacu"]
[Date "2023.03.18"]
[Round "4"]
[White "Nunes, Kemuel Wesley"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "A23"]
[WhiteElo "1800"]
[BlackElo "1730"]
[PlyCount "64"]
[EventDate "2023.03.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. c4 e5 2. g3 Bc5 3. Bg2 Nf6 4. Nc3 0-0 5. e3 c6 6. Nge2 d6 7. 0-0 Bg4 8. d4 Bb6 9. h3 Be6 10. b3 Qc8 11. Kh2 Rd8 12. Bb2 Bc7 13. Qc2 Bf5 14. e4 Bg6 15. d5 Na6 16. Rad1 Bb6 17. a3 Nc7 18. Na4 c5 19. Nxb6 axb6 20. Nc3 Ra5 21. Rc1 Qd7 22. Na4 Ra6 23. Rfe1 b5 24. cxb5 Nxb5 25. Bf1 Ra7 26. Nb6 Qe8 27. a4 Nc7 28. b4 Nfxd5 29. bxc5 Nb4 30. Qb3 dxc5 31. Rxc5 Nc6 32. Bxe5 Na6 0-1

[Event "Mogi Guacu City-ch 3rd"]
[Site "Mogi Guacu"]
[Date "2023.03.18"]
[Round "5"]
[White "Sanchez, Ivan Roberto"]
[Black "Trindade, Renan"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1730"]
[BlackElo "1767"]
[PlyCount "61"]
[EventDate "2023.03.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. Nf3 Nc6 2. d4 d5 3. g3 Nf6 4. Bg2 Bf5 5. c3 e6 6. Qa4 Bd6 7. Ne5 Bxe5 8. dxe5 Nd7 9. f4 0-0 10. Be3 f6 11. exf6 Nxf6 12. Nd2 h6 13. 0-0 Ng4 14. Bc5 Re8 15. h3 Nf6 16. Rad1 Bg6 17. e4 Qd7 18. Nb3 a6 19. exd5 Nxd5 20. c4 b5 21. cxb5 axb5 22. Qxb5 Rxa2 23. Nd4 Ra5 24. Qxc6 Qxc6 25. Nxc6 Rxc5 26. Ne5 Bh7 27. Rc1 Rb5 28. Rf2 Reb8 29. Bxd5 exd5 30. Rxc7 Rxb2 31. Rxb2 1-0

[Event "Mogi Guacu City-ch 3rd"]
[Site "Mogi Guacu"]
[Date "2023.03.18"]
[Round "3"]
[White "Sanchez, Ivan Roberto"]
[Black "Vaz, Pedro Henrique Lins"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1730"]
[BlackElo "1801"]
[PlyCount "111"]
[EventDate "2023.03.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. Nbd2 Nbd7 7. b3 b6 8. Bb2 Bb7 9. c4 e6 10. Rc1 a5 11. Qc2 c6 12. Rfd1 Rc8 13. e4 dxe4 14. Nxe4 Nxe4 15. Qxe4 Nf6 16. Qe1 Nd7 17. Ba3 Re8 18. Ne5 Rc7 19. Bd6 Rc8 20. a4 Bf8 21. Bxf8 Nxf8 22. Qd2 Kg7 23. Ng4 f5 24. Qh6+ Kg8 25. Ne5 Qf6 26. h4 Qg7 27. Qd2 Nd7 28. Nxd7 Qxd7 29. c5 Qc7 30. cxb6 Qxb6 31. Rc5 Ra8 32. Qc3 Rec8 33. Bf1 Qb4 34. Qxb4 axb4 35. Rc4 Ba6 36. Rxb4 Bxf1 37. Kxf1 Rab8 38. Rxb8 Rxb8 39. Rd3 Kf7 40. Ke2 Ke7 41. f4 Kd6 42. Rc3 Rb4 43. Kd3 h6 44. Ke3 Rb7 45. Kd2 Rb4 46. Rd3 Kd5 47. Kc3 c5 48. dxc5+ Kxc5 49. Re3 Rb6 50. Re5+ Kd6 51. a5 Rc6+ 52. Kb4 g5 53. hxg5 hxg5 54. Re3 gxf4 55. gxf4 Rc5 56. Rxe6+ 1-0

[Event "Mogi Guacu City-ch 3rd"]
[Site "Mogi Guacu"]
[Date "2023.03.17"]
[Round "1"]
[White "Caetano, Heitor Luiz"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "1805"]
[BlackElo "1730"]
[PlyCount "86"]
[EventDate "2023.03.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 Nc6 4. Bb5 Qb6 5. Ba4 g6 6. 0-0 Bg7 7. Na3 Nge7 8. Nc4 Qc7 9. Bb3 0-0 10. d4 cxd4 11. cxd4 d5 12. exd5 Nxd5 13. Re1 b5 14. Nce5 Bb7 15. Bxd5 exd5 16. Bf4 Qd8 17. Qd3 a6 18. Re2 Ne7 19. Rae1 Nf5 20. g4 Nd6 21. Qd2 Ne4 22. Qc1 Rc8 23. Qe3 Re8 24. Nd2 f6 25. Nxe4 fxe5 26. Bg5 exd4 27. Qd2 Qd7 28. Ng3 Rxe2 29. Qxe2 d3 30. Qxd3 Qxg4 31. Bd2 Qc4 32. Qe3 d4 33. Qe7 Qc6 34. f3 Bf6 35. Qe6+ Qxe6 36. Rxe6 Kf7 37. Rb6 Rc7 38. Ne4 Bxe4 39. fxe4 Rc2 40. Bb4 Rxb2 41. Rb7+ Ke8 42. Bc5 Rxa2 43. Rb8+ Kd7 0-1

[Event "Mogi Guacu City-ch 3rd"]
[Site "Mogi Guacu"]
[Date "2023.03.17"]
[Round "2"]
[White "Escanavaqui, Joao Pedro Torriani"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "E43"]
[WhiteElo "1738"]
[BlackElo "1730"]
[PlyCount "62"]
[EventDate "2023.03.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Nf3 b6 6. Be2 Bxc3+ 7. bxc3 Bb7 8. 0-0 d6 9. Ba3 Nbd7 10. Qb3 Ne4 11. d5 e5 12. Bd3 Nec5 13. Bxc5 Nxc5 14. Qc2 h6 15. e4 Qf6 16. Rab1 Rae8 17. Nd2 Bc8 18. Nb3 Nd7 19. g3 g5 20. Qd2 Qg6 21. f3 Nf6 22. g4 Kg7 23. Qe3 Rh8 24. c5 dxc5 25. Rbd1 h5 26. Bb5 Rd8 27. Kf2 hxg4 28. Rh1 Rh3 29. Ke2 Rxf3 30. Qc1 Qxe4+ 31. Kd2 Rf2+ 0-1

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.29"]
[Round "10"]
[White "Sanchez, Ivan Roberto"]
[Black "Ibanez, Marcelo"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "1731"]
[BlackElo "2014"]
[PlyCount "78"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 c5 5. Bg2 Nc6 6. cxd5 exd5 7. 0-0 Be6 8. Nbd2 Be7 9. Qc2 Nb4 10. Qb1 Qc8 11. Ng5 Bf5 12. e4 dxe4 13. Ngxe4 cxd4 14. Nxf6+ gxf6 15. Be4 Nc2 16. Bxf5 Qxf5 17. a3 d3 18. Ra2 0-0 19. Nc4 Rac8 20. Ne3 Qe4 21. b4 Rfd8 22. Ng2 d2 23. Bb2 Qf3 24. Nh4 d1Q 25. Nxf3 Qxf3 26. Bxf6 Bxf6 27. Rxc2 Rxc2 28. Qxc2 Qxa3 29. Qe4 Qa6 30. h4 Qc6 31. Qg4+ Bg7 32. Qf5 Qd5 33. Qc2 Bf8 34. Qe2 a6 35. h5 h6 36. Rc1 Qe6 37. Qc4 Rd1+ 38. Kg2 Rxc1 39. Qxc1 Qc6+ 0-1

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.28"]
[Round "9"]
[White "Fischer, Ivo Lucio"]
[Black "Sanchez, Ivan Roberto"]
[Result "1/2-1/2"]
[ECO "E20"]
[WhiteElo "1926"]
[BlackElo "1731"]
[PlyCount "79"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 h6 7. cxd5 exd5 8. e3 0-0 9. Bd3 Re8 10. Ne2 Nc6 11. 0-0 Ne7 12. Ng3 c5 13. Ra2 cxd4 14. exd4 Qc7 15. Bd2 Be6 16. Re1 Nc6 17. Bb1 Na5 18. Ne2 Nc4 19. Bf4 Qe7 20. Ng3 Nxa3 21. Nf5 Qd7 22. Nxh6+ gxh6 23. Rxa3 Nh5 24. Bxh6 Kh8 25. Re5 f5 26. f4 Qf7 27. c4 Rg8 28. Rh3 Rg4 29. Rxe6 Qxe6 30. Rxh5 Qg6 31. Rh3 Rxg2+ 32. Kh1 Qg4 33. Qxg4 fxg4 34. Rh5 Rb2 35. Bg5+ Kg7 36. Rh7+ Kg8 37. Bg6 Rb6 38. f5 Rf8 39. Rh4 Rb4 40. Rxg4 1/2-1/2

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.28"]
[Round "8"]
[White "Sanchez, Ivan Roberto"]
[Black "Barbosa, Rafael Santos"]
[Result "1-0"]
[ECO "D94"]
[WhiteElo "1731"]
[BlackElo "1816"]
[PlyCount "132"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. e3 0-0 6. Bd3 c5 7. 0-0 cxd4 8. Nxd4 Nc6 9. Nxc6 bxc6 10. Rb1 Ba6 11. Qa4 dxc4 12. Bxc4 Bxc4 13. Qxc4 Qb6 14. b3 Rfd8 15. Ba3 e6 16. Rbd1 Nd5 17. Na4 Qb5 18. Qc1 Bf8 19. Bxf8 Kxf8 20. Rd4 Nb6 21. Rfd1 Rxd4 22. Rxd4 Nxa4 23. Rxa4 Qb6 24. Qa3+ Kg8 25. Ra6 Qb7 26. Qa4 c5 27. h3 Kg7 28. Rc6 Qb4 29. Qxb4 cxb4 30. Ra6 Kf8 31. Kf1 Ke8 32. Ke2 Kd8 33. Kd3 Kc7 34. Kc4 Kb7 35. Ra5 Rb8 36. Kxb4 Kc6+ 37. Kc3 Kb6 38. Ra4 a5 39. Rc4 Rd8 40. Kc2 Rd7 41. Rc8 Ra7 42. Rc4 Rd7 43. Rc3 Ra7 44. Kd3 Rd7+ 45. Ke2 Kb5 46. Rc2 a4 47. bxa4+ Kxa4 48. Kf3 h5 49. h4 Ka3 50. Kf4 Rb7 51. Ke5 Rd7 52. Kf6 Rb7 53. Rd2 Rc7 54. Kg7 Rb7 55. Kf8 e5 56. Kg7 e4 57. Kf6 Rc7 58. f3 exf3 59. gxf3 Rc3 60. Re2 Rc7 61. e4 Rc3 62. Rf2 Rc7 63. Rd2 Rc3 64. Kxf7 Rxf3+ 65. Kxg6 Rf4 66. Kxh5 Rxe4 1-0

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.27"]
[Round "7"]
[White "De Souza, Paulo Goncalves"]
[Black "Sanchez, Ivan Roberto"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "1800"]
[BlackElo "1731"]
[PlyCount "93"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. e4 c5 2. c3 d6 3. d4 cxd4 4. cxd4 Nf6 5. Nc3 e6 6. Nf3 Be7 7. Bd3 a6 8. 0-0 0-0 9. Re1 Nbd7 10. e5 Ne8 11. h4 Bxh4 12. Nxh4 Qxh4 13. g3 Qe7 14. Bxh7+ Kxh7 15. Qh5+ Kg8 16. Kg2 g6 17. Qh3 f5 18. Rh1 Qg7 19. Bh6 Qh7 20. Bxf8 Qxh3+ 21. Rxh3 Nxf8 22. Rah1 b5 23. f3 Bb7 24. Kf2 Rc8 25. a3 Rc7 26. Rg1 Rh7 27. Rxh7 Kxh7 28. g4 Nd7 29. gxf5 gxf5 30. f4 dxe5 31. fxe5 Nb6 32. b3 Ng7 33. Rc1 Kh6 34. Nd1 Bd5 35. Ne3 Bxb3 36. Rc6 Nc4 37. Nxc4 Bxc4 38. Rxa6 Kg5 39. Ra8 Kf4 40. Rg8 Nh5 41. Rh8 Ke4 42. Rxh5 Kxd4 43. Rh4+ Kc3 44. Ke3 Kb3 45. Kd4 Kxa3 46. Kc5 Kb3 47. Rf4 1/2-1/2

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.26"]
[Round "5"]
[White "Favaretto, Felipe Della Preve"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "A22"]
[WhiteElo "1207"]
[BlackElo "1731"]
[PlyCount "66"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 4. Bg2 Bxc3 5. bxc3 d6 6. e4 0-0 7. Ne2 Bg4 8. 0-0 Qc8 9. f3 Bh3 10. d3 Bxg2 11. Kxg2 Nc6 12. Bg5 Nd7 13. Be3 b6 14. Ng1 Qe8 15. Nh3 f6 16. f4 Na5 17. f5 Nb7 18. g4 Ndc5 19. Rb1 a5 20. Kh1 Rd8 21. Rg1 Qc6 22. Bxc5 dxc5 23. g5 Nd6 24. Qg4 Rd7 25. gxf6 Rxf6 26. Ng5 Nxf5 27. Nf3 Nh6 28. Qg3 Qd6 29. Nxe5 Re7 30. Ng4 Nxg4 31. Qxg4 Qxd3 32. Qc8+ Rf8 33. Rxg7+ Rxg7 0-1

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.26"]
[Round "6"]
[White "Sanchez, Ivan Roberto"]
[Black "Ccerhuayo Escobedo, Mels Leopold"]
[Result "0-1"]
[ECO "E38"]
[WhiteElo "1731"]
[BlackElo "1988"]
[PlyCount "56"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. Nf3 0-0 6. a3 Bxc3+ 7. Qxc3 Nc6 8. dxc5 Ne4 9. Qc2 Qa5+ 10. Bd2 Nxd2 11. Qxd2 Qxc5 12. Rc1 Rd8 13. e4 Qh5 14. Qd6 b6 15. Be2 Qg6 16. e5 Qe4 17. h4 h5 18. Rh3 Bb7 19. Kf1 Rac8 20. Bd3 Qf4 21. Rc3 f6 22. Bg6 Nxe5 23. Nxe5 fxe5 24. b3 Rf8 25. Rc2 Qg4 26. Bxh5 Qxg2+ 27. Ke1 Qxh3 28. Qxd7 Qh1+ 0-1

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.24"]
[Round "2"]
[White "Sanchez, Ivan Roberto"]
[Black "Silva, Guilherme Henrique"]
[Result "0-1"]
[ECO "E32"]
[WhiteElo "1731"]
[BlackElo "2034"]
[PlyCount "86"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. a3 Bxc3+ 6. Qxc3 Ne4 7. Qc2 f5 8. Nf3 d6 9. g3 Nd7 10. Bg2 Ndf6 11. 0-0 Qe8 12. b3 Qh5 13. Ra2 Bd7 14. Ne1 Bc6 15. Bf3 Ng4 16. Bxg4 fxg4 17. f3 gxf3 18. exf3 Ng5 19. Bxg5 Qxg5 20. Qd2 Qh5 21. Qe3 Rae8 22. Raf2 a6 23. Nd3 e5 24. dxe5 dxe5 25. Nb4 Bd7 26. Nd5 c6 27. Nc3 Qg6 28. Ne4 Bf5 29. Re1 Bxe4 30. Qxe4 Qd6 31. b4 h6 32. Qc2 Rd8 33. c5 Qd4 34. Kg2 Kh8 35. Re4 Qd5 36. Qb2 Rf5 37. Rfe2 Rdf8 38. Rd2 Qf7 39. Rxe5 Rxf3 40. Ree2 Rd3 41. Rf2 Qd5+ 42. Kg1 Rxf2 43. Rxf2 Rd1+ 0-1

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.23"]
[Round "1"]
[White "De Abreu, Wiliam"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "B55"]
[BlackElo "1731"]
[PlyCount "66"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Bd3 Nbd7 6. Be3 a6 7. h3 Nc5 8. Nd2 Nxd3+ 9. cxd3 Bd7 10. 0-0 e6 11. a4 Be7 12. f4 0-0 13. N2f3 Re8 14. e5 Nd5 15. Bd2 Qb6 16. Rb1 Rad8 17. Kh1 dxe5 18. fxe5 Bc5 19. Ne2 Ne3 20. Bxe3 Bxe3 21. d4 Bc6 22. Qd3 Bh6 23. b3 Rd7 24. h4 Bxf3 25. Qxf3 Rc8 26. Rbd1 Qc7 27. Qe4 Qc2 28. Rc1 Bxc1 29. Qf3 Qd2 30. d5 Qe3 31. dxe6 Qxf3 32. exf7+ Qxf7 33. Rxf7 Kxf7 0-1

[Event "BRA Amateur-ch U1800"]
[Site "Sao Paulo"]
[Date "2022.11.06"]
[Round "7"]
[White "De Freitas, Fabio Ruiz"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "1673"]
[BlackElo "1692"]
[PlyCount "146"]
[EventDate "2022.11.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. b3 g6 4. Bb2 Bg7 5. g3 0-0 6. Bg2 Nc6 7. 0-0 d5 8. cxd5 Nxd5 9. Bxg7 Kxg7 10. Qc1 Qd6 11. Nc3 b6 12. Nxd5 Qxd5 13. Qc3+ f6 14. Ne5 Qxe5 15. Qxe5 fxe5 16. Bxc6 Rb8 17. b4 cxb4 18. Rfc1 Rd8 19. Rc2 Bd7 20. Bxd7 Rxd7 21. d3 a5 22. Rac1 Rbb7 23. Rc6 Rd6 24. Rc8 Rd5 25. Ra8 Rb5 26. Rcc8 b3 27. axb3 Rxb3 28. Kg2 Ra3 29. Rg8+ Kf7 30. Rh8 b5 31. Rxh7+ Ke6 32. Ra6+ Kd7 33. Rxg6 Rc7 34. Rh5 b4 35. Rxe5 Rc6 36. Rgg5 a4 37. Rd5+ Kc7 38. Rge5 b3 39. Rxe7+ Kb6 40. Re8 Ra2 41. Rb8+ Ka6 42. Rdb5 Rxe2 43. Rb4 Ka7 44. R8b5 Ka6 45. h4 Rcc2 46. Rf5 Ra2 47. Rg4 Re6 48. Rb4 Rb6 49. Rff4 Rxb4 50. Rxb4 Ka5 51. Rb8 b2 52. h5 Ra3 53. Rxb2 Rxd3 54. g4 Rd4 55. Kg3 Rd1 56. h6 a3 57. Rb8 Rh1 58. g5 Ka4 59. Rb7 a2 60. Kg2 Rg1+ 61. Kf3 Rxg5 62. Rg7 Rh5 63. Kg4 Rxh6 64. Ra7+ Kb3 65. f4 Rb6 66. f5 Rb4+ 67. Kg5 Ra4 68. Rb7+ Ka3 69. f6 a1Q 70. Kg6 Qg1+ 71. Kf7 Qg5 72. Rb6 Ra7+ 73. Ke6 Qe3+ 0-1

[Event "BRA Amateur-ch U1800"]
[Site "Sao Paulo"]
[Date "2022.11.05"]
[Round "5"]
[White "Pereira, Rodrigo Ferreira"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "A20"]
[WhiteElo "1729"]
[BlackElo "1692"]
[PlyCount "106"]
[EventDate "2022.11.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 Bc5 4. Nf3 d6 5. Nc3 0-0 6. 0-0 Bg4 7. h3 Be6 8. d3 h6 9. Na4 Bb6 10. b4 c6 11. Rb1 Nbd7 12. Qc2 Bc7 13. Bb2 Nh7 14. d4 e4 15. Nd2 f5 16. Qc3 Nhf6 17. d5 cxd5 18. cxd5 Bxd5 19. Ba1 Rc8 20. Qb2 b5 21. Nc3 Bc6 22. Nb3 Bb6 23. Rbd1 Qe7 24. Nd4 Bxd4 25. Rxd4 Ne5 26. Rfd1 Nc4 27. Qb3 Kh7 28. e3 a6 29. a4 Nd7 30. Bf1 Nde5 31. Be2 Qg5 32. Nd5 Bxd5 33. Rxd5 f4 34. exf4 Rxf4 35. Kg2 Rcf8 36. Bd4 bxa4 37. Qc3 e3 38. Bxe3 Nxe3+ 39. Qxe3 Rxf2+ 40. Qxf2 Rxf2+ 41. Kxf2 Qf5+ 42. Kg2 Qe4+ 43. Kf2 Qxb4 44. Rxd6 a5 45. R6d5 Qc3 46. Rb5 a3 47. Rdd5 a2 48. Rxa5 a1Q 49. Rxa1 Qxa1 50. Rd1 Qa7+ 51. Kg2 Qe3 52. Bg4 Nxg4 53. hxg4 Qe2+ 0-1

[Event "BRA Amateur-ch U1800"]
[Site "Sao Paulo"]
[Date "2022.11.05"]
[Round "6"]
[White "Sanchez, Ivan Roberto"]
[Black "Cincotto, Fabio Henrique"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "1692"]
[BlackElo "1663"]
[PlyCount "89"]
[EventDate "2022.11.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 c6 7. 0-0 a6 8. Re1 b5 9. Qb3 Nbd7 10. a4 Qa5 11. e5 dxe5 12. dxe5 Ng4 13. cxb5 axb5 14. e6 Nc5 15. exf7+ Rxf7 16. Qd1 Be6 17. Bd2 Nb3 18. Bxb5 Nxd2 19. Qxd2 cxb5 20. Rxe6 Rd8 21. Qe1 b4 22. Nd1 Qd5 23. Re4 Nh6 24. Rxb4 Rxf3 25. gxf3 Qxf3 26. Qe6+ Kh8 27. Ne3 Rf8 28. Rf1 Nf5 29. Qe4 Qh3 30. Qg4 Qh6 31. Nxf5 gxf5 32. Qf4 Qg6+ 33. Qg3 Qe6 34. Rb8 Kg8 35. Rxf8+ Kxf8 36. Qf3 Bxb2 37. Qa8+ Kf7 38. a5 Be5 39. f4 Bd4+ 40. Kh1 Qe3 41. Qf3 Qe6 42. Rd1 Bf6 43. Qd5 Bc3 44. Qxe6+ Kxe6 45. a6 1-0

[Event "BRA Amateur-ch U1800"]
[Site "Sao Paulo"]
[Date "2022.11.04"]
[Round "4"]
[White "Hubner, Jessica Trindade"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "1725"]
[BlackElo "1692"]
[PlyCount "158"]
[EventDate "2022.11.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be6 8. Be3 Be7 9. 0-0 Nbd7 10. f3 Qc7 11. Nd5 Nxd5 12. exd5 Bf5 13. c4 0-0 14. f4 exf4 15. Bxf4 Bg6 16. Rc1 Qb6+ 17. Kh1 Bf6 18. Qd2 Rfe8 19. Bg4 Rad8 20. Bg5 Bxg5 21. Qxg5 Re5 22. Qd2 Nf6 23. Bf3 Bh5 24. Rce1 Rde8 25. Rxe5 Rxe5 26. Re1 Rxe1+ 27. Qxe1 Bxf3 28. gxf3 Qc7 29. Nd2 Kf8 30. Kg2 Qc8 31. Qg3 Qc7 32. b3 Qe7 33. Kf2 Nh5 34. Qg4 g6 35. Qd4 Kg8 36. b4 Qg5 37. Ke1 Nf4 38. Kd1 Qh4 39. c5 dxc5 40. bxc5 Qxh2 41. d6 Qe2+ 42. Kc2 Ne6 43. Qd5 Nd8 44. Kc3 Qe3+ 45. Kb4 Nc6+ 46. Ka4 Qd4+ 47. Qxd4 Nxd4 48. Ka5 Ne6 49. Kb6 Kf8 50. c6 bxc6 51. Kxa6 Ke8 52. Kb6 Kd7 53. Nc4 f6 54. a4 h5 55. a5 Nd4 56. a6 Nb5 57. Na3 Nxd6 58. Nc2 h4 59. Ne3 h3 60. Nf1 Nc8+ 61. Kc5 Kc7 62. Nh2 Na7 63. Nf1 g5 64. Nh2 f5 65. Kd4 Kd6 66. Ke3 Ke5 67. Nf1 c5 68. Kf2 c4 69. Ne3 c3 70. Nc2 Kf4 71. Nd4 h2 72. Kg2 h1Q+ 73. Kxh1 Ke3 74. Nc2+ Kxf3 75. Kg1 Ke2 76. Nd4+ Kd3 77. Nb3 c2 78. Kf2 Kc3 79. Nc1 Kd2 0-1

[Event "BRA Amateur-ch U1800"]
[Site "Sao Paulo"]
[Date "2022.11.04"]
[Round "3"]
[White "Sanchez, Ivan Roberto"]
[Black "Spieker, Otavio Schmidt"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "1692"]
[BlackElo "1205"]
[PlyCount "98"]
[EventDate "2022.11.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 0-0 7. Bd3 Nbd7 8. Nge2 h6 9. Bh4 b6 10. 0-0 Bb7 11. Rc1 c5 12. Bb1 Ne4 13. Bxe7 Qxe7 14. dxc5 Nxc3 15. Nxc3 Qxc5 16. Qc2 Nf6 17. Rfd1 Rac8 18. Rd4 Rfd8 19. Qf5 Qb5 20. Rc2 Qd7 21. Rcd2 Qxf5 22. Bxf5 Rc5 23. f3 Re8 24. Kf2 Kf8 25. Bc2 b5 26. Bb3 Rec8 27. Nxd5 Nxd5 28. Bxd5 Bxd5 29. Rxd5 Rxd5 30. Rxd5 Rc2+ 31. Ke1 Rxb2 32. Rd2 Rxd2 33. Kxd2 Ke7 34. Kc3 Kd6 35. Kb4 Kc6 36. Ka5 Kb7 37. Kxb5 a6+ 38. Kc5 Kc7 39. h4 g6 40. g4 f6 41. e4 Kd7 42. Kb6 Ke6 43. Kxa6 Ke5 44. Kb5 Kf4 45. a4 Kxf3 46. a5 Kxg4 47. a6 Kxh4 48. a7 g5 49. a8Q Kg4 1-0

[Event "BRA Amateur-ch U1800"]
[Site "Sao Paulo"]
[Date "2022.11.03"]
[Round "2"]
[White "Brujin, Homero"]
[Black "Sanchez, Ivan Roberto"]
[Result "1/2-1/2"]
[ECO "E21"]
[WhiteElo "1443"]
[BlackElo "1692"]
[PlyCount "67"]
[EventDate "2022.11.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 Bxc3+ 5. bxc3 d6 6. Bg5 Qe7 7. e3 Nbd7 8. Be2 b6 9. 0-0 Bb7 10. Nd2 e5 11. Qc2 0-0 12. Rab1 Rfe8 13. Bg4 Rad8 14. Bxd7 Rxd7 15. d5 h6 16. Bxf6 gxf6 17. Ne4 Bc8 18. Ng3 Rdd8 19. e4 Kh8 20. Qe2 Rg8 21. f4 Rg4 22. f5 Rdg8 23. Rf2 Rh4 24. Nf1 Rgg4 25. Nd2 Qe8 26. g3 Qg8 27. Rg2 Rh3 28. Qf3 Qg5 29. Qf2 a5 30. Kh1 Ba6 31. a4 Qh5 32. Qe2 Qg5 33. Nf3 Qg8 34. Nd2 1/2-1/2

[Event "BRA Amateur-ch U1800"]
[Site "Sao Paulo"]
[Date "2022.11.03"]
[Round "1"]
[White "Sanchez, Ivan Roberto"]
[Black "Medola, Eduarda Migliorini"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1692"]
[BlackElo "1403"]
[PlyCount "123"]
[EventDate "2022.11.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. g3 Bd6 5. Bg2 0-0 6. 0-0 c5 7. c3 Nbd7 8. Qc2 Qc7 9. e4 dxe4 10. Nxe4 Nxe4 11. Qxe4 h6 12. Be3 Nf6 13. Qc2 Bd7 14. dxc5 Bxc5 15. Bf4 Bd6 16. Bxd6 Qxd6 17. Rfd1 Qc7 18. Nd4 Rac8 19. Qb3 e5 20. Nb5 Bxb5 21. Qxb5 b6 22. Rd2 Rcd8 23. Rad1 Rxd2 24. Rxd2 Re8 25. Qc6 Qxc6 26. Bxc6 Rc8 27. Bb7 Rb8 28. Bg2 Kf8 29. Kf1 g5 30. Re2 Re8 31. Bc6 Re6 32. Bb7 Re7 33. Bc8 h5 34. Rd2 Kg7 35. Bf5 Re8 36. Ke2 g4 37. Kd1 Re7 38. Kc2 Nh7 39. h4 Nf6 40. a4 e4 41. Re2 a5 42. c4 Kf8 43. Kc3 Re5 44. Bc8 Ne8 45. Kd4 Rc5 46. Ba6 f5 47. Ke3 Nd6 48. b3 Ke7 49. Kf4 Kf6 50. Rd2 Nf7 51. Rd7 Ke6 52. Rb7 Rc6 53. c5 Kf6 54. Rxb6 Rxb6 55. cxb6 Nd6 56. b7 Nxb7 57. Bxb7 Ke6 58. Bc8+ Kd5 59. Bxf5 Kd4 60. Bxe4 Kc3 61. Bd5 Kd2 62. f3 1-0

[Event "BRA-ch U2000 Amateurs"]
[Site "Sao Paulo"]
[Date "2022.06.18"]
[Round "6"]
[White "De Napole, Jo"]
[Black "Sanchez, Ivan Roberto"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "1733"]
[BlackElo "1720"]
[PlyCount "57"]
[EventDate "2022.06.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 d6 2. Nf3 g6 3. d4 Bg7 4. Be2 Nf6 5. 0-0 Nxe4 6. Bf4 0-0 7. Nbd2 Nxd2 8. Qxd2 Re8 9. Bh6 Bh8 10. Rad1 Nd7 11. Ng5 Nf6 12. Qf4 e6 13. h4 Qe7 14. h5 Bg7 15. Bxg7 Kxg7 16. hxg6 hxg6 17. Rd3 Rh8 18. Bf3 Rb8 19. Qd2 b6 20. Qb4 Bb7 21. Bxb7 Rxb7 22. Re1 Rbb8 23. d5 e5 24. f4 Nd7 25. Qa3 a5 26. Qc3 Nc5 27. Rg3 f6 28. fxe5 fxg5 29. exd6+ 1-0

[Event "BRA-ch U2000 Amateurs"]
[Site "Sao Paulo"]
[Date "2022.06.18"]
[Round "5"]
[White "Sanchez, Ivan Roberto"]
[Black "Leda, Cayro de Almeida"]
[Result "1/2-1/2"]
[ECO "D92"]
[WhiteElo "1720"]
[PlyCount "70"]
[EventDate "2022.06.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Bf4 c6 6. e3 Bg4 7. h3 Bxf3 8. Qxf3 0-0 9. Be2 dxc4 10. Bxc4 e6 11. 0-0 Nbd7 12. Rfd1 Nb6 13. Bb3 Nbd5 14. Ne2 Nxf4 15. Nxf4 Nd5 16. Nd3 b6 17. Rac1 Rc8 18. Rc2 Qd6 19. Rdc1 Rc7 20. a3 Rfc8 21. Bc4 a5 22. Bb3 Nf6 23. Ne5 Nd5 24. Nc4 Qd7 25. e4 b5 26. Nxa5 Ne7 27. d5 exd5 28. exd5 cxd5 29. Qd3 Rxc2 30. Rxc2 Rxc2 31. Qxc2 d4 32. Qd3 Qc7 33. Qxb5 Qc1+ 34. Kh2 Qf4+ 35. Kg1 Qc1+ 1/2-1/2

[Event "BRA-ch U2000 Amateurs"]
[Site "Sao Paulo"]
[Date "2022.06.17"]
[Round "4"]
[White "Cunha Filho, Gilberto"]
[Black "Sanchez, Ivan Roberto"]
[Result "1-0"]
[ECO "A20"]
[WhiteElo "1846"]
[BlackElo "1720"]
[PlyCount "83"]
[EventDate "2022.06.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 Nc6 4. Nf3 h6 5. 0-0 Be7 6. Nc3 0-0 7. d3 Re8 8. a3 a5 9. Rb1 d6 10. b4 axb4 11. axb4 Bf8 12. b5 Nb8 13. Nd2 Nbd7 14. Bb2 Nc5 15. Ra1 Rb8 16. Ra7 Bg4 17. Qc2 Bf5 18. Ba3 Bc8 19. Ra1 Ne6 20. e3 g6 21. Bb2 Bg7 22. Nb3 Qe7 23. Na5 Nd8 24. Qa4 Qe6 25. Nb3 Qf5 26. Rd1 Qh5 27. Nd2 Ne6 28. Qc2 Ng4 29. h3 Nf6 30. Nf3 Ng5 31. Nxg5 hxg5 32. Qe2 Qxe2 33. Nxe2 Nd7 34. Nc3 Nc5 35. Ba3 Ne6 36. Nd5 Kh8 37. Nxc7 Nxc7 38. Bxd6 Ra8 39. b6 Rxa7 40. bxa7 Na8 41. Rb1 Rd8 42. c5 1-0

[Event "BRA-ch U2000 Amateurs"]
[Site "Sao Paulo"]
[Date "2022.06.17"]
[Round "3"]
[White "Sanchez, Ivan Roberto"]
[Black "Usui, Gabriella Yumi"]
[Result "0-1"]
[ECO "A36"]
[WhiteElo "1720"]
[BlackElo "1530"]
[PlyCount "66"]
[EventDate "2022.06.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c4 e5 4. Nc3 Nf6 5. g3 d6 6. Bg2 Be7 7. 0-0 Be6 8. d3 h6 9. Ne1 Nd4 10. Nc2 a6 11. Ne3 b5 12. Ncd5 Nxd5 13. exd5 Bd7 14. f4 Rb8 15. fxe5 dxe5 16. Qh5 0-0 17. Be4 Bg5 18. b3 g6 19. Qd1 Bh3 20. Bg2 Qd7 21. Bxh3 Qxh3 22. Ng4 Kg7 23. Bxg5 hxg5 24. Nxe5 Rbe8 25. Qg4 Qh6 26. Rae1 f5 27. Qd1 Rh8 28. Rf2 g4 29. Qd2 Qxd2 30. Rxd2 Rxe5 31. Rxe5 Nf3+ 32. Kg2 Rxh2+ 33. Kf1 Nxd2+ 0-1

[Event "BRA-ch U2000 Amateurs"]
[Site "Sao Paulo"]
[Date "2022.06.16"]
[Round "2"]
[White "Reichert, Thiago da Cruz"]
[Black "Sanchez, Ivan Roberto"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "1997"]
[BlackElo "1720"]
[PlyCount "67"]
[EventDate "2022.06.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 0-0 6. Nf3 Re8 7. Bd3 c6 8. 0-0 Nbd7 9. Rd1 Bf8 10. Rb1 b6 11. b4 Ba6 12. Ne5 Nxe5 13. dxe5 Ng4 14. b5 cxb5 15. cxd5 Qh4 16. h3 Nxe5 17. Bxb5 Bxb5 18. Nxb5 Rec8 19. Qb3 exd5 20. Rxd5 Nc4 21. Rd4 Qh5 22. Rxc4 Bc5 23. Ba3 a6 24. Nd4 Rd8 25. Bxc5 bxc5 26. Nf3 h6 27. Rbc1 Rac8 28. Qb6 Rb8 29. Qxc5 Qxc5 30. Rxc5 Kf8 31. Rc7 Rb2 32. Ra7 Rxa2 33. Rcc7 Ra1+ 34. Kh2 1-0

[Event "BRA-ch U2000 Amateurs"]
[Site "Sao Paulo"]
[Date "2022.06.16"]
[Round "1"]
[White "Sanchez, Ivan Roberto"]
[Black "Baptista, Andre Kemper"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1720"]
[BlackElo "1927"]
[PlyCount "147"]
[EventDate "2022.06.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. g3 Nf6 4. Bg2 Bf5 5. c3 e6 6. Bg5 Bd6 7. Qc1 0-0 8. Bf4 Nh5 9. Bxd6 Qxd6 10. 0-0 Nf6 11. Nbd2 b5 12. Re1 e5 13. dxe5 Nxe5 14. Nxe5 Qxe5 15. Nf3 Qe7 16. Qg5 Bd7 17. Rad1 Rad8 18. Nd4 c5 19. Nf5 Bxf5 20. Qxf5 Qe6 21. Qd3 Qb6 22. e3 Rfe8 23. Qc2 a5 24. Re2 Re7 25. Red2 Red7 26. Qf5 Qe6 27. Qc2 a4 28. h4 h5 29. Kh2 Ng4+ 30. Kg1 Nf6 31. Kh2 Qe5 32. Qd3 Rb8 33. Bh3 Re7 34. Qf5 Qxf5 35. Bxf5 Re5 36. Bh3 Kf8 37. Bg2 Rd8 38. Bf1 Rb8 39. Bg2 Ne4 40. Rxd5 Nxf2 41. Rxe5 Nxd1 42. Rxh5 Ke7 43. Rxc5 Nxb2 44. Bf1 b4 45. cxb4 Rxb4 46. Rb5 Rxb5 47. Bxb5 a3 48. Kg2 Nd1 49. Kf3 Kd6 50. Ba4 Nc3 51. Bb3 f6 52. Kf4 Ne2+ 53. Kf3 Nc1 54. Bf7 Ke5 55. g4 Nd3 56. Ke2 Nb4 57. Kd2 Ke4 58. g5 fxg5 59. hxg5 Kf5 60. Kc3 Nc6 61. Kb3 Kxg5 62. Kxa3 Kf6 63. Bd5 Ne7 64. Bf3 Ke5 65. Kb4 Kd6 66. Kc3 Kc5 67. Kd3 Kb4 68. Bd1 g5 69. Ke4 Kc3 70. Bb3 Kd2 71. Be6 Nc6 72. Bd7 Na5 73. Kf3 Nc4 74. Kg3 1/2-1/2

[Event "Florianopolis op 8th"]
[Site "Florianopolis"]
[Date "2022.01.28"]
[Round "7"]
[White "Sanchez, Ivan Roberto"]
[Black "Silva, Marcelo dos Santos"]
[Result "0-1"]
[ECO "A85"]
[WhiteElo "1705"]
[BlackElo "1935"]
[PlyCount "70"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. Nc3 Nf6 4. e3 b6 5. Bd3 Bb7 6. f3 Bb4 7. Nge2 0-0 8. 0-0 c5 9. a3 cxd4 10. axb4 dxc3 11. Nxc3 Nc6 12. Qb3 Ne5 13. Be2 Qe7 14. Bd2 d5 15. c5 Nfd7 16. Na4 Nc4 17. Bxc4 dxc4 18. Qxc4 Bd5 19. Qd4 Rad8 20. cxb6 Nxb6 21. Nxb6 axb6 22. Qxb6 Bxf3 23. Bc3 Bd5 24. Ra7 Rd7 25. Rxd7 Qxd7 26. Qd4 Qe7 27. Qf4 Ra8 28. Be5 Rc8 29. Bd6 Qf6 30. Be5 Qg6 31. Qf2 f4 32. Bxf4 Rc2 33. Bd6 Qxg2+ 34. Qxg2 Rxg2+ 35. Kh1 Rg5+ 0-1

[Event "Florianopolis op 8th"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "6"]
[White "De Souza, Sergio R Rastoldo"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "1910"]
[BlackElo "1705"]
[PlyCount "93"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. g3 Nf6 4. d3 g6 5. Bg2 Bg7 6. 0-0 0-0 7. Re1 e5 8. Nc3 h6 9. Be3 Be6 10. h3 Qd7 11. Kh2 b5 12. a3 Nc6 13. Qd2 b4 14. Ne2 Kh7 15. axb4 cxb4 16. Ra6 Nb8 17. Ra5 Nc6 18. Ra6 Nb8 19. Raa1 Nc6 20. c3 Rfb8 21. c4 a5 22. b3 Bf8 23. Qc2 Ra6 24. d4 exd4 25. Nexd4 Ne5 26. Nxe5 dxe5 27. Nxe6 Qxe6 28. Bf1 Raa8 29. f3 Rc8 30. Red1 Nd7 31. Rd5 Qc6 32. Rdxa5 Bc5 33. Bf2 Rxa5 34. Rxa5 Qb6 35. Rxc5 Nxc5 36. h4 Qa5 37. Bxc5 Qxc5 38. Qd2 Ra8 39. Qd5 Qf2+ 40. Bg2 Ra7 41. c5 Rc7 42. Qxe5 Qxc5 43. Qd5 Qxd5 44. exd5 Rc3 45. d6 Rxb3 46. d7 Rd3 47. Bh3 0-1

[Event "Florianopolis op 8th"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "5"]
[White "Sanchez, Ivan Roberto"]
[Black "Soares, Reynaldo Magalhaes"]
[Result "0-1"]
[ECO "E70"]
[WhiteElo "1705"]
[BlackElo "1922"]
[PlyCount "74"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nf3 g6 4. Nc3 Bg7 5. e4 0-0 6. e5 Ng4 7. h3 cxd4 8. Qxd4 Nxe5 9. Nxe5 d6 10. Nxf7 Bxd4 11. Nxd8 Bxf2+ 12. Ke2 Bb6 13. Bh6 Rxd8 14. Nd5 Nc6 15. Nxb6 axb6 16. g4 Nd4+ 17. Kd3 e5 18. Bg2 b5 19. Rhf1 bxc4+ 20. Kd2 Be6 21. Kc3 Rab8 22. Rf6 b5 23. a3 Kh8 24. Raf1 Bg8 25. R1f2 d5 26. h4 Ne6 27. h5 d4+ 28. Kd2 g5 29. Be4 b4 30. a4 c3+ 31. Kc2 b3+ 32. Kc1 d3 33. Rxe6 d2+ 34. Rxd2 cxd2+ 35. Kd1 Bxe6 36. Bxg5 Bxg4+ 37. Bf3 Bxf3# 0-1

[Event "Florianopolis op 8th"]
[Site "Florianopolis"]
[Date "2022.01.25"]
[Round "2"]
[White "Espindula, Manuela de Oliveira"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "D02"]
[BlackElo "1705"]
[PlyCount "146"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. Bf4 Nf6 4. h3 Be7 5. e3 Nbd7 6. c4 c6 7. Nbd2 0-0 8. Bd3 Re8 9. 0-0 Nf8 10. Ne5 Ng6 11. Nxg6 hxg6 12. Nf3 dxc4 13. Bxc4 b5 14. Bb3 Bb7 15. Rc1 Rc8 16. Ne5 Bf8 17. a4 Qb6 18. axb5 cxb5 19. Qe2 Ba8 20. Bg5 Qb7 21. f3 Bd6 22. Bxf6 gxf6 23. Ng4 Kg7 24. e4 Qb6 25. Qe3 g5 26. e5 Be7 27. exf6+ Bxf6 28. Nxf6 Kxf6 29. Qe5+ Kg6 30. f4 f6 31. Qe3 Rxc1 32. Rxc1 e5 33. Bc2+ Kf7 34. Bb3+ Kf8 35. fxe5 Rxe5 36. Qf2 Re8 37. d5 Qxf2+ 38. Kxf2 Rd8 39. Rd1 Ke7 40. Re1+ Kf8 41. Rd1 Rd6 42. Rd2 Bb7 43. Ke3 Ke7 44. Ke4 Bc8 45. Rc2 Bd7 46. Rc7 a6 47. Ra7 Rb6 48. Rc7 Kd6 49. Rc2 Rb8 50. Ba2 Re8+ 51. Kd4 Re1 52. Rf2 f5 53. Bb3 Re4+ 54. Kd3 Re5 55. Kd4 Bc8 56. Rc2 Bb7 57. Rf2 Bxd5 58. Bxd5 Rxd5+ 59. Ke3 Ke5 60. g3 Rd1 61. Rc2 f4+ 62. gxf4+ gxf4+ 63. Kf3 Rd3+ 64. Ke2 Rxh3 65. Rc5+ Ke4 66. Rc6 Rh2+ 67. Kf1 Rxb2 68. Rxa6 Kf3 69. Ra3+ Ke4 70. Ra1 b4 71. Re1+ Kf3 72. Re5 Rb1+ 73. Re1 Rxe1+ 0-1

[Event "Florianopolis op 8th"]
[Site "Florianopolis"]
[Date "2022.01.24"]
[Round "1"]
[White "Sanchez, Ivan Roberto"]
[Black "Aranha Filho, Alvaro Zimmermann"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "1705"]
[BlackElo "2283"]
[PlyCount "73"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. Nf3 c5 6. Bd2 cxd4 7. Nxd4 Nc6 8. e3 d5 9. a3 Bd6 10. Nxc6 bxc6 11. Be2 Bb7 12. 0-0 Qe7 13. Rac1 Rac8 14. Bf3 c5 15. cxd5 exd5 16. Rfe1 Rfe8 17. Qf5 Rcd8 18. g3 Be5 19. Qc2 Rc8 20. Qd3 Red8 21. Qb5 Ba8 22. Qb3 Qd7 23. Bg2 Qf5 24. Qc2 Qe6 25. Rb1 d4 26. Ne4 Nxe4 27. Bxe4 Bxe4 28. Qxe4 c4 29. f4 Bf6 30. Qxe6 fxe6 31. Kf2 e5 32. Rec1 exf4 33. gxf4 Rd5 34. e4 Rb5 35. e5 Bh4+ 36. Kf3 g5 37. Be1 1/2-1/2

[Event "Sao Paulo Hebraica op 28th"]
[Site "Sao Paulo"]
[Date "2022.01.16"]
[Round "6"]
[White "Muniz, Henrique Rocha"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "1279"]
[BlackElo "1705"]
[PlyCount "58"]
[EventDate "2022.01.14"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. Bc4 Nd7 4. d3 Be7 5. Nc3 c6 6. d4 h6 7. dxe5 dxe5 8. a4 a5 9. 0-0 Ngf6 10. Be3 Qc7 11. Nd2 0-0 12. Qf3 Bc5 13. Nb3 Bxe3 14. fxe3 Nb6 15. Bd3 Be6 16. Qg3 Ne8 17. Nc5 Bc8 18. Rf3 Qe7 19. Raf1 Qxc5 20. Qh4 Qd6 21. Rg3 g5 22. Qh5 Ng7 23. Qe2 Be6 24. Rf6 Qb4 25. Rxh6 f6 26. Rg6 Kf7 27. Rh6 Rh8 28. Rxh8 Rxh8 29. Qf2 g4 0-1

[Event "Sao Paulo Hebraica op 28th"]
[Site "Sao Paulo"]
[Date "2022.01.16"]
[Round "5"]
[White "Sanchez, Ivan Roberto"]
[Black "De Brito, Gabrielly Rodrigues"]
[Result "1-0"]
[ECO "A55"]
[WhiteElo "1705"]
[BlackElo "1302"]
[PlyCount "147"]
[EventDate "2022.01.14"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. c4 Nbd7 4. Nc3 e5 5. e4 Be7 6. Be2 exd4 7. Nxd4 0-0 8. 0-0 Nc5 9. f3 Ne6 10. Nf5 Nc5 11. Nxe7+ Qxe7 12. Be3 Be6 13. Qc2 a5 14. Rac1 Rfe8 15. Kh1 Bd7 16. Bf2 Bc6 17. Rfe1 Nh5 18. Bf1 Qg5 19. Nd5 Bxd5 20. cxd5 b6 21. a3 a4 22. g3 Qf6 23. Re3 Nb3 24. Rd1 Nc5 25. Rc3 Qg6 26. Bxc5 dxc5 27. Bb5 Re5 28. Bxa4 Nxg3+ 29. hxg3 Qxg3 30. Qg2 Qxg2+ 31. Kxg2 Rxa4 32. d6 cxd6 33. Rxd6 g6 34. Rxb6 Ra5 35. Kf2 f5 36. Ke3 fxe4 37. Kf4 Rf5+ 38. Kxe4 Ra4+ 39. Ke3 Ra5 40. Rcb3 Ra4 41. Rc6 Raf4 42. Ke2 Ra4 43. Rc7 Ra5 44. Rb8+ Rf8 45. Rbb7 Re8+ 46. Kd2 Ra6 47. Rg7+ Kh8 48. Rxh7+ Kg8 49. Rhg7+ Kh8 50. Rge7 Rd6+ 51. Kc2 Red8 52. Re3 Rf6 53. Rbe7 Kg8 54. Re8+ Rxe8 55. Rxe8+ Kf7 56. Re3 Rc6 57. Kc3 Kf6 58. Kc4 Rc8 59. Kd5 g5 60. Rc3 Rb8 61. b3 Ra8 62. a4 Re8 63. Kxc5 Re5+ 64. Kb6 Re1 65. a5 Kf5 66. a6 Re6+ 67. Kb7 Re7+ 68. Kb6 Re6+ 69. Kb5 Re7 70. b4 Kf4 71. Ra3 Re5+ 72. Kb6 Re6+ 73. Ka5 Re7 74. b5 1-0

[Event "Sao Paulo Hebraica op 28th"]
[Site "Sao Paulo"]
[Date "2022.01.15"]
[Round "4"]
[White "Correa, Joao Pedro Vieira"]
[Black "Sanchez, Ivan Roberto"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "1864"]
[BlackElo "1705"]
[PlyCount "81"]
[EventDate "2022.01.14"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d3 b6 4. g3 Bb7 5. Bg2 Qc7 6. Qe2 g6 7. 0-0 Bg7 8. c3 Nc6 9. Rd1 Nge7 10. Na3 a6 11. d4 0-0 12. d5 exd5 13. exd5 Ne5 14. Nxe5 Qxe5 15. Qxe5 Bxe5 16. Nc4 Bg7 17. Nxb6 Rad8 18. Bg5 f6 19. d6 Nc8 20. Nxc8 Rxc8 21. Bxb7 Rb8 22. Bd5+ Kh8 23. Be3 Rfc8 24. b3 h6 25. Bc4 a5 26. a4 f5 27. Rac1 Rb6 28. Rd5 Bf8 29. Bxc5 Rbc6 30. Bd4+ Kh7 31. Be5 Rc5 32. Rcd1 g5 33. Rxc5 Rxc5 34. Rd5 Rc6 35. Rxa5 Bg7 36. Bxg7 Kxg7 37. Ra6 Rxa6 38. Bxa6 Kf6 39. Bb7 Ke5 40. a5 Kxd6 41. Kf1 1-0

[Event "Sao Paulo Hebraica op 28th"]
[Site "Sao Paulo"]
[Date "2022.01.15"]
[Round "3"]
[White "Sanchez, Ivan Roberto"]
[Black "Soares, Lucas Vicente"]
[Result "0-1"]
[ECO "D03"]
[WhiteElo "1705"]
[BlackElo "1869"]
[PlyCount "54"]
[EventDate "2022.01.14"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. Bg5 Nf6 4. e3 c5 5. Be2 Bd6 6. 0-0 0-0 7. Nc3 Nc6 8. Nb5 Be7 9. dxc5 Bxc5 10. Bf4 a6 11. Nbd4 Bd6 12. Nxc6 bxc6 13. Bxd6 Qxd6 14. c4 e5 15. Qc2 a5 16. h3 h6 17. Rfd1 Ba6 18. Nh4 Rfb8 19. c5 Qe6 20. Bxa6 Rxa6 21. Nf5 Ne4 22. Qe2 Qxf5 23. Qxa6 Qxf2+ 24. Kh1 Rxb2 25. Qc8+ Kh7 26. Qg4 Ng3+ 27. Kh2 Qxg2# 0-1

[Event "Sao Paulo Hebraica op 28th"]
[Site "Sao Paulo"]
[Date "2022.01.14"]
[Round "2"]
[White "Carvalho, Pedro Henrique"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "E73"]
[BlackElo "1705"]
[PlyCount "80"]
[EventDate "2022.01.14"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 Nc6 6. Bg5 e5 7. Nf3 h6 8. Be3 0-0 9. d5 Ne7 10. Qd2 Ng4 11. 0-0-0 f5 12. Ne1 f4 13. Bxg4 Bxg4 14. f3 fxe3 15. Qxe3 Bd7 16. h4 Qe8 17. g4 Qf7 18. h5 Qf4 19. Kd2 Qxe3+ 20. Kxe3 Bf6 21. hxg6 Bg5+ 22. Kd3 Nxg6 23. Ne2 Nf4+ 24. Nxf4 Bxf4 25. Ng2 Bg5 26. Ke2 Kg7 27. Nh4 Bxh4 28. Rxh4 Rf4 29. Rdh1 Rh8 30. Kf2 Be8 31. Kg3 Rhf8 32. Rf1 Rxe4 33. Rc1 Re3 34. c5 Rexf3+ 35. Kg2 Rf2+ 36. Kg1 Bb5 37. Rh2 Rf1+ 38. Rxf1 Rxf1+ 39. Kg2 Rd1 40. Rh3 Bf1+ 0-1

[Event "Sao Paulo Hebraica op 28th"]
[Site "Sao Paulo"]
[Date "2022.01.14"]
[Round "1"]
[White "Sanchez, Ivan Roberto"]
[Black "Rocha, Eduardo Quaresma"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "1705"]
[PlyCount "113"]
[EventDate "2022.01.14"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. d4 c6 2. e4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Ng5 Bg4 6. N5f3 e6 7. Bc4 Bd6 8. Bg5 Nbd7 9. Bh4 h6 10. Bd3 g5 11. Bg3 e5 12. Be2 Qa5+ 13. Qd2 Qd5 14. dxe5 Bxf3 15. Bxf3 Qxd2+ 16. Kxd2 Nxe5 17. Re1 Nfd7 18. Bg4 f6 19. Nf3 0-0-0 20. Nxe5 fxe5 21. Bxe5 Bb4+ 22. c3 Ba5 23. Bxh8 Rxh8 24. Re7 Rd8 25. Ke2 h5 26. Be6 Bc7 27. Rd1 b6 28. Rdxd7 Rxd7 29. Rxd7 Kb7 30. Bf7 h4 31. Kf3 b5 32. Kg4 Kc8 33. Rxc7+ Kxc7 34. Kxg5 Kd6 35. Kxh4 Ke7 36. Bg6 Kf6 37. Bd3 Kg7 38. Kg5 a6 39. b4 Kg8 40. Kf6 Kf8 41. Ke6 Ke8 42. Kd6 Kd8 43. Kxc6 Ke7 44. Kb6 Kf6 45. Kxa6 Kg5 46. Kxb5 Kf4 47. a4 Ke5 48. a5 Kd6 49. a6 Kc7 50. Be4 Kb8 51. Kb6 Kc8 52. a7 Kd7 53. a8Q Ke6 54. Qd5+ Ke7 55. Qc6 Kf7 56. Qd6 Kg7 57. Qg6+ 1-0

[Event "BRA-ch Amateur U1800"]
[Site "Sao Paulo"]
[Date "2019.06.22"]
[Round "6"]
[White "Sanchez, Ivan Roberto"]
[Black "Rodio, Julia Brunetto"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "1691"]
[BlackElo "1756"]
[PlyCount "107"]
[EventDate "2019.06.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nf6 3. Nc3 g6 4. g3 Bg7 5. e3 Nc6 6. Bg2 d6 7. h3 Bf5 8. d3 h6 9. a3 Rb8 10. 0-0 Qd7 11. Kh2 g5 12. Ne1 Bg6 13. Qc2 h5 14. Nd5 Na5 15. Nxf6+ Bxf6 16. Qd1 Nc6 17. Rb1 Ne5 18. Kg1 Nxc4 19. f4 gxf4 20. gxf4 Nb6 21. Qf3 h4 22. b3 Bh5 23. Qf2 Rg8 24. Bb2 Bxb2 25. Rxb2 Qxh3 26. Nf3 Bxf3 27. Qxf3 Qxf3 28. Rxf3 Kd7 29. Rh3 Rg4 30. Kf2 Rh8 31. Be4 e6 32. Kf3 Rhg8 33. Bxb7 d5 34. Rbh2 Rg3+ 35. Kf2 Rxh3 36. Rxh3 Rh8 37. Ba6 Kc7 38. Kf3 Nd7 39. d4 cxd4 40. exd4 Kb6 41. Be2 f5 42. Bf1 Nf6 43. Rh2 Ne4 44. a4 Ka5 45. Bb5 Kb4 46. Rb2 Kc3 47. Rb1 h3 48. Rh1 Kxb3 49. Rc1 Kb2 50. Rh1 Kc3 51. Rh2 a6 52. Bf1 Kb3 53. Rxh3 Rxh3+ 54. Bxh3 0-1

[Event "BRA-ch Amateur U1800"]
[Site "Sao Paulo"]
[Date "2019.06.21"]
[Round "4"]
[White "Borges, Leonardo Hisao Hera"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "A39"]
[WhiteElo "1748"]
[BlackElo "1691"]
[PlyCount "82"]
[EventDate "2019.06.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 Nc6 3. c4 g6 4. Bg2 Bg7 5. 0-0 Nf6 6. Nc3 0-0 7. d4 cxd4 8. Nxd4 a6 9. Nc2 Rb8 10. a4 d6 11. e4 Qc7 12. Ne3 e6 13. Qc2 Nb4 14. Qe2 Nd7 15. Bd2 Nc6 16. Rab1 Nd4 17. Qd1 Ne5 18. b3 Bd7 19. Ne2 Ndf3+ 20. Kh1 Nxd2 21. Qxd2 Rfd8 22. Rfd1 Be8 23. Nc3 Nc6 24. Rdc1 Qe7 25. f4 Nd4 26. Nc2 Nxc2 27. Qxc2 Bc6 28. Ne2 b6 29. Rd1 Qb7 30. Rd2 Rd7 31. Nd4 Bxd4 32. Rxd4 d5 33. cxd5 exd5 34. e5 a5 35. Qd3 b5 36. axb5 Qxb5 37. Qxb5 Rxb5 38. b4 Rdb7 39. Rbd1 axb4 40. Bxd5 Rxd5 41. Rxd5 Rb5 0-1

[Event "BRA-ch Amateur U1800"]
[Site "Sao Paulo"]
[Date "2019.06.21"]
[Round "3"]
[White "Sanchez, Ivan Roberto"]
[Black "Haraguchi, Matheus Sashaki"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "1691"]
[BlackElo "1524"]
[PlyCount "95"]
[EventDate "2019.06.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. c4 e6 2. g3 d5 3. cxd5 exd5 4. d4 Nf6 5. Bg2 c6 6. Nf3 Be7 7. 0-0 0-0 8. b3 Nbd7 9. Ba3 Re8 10. Bxe7 Rxe7 11. Qc2 Ne4 12. e3 Ndf6 13. Nbd2 g6 14. Ne5 Bf5 15. Qb2 Nd6 16. Rac1 Nd7 17. Rfd1 f6 18. Rxc6 Nxe5 19. Rxd6 Qxd6 20. dxe5 Qxe5 21. Qxe5 fxe5 22. Bxd5+ Kg7 23. f3 Rd8 24. e4 Be6 25. Nc4 Bxd5 26. exd5 Red7 27. Ne3 Rd6 28. Kf2 b5 29. Ke2 h5 30. h4 Rc8 31. Kd3 Kf6 32. Ke4 a5 33. g4 Rd7 34. g5+ Kf7 35. Kxe5 Re8+ 36. Kd4 Rde7 37. Rd3 Rc7 38. d6 Rd7 39. Kd5 a4 40. bxa4 bxa4 41. Nc4 Re2 42. Ne5+ Ke8 43. Nxd7 Kxd7 44. Ra3 Rd2+ 45. Ke5 Re2+ 46. Kf4 Kxd6 47. Rxa4 Ke7 48. Re4+ 1-0

[Event "BRA-ch Amateur U1800"]
[Site "Sao Paulo"]
[Date "2019.06.20"]
[Round "2"]
[White "Abilhoa, Gustavo Auer"]
[Black "Sanchez, Ivan Roberto"]
[Result "1-0"]
[ECO "E73"]
[WhiteElo "1767"]
[BlackElo "1691"]
[PlyCount "99"]
[EventDate "2019.06.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. h4 e5 7. d5 h6 8. Be3 Kh7 9. g4 Ng8 10. g5 f5 11. gxh6 Bf6 12. Bg5 Bxg5 13. hxg5 Qxg5 14. Nf3 Qf6 15. exf5 Bxf5 16. Qd2 Nd7 17. Ng5+ Kh8 18. Nce4 Bxe4 19. Nxe4 Qf4 20. Qe3 Qxe3 21. fxe3 Ngf6 22. Ng5 Nh7 23. Ne6 Rfc8 24. Bd3 Ndf8 25. Nxf8 Nxf8 26. Ke2 Re8 27. Be4 Re7 28. Raf1 g5 29. Rfg1 Nh7 30. Bxh7 Kxh7 31. Rxg5 Rg8 32. Rxg8 Kxg8 33. Rf1 Kh7 34. Rf6 Rd7 35. b4 c6 36. Kf3 cxd5 37. cxd5 b5 38. Ke4 a6 39. Kf5 Rd8 40. Ke6 e4 41. Rf7+ Kxh6 42. Rd7 Ra8 43. Rxd6 a5 44. Rb6 axb4 45. Ke5+ Kg7 46. Rxb5 Rxa2 47. Rxb4 Ra8 48. Rb7+ Kf8 49. Kxe4 Ra1 50. Ke5 1-0

[Event "Pocos de Caldas op"]
[Site "Pocos de Caldas"]
[Date "2019.02.09"]
[Round "3"]
[White "Malek, Omar Rasselen Abdul"]
[Black "Sanchez, Ivan Roberto"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "1800"]
[BlackElo "1689"]
[PlyCount "66"]
[EventDate "2019.02.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 Nf6 2. e3 g6 3. b3 Bg7 4. Bb2 0-0 5. Bd3 d6 6. Nd2 Nbd7 7. c4 e5 8. Ne2 Re8 9. Qc2 Nf8 10. 0-0 Nh5 11. f4 exd4 12. exd4 Bg4 13. Rae1 Ne6 14. f5 Nef4 15. Nxf4 Rxe1 16. Rxe1 Nxf4 17. fxg6 hxg6 18. Bf1 Bf5 19. Qd1 d5 20. Nf3 c6 21. Qd2 Bh6 22. Qb4 Qb6 23. Qe7 Ne6 24. Qh4 Bg7 25. Kh1 Rd8 26. c5 Qc7 27. Bc1 Qa5 28. Bd2 Qc7 29. b4 f6 30. Bd3 Bxd3 31. Rxe6 Kf7 32. Bf4 Qd7 33. Rd6 Qe7 1/2-1/2

[Event "Florianopolis op 5th"]
[Site "Florianopolis"]
[Date "2019.01.27"]
[Round "10"]
[White "Sarda, Pedro Sada"]
[Black "Sanchez, Ivan Roberto"]
[Result "1-0"]
[ECO "D03"]
[WhiteElo "1539"]
[BlackElo "1703"]
[PlyCount "132"]
[EventDate "2019.01.21"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Bg5 e6 4. Nbd2 Be7 5. e3 0-0 6. Bd3 Nbd7 7. c3 Re8 8. Ne5 Nf8 9. f4 c5 10. Ndf3 c4 11. Bc2 Ne4 12. Bxe7 Qxe7 13. 0-0 b5 14. Nd2 Bb7 15. Nxe4 dxe4 16. f5 f6 17. Ng4 Rad8 18. fxe6 Qxe6 19. Nf2 Rd6 20. Qg4 f5 21. Qg5 Bc8 22. Nh3 Qh6 23. Qxh6 Rxh6 24. a4 a6 25. axb5 axb5 26. Ra5 Rb6 27. Nf4 Bb7 28. Ne2 g6 29. Rb1 b4 30. Ba4 Rd8 31. Rb5 Rdd6 32. cxb4 Ne6 33. Nc3 Nc7 34. Rxb6 Rxb6 35. b5 Bc8 36. b3 cxb3 37. Bxb3+ Kf8 38. Nd5 Nxd5 39. Bxd5 Bb7 40. Bc4 Ke7 41. Kf2 Bc8 42. Ra1 h6 43. Ra8 Bb7 44. Rb8 Kd7 45. Kg3 Kc7 46. Rh8 g5 47. Rf8 Bc8 48. Rf7+ Bd7 49. Bd5 Rxb5 50. Be6 f4+ 51. exf4 gxf4+ 52. Kxf4 Rb2 53. Rxd7+ Kc6 54. d5+ Kc5 55. Kxe4 Rxg2 56. h3 Rg5 57. Rh7 Rh5 58. Kf4 Kd6 59. Kg4 Rg5+ 60. Kh4 Rg6 61. Kh5 Rg2 62. Rxh6 Ke7 63. Rg6 Rd2 64. Rg4 Rb2 65. Kg6 Rb8 66. h4 Rf8 1-0

[Event "Florianopolis op 5th"]
[Site "Florianopolis"]
[Date "2019.01.24"]
[Round "6"]
[White "Dutra, Liliam Guedes"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1443"]
[BlackElo "1703"]
[PlyCount "92"]
[EventDate "2019.01.21"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Bb5 Qb6 6. Na3 Bd7 7. Ne2 Nxe5 8. dxe5 Bxb5 9. Nxb5 Qxb5 10. f4 Ne7 11. Qc2 Nc6 12. Be3 Be7 13. g4 Bh4+ 14. Ng3 f6 15. exf6 Bxf6 16. Qe2 Qxe2+ 17. Kxe2 d4 18. Bd2 dxc3 19. bxc3 0-0-0 20. g5 Be7 21. Ne4 Rhf8 22. Be3 b6 23. Rhf1 g6 24. Rad1 Na5 25. Nd2 Nb7 26. Nc4 Nd6 27. Ne5 Kc7 28. Kf3 Bxg5 29. Kg4 Bf6 30. Bc1 Bxe5 31. fxe5 Nf5 32. Bg5 Rxd1 33. Rxd1 Rf7 34. h4 Kc6 35. Rd2 Kb5 36. h5 gxh5+ 37. Kxh5 Ng3+ 38. Kh6 Ne4 39. Rb2+ Kc6 40. Bh4 Nxc3 41. Bf6 Ne4 42. Bg7 Rf2 43. Rxf2 Nxf2 44. Kxh7 c4 45. Kg6 c3 46. Kf7 Kd5 0-1

[Event "Florianopolis op 5th"]
[Site "Florianopolis"]
[Date "2019.01.24"]
[Round "5"]
[White "Sanchez, Ivan Roberto"]
[Black "Peixoto, Rudson Marinho"]
[Result "0-1"]
[ECO "E92"]
[WhiteElo "1703"]
[BlackElo "1931"]
[PlyCount "88"]
[EventDate "2019.01.21"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nf3 g6 2. c4 Bg7 3. Nc3 Nf6 4. d4 d6 5. h3 Nbd7 6. e4 e5 7. Bg5 c6 8. Be2 Qc7 9. 0-0 0-0 10. dxe5 dxe5 11. Qc2 Nc5 12. Rad1 h6 13. Be3 Ne6 14. Rd2 Nf4 15. Rfd1 b6 16. Bf1 N6h5 17. Ne2 Be6 18. Nxf4 Nxf4 19. Rd6 c5 20. Qd2 g5 21. h4 g4 22. Nh2 Rfe8 23. g3 Ng6 24. Bxh6 Bf6 25. Bg5 Bg7 26. Bh6 Bf6 27. Bg5 Bg7 28. Rd8 Raxd8 29. Bxd8 Qc6 30. Qg5 Qxe4 31. Bd3 Qd4 32. Bc2 Qxb2 33. Bxg6 fxg6 34. Qxg6 Bf7 35. Qxg4 e4 36. Nf1 Bxc4 37. Ne3 Bd3 38. Qd7 Rf8 39. Qd5+ Rf7 40. Ng4 Qe2 41. Rxd3 exd3 42. Qg5 d2 43. Nh6+ Kf8 44. Nxf7 d1Q+ 0-1

[Event "Florianopolis op 5th"]
[Site "Florianopolis"]
[Date "2019.01.23"]
[Round "4"]
[White "Carvalho, Isis"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "1396"]
[BlackElo "1703"]
[PlyCount "112"]
[EventDate "2019.01.21"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Bf5 3. Bg2 e6 4. 0-0 h6 5. d3 Nf6 6. Nbd2 Be7 7. Re1 0-0 8. c3 c5 9. a4 Nc6 10. Nh4 Bh7 11. e4 dxe4 12. dxe4 Ne5 13. Qe2 Nd3 14. Rd1 Nxc1 15. Raxc1 Qc7 16. Nc4 Rad8 17. e5 Nd5 18. Qg4 Nb6 19. a5 Nxc4 20. Qxc4 Qxa5 21. Bxb7 Qc7 22. Bg2 Qxe5 23. Nf3 Qb8 24. Ne5 Qxe5 25. Re1 Qd6 26. Ra1 Qb6 27. b3 Bd3 28. Qa4 Bc2 29. Qxa7 Qxa7 30. Rxa7 Bf6 31. Bf3 Bxb3 32. Rc7 Bd5 33. Bxd5 Rxd5 34. c4 Rd2 35. Rf1 Bd4 36. Rc6 Ra8 37. Rb6 Raa2 38. Rb8+ Kh7 39. Rf8 Kg6 40. h4 h5 41. Rh8 Rxf2 42. Rxf2 Rxf2 43. Kh1 Be3 44. Rd8 Rc2 45. Rd3 Bd4 46. Rd1 Rxc4 47. Kg2 Rc3 48. Rd2 e5 49. Ra2 Rc1 50. Ra6+ f6 51. Rc6 c4 52. Kf3 c3 53. Ke2 Rc2+ 54. Kd1 Rg2 55. g4 Rd2+ 56. Kc1 hxg4 0-1

[Event "Florianopolis op 5th"]
[Site "Florianopolis"]
[Date "2019.01.22"]
[Round "2"]
[White "Buiar, Maria Eduarda Beral"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1315"]
[BlackElo "1703"]
[PlyCount "72"]
[EventDate "2019.01.21"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. h3 e6 4. e3 Bd6 5. Bxd6 Qxd6 6. Nf3 Nbd7 7. Nbd2 e5 8. dxe5 Nxe5 9. c3 0-0 10. Nxe5 Qxe5 11. Nf3 Qe7 12. Bd3 Rd8 13. 0-0 h6 14. Qc2 Bd7 15. Rfe1 Ne4 16. Nd2 Nc5 17. e4 Nxd3 18. Qxd3 dxe4 19. Nxe4 Qh4 20. Qf3 Bc6 21. Qg4 Qxg4 22. hxg4 Re8 23. Ng3 Rxe1+ 24. Rxe1 Rd8 25. Nf5 Kf8 26. Nd4 Bd7 27. f3 c5 28. Nb3 b6 29. Rd1 Ke7 30. Kf2 Rf8 31. Nc1 f5 32. Nd3 fxg4 33. Ne5 Bf5 34. Nc6+ Kf6 35. fxg4 Bxg4 36. Kg3 Bxd1 0-1

[Event "Florianopolis op 5th"]
[Site "Florianopolis"]
[Date "2019.01.22"]
[Round "3"]
[White "Sanchez, Ivan Roberto"]
[Black "Ichimura G Barbosa, Larissa Yuki"]
[Result "0-1"]
[ECO "E67"]
[WhiteElo "1703"]
[BlackElo "1967"]
[PlyCount "76"]
[EventDate "2019.01.21"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. d4 d6 6. 0-0 Nbd7 7. Nc3 e5 8. dxe5 dxe5 9. Qc2 c6 10. Rd1 Qc7 11. b3 Re8 12. e4 Bf8 13. Na4 Nc5 14. Nxc5 Bxc5 15. h3 Nh5 16. Kh2 f5 17. Ne1 f4 18. g4 Ng7 19. Nd3 Bd4 20. Rb1 Ne6 21. Ne1 Qe7 22. Nf3 a5 23. Bb2 Bxb2 24. Rxb2 Ng5 25. Nxg5 Qxg5 26. Rd6 Be6 27. Qd1 Rad8 28. Rbd2 Rxd6 29. Rxd6 h5 30. f3 Qh4 31. Kg1 Kf7 32. Kf1 hxg4 33. hxg4 Rh8 34. Qe1 Qe7 35. c5 a4 36. Qc3 axb3 37. axb3 Ra8 38. Qxe5 Bc4+ 0-1

[Event "Florianopolis op 5th"]
[Site "Florianopolis"]
[Date "2019.01.21"]
[Round "1"]
[White "Sanchez, Ivan Roberto"]
[Black "Villalba, Marcelo"]
[Result "0-1"]
[ECO "E70"]
[WhiteElo "1703"]
[BlackElo "2276"]
[PlyCount "96"]
[EventDate "2019.01.21"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. e5 Ne8 6. Nf3 d6 7. Be2 dxe5 8. dxe5 Qxd1+ 9. Bxd1 Nc6 10. 0-0 Nxe5 11. Nxe5 Bxe5 12. Re1 Bxc3 13. bxc3 Be6 14. Ba3 Nd6 15. c5 Nc4 16. Bc1 Rfd8 17. Bb3 Rd3 18. Bf4 Rxc3 19. Bxc7 Rc8 20. Bf4 Rxc5 21. Rad1 g5 22. Rd8+ Kg7 23. Bg3 Rc8 24. Rxc8 Bxc8 25. f4 gxf4 26. Bxf4 Be6 27. Bb8 a6 28. Ba7 Kf8 29. Rd1 Nd6 30. Bxe6 fxe6 31. Bd4 Rc2 32. Rf1+ Ke8 33. a4 Rc4 34. Ba1 Rxa4 35. Rb1 b5 36. Bc3 Rc4 37. Ba5 Ra4 38. Bb4 Nc4 39. Be1 Ra2 40. h3 h5 41. Kh2 Ne3 42. Kg3 Nxg2 43. Bf2 Nf4 44. Be3 Nd5 45. Bc5 Rc2 46. Bd4 Rc4 47. Ba1 b4 48. Re1 Kd7 0-1

[Event "BRA-ch Amateur U1800"]
[Site "Sao Paulo"]
[Date "2018.06.03"]
[Round "7"]
[White "Sanchez, Ivan Roberto"]
[Black "De Oliveira, Joao Eudes"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1665"]
[BlackElo "1756"]
[PlyCount "122"]
[EventDate "2018.05.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 Bg4 4. 0-0 e6 5. d4 c5 6. c3 Nc6 7. Nbd2 Be7 8. Re1 0-0 9. Qc2 Rc8 10. e3 b6 11. Qa4 Rc7 12. Ne5 Nxe5 13. dxe5 Nd7 14. Qxg4 Nxe5 15. Qe2 c4 16. Nf3 Nd3 17. Rd1 Rd7 18. Ne1 Ne5 19. Kh1 Qc7 20. e4 dxe4 21. Rxd7 Nxd7 22. Qxe4 Rd8 23. Be3 Nf6 24. Qc6 Qxc6 25. Bxc6 Ng4 26. Bb5 Nxe3 27. fxe3 Rd2 28. Rb1 Bc5 29. Ng2 Kf8 30. Bxc4 e5 31. Nh4 f6 32. Ng2 Ke7 33. Bg8 h6 34. Kg1 Kf8 35. Bc4 Ke7 36. Kf1 g5 37. Be2 f5 38. Ke1 Rd8 39. Rd1 Bd6 40. e4 f4 41. g4 a5 42. h3 Rc8 43. Bb5 Rc5 44. a4 Rc7 45. Ke2 Ke6 46. Ne1 Rh7 47. Nf3 Rc7 48. Rd5 Rc5 49. Rxc5 Bxc5 50. Kd3 Kf6 51. Be8 Ke7 52. Bh5 Ke6 53. Kc4 Be7 54. Kb5 Bd8 55. b4 Kd6 56. bxa5 bxa5 57. c4 Bc7 58. Bg6 Ke6 59. Kc6 Bd8 60. Bf5+ Kf6 61. Kd7 Be7 1-0

[Event "BRA-ch Amateur U1800"]
[Site "Sao Paulo"]
[Date "2018.06.02"]
[Round "5"]
[White "Sanchez, Ivan Roberto"]
[Black "De Sa, Sidney Loyola"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "1665"]
[BlackElo "1751"]
[PlyCount "87"]
[EventDate "2018.05.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. 0-0 e6 5. d3 d5 6. Nbd2 Be7 7. e4 dxe4 8. dxe4 Nxe4 9. Ne5 Qd4 10. Nxe4 Qxd1 11. Rxd1 c6 12. Nd6+ Bxd6 13. Rxd6 Ke7 14. Rd1 f6 15. Nf3 c5 16. b3 Na6 17. Ne1 Bxg2 18. Kxg2 Rac8 19. c4 Nc7 20. Be3 h5 21. Rd2 Na6 22. Rad1 Nb8 23. h4 Rcg8 24. Nf3 e5 25. Rd5 Rc8 26. Bc1 Rc7 27. Nd2 Nc6 28. Ne4 Nd4 29. f4 Nc6 30. fxe5 Nb4 31. exf6+ gxf6 32. Nc3 Kf7 33. Rd7+ Rxd7 34. Rxd7+ Ke6 35. Rxa7 Rd8 36. Nd5 Nxd5 37. cxd5+ Rxd5 38. Ra6 Rd6 39. Bf4 Rc6 40. a4 Kd5 41. a5 Re6 42. Rxb6 Re2+ 43. Kf3 Rb2 44. Rd6# 1-0

[Event "BRA-ch Amateur U1800"]
[Site "Sao Paulo"]
[Date "2018.06.01"]
[Round "4"]
[White "Negri, Daniel Julio S"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "D86"]
[WhiteElo "1796"]
[BlackElo "1665"]
[PlyCount "78"]
[EventDate "2018.05.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 cxd4 9. cxd4 0-0 10. 0-0 Qc7 11. Qc2 e6 12. Be3 b5 13. Bd3 Qxc2 14. Bxc2 Bb7 15. Rab1 a6 16. Bd3 Rd8 17. f4 Nc6 18. e5 b4 19. a3 a5 20. Rfc1 Bf8 21. Bb5 Na7 22. Ba4 Be4 23. Bc2 Bxc2 24. Rxc2 Nb5 25. Bc1 Nxd4 26. Nxd4 Rxd4 27. Kf2 Rad8 28. Be3 Rd1 29. Rbb2 bxa3 30. Ra2 Rb1 31. Ke2 Rdd1 32. Bc5 Bxc5 33. Rxc5 Rb2+ 34. Rc2 Rxc2+ 35. Rxc2 Rb1 36. Kd2 Rb3 37. Rc3 a4 38. Rc8+ Kg7 39. Ra8 Rb4 0-1

[Event "BRA-ch Amateur U1800"]
[Site "Sao Paulo"]
[Date "2018.06.01"]
[Round "3"]
[White "Sanchez, Ivan Roberto"]
[Black "De Souza, Fernando Luiz Jr"]
[Result "1/2-1/2"]
[ECO "A14"]
[WhiteElo "1665"]
[PlyCount "95"]
[EventDate "2018.05.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. b3 Nf6 4. Bb2 Be7 5. g3 0-0 6. Bg2 c6 7. 0-0 Nbd7 8. d3 b6 9. Nbd2 Qc7 10. Qc2 Qb8 11. cxd5 cxd5 12. Rac1 Ba6 13. Qb1 Qd6 14. Rc2 Rac8 15. Rfc1 h6 16. Qa1 Rxc2 17. Rxc2 Rc8 18. Rxc8+ Bxc8 19. Ne5 Qc5 20. Ndf3 Kf8 21. Qc1 Bb7 22. Qxc5 bxc5 23. d4 cxd4 24. Bxd4 Bc5 25. Bxc5+ Nxc5 26. Nd4 Nce4 27. Bxe4 Nxe4 28. Nec6 a6 29. Na5 Bc8 30. e3 Ke8 31. b4 Nc3 32. a3 Kd7 33. Kf1 Kc7 34. Ke1 Kb6 35. Nc2 Kb5 36. Kd2 Ne4+ 37. Ke1 Ka4 38. Nc6 Kb3 39. N6d4+ Kb2 40. f3 Nc3 41. Kd2 Nb1+ 42. Kd3 Nxa3 43. Nxa3 Kxa3 44. Kc3 Bd7 45. f4 Ka4 46. Nf3 Kb5 47. Nd4+ Kb6 48. Nb3 1/2-1/2

[Event "BRA-ch Amateur U1800"]
[Site "Sao Paulo"]
[Date "2018.05.31"]
[Round "6"]
[White "Alves, Alessandro Cunha"]
[Black "Sanchez, Ivan Roberto"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "1786"]
[BlackElo "1665"]
[PlyCount "61"]
[EventDate "2018.05.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. d4 d5 4. g3 Be7 5. Bg2 c6 6. Nbd2 0-0 7. 0-0 dxc4 8. Nxc4 Nbd7 9. a3 b5 10. Nce5 Nxe5 11. Nxe5 Bd7 12. Nxc6 Bxc6 13. Bxc6 Rb8 14. Bg2 h6 15. b4 a5 16. Bd2 axb4 17. Bxb4 Bxb4 18. axb4 Qd6 19. Qd2 Rfd8 20. e3 Nd7 21. Rfc1 Nb6 22. Ra6 Qe7 23. Bf1 Rd6 24. Bxb5 e5 25. Rc6 Rxc6 26. Bxc6 Nc4 27. Qc3 Rxb4 28. Be4 g6 29. dxe5 Nxe5 30. Ra8+ Kh7 31. Qc8 1-0

[Event "BRA-ch Amateur U1800"]
[Site "Sao Paulo"]
[Date "2018.05.31"]
[Round "2"]
[White "Nobre, Jailson Altair Barb"]
[Black "Sanchez, Ivan Roberto"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1766"]
[BlackElo "1665"]
[PlyCount "121"]
[EventDate "2018.05.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 c5 5. g3 Nc6 6. Bg2 Be7 7. 0-0 0-0 8. Re1 b5 9. e5 Nd7 10. Nf1 Nb6 11. h4 a5 12. N1h2 b4 13. c3 Ba6 14. Ng5 h6 15. Nh3 Nd7 16. d4 bxc3 17. bxc3 cxd4 18. cxd4 Qb6 19. Be3 f5 20. Qh5 Rf7 21. Qg6 Nf8 22. Qh5 Bd8 23. Nf4 Ne7 24. Rab1 Qa7 25. Rb2 Bc4 26. Reb1 Nc6 27. Nf3 Rb8 28. Rxb8 Nxb8 29. a4 Rb7 30. Rxb7 Qxb7 31. Qe8 Qd7 32. Qxd7 Nbxd7 33. Nd2 Ba6 34. Bf1 Bxf1 35. Kxf1 Nb6 36. Nb3 Nxa4 37. Bd2 Nb2 38. Bxa5 Be7 39. h5 Nc4 40. Bc3 Kf7 41. Ke2 Nd7 42. Na5 Nxa5 43. Bxa5 Nb8 44. Bb6 Nd7 45. Bc7 Bg5 46. Nd3 g6 47. hxg6+ Kxg6 48. Nc5 Kf7 49. Nxd7 Be7 50. Nc5 Bg5 51. f4 Be7 52. Nb7 Bb4 53. Nd8+ Ke8 54. Nxe6 Kd7 55. Nc5+ Bxc5 56. dxc5 Kxc7 57. Kd3 Kd7 58. Kd4 Kc6 59. e6 h5 60. Ke5 Kxc5 61. e7 1-0

[Event "BRA-ch Amateur U1800"]
[Site "Sao Paulo"]
[Date "2018.05.31"]
[Round "1"]
[White "Sanchez, Ivan Roberto"]
[Black "Pereira Mota, Nataniel Julio"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "1665"]
[BlackElo "1765"]
[PlyCount "17"]
[EventDate "2018.05.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 c5 3. g3 Nc6 4. Bg2 e5 5. d3 f5 6. Bb2 Bd6 7. 0-0 Nf6 8. Nbd2 0-0 9. c3 1-0

[Event "Sao Paulo op-C U1700 7th"]
[Site "Sao Paulo"]
[Date "2018.04.01"]
[Round "6"]
[White "De Oliveira, Francemir Barra"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1593"]
[BlackElo "1639"]
[PlyCount "89"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. b3 Nc6 5. Nf3 Qb6 6. Bd3 Bd7 7. dxc5 Bxc5 8. 0-0 Qc7 9. b4 Bb6 10. Bf4 Nge7 11. Re1 Ng6 12. Bg3 d4 13. b5 Nce7 14. c4 Rd8 15. Nbd2 Ba5 16. Re2 Bc3 17. Rb1 0-0 18. Ng5 h6 19. Nh3 Qb6 20. Qc2 Nf5 21. Nf3 f6 22. Bf4 Nxf4 23. Nxf4 fxe5 24. Nxe5 Ne7 25. Bh7+ Kh8 26. Nfg6+ Nxg6 27. Nxg6+ Kxh7 28. Nxf8+ Kg8 29. Nxd7 Rxd7 30. Qd3 Re7 31. Rd1 Qc5 32. Qg3 Qxc4 33. Rc2 Qxb5 34. Qg6 Qf5 35. Qxf5 exf5 36. Kf1 Kf7 37. Re2 Rd7 38. Re3 Rc7 39. Re5 g6 40. Rd5 Re7 41. Rd8 b5 42. g3 g5 43. R8xd4 Bxd4 44. Rxd4 Rb7 45. a4 0-1

[Event "Sao Paulo op-C U1700 7th"]
[Site "Sao Paulo"]
[Date "2018.04.01"]
[Round "5"]
[White "Sanchez, Ivan Roberto"]
[Black "Krongold, Breno"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1639"]
[BlackElo "1631"]
[PlyCount "72"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. Nf3 e6 4. e3 Bd6 5. Ne5 Nbd7 6. Nd2 c6 7. Nxf7 Kxf7 8. Bxd6 Re8 9. Bd3 e5 10. dxe5 Nxe5 11. Bxe5 Rxe5 12. Nf3 Re7 13. h3 Qb6 14. b3 h6 15. 0-0 Bd7 16. Nh4 Kg8 17. Bf5 Bxf5 18. Nxf5 Re5 19. Nd4 Rae8 20. Nf3 R5e6 21. Qd4 Qxd4 22. Nxd4 Re5 23. Rfd1 Ne4 24. a3 Rf8 25. Nf3 Ref5 26. h4 g5 27. hxg5 hxg5 28. Rd4 g4 29. Nh2 Rxf2 30. c4 Rd2 31. cxd5 Rxd4 32. exd4 cxd5 33. Nxg4 Rf4 34. Ne5 Nd2 35. Nf3 Nxf3+ 36. gxf3 Rxf3 1/2-1/2

[Event "Sao Paulo op-C U1700 7th"]
[Site "Sao Paulo"]
[Date "2018.03.31"]
[Round "4"]
[White "Caporale, Giuseppe Guido"]
[Black "Sanchez, Ivan Roberto"]
[Result "1/2-1/2"]
[ECO "C02"]
[WhiteElo "1625"]
[BlackElo "1639"]
[PlyCount "138"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 cxd4 6. cxd4 f6 7. Bb5 Bd7 8. Nc3 Bb4 9. 0-0 Bxc3 10. bxc3 Nxe5 11. Nxe5 fxe5 12. Bxd7+ Qxd7 13. Qh5+ Qf7 14. Qxe5 Qf6 15. Qe2 a6 16. Ba3 Ne7 17. Qb2 b5 18. Bd6 Nc6 19. Qa3 Kf7 20. Rae1 Rhe8 21. Re3 Kg8 22. Rfe1 Qf5 23. Qb2 Rac8 24. Qe2 b4 25. Bxb4 Nxb4 26. cxb4 Rc2 27. Qf3 Qxf3 28. gxf3 Rxa2 29. Rxe6 Rxe6 30. Rxe6 Ra4 31. Rd6 Rxb4 32. Rxd5 Rb5 33. Rd7 a5 34. d5 a4 35. d6 Rd5 36. Ra7 Rxd6 37. Rxa4 Kf7 38. Kg2 Rf6 39. Re4 Rg6+ 40. Rg4 Ra6 41. h4 Rb6 42. Kg3 Rc6 43. Rg5 Rg6 44. Kf4 Rf6+ 45. Kg4 Rb6 46. h5 Rb2 47. Kg3 Kf6 48. f4 Rb1 49. Kg2 Rb4 50. Kg3 Rb3+ 51. Kg4 Rb1 52. Re5 Rg1+ 53. Kf3 g6 54. hxg6 Kxg6 55. Ke4 Re1+ 56. Kd5 Rd1+ 57. Ke6 Kg7 58. Ke7 Rd4 59. Rg5+ Kh6 60. Rg4 Kh5 61. f3 Rd3 62. Rg5+ Kh4 63. Rg4+ Kh5 64. Kf6 Rxf3 65. Rg5+ Kh4 66. f5 Rb3 67. Rg8 Rb6+ 68. Kg7 Rb7+ 69. Kh6 Rf7 1/2-1/2

[Event "Sao Paulo op-C U1700 7th"]
[Site "Sao Paulo"]
[Date "2018.03.31"]
[Round "3"]
[White "Sanchez, Ivan Roberto"]
[Black "Gabriel, Claudiomar"]
[Result "1-0"]
[ECO "A41"]
[WhiteElo "1639"]
[BlackElo "1571"]
[PlyCount "108"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 g6 2. Bf4 Bg7 3. Nf3 d6 4. h3 Nd7 5. e3 e5 6. Bh2 Nh6 7. c3 0-0 8. Be2 c6 9. Nbd2 Re8 10. dxe5 Nxe5 11. 0-0 Qb6 12. Nxe5 Bxe5 13. Bxe5 dxe5 14. Nc4 Qc7 15. Qd6 Qe7 16. Rfd1 Qg5 17. h4 Qxh4 18. Nxe5 Be6 19. Rd4 Qg5 20. Nf3 Qd8 21. Qh2 Ng4 22. Rxd8 Nxh2 23. Rxe8+ Rxe8 24. Kxh2 Rd8 25. b3 Kg7 26. Rd1 Re8 27. Rd4 c5 28. Rd2 b6 29. Ba6 Re7 30. Rd8 h6 31. Bc8 Bxc8 32. Rxc8 Kf6 33. b4 cxb4 34. cxb4 Kf5 35. Rc4 g5 36. Nd4+ Kf6 37. Rc6+ Ke5 38. Rxh6 Kd5 39. Rc6 Re4 40. Rc7 a5 41. bxa5 bxa5 42. Rxf7 Kc4 43. Rf5 Kd3 44. Rxa5 Kd2 45. Rxg5 Ke1 46. Kg3 Re7 47. a4 Ra7 48. a5 Rf7 49. Rf5 Rg7+ 50. Kf3 Kf1 51. g4 Rh7 52. a6 Rh2 53. Ke4 Rh4 54. f3 Rh6 1-0

[Event "Sao Paulo op-C U1700 7th"]
[Site "Sao Paulo"]
[Date "2018.03.30"]
[Round "2"]
[White "Bergamo, Victor Hugo Moura"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1505"]
[BlackElo "1639"]
[PlyCount "57"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 cxd4 6. cxd4 Bd7 7. Bd3 Qb6 8. 0-0 Nxd4 9. Nxd4 Qxd4 10. Nc3 a6 11. Re1 Ne7 12. Qf3 Ng6 13. Bxg6 hxg6 14. Bf4 Rc8 15. Rac1 Rc4 16. b3 Rc8 17. Rc2 Bb4 18. Rd1 Qa7 19. Rdc1 Bxc3 20. Rxc3 Rxc3 21. Rxc3 Bc6 22. Qg3 Qd4 23. Rc1 Rh5 24. h4 Rf5 25. Be3 Qxe5 26. Qg4 Qb2 27. Qg3 e5 28. Re1 Qc3 29. Qh2 0-1

[Event "Sao Paulo op-C U1700 7th"]
[Site "Sao Paulo"]
[Date "2018.03.30"]
[Round "1"]
[White "Sanchez, Ivan Roberto"]
[Black "Gomes, Emerson De Lima"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "1639"]
[BlackElo "1338"]
[PlyCount "33"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. cxd5 exd5 5. Nf3 Be7 6. 0-0 0-0 7. d4 c5 8. dxc5 Na6 9. Be3 Nxc5 10. Nbd2 b6 11. Rc1 Ba6 12. Nd4 Qd7 13. N2f3 Ng4 14. Bf4 Ne6 15. Nxe6 Qxe6 16. Nd4 Qf6 17. Rc6 1-0

[Event "Florianopolis op 4th"]
[Site "Florianopolis"]
[Date "2018.01.24"]
[Round "8"]
[White "Eyng, Stefan Kuster"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "C01"]
[BlackElo "1634"]
[PlyCount "62"]
[EventDate "2018.01.19"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Be2 Bd6 6. Bg5 h6 7. Bh4 0-0 8. Nc3 c6 9. Qd2 Bf5 10. 0-0-0 Nbd7 11. Kb1 Qc7 12. h3 Rfe8 13. Bd3 Bf4 14. Nb5 cxb5 15. Qb4 Bxd3 16. Rxd3 a6 17. g4 Rac8 18. Rc3 Qd6 19. Qxd6 Bxd6 20. Rd3 Re2 21. Rd2 Rxd2 22. Nxd2 g5 23. Bg3 Bxg3 24. fxg3 Re8 25. c3 Re3 26. Rg1 Ne4 27. Nxe4 Rxe4 28. Kc2 Re2+ 29. Kb3 a5 30. Rf1 Nb6 31. Rf6 Nc4 0-1

[Event "Florianopolis op 4th"]
[Site "Florianopolis"]
[Date "2018.01.23"]
[Round "7"]
[White "Sanchez, Ivan Roberto"]
[Black "Flesch, Gustavo Henrique"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1634"]
[BlackElo "1256"]
[PlyCount "33"]
[EventDate "2018.01.19"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 e6 3. e3 Nf6 4. Nf3 Be7 5. Bd3 0-0 6. Nbd2 c5 7. c3 Nc6 8. Ne5 c4 9. Bc2 Bd6 10. h3 Qc7 11. Ndf3 Nd7 12. Bxh7+ Kh8 13. Nxd7 Bxd7 14. Bxd6 Qxd6 15. Bc2 b5 16. Ne5 Nxe5 17. Qh5+ 1-0

[Event "Florianopolis op 4th"]
[Site "Florianopolis"]
[Date "2018.01.22"]
[Round "6"]
[White "Reis Junior, Evandro De Laet"]
[Black "Sanchez, Ivan Roberto"]
[Result "1-0"]
[ECO "A17"]
[WhiteElo "2035"]
[BlackElo "1634"]
[PlyCount "81"]
[EventDate "2018.01.19"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. Nc3 Bb4 6. 0-0 Bxc3 7. bxc3 0-0 8. d3 d6 9. h3 Nbd7 10. a4 a5 11. Be3 Rb8 12. Qc2 Qe7 13. Nd4 Bxg2 14. Kxg2 Qe8 15. Nb5 Rb7 16. Rab1 e5 17. Kh2 Qe7 18. d4 e4 19. Rfd1 c6 20. Na3 d5 21. c5 Rfb8 22. Bf4 Ra8 23. Rb3 Ne8 24. Rdb1 g5 25. Be3 Nc7 26. cxb6 Na6 27. Qc1 h6 28. c4 dxc4 29. Nxc4 Nb4 30. Qd2 Nd5 31. Nxa5 Rxb6 32. Rxb6 N5xb6 33. Nxc6 Qa3 34. Bxg5 hxg5 35. Qxg5+ Kf8 36. a5 Qd6 37. axb6 Qxc6 38. Qf4 Qb7 39. Rb5 Nxb6 40. Qd6+ Kg8 41. Rg5+ 1-0

[Event "Florianopolis op 4th"]
[Site "Florianopolis"]
[Date "2018.01.22"]
[Round "5"]
[White "Sanchez, Ivan Roberto"]
[Black "Farias, Edilsom"]
[Result "0-1"]
[ECO "A30"]
[WhiteElo "1634"]
[BlackElo "1883"]
[PlyCount "50"]
[EventDate "2018.01.19"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 c5 2. b3 e5 3. Bb2 Nc6 4. Nc3 g6 5. g3 Bg7 6. Bg2 Nge7 7. Nf3 d6 8. 0-0 0-0 9. d3 Rb8 10. Qd2 a6 11. Ne1 Be6 12. Nc2 d5 13. cxd5 Nxd5 14. Nxd5 Bxd5 15. Bxd5 Qxd5 16. Ne3 Qd7 17. Rac1 b6 18. f4 exf4 19. Bxg7 Kxg7 20. Rxf4 f5 21. g4 fxg4 22. Rxg4 Rbc8 23. Rh4 Qe7 24. Ng2 Nd4 25. Rc4 Qd7 0-1

[Event "Florianopolis op 4th"]
[Site "Florianopolis"]
[Date "2018.01.21"]
[Round "4"]
[White "Almeida Junior, Alvaro Alves de"]
[Black "Sanchez, Ivan Roberto"]
[Result "1/2-1/2"]
[ECO "C07"]
[WhiteElo "2015"]
[BlackElo "1634"]
[PlyCount "147"]
[EventDate "2018.01.19"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd6 7. 0-0 Nc6 8. Nb3 Be7 9. Nbxd4 Nf6 10. Bb3 Nxd4 11. Nxd4 Bd7 12. Bg5 0-0 13. c3 Rac8 14. Bc2 Rc5 15. Bh4 Rd8 16. Qd3 Rh5 17. Bg3 Qb6 18. Qe2 Bd6 19. Rfd1 Bxg3 20. hxg3 e5 21. Nf3 Ng4 22. Nh4 Nf6 23. Rd2 Bc6 24. Rad1 Rxd2 25. Qxd2 g6 26. Qd6 Kg7 27. b4 e4 28. Qe7 Ng4 29. Rd2 Re5 30. Qd8 Qxd8 31. Rxd8 e3 32. fxe3 Rxe3 33. Rd1 Rxc3 34. Bb3 Rxg3 35. Rf1 f6 36. Rf4 Ne3 37. Kf2 g5 38. Kxg3 gxf4+ 39. Kf2 Bd5 40. Nf5+ Kf8 41. Bxd5 Nxd5 42. a3 b6 43. Kf3 a5 44. bxa5 bxa5 45. Ke4 Nc3+ 46. Kxf4 Nb5 47. a4 Nc3 48. Nd6 Nxa4 49. Nc4 Nc5 50. Nxa5 Ne6+ 51. Kf5 Kf7 52. Nc6 Ng7+ 53. Kf4 Ke6 54. Nd4+ Ke7 55. Nf3 Ne6+ 56. Kf5 Kf7 57. g3 Ng7+ 58. Kg4 Ke6 59. Nd4+ Ke5 60. Nf3+ Ke4 61. Nd2+ Ke3 62. Nc4+ Kd4 63. Nd6 h5+ 64. Kf4 Kd5 65. Nf5 Ne6+ 66. Ke3 Ke5 67. Nh4 Ng7 68. Kf3 Nf5 69. Ng6+ Kd4 70. g4 hxg4+ 71. Kxg4 Ng7 72. Kf4 Kd5 73. Ne7+ Ke6 74. Ng8 1/2-1/2

[Event "Florianopolis op 4th"]
[Site "Florianopolis"]
[Date "2018.01.20"]
[Round "3"]
[White "Sanchez, Ivan Roberto"]
[Black "Haddix, Micah McClary"]
[Result "1-0"]
[ECO "B26"]
[WhiteElo "1634"]
[PlyCount "57"]
[EventDate "2018.01.19"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 c5 2. d3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nc3 Nf6 6. Be3 d6 7. Qd2 Ng4 8. Bf4 e5 9. Bg5 f6 10. Be3 Nxe3 11. fxe3 Be6 12. Nge2 0-0 13. 0-0 Qd7 14. Rf2 b5 15. Nxb5 Rab8 16. c4 a6 17. Nbc3 Rb7 18. Nd5 Bxd5 19. exd5 Ne7 20. b3 Bh6 21. Nc3 f5 22. Bh3 Bxe3 23. Qxe3 f4 24. Bxd7 fxe3 25. Be6+ Kg7 26. Rxf8 Kxf8 27. Rf1+ Kg7 28. Ne4 Nf5 29. Bxf5 1-0

[Event "Florianopolis op 4th"]
[Site "Florianopolis"]
[Date "2018.01.20"]
[Round "2"]
[White "Teles, Lucas Marquetotti"]
[Black "Sanchez, Ivan Roberto"]
[Result "1/2-1/2"]
[ECO "B10"]
[BlackElo "1634"]
[PlyCount "60"]
[EventDate "2018.01.19"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 c6 2. d3 d5 3. exd5 cxd5 4. Nf3 Bg4 5. Be2 Nd7 6. 0-0 Ngf6 7. h3 Bh5 8. Bf4 Bxf3 9. Bxf3 Qb6 10. Qd2 e6 11. Nc3 Rc8 12. Rab1 Bd6 13. Rfe1 0-0 14. d4 Bxf4 15. Qxf4 Rc4 16. Red1 a6 17. Qe3 Rfc8 18. Be2 R4c7 19. Bd3 Qd6 20. Qf3 Nb6 21. Re1 Nc4 22. Re2 Nxb2 23. Rxb2 Rxc3 24. Rxb7 R3c7 25. Rb2 Kh8 26. Re1 a5 27. Qe2 Qa3 28. Reb1 Qc3 29. Qe5 Nd7 30. Qd6 g6 1/2-1/2

[Event "Florianopolis op 4th"]
[Site "Florianopolis"]
[Date "2018.01.19"]
[Round "1"]
[White "Sanchez, Ivan Roberto"]
[Black "Aoyama, Edmundo"]
[Result "0-1"]
[ECO "B26"]
[WhiteElo "1634"]
[BlackElo "1836"]
[PlyCount "66"]
[EventDate "2018.01.19"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 c5 2. d3 d6 3. g3 g6 4. Bg2 Bg7 5. Nc3 Nc6 6. Be3 a6 7. Qd2 Rb8 8. f4 Nd4 9. Nh3 Bxh3 10. Bxh3 Nf3+ 11. Ke2 Nxd2 12. Bxd2 e6 13. Raf1 Nf6 14. Rf2 0-0 15. Rhf1 d5 16. e5 Nd7 17. Nd1 Qe7 18. Ne3 f6 19. Nxd5 exd5 20. e6 f5 21. Kd1 Qxe6 22. Re1 Qf7 23. c3 Rfe8 24. Ref1 b5 25. g4 d4 26. gxf5 gxf5 27. Rg1 Qh5+ 28. Kc2 Qxh3 29. Rfg2 Re7 30. Rg5 Rf7 31. cxd4 cxd4 32. Bb4 Rc8+ 33. Kd2 Qe3+ 0-1

[Event "BRA-ch Amateur U1800"]
[Site "Sao Paulo"]
[Date "2017.10.15"]
[Round "7"]
[White "Sanchez, Ivan Roberto"]
[Black "De Paiva, Ricardo Carisio Bat"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "1652"]
[BlackElo "1793"]
[PlyCount "58"]
[EventDate "2017.10.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 d6 3. e3 Nf6 4. Nf3 e4 5. Nd4 Bg4 6. Be2 Bd7 7. 0-0 c5 8. Nb5 a6 9. N5a3 Be7 10. f3 exf3 11. Bxf3 Bc6 12. c4 0-0 13. Nc2 d5 14. d3 dxc4 15. Bxc6 Nxc6 16. dxc4 Qxd1 17. Rxd1 b5 18. Nd2 Ng4 19. h3 Nge5 20. cxb5 axb5 21. Ba3 Nb4 22. Bxb4 cxb4 23. Ne4 f5 24. Rd5 fxe4 25. Rxe5 Bf6 26. Rxe4 Bxa1 27. Nxa1 Rfe8 28. Rf4 Rxe3 29. Rf5 Re4 0-1

[Event "BRA-ch Amateur U1800"]
[Site "Sao Paulo"]
[Date "2017.10.14"]
[Round "6"]
[White "Cordeiro da Silva, Felipe"]
[Black "Sanchez, Ivan Roberto"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "1783"]
[BlackElo "1652"]
[PlyCount "67"]
[EventDate "2017.10.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. g3 b6 5. Bg2 Bb7 6. 0-0 cxd4 7. Na3 Be7 8. Nb5 0-0 9. Nbxd4 Qc7 10. b3 Rd8 11. Nb5 Qc6 12. Ne1 d5 13. Nd3 a6 14. Ne5 Qc8 15. Nd4 dxc4 16. Nxc4 Bxg2 17. Kxg2 b5 18. Ne5 Qc3 19. Be3 Ng4 20. Nxg4 h5 21. Ne5 f6 22. Nd3 e5 23. Rc1 Qa5 24. Ne6 Rd6 25. Rc8+ Kf7 26. Nec5 Qxa2 27. Ne4 Rd7 28. f4 exf4 29. Rxf4 Rd8 30. Rxd8 Bxd8 31. Ndc5 Bc7 32. Qd5+ Kg6 33. Qf5+ Kh6 34. Rh4+ 1-0

[Event "BRA-ch Amateur U1800"]
[Site "Sao Paulo"]
[Date "2017.10.14"]
[Round "5"]
[White "Sanchez, Ivan Roberto"]
[Black "Lacerda, Vinicius"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "1652"]
[BlackElo "1783"]
[PlyCount "100"]
[EventDate "2017.10.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. Nf3 Bg7 4. c4 0-0 5. Nc3 d6 6. e4 Na6 7. h3 c5 8. d5 Nc7 9. Bd3 a6 10. a4 Bd7 11. a5 Rb8 12. Na4 Nh5 13. Bc1 Na8 14. Nc3 b5 15. cxb5 axb5 16. 0-0 c4 17. Bb1 Nc7 18. a6 Ra8 19. a7 b4 20. Ne2 Nb5 21. Ra4 Rxa7 22. Rxb4 Qc8 23. Be3 Ra1 24. Qc2 c3 25. Rc1 cxb2 26. Qxc8 Bxc8 27. Re1 Nc3 28. Rxb2 Nxe4 29. Ra2 Rxa2 30. Bxa2 Nhf6 31. Rc1 Bb7 32. Rd1 Ra8 33. Bc4 Nd7 34. Bb5 Ndc5 35. Bd4 Bxd4 36. Rxd4 Ra1+ 37. Kh2 Nxf2 38. Kg3 Nfe4+ 39. Kf4 e5+ 40. dxe6 Nxe6+ 41. Ke3 Nxd4 42. Nexd4 Ra2 43. Nc6 Nc3 44. Ncd4 Nxb5 45. Nxb5 Rxg2 46. Nxd6 Bc6 47. Ne5 Bd5 48. Kd4 Be6 49. h4 Rd2+ 50. Kc5 Rd5+ 0-1

[Event "BRA-ch Amateur U1800"]
[Site "Sao Paulo"]
[Date "2017.10.13"]
[Round "4"]
[White "Melo, Sergio Roberto Samp"]
[Black "Sanchez, Ivan Roberto"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "1756"]
[BlackElo "1652"]
[PlyCount "133"]
[EventDate "2017.10.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c3 c5 2. Qc2 Nc6 3. e4 e6 4. Nf3 d5 5. Bb5 Bd7 6. exd5 exd5 7. 0-0 Be7 8. d4 c4 9. b3 cxb3 10. axb3 a6 11. Bd3 Nf6 12. Bg5 h6 13. Bxf6 Bxf6 14. Re1+ Ne7 15. Ne5 Bxe5 16. Rxe5 0-0 17. Nd2 Be6 18. Nf3 Rc8 19. Qd2 Qb6 20. Rb1 Qa5 21. Re3 Nc6 22. b4 Qd8 23. b5 axb5 24. Rxb5 Na5 25. Qb2 Rb8 26. Ne5 Qc7 27. h3 Nc6 28. Rc5 Qd8 29. Nf3 Ne7 30. Rb5 Bd7 31. Rxb7 Ng6 32. Rxb8 Qxb8 33. Qxb8 Rxb8 34. Bxg6 fxg6 35. Kh2 Re8 36. Ne5 Bf5 37. Kg3 g5 38. h4 gxh4+ 39. Kxh4 g5+ 40. Kg3 Ra8 41. Nc6 Kf7 42. Nb4 Rd8 43. Re5 Be6 44. Nd3 Kf6 45. Nc5 Bf7 46. Kf3 Rc8 47. g4 Rc7 48. Ke3 h5 49. gxh5 Rxc5 50. Kd3 Rc8 51. Re3 Bxh5 52. Kd2 Ra8 53. Re5 Ra2+ 54. Ke1 Bf7 55. Kf1 Rc2 56. Re3 g4 57. Kg2 Bg6 58. Kg3 Be4 59. Kxg4 Rxf2 60. c4 Rc2 61. cxd5 Bxd5 62. Re5 Be6+ 63. Kf4 Ra2 64. Ke3 Ra3+ 65. Kf4 Bf7 66. Ke4 Bg6+ 67. Kd5 1/2-1/2

[Event "BRA-ch Amateur U1800"]
[Site "Sao Paulo"]
[Date "2017.10.13"]
[Round "3"]
[White "Sanchez, Ivan Roberto"]
[Black "De Moura, Valderi Nascimento"]
[Result "0-1"]
[ECO "A17"]
[WhiteElo "1652"]
[BlackElo "1723"]
[PlyCount "92"]
[EventDate "2017.10.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. g3 Bb4 4. Qb3 Nc6 5. a3 Nd4 6. Qd1 Bxc3 7. dxc3 Nf5 8. Bg2 e5 9. Nf3 Qe7 10. 0-0 h6 11. Qc2 Qe6 12. Bh3 Nd4 13. cxd4 Qxh3 14. dxe5 Ng4 15. e4 0-0 16. Qe2 Re8 17. Re1 b6 18. Qf1 Qh5 19. h3 Nxe5 20. Nxe5 Qxe5 21. Qd3 d6 22. Kg2 Bb7 23. f3 Re6 24. Rb1 Rg6 25. g4 Re6 26. Bd2 h5 27. Qc3 hxg4 28. hxg4 Qc5 29. b4 Qc6 30. b5 Qd7 31. Re2 Rae8 32. Kg3 c6 33. a4 d5 34. bxc6 Rxc6 35. Qd4 Rxc4 36. Qd3 Rxa4 37. Rh1 f5 38. Reh2 fxe4 39. Rh8+ Kf7 40. fxe4 Rxh8 41. Rxh8 Qd6+ 42. Kh4 Qh2+ 43. Kg5 Qxh8 44. Qf1+ Ke7 45. e5 Qh6+ 46. Kf5 g6# 0-1

[Event "BRA-ch Amateur U1800"]
[Site "Sao Paulo"]
[Date "2017.10.12"]
[Round "2"]
[White "Ritzel, Ricardo Agne"]
[Black "Sanchez, Ivan Roberto"]
[Result "1/2-1/2"]
[ECO "C84"]
[WhiteElo "1737"]
[BlackElo "1652"]
[PlyCount "87"]
[EventDate "2017.10.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 d6 7. h3 Na5 8. Nc3 Nxb3 9. axb3 Bd7 10. d3 Be7 11. Be3 0-0 12. Qd2 Re8 13. Ne2 c5 14. Ng3 Qc8 15. Nh2 Be6 16. f4 exf4 17. Bxf4 Nd7 18. Nf3 f6 19. d4 Nf8 20. d5 Bd7 21. b4 Ng6 22. Be3 cxb4 23. Qxb4 Qc7 24. Ra3 a5 25. Rc3 Qb8 26. Qd4 b4 27. Rc6 Bxc6 28. dxc6 Qc7 29. Qd5+ Kh8 30. Nd4 Ne5 31. Ngf5 Bf8 32. Nb5 Qxc6 33. Qxc6 Nxc6 34. Nc7 Rac8 35. Nxe8 Rxe8 36. Ng3 Ne5 37. Ra1 Ra8 38. b3 Kg8 39. Bb6 Nc6 40. Nf5 g6 41. Ne3 Rb8 42. Nc4 Kf7 43. Kf2 Ke6 44. Ke3 1/2-1/2

[Event "BRA-ch Amateur U1800"]
[Site "Sao Paulo"]
[Date "2017.10.12"]
[Round "1"]
[White "Sanchez, Ivan Roberto"]
[Black "Passos Coutinho, Eduardo"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "1652"]
[BlackElo "1764"]
[PlyCount "111"]
[EventDate "2017.10.12"]
[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 g6 5. c4 Bg7 6. Nc3 Nf6 7. Be2 0-0 8. Be3 Nc6 9. f3 Bd7 10. 0-0 Rc8 11. Rc1 Ne5 12. b3 h6 13. Na4 b6 14. Nb5 Nc6 15. Qd2 Kh7 16. Nxa7 Rb8 17. Nxc6 Bxc6 18. Nc3 Nd7 19. Bd4 Nc5 20. Bxg7 Kxg7 21. Nd5 Qd7 22. Bd1 Rfd8 23. Bc2 b5 24. Ne3 Qa7 25. b4 Ne6 26. Bb3 Nd4 27. Rfd1 e5 28. Kh1 bxc4 29. Bxc4 Ba4 30. Re1 Rdc8 31. Bd5 Bb5 32. Rxc8 Rxc8 33. f4 f6 34. fxe5 dxe5 35. Rc1 Rc7 36. Rxc7+ Qxc7 37. Qb2 h5 38. h3 Ne2 39. Qc2 Qxc2 40. Nxc2 Bd3 41. Na3 Ng3+ 42. Kh2 Nxe4 43. b5 Nc5 44. Nc4 Bxc4 45. Bxc4 e4 46. b6 Nd7 47. b7 Kf8 48. a4 Ke7 49. a5 Nb8 50. Kg3 Kd6 51. a6 Nxa6 52. Bxa6 Kc7 53. Kf4 f5 54. Kg5 Kb8 55. Kxg6 f4 56. Kxh5 1-0

[Event "Pocos de Caldas op"]
[Site "Pocos de Caldas"]
[Date "2017.03.12"]
[Round "5"]
[White "Dias, Juliane de Oliveira"]
[Black "Sanchez, Ivan Roberto"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "1860"]
[BlackElo "1622"]
[PlyCount "127"]
[EventDate "2017.03.10"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Nxc6 bxc6 7. e5 Ng8 8. Bc4 e6 9. 0-0 Qh4 10. Bd3 Bc5 11. Ne4 Qe7 12. Bg5 f6 13. exf6 gxf6 14. Qh5+ Kd8 15. Bh4 d5 16. Nxc5 Qxc5 17. Qf7 Qe7 18. Qxe7+ Kxe7 19. f4 Rb8 20. b3 h5 21. Rae1 c5 22. c3 Rb6 23. f5 Kf7 24. fxe6+ Bxe6 25. Bf5 Bxf5 26. Rxf5 Ne7 27. Rf3 Ng6 28. Bf2 Rc6 29. Rd1 Ne7 30. b4 cxb4 31. cxb4 Rd8 32. Bc5 Rxc5 33. bxc5 d4 34. Rdf1 f5 35. Rd3 Ke6 36. Re1+ Kf6 37. Red1 Nc6 38. Kf2 Ke5 39. Ra3 a5 40. Rh3 Rd5 41. Re1+ Kf4 42. Rxh5 Rxc5 43. g3+ Kg4 44. Rh4+ Kg5 45. Ke2 Rc2+ 46. Kd3 Rc3+ 47. Kd2 Ra3 48. Re6 Rxa2+ 49. Kd3 Ra3+ 50. Kc4 Rc3+ 51. Kd5 Nb4+ 52. Kxd4 Rc2 53. Rhh6 Kg4 54. Ke3 Rc3+ 55. Kd4 Rc2 56. Re3 Rc8 57. Rb3 Rd8+ 58. Kc5 Rc8+ 59. Kb5 Rb8+ 60. Kxa5 Nc6+ 61. Ka4 Rxb3 62. Kxb3 Nd4+ 63. Kc4 Nf3 64. Kd3 1-0

[Event "Pocos de Caldas op"]
[Site "Pocos de Caldas"]
[Date "2017.03.12"]
[Round "6"]
[White "Sanchez, Ivan Roberto"]
[Black "Paschoa, Lazaro dos Reis"]
[Result "1-0"]
[ECO "B45"]
[WhiteElo "1622"]
[BlackElo "1486"]
[PlyCount "53"]
[EventDate "2017.03.10"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 e6 4. d4 cxd4 5. Nxd4 Nf6 6. Bc4 Bb4 7. f3 0-0 8. a3 Bxc3+ 9. bxc3 d5 10. exd5 exd5 11. Be2 a6 12. 0-0 Qc7 13. Kh1 Ne5 14. Bf4 Re8 15. Qd2 Bd7 16. Rfe1 Nh5 17. Be3 Nc4 18. Bxc4 Qxc4 19. Nb3 Nf6 20. Bd4 Rxe1+ 21. Rxe1 Re8 22. h3 h6 23. Nc5 Rxe1+ 24. Qxe1 Bc6 25. Qg3 Nh5 26. Qg4 g6 27. Qc8+ 1-0

[Event "Pocos de Caldas op"]
[Site "Pocos de Caldas"]
[Date "2017.03.11"]
[Round "4"]
[White "Pereira, Marcos Luciano"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "A47"]
[WhiteElo "1784"]
[BlackElo "1622"]
[PlyCount "58"]
[EventDate "2017.03.10"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. Nbd2 c5 6. c3 cxd4 7. exd4 Be7 8. Qc2 h6 9. Ne4 d6 10. 0-0 Nbd7 11. Re1 Rc8 12. a4 Nd5 13. Qe2 0-0 14. Ng3 N5f6 15. Nf5 Bxf3 16. Nxe7+ Qxe7 17. Qxf3 g5 18. a5 Kg7 19. axb6 Nxb6 20. h4 g4 21. Qf4 Rh8 22. Ra5 Nbd5 23. Qg3 Qc7 24. f3 Qxa5 25. fxg4 Qb6 26. g5 hxg5 27. Qxg5+ Kf8 28. c4 Qxd4+ 29. Kh1 Rxh4+ 0-1

[Event "Pocos de Caldas op"]
[Site "Pocos de Caldas"]
[Date "2017.03.11"]
[Round "3"]
[White "Sanchez, Ivan Roberto"]
[Black "Faria, Leonardo Vieira"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "1622"]
[BlackElo "1792"]
[PlyCount "76"]
[EventDate "2017.03.10"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 Nbd7 5. cxd5 cxd5 6. e3 e6 7. Bd3 Bd6 8. Bd2 0-0 9. 0-0 Re8 10. Rc1 a6 11. Rc2 e5 12. dxe5 Nxe5 13. Nxe5 Bxe5 14. Be2 Bf5 15. Rc1 Rc8 16. f4 Bb8 17. Be1 Ba7 18. Bd2 Bxe3+ 19. Bxe3 Rxe3 20. Bf3 d4 21. Bxb7 Rb8 22. g4 Bxg4 23. Bf3 Bxf3 24. Rxf3 Rxf3 25. Qxf3 dxc3 26. Qxc3 h6 27. b3 Ne4 28. Qc2 Qb6+ 29. Kg2 Qe3 30. Rd1 Qxf4 31. Rd4 Qg4+ 32. Kf1 Ng3+ 33. hxg3 Qxd4 34. Qe2 Rd8 35. Qxa6 Qd3+ 36. Qxd3 Rxd3 37. Ke2 Rxg3 38. Kf2 Rc3 0-1

[Event "Pocos de Caldas op"]
[Site "Pocos de Caldas"]
[Date "2017.03.10"]
[Round "2"]
[White "Barbosa, Flavio Novais"]
[Black "Sanchez, Ivan Roberto"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1843"]
[BlackElo "1622"]
[PlyCount "27"]
[EventDate "2017.03.10"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 e6 4. e3 Bd6 5. Bg3 0-0 6. Bd3 Re8 7. Nbd2 c6 8. Ne5 Bxe5 9. dxe5 Nfd7 10. c3 c5 11. Qh5 Nf8 12. Nf3 h6 13. Bf4 f5 14. exf6 1-0

[Event "Pocos de Caldas op"]
[Site "Pocos de Caldas"]
[Date "2017.03.10"]
[Round "1"]
[White "Sanchez, Ivan Roberto"]
[Black "Lima, Valdenicio Marcelin"]
[Result "1/2-1/2"]
[ECO "E87"]
[WhiteElo "1622"]
[BlackElo "2020"]
[PlyCount "66"]
[EventDate "2017.03.10"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. d5 a5 8. Bd3 Na6 9. Nge2 Nc5 10. 0-0 Nfd7 11. Bc2 f5 12. f4 exf4 13. Bxf4 Nxe4 14. Bxe4 fxe4 15. Ng3 Nc5 16. Qc2 Bd4+ 17. Kh1 Nd3 18. Qd2 Bxc3 19. bxc3 Nxf4 20. Rxf4 Rxf4 21. Qxf4 Qf8 22. Qxe4 Bd7 23. Rf1 Qg7 24. Qf4 Rf8 25. Qxf8+ Qxf8 26. Rxf8+ Kxf8 27. Kg1 b5 28. Kf2 Ke7 29. Ke3 c5 30. dxc6 Bxc6 31. cxb5 Bxb5 32. Kd4 Ke6 33. Ne4 h6 1/2-1/2

[Event "Sao Bernardo do Campo op"]
[Site "Sao Bernardo do Campo"]
[Date "2016.07.24"]
[Round "5"]
[White "Carneiro, Thomas Sobral"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "B54"]
[BlackElo "1696"]
[PlyCount "62"]
[EventDate "2016.07.22"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 e5 5. Nf3 d6 6. c4 Be7 7. Nc3 Nc6 8. Be2 Nf6 9. 0-0 0-0 10. b3 Qb6 11. Bb2 Re8 12. Nd5 Qd8 13. Qc2 Bf8 14. h3 Be6 15. Rfd1 Bxd5 16. cxd5 Ne7 17. Bc4 Rc8 18. Qd3 Ng6 19. g3 Qd7 20. Qe2 Qxh3 21. Rac1 Qg4 22. Bd3 Nf4 23. Qe3 Nxd3 24. Rxd3 Rxc1+ 25. Bxc1 Rc8 26. Ba3 Rc2 27. Qb6 Qd7 28. Qa7 Rxa2 29. Bb4 Nxe4 30. Qa8 Rxf2 31. Nxe5 Qh3 0-1

[Event "Sao Bernardo do Campo op"]
[Site "Sao Bernardo do Campo"]
[Date "2016.07.24"]
[Round "6"]
[White "Sanchez, Ivan Roberto"]
[Black "Freire, Leandro da Costa"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "1696"]
[BlackElo "1296"]
[PlyCount "75"]
[EventDate "2016.07.22"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. e4 Nbd7 6. Bd3 0-0 7. Bf4 Nh5 8. Be3 e5 9. Qd2 Nhf6 10. Bh6 exd4 11. Nxd4 Nc5 12. Bxg7 Nxd3+ 13. Qxd3 Kxg7 14. 0-0 Re8 15. Rfe1 Bd7 16. Rad1 c6 17. Nc2 Re6 18. Qd4 Qe7 19. f3 b6 20. Ne2 g5 21. Ng3 Kg8 22. Nf5 Qf8 23. Nxd6 Ne8 24. Nxf7 Qxf7 25. Qxd7 Qxd7 26. Rxd7 Nf6 27. Rd3 c5 28. Red1 Kg7 29. Rd8 Rxd8 30. Rxd8 Kg6 31. Ne3 Nh5 32. Kf2 Nf4 33. g3 Nh3+ 34. Kg2 Rf6 35. Ng4 Nf4+ 36. gxf4 Rxf4 37. Rd6+ Kh5 38. Rh6# 1-0

[Event "Sao Bernardo do Campo op"]
[Site "Sao Bernardo do Campo"]
[Date "2016.07.23"]
[Round "3"]
[White "Kamura, Victor da Costa"]
[Black "Sanchez, Ivan Roberto"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1298"]
[BlackElo "1696"]
[PlyCount "103"]
[EventDate "2016.07.22"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Be7 5. Nc3 Nf6 6. Be2 0-0 7. 0-0 Re8 8. Bf4 c6 9. Qd3 Ne4 10. Nd2 Bg5 11. Bxg5 Nxg5 12. Rfe1 g6 13. Nf3 Bf5 14. Qd2 Nd7 15. Qxg5 Qb6 16. Nd1 Bxc2 17. b3 Nf8 18. Ne3 Ne6 19. Qh6 Nxd4 20. Nxd4 Qxd4 21. Nxc2 Qb2 22. Qc1 Qf6 23. Bf3 Red8 24. Ne3 Rac8 25. Ng4 Qd6 26. Qg5 Rc7 27. Nf6+ Kg7 28. Ne8+ Rxe8 29. Rxe8 f6 30. Qe3 d4 31. Qe4 Kf7 32. Re1 f5 33. Qe6+ Qxe6 34. R1xe6 d3 35. Bd1 c5 36. f3 b5 37. Kf2 c4 38. bxc4 bxc4 39. Ke3 Rd7 40. Kd2 f4 41. Re4 Rc7 42. Rd8 Rb7 43. Rxc4 Rb2+ 44. Kxd3 Rxa2 45. Rxf4+ Kg7 46. Rd7+ Kh6 47. Rff7 a5 48. Rxh7+ Kg5 49. h4+ Kf4 50. h5 gxh5 51. Rxh5 Rxg2 52. Rd4+ 1-0

[Event "Sao Bernardo do Campo op"]
[Site "Sao Bernardo do Campo"]
[Date "2016.07.23"]
[Round "4"]
[White "Sanchez, Ivan Roberto"]
[Black "Ferreira de Souza, Ricardo"]
[Result "0-1"]
[ECO "A27"]
[WhiteElo "1696"]
[BlackElo "1402"]
[PlyCount "102"]
[EventDate "2016.07.22"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 f5 3. e3 Nf6 4. Nf3 Nc6 5. d4 e4 6. Nd2 Bb4 7. a3 Bxc3 8. bxc3 d6 9. Rb1 0-0 10. d5 Ne5 11. Be2 Nfg4 12. h4 Qf6 13. Bb2 c5 14. dxc6 bxc6 15. c5 dxc5 16. Bxg4 Nxg4 17. c4 Ne5 18. 0-0 Qd6 19. Qb3 Ba6 20. Bxe5 Qxe5 21. Qa4 Rad8 22. Qxa6 Rxd2 23. Qxa7 Qe6 24. Rb7 Qf6 25. Qxc5 f4 26. exf4 Qxf4 27. Qe3 Qd6 28. a4 Rd1 29. Qb3 Rd3 30. c5+ Rxb3 31. cxd6 Rxb7 32. Rd1 Rd7 33. Kf1 Rfd8 34. Ke2 Rxd6 35. Ra1 Ra8 36. Ke3 c5 37. Ra2 Rd4 38. a5 Ra6 39. Ra3 Kf7 40. Ra2 Ke6 41. g3 Kd6 42. f3 exf3 43. Kxf3 Kc6 44. Kg2 Kb5 45. Rb2+ Rb4 46. Rf2 Rxa5 47. Rf7 Rg4 48. Rb7+ Kc6 49. Rb3 c4 50. Rf3 Ra2+ 51. Kh3 h5 0-1

[Event "Sao Bernardo do Campo op"]
[Site "Sao Bernardo do Campo"]
[Date "2016.07.22"]
[Round "1"]
[White "Pessoto, Lara Garcia"]
[Black "Sanchez, Ivan Roberto"]
[Result "0-1"]
[ECO "B28"]
[BlackElo "1696"]
[PlyCount "56"]
[EventDate "2016.07.22"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 e5 5. Nf5 d6 6. Nc3 Bxf5 7. exf5 Nf6 8. Bc4 Qc7 9. b3 b5 10. Qd3 bxc4 11. bxc4 Nbd7 12. 0-0 Be7 13. Ba3 0-0 14. c5 Nxc5 15. Qf3 Rfd8 16. Rab1 Rab8 17. Nd5 Nxd5 18. Qxd5 Rxb1 19. Rxb1 Rb8 20. Rd1 Qb7 21. Bxc5 Qxd5 22. g3 Qxd1+ 23. Kg2 dxc5 24. a4 Qxc2 25. a5 Qe4+ 26. f3 Rb2+ 27. Kh3 Qxf5+ 28. g4 Qxf3# 0-1

[Event "Sao Bernardo do Campo op"]
[Site "Sao Bernardo do Campo"]
[Date "2016.07.22"]
[Round "2"]
[White "Sanchez, Ivan Roberto"]
[Black "Rodrigo da Silva, Edson"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "1696"]
[BlackElo "1979"]
[PlyCount "150"]
[EventDate "2016.07.22"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. e3 Bf5 4. Nc3 e6 5. cxd5 exd5 6. Bd3 Bxd3 7. Qxd3 Nf6 8. Bd2 Bd6 9. Nge2 Nbd7 10. e4 dxe4 11. Nxe4 Nxe4 12. Qxe4+ Qe7 13. Qxe7+ Bxe7 14. 0-0-0 0-0 15. Rhe1 Rfe8 16. Nc3 Nf6 17. Bg5 h6 18. Bxf6 Bxf6 19. Ne4 Be7 20. Kc2 Bb4 21. Nc3 Rxe1 22. Rxe1 Rd8 23. a3 Ba5 24. Re7 Rxd4 25. Rxb7 Bb6 26. Rb8+ Kh7 27. f3 Rd7 28. Re8 Bd4 29. Re2 Rb7 30. Kd3 c5 31. Kc4 a6 32. Na4 Rb5 33. b3 Bg1 34. h3 Rb7 35. Nxc5 Bxc5 36. Kxc5 Rxb3 37. a4 a5 38. Kc4 Rb4+ 39. Kc3 Rxa4 40. Kb3 Rb4+ 41. Kc3 Rb7 42. Ra2 Ra7 43. Kc4 Kg6 44. Kb5 a4 45. Kb6 Ra8 46. Kb7 Ra5 47. Kb6 Rg5 48. g4 Rd5 49. Rxa4 Kg5 50. Ra7 Rd6+ 51. Kc5 Rf6 52. Kd4 Rxf3 53. Ra5+ Kh4 54. Rh5+ Kg3 55. g5 Rf5 56. h4 Ra5 57. Ke4 Kg4 58. gxh6 Kxh5 59. hxg7 Ra8 60. Kf5 Kh6 61. Kf6 Rg8 62. Kxf7 Rxg7+ 63. Kf6 Rg4 64. Kf5 Rxh4 65. Ke5 Kg6 66. Ke6 Re4+ 67. Kd5 Kf5 68. Kc5 Ke6 69. Kc6 Rc4+ 70. Kb5 Kd5 71. Kb6 Rc3 72. Kb7 Kd6 73. Kb8 Rb3+ 74. Kc8 Rb6 75. Kd8 Rb8# 0-1

[Event "Rio Claro IRT U2200 4th"]
[Site "Rio Claro"]
[Date "2016.02.21"]
[Round "4.7"]
[White "Dutra, Liliam Guedes"]
[Black "Sanchez, Ivan Roberto"]
[Result "1-0"]
[ECO "E21"]
[WhiteElo "1587"]
[BlackElo "1753"]
[PlyCount "59"]
[EventDate "2016.02.20"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 Ne4 5. Qc2 Nxc3 6. bxc3 Be7 7. e4 b6 8. Be2 Bb7 9. Bf4 d6 10. 0-0 Nd7 11. Bg3 0-0 12. Rab1 c5 13. d5 e5 14. Nd2 Nf6 15. f4 Qc7 16. fxe5 dxe5 17. Rf2 Bd6 18. Nf1 Rad8 19. Ne3 Bc8 20. Bh4 Be7 21. Nf5 Rfe8 22. Nxe7+ Rxe7 23. Bxf6 gxf6 24. Rxf6 Kg7 25. Qd2 Rd6 26. Qh6+ Kg8 27. Rxd6 Re8 28. Rf1 Be6 29. Rxe6 Qd8 30. Rxf7 1-0

[Event "Rio Claro IRT U2200 4th"]
[Site "Rio Claro"]
[Date "2016.02.21"]
[Round "5.7"]
[White "Sanchez, Ivan Roberto"]
[Black "Lorenzon de Carvalho, Tales Pietro"]
[Result "0-1"]
[ECO "B32"]
[WhiteElo "1753"]
[BlackElo "1680"]
[PlyCount "99"]
[EventDate "2016.02.20"]
[EventType "swiss"]
[EventRounds "5"]
[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 e5 5. Nf3 Bc5 6. Bb5 Qa5+ 7. Nc3 Bb4 8. 0-0 Bxc3 9. Bxc6 dxc6 10. bxc3 Qxc3 11. Qd6 f6 12. Ba3 Kf7 13. Qf8+ Kg6 14. Qe8+ Kh6 15. Bc1+ g5 16. h4 Kg7 17. Bd2 Qc5 18. hxg5 Qf8 19. gxf6+ Qxf6 20. Bg5 Qf7 21. Qxe5+ Nf6 22. Qxf6+ Qxf6 23. Bxf6+ Kxf6 24. Rfe1 Be6 25. Rab1 b5 26. Nd4 Bxa2 27. Rb2 Bc4 28. Nxc6 a5 29. e5+ Kf7 30. f4 Rhc8 31. Nd4 b4 32. e6+ Kf6 33. e7 Bf7 34. Nb5 Rc6 35. Nd4 Rc4 36. Nb5 Rc6 37. Kf2 h5 38. Nd4 Rc4 39. Ke3 Kxe7 40. Kd3+ Kf6 41. Nf3 Rxf4 42. Nd2 Rg4 43. g3 Rxg3+ 44. Re3 Rd8+ 45. Ke2 Rg2+ 46. Kf1 Rdxd2 47. Rf3+ Kg7 48. Rb1 Bc4+ 49. Ke1 Rde2+ 50. Kd1 0-1

