[Event "Nestor Roldan IRT"]
[Site "Arequipa"]
[Date "2003.08.10"]
[Round "9"]
[White "Condori Aranya, Edwin"]
[Black "Roberts, Eduardo"]
[Result "1/2-1/2"]
[ECO "A52"]
[WhiteElo "2225"]
[PlyCount "90"]
[EventDate "2003.08.06"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4 Nc6 5. Nf3 Bb4+ 6. Nbd2 Qe7 7. a3 Ngxe5 8. Nxe5 Nxe5 9. e3 Bxd2+ 10. Qxd2 d6 11. Be2 Bd7 12. Qc3 b6 13. 0-0 0-0 14. Bg3 Bc6 15. b4 Nd7 16. Rfc1 a5 17. Bf1 axb4 18. axb4 Rxa1 19. Rxa1 Ra8 20. Rxa8+ Bxa8 21. Qa1 Qe4 22. Qa7 Qb7 23. Qa4 Qc6 24. Qa1 Qb7 25. f3 Qb8 26. e4 Bb7 27. Qa4 Qc8 28. h3 f6 29. Qa2 Kh8 30. Qa4 Kg8 31. Qb5 Kh8 32. h4 Ba6 33. Qa4 Ne5 34. Qa2 Nd7 35. Be2 Bb7 36. h5 Qa8 37. Qb2 Qe8 38. Qa3 Qa8 39. Qc3 Qd8 40. Qa3 Qa8 41. Qb2 Qe8 42. Qa2 Qa8 43. Qb3 Qe8 44. Qa4 Qc8 45. Bf4 Ne5 1/2-1/2

[Event "Nestor Roldan IRT"]
[Site "Arequipa"]
[Date "2003.08.09"]
[Round "8"]
[White "Roberts, Eduardo"]
[Black "Aramayo Quiguallo, Jaime"]
[Result "0-1"]
[ECO "E81"]
[BlackElo "2149"]
[PlyCount "58"]
[EventDate "2003.08.06"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 c6 7. Nge2 a6 8. a4 a5 9. Qd2 Na6 10. g4 e5 11. d5 Nc5 12. Ra3 Bxg4 13. fxg4 Nfxe4 14. Nxe4 Nxe4 15. Qd1 f5 16. g5 Nxg5 17. Bxg5 Qxg5 18. Rg3 Qh4 19. Nc3 cxd5 20. Qxd5+ Kh8 21. Kd1 e4 22. Rg2 Rae8 23. Rhg1 Re5 24. Qxb7 Bh6 25. Nd5 f4 26. Qb6 f3 27. Rc2 e3 28. Nc3 Rc5 29. Qb7 Qd4+ 0-1

[Event "Nestor Roldan IRT"]
[Site "Arequipa"]
[Date "2003.08.09"]
[Round "7"]
[White "Roberts, Eduardo"]
[Black "Quinones, Cesar Luis"]
[Result "0-1"]
[ECO "A57"]
[BlackElo "2149"]
[PlyCount "68"]
[EventDate "2003.08.06"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. e3 axb5 6. Bxb5 Qa5+ 7. Nc3 Bb7 8. Bc4 e6 9. Bd2 Qb6 10. e4 Ba6 11. b3 exd5 12. Nxd5 Nxd5 13. exd5 Be7 14. Nf3 0-0 15. 0-0 Bf6 16. Rb1 Bxc4 17. bxc4 Qa6 18. Qb3 Qxa2 19. Qxa2 Rxa2 20. Bf4 Na6 21. Bd6 Rc8 22. Ne5 Bxe5 23. Bxe5 Nb4 24. Bd6 h6 25. f3 Ra6 26. Bg3 Re8 27. Ra1 Rea8 28. Rxa6 Rxa6 29. h3 d6 30. Rb1 Kf8 31. Be1 Rb6 32. Kh2 Nxd5 33. Rd1 Ne3 34. Ra1 Rb2 0-1

[Event "Nestor Roldan IRT"]
[Site "Arequipa"]
[Date "2003.08.08"]
[Round "4"]
[White "Lazo, Guillermo"]
[Black "Roberts, Eduardo"]
[Result "1-0"]
[ECO "B02"]
[PlyCount "43"]
[EventDate "2003.08.06"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. Nc3 Nxc3 4. bxc3 d6 5. f4 dxe5 6. fxe5 e6 7. Nf3 Be7 8. d4 b6 9. Bd3 Bb7 10. 0-0 0-0 11. Be3 Nd7 12. Qe1 f6 13. Qh4 f5 14. Qh3 Bxf3 15. Qxf3 Re8 16. Qc6 Nf8 17. Bc4 Bg5 18. Rae1 Bxe3+ 19. Rxe3 Kh8 20. Bb3 Qd7 21. Ba4 Rad8 22. Qc4 1-0

[Event "Nestor Roldan IRT"]
[Site "Arequipa"]
[Date "2003.08.08"]
[Round "5"]
[White "Roberts, Eduardo"]
[Black "Alejo, Gilbert"]
[Result "0-1"]
[ECO "D80"]
[BlackElo "2000"]
[PlyCount "36"]
[EventDate "2003.08.06"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bg5 Ne4 5. Nxe4 dxe4 6. e3 c6 7. Ne2 Qa5+ 8. Qd2 Qxg5 9. Nc3 Bf5 10. d5 Bg7 11. d6 0-0 12. 0-0-0 exd6 13. Qxd6 Nd7 14. Nxe4 Bxe4 15. Qxd7 Rad8 16. Qxb7 Rb8 17. Qd7 Bxb2+ 18. Kd2 Rfd8 0-1

[Event "Nestor Roldan IRT"]
[Site "Arequipa"]
[Date "2003.08.08"]
[Round "6"]
[White "Soto, Oscar"]
[Black "Roberts, Eduardo"]
[Result "1-0"]
[ECO "B44"]
[PlyCount "99"]
[EventDate "2003.08.06"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bc4 e6 4. d4 cxd4 5. Nxd4 d5 6. Nxc6 bxc6 7. exd5 exd5 8. Be2 Nf6 9. 0-0 Bd6 10. Bg5 h6 11. Be3 0-0 12. Nd2 Qc7 13. g3 c5 14. c3 Be5 15. Nf3 Bd6 16. Re1 Re8 17. Nh4 Bd7 18. Qd2 Bf8 19. Rad1 Be6 20. a4 Ne4 21. Qc2 Be7 22. Ng2 Rad8 23. Nf4 Nf6 24. Nxe6 fxe6 25. Qg6 Bf8 26. Bxh6 Qf7 27. Qxf7+ Kxf7 28. Bg5 Rb8 29. Bxf6 gxf6 30. Bh5+ Ke7 31. Bxe8 Rxe8 32. Rxd5 Kf7 33. Rd7+ Kg6 34. Rxa7 e5 35. Rb7 Rd8 36. b4 cxb4 37. cxb4 Rd4 38. Rb1 Kf5 39. a5 Rd3 40. b5 Rd2 41. a6 Bc5 42. Rf1 Ra2 43. h4 Kg4 44. Kg2 e4 45. Rg7+ Kf5 46. Kh3 Bd6 47. a7 Bc5 48. h5 Bxa7 49. h6 Bd4 50. h7 1-0

[Event "Nestor Roldan IRT"]
[Site "Arequipa"]
[Date "2003.08.07"]
[Round "2"]
[White "Meruvia Meruvia, Juan Francisco"]
[Black "Roberts, Eduardo"]
[Result "1-0"]
[ECO "A56"]
[PlyCount "146"]
[EventDate "2003.08.06"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. d5 d6 4. Nc3 c5 5. e4 Bg4 6. Qb3 b6 7. Bd3 Be7 8. f3 Bc8 9. Nge2 0-0 10. 0-0 Nbd7 11. Be3 a6 12. Qc2 Rb8 13. a4 Ne8 14. Qd2 Nc7 15. g4 f6 16. Ng3 Re8 17. Kg2 Nf8 18. h4 Bd7 19. h5 Qc8 20. Qe2 Rd8 21. Nf5 Bxf5 22. gxf5 Nd7 23. Rh1 Kh8 24. Rag1 Rg8 25. Kf1 Bf8 26. Rg4 Qe8 27. Qg2 Qf7 28. Rg1 Be7 29. Bc1 Qf8 30. Qe2 Qf7 31. Rh1 Bf8 32. Nd1 Be7 33. Ne3 Nf8 34. Ng2 h6 35. Nh4 Kh7 36. Ng6 Nd7 37. Kf2 Rgc8 38. Rhg1 Rg8 39. Kf1 Bf8 40. Be3 Be7 41. R4g2 a5 42. Qd2 Na6 43. Ke2 Nc7 44. Kd1 Na6 45. Rg3 Nb4 46. Bf1 Na6 47. Kc1 Nc7 48. Qg2 Na6 49. Be2 Nc7 50. Qh1 Na6 51. R1g2 Nc7 52. Kb1 Na6 53. Qc1 Nc7 54. Qd2 Rbe8 55. Rg1 Rb8 56. Qe1 Rbe8 57. R1g2 Rb8 58. Qg1 Rbe8 59. Nh4 Rb8 60. Rg6 Rbe8 61. Qc1 Qf8 62. Bxh6 gxh6 63. Rxg8 Qxg8 64. Rxg8 Rxg8 65. Ng6 Rg7 66. Bf1 Na6 67. Bh3 Nb4 68. Qe3 Na6 69. Bg4 Nb4 70. Nh4 Na6 71. Ng2 Nb4 72. Ne1 Na6 73. Nd3 Nc7 1-0

[Event "Nestor Roldan IRT"]
[Site "Arequipa"]
[Date "2003.08.07"]
[Round "3"]
[White "Roberts, Eduardo"]
[Black "Navarro, Javier"]
[Result "0-1"]
[ECO "B25"]
[PlyCount "84"]
[EventDate "2003.08.06"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nge2 d6 6. d3 Nf6 7. Bg5 h6 8. Bd2 Bd7 9. h3 a6 10. a4 Rb8 11. Qc1 Qc8 12. f4 b5 13. axb5 axb5 14. Nd1 0-0 15. Nf2 e5 16. 0-0 Kh7 17. Kh2 Nh5 18. Bf3 Nf6 19. c3 Ra8 20. Rxa8 Qxa8 21. Nd1 Na5 22. Be3 c4 23. Qc2 Bc6 24. Nf2 cxd3 25. Qxd3 Nc4 26. b3 Nxe3 27. Qxe3 exf4 28. Qxf4 Re8 29. Qxd6 Nxe4 30. Nxe4 Bxe4 31. Bxe4 Qxe4 32. Nd4 f5 33. Rf2 Qe1 34. Rc2 Qd1 35. Rg2 Re1 36. Rf2 h5 37. Nxb5 Qxb3 38. Qd2 Rb1 39. Nd4 Qc4 40. Qc2 Ra1 41. Nxf5 Qd5 42. g4 Be5+ 0-1

[Event "Nestor Roldan IRT"]
[Site "Arequipa"]
[Date "2003.08.06"]
[Round "1"]
[White "Roberts, Eduardo"]
[Black "Elias Valenzuela, Arturo"]
[Result "0-1"]
[ECO "B04"]
[BlackElo "2122"]
[PlyCount "72"]
[EventDate "2003.08.06"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Nc3 g6 7. Nf3 Bg7 8. Be2 0-0 9. 0-0 Bg4 10. Be3 Nc6 11. b3 d5 12. c5 Nd7 13. Rc1 Nf6 14. h3 Be6 15. Bd3 Qc8 16. Ng5 Bf5 17. Bxf5 Qxf5 18. Nf3 Rad8 19. Ne2 Ne4 20. Nd2 e5 21. Nxe4 dxe4 22. d5 Nd4 23. d6 Qf6 24. Ng3 Qh4 25. Ne2 Nxe2+ 26. Qxe2 f5 27. f3 exf3 28. Qxf3 e4 29. Qf2 Qxf2+ 30. Rxf2 Kf7 31. Rfc2 Ke6 32. c6 bxc6 33. Rxc6 Rd7 34. Rc7 Be5 35. Rxa7 Rxa7 36. Bxa7 Ra8 0-1

[Event "PER-ch U20"]
[Site "Peru"]
[Date "1999.??.??"]
[Round "5"]
[White "Esplana, Christian"]
[Black "Roberts, Eduardo"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "2211"]
[PlyCount "37"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "PER"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 c4 7. Qg4 g6 8. h4 Qa5 9. Rh3 Ne7 10. h5 Nbc6 11. Bd2 Bd7 12. Nf3 0-0-0 13. Ng5 Rdf8 14. hxg6 Nxg6 15. Nxh7 Rfg8 16. Qf3 Rg7 17. Nf6 Rxh3 18. Qxh3 Kc7 19. Qh6 1-0

[Event "PER-ch U20"]
[Site "Peru"]
[Date "1999.??.??"]
[Round "2"]
[White "Fiestas, Alex"]
[Black "Roberts, Eduardo"]
[Result "0-1"]
[ECO "D58"]
[PlyCount "60"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "PER"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3 Nbd7 6. e3 0-0 7. Bd3 h6 8. Bh4 b6 9. 0-0 Bb7 10. Bg3 Nh5 11. cxd5 Nxg3 12. fxg3 exd5 13. Qc2 c5 14. b3 Rc8 15. Rac1 Nf6 16. h3 a6 17. Bf5 Rc7 18. Ne2 Bd6 19. Qb2 Re8 20. Qd2 Rce7 21. Kf2 Bc8 22. Bxc8 Ne4+ 23. Ke1 Nxd2 24. Nxd2 Qxc8 25. dxc5 bxc5 26. Rf3 Rxe3 27. Rxe3 Rxe3 28. Kf2 Qe6 29. Nf4 Bxf4 30. gxf4 Re2+ 0-1

[Event "PER-ch U20"]
[Site "Peru"]
[Date "1999.??.??"]
[Round "4"]
[White "Pacheco, Silvana"]
[Black "Roberts, Eduardo"]
[Result "0-1"]
[ECO "A52"]
[WhiteElo "2125"]
[PlyCount "120"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "PER"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Nc6 5. b3 Bb4+ 6. Bd2 Bxd2+ 7. Nbxd2 Ngxe5 8. e3 0-0 9. Be2 d6 10. 0-0 Re8 11. Nxe5 dxe5 12. Qc2 Qe7 13. a3 g6 14. Rfd1 Be6 15. Nf3 Rad8 16. b4 f6 17. Rxd8 Rxd8 18. Rd1 Rxd1+ 19. Qxd1 a5 20. b5 Nb8 21. Qd3 Nd7 22. Nd2 Nc5 23. Qc3 b6 24. Bf3 Qd6 25. h3 Na4 26. Qc1 f5 27. Bd1 Nc5 28. Be2 Kf7 29. Nf3 e4 30. Ng5+ Kg8 31. Nxe6 Qxe6 32. Qd2 Qd6 33. Qxd6 cxd6 34. Kf1 Kf7 35. Ke1 Ke6 36. Kd2 g5 37. Kc3 Ke5 38. g3 h6 39. Kc2 Ne6 40. f4+ exf3 41. Bxf3 Nc5 42. g4 f4 43. Kd2 fxe3+ 44. Kxe3 Ne6 45. Bg2 Nf4 46. Bf1 d5 47. cxd5 Kxd5 48. h4 Ke5 49. hxg5 hxg5 50. Bc4 Ng2+ 51. Kf2 Kd4 52. Be2 Ne3 53. a4 Nd5 54. Bd1 Ke4 55. Kg3 Ke3 56. Bb3 Nc3 57. Kg2 Kf4 58. Kh3 Ne4 59. Be6 Nc5 60. Bf5 Nxa4 0-1

[Event "PER-ch U16"]
[Site "Peru"]
[Date "1999.??.??"]
[Round "5"]
[White "Perez Guevara, Ciro"]
[Black "Roberts, Eduardo"]
[Result "1/2-1/2"]
[ECO "C01"]
[PlyCount "63"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. d4 Bd6 5. Bd3 Bg4 6. 0-0 Nf6 7. Re1+ Be7 8. h3 Bh5 9. Be3 Nbd7 10. Nbd2 c6 11. c3 0-0 12. Qc2 Re8 13. Bf4 Bg6 14. Bg5 Qb6 15. Bxg6 hxg6 16. Ne5 Nxe5 17. dxe5 Bc5 18. Re2 Nd7 19. Nb3 Nf8 20. Rae1 Ne6 21. Bc1 a5 22. Qd3 Rad8 23. Nxc5 Nxc5 24. Qd4 Qb5 25. Bg5 Rd7 26. Qg4 Re6 27. Rd1 Qa6 28. Rdd2 Qa8 29. Qd4 Na6 30. Qa4 Nc5 31. Qd4 Na6 32. Qa4 1/2-1/2

[Event "PER-ch U20"]
[Site "Peru"]
[Date "1999.??.??"]
[Round "1"]
[White "Roberts, Eduardo"]
[Black "Calle Soto, Miryam"]
[Result "1/2-1/2"]
[ECO "D85"]
[BlackElo "2125"]
[PlyCount "88"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "PER"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Be3 Bg4 9. Bb5+ Nd7 10. 0-0 0-0 11. Bxd7 Qxd7 12. Qd2 Rfd8 13. Rfd1 Bxf3 14. gxf3 Qh3 15. Qe2 e6 16. Rab1 cxd4 17. cxd4 Rd7 18. Rb3 b6 19. Rbd3 Rc8 20. f4 Qh4 21. e5 Bh6 22. Qf3 Rd5 23. Rc1 Rxc1+ 24. Bxc1 Qd8 25. Qd1 Qc7 26. Be3 Qc4 27. Qb3 Qxb3 28. Rxb3 Bf8 29. Kf1 Ra5 30. Rb2 Ra4 31. Ke2 Be7 32. Kd2 Kf8 33. Rc2 Bd8 34. Kc3 b5 35. Kb3 Be7 36. Rc8+ Kg7 37. Rb8 Ra3+ 38. Kb2 b4 39. Re8 Bf8 40. Rb8 a5 41. Rd8 Rd3 42. Kc2 Ra3 43. Kb2 Rd3 44. Kc2 Ra3 1/2-1/2

[Event "PER-ch U16"]
[Site "Peru"]
[Date "1999.??.??"]
[Round "2"]
[White "Roberts, Eduardo"]
[Black "Deza, M."]
[Result "0-1"]
[ECO "E12"]
[PlyCount "102"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3 Nbd7 6. e3 0-0 7. Bd3 b6 8. 0-0 Bb7 9. Rc1 c5 10. Re1 Rc8 11. cxd5 exd5 12. Bf5 Re8 13. Qa4 Ra8 14. Red1 c4 15. Re1 a6 16. Qc2 Nf8 17. Ne5 Ng6 18. Bxg6 hxg6 19. Qe2 Bd6 20. f4 b5 21. a3 b4 22. axb4 Bxb4 23. Qc2 Re6 24. Re2 Bxc3 25. bxc3 Qe8 26. Rb1 Bc6 27. Nxc6 Qxc6 28. Bxf6 Rxf6 29. g3 Re8 30. Qa2 Rfe6 31. Kf2 Qd7 32. Qa5 Qe7 33. Rbe1 g5 34. Qxd5 gxf4 35. gxf4 Qh4+ 36. Kg1 Rg6+ 37. Kh1 Qh3 38. Qb7 Ree6 39. Qa8+ Kh7 40. Qd5 Rg4 41. f5 Rd6 42. Qb7 Rd7 43. Qb2 Rd6 44. Rf2 Rg3 45. Qd2 Rf3 46. Qe2 Rxf5 47. Rg2 Re6 48. Rg3 Qh6 49. Qxc4 Rf2 50. Qd3+ Kg8 51. Re2 Qxh2# 0-1

[Event "PER-ch U16"]
[Site "Peru"]
[Date "1999.??.??"]
[Round "6"]
[White "Roberts, Eduardo"]
[Black "Gonzales, D."]
[Result "1-0"]
[ECO "E21"]
[PlyCount "45"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. Bg5 0-0 5. Nf3 h6 6. Bh4 d5 7. e3 Nbd7 8. cxd5 exd5 9. Bd3 c6 10. Qb3 Bxc3+ 11. bxc3 Re8 12. 0-0 Qc7 13. Bg3 Qb6 14. Qc2 Ne4 15. Bxe4 dxe4 16. Nd2 f5 17. Nc4 Qd8 18. Qb3 Re6 19. Nd6 Qf6 20. Ne8 Qe7 21. Nc7 Nb6 22. Nxa8 Nxa8 23. c4 1-0

[Event "PER-ch U20"]
[Site "Peru"]
[Date "1999.??.??"]
[Round "6"]
[White "Roberts, Eduardo"]
[Black "Murillo, Helmuth"]
[Result "0-1"]
[ECO "E81"]
[PlyCount "154"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "PER"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Bg5 Nbd7 7. Qd2 c6 8. Nge2 a6 9. a4 Qa5 10. Nb1 Qxd2+ 11. Nxd2 e5 12. Bxf6 Bxf6 13. d5 cxd5 14. cxd5 Be7 15. Nc3 f5 16. Bc4 fxe4 17. fxe4 Bg5 18. Nf3 Bh6 19. 0-0 Nf6 20. Bd3 Bd7 21. a5 Rac8 22. Rfe1 Bg4 23. Be2 Bxf3 24. Bxf3 Bd2 25. Reb1 Rf7 26. Ra3 Rfc7 27. Rb3 h5 28. Kf1 g5 29. g3 Bxc3 30. bxc3 Rxc3 31. Bg2 Rxb3 32. Rxb3 Rc7 33. h3 Kf7 34. Bf3 Ke7 35. Ke1 Kd8 36. Rb6 Rd7 37. Rb2 Rc7 38. Rb6 Kd7 39. Kd2 g4 40. Bg2 Ne8 41. Bf1 Kc8 42. hxg4 hxg4 43. Be2 Rg7 44. Ke3 Kc7 45. Rb1 Nf6 46. Rc1+ Kb8 47. Rh1 Nd7 48. Rh4 Nc5 49. Rxg4 Rxg4 50. Bxg4 Nb3 51. Be6 Kc7 52. g4 Kd8 53. g5 Ke7 54. Bc8 Nxa5 55. Kd3 Nb3 56. Kc4 Nc5 57. Bf5 a5 58. Kb5 a4 59. Kb4 Kf7 60. Ka3 b5 61. Kb4 Nd3+ 62. Ka3 Nf2 63. Kb4 Nh1 64. Bd7 Ng3 65. Bxb5 Nxe4 66. Bxa4 Nxg5 67. Kc4 Kf6 68. Bd7 Ne4 69. Bc8 Kg5 70. Kd3 Kf4 71. Kc4 Nc5 72. Bh3 Ke3 73. Bg2 e4 74. Kb5 Kd4 75. Kc6 Ke5 76. Bf1 Nd3 77. Be2 Nf4 0-1

[Event "PER-ch U20"]
[Site "Peru"]
[Date "1999.??.??"]
[Round "3"]
[White "Roberts, Eduardo"]
[Black "Quiroz, Christian"]
[Result "1-0"]
[ECO "D52"]
[PlyCount "82"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "PER"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. cxd5 Nxd5 8. Qc2 Bb4 9. Rc1 Qxa2 10. Bd3 Bxc3+ 11. bxc3 Qxc2 12. Rxc2 f6 13. Bh4 a5 14. Bg3 b5 15. e4 N5b6 16. Bd6 Bb7 17. 0-0 Kf7 18. Re1 h6 19. Rce2 Nc8 20. Ba3 e5 21. Bb1 Re8 22. Nh4 Ba6 23. Re3 Kg8 24. Rg3 Kh7 25. Nf5 g6 26. Nh4 Rg8 27. Ba2 Rg7 28. Be6 Ncb6 29. Nxg6 Rxg6 30. Bf5 Rag8 31. dxe5 Nxe5 32. f4 Nec4 33. Be7 Bc8 34. Bxg6+ Rxg6 35. Rd3 Bd7 36. f5 Rg7 37. Bxf6 Rf7 38. Bd4 a4 39. g4 Nb2 40. Rh3 N6c4 41. g5 Bxf5 1-0

[Event "Pan American-ch U16"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "6"]
[White "Abreu, Diego R"]
[Black "Roberts, Eduardo"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "72"]
[EventDate "1998.05.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. Nf3 Nc6 4. d3 Bg4 5. Be2 e6 6. Be3 Nf6 7. 0-0 Be7 8. d4 cxd4 9. Nxd4 Bxe2 10. Qxe2 0-0 11. Rfd1 a6 12. a4 Qc7 13. Nxc6 bxc6 14. Bf4 e5 15. Bg3 Rab8 16. b3 Qa5 17. Qf3 Rb4 18. Re1 Rfb8 19. Bh4 Qc5 20. Bxf6 Bxf6 21. Rad1 Be7 22. Qe3 Qxe3 23. Rxe3 Rd4 24. Red3 Rxd3 25. Rxd3 f6 26. h3 Kf7 27. g4 Ke6 28. Ne2 Rb4 29. Nc3 Rb8 30. Ne2 d5 31. exd5+ cxd5 32. Re3 Kf7 33. f4 Bc5 34. Kf2 Bxe3+ 35. Kxe3 Rb4 36. fxe5 fxe5 0-1

[Event "Pan American-ch U16"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "5"]
[White "Claverie, Raul Ricardo"]
[Black "Roberts, Eduardo"]
[Result "1-0"]
[ECO "B02"]
[PlyCount "85"]
[EventDate "1998.05.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. b3 e6 5. Bb2 Be7 6. f4 0-0 7. Nf3 f6 8. d4 d6 9. exd6 cxd6 10. g3 Re8 11. Bg2 N8d7 12. 0-0 Nf8 13. Re1 Bd7 14. a4 d5 15. a5 Nc8 16. c5 a6 17. Nc3 f5 18. Ne5 Bf6 19. b4 Bxe5 20. Rxe5 Ng6 21. Re3 Nce7 22. Na4 Nc8 23. Nc3 Nce7 24. h4 Kh8 25. Na4 Nc8 26. Nb6 Nxb6 27. axb6 Rc8 28. Kf2 Nxh4 29. gxh4 Qxh4+ 30. Kg1 Qxf4 31. Raa3 Qg4 32. Qxg4 fxg4 33. Re5 Rf8 34. Rg3 Rf4 35. Rg5 Rcf8 36. R5xg4 Rxg4 37. Rxg4 h6 38. Rg3 g5 39. Rf3 Rxf3 40. Bxf3 Kg7 41. Be2 Kf6 42. Bxa6 Kf5 43. Bxb7 1-0

[Event "Pan American-ch U16"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "2"]
[White "Machado, Rafael Pereira"]
[Black "Roberts, Eduardo"]
[Result "1/2-1/2"]
[ECO "B03"]
[PlyCount "112"]
[EventDate "1998.05.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Nc3 Bf5 7. Nf3 Be7 8. Be2 0-0 9. 0-0 Bf6 10. Bd3 Bg4 11. Be4 c6 12. Qd3 h6 13. Rd1 Na6 14. a3 Nc7 15. c5 dxc5 16. dxc5 Bxc3 17. cxb6 Nb5 18. bxc3 Nxc3 19. Qxd8 Rfxd8 20. Rxd8+ Rxd8 21. Bc2 Bxf3 22. gxf3 Ne2+ 23. Kf1 Nxc1 24. Rxc1 axb6 25. Rd1 Rxd1+ 26. Bxd1 f6 27. Bb3+ Kf8 28. Be6 b5 29. Bc8 b6 30. Bd7 b4 31. axb4 c5 32. bxc5 bxc5 33. Be6 Ke7 34. Bc4 Kd6 35. Ke2 Ke5 36. Ke3 Kf5 37. Bd5 Kg5 38. Ke4 Kh4 39. Kf5 Kh3 40. Kg6 Kxh2 41. f4 Kh3 42. f5 Kg4 43. Bc4 Kf4 44. Bd3 Ke5 45. Kxg7 h5 46. f4+ Kd4 47. Bf1 c4 48. Bxc4 Kxc4 49. Kxf6 h4 50. Ke7 h3 51. f6 h2 52. f7 h1Q 53. f8Q Qe4+ 54. Kd7 Qb7+ 55. Ke6 Qe4+ 56. Kd6 Qd5+ 1/2-1/2

[Event "Pan American-ch U14"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "2"]
[White "Roberts, Eduardo"]
[Black "Dal Piva, Giovani"]
[Result "1-0"]
[ECO "C29"]
[PlyCount "67"]
[EventDate "1998.05.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. d3 Qh4+ 6. g3 Nxg3 7. Nf3 Qh5 8. Nxd5 Na6 9. Nf4 Qh6 10. Ne2 Qc6 11. Nxg3 Bg4 12. Bg2 0-0-0 13. c3 Qe6 14. 0-0 h6 15. Kh1 Nc5 16. d4 Nd7 17. Qb3 Qxb3 18. axb3 a6 19. Nd2 f6 20. h3 Be6 21. d5 Bg8 22. e6 Nb6 23. Nf5 Re8 24. Nc4 Nxc4 25. bxc4 g6 26. Nh4 g5 27. Ng6 Rh7 28. Nxf8 Rxf8 29. b3 f5 30. Ba3 Rf6 31. Be4 Rg7 32. Rxf5 Rxf5 33. Bxf5 Kd8 34. Bf8 1-0

[Event "Pan American-ch U16"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "4"]
[White "Roberts, Eduardo"]
[Black "Lebensohn, Lisandro"]
[Result "0-1"]
[ECO "E85"]
[PlyCount "84"]
[EventDate "1998.05.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Nd5 Nxd5 10. cxd5 c6 11. Bc4 b5 12. Bb3 Bb7 13. 0-0-0 cxd5 14. Bxd5 Bxd5 15. exd5 Na6 16. Ne2 Nc7 17. d6 Ne8 18. d7 Nf6 19. Nc3 b4 20. Nd5 Nxd7 21. Nxb4 a5 22. Nd5 f5 23. Bg5 Rdc8+ 24. Kb1 Kf7 25. Nc3 Nb6 26. Nd5 Nc4 27. Ne3 Na3+ 28. Ka1 f4 29. Nd5 Nc2+ 30. Kb1 Rab8 31. Rd2 Na3+ 32. Ka1 Nc2+ 33. Kb1 Na3+ 34. Ka1 e4 35. Bf6 Nc4 36. Bxg7 Nxd2 37. Bc3 e3 38. Nxf4 a4 39. Re1 a3 40. Rxe3 axb2+ 41. Bxb2 Rc1+ 42. Bxc1 Rb1# 0-1

[Event "Pan American-ch U16"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "3"]
[White "Roberts, Eduardo"]
[Black "Payares Leon, Daniel Alfonso"]
[Result "1/2-1/2"]
[ECO "B33"]
[PlyCount "56"]
[EventDate "1998.05.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Nc6 7. a3 Be7 8. Be2 0-0 9. 0-0 d6 10. Bf3 Be6 11. Nd5 Bxd5 12. exd5 Nb8 13. Be3 Nbd7 14. Qe2 Rc8 15. g3 Qc7 16. Rac1 Rfe8 17. Rfd1 Nb6 18. Bxb6 Qxb6 19. Qe3 Qxe3 20. fxe3 e4 21. Be2 Rcd8 22. h3 Nd7 23. Na5 Rb8 24. Kf2 Kf8 25. Nc4 Red8 26. Na5 Bf6 27. Nc4 Be7 28. b4 Rdc8 1/2-1/2

[Event "Pan American-ch U16"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "1"]
[White "Roberts, Eduardo"]
[Black "Rissotti, Laureano"]
[Result "0-1"]
[ECO "C42"]
[PlyCount "66"]
[EventDate "1998.05.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 d6 4. d3 Be7 5. Be2 c6 6. 0-0 Nbd7 7. d4 0-0 8. dxe5 dxe5 9. a3 Qc7 10. Be3 Nc5 11. Bd3 Rd8 12. Qe2 a5 13. Rfd1 Bg4 14. h3 Bh5 15. g4 Nxd3 16. cxd3 Nxg4 17. hxg4 Bxg4 18. Nb1 Rd6 19. Nbd2 Rf6 20. Kf1 Qd7 21. Ke1 Qe6 22. Rdc1 h6 23. Kd1 Rxf3 24. Nxf3 Qf6 25. Kd2 Bxf3 26. Qf1 Rd8 27. Ke1 Qe6 28. Rc3 Qg4 29. Bb6 Rd7 30. Kd2 h5 31. Kc2 h4 32. Qg1 Qxg1 33. Rxg1 h3 0-1

