[Event "Pan American-ch Hybrid U14 31st"]
[Site "Tornelo INT"]
[Date "2021.09.04"]
[Round "2"]
[White "Barja Viveros, Matias Ariel"]
[Black "Lopez Escobar, Daniel Alejandro"]
[Result "1-0"]
[ECO "B84"]
[WhiteElo "1650"]
[BlackElo "1354"]
[PlyCount "85"]
[EventDate "2021.09.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nbd7 7. 0-0 e6 8. Be3 Be7 9. f3 Qc7 10. Qd2 b5 11. a3 Bb7 12. Rfd1 0-0 13. Kh1 Rfe8 14. Rac1 d5 15. exd5 Nxd5 16. Nxd5 Bxd5 17. Bf4 Qb7 18. Nf5 exf5 19. Qxd5 Qxd5 20. Rxd5 Nf6 21. Rxf5 Bxa3 22. bxa3 Rxe2 23. Re5 Re8 24. Rxe8+ Rxe8 25. Kg1 Nd5 26. Bd2 Ne3 27. Re1 f5 28. Rxe3 Rxe3 29. Bxe3 Kf7 30. Kf1 Ke6 31. Ke2 Kd5 32. Kd3 g6 33. c3 a5 34. Bd4 a4 35. h3 h5 36. f4 h4 37. Bf2 Ke6 38. Bxh4 Kd5 39. g4 fxg4 40. hxg4 Ke6 41. c4 b4 42. axb4 Kf7 43. Kc3 1-0

[Event "Pan American-ch Hybrid U14 31st"]
[Site "Tornelo INT"]
[Date "2021.09.04"]
[Round "8"]
[White "Barja Viveros, Matias Ariel"]
[Black "Montes Orozco, Miguel Angel"]
[Result "0-1"]
[ECO "C78"]
[WhiteElo "1650"]
[BlackElo "2003"]
[PlyCount "64"]
[EventDate "2021.09.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Bc5 7. d3 d6 8. h3 h6 9. Nc3 0-0 10. a3 Be6 11. Nd5 Ba7 12. c3 Nb8 13. Be3 Nbd7 14. Bxa7 Rxa7 15. Re1 c5 16. d4 Bxd5 17. exd5 exd4 18. cxd4 c4 19. Bc2 Nxd5 20. Nd2 N7f6 21. Ne4 Nxe4 22. Rxe4 Re7 23. Rg4 f5 24. Rg3 f4 25. Rg6 f3 26. g3 Qd7 27. Rg4 Qe6 28. Qd2 Qe2 29. Rd1 Qxd2 30. Rxd2 Re1+ 31. Kh2 Re2 32. Be4 Nf6 0-1

[Event "Pan American-ch Hybrid U14 31st"]
[Site "Tornelo INT"]
[Date "2021.09.04"]
[Round "4"]
[White "Barja Viveros, Matias Ariel"]
[Black "Sloan, Jed David"]
[Result "1/2-1/2"]
[ECO "C00"]
[WhiteElo "1650"]
[BlackElo "1806"]
[PlyCount "63"]
[EventDate "2021.09.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d3 Nc6 4. Nbd2 d5 5. g3 Nf6 6. Bg2 Be7 7. 0-0 b6 8. e5 Nd7 9. Re1 Bb7 10. Nf1 b5 11. a3 Nb6 12. h4 h6 13. Ne3 a5 14. Bd2 Qc7 15. Rc1 b4 16. c4 dxc4 17. Nxc4 Nxc4 18. dxc4 0-0 19. a4 Rfd8 20. Qc2 Rd7 21. Rcd1 Rad8 22. Bf4 Nd4 23. Nxd4 Rxd4 24. Rxd4 Rxd4 25. Be3 Rg4 26. Bh3 Qc6 27. Kh2 Re4 28. Rg1 Qa6 29. Bg2 Rg4 30. b3 Bxg2 31. Rxg2 Qc6 32. f4 1/2-1/2

[Event "Pan American-ch Hybrid U14 31st"]
[Site "Tornelo INT"]
[Date "2021.09.04"]
[Round "6"]
[White "Barja Viveros, Matias Ariel"]
[Black "Ticona Rocabado, Licael Roderick"]
[Result "1-0"]
[ECO "B19"]
[WhiteElo "1650"]
[BlackElo "1989"]
[PlyCount "85"]
[EventDate "2021.09.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. Bd3 Bxd3 9. Qxd3 Ngf6 10. 0-0 e6 11. Re1 Be7 12. Bd2 Qc7 13. c4 0-0 14. Nf5 Rfe8 15. Nxe7+ Rxe7 16. Bc3 Rd8 17. Rad1 b6 18. Qc2 Qf4 19. b3 Ree8 20. Qd2 Qg4 21. Qe3 Qg6 22. Qd3 Qh5 23. Qe3 Nh7 24. d5 exd5 25. Qxe8+ Rxe8 26. Rxe8+ Nhf8 27. cxd5 f6 28. Rd8 cxd5 29. Bb4 Kf7 30. Bxf8 Nxf8 31. R8xd5 Qg6 32. h5 Qc2 33. R1d2 Qb1+ 34. Kh2 Ne6 35. g3 Qe4 36. Nh4 Ng5 37. Rd7+ Kg8 38. Rd8+ Kh7 39. Ng6 Nf3+ 40. Kh3 Qf5+ 41. g4 Ng5+ 42. Kh4 Nf3+ 43. Kg3 1-0

[Event "Pan American-ch Hybrid U14 31st"]
[Site "Tornelo INT"]
[Date "2021.09.04"]
[Round "3"]
[White "De Albuquerque, Ian Telek C"]
[Black "Barja Viveros, Matias Ariel"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "1923"]
[BlackElo "1650"]
[PlyCount "100"]
[EventDate "2021.09.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. Qc2 h6 7. Bh4 Nc6 8. e3 a6 9. a3 Be6 10. Bd3 g5 11. Bg3 Nh5 12. Nge2 Nxg3 13. Nxg3 Na5 14. Na4 b6 15. Nh5 0-0 16. Ng3 Bf6 17. 0-0 Nc4 18. Rfc1 Ra7 19. b3 Nd6 20. Nf5 Bxf5 21. Bxf5 c5 22. dxc5 bxc5 23. Qxc5 Re7 24. Bd3 Bxa1 25. Rxa1 Ne4 26. Qd4 Qd6 27. b4 Qc6 28. Nb6 Rd8 29. a4 Nd2 30. b5 Qd6 31. Bc2 axb5 32. axb5 Qe5 33. Qxe5 Rxe5 34. Rd1 Re6 35. Rxd2 Rxb6 36. Bd3 Kg7 37. g3 d4 38. Bc4 Rbd6 39. e4 d3 40. Kf1 Rd4 41. Bd5 Rb8 42. Bc6 Kf6 43. f3 Rbd8 44. Kf2 Rb4 45. Ke3 Rb3 46. h3 Ke7 47. Kf2 Kf6 48. Ke3 Ke5 49. Bd5 Rxb5 50. Bxf7 Ra5 1/2-1/2

[Event "Pan American-ch Hybrid U14 31st"]
[Site "Tornelo INT"]
[Date "2021.09.04"]
[Round "9"]
[White "Machado, Alessandro Mathias"]
[Black "Barja Viveros, Matias Ariel"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1500"]
[BlackElo "1650"]
[PlyCount "90"]
[EventDate "2021.09.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. f4 Nf6 7. Nf3 b6 8. 0-0 0-0 9. Qe1 e6 10. Bd2 Qc7 11. Rd1 Nh5 12. e5 f5 13. Ne2 Rd8 14. Ng3 Nxg3 15. Qxg3 Ba6 16. b3 b5 17. h4 c4 18. dxc4 bxc4 19. Rfe1 Rd5 20. Bb4 Qb6+ 21. Kh2 Qxb4 22. Rxd5 cxd5 23. h5 cxb3 24. hxg6 h6 25. Rb1 b2 26. Ne1 Rc8 27. Qf2 Qb6 28. Qd2 Bc4 29. c3 Rb8 30. Nd3 Bxd3 31. Qxd3 Qf2 32. Qa6 Qxf4+ 33. g3 Qxe5 34. Qxa7 Qe2+ 35. Kg1 Rf8 36. Qb6 Bxc3 37. a4 Qd3 38. Qxe6+ Kh8 39. g7+ Bxg7 40. Qe1 Qd4+ 41. Kh2 Rc8 42. Qe2 Qe4 43. Qa6 Rc2+ 44. Qe2 Qxe2+ 45. Kg1 Qg2# 0-1

[Event "Pan American-ch Hybrid U14 31st"]
[Site "Tornelo INT"]
[Date "2021.09.04"]
[Round "1"]
[White "Mano, Syon"]
[Black "Barja Viveros, Matias Ariel"]
[Result "0-1"]
[ECO "D79"]
[WhiteElo "1198"]
[BlackElo "1650"]
[PlyCount "80"]
[EventDate "2021.09.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 0-0 5. Nf3 c6 6. 0-0 d5 7. cxd5 cxd5 8. d4 Nc6 9. e3 a6 10. a3 b5 11. b4 Bb7 12. Qd3 Rc8 13. Bb2 Re8 14. e4 Nxb4 15. axb4 dxe4 16. Qe3 exf3 17. Bxf3 Qb6 18. Rfd1 e6 19. Ne4 Nxe4 20. Bxe4 Bxe4 21. Qxe4 Rc4 22. Rd2 Rxb4 23. Qe3 Rxb2 24. Rxb2 Qxd4 25. Qxd4 Bxd4 26. Rba2 Bxa1 27. Rxa1 Ra8 28. Kf1 Kg7 29. Ke2 Kf6 30. Ke3 a5 31. Kd4 b4 32. Kc4 Kf5 33. Kb5 Kg4 34. Ka4 Kf3 35. Rd1 Ra7 36. Rd8 Kxf2 37. g4 Kf3 38. h3 Kg3 39. Rh8 Kxh3 40. Rxh7+ Kxg4 0-1

[Event "Pan American-ch Hybrid U14 31st"]
[Site "Tornelo INT"]
[Date "2021.09.04"]
[Round "5"]
[White "Nascimento, Nicolas Daniel Trin"]
[Black "Barja Viveros, Matias Ariel"]
[Result "0-1"]
[ECO "E24"]
[BlackElo "1650"]
[PlyCount "112"]
[EventDate "2021.09.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 d5 6. cxd5 exd5 7. Bf4 Bf5 8. e3 0-0 9. Nf3 Ne4 10. c4 c6 11. cxd5 Qa5+ 12. Nd2 Nc3 13. Qb3 Nxd5 14. Bg3 Nd7 15. Be2 N7f6 16. Bd6 Ne4 17. Bb4 Nxb4 18. Qxb4 Qxb4 19. axb4 Nc3 20. Nb3 Nd5 21. b5 cxb5 22. Bxb5 Rfc8 23. Nc5 Nb4 24. Kd2 b6 25. Bd7 Bxd7 26. Nxd7 Rc2+ 27. Kd1 Rxf2 28. Nxb6 Re8 29. Rxa7 Nd3 30. Nc4 h5 31. Ra3 Rb8 32. Nd2 Nb2+ 33. Kc2 Rxd2+ 34. Kxd2 Nc4+ 35. Kc3 Nxa3 36. Ra1 Rc8+ 37. Kd3 Nc4 38. Rb1 Kf8 39. d5 Nd6 40. e4 f6 41. h3 Ra8 42. Rb4 Ke7 43. Kd4 Ra1 44. Kd3 Re1 45. Ra4 f5 46. exf5 Nxf5 47. Re4+ Rxe4 48. Kxe4 Kf6 49. g4 hxg4 50. hxg4 Nd6+ 51. Kf4 g5+ 52. Ke3 Ke5 53. Kf3 Kxd5 54. Ke3 Ke5 55. Kf3 Kd4 56. Kg3 Ke3 0-1

[Event "Pan American-ch Hybrid U14 31st"]
[Site "Tornelo INT"]
[Date "2021.09.04"]
[Round "7"]
[White "Ramirez Sifuentes, Luis Angel"]
[Black "Barja Viveros, Matias Ariel"]
[Result "1/2-1/2"]
[ECO "B34"]
[WhiteElo "1482"]
[BlackElo "1650"]
[PlyCount "131"]
[EventDate "2021.09.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Nxc6 bxc6 7. e5 Nh5 8. Bc4 Qa5 9. Qe2 Bg7 10. f4 d5 11. exd6 Bxc3+ 12. bxc3 Qxc3+ 13. Kf1 0-0 14. dxe7 Re8 15. Rb1 Bg4 16. Qxg4 Qxc4+ 17. Qe2 Qxe2+ 18. Kxe2 Rxe7+ 19. Kf3 Rae8 20. Bd2 Nf6 21. Rhe1 Ne4 22. Ba5 f5 23. h3 h5 24. Rbd1 Kf7 25. c4 Rb8 26. Rb1 Reb7 27. Rxb7+ Rxb7 28. Re2 Rb1 29. Rc2 Ke6 30. Bc7 Rf1+ 31. Ke2 Rf2+ 32. Kd3 Rxc2 33. Kxc2 c5 34. Bb8 a6 35. Bc7 Kd7 36. Be5 Kc6 37. a4 Kb6 38. Bc3 Nd6 39. a5+ Kc6 40. Kd3 Ne4 41. Be1 Kd6 42. Bh4 Ke6 43. Ke3 Kf7 44. Be1 Kg7 45. h4 Kf6 46. Kd3 Ke6 47. Ke3 Kd6 48. Kd3 Kc6 49. Ke3 Nd6 50. Kd3 Nb7 51. Bc3 Nd8 52. Be5 Nf7 53. Bg7 Nd6 54. Bc3 Ne4 55. Be1 Nf6 56. Bc3 Ng4 57. Be1 Kd6 58. Bg3 Nh6 59. Be1 Nf7 60. Bc3 Nd8 61. Be5+ Ke6 62. Bc3 Nc6 63. Ke3 Nb4 64. Ke2 Kd6 65. Ke3 Kc6 66. Ke2 1/2-1/2

[Event "Wch FIDE Online U14 America qual"]
[Site "Tornelo INT"]
[Date "2020.12.04"]
[Round "7"]
[White "Flores Quillas, Diego Saul Rodrigo"]
[Black "Barja Viveros, Matias Ariel"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2179"]
[BlackElo "1579"]
[PlyCount "77"]
[EventDate "2020.12.01"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "ISS"]
[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 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 d6 8. Be2 0-0 9. 0-0 Bd7 10. f3 Nxd4 11. Bxd4 a5 12. c5 dxc5 13. Bxc5 Rc8 14. Be3 Be6 15. Qa4 Nd7 16. Rfd1 Qc7 17. Rac1 Nc5 18. Qa3 Bxc3 19. Qxc3 Na6 20. Qd4 Qd6 21. Qxd6 exd6 22. a3 Rxc1 23. Rxc1 d5 24. e5 Nb8 25. Rc7 Nc6 26. f4 d4 27. Bd2 Bd5 28. Rxb7 d3 29. Bf3 Bxf3 30. gxf3 Nd4 31. Kf2 Rc8 32. Ke3 Rd8 33. Bxa5 Rd5 34. Bc3 Nf5+ 35. Kd2 Nh4 36. Rb8+ Kg7 37. e6+ Kh6 38. exf7 Nxf3+ 39. Kd1 1-0

[Event "Wch FIDE Online U14 America qual"]
[Site "Tornelo INT"]
[Date "2020.12.03"]
[Round "4"]
[White "Barja Viveros, Matias Ariel"]
[Black "Campos Gomez, Manuel"]
[Result "0-1"]
[ECO "B41"]
[WhiteElo "1579"]
[BlackElo "1604"]
[PlyCount "62"]
[EventDate "2020.12.01"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "ISS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Qc7 7. Be3 Bb4 8. f3 0-0 9. Be2 d5 10. 0-0 dxc4 11. Qa4 Bxc3 12. bxc3 b5 13. Qb4 e5 14. Nf5 Bxf5 15. exf5 Nd5 16. Qc5 Qxc5 17. Bxc5 Rc8 18. Bd6 Nxc3 19. Rfe1 Nxe2+ 20. Rxe2 f6 21. f4 exf4 22. Bxf4 Nc6 23. g4 Re8 24. Rae1 Kf7 25. Rxe8 Rxe8 26. Rd1 Re4 27. Bg3 Rd4 28. Re1 c3 29. Re6 c2 30. Bf4 Rxf4 31. Rxc6 Rc4 0-1

[Event "Wch FIDE Online U14 America qual"]
[Site "Tornelo INT"]
[Date "2020.12.03"]
[Round "5"]
[White "Barja Viveros, Matias Ariel"]
[Black "Melian, Juan Sebastian"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "1579"]
[BlackElo "1597"]
[PlyCount "95"]
[EventDate "2020.12.01"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "ISS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d3 Nc6 4. Be2 d5 5. 0-0 Nge7 6. Bf4 g6 7. Re1 Bg7 8. c3 0-0 9. Bf1 h6 10. h3 b6 11. Nbd2 e5 12. exd5 exf4 13. dxc6 Nxc6 14. Nc4 g5 15. Nfe5 Bb7 16. Nxc6 Bxc6 17. Ne5 Bb7 18. d4 cxd4 19. cxd4 Qd5 20. Qd3 Rfd8 21. Rad1 Rac8 22. b3 Re8 23. Qb5 Red8 24. Qxd5 Bxd5 25. Rd2 Be6 26. Red1 Rd6 27. Nc4 Rd7 28. d5 Bf5 29. a4 Rcd8 30. Bd3 Bxd3 31. Rxd3 f6 32. Kf1 Kf7 33. Na3 Bf8 34. Nb5 Bb4 35. Nd4 Rxd5 36. Nc6 Rxd3 37. Nxd8+ Rxd8 38. Rxd8 a5 39. Rb8 Bc5 40. Ke2 Kg6 41. f3 h5 42. Kd3 Kf5 43. Rd8 g4 44. Rd5+ Kg6 45. hxg4 hxg4 46. fxg4 Be3 47. Ke4 Kh6 48. g3 1-0

[Event "Wch FIDE Online U14 America qual"]
[Site "Tornelo INT"]
[Date "2020.12.03"]
[Round "6"]
[White "Chavez Duero, Brayan Steven"]
[Black "Barja Viveros, Matias Ariel"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "1879"]
[BlackElo "1579"]
[PlyCount "48"]
[EventDate "2020.12.01"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "ISS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. b3 Nc6 3. Bb2 d6 4. Bb5 Bd7 5. Nc3 Nf6 6. d3 g6 7. Nge2 Bg7 8. 0-0 0-0 9. h3 a6 10. Bxc6 Bxc6 11. f4 b5 12. Ng3 b4 13. Nce2 Nxe4 14. Bxg7 Nxg3 15. Bxf8 Nxf1 16. Bxe7 Qxe7 17. Qxf1 Re8 18. Ng3 h5 19. Qf2 Qf6 20. Rf1 h4 21. Nh1 a5 22. Qd2 Qd4+ 23. Nf2 Re3 24. Ng4 Re2+ 0-1

[Event "Wch FIDE Online U14 America qual"]
[Site "Tornelo INT"]
[Date "2020.12.02"]
[Round "2"]
[White "Barja Viveros, Matias Ariel"]
[Black "Srinivasan, Hemant"]
[Result "1-0"]
[ECO "B14"]
[WhiteElo "1579"]
[BlackElo "1717"]
[PlyCount "87"]
[EventDate "2020.12.01"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "ISS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Nc6 7. c5 Be7 8. a3 a5 9. Bb5 0-0 10. 0-0 Qc7 11. Re1 b6 12. Bxc6 Qxc6 13. Ne5 Qb7 14. c6 Qa6 15. a4 Bb4 16. f3 Ne8 17. Bd2 Nd6 18. Qe2 Nf5 19. Nb5 Bxd2 20. Qxd2 Rb8 21. c7 Rb7 22. Nc6 Bd7 23. Nd8 Bxb5 24. c8Q Nd6 25. Qcc2 Rxd8 26. axb5 Qxb5 27. Qdd3 Qd7 28. Qxh7+ Kf8 29. Qh8+ Ke7 30. Qxg7 Rc7 31. Qcg6 Rf8 32. Q6f6+ Ke8 33. Rac1 Rxc1 34. Rxc1 Nc4 35. b3 Ne3 36. Qf4 Nf5 37. Qb8+ Ke7 38. Qgxf8+ Kf6 39. Qe5+ Kg6 40. Qg8+ Kh5 41. g4+ Kh4 42. Qh7+ Kg5 43. Qg8+ Kh6 44. Qeh8# 1-0

[Event "Wch FIDE Online U14 America qual"]
[Site "Tornelo INT"]
[Date "2020.12.02"]
[Round "3"]
[White "Chasin, Nico Werner"]
[Black "Barja Viveros, Matias Ariel"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2058"]
[BlackElo "1579"]
[PlyCount "166"]
[EventDate "2020.12.01"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "ISS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. g4 d5 2. Bg2 Bxg4 3. c4 Nf6 4. cxd5 c6 5. Nc3 cxd5 6. Qb3 e6 7. Qxb7 Nbd7 8. h3 Rb8 9. Qxa7 Bc5 10. Qa4 Bh5 11. a3 0-0 12. d4 Nb6 13. Qd1 Bd6 14. Nf3 Nc4 15. b3 Qa5 16. bxc4 Qxc3+ 17. Bd2 Qxc4 18. Qc1 Qa6 19. Bb4 Rfc8 20. Qd1 Bxb4+ 21. axb4 Qc4 22. 0-0 Qxb4 23. Ne5 Qb3 24. Qxb3 Rxb3 25. Rfc1 Rbb8 26. Nc6 Rxc6 27. Rxc6 Bxe2 28. Rac1 g6 29. Rc8+ Rxc8 30. Rxc8+ Kg7 31. f3 Bb5 32. Kf2 Ne8 33. Rb8 Bd7 34. Bf1 Kf6 35. Rb7 Ba4 36. Rb6 Ng7 37. Bd3 Nf5 38. Bxf5 Kxf5 39. Rb7 Kf6 40. Kg3 h6 41. Ra7 Bc2 42. Kf4 g5+ 43. Kg3 Bg6 44. f4 Kf5 45. fxg5 hxg5 46. Kf3 Bh5+ 47. Ke3 g4 48. hxg4+ Kxg4 49. Ra8 Bg6 50. Ra1 Kg5 51. Rg1+ Kf5 52. Rg2 e5 53. Rf2+ Ke6 54. dxe5 Kxe5 55. Ra2 d4+ 56. Kf3 Bh5+ 57. Kf2 Ke4 58. Ra7 d3 59. Re7+ Kd4 60. Rd7+ Kc3 61. Ke3 Bg6 62. Rc7+ Kb4 63. Kd2 Kb5 64. Kc3 Kb6 65. Rc8 Kb7 66. Rc4 Kb6 67. Kb4 Bh5 68. Rd4 Bg6 69. Rd6+ Kc7 70. Kc5 Be4 71. Ra6 f5 72. Rf6 Kd7 73. Rd6+ Ke7 74. Rh6 Kf7 75. Rh2 Kf6 76. Kd4 Kg5 77. Ke5 Kg4 78. Kd4 Kg3 79. Rd2 Kf3 80. Rd1 Ke2 81. Ra1 d2 82. Ra2 Ke1 83. Ke3 d1Q 0-1

[Event "Wch FIDE Online U14 America qual"]
[Site "Tornelo INT"]
[Date "2020.12.01"]
[Round "1"]
[White "Hernandez Izquierdo, Jose A"]
[Black "Barja Viveros, Matias Ariel"]
[Result "1-0"]
[ECO "B37"]
[WhiteElo "2054"]
[BlackElo "1579"]
[PlyCount "61"]
[EventDate "2020.12.01"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "ISS"]
[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 g6 5. c4 Bg7 6. Nc2 d6 7. Nc3 Nh6 8. Be2 f5 9. Bxh6 Bxh6 10. exf5 Bxf5 11. Nd4 Nxd4 12. Qxd4 0-0 13. 0-0 Bg7 14. Qd2 Qd7 15. Rad1 Rac8 16. b3 Rfd8 17. Bf3 Bxc3 18. Qxc3 b5 19. Bd5+ Be6 20. Qe3 Bxd5 21. cxd5 Rc2 22. Rd2 Rdc8 23. Re1 Rxd2 24. Qxd2 Rc5 25. h3 a6 26. Qg5 Rc7 27. Re6 Qe8 28. h4 Qf7 29. g4 Rc2 30. f4 Rc1+ 31. Kf2 1-0

[Event "South America-ch U12 16th"]
[Site "Buenos Aires"]
[Date "2019.12.03"]
[Round "4.6"]
[White "Garzon Zapatanga, Christopher Leonel"]
[Black "Barja Viveros, Matias Ariel"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1689"]
[BlackElo "1640"]
[PlyCount "51"]
[EventDate "2019.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bc4 g6 4. c3 Bg7 5. d4 cxd4 6. cxd4 d6 7. Nc3 Bg4 8. Bxf7+ Kxf7 9. Ng5+ Ke8 10. Qxg4 Nxd4 11. 0-0 Nf6 12. Qd1 e5 13. Be3 h6 14. Bxd4 hxg5 15. Be3 g4 16. Bg5 Qd7 17. f4 Nh5 18. f5 g3 19. h3 Bh6 20. Bxh6 Rxh6 21. Nd5 Qd8 22. fxg6 Nf4 23. Qa4+ Kf8 24. Nxf4 exf4 25. Rxf4+ Kg7 26. Qd4+ 1-0

[Event "South America-ch U12 16th"]
[Site "Buenos Aires"]
[Date "2019.12.02"]
[Round "3.4"]
[White "Barja Viveros, Matias Ariel"]
[Black "Matvyeyev, Alexander"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "1640"]
[BlackElo "1524"]
[PlyCount "38"]
[EventDate "2019.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Bd6 5. Bd3 Nf6 6. 0-0 0-0 7. Bg5 Bg4 8. h3 Bh5 9. Nbd2 h6 10. Bh4 c6 11. c3 Nbd7 12. Qc2 Bxf3 13. Nxf3 Re8 14. Rae1 Qc7 15. Bxf6 Nxf6 16. c4 dxc4 17. Bxc4 Rac8 18. Rxe8+ Rxe8 19. Re1 Rxe1+ 1/2-1/2

[Event "South America-ch U12 16th"]
[Site "Buenos Aires"]
[Date "2019.12.02"]
[Round "2.10"]
[White "Deichmann, Esteban Horacio1111"]
[Black "Barja Viveros, Matias Ariel"]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "1425"]
[BlackElo "1640"]
[PlyCount "144"]
[EventDate "2019.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d3 g6 4. g3 Bg7 5. c3 d5 6. Nbd2 e5 7. Bg2 Nge7 8. 0-0 0-0 9. Qc2 f5 10. Rd1 Kh8 11. h4 h6 12. Nf1 Be6 13. N3h2 Rc8 14. Qe2 Qd7 15. Nd2 Rcd8 16. Re1 f4 17. Ndf1 dxe4 18. dxe4 Qd3 19. Nd2 fxg3 20. fxg3 Qxg3 21. Ndf3 Bh3 22. Be3 b6 23. Rf1 Qxg2+ 24. Qxg2 Bxg2 25. Kxg2 Rd3 26. Rae1 Kg8 27. Ng4 h5 28. Nf2 Rd6 29. Bg5 Kh7 30. Rd1 Nc8 31. b4 cxb4 32. cxb4 Nd4 33. Nxd4 Rxd4 34. Rxd4 exd4 35. Nd3 Rxf1 36. Kxf1 Kg8 37. Kf2 Nd6 38. Kf3 Kf7 39. e5 Nf5 40. Ke4 Bf8 41. a3 Be7 42. e6+ Kxe6 43. Nf4+ Kf7 44. Bxe7 Nxe7 45. Kxd4 Kf6 46. Nh3 Ke6 47. Kc4 a6 48. a4 Kd6 49. Nf4 Kc6 50. b5+ axb5+ 51. axb5+ Kd6 52. Nd3 Nf5 53. Nf4 Nxh4 54. Nd5 Nf5 55. Nxb6 Ne7 56. Kd4 h4 57. Ke4 g5 58. Nc4+ Kc5 59. Ne5 Nd5 60. Nf3 g4 61. Nh2 g3 62. Kf3 gxh2 63. Kg2 Nf4+ 64. Kxh2 Kxb5 65. Kg1 Kc5 66. Kh1 Kd4 67. Kh2 Ke3 68. Kh1 Kf3 69. Kh2 Kg4 70. Kh1 Kg3 71. Kg1 h3 72. Kh1 Nd3 0-1

[Event "Pan American-ch U20"]
[Site "Cochabamba"]
[Date "2019.08.06"]
[Round "9"]
[White "Barja Viveros, Matias Ariel"]
[Black "Zambrana Estrada, Breyner Andre"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "1544"]
[BlackElo "1426"]
[PlyCount "33"]
[EventDate "2019.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. Bc4 g6 4. f4 Bg7 5. Nf3 Nc6 6. 0-0 Nge7 7. d3 0-0 8. Qe1 b6 9. Qh4 Bb7 10. Bd2 d5 11. Bb3 Nd4 12. Nxd4 cxd4 13. Ne2 dxe4 14. dxe4 Bxe4 15. Rad1 Nf5 16. Qf2 Rc8 17. c3 1/2-1/2

[Event "Pan American-ch U20"]
[Site "Cochabamba"]
[Date "2019.08.05"]
[Round "7"]
[White "Barja Viveros, Matias Ariel"]
[Black "Teran Medina, Marcelo"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "1544"]
[BlackElo "1506"]
[PlyCount "57"]
[EventDate "2019.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. a4 Qa5+ 5. Bd2 b4 6. f3 g6 7. e4 d6 8. Qc1 h5 9. Bd3 Bg7 10. h3 Nbd7 11. f4 Nb6 12. Nf3 Ba6 13. 0-0 0-0-0 14. Na3 Na8 15. Nb5 Bxb5 16. axb5 Qb6 17. Ra6 Qb7 18. e5 Ne8 19. Ng5 Nac7 20. Rc6 Rf8 21. e6 fxe6 22. Nxe6 Rf6 23. Nxd8 Kxd8 24. f5 a6 25. b6 Na8 26. Qa1 gxf5 27. Rxf5 e6 28. Rxf6 Nxf6 29. Rxd6+ 1-0

[Event "Pan American-ch U20"]
[Site "Cochabamba"]
[Date "2019.08.05"]
[Round "8"]
[White "Castellanos Villela, Alejandro"]
[Black "Barja Viveros, Matias Ariel"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "1985"]
[BlackElo "1544"]
[PlyCount "65"]
[EventDate "2019.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 c5 3. Bg2 Nf6 4. 0-0 Bf5 5. c4 e6 6. cxd5 exd5 7. d4 Nc6 8. Nc3 Be7 9. Bg5 cxd4 10. Nxd4 Be6 11. Rc1 0-0 12. Nxe6 fxe6 13. Bh3 Kf7 14. Bxf6 Bxf6 15. e4 d4 16. Qh5+ Ke7 17. Nb5 Qb6 18. Na3 Rac8 19. Nc4 Qc7 20. Qc5+ Kf7 21. Nd6+ Kg6 22. Nxc8 Qxc8 23. f4 Be7 24. Qc4 Kf6 25. e5+ Kg6 26. Bxe6 Qe8 27. Qe2 h5 28. f5+ Kh6 29. Rcd1 Bg5 30. Rf3 g6 31. h4 Be3+ 32. Rxe3 dxe3 33. Qxe3+ 1-0

[Event "Pan American-ch U20"]
[Site "Cochabamba"]
[Date "2019.08.04"]
[Round "6"]
[White "Ccerhuayo Escobedo, Mels Leopold"]
[Black "Barja Viveros, Matias Ariel"]
[Result "1/2-1/2"]
[ECO "D55"]
[WhiteElo "1820"]
[BlackElo "1544"]
[PlyCount "35"]
[EventDate "2019.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 0-0 6. e3 a6 7. cxd5 exd5 8. Bd3 b6 9. h4 Bb7 10. Bxf6 Bxf6 11. Bxh7+ Kxh7 12. Ng5+ Kg8 13. Qh5 Re8 14. Qxf7+ Kh8 15. Ne2 Nd7 16. Qh5+ Kg8 17. Qf7+ Kh8 18. Qh5+ 1/2-1/2

[Event "Pan American-ch U20"]
[Site "Cochabamba"]
[Date "2019.08.03"]
[Round "5"]
[White "Barja Viveros, Matias Ariel"]
[Black "Medrano, Sebastian"]
[Result "0-1"]
[ECO "A47"]
[WhiteElo "1544"]
[BlackElo "2086"]
[PlyCount "77"]
[EventDate "2019.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 b6 4. e4 h6 5. Bxf6 Qxf6 6. Bd3 Bb7 7. Nbd2 g6 8. c3 Bg7 9. Qe2 Qe7 10. 0-0-0 d6 11. Rhe1 Nd7 12. d5 0-0-0 13. Bb5 exd5 14. exd5 Qxe2 15. Rxe2 Bxd5 16. Nd4 Bxd4 17. cxd4 Rde8 18. Rde1 Kd8 19. f3 Rxe2 20. Rxe2 Re8 21. Ne4 Re6 22. Nc3 Rxe2 23. Bxe2 Bb7 24. Bc4 Ke7 25. Nd5+ Bxd5 26. Bxd5 c5 27. Kd2 g5 28. Kd3 Nf6 29. Bc6 d5 30. Ba4 Kd6 31. Bc2 Ne8 32. a3 Nc7 33. dxc5+ bxc5 34. b4 c4+ 35. Ke3 Ke5 36. a4 d4+ 37. Kd2 d3 38. Bxd3 cxd3 39. Kxd3 0-1

[Event "Pan American-ch U20"]
[Site "Cochabamba"]
[Date "2019.08.03"]
[Round "4"]
[White "Santiago Vilca, Lito Gustavo"]
[Black "Barja Viveros, Matias Ariel"]
[Result "1/2-1/2"]
[ECO "A88"]
[WhiteElo "1818"]
[BlackElo "1544"]
[PlyCount "43"]
[EventDate "2019.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nf3 f5 2. g3 Nf6 3. Bg2 g6 4. 0-0 Bg7 5. d4 0-0 6. c4 d6 7. Nc3 c6 8. b3 Na6 9. Ba3 Nc7 10. Rc1 Bd7 11. d5 c5 12. Nd2 a6 13. b4 b6 14. h3 Qc8 15. Kh2 Rb8 16. e4 b5 17. Re1 cxb4 18. Bxb4 bxc4 19. Ba5 Nb5 20. exf5 Bxf5 21. Rxe7 Re8 22. Nde4 1/2-1/2

[Event "Pan American-ch U20"]
[Site "Cochabamba"]
[Date "2019.08.02"]
[Round "3"]
[White "Barja Viveros, Matias Ariel"]
[Black "Mollo, Jhoan"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1544"]
[BlackElo "2023"]
[PlyCount "114"]
[EventDate "2019.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 g6 3. f4 Nc6 4. Bc4 Bg7 5. Nf3 e6 6. 0-0 Nge7 7. d3 0-0 8. Qe1 d5 9. Bb3 a6 10. a4 Nd4 11. Nxd4 cxd4 12. Ne2 dxe4 13. dxe4 d3 14. Nc3 Nc6 15. Be3 Nd4 16. Rd1 dxc2 17. Bxc2 Nxc2 18. Rxd8 Nxe1 19. Rxf8+ Bxf8 20. Rxe1 Bd7 21. Rd1 Bc6 22. a5 Bb4 23. Bb6 f5 24. e5 Kf7 25. Kf2 Be7 26. Ne2 Rg8 27. Nd4 Bd5 28. Nf3 Rc8 29. g3 Rc2+ 30. Rd2 Rc1 31. Nd4 Ke8 32. Rc2 Rxc2+ 33. Nxc2 g5 34. Ke3 Kf7 35. Nd4 Kg6 36. Nf3 gxf4+ 37. Kxf4 Bf8 38. Ng5 Bb4 39. Nf3 Kh5 40. h3 Bf8 41. g4+ fxg4 42. hxg4+ Kg6 43. Nh4+ Kf7 44. g5 Bb4 45. Kg4 Be1 46. Nf3 Bxf3+ 47. Kxf3 Bd2 48. Kg4 Bc1 49. b4 Kg6 50. Bd8 Bb2 51. Kf4 Bc1+ 52. Kg4 Bd2 53. Be7 Be3 54. Bd8 Bd4 55. Kf4 Bc3 56. Be7 Kh5 57. Ke4 Bd2 0-1

[Event "Pan American-ch U20"]
[Site "Cochabamba"]
[Date "2019.08.02"]
[Round "2"]
[White "Johnson, Joshua"]
[Black "Barja Viveros, Matias Ariel"]
[Result "1-0"]
[ECO "B75"]
[WhiteElo "2241"]
[BlackElo "1544"]
[PlyCount "97"]
[EventDate "2019.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 d6 7. f3 Bd7 8. Qd2 h5 9. 0-0-0 Nf6 10. Kb1 Ne5 11. h3 Rc8 12. f4 Nc6 13. Be2 Qa5 14. Nb3 Qc7 15. Nd5 Nxd5 16. exd5 Nb4 17. Rc1 Na6 18. Bd4 f6 19. g4 hxg4 20. Bxg4 Nc5 21. Qe2 Kf7 22. Bxc5 Bxg4 23. Qxg4 f5 24. Qe2 dxc5 25. Qe6+ Kf8 26. Qxg6 Rh6 27. Qxf5+ Rf6 28. Qg4 Rd8 29. Rcd1 Rdd6 30. c3 Rg6 31. Qe2 Rdf6 32. Qe5 Rd6 33. Qe4 Rdf6 34. Rhe1 Rg3 35. Nxc5 Kf7 36. Ne6 Qd6 37. Ng5+ Kg8 38. Qh7+ Kf8 39. Ne6+ Kf7 40. Qh5+ Kg8 41. Rg1 Rfg6 42. Qxg6 Rxg6 43. Rxg6 Kf7 44. Rxg7+ Kf6 45. Rg5 Qa6 46. Nd4 Qc4 47. Rf5+ Kg6 48. Rg1+ Kh6 49. Rgg5 1-0

[Event "Pan American-ch U20"]
[Site "Cochabamba"]
[Date "2019.08.01"]
[Round "1"]
[White "Barja Viveros, Matias Ariel"]
[Black "Santiago Vilca, Christian Amilca"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1544"]
[BlackElo "2256"]
[PlyCount "91"]
[EventDate "2019.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. Bc4 Nc6 4. f4 Nf6 5. e5 d5 6. exd6 Bxd6 7. d3 a6 8. a4 0-0 9. Nge2 Re8 10. 0-0 Bf8 11. Ne4 Nd5 12. N2c3 Na5 13. Ba2 Nb4 14. Be3 Nxa2 15. Rxa2 b6 16. Ra1 f5 17. Ng5 h6 18. Nf3 Nc6 19. Qd2 Bb7 20. Rad1 Qf6 21. Qf2 Rad8 22. d4 cxd4 23. Nxd4 Na5 24. Nb3 Nc4 25. Bxb6 Rxd1 26. Nxd1 Nxb6 27. Qxb6 Re7 28. Nc3 g5 29. Rd1 Rg7 30. Nc5 Bxc5+ 31. Qxc5 gxf4 32. Rd2 f3 33. g3 f4 34. Qd6 Qf5 35. Qd8+ Kh7 36. Qd3 fxg3 37. Qxf5+ exf5 38. hxg3 f4 39. g4 h5 40. g5 Kg6 41. Nd5 Kxg5 42. Kf2 Kg4 43. Rd1 Bxd5 44. Rg1+ Kh3 45. Rxg7 h4 46. b4 1-0

[Event "Pan American-ch U12"]
[Site "Guayaquil"]
[Date "2019.07.27"]
[Round "9"]
[White "Barja Viveros, Matias Ariel"]
[Black "Zacarias Rodriguez, Santiago"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1528"]
[BlackElo "1768"]
[PlyCount "51"]
[EventDate "2019.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Bc4 Bg7 5. Nf3 e6 6. 0-0 Nge7 7. d3 d5 8. Bb3 0-0 9. Bd2 Rb8 10. a4 a6 11. Qe2 b5 12. axb5 axb5 13. Rae1 c4 14. Ba2 b4 15. Nd1 Ra8 16. Bb1 Ra1 17. exd5 cxd3 18. cxd3 Nxd5 19. Bc2 b3 20. Bxb3 Qb6+ 21. Nf2 Rxe1 22. Rxe1 Qxb3 23. Rc1 Nd4 24. Qd1 Qxd1+ 25. Nxd1 Nxf3+ 26. gxf3 0-1

[Event "Pan American-ch U12"]
[Site "Guayaquil"]
[Date "2019.07.26"]
[Round "8"]
[White "De Siqueira, Luigy Lira"]
[Black "Barja Viveros, Matias Ariel"]
[Result "0-1"]
[ECO "B78"]
[WhiteElo "1784"]
[BlackElo "1528"]
[PlyCount "50"]
[EventDate "2019.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be3 Bg7 6. Nc3 d6 7. Bc4 Bd7 8. Qd2 Nf6 9. f3 0-0 10. g4 Rc8 11. Bb3 Ne5 12. 0-0-0 Nc4 13. Bxc4 Rxc4 14. h4 h5 15. gxh5 Nxh5 16. Nde2 Qa5 17. Kb1 Rfc8 18. Bh6 Bh8 19. Rhg1 Rxc3 20. Nxc3 Rxc3 21. bxc3 Be6 22. Qd4 Bxd4 23. cxd4 Bxa2+ 24. Kb2 Bc4 25. Bg5 Qb4+ 0-1

[Event "Pan American-ch U12"]
[Site "Guayaquil"]
[Date "2019.07.25"]
[Round "7"]
[White "Barja Viveros, Matias Ariel"]
[Black "De la Cruz Navarro, Martin Leonardo"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1528"]
[BlackElo "1869"]
[PlyCount "58"]
[EventDate "2019.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Bc4 Bg7 5. Nf3 e6 6. 0-0 Nge7 7. d3 0-0 8. Bd2 d5 9. Bb3 Rb8 10. a4 a6 11. Qe2 b5 12. axb5 axb5 13. Rae1 d4 14. Nd1 Na5 15. Ba2 Qb6 16. Kh1 Nec6 17. Nh4 Qd8 18. Nf3 Ba6 19. f5 exf5 20. exf5 c4 21. fxg6 hxg6 22. Ng5 Rb7 23. Qg4 Re8 24. Qh4 Rxe1 25. Rxe1 Re7 26. Rf1 Ne5 27. Qh7+ Kf8 28. Bb4 Nac6 29. Ne6+ Ke8 1-0

[Event "Pan American-ch U12"]
[Site "Guayaquil"]
[Date "2019.07.24"]
[Round "6"]
[White "Ortiz Pilco, Carlos Alberto"]
[Black "Barja Viveros, Matias Ariel"]
[Result "0-1"]
[ECO "A82"]
[BlackElo "1528"]
[PlyCount "56"]
[EventDate "2019.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. g4 h6 5. f3 d5 6. g5 hxg5 7. Bxg5 Bf5 8. Bxf6 exf6 9. fxe4 Bxe4 10. Nxe4 dxe4 11. Bc4 f5 12. Qd2 Qh4+ 13. Qf2 Qxf2+ 14. Kxf2 Bd6 15. h3 Ke7 16. Ne2 Kf6 17. Ke3 Nc6 18. c3 Ne7 19. Raf1 Rh4 20. Bb3 Rah8 21. Ng1 g5 22. c4 b6 23. Bc2 Ng6 24. a3 Nf4 25. Kd2 Nxh3 26. Nxh3 Rxh3 27. Rxh3 Rxh3 28. Bxe4 Bf4+ 0-1

[Event "Pan American-ch U12"]
[Site "Guayaquil"]
[Date "2019.07.23"]
[Round "4"]
[White "Sivakumar, Shaaketh"]
[Black "Barja Viveros, Matias Ariel"]
[Result "1-0"]
[ECO "A85"]
[WhiteElo "1755"]
[BlackElo "1528"]
[PlyCount "57"]
[EventDate "2019.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 f5 2. Bf4 Nf6 3. Nf3 g6 4. e3 Bg7 5. Be2 0-0 6. 0-0 d6 7. c4 c6 8. Nc3 Na6 9. h3 Nc7 10. Qc2 Qe8 11. Rfd1 Nh5 12. Bh2 e5 13. dxe5 dxe5 14. c5 f4 15. Bc4+ Be6 16. Ne4 Nd5 17. Nd6 Qe7 18. e4 Nc7 19. Nxb7 Rab8 20. Nd6 Bxc4 21. Qxc4+ Qe6 22. Qa4 Rxb2 23. Ng5 Qe7 24. Qc4+ Nd5 25. exd5 Qxg5 26. dxc6+ Kh8 27. Nf7+ Rxf7 28. Qxf7 h6 29. c7 1-0

[Event "Pan American-ch U12"]
[Site "Guayaquil"]
[Date "2019.07.22"]
[Round "2"]
[White "Atanasov, Anthony"]
[Black "Barja Viveros, Matias Ariel"]
[Result "1-0"]
[ECO "A85"]
[WhiteElo "1902"]
[BlackElo "1528"]
[PlyCount "99"]
[EventDate "2019.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 f5 2. c4 Nf6 3. Nc3 g6 4. h4 d6 5. h5 Nxh5 6. Rxh5 gxh5 7. e4 Be6 8. d5 Bf7 9. exf5 Qd7 10. Qf3 Na6 11. Be3 c6 12. Nh3 h6 13. Bd3 Nb4 14. Be4 cxd5 15. cxd5 Rc8 16. Nf4 Bg7 17. a3 Bxc3+ 18. bxc3 Rxc3 19. axb4 Qb5 20. Qe2 Qxb4 21. Bd2 Qd4 22. Qb5+ Kf8 23. Ne2 Qxe4 24. Bxc3 Rg8 25. Rxa7 Be8 26. Qxb7 Rxg2 27. f6 h4 28. Qxe7+ Qxe7 29. fxe7+ Kf7 30. Nf4 Rg5 31. Kd2 h3 32. Ra1 Kxe7 33. Re1+ Kf7 34. Rh1 Bd7 35. Ke3 Bc8 36. f3 Bd7 37. Nxh3 Rxd5 38. Nf4 Rc5 39. Bd4 Ra5 40. Rxh6 Ra3+ 41. Kf2 Bc6 42. Rf6+ Ke7 43. Ng6+ Kd7 44. Be3 Ra2+ 45. Kg3 Ra3 46. Kf4 Ra4+ 47. Kg5 Ra3 48. Rf7+ Ke6 49. Re7+ Kd5 50. Re4 1-0

