[Event "American Continental 14th"]
[Site "Montevideo"]
[Date "2018.06.10"]
[Round "11"]
[White "Oviedo, Mathias"]
[Black "Davila Texeira, Mario"]
[Result "0-1"]
[ECO "C53"]
[WhiteElo "1611"]
[BlackElo "1873"]
[PlyCount "34"]
[EventDate "2018.06.01"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 d6 5. d4 exd4 6. Nxd4 Ne5 7. Bb3 Qh4 8. 0-0 Nf6 9. Nd2 Bg4 10. N4f3 Qh5 11. Nxe5 Qxe5 12. Qc2 0-0 13. Kh1 Be2 14. Re1 Ng4 15. g3 Qh5 16. h4 Nxf2+ 17. Kg2 Bd3 0-1

[Event "American Continental 14th"]
[Site "Montevideo"]
[Date "2018.06.09"]
[Round "10"]
[White "Marques, Ubiratan de Azevedo"]
[Black "Oviedo, Mathias"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "1777"]
[BlackElo "1611"]
[PlyCount "114"]
[EventDate "2018.06.01"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Nc3 e6 4. a3 Nf6 5. Bc4 Be7 6. 0-0 0-0 7. d4 Nxe4 8. Nxe4 d5 9. Nxc5 dxc4 10. Ne4 b5 11. c3 Bb7 12. Re1 Nd7 13. Bg5 Bxe4 14. Bxe7 Bxf3 15. Bxd8 Bxd1 16. Be7 Rfe8 17. Bd6 Bc2 18. f4 Bd3 19. Re3 Nb6 20. Rd1 Na4 21. Rd2 a5 22. g4 Ra6 23. Bc5 Nxc5 24. dxc5 Rc6 25. b4 axb4 26. axb4 Ra8 27. Kf2 Ra3 28. Rexd3 cxd3 29. Rxd3 g6 30. h4 Kg7 31. Ke3 Ra1 32. Kd4 Rg1 33. g5 Rg4 34. Rf3 Rxh4 35. c4 bxc4 36. b5 Rc8 37. c6 c3 38. Kxc3 Rh1 39. Kb4 Rb1+ 40. Rb3 Rxb3+ 41. Kxb3 Kf8 42. Kb4 Ke7 43. Kc5 Re8 44. b6 Kd8 45. Kd6 Kc8 46. b7+ Kb8 47. Kd7 Rh8 48. Ke7 Kc7 49. Kxf7 Kxc6 50. Kg7 Rb8 51. Kxh7 Kxb7 52. Kxg6 Rf8 53. Kg7 Rxf4 54. Kh7 Rg4 55. Kh6 e5 56. g6 e4 57. Kh7 e3 0-1

[Event "American Continental 14th"]
[Site "Montevideo"]
[Date "2018.06.08"]
[Round "9"]
[White "Oviedo, Mathias"]
[Black "Chaves, Jorge Antonio Torre"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "1611"]
[BlackElo "1936"]
[PlyCount "64"]
[EventDate "2018.06.01"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 d6 6. Bb3 0-0 7. Nbd2 a6 8. h3 Ba7 9. 0-0 Qe7 10. Re1 h6 11. Nf1 Be6 12. Be3 Bd7 13. Qd2 Kh7 14. Ng3 Bxe3 15. Qxe3 g6 16. d4 Na5 17. Bc2 Nc4 18. Qe2 Nxb2 19. Bb3 Na4 20. dxe5 dxe5 21. h4 Nc5 22. h5 Bg4 23. hxg6+ fxg6 24. Bc2 Ne6 25. Qe3 Bxf3 26. Qxf3 Nh5 27. Nf5 Qg5 28. Rad1 Rad8 29. Rxd8 Nxd8 30. Rd1 gxf5 31. exf5 Nf6 32. Qe2 Nc6 0-1

[Event "American Continental 14th"]
[Site "Montevideo"]
[Date "2018.06.07"]
[Round "8"]
[White "Campora, Edgardo"]
[Black "Oviedo, Mathias"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1772"]
[BlackElo "1611"]
[PlyCount "60"]
[EventDate "2018.06.01"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 e6 4. Bc4 Nf6 5. a4 d5 6. Bb5+ Bd7 7. exd5 Nxd5 8. Nxd5 exd5 9. Bxd7+ Nxd7 10. d4 Nf6 11. Nf3 Bd6 12. 0-0 0-0 13. Nh4 Ne4 14. Nf5 cxd4 15. Nxd6 Qxd6 16. Qxd4 Qc5 17. Qxc5 Nxc5 18. Be3 Rac8 19. Rfd1 Rfd8 20. c4 Nb3 21. Rab1 Rxc4 22. Bxa7 Rxa4 23. Bb6 Rd6 24. Bf2 d4 25. Re1 f6 26. Rbd1 Ra2 27. Re7 Ra1 28. Ree1 Ra2 29. Re7 d3 30. Rxb7 Ra1 0-1

[Event "American Continental 14th"]
[Site "Montevideo"]
[Date "2018.06.07"]
[Round "7"]
[White "Oviedo, Mathias"]
[Black "Macias Araya, Javier"]
[Result "1-0"]
[ECO "C24"]
[WhiteElo "1611"]
[BlackElo "1378"]
[PlyCount "83"]
[EventDate "2018.06.01"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 d5 5. exd5 Nxd5 6. Qe2 Be7 7. Nxe5 Nd4 8. Qd1 0-0 9. 0-0 Be6 10. c3 Nc6 11. Nxc6 bxc6 12. Nd2 Bd6 13. Nf3 Qf6 14. Re1 Bg4 15. Bg5 Qg6 16. Ne5 Qxg5 17. Nxg4 h5 18. Ne3 Rae8 19. Qf3 Ne7 20. Re2 g6 21. Rae1 a5 22. Nc2 Rb8 23. Nd4 Rb6 24. g3 c5 25. Nb5 Nf5 26. Re8 Rb8 27. Qd5 Rbxe8 28. Rxe8 Qf6 29. Rxf8+ Kxf8 30. Nxd6 cxd6 31. Qa8+ Kg7 32. Qxa5 Qg5 33. Qc7 Qf6 34. a4 Qe7 35. Qxe7 Nxe7 36. a5 Nc8 37. b4 Kf8 38. b5 Ke7 39. b6 Nxb6 40. axb6 Kd7 41. Bxf7 Kc6 42. Bxg6 1-0

[Event "American Continental 14th"]
[Site "Montevideo"]
[Date "2018.06.05"]
[Round "6"]
[White "Tregarthen, Emiliano"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "B99"]
[WhiteElo "2083"]
[BlackElo "1611"]
[PlyCount "63"]
[EventDate "2018.06.01"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Nbd7 9. 0-0-0 Qc7 10. Qh3 b5 11. Bxb5 axb5 12. Ndxb5 Qb6 13. Qd3 Rb8 14. Qd4 0-0 15. e5 Qxd4 16. Rxd4 dxe5 17. fxe5 Nxe5 18. Bf4 Nfd7 19. Rhd1 Rb7 20. a4 Bc5 21. Re4 Ng4 22. Bd6 Nf2 23. Bxf8 Nxd1 24. Bxc5 Nxc3 25. bxc3 f5 26. Rc4 Nxc5 27. Rxc5 Bd7 28. c4 Kf7 29. a5 Ke7 30. a6 Rb8 31. Nc7 Bc8 32. a7 1-0

[Event "American Continental 14th"]
[Site "Montevideo"]
[Date "2018.06.04"]
[Round "5"]
[White "Oviedo, Mathias"]
[Black "Pinero, Ismael"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "1611"]
[BlackElo "1883"]
[PlyCount "90"]
[EventDate "2018.06.01"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 0-0 12. Nc2 Bg5 13. a4 bxa4 14. Rxa4 a5 15. Bc4 Bd7 16. Ra1 Kh8 17. 0-0 f5 18. f3 Rb8 19. b4 axb4 20. Ncxb4 Nxb4 21. Nxb4 Be3+ 22. Kh1 Be8 23. Nd5 Bc5 24. Qd3 f4 25. Rfb1 Rxb1+ 26. Rxb1 Bc6 27. Bb5 Bxd5 28. Qxd5 Qa5 29. Qd3 h5 30. c4 Rf6 31. Qd1 Bd4 32. Qa4 Qd2 33. Qa8+ Kh7 34. Bd7 Rg6 35. g3 Qf2 36. Qa3 fxg3 37. hxg3 Rxg3 38. Bf5+ Kh6 39. Qxd6+ g6 40. Qf8+ Kg5 41. f4+ Kh4 42. Qf6+ g5 43. Qxg5+ Rxg5 44. fxg5 Kg3 45. Rb3+ Be3 0-1

[Event "American Continental 14th"]
[Site "Montevideo"]
[Date "2018.06.03"]
[Round "3"]
[White "Oviedo, Mathias"]
[Black "Zaruski, Julio"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1611"]
[BlackElo "1862"]
[PlyCount "84"]
[EventDate "2018.06.01"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. c3 Nf6 5. d3 d6 6. Nbd2 0-0 7. Bb3 h6 8. Nf1 Re8 9. Ng3 Bf8 10. 0-0 Be6 11. Bc2 d5 12. d4 exd4 13. e5 Ne4 14. cxd4 Nxg3 15. hxg3 g6 16. Nh4 b6 17. a3 a5 18. Qd3 Ne7 19. f4 Nf5 20. Qc3 Nxd4 21. Bd3 c5 22. f5 gxf5 23. Nxf5 Bxf5 24. Rxf5 Nxf5 25. Bxf5 Bg7 26. Bf4 d4 27. Qf3 b5 28. Qg4 Ra6 29. Re1 Ree6 30. Kf2 d3 31. Rh1 Kf8 32. Bxe6 Rxe6 33. Rd1 c4 34. Qf5 Qd4+ 35. Kf1 b4 36. axb4 Qxb2 37. bxa5 Qe2+ 38. Kg1 Qxd1+ 39. Kh2 Qa4 40. Qe4 Qxa5 41. Qxc4 Qd8 42. Kh3 Kg8 0-1

[Event "American Continental 14th"]
[Site "Montevideo"]
[Date "2018.06.03"]
[Round "4"]
[White "Ribeiro, Gilnei Guedes"]
[Black "Oviedo, Mathias"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1445"]
[BlackElo "1611"]
[PlyCount "48"]
[EventDate "2018.06.01"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 c5 4. c3 e6 5. Nf3 Be7 6. Bd3 Nh5 7. Bg3 Nc6 8. Nbd2 0-0 9. Ne5 Nxg3 10. Bxh7+ Kh8 11. hxg3 Bg5 12. Bg6+ Bh6 13. Nxf7+ Rxf7 14. Bxf7 e5 15. Qh5 exd4 16. Qxd5 Qe7 17. e4 Ne5 18. Bh5 Nd3+ 19. Ke2 Be6 20. Qxe6 Qxe6 21. Kxd3 dxc3 22. Kxc3 Qf6+ 23. Kc2 Qxf2 24. Rad1 Rd8 0-1

[Event "American Continental 14th"]
[Site "Montevideo"]
[Date "2018.06.02"]
[Round "2"]
[White "Da Silva Junior, Sediney Mari"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "1990"]
[BlackElo "1611"]
[PlyCount "51"]
[EventDate "2018.06.01"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 Bd7 5. e5 dxe5 6. Nxe5 Nc6 7. Nxd7 Qxd7 8. 0-0 e5 9. Bb5 a6 10. Bxc6 Qxc6 11. Re1 Bd6 12. d4 cxd4 13. cxd4 e4 14. Bg5 Kf8 15. Bxf6 gxf6 16. Nc3 f5 17. Qh5 Bb4 18. Qxf5 Bxc3 19. bxc3 Re8 20. Re3 Qe6 21. Qc5+ Qe7 22. Qh5 Qf6 23. Rae1 Qf4 24. Qc5+ Kg7 25. Qd5 f5 26. Qxb7+ 1-0

[Event "American Continental 14th"]
[Site "Montevideo"]
[Date "2018.06.01"]
[Round "1"]
[White "Oviedo, Mathias"]
[Black "Fernandez, Maria Florencia"]
[Result "0-1"]
[ECO "B76"]
[WhiteElo "1611"]
[BlackElo "2203"]
[PlyCount "50"]
[EventDate "2018.06.01"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. 0-0-0 d5 10. exd5 Nxd5 11. Nxc6 bxc6 12. Nxd5 cxd5 13. Qxd5 Qc7 14. Qxa8 Bf5 15. Qxf8+ Kxf8 16. Rd2 Kg8 17. Be2 h5 18. h3 Qe5 19. Bd4 Qa5 20. Bc4 Bh6 21. Bc3 Qc5 22. Bb3 Qf2 23. g4 Qxf3 24. Rhd1 hxg4 25. hxg4 Bxg4 0-1

[Event "URU-ch U20/Girls"]
[Site "Nueva Helvecia"]
[Date "2018.04.23"]
[Round "6"]
[White "Oviedo, Mathias"]
[Black "Perez, Cecilia Manuela"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "1601"]
[BlackElo "1619"]
[PlyCount "89"]
[EventDate "2018.04.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "URU"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. g3 c5 8. Bg2 Be7 9. 0-0 0-0 10. Qe2 cxd4 11. Rd1 Bc5 12. c3 d3 13. Rxd3 Qb6 14. Ne5 Rd8 15. Nc4 Qc7 16. Bf4 Qe7 17. Rad1 Rxd3 18. Qxd3 Nd7 19. Bxb7 Bxb7 20. Qxd7 Bf3 21. Qxe7 Bxe7 22. Rd7 Be2 23. Rxe7 Bxc4 24. Be3 Bxa2 25. Rxa7 Rxa7 26. Bxa7 Bb3 27. Kf1 Kf8 28. Ke2 Ke7 29. Kd3 Kd6 30. c4 g6 31. Kc3 Ba4 32. b4 Kc6 33. Be3 Bd1 34. b5+ Kb7 35. c5 Bf3 36. Kb4 Bd5 37. Kc3 Bf3 38. Kd4 f6 39. c6+ Bxc6 40. bxc6+ Kxc6 41. Ke4 h5 42. Bd4 e5 43. Bxe5 f5+ 44. Kf4 Kd5 45. Bf6 1-0

[Event "URU-ch U20/Girls"]
[Site "Nueva Helvecia"]
[Date "2018.04.22"]
[Round "3"]
[White "Callero, Juan"]
[Black "Oviedo, Mathias"]
[Result "0-1"]
[ECO "B90"]
[BlackElo "1601"]
[PlyCount "120"]
[EventDate "2018.04.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "URU"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nf3 Be6 8. Ng5 Qd7 9. Nxe6 Qxe6 10. Nd5 Nxd5 11. Qxd5 Qd7 12. 0-0-0 Be7 13. h4 0-0 14. f4 exf4 15. Bxf4 Qg4 16. Bxd6 Bxd6 17. Qxd6 Qxe4 18. Qd5 Qe3+ 19. Kb1 Nc6 20. Bc4 Rad8 21. Qf3 Qxf3 22. gxf3 Ne5 23. Bd5 b5 24. Rhe1 Rfe8 25. f4 Ng6 26. Rxe8+ Rxe8 27. a3 Nxf4 28. Bb3 g6 29. Rf1 Ne6 30. Bxe6 Rxe6 31. b3 f5 32. c4 bxc4 33. bxc4 Re4 34. Rc1 Rxh4 35. c5 Rd4 36. c6 Rd8 37. c7 Rc8 38. Rc3 Kf7 39. Kc2 Ke6 40. Kd3 Kd6 41. Ke3 Rxc7 42. Rd3+ Ke5 43. Kf2 h5 44. Re3+ Kf6 45. Kg3 g5 46. Rd3 Ke5 47. Re3+ Kd4 48. Re1 Rc3+ 49. Kf2 Rxa3 50. Rd1+ Ke4 51. Re1+ Kf4 52. Rc1 Ra2+ 53. Kf1 Kg3 54. Rc3+ Kg4 55. Rc4+ f4 56. Rc1 Kg3 57. Rc3+ f3 58. Rc1 h4 59. Rd1 h3 60. Rc1 h2 0-1

[Event "URU-ch U20/Girls"]
[Site "Nueva Helvecia"]
[Date "2018.04.22"]
[Round "5"]
[White "Cucchi, Leonardo"]
[Black "Oviedo, Mathias"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "1252"]
[BlackElo "1601"]
[PlyCount "40"]
[EventDate "2018.04.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "URU"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[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 0-0 10. f4 b5 11. a3 Nc6 12. Qe1 Ng4 13. Bd2 f5 14. Bf3 Bh4 15. g3 Bf6 16. exf5 Bxf5 17. Bxc6 Qb6+ 18. Kg2 Qxc6+ 19. Kg1 Bd8 20. h3 Bb6+ 0-1

[Event "URU-ch U20/Girls"]
[Site "Nueva Helvecia"]
[Date "2018.04.22"]
[Round "4"]
[White "Oviedo, Mathias"]
[Black "Sosa, Bruno"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "1601"]
[BlackElo "1395"]
[PlyCount "119"]
[EventDate "2018.04.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "URU"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 d6 6. Bb3 0-0 7. Nbd2 Be6 8. Nf1 Bxb3 9. axb3 a6 10. Ng3 h6 11. 0-0 Ne7 12. Nh4 Qd7 13. Qf3 Qg4 14. Nhf5 Nxf5 15. Qxf5 Qxf5 16. Nxf5 Kh7 17. b4 Bb6 18. Kh1 Ng4 19. d4 g6 20. f3 gxf5 21. fxg4 fxg4 22. dxe5 dxe5 23. Rf5 Rad8 24. h4 g3 25. Rf1 Rd7 26. b3 Rfd8 27. Bb2 f6 28. c4 Bd4 29. Bxd4 Rxd4 30. Rxf6 Rd1+ 31. Rf1 Rxa1 32. Rxa1 Rd4 33. Kg1 Rxe4 34. Kf1 Rxh4 35. Ke2 Rg4 36. Kf3 Rg5 37. b5 axb5 38. Ra7 bxc4 39. bxc4 Rf5+ 40. Ke4 Kg6 41. Rxb7 Rf4+ 42. Kxe5 Rxc4 43. Rb3 Kg5 44. Rxg3+ Rg4 45. Rc3 Rxg2 46. Rxc7 Rg4 47. Rg7+ Kh5 48. Rf7 Rg5+ 49. Kf4 Kg6 50. Rf8 Kg7 51. Rf5 Rxf5+ 52. Kxf5 Kf7 53. Kg4 Kg6 54. Kh4 h5 55. Kg3 Kg5 56. Kh3 h4 57. Kg2 Kg4 58. Kh2 h3 59. Kg1 Kg3 60. Kh1 1/2-1/2

[Event "URU-ch U20/Girls"]
[Site "Nueva Helvecia"]
[Date "2018.04.21"]
[Round "1"]
[White "Cerrudo, Mia"]
[Black "Oviedo, Mathias"]
[Result "0-1"]
[ECO "C50"]
[BlackElo "1601"]
[PlyCount "34"]
[EventDate "2018.04.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "URU"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Bc4 Nf6 5. d3 Ng4 6. 0-0 0-0 7. h3 Nf6 8. Bg5 h6 9. Bh4 Be7 10. Re1 Nh5 11. a4 Bxh4 12. Rf1 d6 13. Qe1 Nf4 14. g3 Nd4 15. b3 Nxf3+ 16. Kh1 Qd7 17. Qd1 Qxh3# 0-1

[Event "URU-ch U20/Girls"]
[Site "Nueva Helvecia"]
[Date "2018.04.21"]
[Round "2"]
[White "Oviedo, Mathias"]
[Black "Dominguez, Facundo"]
[Result "0-1"]
[ECO "B45"]
[WhiteElo "1601"]
[BlackElo "2143"]
[PlyCount "20"]
[EventDate "2018.04.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "URU"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be3 Bb4 7. f3 d5 8. exd5 Nxd5 9. Qd2 Nxe3 10. Qxe3 Qxd4 0-1

[Event "Wch U16"]
[Site "Montevideo"]
[Date "2017.09.26"]
[Round "11"]
[White "Sevastjanovs, Roberts"]
[Black "Oviedo, Mathias"]
[Result "0-1"]
[ECO "B10"]
[WhiteElo "1604"]
[BlackElo "1556"]
[PlyCount "68"]
[EventDate "2017.09.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 c6 3. e4 d5 4. cxd5 cxd5 5. exd5 Nxd5 6. Bc4 Be6 7. Qa4+ Nc6 8. Qb5 Nxc3 9. dxc3 Bxc4 10. Qxc4 g6 11. Nf3 Bg7 12. 0-0 0-0 13. Be3 Qc7 14. Rfe1 Rfe8 15. Ng5 e6 16. Qh4 h5 17. Qh3 Ne5 18. Bf4 Qc5 19. Ne4 Qc4 20. Qg3 Nd3 21. b3 Qa6 22. Red1 Nxf4 23. Qxf4 Red8 24. Nc5 Qc6 25. Rxd8+ Rxd8 26. Qg5 Rd5 27. Qe7 Qxc5 28. Qe8+ Kh7 29. Qxf7 Qxc3 30. Rf1 Qc6 31. h3 Rg5 32. g3 Rf5 33. Qe7 Rd5 34. Re1 Qd7 0-1

[Event "Wch U16"]
[Site "Montevideo"]
[Date "2017.09.25"]
[Round "10"]
[White "Oviedo, Mathias"]
[Black "Arriola, Adrian"]
[Result "1-0"]
[ECO "B75"]
[WhiteElo "1556"]
[BlackElo "1509"]
[PlyCount "103"]
[EventDate "2017.09.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f3 Bg7 7. Be3 Nc6 8. Bc4 a6 9. Qd2 Bd7 10. 0-0-0 Rc8 11. a3 Ne5 12. Ba2 Nc4 13. Bxc4 Rxc4 14. Bh6 0-0 15. h4 b5 16. h5 e6 17. Nde2 Rc6 18. hxg6 fxg6 19. Bxg7 Kxg7 20. Nd4 Rb6 21. Nce2 e5 22. Nb3 Qc7 23. g4 Be6 24. Na1 Qc4 25. Nc3 a5 26. Qh6+ Kg8 27. g5 Nh5 28. Rxh5 gxh5 29. g6 Rb7 30. gxh7+ Rxh7 31. Rg1+ Bg4 32. Qe3 Rhf7 33. fxg4 Rf1+ 34. Rxf1 Qxf1+ 35. Nd1 Qf4 36. gxh5 Kh7 37. Kd2 Qh2+ 38. Qe2 Qxe2+ 39. Kxe2 Kh6 40. Nb3 Ra8 41. Ne3 Kxh5 42. Nf5 Ra6 43. Kd3 Kg5 44. Ne7 Kf4 45. Nd5+ Kf3 46. Nc7 Rb6 47. Nxa5 b4 48. axb4 Rxb4 49. Nc4 Rb7 50. Nd5 Rd7 51. b4 Rb7 52. Nxd6 1-0

[Event "Wch U16"]
[Site "Montevideo"]
[Date "2017.09.24"]
[Round "9"]
[White "Vester, Jordan"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1832"]
[BlackElo "1556"]
[PlyCount "73"]
[EventDate "2017.09.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. Nf3 Bg4 6. Be2 cxd4 7. cxd4 e6 8. 0-0 Bd6 9. h3 Bh5 10. Nc3 Qa5 11. d5 exd5 12. Nxd5 0-0-0 13. Qb3 Qxd5 14. Qxd5 Bh2+ 15. Nxh2 Rxd5 16. g4 Bg6 17. Bf3 Rd8 18. Bxc6 bxc6 19. Be3 Kb7 20. Nf3 Ne7 21. Rfd1 Nd5 22. Bd2 Rhe8 23. Nd4 Nb6 24. Ba5 Rd5 25. Nb3 Red8 26. Rxd5 Rxd5 27. Bc3 f6 28. Re1 Kc7 29. Nd4 Bf7 30. Nf5 Na4 31. Bb4 Rd7 32. b3 Nb2 33. Nxg7 Bxb3 34. Ne8+ Kc8 35. axb3 Nd3 36. Re4 Nxb4 37. Rxb4 1-0

[Event "Wch U16"]
[Site "Montevideo"]
[Date "2017.09.23"]
[Round "8"]
[White "Oviedo, Mathias"]
[Black "Hafstad, Leif"]
[Result "0-1"]
[ECO "C11"]
[WhiteElo "1556"]
[BlackElo "1808"]
[PlyCount "110"]
[EventDate "2017.09.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 Be7 8. Qd2 a6 9. 0-0-0 c4 10. Kb1 b5 11. Ne2 b4 12. c3 a5 13. Nc1 Qb6 14. Bf2 a4 15. Bxc4 bxc3 16. Qxc3 dxc4 17. d5 Qxf2 18. dxc6 Nb6 19. Qd4 Qxd4 20. Nxd4 Ba6 21. Nce2 0-0 22. h4 Rfd8 23. f5 exf5 24. Nxf5 Bf8 25. Nd6 Nc8 26. Nb7 Rxd1+ 27. Rxd1 Ne7 28. Nd8 Rc8 29. Rd6 Ng6 30. c7 Bxd6 31. exd6 Ne5 32. Nf4 Kf8 33. Nd5 Ke8 34. Nb6 Rxd8 35. cxd8Q+ Kxd8 36. Nxa4 Bb7 37. g3 Kd7 38. Nc3 Kxd6 39. Kc1 Kc5 40. Kd2 Kd4 41. Nb5+ Kc5 42. Nc3 Ng4 43. Na4+ Kd4 44. Nc3 Bc6 45. Ne2+ Ke4 46. Kc3 Bb7 47. Nd4 Ne3 48. Nb5 Bd5 49. a4 Bc6 50. Nd6+ Kd5 51. Nxf7 Bxa4 52. Kb4 Bb3 53. Ng5 h6 54. Nf3 Nf1 55. g4 Ke4 0-1

[Event "Wch U16"]
[Site "Montevideo"]
[Date "2017.09.22"]
[Round "6"]
[White "Oviedo, Mathias"]
[Black "Appoloni, Facundo Jose"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "1556"]
[BlackElo "1620"]
[PlyCount "49"]
[EventDate "2017.09.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. Bb3 Qe7 7. Nbd2 Be6 8. h3 h6 9. Nf1 Bb6 10. Ng3 0-0 11. 0-0 Rad8 12. d4 exd4 13. cxd4 Bxb3 14. axb3 Nxe4 15. Re1 d5 16. Nf5 Qf6 17. N3h4 Nxd4 18. Nxh6+ gxh6 19. Rxe4 dxe4 20. Qh5 Nf5 21. Nxf5 Rd1+ 22. Kh2 Rxc1 23. Nxh6+ Kg7 24. Nf5+ Kg8 25. Nh6+ 1/2-1/2

[Event "Wch U16"]
[Site "Montevideo"]
[Date "2017.09.22"]
[Round "7"]
[White "Reburdo, Rodrigo Hernan"]
[Black "Oviedo, Mathias"]
[Result "1/2-1/2"]
[ECO "B98"]
[WhiteElo "1537"]
[BlackElo "1556"]
[PlyCount "69"]
[EventDate "2017.09.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 8. Bh4 Be7 9. Qf3 Bd7 10. 0-0-0 Nc6 11. Be2 b5 12. a3 Qc7 13. g4 Nxd4 14. Rxd4 Qc5 15. Rhd1 g5 16. Bf2 Qc7 17. fxg5 hxg5 18. R4d2 e5 19. h3 Rb8 20. Be3 b4 21. axb4 Rxb4 22. Bxg5 Qa5 23. Rd3 Bb5 24. Bxf6 Bxd3 25. Bxh8 Bg5+ 26. Kb1 Rxb2+ 27. Kxb2 Qb4+ 28. Ka2 Qc4+ 29. Kb1 Qb3+ 30. Ka1 Qxc3+ 31. Ka2 Bc4+ 32. Kb1 Qb4+ 33. Ka1 Qa4+ 34. Kb2 Qb4+ 35. Ka1 1/2-1/2

[Event "Wch U16"]
[Site "Montevideo"]
[Date "2017.09.20"]
[Round "5"]
[White "Oviedo, Mathias"]
[Black "Aspiazu Sibri, Marlon Steven"]
[Result "0-1"]
[ECO "B95"]
[WhiteElo "1556"]
[BlackElo "2015"]
[PlyCount "66"]
[EventDate "2017.09.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Be2 Be7 8. Qd2 a6 9. 0-0 0-0 10. Kh1 Qc7 11. f4 h6 12. Bxf6 Bxf6 13. Nb3 b5 14. Rf3 Bb7 15. Rg3 Rfd8 16. Bd3 Kh8 17. f5 Ne5 18. Rf1 Qe7 19. Qe2 Rac8 20. Nd2 Rc5 21. fxe6 fxe6 22. Nb3 Rc7 23. Qh5 Rf8 24. Ne2 Bc6 25. Nf4 Be8 26. Qh3 Bg5 27. Nh5 Nxd3 28. Rxf8+ Qxf8 29. Rf3 Rf7 30. cxd3 g6 31. Rxf7 Qxf7 32. Ng3 Qf2 33. Nd2 Bxd2 0-1

[Event "Wch U16"]
[Site "Montevideo"]
[Date "2017.09.19"]
[Round "4"]
[White "Aguerre, Valentin"]
[Black "Oviedo, Mathias"]
[Result "0-1"]
[ECO "D05"]
[WhiteElo "1640"]
[BlackElo "1556"]
[PlyCount "110"]
[EventDate "2017.09.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c5 3. c3 Nf6 4. e3 e6 5. Bd3 Nc6 6. Nbd2 Bd7 7. Ne5 Bd6 8. f4 Qe7 9. Qc2 c4 10. Be2 Nh5 11. 0-0 g6 12. b4 b5 13. a4 Nxe5 14. fxe5 Bc7 15. axb5 Bxb5 16. Nb3 Ng7 17. e4 0-0 18. Nc5 a5 19. Ba3 Qh4 20. exd5 exd5 21. bxa5 Nf5 22. Qd2 f6 23. Bf3 Bc6 24. g3 Qh3 25. Bg2 Qg4 26. Bf3 Qh3 27. Bg2 Qg4 28. Rf4 Qh5 29. Ne6 fxe5 30. dxe5 Bxa5 31. Bxf8 Bb6+ 32. Bc5 Rxa1+ 33. Kf2 Bxc5+ 34. Nxc5 Rd1 35. Qe2 Qxh2 36. Rxf5 Qg1+ 37. Kf3 gxf5 38. Kf4 Re1 39. Qd2 Rd1 40. Qe2 Qe1 41. Qxe1 Rxe1 42. Kxf5 Rg1 43. Bf3 Rxg3 44. Kf4 Rg7 45. e6 Kf8 46. Ke5 Ke7 47. Nd7 Rg3 48. Kf4 Rxf3+ 49. Kxf3 Bxd7 50. exd7 Kxd7 51. Kf4 Ke6 52. Kg3 Ke5 53. Kf3 d4 54. Ke2 dxc3 55. Kd1 h5 0-1

[Event "Wch U16"]
[Site "Montevideo"]
[Date "2017.09.18"]
[Round "2"]
[White "Oviedo, Mathias"]
[Black "Gluckman, Paul"]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "1556"]
[BlackElo "1849"]
[PlyCount "119"]
[EventDate "2017.09.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 0-0 12. Nc2 Bg5 13. a4 bxa4 14. Rxa4 Ne7 15. Nce3 Bxe3 16. Nxe3 Bb7 17. Bd3 a5 18. 0-0 Bc6 19. Ra3 Kh8 20. Qe2 Ng6 21. g3 Qg5 22. Qg4 Qxg4 23. Nxg4 Ne7 24. Ne3 f5 25. f3 fxe4 26. fxe4 Rxf1+ 27. Kxf1 a4 28. Nc4 Nc8 29. Ke2 Kg8 30. Ke3 Kf8 31. Bc2 Ke7 32. b3 axb3 33. Rxa8 Bxa8 34. Bxb3 h6 35. h4 Bc6 36. Bd1 Bb5 37. Be2 Bxc4 38. Bxc4 Nb6 39. Bd5 Kf6 40. g4 g5 41. h5 Ke7 42. c4 Kd7 43. Kd3 Na4 44. Kc2 Kc7 45. Kb3 Nc5+ 46. Kc3 Kb6 47. Kc2 Nd7 48. Be6 Nf6 49. Bf5 Ne8 50. Be6 Nc7 51. Bd5 Na6 52. Kb3 Kc5 53. Kc3 Nb4 54. Bb7 Na2+ 55. Kb2 Nb4 56. Kc3 Nc6 57. Bxc6 Kxc6 58. Kb3 Kb6 59. Kb4 Kc6 60. Kb3 1/2-1/2

[Event "Wch U16"]
[Site "Montevideo"]
[Date "2017.09.18"]
[Round "3"]
[White "Romero Guimaray, Diego"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1940"]
[BlackElo "1556"]
[PlyCount "85"]
[EventDate "2017.09.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nc6 4. d4 cxd4 5. cxd4 Nf6 6. Nc3 e6 7. Bd3 Be7 8. 0-0 0-0 9. Re1 Qd7 10. a3 a5 11. h3 b6 12. Qe2 d5 13. e5 Ne8 14. Bg5 Nc7 15. Bxe7 Qxe7 16. Rac1 Bd7 17. Nd1 Ra7 18. Ne3 f6 19. exf6 Qxf6 20. Rxc6 Bxc6 21. Qc2 Be8 22. Bxh7+ Kh8 23. Ng4 Qf4 24. Re5 Nb5 25. Bg6 Bxg6 26. Qxg6 Rf5 27. Rxf5 Qxf5 28. Qe8+ Kh7 29. Qxb5 Rc7 30. Nge5 Qf4 31. g3 Qf5 32. Qd3 Qxd3 33. Nxd3 Kg6 34. Nfe5+ Kf6 35. Kg2 g5 36. g4 Ke7 37. Kg3 Rc2 38. f4 gxf4+ 39. Kxf4 Rc8 40. g5 Rf8+ 41. Kg4 Rg8 42. h4 a4 43. h5 1-0

[Event "Wch U16"]
[Site "Montevideo"]
[Date "2017.09.17"]
[Round "1"]
[White "Agibileg, Uurtsaikh"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2133"]
[BlackElo "1556"]
[PlyCount "51"]
[EventDate "2017.09.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URU"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. cxd5 exd5 7. e3 Bd6 8. Bd3 0-0 9. Qc2 Qc7 10. 0-0 h6 11. Bh4 b6 12. Rac1 Bb7 13. Bf5 Nb8 14. Bxf6 gxf6 15. Nxd5 Qd8 16. Nc3 Kh8 17. Qe4 Rg8 18. Qh4 Bf8 19. Ne5 Rg7 20. Ng4 Be7 21. Nxh6 Qf8 22. Nxf7+ Kg8 23. Nh6+ Kh8 24. Ng4+ Kg8 25. Be6+ Rf7 26. Nh6+ 1-0

[Event "URU-chT Provinces"]
[Site "Montevideo"]
[Date "2017.08.27"]
[Round "5.2"]
[White "Oviedo, Mathias"]
[Black "Bonilla, Fernando"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "1576"]
[BlackElo "1727"]
[PlyCount "66"]
[EventDate "2017.08.25"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Colonia Nueva Helvecia"]
[BlackTeam "Montevideo VII"]
[WhiteTeamCountry "URU"]
[BlackTeamCountry "URU"]

1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Ne5 Qd6 8. d4 Nd7 9. Bf4 Nxe5 10. Bxe5 Qb4+ 11. c3 Qxb2 12. Qc1 Qxc1+ 13. Rxc1 Nf6 14. Be2 Nd7 15. Bf4 e6 16. a4 Ba3 17. Rd1 Bb2 18. Kd2 Nb6 19. Bh5 Bxc3+ 20. Kxc3 Nd5+ 21. Kc4 Nxf4 22. Bxg6 Nxg6 23. Ne4 Ke7 24. g3 Rhd8 25. a5 b6 26. axb6 axb6 27. f4 Ra4+ 28. Kc3 f5 29. h5 Nf8 30. Nf2 Ra3+ 31. Kc4 Rda8 32. Nd3 R8a4+ 33. Nb4 b5+ 0-1

[Event "URU-chT Provinces"]
[Site "Montevideo"]
[Date "2017.08.26"]
[Round "4.2"]
[White "Gandara, Jorge"]
[Black "Oviedo, Mathias"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "1454"]
[BlackElo "1576"]
[PlyCount "66"]
[EventDate "2017.08.25"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Maldonado III"]
[BlackTeam "Colonia Nueva Helvecia"]
[WhiteTeamCountry "URU"]
[BlackTeamCountry "URU"]

1. e4 c5 2. Nf3 d6 3. g3 Nf6 4. d3 e5 5. Bg2 Be7 6. 0-0 0-0 7. Re1 Bg4 8. Nbd2 Nc6 9. c3 b5 10. h3 Bh5 11. g4 Bg6 12. Nh4 Kh8 13. Ndf3 b4 14. Nxg6+ fxg6 15. Ng5 Qa5 16. Qb3 h6 17. Nf3 Rab8 18. Bd2 bxc3 19. Qxc3 Qb5 20. Reb1 Nb4 21. Bf1 Nxg4 22. Kg2 Qd7 23. Be2 Nf6 24. Rh1 Nh5 25. Rag1 Nf4+ 26. Kf1 g5 27. Bxf4 Rxf4 28. Rg2 Nc6 29. Ng1 d5 30. exd5 Qxd5 31. Rhh2 Qxa2 32. Rg3 Qxb2 33. Qc4 Rxc4 0-1

[Event "URU-chT Provinces"]
[Site "Montevideo"]
[Date "2017.08.26"]
[Round "3.2"]
[White "Oviedo, Mathias"]
[Black "Savino, Horacio"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1576"]
[BlackElo "1846"]
[PlyCount "58"]
[EventDate "2017.08.25"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Colonia Nueva Helvecia"]
[BlackTeam "Montevideo Vladivostok"]
[WhiteTeamCountry "URU"]
[BlackTeamCountry "URU"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 cxd4 7. cxd4 Bb4+ 8. Nc3 f6 9. Be3 fxe5 10. dxe5 Qc7 11. Bb5 Nge7 12. Qa4 0-0 13. Bxc6 Nxc6 14. 0-0 Bxc3 15. bxc3 Nxe5 16. Ng5 h6 17. Nh3 Nc4 18. Bd4 e5 19. Be3 Bxh3 20. gxh3 Nxe3 21. fxe3 Qxc3 22. Rfe1 Rf3 23. Rac1 Qd2 24. Qg4 Raf8 25. Qe6+ Kh8 26. Qxe5 Qf2+ 27. Kh1 R3f5 28. Qd4 Qf3+ 29. Kg1 Rg5+ 0-1

[Event "URU-chT Provinces"]
[Site "Montevideo"]
[Date "2017.08.25"]
[Round "2.2"]
[White "De los Reyes, Mauro"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "B98"]
[WhiteElo "1864"]
[BlackElo "1576"]
[PlyCount "89"]
[EventDate "2017.08.25"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Canelones Pando"]
[BlackTeam "Colonia Nueva Helvecia"]
[WhiteTeamCountry "URU"]
[BlackTeamCountry "URU"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 0-0 9. 0-0-0 Nbd7 10. g4 b5 11. Nc6 Qe8 12. Nxe7+ Qxe7 13. e5 dxe5 14. Qxa8 Nc5 15. Rg1 Bb7 16. Qa7 Qc7 17. b4 Ncd7 18. Rxd7 Nxd7 19. Qe3 exf4 20. Bxf4 e5 21. Bg3 Rc8 22. Be1 Nf6 23. Bd3 e4 24. Nxe4 Bxe4 25. Bxe4 Re8 26. Bxh7+ Kxh7 27. Qd3+ Kg8 28. Bg3 Qe7 29. g5 Nh5 30. Bd6 Qe6 31. g6 Rd8 32. gxf7+ Qxf7 33. Qg6 Qf3 34. Qe6+ Kh8 35. Qe7 Rc8 36. Bc5 Qf4+ 37. Kb1 Qxh2 38. Qe4 Qf4 39. Qb7 Qc7 40. Qd5 Nf6 41. Rh1+ Nh7 42. Qe4 g5 43. Bd4+ Kg8 44. Qg6+ Kf8 45. Rxh7 1-0

[Event "URU-chT Provinces"]
[Site "Montevideo"]
[Date "2017.08.25"]
[Round "1.2"]
[White "Oviedo, Mathias"]
[Black "Busca, Joaquin"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1576"]
[BlackElo "1805"]
[PlyCount "48"]
[EventDate "2017.08.25"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Colonia Nueva Helvecia"]
[BlackTeam "Montevideo VIII"]
[WhiteTeamCountry "URU"]
[BlackTeamCountry "URU"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bc4 Bg7 5. Bd2 0-0 6. Qe2 c6 7. Nf3 b5 8. Bb3 a5 9. a3 Nbd7 10. 0-0 Ba6 11. Nd1 b4 12. Bc4 Bxc4 13. Qxc4 bxa3 14. Rxa3 Nxe4 15. Be3 c5 16. dxc5 Nexc5 17. Bd4 e5 18. Bc3 a4 19. Ne3 Nb6 20. Qb5 e4 21. Nd4 Qc7 22. Ba5 Rxa5 23. Qxa5 Bxd4 24. Nc4 Nb7 0-1

[Event "South America-ch U16 13th"]
[Site "Santiago de Chile"]
[Date "2016.12.03"]
[Round "4"]
[White "Rios Campos, Victor Orlando"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1422"]
[BlackElo "1532"]
[PlyCount "75"]
[EventDate "2016.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHI"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 Bf5 4. e3 Nbd7 5. c4 c6 6. Bd3 Bg4 7. h3 Bh5 8. Nbd2 e6 9. 0-0 h6 10. Qc2 dxc4 11. Bxc4 b5 12. Bd3 Qb6 13. g4 g5 14. Bh2 Bxg4 15. hxg4 Nxg4 16. Bg3 Be7 17. Nh2 Nxh2 18. Bxh2 g4 19. Ne4 f5 20. Nd6+ Bxd6 21. Bxd6 h5 22. Bxf5 exf5 23. Qxf5 0-0-0 24. Rfc1 Rde8 25. d5 Rhf8 26. Bxf8 Rxf8 27. Qxf8+ Nxf8 28. Rxc6+ Qxc6 29. dxc6 Kc7 30. Rc1 Ne6 31. Kg2 h4 32. f3 g3 33. Rh1 Kxc6 34. Rxh4 Ng7 35. Rg4 Nf5 36. e4 Ne3+ 37. Kxg3 Nxg4 38. Kxg4 1-0

[Event "South America-ch U16 13th"]
[Site "Santiago de Chile"]
[Date "2016.12.02"]
[Round "2"]
[White "Fuenzalida Moya, Matias Benjamin"]
[Black "Oviedo, Mathias"]
[Result "0-1"]
[ECO "B95"]
[BlackElo "1532"]
[PlyCount "94"]
[EventDate "2016.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHI"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f3 Be7 8. Qd2 0-0 9. 0-0-0 e5 10. Nb3 Be6 11. Bxf6 gxf6 12. Nd5 Bxd5 13. Qxd5 Qc7 14. Rd3 Nc6 15. Rc3 Qb8 16. a3 a5 17. Bb5 Nd8 18. Bd7 Qa7 19. Rf1 b6 20. Bf5 Qb7 21. Qd2 Kg7 22. Qf2 Rh8 23. h4 Kf8 24. Rh1 Nc6 25. Rh3 a4 26. Nd2 Nd4 27. Bg4 h5 28. Bf5 Qa6 29. Rd3 Nxf5 30. exf5 Rc8 31. f4 Rg8 32. Rhg3 Rxg3 33. Rxg3 Qb5 34. Qf3 Qc5 35. c3 exf4 36. Qxf4 Qe5 37. Qh6+ Ke8 38. Rg8+ Kd7 39. Rxc8 Kxc8 40. Qxh5 Kd7 41. Qh7 Ke8 42. g4 Qf4 43. Qg8+ Bf8 44. h5 Qg5 45. Qxg5 fxg5 46. Ne4 Ke7 47. Nxg5 Bh6 0-1

[Event "South America-ch U16 13th"]
[Site "Santiago de Chile"]
[Date "2016.12.01"]
[Round "1"]
[White "Oviedo, Mathias"]
[Black "Gimenez Aguirre, Ismael Alejo"]
[Result "0-1"]
[ECO "B34"]
[WhiteElo "1532"]
[BlackElo "2098"]
[PlyCount "116"]
[EventDate "2016.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHI"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Be3 Nc6 6. Qd2 Nf6 7. Nc3 0-0 8. f3 d5 9. 0-0-0 Nxd4 10. Bxd4 dxe4 11. fxe4 Be6 12. Kb1 Qb8 13. Be2 Rd8 14. Qe3 Ng4 15. Qg1 Rxd4 16. Rxd4 Qe5 17. Rd1 Qa5 18. Bxg4 Bxg4 19. Rd5 Qa6 20. Qf1 Qc6 21. Qd3 Qc8 22. Qg3 h5 23. h3 Be6 24. Rdd1 Qc4 25. Qd3 Qb4 26. a3 Qb6 27. Qb5 Bxc3 28. Qxb6 axb6 29. bxc3 Rxa3 30. Kb2 Ra2+ 31. Kc1 Ra4 32. Rhe1 Kg7 33. Kd2 Bd7 34. Rb1 b5 35. Rb4 Bc6 36. Ke3 Ra2 37. Kd3 Kf6 38. Rf1+ Ke6 39. Rf2 f6 40. Ke3 Ke5 41. c4 Ra3+ 42. Rb3 Rxb3+ 43. cxb3 bxc4 44. bxc4 Bxe4 45. Rd2 h4 46. Rd7 e6 47. Rd2 f5 48. c5 g5 49. Kf2 Kf4 50. Re2 Bc6 51. Rxe6 g4 52. hxg4 fxg4 53. Re3 g3+ 54. Ke2 Bxg2 55. Re7 Bf3+ 56. Kf1 h3 57. Rf7+ Ke3 58. Re7+ Be4 0-1

[Event "URU-chT Interclubes Serie B"]
[Site "Montevideo"]
[Date "2016.09.25"]
[Round "5.91"]
[White "Pelaez, Diego"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "D13"]
[WhiteElo "1687"]
[BlackElo "1525"]
[PlyCount "71"]
[EventDate "2016.09.23"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 Bf5 5. cxd5 cxd5 6. Qb3 b6 7. g3 e6 8. Bg2 Be7 9. 0-0 0-0 10. Bf4 Nc6 11. Rac1 Rc8 12. Rfd1 Na5 13. Qb5 Ra8 14. e3 Nc4 15. a3 a6 16. Qb3 Na5 17. Qa2 Ne4 18. Nxe4 Bxe4 19. Bc7 Qd7 20. Bxb6 Nc4 21. Ne5 Nxe5 22. Bxe4 Nc4 23. Rxc4 dxe4 24. Rc7 Qd6 25. Rdc1 Bd8 26. R7c6 Qe7 27. Bc5 Qd7 28. Bxf8 Kxf8 29. b4 Qb7 30. d5 a5 31. bxa5 exd5 32. Qxd5 Bxa5 33. Qc5+ Qe7 34. Rc8+ Rxc8 35. Qxe7+ Kxe7 36. Rxc8 1-0

[Event "URU-chT Interclubes Serie B"]
[Site "Montevideo"]
[Date "2016.09.24"]
[Round "3.61"]
[White "Bertucci, Santiago"]
[Black "Oviedo, Mathias"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "1941"]
[BlackElo "1525"]
[PlyCount "60"]
[EventDate "2016.09.23"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be7 8. Be3 Nbd7 9. Qd2 b5 10. 0-0-0 Bb7 11. h4 Qc7 12. h5 Rc8 13. g4 h6 14. g5 hxg5 15. Bxg5 Rxh5 16. Rxh5 Nxh5 17. Bxe7 Kxe7 18. Kb1 Nf4 19. Rc1 Nf6 20. Ne2 N6h5 21. Nxf4 Nxf4 22. c4 Qb6 23. Qb4 Qe3 24. c5 Kd7 25. Rd1 Qxf3 26. Rxd6+ Ke8 27. Bxb5+ axb5 28. Qxb5+ Bc6 29. Rxc6 Qxe4+ 30. Kc1 Qxc6 0-1

[Event "URU-chT Interclubes Serie B"]
[Site "Montevideo"]
[Date "2016.09.24"]
[Round "2.101"]
[White "Oviedo, Mathias"]
[Black "Podesta, Sofia"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1525"]
[PlyCount "77"]
[EventDate "2016.09.23"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 d6 4. c3 Bg4 5. Qb3 Qd7 6. Be2 0-0-0 7. d3 Nf6 8. Bg5 Be7 9. Nbd2 Qe6 10. Qxe6+ Bxe6 11. a4 h6 12. Bxf6 Bxf6 13. b4 d5 14. a5 a6 15. 0-0 g5 16. Rfb1 dxe4 17. Nxe4 Be7 18. b5 axb5 19. Rxb5 Na7 20. Rb2 g4 21. Nxe5 h5 22. Rab1 Bd5 23. c4 Bc6 24. Nxf7 Ba3 25. Rb3 Be7 26. Nxh8 Rxh8 27. Ng3 h4 28. Nf5 Bf6 29. Bxg4 Bd7 30. Ne3 Bxg4 31. Nxg4 Bg7 32. Rxb7 Nc6 33. a6 Bd4 34. Ne3 Re8 35. Nd5 Bc5 36. Rxc7+ Kd8 37. Rxc6 Ba7 38. Kf1 Rf8 39. f3 1-0

[Event "URU-chT Interclubes Serie B"]
[Site "Montevideo"]
[Date "2016.09.24"]
[Round "4.81"]
[White "Oviedo, Mathias"]
[Black "Tardugno, Mathias"]
[Result "1/2-1/2"]
[ECO "B72"]
[WhiteElo "1525"]
[PlyCount "104"]
[EventDate "2016.09.23"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nf6 8. Be2 Bd7 9. Qd2 Nxd4 10. Bxd4 0-0 11. 0-0-0 a6 12. g4 b5 13. h4 b4 14. Nb1 a5 15. h5 Rc8 16. hxg6 fxg6 17. g5 Nh5 18. Bxg7 Nxg7 19. Rh2 Be6 20. b3 Qb6 21. Bc4 Rxc4 22. bxc4 Rxf3 23. Rdh1 Nh5 24. Qg2 Qe3+ 25. Nd2 Rg3 26. Qf1 Rxg5 27. Re2 Qc3 28. Rf2 Qa1+ 29. Nb1 Qg7 30. c5 Rxc5 31. Qa6 Nf6 32. Re1 Bxa2 33. Nd2 Qf8 34. Nf3 b3 35. e5 Ng4 36. Rd2 Rxc2+ 37. Rxc2 bxc2 38. Qxa5 Qf4+ 39. Nd2 Bf7 40. Qd8+ Kg7 41. e6 Bg8 42. Qxe7+ Kh8 43. Rf1 Nf2 44. Qa7 Nd3+ 45. Kxc2 Nb4+ 46. Kd1 Qg4+ 47. Rf3 Bxe6 48. Qa1+ Kg8 49. Qf6 h5 50. Qf8+ Kh7 51. Qe7+ Kh6 52. Qf8+ Kh7 1/2-1/2

[Event "URU-chT Interclubes Serie B"]
[Site "Montevideo"]
[Date "2016.09.23"]
[Round "1.61"]
[White "Chamlian, Aram"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1744"]
[BlackElo "1525"]
[PlyCount "69"]
[EventDate "2016.09.23"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 Nd7 4. Bg2 e6 5. d3 Be7 6. f4 Ngf6 7. Nf3 a6 8. 0-0 Qc7 9. h3 0-0 10. Be3 d5 11. Bf2 d4 12. Ne2 b5 13. e5 Nd5 14. Qd2 Bb7 15. g4 f6 16. Nfxd4 cxd4 17. Nxd4 Nxf4 18. Qxf4 fxe5 19. Nxe6 exf4 20. Nxc7 Bxg2 21. Kxg2 Rac8 22. Nd5 f3+ 23. Kg1 Bd6 24. c3 Ne5 25. d4 Nc4 26. b3 Nd2 27. Rfe1 Rfe8 28. Rad1 Ne4 29. Re3 Nxf2 30. Kxf2 Rxe3 31. Kxe3 Rf8 32. Rf1 Re8+ 33. Kxf3 Rf8+ 34. Ke2 Re8+ 35. Kd3 1-0

[Event "Pan American-ch U16 27th"]
[Site "Montevideo"]
[Date "2016.07.31"]
[Round "9"]
[White "Oviedo, Mathias"]
[Black "Chaluja, Jose Antonio"]
[Result "0-1"]
[ECO "B76"]
[WhiteElo "1527"]
[BlackElo "1864"]
[PlyCount "50"]
[EventDate "2016.07.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. 0-0-0 Nxd4 10. Bxd4 Be6 11. Kb1 Qc7 12. g4 Rfc8 13. h4 Qa5 14. a3 Bc4 15. Bxc4 Rxc4 16. Be3 Rac8 17. Ka2 Nxg4 18. fxg4 Bxc3 19. bxc3 Rxc3 20. Kb1 Qb5+ 21. Kc1 Qb3 22. Rh2 Qxa3+ 23. Kb1 R8c4 24. Qxc3 Qxc3 25. Bh6 Ra4 0-1

[Event "Pan American-ch U16 27th"]
[Site "Montevideo"]
[Date "2016.07.30"]
[Round "8"]
[White "Oviedo, Mathias"]
[Black "Reburdo, Rodrigo Hernan"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "1527"]
[BlackElo "1470"]
[PlyCount "32"]
[EventDate "2016.07.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be7 8. Be2 Be6 9. 0-0 0-0 10. f4 Qc7 11. Bf3 Rd8 12. Qe2 Bc4 13. Qf2 Bxf1 14. Bb6 Qc6 15. Bxd8 Bxd8 16. Rxf1 Bb6 0-1

[Event "Pan American-ch U16 27th"]
[Site "Montevideo"]
[Date "2016.07.29"]
[Round "7"]
[White "Appoloni, Juan"]
[Black "Oviedo, Mathias"]
[Result "1/2-1/2"]
[ECO "D53"]
[WhiteElo "1564"]
[BlackElo "1527"]
[PlyCount "42"]
[EventDate "2016.07.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Bg5 e6 5. Nc3 Nbd7 6. e3 Be7 7. Be2 dxc4 8. Bxc4 b5 9. Be2 Bb7 10. 0-0 0-0 11. a3 a6 12. b4 a5 13. Qb3 a4 14. Qc2 Qc7 15. Ne1 e5 16. Nd3 Rad8 17. Nc5 Nxc5 18. dxc5 Nd5 19. Bxe7 Qxe7 20. Ne4 Nf6 21. Nxf6+ Qxf6 1/2-1/2

[Event "Pan American-ch U16 27th"]
[Site "Montevideo"]
[Date "2016.07.28"]
[Round "5"]
[White "Aguero Arce, Matias"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "D52"]
[WhiteElo "2079"]
[BlackElo "1527"]
[PlyCount "71"]
[EventDate "2016.07.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 dxc4 7. Bxc4 b5 8. Bd3 Be7 9. 0-0 Bb7 10. Rc1 0-0 11. Qe2 a6 12. Rfd1 Nd5 13. Ne4 Rc8 14. Nd6 Bxg5 15. Nxb7 Qe7 16. Nxg5 Qxg5 17. Nc5 Nxc5 18. Rxc5 Qd8 19. Rdc1 Qb6 20. Qh5 g6 21. Qg4 Rc7 22. h4 Kh8 23. Qg5 f5 24. h5 Rg8 25. Rxd5 cxd5 26. Qf6+ Rgg7 27. Rxc7 Qxc7 28. h6 Qf7 29. hxg7+ Qxg7 30. Qxe6 Qb7 31. Be2 a5 32. Bf3 Qg7 33. Bxd5 h5 34. Qe8+ Kh7 35. Bf7 Kh6 36. d5 1-0

[Event "Pan American-ch U16 27th"]
[Site "Montevideo"]
[Date "2016.07.28"]
[Round "6"]
[White "Oviedo, Mathias"]
[Black "Wilberger, Marcelo"]
[Result "1/2-1/2"]
[ECO "B92"]
[WhiteElo "1527"]
[BlackElo "1480"]
[PlyCount "33"]
[EventDate "2016.07.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be7 8. Be2 Be6 9. 0-0 0-0 10. f4 exf4 11. Bxf4 Nc6 12. Bf3 Ne5 13. Nd5 Nxf3+ 14. Qxf3 Bxd5 15. exd5 Qc7 16. Rac1 Qc4 17. Rfd1 1/2-1/2

[Event "Pan American-ch U16 27th"]
[Site "Montevideo"]
[Date "2016.07.27"]
[Round "4"]
[White "Bolanos, Fernando"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "B55"]
[WhiteElo "1995"]
[BlackElo "1527"]
[PlyCount "47"]
[EventDate "2016.07.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 a6 6. c4 e5 7. Nc2 Nbd7 8. Be3 Be7 9. Nc3 Nc5 10. Be2 Be6 11. Qd2 0-0 12. 0-0 Qc7 13. Rac1 Rfd8 14. Rfd1 Rac8 15. b3 Nfd7 16. b4 Nxe4 17. fxe4 Bxc4 18. Bxc4 Qxc4 19. Nd5 Bf6 20. Bg5 Bxg5 21. Qxg5 Re8 22. Ne7+ Kf8 23. Nxc8 Rxc8 24. Ne1 1-0

[Event "Pan American-ch U16 27th"]
[Site "Montevideo"]
[Date "2016.07.26"]
[Round "3"]
[White "Oviedo, Mathias"]
[Black "Anza, Vicenzo"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1527"]
[BlackElo "1479"]
[PlyCount "62"]
[EventDate "2016.07.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. Nf3 Qxd5 5. Nc3 Qh5 6. Be2 e6 7. h3 Bd6 8. Rf1 Bxh3 9. Rh1 Qg4 10. gxh3 Qg2 11. Rf1 Qxh3 12. Be3 Nc6 13. Qd3 0-0-0 14. Ng5 Qg2 15. Nxf7 Nb4 16. Qd2 Qg6 17. Nxh8 Nxc2+ 18. Kd1 Nxe3+ 19. Qxe3 Rxh8 20. Nb5 Rd8 21. Qxe6+ Kb8 22. Nxd6 Rxd6 23. Qc4 c5 24. Ke1 cxd4 25. Qd3 Qh6 26. Qd2 Qg6 27. Qf4 Nd7 28. Bd3 Qe8+ 29. Kd2 Ne5 30. Rfe1 Re6 31. Rxe5 Rxe5 1-0

[Event "Pan American-ch U16 27th"]
[Site "Montevideo"]
[Date "2016.07.26"]
[Round "2"]
[White "Torres Cueto, Jesus Marcial"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2075"]
[BlackElo "1527"]
[PlyCount "79"]
[EventDate "2016.07.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 Nf6 4. Bg2 e5 5. d3 Be7 6. h3 Nc6 7. Be3 a6 8. f4 b5 9. a3 Bb7 10. f5 Nd4 11. Bf2 0-0 12. g4 Ne8 13. Nge2 Qa5 14. 0-0 Nc7 15. Ng3 Bh4 16. Qd2 h6 17. Rac1 Rad8 18. Nh5 Bxf2+ 19. Rxf2 Kh7 20. g5 Ne8 21. g6+ Kg8 22. gxf7+ Rxf7 23. Rcf1 Qc7 24. Nd1 Nf6 25. Nxf6+ Rxf6 26. Ne3 Rdf8 27. c3 Nb3 28. Qd1 c4 29. Ng4 R6f7 30. f6 h5 31. fxg7 Rxf2 32. gxf8Q+ Rxf8 33. Nf6+ Rxf6 34. Rxf6 Qg7 35. Rxd6 Qg5 36. Kh1 Qc1 37. Qxc1 Nxc1 38. dxc4 bxc4 39. Rb6 Ba8 40. Rb8+ 1-0

[Event "Pan American-ch U16 27th"]
[Site "Montevideo"]
[Date "2016.07.25"]
[Round "1"]
[White "Oviedo, Mathias"]
[Black "Villca, Julian"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "1527"]
[BlackElo "2124"]
[PlyCount "50"]
[EventDate "2016.07.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 a5 6. a4 0-0 7. Bg5 h6 8. Bh4 d6 9. Nbd2 Qe7 10. 0-0 Be6 11. Re1 Rae8 12. Qb3 g5 13. Bg3 Nh5 14. Bxe6 fxe6 15. Qxb7 Nd8 16. Qb3 g4 17. d4 Nxg3 18. hxg3 Ba7 19. Nh2 exd4 20. cxd4 Bxd4 21. Rf1 Qg5 22. Rad1 Rf7 23. Nc4 e5 24. Qc2 Ref8 25. Qe2 Rxf2 0-1

[Event "URU-ch Amateur"]
[Site "Colonia del Sacramento"]
[Date "2016.07.18"]
[Round "7.19"]
[White "Ferreira, Damian"]
[Black "Oviedo, Mathias"]
[Result "1/2-1/2"]
[ECO "D51"]
[BlackElo "1527"]
[PlyCount "39"]
[EventDate "2016.07.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Bg5 e6 5. e3 Be7 6. Nf3 Nbd7 7. cxd5 cxd5 8. Bd3 0-0 9. 0-0 a6 10. Bc2 b5 11. Qd3 g6 12. Ne5 Nxe5 13. dxe5 Nd7 14. Bxe7 Qxe7 15. f4 Qc5 16. Qd4 b4 17. Qxc5 Nxc5 18. Na4 Nd7 19. b3 Bb7 20. Rac1 1/2-1/2

[Event "URU-ch Amateur"]
[Site "Colonia del Sacramento"]
[Date "2016.07.18"]
[Round "6.20"]
[White "Oviedo, Mathias"]
[Black "Rodriguez Delfino, Tiago"]
[Result "1-0"]
[ECO "C17"]
[WhiteElo "1527"]
[BlackElo "1306"]
[PlyCount "49"]
[EventDate "2016.07.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Nge2 cxd4 6. Qxd4 Nc6 7. Qg4 g6 8. Bd2 Bxc3 9. Bxc3 Nh6 10. Qf4 Nf5 11. 0-0-0 0-0 12. g4 Ng7 13. h4 b5 14. h5 Ne7 15. Nd4 a6 16. hxg6 fxg6 17. Qh6 Rxf2 18. Qxh7+ Kf8 19. Bb4 Kf7 20. Bd3 Bb7 21. Rdf1 Rxf1+ 22. Rxf1+ Nef5 23. gxf5 exf5 24. Nxf5 gxf5 25. Rxf5+ 1-0

[Event "URU-ch Amateur"]
[Site "Colonia del Sacramento"]
[Date "2016.07.17"]
[Round "4.14"]
[White "Oviedo, Mathias"]
[Black "Larrea, Osvaldo"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1527"]
[BlackElo "1805"]
[PlyCount "74"]
[EventDate "2016.07.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 c5 4. Be3 Nc6 5. c3 cxd4 6. cxd4 d6 7. Bb5 Bd7 8. Nc3 a6 9. Ba4 b5 10. Bb3 Nf6 11. Qc2 Rc8 12. Qe2 b4 13. Nd5 Nxe4 14. Qd3 Nf6 15. Qxa6 Nxd5 16. Bxd5 Qa5 17. Qxa5 Nxa5 18. 0-0 e6 19. Be4 Nc4 20. b3 Nxe3 21. fxe3 0-0 22. Rac1 Bh6 23. Rxc8 Bxe3+ 24. Kh1 Rxc8 25. d5 e5 26. Re1 Rc1 27. Rxc1 Bxc1 28. Ne1 f5 29. Bd3 Bd2 30. Nc2 e4 31. Bc4 Bc3 32. a3 bxa3 33. Nxa3 Kf7 34. Bb5 Bxb5 35. Nxb5 Bb4 36. Kg1 Kf6 37. Na7 Bc5+ 0-1

[Event "URU-ch Amateur"]
[Site "Colonia del Sacramento"]
[Date "2016.07.17"]
[Round "5.18"]
[White "Rios, Juan Pablo"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "A06"]
[BlackElo "1527"]
[PlyCount "78"]
[EventDate "2016.07.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nc6 2. b3 d5 3. Bb2 Bf5 4. e3 e6 5. Bb5 a6 6. Bxc6+ bxc6 7. Nd4 c5 8. Nxf5 exf5 9. Qf3 Qd7 10. c4 c6 11. 0-0 Rd8 12. Na3 Qe6 13. Rad1 Nf6 14. Qg3 g6 15. Qc7 Be7 16. Qa5 0-0 17. Qc3 d4 18. Qd3 Ne4 19. f3 Nf6 20. Rfe1 Qd6 21. Nc2 dxe3 22. Qxd6 Rxd6 23. Nxe3 Rfd8 24. Nxf5 Kf8 25. Nxe7 Re8 26. Nxg6+ hxg6 27. Rxe8+ Nxe8 28. Ba3 Kg8 29. Bxc5 Re6 30. Kf2 Nf6 31. Re1 Rxe1 32. Kxe1 Nh5 33. Bd6 f5 34. Be5 Kf7 35. g4 Nf6 36. Bxf6 Kxf6 37. Ke2 Ke5 38. gxf5 gxf5 39. h4 Kf4 1-0

[Event "URU-ch Amateur"]
[Site "Colonia del Sacramento"]
[Date "2016.07.16"]
[Round "3.14"]
[White "Iduate, Guillermo"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "B24"]
[WhiteElo "1744"]
[BlackElo "1527"]
[PlyCount "77"]
[EventDate "2016.07.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 Nf6 4. Bg2 Nc6 5. f4 e5 6. d3 Bg4 7. Nf3 Nd4 8. 0-0 Be7 9. Be3 exf4 10. Bxf4 d5 11. exd5 Nxd5 12. Nxd5 Qxd5 13. c3 Nxf3+ 14. Bxf3 Bxf3 15. Qxf3 Qxf3 16. Rxf3 0-0 17. Re1 Bf6 18. Bd6 Rfc8 19. Be7 Re8 20. Rfe3 Bxe7 21. Rxe7 Rxe7 22. Rxe7 b6 23. Kf2 g6 24. g4 Kg7 25. g5 Kf8 26. Rc7 Ke8 27. Ke3 Kf8 28. d4 cxd4+ 29. cxd4 Re8+ 30. Kd3 Re7 31. Rc6 Rd7 32. Kc4 Ke7 33. Rc8 Rd8 34. Rxd8 Kxd8 35. Kb5 Kc7 36. Ka6 Kb8 37. h3 Ka8 38. d5 Kb8 39. d6 1-0

[Event "URU-ch Amateur"]
[Site "Colonia del Sacramento"]
[Date "2016.07.16"]
[Round "2.12"]
[White "Oviedo, Mathias"]
[Black "Lopez, Aldi"]
[Result "1-0"]
[ECO "B05"]
[WhiteElo "1527"]
[BlackElo "2001"]
[PlyCount "102"]
[EventDate "2016.07.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Nf3 Bg4 7. Nbd2 Nc6 8. Be2 e6 9. 0-0 Be7 10. a3 Bf6 11. d5 exd5 12. cxd5 Nxd5 13. Ne4 Be6 14. Bc4 Nce7 15. Nfg5 Bxg5 16. Bxg5 Qd7 17. Bxe7 Nxe7 18. Bb5 Nc6 19. Nxd6+ Ke7 20. Ne4 Qxd1 21. Raxd1 Rac8 22. Rfe1 Rhd8 23. Rxd8 Nxd8 24. Nc3 Rc5 25. Ba4 Nc6 26. Ne4 Ra5 27. Bc2 h6 28. Nc3 g5 29. Re3 Nd4 30. Be4 Nf5 31. Rd3 Re5 32. f3 Nd6 33. Kf2 Nxe4+ 34. Nxe4 Bf5 35. Re3 Bxe4 36. Rxe4 Rxe4 37. fxe4 Kd6 38. Ke3 Ke5 39. h3 b5 40. g3 a5 41. b3 h5 42. h4 gxh4 43. gxh4 b4 44. a4 f6 45. Kf3 Kd4 46. Kf4 Kd3 47. Kf5 Ke3 48. Kxf6 Kxe4 49. Kg5 Ke5 50. Kxh5 Kf5 51. Kh6 Kf6 1-0

[Event "URU-ch Amateur"]
[Site "Colonia del Sacramento"]
[Date "2016.07.15"]
[Round "1.9"]
[White "Barandiaran, Gabriel"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "B92"]
[WhiteElo "1828"]
[BlackElo "1527"]
[PlyCount "65"]
[EventDate "2016.07.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. Be3 Be6 9. Qd2 Qc7 10. 0-0-0 b5 11. Kb1 0-0 12. f3 d5 13. exd5 Rd8 14. Bd3 Nxd5 15. Nxd5 Rxd5 16. Qf2 Rd7 17. Bb6 Qc6 18. Na5 Qd5 19. Bxh7+ Kxh7 20. Rxd5 Bxd5 21. Bc5 Bf6 22. Bb4 Nc6 23. Nxc6 Bxc6 24. Bc3 Rad8 25. a3 Bd5 26. b3 Be7 27. Bxe5 Bxa3 28. Bb2 Bxb2 29. Kxb2 Be6 30. Re1 a5 31. Re5 a4 32. Qh4+ Kg8 33. Rh5 1-0

[Event "URU-ch U20"]
[Site "Nueva Helvecia"]
[Date "2016.04.18"]
[Round "6"]
[White "Marziotte, Andres"]
[Black "Oviedo, Mathias"]
[Result "0-1"]
[ECO "C50"]
[BlackElo "1521"]
[PlyCount "94"]
[EventDate "2016.04.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "URU"]
[SourceTitle "CBM 171 Extra"]
[Source "ChessBase"]
[SourceDate "2016.04.26"]
[SourceVersion "1"]
[SourceVersionDate "2016.04.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Bc4 d6 5. h3 Nf6 6. 0-0 Bd7 7. d3 Qe7 8. Bg5 Be6 9. Bxe6 fxe6 10. Bxf6 Qxf6 11. Nb5 0-0-0 12. c3 h5 13. d4 exd4 14. cxd4 Bb6 15. d5 exd5 16. exd5 Ne7 17. Rc1 a6 18. Nc3 Qh6 19. Ne4 Rde8 20. Neg5 Qg6 21. Ne6 Qf6 22. Qc2 Nxd5 23. Nfd4 Rxe6 24. Nxe6 Qxe6 25. Rfe1 Qf6 26. Re2 g5 27. Rce1 Qf7 28. Qa4 Kd8 29. b4 Nc3 30. Qc2 Nxe2+ 31. Rxe2 g4 32. Kh2 gxh3 33. gxh3 Qf4+ 34. Kg1 Qg3+ 35. Kf1 Qxh3+ 36. Ke1 a5 37. Re3 Bxe3 38. fxe3 Qxe3+ 39. Kd1 Re8 40. Qd2 Qxd2+ 41. Kxd2 h4 42. bxa5 h3 43. Kc3 h2 44. Kb4 h1Q 45. Kb5 Qb1+ 46. Ka4 Re4+ 47. Ka3 Qb4# 0-1

[Event "URU-ch U20"]
[Site "Nueva Helvecia"]
[Date "2016.04.18"]
[Round "5"]
[White "Oviedo, Mathias"]
[Black "Vazquez, Facundo"]
[Result "0-1"]
[ECO "C11"]
[WhiteElo "1521"]
[BlackElo "1664"]
[PlyCount "50"]
[EventDate "2016.04.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "URU"]
[SourceTitle "CBM 171 Extra"]
[Source "ChessBase"]
[SourceDate "2016.04.26"]
[SourceVersion "1"]
[SourceVersionDate "2016.04.26"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 a6 6. b3 c5 7. Nf3 Nc6 8. Be3 Be7 9. Qd2 0-0 10. f5 Nxd4 11. Bxd4 cxd4 12. Nxd4 Nxe5 13. Qe3 Bf6 14. fxe6 fxe6 15. g3 Ng4 16. Qd3 Nf2 17. Kxf2 Bxd4+ 18. Ke2 Rf2+ 19. Ke1 Qf6 20. Nd1 Rf3 21. Qe2 Bc3+ 22. Nxc3 Qxc3+ 23. Qd2 Qxa1+ 24. Ke2 Qf6 25. Bg2 Rf2+ 0-1

[Event "URU-ch U20"]
[Site "Nueva Helvecia"]
[Date "2016.04.17"]
[Round "4"]
[White "Quevedo, Andreina"]
[Black "Oviedo, Mathias"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "1738"]
[BlackElo "1521"]
[PlyCount "51"]
[EventDate "2016.04.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "URU"]
[SourceTitle "CBM 171 Extra"]
[Source "ChessBase"]
[SourceDate "2016.04.26"]
[SourceVersion "1"]
[SourceVersionDate "2016.04.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. Bb3 Be6 7. 0-0 0-0 8. Nbd2 Qd7 9. Re1 b5 10. Nf1 a5 11. Bxe6 fxe6 12. d4 exd4 13. Nxd4 e5 14. Nf3 Ne7 15. Bg5 Qg4 16. h3 Qe6 17. Ng3 h6 18. Be3 Bxe3 19. Rxe3 Rfd8 20. Qe2 c6 21. b3 Ng6 22. Rd1 Nf4 23. Qf1 Ng6 24. Qe2 Nf4 25. Qf1 Ng6 26. Qe2 1/2-1/2

[Event "URU-ch U20"]
[Site "Nueva Helvecia"]
[Date "2016.04.17"]
[Round "3"]
[White "Rodriguez Delfino, Tiago"]
[Black "Oviedo, Mathias"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1328"]
[BlackElo "1521"]
[PlyCount "80"]
[EventDate "2016.04.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "URU"]
[SourceTitle "CBM 171 Extra"]
[Source "ChessBase"]
[SourceDate "2016.04.26"]
[SourceVersion "1"]
[SourceVersionDate "2016.04.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. d3 h6 6. Nbd2 b6 7. c3 Bb7 8. Re1 g5 9. Nb3 Qe7 10. d4 exd4 11. cxd4 Bb4 12. Re2 0-0-0 13. e5 Nh5 14. a3 Ba5 15. Nxa5 Nxa5 16. Rc2 Nxc4 17. Rxc4 Qe6 18. Rc3 Qd5 19. h3 Rhg8 20. Ne1 Ng7 21. Qf3 Qe6 22. Qg4 f5 23. Qe2 d6 24. Bd2 Rge8 25. Rac1 Rd7 26. Nd3 Qd5 27. f3 f4 28. Nb4 Qxd4+ 29. Kf1 Nf5 30. Be1 Ng3+ 31. Bxg3 fxg3 32. Nd3 Ba6 33. e6 Rde7 34. Qc2 Rxe6 35. Rxc7+ Kb8 36. Rc4 Bxc4 37. Qxc4 Qxc4 38. Rxc4 Re2 39. Rc6 Rd2 40. Rc1 Rxd3 0-1

[Event "URU-ch U20"]
[Site "Nueva Helvecia"]
[Date "2016.04.16"]
[Round "2"]
[White "Oviedo, Mathias"]
[Black "Kimelman, Gabriel"]
[Result "0-1"]
[ECO "C18"]
[WhiteElo "1521"]
[BlackElo "2179"]
[PlyCount "54"]
[EventDate "2016.04.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "URU"]
[SourceTitle "CBM 171 Extra"]
[Source "ChessBase"]
[SourceDate "2016.04.26"]
[SourceVersion "1"]
[SourceVersionDate "2016.04.26"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 Qc7 8. Qxg7 Rg8 9. Qxh7 cxd4 10. Ne2 Nbc6 11. f4 Bd7 12. Qd3 dxc3 13. Nxc3 a6 14. Ne2 Nf5 15. h3 Na5 16. g4 Ne7 17. g5 Nf5 18. h4 Rc8 19. c3 Nb3 20. Rb1 Nc5 21. Qf3 Ba4 22. Rb2 Bb5 23. Nd4 Nxd4 24. cxd4 Nd3+ 25. Bxd3 Qxc1+ 26. Qd1 Qxb2 27. Bxb5+ axb5 0-1

[Event "URU-chT Departamental"]
[Site "Punta del Este"]
[Date "2014.11.09"]
[Round "5.63"]
[White "Oviedo, Mathias"]
[Black "Chargonia, Alfredo"]
[Result "0-1"]
[ECO "B30"]
[BlackElo "1537"]
[PlyCount "96"]
[EventDate "2014.11.07"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bc4 e6 4. Nc3 Nc6 5. 0-0 g6 6. d3 Bg7 7. Bd2 Nge7 8. Qe2 0-0 9. Bf4 a6 10. e5 d5 11. Bb3 Na5 12. d4 c4 13. Ba4 b5 14. Bxb5 axb5 15. Nxb5 Ba6 16. Nc3 Nac6 17. a3 Rb8 18. b4 Nf5 19. Rfd1 Qd7 20. Rab1 Na7 21. Na4 Qxa4 22. Ra1 c3 23. Qe1 Rfc8 24. Rdc1 Rc4 25. Be3 Nxe3 26. Qxe3 Rc7 27. Ng5 h6 28. Nf3 Qc6 29. Ra2 Qc4 30. Rca1 Qe2 31. Qxe2 Bxe2 32. Ne1 Bc4 33. Nd3 Bxa2 34. Rxa2 Rc4 35. Nc5 Rxd4 36. Ra1 Rc8 37. g3 Bxe5 38. Nd7 f6 39. f4 Bd6 40. Nxf6+ Kg7 41. Nd7 Rd2 42. Rc1 Rc4 43. Nb6 Rcd4 44. Na4 Nb5 45. Re1 Rd1 46. Rxd1 Rxd1+ 47. Kf2 Rd2+ 48. Ke3 d4+ 0-1

[Event "URU-chT Departamental"]
[Site "Punta del Este"]
[Date "2014.11.09"]
[Round "4.83"]
[White "Souto, Andres"]
[Black "Oviedo, Mathias"]
[Result "1/2-1/2"]
[ECO "C54"]
[PlyCount "75"]
[EventDate "2014.11.07"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 0-0 6. 0-0 d6 7. h3 Bd7 8. Bg5 h6 9. Bxf6 Qxf6 10. Nbd2 Qg6 11. Kh2 Na5 12. b4 Nxc4 13. bxc5 Nxd2 14. Qxd2 dxc5 15. Nxe5 Qd6 16. f4 Rad8 17. Rad1 Bb5 18. c4 Ba4 19. Rb1 b6 20. Rf3 f6 21. Ng6 Rf7 22. e5 fxe5 23. Nxe5 Re7 24. Re1 g5 25. Re4 Rf8 26. g3 Bc6 27. Qe3 Bxe4 28. Qxe4 Rfe8 29. Re3 Qf6 30. Kg2 gxf4 31. gxf4 Rg7+ 32. Kf2 Qh4+ 33. Ke2 Qh5+ 34. Kd2 Re6 35. Qa8+ Qe8 36. Qd5 Kh7 37. Qe4+ Kg8 38. Qd5 1/2-1/2

[Event "URU-chT Departamental"]
[Site "Punta del Este"]
[Date "2014.11.08"]
[Round "3.54"]
[White "Casas, Nicolas"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "D03"]
[WhiteElo "1799"]
[PlyCount "31"]
[EventDate "2014.11.07"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bg5 Bg4 4. e3 e6 5. Be2 h6 6. Bh4 Nc6 7. c3 Be7 8. Nbd2 0-0 9. h3 Bh5 10. Qc2 Qd6 11. Bg3 Qd7 12. Ne5 Qe8 13. Bb5 a6 14. Nxc6 axb5 15. Ne5 c6 16. 0-0 1-0

[Event "URU-chT Departamental"]
[Site "Punta del Este"]
[Date "2014.11.07"]
[Round "1.83"]
[White "Oviedo, Mathias"]
[Black "Solari, Pablo"]
[Result "0-1"]
[ECO "C42"]
[BlackElo "1701"]
[PlyCount "110"]
[EventDate "2014.11.07"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Bc4 Nc6 6. Qe2 Qe7 7. d3 Nf6 8. Qxe7+ Bxe7 9. 0-0 0-0 10. Nc3 Bg4 11. Bg5 Bxf3 12. gxf3 Ne5 13. Bd5 Nxd5 14. f4 Nxc3 15. Bxe7 Ne2+ 16. Kh1 Nxf4 17. Bxf8 Kxf8 18. d4 Nf3 19. c3 Re8 20. b3 Re2 21. a4 Nd2 22. Rg1 Nxb3 23. Rab1 Na5 24. Rb5 b6 25. Rf5 Nh3 26. Rf1 g6 27. Rf3 Ng5 28. Re3 Rxe3 29. fxe3 Ne4 30. Rc1 Nb3 31. Rc2 c5 32. Kg2 Ke7 33. Kf3 f5 34. Ke2 Ke6 35. Kd3 d5 36. c4 dxc4+ 37. Kxc4 Na5+ 38. Kb5 cxd4 39. exd4 Kd5 40. Rc7 Kxd4 41. Rxa7 Nc4 42. Rxh7 Nc3+ 43. Kb4 Nd5+ 44. Kb5 Ne5 45. a5 bxa5 46. Kxa5 f4 47. Rh4 g5 48. Rh5 g4 49. Rh4 Ke4 50. Kb5 Ne3 51. h3 g3 52. Rh8 g2 53. Rg8 N5g4 54. Re8+ Kf3 55. hxg4 g1Q 0-1

[Event "South America-ch U14 11th"]
[Site "Montevideo"]
[Date "2014.09.14"]
[Round "9"]
[White "Soza Espinoza, Daniel Ignacio"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "C60"]
[WhiteElo "1471"]
[PlyCount "137"]
[EventDate "2014.09.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. 0-0 a6 5. Bxc6 Nxc6 6. Nc3 g6 7. d3 Bg7 8. Nd5 d6 9. c3 0-0 10. Be3 Bg4 11. h3 Bxf3 12. Qxf3 f6 13. b4 Ne7 14. Nxe7+ Qxe7 15. a4 b6 16. a5 bxa5 17. Rxa5 Qe6 18. Rfa1 Qb3 19. Bd2 Qc2 20. R5a2 Qb3 21. Rxa6 Rxa6 22. Rxa6 f5 23. Qe2 fxe4 24. dxe4 d5 25. exd5 Qxd5 26. Ra5 Qe6 27. Rc5 Qf7 28. Qc4 Qxc4 29. Rxc4 Rf7 30. Be3 Re7 31. Rc6 e4 32. Rc4 Rd7 33. Bd4 Bxd4 34. Rxd4 Rxd4 35. cxd4 Kf7 36. Kf1 Ke6 37. Ke2 Kd5 38. Ke3 Kc4 39. Kxe4 Kxb4 40. f4 c5 41. dxc5 Kxc5 42. Ke5 Kc4 43. g4 Kc5 44. Ke6 Kd4 45. f5 Ke4 46. fxg6 hxg6 47. Kf6 Kf4 48. Kxg6 Kg3 49. h4 Kxh4 50. g5 Kg4 51. Kf6 Kh5 52. g6 Kh6 53. Kf7 Kg5 54. g7 Kf5 55. g8Q Ke4 56. Qg5 Kd4 57. Qf5 Ke3 58. Qg4 Kd3 59. Qf4 Kc3 60. Qe4 Kb3 61. Qd4 Kc2 62. Qe3 Kb2 63. Qd3 Kc1 64. Qe2 Kb1 65. Ke6 Kc1 66. Kd5 Kb1 67. Kc4 Ka1 68. Kb3 Kb1 69. Qe1# 1-0

[Event "South America-ch U14 11th"]
[Site "Montevideo"]
[Date "2014.09.12"]
[Round "7"]
[White "Oviedo, Mathias"]
[Black "Reburdo, Rodrigo Hernan"]
[Result "0-1"]
[ECO "E16"]
[PlyCount "152"]
[EventDate "2014.09.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 b6 5. g3 Bb7 6. Nf3 d6 7. Bg2 Nbd7 8. a3 Bxc3 9. Bxc3 0-0 10. 0-0 Qe7 11. e3 Rfe8 12. Re1 Ne4 13. Qd3 Nef6 14. Re2 Rab8 15. Rae1 h6 16. b4 e5 17. Qc2 Be4 18. Qd1 Bb7 19. Qc2 Ba6 20. b5 Bb7 21. a4 Be4 22. Qd1 Qe6 23. d5 Qe7 24. Ra2 Nc5 25. Nd2 Ra8 26. Nxe4 Nfxe4 27. Bxe4 Nxe4 28. Qd3 Nc5 29. Qd1 a5 30. e4 Qg5 31. Ra3 Qg6 32. Qf3 Re7 33. Bd2 Rf8 34. Be3 Nxe4 35. Bxh6 Qxh6 36. Rxe4 f5 37. Rh4 Qg6 38. g4 Qf6 39. Qh3 fxg4 40. Rh8+ Kf7 41. Qh5+ g6 42. Rxf8+ Kxf8 43. Qxg4 Rf7 44. Qg2 Qf4 45. Rc3 Rf5 46. Rg3 g5 47. h3 Qxc4 48. Rf3 Qc1+ 49. Kh2 Rxf3 50. Qxf3+ Qf4+ 51. Qxf4+ exf4 52. Kg2 Kf7 53. Kf3 Ke7 54. Kg4 Kf6 55. h4 gxh4 56. Kxf4 h3 57. Kg3 h2 58. Kxh2 Ke5 59. Kg3 Kxd5 60. Kg4 Kc4 61. f4 d5 62. f5 d4 63. Kf3 Kc3 64. f6 d3 65. f7 d2 66. f8Q d1Q+ 67. Kg3 Qd3+ 68. Kg4 Qd4+ 69. Kg5 Qc5+ 70. Qxc5+ bxc5 71. Kf5 Kb4 72. Ke4 c4 73. Kd5 c3 74. Kc6 Kxa4 75. Kxc7 Kxb5 76. Kd6 c2 0-1

[Event "South America-ch U14 11th"]
[Site "Montevideo"]
[Date "2014.09.11"]
[Round "6"]
[White "Appoloni, Juan"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "145"]
[EventDate "2014.09.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. g3 Nf6 4. Bg2 g6 5. 0-0 Bg7 6. b3 0-0 7. Bb2 Bf5 8. Nbd2 Nb4 9. c3 Nc6 10. Qe1 Qd7 11. Ng5 Bh6 12. Ngf3 Bh3 13. e3 Bf5 14. Ne5 Nxe5 15. dxe5 Ne8 16. Qd1 c6 17. e4 Bh3 18. exd5 Bxg2 19. Kxg2 Qxd5+ 20. Nf3 Qxd1 21. Raxd1 e6 22. Ba3 Nc7 23. Bxf8 Bxf8 24. Rd7 Nd5 25. c4 Nc3 26. a4 Ne4 27. Rxb7 Nc5 28. Rc7 Rb8 29. Nd4 Nxb3 30. Nxb3 Rxb3 31. Rc1 Rb6 32. Rxa7 Bc5 33. Ra8+ Kg7 34. Rc2 Bd4 35. f4 Rb1 36. a5 Rg1+ 37. Kh3 Ra1 38. c5 f6 39. Ra7+ Kh6 40. exf6 Bxf6 41. Re2 Bd4 42. Rxe6 Bxc5 43. Ra8 Bb4 44. Rxc6 Rxa5 45. Rxa5 Bxa5 46. g4 Bd2 47. Kg3 Be1+ 48. Kf3 Bh4 49. h3 Be1 50. Rc7 Bh4 51. Rb7 Bd8 52. g5+ Bxg5 53. fxg5+ Kxg5 54. Rxh7 Kf6 55. Rh4 g5 56. Ra4 Kg6 57. Kg4 Kf6 58. Ra6+ Ke5 59. Kxg5 Ke4 60. Rd6 Ke5 61. Rf6 Ke4 62. Rf5 Kd4 63. Kf4 Kd3 64. Re5 Kd4 65. h4 Kd3 66. Kf3 Kd4 67. Kf4 Kd3 68. Re4 Kc3 69. Ke3 Kc2 70. Rc4+ Kb3 71. Kd3 Kb2 72. Rc3 Ka2 73. Kc2 1-0

[Event "South America-ch U14 11th"]
[Site "Montevideo"]
[Date "2014.09.11"]
[Round "5"]
[White "Oviedo, Mathias"]
[Black "Anza, Vicenzo"]
[Result "1/2-1/2"]
[ECO "D12"]
[PlyCount "71"]
[EventDate "2014.09.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. e3 Nf6 4. Nc3 Bf5 5. Nf3 e6 6. a3 g6 7. Nh4 Bg7 8. f3 Nfd7 9. Nxf5 exf5 10. cxd5 cxd5 11. Nxd5 0-0 12. e4 fxe4 13. fxe4 Nc6 14. Be3 Qh4+ 15. Bf2 Qxe4+ 16. Ne3 Nxd4 17. Bd3 Qe6 18. 0-0 Rac8 19. Re1 Qb6 20. Nd5 Qd6 21. Ne7+ Kh8 22. Nxc8 Rxc8 23. Rc1 Rxc1 24. Qxc1 Ne5 25. Bxd4 Qxd4+ 26. Kh1 Kg8 27. Bf1 b6 28. Qc3 Qxc3 29. bxc3 a5 30. Rd1 Bf8 31. Rd8 Kg7 32. a4 Bc5 33. h3 h5 34. Kh2 Kf6 35. Kg3 Kg5 36. Rd5 1/2-1/2

[Event "South America-ch U14 11th"]
[Site "Montevideo"]
[Date "2014.09.10"]
[Round "4"]
[White "Maristan Aguilar, Emiliano"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "D10"]
[PlyCount "69"]
[EventDate "2014.09.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. e3 Nf6 4. Nc3 Nbd7 5. Nf3 g6 6. Bd3 Bg7 7. Bd2 e6 8. cxd5 exd5 9. 0-0 0-0 10. Qc2 c5 11. b3 b6 12. Rac1 a6 13. Na4 cxd4 14. Nxd4 Bb7 15. Qc7 Qxc7 16. Rxc7 Rab8 17. Rfc1 b5 18. Nc5 Nxc5 19. R1xc5 Ne8 20. Rd7 Bxd4 21. exd4 Nf6 22. Re7 Rfe8 23. Rcc7 Rxe7 24. Rxe7 Kf8 25. Bb4 Kg7 26. Bd6 Rd8 27. Be5 Bc8 28. h3 Bd7 29. g4 h6 30. f4 g5 31. fxg5 hxg5 32. h4 gxh4 33. g5 Rh8 34. Rxd7 h3 35. Bxf6+ 1-0

[Event "South America-ch U14 11th"]
[Site "Montevideo"]
[Date "2014.09.09"]
[Round "3"]
[White "Oviedo, Mathias"]
[Black "Ciganda, Manuel"]
[Result "0-1"]
[ECO "D37"]
[PlyCount "62"]
[EventDate "2014.09.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bf4 0-0 6. Qc2 Nbd7 7. 0-0-0 c5 8. e3 b6 9. dxc5 Nxc5 10. Bd3 Re8 11. Ng5 g6 12. f3 Bf8 13. e4 e5 14. Bg3 d4 15. Ne2 Bd7 16. b3 Rc8 17. Qb1 a6 18. f4 Nh5 19. fxe5 Qxg5+ 20. Rd2 Bh6 21. Qb2 Nxd3+ 22. Kc2 Nxb2 23. Bf4 Nxf4 24. Re1 Nxg2 25. Rxd4 Nxe1+ 26. Kb1 Bg4 27. Kxb2 Bxe2 28. Ka3 Nc2+ 29. Ka4 Qxe5 30. Rd5 Rc5 31. Rxe5 Rcxe5 0-1

[Event "South America-ch U14 11th"]
[Site "Montevideo"]
[Date "2014.09.09"]
[Round "2"]
[White "Silva Dalla Rizza, Martin"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "D04"]
[WhiteElo "1217"]
[PlyCount "43"]
[EventDate "2014.09.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 a6 4. Bd3 Nc6 5. Nbd2 Nb4 6. Be2 Bf5 7. 0-0 Bxc2 8. Qe1 Bd3 9. Bxd3 Nxd3 10. Qd1 Ne4 11. Nxe4 dxe4 12. Nd2 Qd5 13. Nb1 Nxc1 14. Qxc1 c6 15. Nc3 Qf5 16. Qc2 g6 17. Nxe4 e5 18. Rad1 Rd8 19. dxe5 Rxd1 20. Nf6+ Ke7 21. Qxd1 Bg7 22. Qd6# 1-0

[Event "South America-ch U14 11th"]
[Site "Montevideo"]
[Date "2014.09.08"]
[Round "1"]
[White "Oviedo, Mathias"]
[Black "De Borba, Guilherme"]
[Result "0-1"]
[ECO "E21"]
[BlackElo "1689"]
[PlyCount "50"]
[EventDate "2014.09.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nc3 b6 5. a3 Bxc3+ 6. bxc3 Bb7 7. Bg5 h6 8. Bh4 g5 9. Bg3 Ne4 10. Qb3 d6 11. e3 Nc6 12. Bd3 Na5 13. Qc2 f5 14. Rd1 g4 15. Bh4 Ng5 16. c5 Nxf3+ 17. gxf3 Qxh4 18. cxd6 cxd6 19. d5 Bxd5 20. Bb5+ Ke7 21. e4 Bb3 22. Qd2 Bxd1 23. f4 Bf3 24. e5 d5 25. 0-0 Qh3 0-1

[Event "URU-chT Clubs"]
[Site "Punta del Este"]
[Date "2014.08.25"]
[Round "5.71"]
[White "Costa, Anaclara"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1658"]
[PlyCount "39"]
[EventDate "2014.08.23"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 d5 2. e3 a6 3. Bd3 Nf6 4. Nd2 g6 5. f4 e6 6. Ngf3 Nc6 7. c3 Bg7 8. 0-0 0-0 9. Ne5 Nxe5 10. fxe5 Ne8 11. e4 b5 12. exd5 exd5 13. Qe1 f6 14. Qh4 Be6 15. Nf3 fxe5 16. Bg5 Bf6 17. dxe5 Bxg5 18. Nxg5 Rxf1+ 19. Rxf1 c6 20. Qxh7# 1-0

[Event "URU-chT Clubs"]
[Site "Punta del Este"]
[Date "2014.08.24"]
[Round "3.61"]
[White "Lopez, Aldi"]
[Black "Oviedo, Mathias"]
[Result "1-0"]
[ECO "C57"]
[WhiteElo "2042"]
[PlyCount "43"]
[EventDate "2014.08.23"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. Nxf7 Kxf7 7. Qf3+ Ke6 8. Nc3 Ncb4 9. 0-0 c6 10. Bb3 Qd6 11. d4 Kd7 12. a3 Nxc3 13. axb4 Nb5 14. dxe5 Qxe5 15. Bf4 Qf6 16. Qg4+ Ke8 17. Rfe1+ Be7 18. Qh5+ Qg6 19. Qh4 Qf6 20. Bg5 Qf5 21. Rxe7+ Kd8 22. Rd1+ 1-0

[Event "URU-chT Clubs"]
[Site "Punta del Este"]
[Date "2014.08.24"]
[Round "4.81"]
[White "Oviedo, Mathias"]
[Black "Mercado, Renee"]
[Result "0-1"]
[ECO "E60"]
[PlyCount "84"]
[EventDate "2014.08.23"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. e3 0-0 5. Be2 c6 6. c5 d5 7. 0-0 Nbd7 8. Nc3 Re8 9. b4 e5 10. a3 e4 11. Nd2 Bh6 12. Nb3 b6 13. Kh1 Nf8 14. Rg1 Be6 15. Bf1 Ng4 16. Qd2 Qh4 17. h3 Nxf2+ 18. Kh2 Ng4+ 19. Kh1 Bxe3 20. Qe2 Bxg1 21. Kxg1 Nf6 22. Nd1 Nh5 23. Bd2 f5 24. Nf2 f4 25. Be1 Ng3 26. Qd2 e3 27. Qc2 Nxf1 28. Kxf1 exf2 29. Bxf2 Qh5 30. Qd2 f3 31. Bg1 fxg2+ 32. Qxg2 Bxh3 33. Qxh3 Qxh3+ 34. Kf2 Qxb3 35. Re1 Qc2+ 36. Kf1 Qf5+ 37. Bf2 Rxe1+ 38. Kg2 Qg4+ 39. Kh2 Re2 40. Kh1 Qf3+ 41. Kh2 Rxf2+ 42. Kg1 Qg2# 0-1

[Event "URU-chT Clubs"]
[Site "Punta del Este"]
[Date "2014.08.23"]
[Round "2.42"]
[White "Oviedo, Mathias"]
[Black "Figueroa, Alfonso"]
[Result "0-1"]
[ECO "D10"]
[BlackElo "1902"]
[PlyCount "116"]
[EventDate "2014.08.23"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Bf4 Nf6 4. Nc3 Bf5 5. e3 e6 6. a3 Bd6 7. Bxd6 Qxd6 8. c5 Qc7 9. b4 Nbd7 10. Nf3 h6 11. Be2 0-0 12. 0-0 e5 13. h3 exd4 14. Qxd4 Rfe8 15. Nh4 Bh7 16. Rfe1 Ne4 17. Bd3 Ndf6 18. f3 Nxc3 19. Bxh7+ Kxh7 20. Qxc3 Qd7 21. Qd3+ g6 22. Rf1 Qe7 23. Rae1 Qe5 24. e4 Qg5 25. e5 Qxh4 26. f4 Ne4 27. Kh2 Qe7 28. g4 a6 29. Rxe4 dxe4 30. Qxe4 Rad8 31. f5 Qxe5+ 32. Qxe5 Rxe5 33. fxg6+ Kxg6 34. Kg3 Re3+ 35. Kh4 Rdd3 36. Rh1 Rxa3 37. Rh2 Rab3 38. Rh1 Rxb4 39. Rg1 Rbb3 40. Rh1 a5 41. Rh2 a4 42. Rh1 Rxh3+ 43. Rxh3 Rxh3+ 44. Kxh3 a3 45. Kg3 a2 46. Kf4 f6 47. Ke4 a1Q 48. g5 Qa4+ 49. Kd3 Kxg5 50. Ke3 Qc4 51. Kf3 Qf4+ 52. Ke2 Qg3 53. Kd2 Qb3 54. Ke2 Kf4 55. Kd2 Ke4 56. Kc1 Qa2 57. Kd1 Kd3 58. Ke1 Qe2# 0-1

