[Event "South America-ch U12 11th"]
[Site "Montevideo"]
[Date "2014.09.14"]
[Round "9"]
[White "Rivas, Tomas"]
[Black "Perrachon, Marcos"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "23"]
[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. Bc4 Nf6 4. d3 Bc5 5. 0-0 0-0 6. Nc3 d6 7. h3 h6 8. a4 Nd4 9. Nxd4 Bxd4 10. Qf3 Qe7 11. Nd5 Kh8 12. Nxe7 1-0

[Event "South America-ch U12 11th"]
[Site "Montevideo"]
[Date "2014.09.12"]
[Round "7"]
[White "Sanaguas Mella, Bastian"]
[Black "Rivas, Tomas"]
[Result "1-0"]
[ECO "D00"]
[PlyCount "77"]
[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. Bf4 Bf5 3. e3 e6 4. Bd3 Nh6 5. Bxh6 gxh6 6. Bxf5 exf5 7. Nf3 Nc6 8. 0-0 Qf6 9. Nc3 0-0-0 10. Rb1 Be7 11. a3 h5 12. h4 Rhg8 13. g3 f4 14. Ne2 fxg3 15. fxg3 Rg6 16. Ne5 Qd6 17. Nxg6 hxg6 18. Rxf7 Rf8 19. Rxf8+ Bxf8 20. Qd2 Qe7 21. b4 b5 22. Nf4 Qf6 23. Nxd5 Qd8 24. Nf4 g5 25. Ne6 Qe7 26. Nxf8 Qxf8 27. hxg5 Qg7 28. d5 Ne5 29. Rf1 Qxg5 30. Qf2 Nd7 31. Qe1 h4 32. Kh2 hxg3+ 33. Qxg3 Qxd5 34. Rf4 Qa2 35. Kh3 Qxa3 36. Re4 a5 37. Qg8+ Kb7 38. Qd5+ Kc8 39. Re8# 1-0

[Event "South America-ch U12 11th"]
[Site "Montevideo"]
[Date "2014.09.11"]
[Round "6"]
[White "Rivas, Tomas"]
[Black "Ximeno, Agustin"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "60"]
[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. Bc4 Bc5 4. 0-0 d6 5. d3 Bg4 6. h3 Bh5 7. Nc3 Nd4 8. g4 Nxf3+ 9. Qxf3 Bg6 10. Kg2 h5 11. gxh5 Bxh5 12. Qf5 Qf6 13. Qxf6 Nxf6 14. Nd5 0-0-0 15. Nxf6 gxf6 16. c3 Rdg8+ 17. Kh2 Bg4 18. Rg1 Rxh3+ 19. Kg2 Rh7 20. Bxf7 Rxf7 21. f3 Bxg1 22. Kxg1 Bxf3+ 23. Kf2 Bh1 24. Bd2 Rh7 25. d4 Rg2+ 26. Ke1 Rhh2 27. Be3 Re2+ 28. Kd1 Rxe3 29. dxe5 Rg3 30. exf6 Rg1# 0-1

[Event "South America-ch U12 11th"]
[Site "Montevideo"]
[Date "2014.09.11"]
[Round "5"]
[White "Vicuna, Gabriel"]
[Black "Rivas, Tomas"]
[Result "0-1"]
[ECO "A28"]
[PlyCount "68"]
[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. c4 e5 2. e4 Nc6 3. Nf3 Nf6 4. Nc3 Bc5 5. g3 0-0 6. Bg2 d6 7. 0-0 Nd4 8. Nxd4 Bxd4 9. d3 c5 10. Be3 Bxe3 11. fxe3 Ng4 12. Nd5 Be6 13. Re1 Qg5 14. Qc1 Qh6 15. h3 Nf6 16. Nxf6+ Qxf6 17. Rf1 Qh6 18. g4 a6 19. a4 Rab8 20. Re1 a5 21. b3 b6 22. Qc2 Rbd8 23. Rad1 Rb8 24. d4 Qh4 25. Qc3 f6 26. d5 Bd7 27. Ra1 h5 28. gxh5 Qxh5 29. Rf1 Bxh3 30. Bxh3 Qxh3 31. Qd3 Qg3+ 32. Kh1 Kf7 33. Ra2 Rh8+ 34. Rh2 Qxh2# 0-1

[Event "South America-ch U12 11th"]
[Site "Montevideo"]
[Date "2014.09.10"]
[Round "4"]
[White "Appoloni, Facundo Jose"]
[Black "Rivas, Tomas"]
[Result "1-0"]
[ECO "D00"]
[PlyCount "99"]
[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. Nc3 e6 4. a3 Bd6 5. g3 0-0 6. Bg2 Nc6 7. 0-0 e5 8. dxe5 Nxe5 9. Nxe5 Bxe5 10. Nxd5 Ng4 11. c3 c6 12. Ne3 Qf6 13. Bf3 Qg6 14. Qa4 f5 15. Nxg4 fxg4 16. Bg2 b5 17. Qe4 Qxe4 18. Bxe4 Bb7 19. Be3 a6 20. Rfd1 Rab8 21. Rd7 Rfd8 22. Rxd8+ Rxd8 23. Kg2 Rd7 24. h3 gxh3+ 25. Kxh3 Bc8 26. Kg2 Bb7 27. Kg1 c5 28. Bxb7 Rxb7 29. Rd1 c4 30. Rd8+ Kf7 31. Ra8 Rb6 32. Bxb6 g5 33. Rxa6 h5 34. Bd4 Bc7 35. Ra7 h4 36. gxh4 gxh4 37. Rxc7+ Kg6 38. Rc5 b4 39. axb4 h3 40. Bf6 Kxf6 41. Rxc4 Kg5 42. b5 h2+ 43. Kxh2 Kf5 44. b6 Ke5 45. b7 Kd5 46. Rc7 Ke4 47. b8Q Kf5 48. Re7 Kg4 49. Qf8 Kg5 50. Rg7+ 1-0

[Event "South America-ch U12 11th"]
[Site "Montevideo"]
[Date "2014.09.09"]
[Round "2"]
[White "Costa, Felipe"]
[Black "Rivas, Tomas"]
[Result "0-1"]
[ECO "A29"]
[PlyCount "77"]
[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. c4 e5 2. Nf3 Nc6 3. g3 Nf6 4. Bg2 Bc5 5. 0-0 d6 6. Nc3 0-0 7. d3 a6 8. Bg5 h6 9. Bh4 Rb8 10. a4 Bb4 11. Nd5 g5 12. Nxg5 Nxd5 13. Ne6 Qe8 14. Bxd5 fxe6 15. Bg2 Qd7 16. Qc1 Nd4 17. Qxh6 c6 18. Bf6 Qh7 19. Qg5+ Kf7 20. Be4 Rg8 21. Bg6+ Qxg6 22. Qh4 Qxf6 23. Qh7+ Rg7 24. Qh5+ Qg6 25. Qh4 Rh7 26. Qd8 Bd2 27. Qc7+ Kg8 28. Qxb8 Qe8 29. Rfb1 a5 30. f4 exf4 31. gxf4 Nxe2+ 32. Kf1 Nxf4 33. Qxd6 Rf7 34. Qe5 Nxd3+ 35. Ke2 Nxe5 36. Kxd2 Rf2+ 37. Kc3 Nxc4 38. Kb3 b5 39. h4 0-1

[Event "South America-ch U12 11th"]
[Site "Montevideo"]
[Date "2014.09.09"]
[Round "3"]
[White "Rivas, Tomas"]
[Black "Rueda Nessi, Francisco"]
[Result "0-1"]
[ECO "B30"]
[BlackElo "1512"]
[PlyCount "52"]
[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 c5 2. Bc4 d6 3. Nf3 Nc6 4. d3 Nf6 5. 0-0 g6 6. Nc3 Bg7 7. Ng5 0-0 8. a4 Ne5 9. Bb3 b6 10. Nd5 Bb7 11. Nxf6+ exf6 12. Nf3 d5 13. Nxe5 fxe5 14. Qf3 dxe4 15. dxe4 Qd4 16. Bd5 Bxd5 17. exd5 e4 18. Qd1 Rad8 19. Qxd4 cxd4 20. c4 dxc3 21. bxc3 Rxd5 22. f3 Bxc3 23. Rb1 exf3 24. gxf3 Bd2 25. Bxd2 Rxd2 26. Rfd1 Ra2 0-1

[Event "South America-ch U12 11th"]
[Site "Montevideo"]
[Date "2014.09.08"]
[Round "1"]
[White "Rivas, Tomas"]
[Black "Mollo, Jhoan"]
[Result "0-1"]
[ECO "B30"]
[BlackElo "1524"]
[PlyCount "52"]
[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 c5 2. Nf3 g6 3. Bc4 Nc6 4. d3 e6 5. 0-0 Bg7 6. Nc3 Nge7 7. a3 0-0 8. Ng5 d5 9. exd5 exd5 10. Ba2 h6 11. Nf3 Kh7 12. Ne2 Bg4 13. Nf4 Ne5 14. c3 Nxf3+ 15. gxf3 Bf5 16. d4 c4 17. b4 g5 18. Nh5 Rg8 19. Nxg7 Rxg7 20. Kh1 Qg8 21. Rg1 g4 22. fxg4 Bxg4 23. Qd2 Bf3+ 24. Rg2 Bxg2+ 25. Kg1 Bf3+ 26. Kf1 Rg1# 0-1

