[Event "Pan American-ch School U11 12th"]
[Site "Callao"]
[Date "2023.10.21"]
[Round "9"]
[White "Angeles Castillo, Bastian Missael Val"]
[Black "Pumachaico Valdiviezo, Piero Alonso"]
[Result "0-1"]
[ECO "B10"]
[WhiteElo "1170"]
[BlackElo "1427"]
[PlyCount "50"]
[EventDate "2023.10.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CB48_2023"]
[SourceDate "2023.11.29"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.29"]
[SourceQuality "1"]

1. e4 c6 2. c4 d5 3. cxd5 cxd5 4. exd5 Qxd5 5. Nc3 Qa5 6. Bc4 Nf6 7. Qb3 e6 8. Qb5+ Qxb5 9. Nxb5 Kd8 10. Nf3 a6 11. Nc3 b5 12. Bb3 Bd6 13. Bc2 Bb7 14. Ng5 Ke7 15. Nge4 Nxe4 16. Nxe4 Bc7 17. 0-0 Nd7 18. d4 Rac8 19. Bd3 Rhd8 20. Rd1 h6 21. Be3 f5 22. Nc5 Nxc5 23. dxc5 Be5 24. Rab1 f4 25. Bc1 Rxc5 0-1

[Event "Pan American-ch School U11 12th"]
[Site "Callao"]
[Date "2023.10.20"]
[Round "8"]
[White "Gao, Heye"]
[Black "Pumachaico Valdiviezo, Piero Alonso"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1508"]
[BlackElo "1427"]
[PlyCount "69"]
[EventDate "2023.10.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CB48_2023"]
[SourceDate "2023.11.29"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.29"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. Qb3 Qd7 8. Nd2 e6 9. Ngf3 Bd6 10. Bxd6 Qxd6 11. 0-0 Rb8 12. Rfe1 0-0 13. Ne5 Bh5 14. Qc2 Rfc8 15. Nxc6 Rxc6 16. Re3 b5 17. a3 Bg6 18. Bxg6 hxg6 19. Nb3 g5 20. Qe2 g6 21. Nc1 Nd7 22. Nd3 Kg7 23. Re1 Rh8 24. g3 a6 25. Qg4 Rh5 26. f4 Nf6 27. Qe2 Ne4 28. fxg5 Rxg5 29. Nf2 Nxf2 30. Qxf2 Rf5 31. Rf3 Rxf3 32. Qxf3 Rc8 33. Kf1 f5 34. Qe2 Re8 35. Kf2 1-0

[Event "Pan American-ch School U11 12th"]
[Site "Callao"]
[Date "2023.10.19"]
[Round "6"]
[White "Arrue Rengifo, Amos Aaron"]
[Black "Pumachaico Valdiviezo, Piero Alonso"]
[Result "0-1"]
[ECO "E38"]
[WhiteElo "1077"]
[BlackElo "1427"]
[PlyCount "38"]
[EventDate "2023.10.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CB48_2023"]
[SourceDate "2023.11.29"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. Nf3 0-0 6. e3 c5 7. cxd5 exd5 8. a3 Bxc3+ 9. Qxc3 Ne4 10. Qc2 Bf5 11. Bd3 c4 12. Bxe4 Bxe4 13. Qd1 Nc6 14. 0-0 b5 15. Bd2 a5 16. b3 b4 17. bxc4 dxc4 18. axb4 axb4 19. Rc1 Qd5 0-1

[Event "Pan American-ch School U11 12th"]
[Site "Callao"]
[Date "2023.10.19"]
[Round "7"]
[White "Pumachaico Valdiviezo, Piero Alonso"]
[Black "Ortega Rueda, Nicolas"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1427"]
[BlackElo "1198"]
[PlyCount "57"]
[EventDate "2023.10.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CB48_2023"]
[SourceDate "2023.11.29"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.29"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. e3 e6 4. Nf3 Bd6 5. Ne5 0-0 6. Nd2 c5 7. c3 Qc7 8. Bd3 Nbd7 9. Ndf3 cxd4 10. exd4 Ne4 11. Nxd7 Bxd7 12. Bxd6 Qxd6 13. 0-0 f5 14. Ne5 Bc6 15. f3 Ng5 16. Qd2 Nf7 17. Rae1 Nxe5 18. Rxe5 Rf6 19. f4 Raf8 20. Rf3 Rg6 21. Qf2 Rff6 22. Ree3 Kf7 23. Rh3 h6 24. Be2 Kg8 25. Bh5 Rg4 26. Re5 g5 27. Bxg4 fxg4 28. Rg3 Rxf4 29. Qe2 1-0

[Event "Pan American-ch School U11 12th"]
[Site "Callao"]
[Date "2023.10.18"]
[Round "5"]
[White "Pumachaico Valdiviezo, Piero Alonso"]
[Black "Paredes Minaya, Crhistian Jesus"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1427"]
[BlackElo "1250"]
[PlyCount "92"]
[EventDate "2023.10.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CB48_2023"]
[SourceDate "2023.11.29"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.29"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 c5 3. e3 e6 4. Nf3 Nf6 5. Nbd2 Nc6 6. c3 Bd6 7. Bg3 0-0 8. Ne5 Qc7 9. Nxc6 Qxc6 10. Bd3 b6 11. 0-0 Bxg3 12. hxg3 Bb7 13. g4 Ne4 14. Nxe4 dxe4 15. Be2 f5 16. gxf5 exf5 17. dxc5 Qxc5 18. Qd7 Bc6 19. Qe6+ Kh8 20. b4 Qxc3 21. Qc4 Qxc4 22. Bxc4 b5 23. Bb3 Rad8 24. Rfd1 h6 25. Rac1 Rxd1+ 26. Rxd1 Rf6 27. Rd8+ Kh7 28. Bd1 Rf7 29. Bb3 Rd7 30. Rc8 Rd6 31. Rc7 a6 32. Re7 Kg6 33. Re6+ Rxe6 34. Bxe6 Bb7 35. Kf1 Kf6 36. Bb3 Ke5 37. a3 Bd5 38. Bc2 g5 39. g3 Bc4+ 40. Ke1 f4 41. exf4+ gxf4 42. gxf4+ Kxf4 43. Bd1 Bf7 44. a4 bxa4 45. Bxa4 h5 46. Kf1 Bc4+ 0-1

[Event "Pan American-ch School U11 12th"]
[Site "Callao"]
[Date "2023.10.17"]
[Round "3"]
[White "Pumachaico Valdiviezo, Piero Alonso"]
[Black "Navarro Costa, Alejandro Mauricio"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1427"]
[BlackElo "1269"]
[PlyCount "61"]
[EventDate "2023.10.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CB48_2023"]
[SourceDate "2023.11.29"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.29"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. Nc3 d6 4. e4 Bg7 5. Qd2 Nbd7 6. 0-0-0 0-0 7. e5 dxe5 8. dxe5 Nh5 9. Bh6 Bxe5 10. h4 Qe8 11. g4 Ng7 12. Nf3 Bd6 13. h5 Nf6 14. hxg6 fxg6 15. Bxg7 Kxg7 16. Qh6+ Kh8 17. Nh4 Nh5 18. Nxg6+ Kg8 19. Qxf8+ Qxf8 20. Nxf8 Bxg4 21. Be2 Bf4+ 22. Kb1 Bxe2 23. Nxe2 Rxf8 24. Rxh5 Bd6 25. f4 Bxf4 26. Rf1 e5 27. Nxf4 exf4 28. Rh4 f3 29. Rh3 f2 30. Rh2 Re8 31. Rhxf2 1-0

[Event "Pan American-ch School U11 12th"]
[Site "Callao"]
[Date "2023.10.17"]
[Round "4"]
[White "Ruiz Bolanos, Eithan"]
[Black "Pumachaico Valdiviezo, Piero Alonso"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1582"]
[BlackElo "1427"]
[PlyCount "59"]
[EventDate "2023.10.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CB48_2023"]
[SourceDate "2023.11.29"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.29"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. Qb3 Qd7 8. Nd2 e6 9. Ngf3 a6 10. 0-0 Be7 11. Rae1 0-0 12. Qc2 Bh5 13. Ne5 Qc8 14. Qb1 Bg6 15. Nxg6 hxg6 16. Nf3 Nh5 17. Bg3 Nxg3 18. fxg3 Bf6 19. Re3 g5 20. g4 Ne7 21. Ne5 Bxe5 22. Bh7+ Kh8 23. Rh3 g6 24. Bxg6+ Kg8 25. Bh7+ Kg7 26. dxe5 Qc5+ 27. Kh1 d4 28. Bg8 Ng6 29. Rxf7+ Rxf7 30. Rh7+ 1-0

[Event "Pan American-ch School U11 12th"]
[Site "Callao"]
[Date "2023.10.16"]
[Round "1"]
[White "Pumachaico Valdiviezo, Piero Alonso"]
[Black "Rodriguez Ibanez, Alejandro"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1427"]
[BlackElo "1044"]
[PlyCount "83"]
[EventDate "2023.10.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CB48_2023"]
[SourceDate "2023.11.29"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.29"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 Bf5 4. c4 e6 5. Qb3 b6 6. Nc3 c6 7. cxd5 cxd5 8. Bb5+ Nfd7 9. Nf3 a6 10. Qa4 a5 11. Bxb8 Rxb8 12. Ne5 Rb7 13. Bc6 Rc7 14. Nb5 Rxc6 15. Nxc6 Qc8 16. Rc1 Bb4+ 17. Qxb4 axb4 18. Nd6+ Kf8 19. Nxc8 g6 20. Nxb4 Kg7 21. Kd2 Nf6 22. Nd6 Ne4+ 23. Nxe4 dxe4 24. Rc6 Rb8 25. Rhc1 Rd8 26. Rxb6 e5 27. d5 h6 28. d6 Rd7 29. Rc7 Rd8 30. Na6 h5 31. d7 Kh6 32. Rb8 Kg5 33. Rxd8 f6 34. Re8 Bxd7 35. Rxd7 Kf5 36. b4 g5 37. b5 Kg4 38. b6 f5 39. b7 Kh4 40. b8Q Kg4 41. Qxe5 f4 42. Rg7 1-0

[Event "Pan American-ch School U11 12th"]
[Site "Callao"]
[Date "2023.10.16"]
[Round "2"]
[White "Ruiz Espinola, Osvaldo German"]
[Black "Pumachaico Valdiviezo, Piero Alonso"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1128"]
[BlackElo "1427"]
[PlyCount "30"]
[EventDate "2023.10.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CB48_2023"]
[SourceDate "2023.11.29"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.29"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. d4 a6 5. Nc3 Nc6 6. Bf4 Bg4 7. Be2 e6 8. Qd2 Nf6 9. 0-0-0 Bb4 10. Qd3 Bf5 11. Qd2 Ne4 12. Qe3 Bxc3 13. bxc3 Qa5 14. Bd3 Qa3+ 15. Kb1 Nxc3+ 0-1

