[Event "PER-ch U20"]
[Site "Lima"]
[Date "2012.05.25"]
[Round "5"]
[White "Espinoza Ortecho, Walter Yampier"]
[Black "Mesias Mendieta, Jorge Luis"]
[Result "0-1"]
[ECO "B07"]
[PlyCount "97"]
[EventDate "2012.05.23"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bd3 Bg7 5. Nh3 Bxh3 6. gxh3 Nbd7 7. Be3 e5 8. d5 a6 9. Qd2 Qe7 10. 0-0-0 0-0-0 11. Na4 Qe8 12. Qc3 Kb8 13. Qb3 Kc8 14. Ba7 Bh6+ 15. f4 Bxf4+ 16. Kb1 g5 17. Qc4 g4 18. Qxa6 Nb8 19. Qa5 gxh3 20. Qc3 Qxa4 21. Bb6 Qd7 22. Bb5 Qe7 23. Rhg1 Rdg8 24. a4 Rxg1 25. Rxg1 Kd8 26. Ba7 Nxe4 27. Qxh3 Nd7 28. Re1 Nef6 29. a5 Nxd5 30. a6 bxa6 31. Bxa6 Qe6 32. Qh4+ Qf6 33. Qh3 Qe6 34. Qh5 N5f6 35. Qf3 Qd5 36. Qh3 Qa5 37. Qf1 Nc5 38. Bxc5 Qxc5 39. Bb5 c6 40. Bc4 d5 41. Ba6 Ne4 42. Rxe4 dxe4 43. Qh3 Ke7 44. Qh4+ f6 45. Qg4 Ra8 46. Qg7+ Ke6 47. Qg4+ f5 48. Bb7 fxg4 49. Bxa8 0-1

[Event "PER-ch U20"]
[Site "Lima"]
[Date "2012.05.25"]
[Round "6"]
[White "Espinoza Ortecho, Walter Yampier"]
[Black "Rojas Serrano, Victor"]
[Result "0-1"]
[ECO "A45"]
[BlackElo "1704"]
[PlyCount "43"]
[EventDate "2012.05.23"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. e3 g6 3. f4 Bg7 4. Bd3 d5 5. Nc3 Nc6 6. Bd2 Nb4 7. Bb5+ c6 8. Ba4 Bf5 9. e4 dxe4 10. Nge2 0-0 11. Ng3 Bg4 12. Nce2 Nbd5 13. h3 e3 14. hxg4 exd2+ 15. Qxd2 Nxg4 16. Qd3 Qa5+ 17. Nc3 Nxc3 18. bxc3 Rfd8 19. Bb3 Bxd4 20. Qf3 Rac8 21. Kf1 Qa6+ 22. Ne2 0-1

[Event "PER-ch U20"]
[Site "Lima"]
[Date "2012.05.24"]
[Round "3"]
[White "Espinoza Ortecho, Walter Yampier"]
[Black "Flores Martinez, Jhon Pool"]
[Result "0-1"]
[ECO "B07"]
[PlyCount "76"]
[EventDate "2012.05.23"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 d6 2. Nc3 Nf6 3. d3 g6 4. Nh3 Bg7 5. Qf3 Bg4 6. Qg3 e5 7. Nd5 Nxd5 8. exd5 Bxh3 9. gxh3 c6 10. Be2 Qa5+ 11. c3 Qxd5 12. Bf3 Qe6 13. Bg5 Nd7 14. c4 h6 15. Bg4 f5 16. Bd2 fxg4 17. hxg4 g5 18. 0-0 Nf6 19. Rfe1 Qxg4 20. d4 Qxg3+ 21. fxg3 e4 22. d5 c5 23. h4 gxh4 24. gxh4 0-0-0 25. Rf1 Rhg8 26. Ba5 b6 27. Bc3 Ng4 28. Rac1 Bxc3 29. bxc3 Ne3+ 30. Kf2 Nxf1 31. Rxf1 Rdf8+ 32. Ke1 Rxf1+ 33. Kxf1 Rg4 34. Ke2 Rxh4 35. Kd2 Rh2+ 36. Kc1 Rxa2 37. Kd1 h5 38. Kc1 Rf2 0-1

[Event "PER-ch U20"]
[Site "Lima"]
[Date "2012.05.24"]
[Round "4"]
[White "Terrones Cabrera, George Luis"]
[Black "Espinoza Ortecho, Walter Yampier"]
[Result "0-1"]
[ECO "A40"]
[PlyCount "50"]
[EventDate "2012.05.23"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 e6 2. e3 Be7 3. Be2 Bh4 4. Bd2 Qf6 5. Qc1 d6 6. Kd1 Qxf2 7. c3 Qxg2 8. Bd3 Bd7 9. Nf3 Ba4+ 10. Bc2 Qxh1+ 11. Ke2 Qg2+ 12. Kd3 Bb5+ 13. c4 Ba6 14. Bb3 Qxf3 15. Kc2 Nc6 16. d5 Nd4+ 17. Kc3 Ne2+ 18. Kc2 Nxc1 19. Ba4+ c6 20. Bxc1 Qe2+ 21. Kc3 b5 22. Bb3 c5 23. Bc2 Be1+ 24. Kb3 Qxc4+ 25. Ka3 Qb4# 0-1

[Event "PER-ch U20"]
[Site "Lima"]
[Date "2012.05.23"]
[Round "1"]
[White "Espinoza Ortecho, Walter Yampier"]
[Black "Mamani, Joan Franco"]
[Result "0-1"]
[ECO "B06"]
[BlackElo "2104"]
[PlyCount "50"]
[EventDate "2012.05.23"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 g6 2. Bc4 Bg7 3. d3 e6 4. Nf3 Ne7 5. Ng5 0-0 6. Qf3 d5 7. Qh3 h6 8. Nf3 e5 9. Qh4 dxc4 10. Bxh6 Nec6 11. Ng5 Qf6 12. Bxg7 Qxg7 13. 0-0 Nd4 14. Na3 f6 15. Nf3 Nxf3+ 16. gxf3 cxd3 17. cxd3 Nc6 18. Nb5 a6 19. Na3 Nd4 20. Kg2 Ne6 21. Rfc1 Nf4+ 22. Kf1 Bh3+ 23. Kg1 g5 24. Qxf4 gxf4+ 25. Kh1 Qg2# 0-1

[Event "PER-ch U20"]
[Site "Lima"]
[Date "2012.05.23"]
[Round "2"]
[White "Paredes Aguilar, Carlos Manuel"]
[Black "Espinoza Ortecho, Walter Yampier"]
[Result "1-0"]
[ECO "A40"]
[PlyCount "59"]
[EventDate "2012.05.23"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. Nf3 Nc6 2. d4 e6 3. Nc3 Bb4 4. Bd2 Qe7 5. e3 d6 6. Bd3 e5 7. Nd5 Qd7 8. Nxb4 Nxb4 9. Bxb4 Qe7 10. dxe5 Bg4 11. 0-0 Nh6 12. Bb5+ c6 13. Ba4 Bxf3 14. Qxf3 Qh4 15. Qf4 Ng4 16. Bxd6 g5 17. Qg3 0-0-0 18. h3 Qxg3 19. fxg3 Nxe3 20. Rxf7 b5 21. Bb3 g4 22. Be6+ Rd7 23. Bxd7+ Kb7 24. Bc5 gxh3 25. Bxh3+ Kb8 26. Bxe3 Rg8 27. Rd1 Re8 28. Rdd7 Rc8 29. Rxa7 Rh8 30. Rfb7# 1-0

