[Event "ECU-ch Schools U13 Clas2"]
[Site "Chess.com INT"]
[Date "2020.11.20"]
[Round "7"]
[White "Andrade Tomin, Alejandro Sebastian"]
[Black "Larco Chile, Cristobal Sebastian"]
[Result "1-0"]
[ECO "C49"]
[PlyCount "99"]
[EventDate "2020.11.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. d3 0-0 6. Bg5 d6 7. a3 a6 8. axb4 axb5 9. Rxa8 Nxb4 10. Ra4 Nc6 11. Ra3 b4 12. Rb3 Be6 13. d4 Bxb3 14. cxb3 exd4 15. Nxd4 Nxd4 16. Qxd4 c5 17. Qe3 h6 18. Nd5 hxg5 19. Qxg5 Nxe4 20. 0-0 Nxg5 21. Re1 Ne4 22. Rxe4 c4 23. Rxc4 Qg5 24. Nxb4 Qd2 25. g3 Qe1+ 26. Kg2 d5 27. Rd4 f5 28. Nxd5 Re8 29. Nf4 Re4 30. Rd8+ Kf7 31. Rd7+ Ke8 32. Rxg7 Rxf4 33. gxf4 b5 34. Rg8+ Kf7 35. Rb8 Kg6 36. Rxb5 Kf6 37. Rb6+ Ke7 38. Rb7+ Kd6 39. Rb8 Kd5 40. Rd8+ Ke4 41. Re8+ Kxf4 42. Rxe1 Kg4 43. b4 Kf4 44. b5 Kg4 45. b6 Kf4 46. b7 Kg4 47. b8Q f4 48. Kg1 f3 49. Re4+ Kh3 50. Qh8# 1-0

[Event "ECU-ch Schools U13 Clas2"]
[Site "Chess.com INT"]
[Date "2020.11.20"]
[Round "4"]
[White "Andrade Tomin, Alejandro Sebastian"]
[Black "Loarte Jimenez, Edison Eduardo"]
[Result "0-1"]
[ECO "C48"]
[PlyCount "68"]
[EventDate "2020.11.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. d3 d6 6. Bg5 Be6 7. Bxc6+ bxc6 8. Bxf6 Qxf6 9. Qd2 0-0 10. h4 h6 11. Qe2 Bg4 12. Rg1 Rab8 13. Na4 h5 14. Nxc5 dxc5 15. Qe3 a6 16. Qxc5 Rxb2 17. Nh2 Qd6 18. Qxd6 cxd6 19. Nxg4 hxg4 20. g3 Rxc2 21. Kf1 Rd2 22. Kg2 Rxd3 23. Rgb1 d5 24. Rb6 dxe4 25. Rxc6 Rd2 26. Rc5 e3 27. Rxe5 exf2 28. Kf1 f6 29. Rc5 Rfd8 30. Rc6 R8d3 31. Rcc1 Rxg3 32. Rc8+ Kf7 33. Rc7+ Kg6 34. Re1 Rg1# 0-1

[Event "ECU-ch Schools U13 Clas2"]
[Site "Chess.com INT"]
[Date "2020.11.20"]
[Round "9"]
[White "Andrade Tomin, Alejandro Sebastian"]
[Black "Ramos Reategui, Mario Richardson"]
[Result "0-1"]
[ECO "C77"]
[PlyCount "32"]
[EventDate "2020.11.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d3 a6 6. Ba4 g6 7. Bg5 Bg7 8. Bxf6 Qxf6 9. Bxc6+ bxc6 10. Qd2 0-0 11. g4 Qxf3 12. Rg1 Bxg4 13. Qg5 h5 14. h4 d5 15. exd5 cxd5 16. Ne2 Qxe2# 0-1

[Event "ECU-ch Schools U13 Clas2"]
[Site "Chess.com INT"]
[Date "2020.11.20"]
[Round "2"]
[White "Andrade Tomin, Alejandro Sebastian"]
[Black "Rodriguez Portilla, Alexis Daniel"]
[Result "0-1"]
[ECO "C65"]
[PlyCount "56"]
[EventDate "2020.11.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d3 Bg4 6. Bg5 h6 7. Bh4 g5 8. Bg3 a6 9. Ba4 b5 10. Bb3 Bg7 11. Nd5 a5 12. a3 a4 13. Ba2 Nd4 14. Nxd4 Bxd1 15. Rxd1 exd4 16. Nxf6+ Bxf6 17. Bd5 Ra6 18. 0-0 c6 19. Ba2 h5 20. h3 g4 21. hxg4 hxg4 22. Rde1 Kd7 23. e5 dxe5 24. Bxe5 Bxe5 25. Rxe5 Qh4 26. Rd5+ cxd5 27. f3 g3 28. Bxd5 Qh1# 0-1

[Event "ECU-ch Schools U13 Clas2"]
[Site "Chess.com INT"]
[Date "2020.11.20"]
[Round "1"]
[White "Andrade Tomin, Alejandro Sebastian"]
[Black "Zambrano Davila, Victor Manuel"]
[Result "0-1"]
[ECO "B11"]
[PlyCount "68"]
[EventDate "2020.11.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. d3 Bxe4 6. dxe4 Qxd1+ 7. Kxd1 Nf6 8. Bg5 Nxe4 9. Bd3 Nxf2+ 10. Ke2 Nxh1 11. Rxh1 e6 12. Ne5 Nd7 13. Nxd7 Kxd7 14. Rf1 f6 15. Bxf6 gxf6 16. Rxf6 Be7 17. Rf7 Raf8 18. Rxf8 Rxf8 19. Bxh7 Bc5 20. Kd3 Rf2 21. b3 Rxg2 22. Kc3 Rxh2 23. Bd3 Rh3 24. Kb2 Bd4+ 25. Kc1 Bc3 26. Kd1 e5 27. Ke2 Kd6 28. Be4 Bd4 29. Bf5 Re3+ 30. Kd2 Rf3 31. Bc8 e4 32. Bxb7 e3+ 33. Ke2 Rf2+ 34. Kd3 Rd2+ 0-1

[Event "ECU-ch Schools U13 Clas2"]
[Site "Chess.com INT"]
[Date "2020.11.20"]
[Round "8"]
[White "Montalvo Uzhca, Nicolas Alejandro"]
[Black "Andrade Tomin, Alejandro Sebastian"]
[Result "1-0"]
[ECO "C28"]
[PlyCount "71"]
[EventDate "2020.11.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. Bc4 Bb4 5. d3 d6 6. a3 Ba5 7. 0-0 Bg4 8. h3 Bh5 9. Qe2 Nd4 10. Qd2 Nxf3+ 11. gxf3 Bxf3 12. Qe3 Bh5 13. b4 Nd7 14. bxa5 Qf6 15. a6 bxa6 16. Bxa6 Qg6+ 17. Kh2 0-0 18. Bb5 Rfe8 19. Bxd7 Re7 20. Bc6 h6 21. Bxa8 Re6 22. Bd5 Rf6 23. Qxa7 Bf3 24. Qb8+ Kh7 25. Rg1 Qh5 26. Be3 Rg6 27. Rxg6 Qxg6 28. Rg1 Qh5 29. Qxc7 Be2 30. Bxf7 Qf3 31. Bg6+ Kh8 32. Qxg7+ Kxg7 33. Bh5+ Qg4 34. Bxg4 Bxg4 35. Rxg4+ Kf6 36. a4 1-0

[Event "ECU-ch Schools U13 Clas2"]
[Site "Chess.com INT"]
[Date "2020.11.20"]
[Round "3"]
[White "Salazar Peralta, Edwin Elian"]
[Black "Andrade Tomin, Alejandro Sebastian"]
[Result "1-0"]
[ECO "C60"]
[WhiteElo "1178"]
[PlyCount "41"]
[EventDate "2020.11.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Bb4 5. c3 Ba5 6. Ba4 d6 7. Re1 Bg4 8. h3 Bh5 9. d3 Kf8 10. Nbd2 a6 11. Nf1 b5 12. Bc2 Ne7 13. Ng3 Ng6 14. Nxh5 Nxh5 15. Ng5 Ngf4 16. Bxf4 exf4 17. Nf3 Qf6 18. d4 c6 19. e5 Qg6 20. Bxg6 Bd8 21. Bxh5 1-0

[Event "ECU-ch Schools U13 Clas2"]
[Site "Chess.com INT"]
[Date "2020.11.20"]
[Round "6"]
[White "Vargas Salazar, Alvaro Matias"]
[Black "Andrade Tomin, Alejandro Sebastian"]
[Result "1-0"]
[ECO "C41"]
[PlyCount "55"]
[EventDate "2020.11.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 d6 4. dxe5 dxe5 5. Qxd8+ Nxd8 6. Nxe5 Nf6 7. Nc3 Nc6 8. Nxc6 bxc6 9. Bg5 Bb4 10. Bxf6 gxf6 11. Bc4 Bg4 12. f3 Bh5 13. 0-0 Bc5+ 14. Kh1 Rg8 15. Na4 Bd4 16. c3 Be3 17. Rfe1 Bf2 18. Re2 Bxf3 19. Rxf2 Rxg2 20. Rxg2 Bxg2+ 21. Kxg2 0-0-0 22. Ba6+ Kb8 23. Nc5 Rg8+ 24. Kf3 Rd8 25. Rg1 f5 26. Nd7+ Rxd7 27. Rg8+ Rd8 28. Rxd8# 1-0

[Event "ECU-ch Schools U13 Clas1"]
[Site "Chess.com INT"]
[Date "2020.11.18"]
[Round "6"]
[White "Andrade Tomin, Alejandro Sebastian"]
[Black "Burbano Garcia, Josue David"]
[Result "0-1"]
[ECO "B11"]
[PlyCount "122"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. Nc3 Bg4 4. exd5 cxd5 5. Bb5+ Nc6 6. d3 a6 7. Ba4 b5 8. Bb3 Rb8 9. Bxd5 Nd4 10. Bb3 a5 11. Bf4 Rb6 12. a3 Nxf3+ 13. gxf3 Bf5 14. Nd5 Re6+ 15. Ne3 Rd6 16. Nxf5 Rf6 17. Ne3 Rxf4 18. Nd5 Rf5 19. c4 bxc4 20. dxc4 Re5+ 21. Kf1 e6 22. Ba4+ Qd7 23. Bxd7+ Kxd7 24. Nf4+ Ke7 25. Qa4 Rf5 26. Nd3 Rxf3 27. Nc5 Kf6 28. Qd7 Bxc5 29. Qd8+ Be7 30. Qd4+ Kg5 31. Rg1+ Kh6 32. Qxg7+ Kh5 33. Qxh8 Nf6 34. Qg7 Bc5 35. Qxf7+ Kh6 36. Qxf6+ Rxf6 37. Rd1 e5 38. Rd7 e4 39. Rc7 Bd6 40. Ra7 Bxh2 41. Rg2 Bd6 42. Rxa5 e3 43. Rd5 exf2 44. Rxf2 Rxf2+ 45. Kxf2 Bf4 46. Ke2 Kg6 47. Kd3 h5 48. Rd7 h4 49. Rd8 Kg5 50. Rh8 Kg4 51. Ke2 h3 52. Kf1 Kg3 53. Kg1 h2+ 54. Kf1 Be3 55. Ke2 Bf4 56. c5 Be5 57. c6 Bxh8 58. Kd3 h1Q 59. Kc4 Qxc6+ 60. Kb3 Qb7+ 61. Ka2 Qxb2# 0-1

[Event "ECU-ch Schools U13 Clas1"]
[Site "Chess.com INT"]
[Date "2020.11.18"]
[Round "9"]
[White "Andrade Tomin, Alejandro Sebastian"]
[Black "Cando Tulcan, Roddick Luis"]
[Result "1-0"]
[ECO "B40"]
[PlyCount "57"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c4 e6 4. Nc3 Be7 5. g3 Nf6 6. Bg2 Nb4 7. d3 Nc6 8. Bg5 d6 9. d4 Bd7 10. d5 exd5 11. exd5 Nd4 12. Nxd4 cxd4 13. Qxd4 Qb6 14. Bxf6 Bxf6 15. Qe4+ Be7 16. 0-0 Qd8 17. Rae1 0-0 18. Qh4 Bxh4 19. gxh4 Qxh4 20. Re3 Rae8 21. Rg3 Qxc4 22. Kh1 Rc8 23. Rg1 Rc5 24. Bf3 Rfc8 25. Rxg7+ Kh8 26. Ne4 Qc1 27. Nf6 Qf4 28. Rg8+ Rxg8 29. Rxg8# 1-0

[Event "ECU-ch Schools U13 Clas1"]
[Site "Chess.com INT"]
[Date "2020.11.18"]
[Round "4"]
[White "Andrade Tomin, Alejandro Sebastian"]
[Black "Osorio Gonzalez, Jhampier Alexander"]
[Result "0-1"]
[ECO "C77"]
[PlyCount "90"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Bb5 a6 5. Ba4 b5 6. Bb3 Nf6 7. d3 0-0 8. Bg5 h6 9. a3 Be7 10. Qd2 d6 11. Bxh6 gxh6 12. Qxh6 Nh7 13. Nd5 Bg5 14. Nxg5 Qxg5 15. Nf6+ Qxf6 16. Qxf6 Nxf6 17. g3 Nd4 18. h4 Be6 19. 0-0-0 Bxb3 20. cxb3 Nxb3+ 21. Kc2 Nd4+ 22. Kc3 c5 23. h5 Kh7 24. Rdg1 a5 25. g4 b4+ 26. Kc4 Nf3 27. g5 Nxg1 28. Rxg1 Nxh5 29. Kd5 Rad8 30. Kc6 Nf4 31. Kb5 Nxd3 32. Kxa5 Nxf2 33. Kb5 Nxe4 34. Kc4 Kg6 35. Kd5 Rh8 36. Kxe4 Rh4+ 37. Kd5 Rh5 38. Kc4 Rxg5 39. axb4 Rxg1 40. bxc5 dxc5 41. Kxc5 e4 42. b4 e3 43. b5 Rb1 44. b6 e2 45. b7 Rxb7 0-1

[Event "ECU-ch Schools U13 Clas1"]
[Site "Chess.com INT"]
[Date "2020.11.18"]
[Round "7"]
[White "Andrade Tomin, Alejandro Sebastian"]
[Black "Toala Ullon, Francisco Javier"]
[Result "1/2-1/2"]
[ECO "C71"]
[PlyCount "94"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 d6 4. Bb5 a6 5. Ba4 b5 6. Bb3 Bg4 7. d3 Nf6 8. Bg5 h6 9. Bh4 g5 10. Bg3 Nb4 11. Nd5 Nbxd5 12. exd5 Nh5 13. Qd2 Nf4 14. Bxf4 exf4 15. h3 Bf5 16. g4 Bg6 17. Qe2+ Be7 18. Nd4 0-0 19. Nf5 Bxf5 20. gxf5 Qe8 21. 0-0-0 Rb8 22. Qh5 Kh7 23. h4 Rg8 24. hxg5 Bxg5 25. Rdg1 f6 26. Rg2 Bh4 27. Rxh4 Rxg2 28. Qxh6+ Kg8 29. Qh7+ Kf8 30. Qh8+ Rg8 31. Qxf6+ Qf7 32. Qh6+ Rg7 33. Qh8+ Rg8 34. Qh6+ Rg7 35. Rg4 Kg8 36. Rh4 Qxf5 37. Qh8+ Kf7 38. Qxb8 Kg6 39. Qe8+ Kf6 40. Rh6+ Kg5 41. Qd8+ Kxh6 42. Qh4+ Kg6 43. Qd8 Kh7 44. Qh4+ Kg8 45. Qd8+ Kh7 46. Qh4+ Kg8 47. Qd8+ Kh7 1/2-1/2

[Event "ECU-ch Schools U13 Clas1"]
[Site "Chess.com INT"]
[Date "2020.11.18"]
[Round "8"]
[White "Calva Naranjo, Zadquiel Gabriel"]
[Black "Andrade Tomin, Alejandro Sebastian"]
[Result "1-0"]
[ECO "C55"]
[PlyCount "35"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Bb4 5. Ng5 d6 6. Nxf7 Qe7 7. a3 Rf8 8. Ng5 d5 9. exd5 Na5 10. d3 Bc5 11. b4 h6 12. bxa5 Ng4 13. h4 Nxf2 14. Qh5+ Rf7 15. 0-0 Nh3+ 16. Kh2 Kd8 17. Nxf7+ Kd7 18. Qg4+ 1-0

[Event "ECU-ch Schools U13 Clas1"]
[Site "Chess.com INT"]
[Date "2020.11.18"]
[Round "5"]
[White "Loarte Jimenez, Edison Eduardo"]
[Black "Andrade Tomin, Alejandro Sebastian"]
[Result "0-1"]
[ECO "C47"]
[PlyCount "74"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. g3 Nf6 4. Nc3 d6 5. Bg2 Bg4 6. 0-0 g6 7. d3 Bg7 8. Bg5 0-0 9. a3 Bh3 10. Bxh3 Qe7 11. Nd5 Qd8 12. Nxf6+ Bxf6 13. b4 Bxg5 14. Nxg5 Qxg5 15. b5 Nd4 16. a4 Qh5 17. Bg4 Qg5 18. c3 Ne6 19. Rb1 f5 20. exf5 gxf5 21. Bf3 f4 22. Bd5 fxg3 23. fxg3 Rae8 24. a5 Kh8 25. Qe1 Nf4 26. Qd2 Nh3+ 27. Kg2 Qg4 28. Bxb7 Nf4+ 29. Kf2 Nxd3+ 30. Ke3 Rf3+ 31. Ke2 Qe4+ 32. Kd1 Rxf1+ 33. Kc2 Nb4+ 34. Kb2 Rxb1+ 35. Ka3 Qc4 36. Qa2 Rb3+ 37. Ka4 Nc2# 0-1

[Event "ECU-ch Schools U13 Clas1"]
[Site "Chess.com INT"]
[Date "2020.11.18"]
[Round "3"]
[White "Villalva Hidalgo, Erick Rafael"]
[Black "Andrade Tomin, Alejandro Sebastian"]
[Result "1/2-1/2"]
[ECO "C55"]
[PlyCount "49"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 Bb4 5. a3 Ba5 6. b4 Bb6 7. d3 d6 8. Bg5 Bg4 9. Nd5 a6 10. h3 Bh5 11. g4 Bg6 12. Nh4 h6 13. Be3 Nxd5 14. Bxd5 Qxh4 15. Qf3 Nd4 16. Qe2 Nxc2+ 17. Qxc2 Bxe3 18. Ke2 Qxf2+ 19. Kd1 Qf3+ 20. Ke1 Bf2+ 21. Kd2 Be3+ 22. Ke1 Bf2+ 23. Kd2 Qe3+ 24. Kd1 Qf3+ 25. Kd2 1/2-1/2

