[Event "CHN-ch U16"]
[Site "Shenzhen"]
[Date "2023.08.02"]
[Round "11"]
[White "Jiang, Ziming"]
[Black "Yu, Yifan"]
[Result "0-1"]
[ECO "B41"]
[PlyCount "52"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Be2 Nf6 6. f3 Qc7 7. 0-0 Bc5 8. Kh1 Be7 9. Nc3 b5 10. a3 Bb7 11. Be3 d5 12. exd5 Nxd5 13. Nxd5 Bxd5 14. Rc1 Nd7 15. Nf5 Bf6 16. c3 Qe5 17. Bd3 exf5 18. Re1 Be6 19. Bd4 Qd5 20. Bxf6 Nxf6 21. c4 bxc4 22. Rxc4 0-0 23. Rc2 Qb3 24. Qe2 Rfe8 25. Rd1 Qb6 26. Qe5 Bb3 0-1

[Event "CHN-ch U16"]
[Site "Shenzhen"]
[Date "2023.08.01"]
[Round "9"]
[White "Chen, Siyu2222"]
[Black "Yu, Yifan"]
[Result "1/2-1/2"]
[ECO "B43"]
[PlyCount "54"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be3 b5 7. a3 Nf6 8. f3 Bb7 9. Qd2 d6 10. 0-0-0 Nbd7 11. Ndxb5 axb5 12. Nxb5 Qc6 13. Nxd6+ Bxd6 14. Qxd6 Qxd6 15. Rxd6 Ke7 16. Rd2 Rhc8 17. Bb5 Bc6 18. Bxc6 Rxc6 19. Rhd1 Rc7 20. Bg5 h6 21. Bh4 g5 22. Bg3 e5 23. Rd6 Rac8 24. c3 Rc6 25. Rxc6 Rxc6 26. Kc2 Nh5 27. Bf2 Nf4 1/2-1/2

[Event "CHN-ch U14 Girls"]
[Site "Shenzhen"]
[Date "2023.08.01"]
[Round "10"]
[White "Li, Shutong"]
[Black "Yu, Yifan"]
[Result "1/2-1/2"]
[ECO "A53"]
[WhiteElo "1330"]
[PlyCount "44"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nf3 c5 4. d5 d6 5. Nc3 e5 6. e4 Bg4 7. Be2 Be7 8. h3 Bh5 9. 0-0 0-0 10. Be3 Nbd7 11. a3 b6 12. Nd2 Bg6 13. Bf3 h6 14. b4 Nh7 15. Bh5 Bxh5 16. Qxh5 Bg5 17. Bxg5 Nxg5 18. Qe2 a6 19. b5 a5 20. a4 Qc7 21. Nd1 Rae8 22. Ne3 g6 1/2-1/2

[Event "CHN-ch U14 Girls"]
[Site "Shenzhen"]
[Date "2023.08.01"]
[Round "9"]
[White "Yu, Yifan"]
[Black "Guo, Shiran"]
[Result "0-1"]
[ECO "B90"]
[PlyCount "50"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a3 e5 7. Nf3 Be6 8. Bg5 Be7 9. Qd2 Nbd7 10. Bxf6 Nxf6 11. Ng5 Rc8 12. Nxe6 fxe6 13. f3 0-0 14. Bd3 Qb6 15. Rb1 d5 16. exd5 exd5 17. b4 Qc6 18. Rb3 Rcd8 19. b5 axb5 20. Bxb5 Qe6 21. Qe2 Kh8 22. 0-0 Bc5+ 23. Kh1 Nh5 24. Re1 Ng3+ 25. hxg3 Qh6# 0-1

[Event "CHN-ch U16"]
[Site "Shenzhen"]
[Date "2023.08.01"]
[Round "10"]
[White "Yu, Yifan"]
[Black "Hu, Zhongtian"]
[Result "0-1"]
[ECO "E67"]
[PlyCount "94"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 0-0 5. Bg2 d6 6. Nf3 Nbd7 7. 0-0 e5 8. d5 Nb6 9. Qd3 Nfd7 10. Nd2 Nc5 11. Qc2 a5 12. e4 f5 13. a3 fxe4 14. Ncxe4 Bf5 15. b3 c6 16. Qd1 cxd5 17. cxd5 Nxe4 18. Nxe4 Bxe4 19. Bxe4 Nd7 20. Be3 Nf6 21. Bg2 Qd7 22. h3 Rac8 23. Qd2 Qb5 24. Rab1 Kh8 25. b4 a4 26. Rbc1 e4 27. Rxc8 Rxc8 28. Rd1 Qc4 29. Rc1 Qxc1+ 30. Qxc1 Rxc1+ 31. Bxc1 b6 32. Kf1 Kg8 33. Bf4 Nxd5 34. Bxd6 Nc3 35. Ke1 Kf7 36. Bc7 Bd4 37. Bf4 Ke6 38. Bd2 Kd5 39. f3 exf3 40. Bxf3+ Kc4 41. Bc6 Kb3 42. Bc1 Kc2 43. Bf4 Kb3 44. Bc1 Kc2 45. Bf4 Kb2 46. Bd2 Kxa3 47. b5 Kb2 0-1

[Event "CHN-ch U16"]
[Site "Shenzhen"]
[Date "2023.07.31"]
[Round "7"]
[White "Geng, Guosen"]
[Black "Yu, Yifan"]
[Result "1/2-1/2"]
[ECO "C00"]
[PlyCount "66"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. d3 e6 3. Ne2 Qc7 4. g3 Nc6 5. Bg2 Nf6 6. 0-0 Be7 7. Nd2 0-0 8. f4 d6 9. Nf3 a6 10. h3 Rd8 11. g4 Bf8 12. c3 b6 13. Qe1 b5 14. g5 Ne8 15. Qg3 Ne7 16. Nh2 Bb7 17. Ng4 Rab8 18. h4 d5 19. h5 c4 20. dxc4 Qxc4 21. Nd4 dxe4 22. Ne5 Qc7 23. g6 hxg6 24. hxg6 Nxg6 25. Nxg6 fxg6 26. Qxg6 Qf7 27. Qxe6 Qxe6 28. Nxe6 Rd6 29. f5 Rc8 30. Be3 Rd3 31. Bd4 Rg3 32. Kf2 Rg4 33. Bh3 Rh4 1/2-1/2

[Event "CHN-ch U16"]
[Site "Shenzhen"]
[Date "2023.07.31"]
[Round "8"]
[White "Yu, Yifan"]
[Black "Ni, Fuzheng"]
[Result "1/2-1/2"]
[ECO "E07"]
[PlyCount "55"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. g3 Nf6 4. Bg2 e6 5. Nf3 Be7 6. 0-0 0-0 7. Qc2 Nbd7 8. cxd5 exd5 9. Bf4 Nh5 10. Bd2 Nhf6 11. Nc3 Re8 12. Bf4 Nh5 13. Bd2 Nhf6 14. Nh4 Nb6 15. Rad1 Nc4 16. Nf5 Bf8 17. Nh4 Nd6 18. Bg5 h6 19. Bxf6 Qxf6 20. Nf3 Bf5 21. Qc1 Bh7 22. Ne5 Qd8 23. Rfe1 Qb6 24. Qd2 Rad8 25. Na4 Qc7 26. Nc3 Qb6 27. Na4 Qc7 28. Nc3 1/2-1/2

[Event "CHN-ch U14 Girls"]
[Site "Shenzhen"]
[Date "2023.07.31"]
[Round "7"]
[White "Yu, Yifan"]
[Black "Peng, Yaqi"]
[Result "1/2-1/2"]
[ECO "C01"]
[BlackElo "1289"]
[PlyCount "40"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Bd3 Bd6 6. Qe2+ Qe7 7. Qxe7+ Bxe7 8. Bf4 c6 9. 0-0 0-0 10. Re1 Re8 11. h3 Nbd7 12. Nbd2 b6 13. Re2 Bb7 14. Rae1 Bf8 15. Kf1 Rxe2 16. Rxe2 Re8 17. c3 Rxe2 18. Kxe2 g6 19. Ne5 Be7 20. Nxd7 Nxd7 1/2-1/2

[Event "CHN-ch U14 Girls"]
[Site "Shenzhen"]
[Date "2023.07.30"]
[Round "6"]
[White "Chen, Jinyan"]
[Black "Yu, Yifan"]
[Result "1-0"]
[ECO "E10"]
[WhiteElo "1504"]
[PlyCount "63"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nf3 c5 4. d5 d6 5. Nc3 e5 6. e4 Be7 7. h3 h6 8. Be3 Bd7 9. Be2 Qb6 10. Rb1 a5 11. b3 Na6 12. a3 Qd8 13. Nd2 Nh7 14. Nb5 b6 15. h4 Bxb5 16. cxb5 Nc7 17. g3 Qd7 18. a4 Nf6 19. Nc4 Rb8 20. Bf3 h5 21. Qe2 Ng4 22. Bd2 f5 23. exf5 Qxf5 24. Be4 Qf7 25. Bg5 Nxd5 26. Qd2 Bxg5 27. hxg5 Qxf2+ 28. Qxf2 Nxf2 29. Kxf2 Nc3 30. Nxd6+ Ke7 31. Rbc1 Nxe4+ 32. Nxe4 1-0

[Event "CHN-ch U16"]
[Site "Shenzhen"]
[Date "2023.07.30"]
[Round "5"]
[White "Li, Juchen"]
[Black "Yu, Yifan"]
[Result "1/2-1/2"]
[ECO "D30"]
[PlyCount "40"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 e6 4. c4 c6 5. e3 Bd6 6. Bg3 Ne4 7. Nc3 Nxg3 8. hxg3 Nd7 9. Bd3 Nf6 10. 0-0 0-0 11. e4 dxe4 12. Nxe4 Nxe4 13. Bxe4 Re8 14. Qc2 g6 15. Rad1 Qf6 16. Qc3 c5 17. dxc5 Qxc3 18. bxc3 Bxc5 19. Rb1 Rb8 20. Ne5 Bd6 1/2-1/2

[Event "CHN-ch U16"]
[Site "Shenzhen"]
[Date "2023.07.30"]
[Round "6"]
[White "Yu, Yifan"]
[Black "Cai, Shibang"]
[Result "0-1"]
[ECO "E17"]
[BlackElo "1033"]
[PlyCount "52"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 b6 7. Qc2 Bb7 8. cxd5 exd5 9. Bf4 c5 10. Nc3 Bd6 11. Bxd6 Qxd6 12. Rad1 Nc6 13. dxc5 bxc5 14. Ng5 Nb4 15. Qb1 h6 16. Nge4 Nxe4 17. Nxe4 Qe7 18. Nc3 d4 19. Bxb7 Qxb7 20. Ne4 Qe7 21. a3 Nd5 22. Rfe1 Rfe8 23. Nd2 Rab8 24. Qc2 Rb6 25. Rb1 Re6 26. Nf3 Rxe2 0-1

[Event "CHN-ch U14 Girls"]
[Site "Shenzhen"]
[Date "2023.07.30"]
[Round "5"]
[White "Yu, Yifan"]
[Black "Liu, Xinrui"]
[Result "1/2-1/2"]
[ECO "B40"]
[BlackElo "1284"]
[PlyCount "42"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 e6 4. d3 d6 5. Be3 Nf6 6. Be2 Be7 7. 0-0 0-0 8. d4 cxd4 9. Nxd4 a6 10. a3 Nxd4 11. Bxd4 d5 12. e5 Nd7 13. Kh1 Bc5 14. Bxc5 Nxc5 15. Qd4 Nd7 16. f4 Qb6 17. Qd2 Re8 18. Rab1 Nf8 19. Bd3 Qd8 20. Rf3 f6 21. Rbf1 f5 1/2-1/2

[Event "CHN-ch U14 Girls"]
[Site "Shenzhen"]
[Date "2023.07.29"]
[Round "4"]
[White "Ding, Xingyi"]
[Black "Yu, Yifan"]
[Result "0-1"]
[ECO "D05"]
[WhiteElo "1203"]
[PlyCount "69"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 Nf6 3. e3 b6 4. Bd3 Bb7 5. 0-0 c5 6. b3 Be7 7. Bb2 0-0 8. Nbd2 d5 9. Ne5 Nbd7 10. f4 Ne4 11. Rf3 Nxd2 12. Bxh7+ Kh8 13. Rh3 Nf6 14. Bd3+ Kg8 15. Qxd2 g6 16. Qe2 Kg7 17. Ng4 c4 18. bxc4 Nxg4 19. Qxg4 f5 20. Qg3 Qd6 21. Qe1 Bf6 22. a4 dxc4 23. Ba3 Qc6 24. Bxf8+ Rxf8 25. Bf1 Qe4 26. Qc3 Rc8 27. Rf3 Qd5 28. Rf2 Bh4 29. Rd2 Be7 30. Rb1 a5 31. Rdd1 Bb4 32. Qb2 c3 33. Qb3 Qe4 34. Kf2 Bd5 35. Qxd5 0-1

[Event "CHN-ch U16"]
[Site "Shenzhen"]
[Date "2023.07.29"]
[Round "4"]
[White "Yu, Yifan"]
[Black "Sun, Zhengxuan"]
[Result "1/2-1/2"]
[ECO "E04"]
[PlyCount "42"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. g3 Nf6 4. Bg2 dxc4 5. Nf3 c5 6. 0-0 Nc6 7. dxc5 Bxc5 8. Qc2 Qb6 9. Qxc4 0-0 10. Nbd2 Be7 11. a3 a5 12. b3 Bd7 13. Bb2 Rac8 14. Qd3 Rfd8 15. Qb1 Qa6 16. Re1 Qa7 17. Ne4 Nxe4 18. Qxe4 Bc5 19. e3 Be7 20. Qg4 g6 21. Ng5 h5 1/2-1/2

[Event "CHN-ch U14 Girls"]
[Site "Shenzhen"]
[Date "2023.07.28"]
[Round "2"]
[White "Liang, Wenbo"]
[Black "Yu, Yifan"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "1054"]
[PlyCount "54"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bf4 Nf6 5. Bd3 Bd6 6. Ne2 0-0 7. 0-0 c6 8. c3 Bg4 9. Bxd6 Qxd6 10. h3 Bh5 11. Qc2 Nbd7 12. Ng3 Bg6 13. Nd2 Bxd3 14. Qxd3 Rfe8 15. Rfe1 b6 16. Nf3 c5 17. dxc5 bxc5 18. Nf5 Qb6 19. Ne7+ Kh8 20. Ng5 Rf8 21. Nxd5 Qxb2 22. Nxf6 Nxf6 23. Qc4 Kg8 24. Qxc5 Rac8 25. Qxa7 Qxc3 26. a4 h6 27. Nf3 Ra8 1/2-1/2

[Event "CHN-ch U16"]
[Site "Shenzhen"]
[Date "2023.07.28"]
[Round "2"]
[White "Ma, Zhengyu"]
[Black "Yu, Yifan"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "40"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 Nf6 4. e5 Nd5 5. d4 cxd4 6. cxd4 d6 7. Be2 Nc6 8. exd6 Bxd6 9. 0-0 h6 10. Nc3 Nxc3 11. bxc3 0-0 12. Re1 Qc7 13. c4 Bb4 14. Bd2 Bxd2 15. Qxd2 Rd8 16. Qe3 Ne7 17. Red1 Nf5 18. Qe4 Nd6 19. Qf4 Ne8 20. Qh4 Nf6 1-0

[Event "CHN-ch U14 Girls"]
[Site "Shenzhen"]
[Date "2023.07.28"]
[Round "1"]
[White "Yu, Yifan"]
[Black "Gao, Zixin"]
[Result "1/2-1/2"]
[ECO "C54"]
[PlyCount "42"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. c3 Bc5 5. d3 a5 6. Bg5 Be7 7. Nbd2 0-0 8. h4 h6 9. Be3 d6 10. Nf1 Bg4 11. N1h2 Bh5 12. Qc1 Kh7 13. Rg1 Ng4 14. Nxg4 Bxg4 15. Nh2 Bd7 16. h5 Bg5 17. g4 Bxe3 18. Qxe3 Qg5 19. Qxg5 hxg5 20. Nf3 f6 21. d4 Be6 1/2-1/2

[Event "CHN-ch U16"]
[Site "Shenzhen"]
[Date "2023.07.28"]
[Round "1"]
[White "Yu, Yifan"]
[Black "Zhu, Zikun"]
[Result "0-1"]
[ECO "A62"]
[BlackElo "1423"]
[PlyCount "68"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nc3 c5 6. d5 d6 7. Nf3 e6 8. 0-0 exd5 9. cxd5 a6 10. a4 b6 11. Re1 Re8 12. Bg5 Qc7 13. Qc2 Nbd7 14. e4 Ng4 15. h3 Nge5 16. Nxe5 Nxe5 17. Bf4 c4 18. Bxe5 Bxe5 19. Rac1 Qc5 20. b3 cxb3 21. Qxb3 Bxg3 22. Nd1 Qxc1 23. Qxg3 Bd7 24. Rf1 Qc5 25. Nb2 Rac8 26. Kh2 Qb4 27. Nd3 Qa3 28. Qe3 Rc3 29. Rd1 Bxa4 30. Rd2 Bb5 31. Bf1 Qa1 32. Be2 Qa4 33. Qf4 Qxe4 34. Qxe4 Rxe4 0-1

