[Event "CHN-ch U20"]
[Site "Shenzhen"]
[Date "2023.08.02"]
[Round "11"]
[White "Liu, Chuming"]
[Black "Zhang, Chenghan"]
[Result "1/2-1/2"]
[ECO "E19"]
[WhiteElo "1529"]
[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 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. 0-0 0-0 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. dxc5 bxc5 11. Qb3 Qb6 12. Qxb6 axb6 13. Bf4 Be4 14. Rfd1 d5 15. cxd5 Bxd5 16. a3 Nc6 17. Ne5 Bxg2 18. Kxg2 Nxe5 19. Bxe5 Rfd8 20. Bc7 Rdc8 21. Be5 Rd8 1/2-1/2

[Event "CHN-ch U20"]
[Site "Shenzhen"]
[Date "2023.08.01"]
[Round "9"]
[White "Zhang, Chenghan"]
[Black "Chen, Zhe1111"]
[Result "0-1"]
[ECO "C00"]
[PlyCount "60"]
[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 Nf6 3. Qe2 e6 4. d3 d5 5. g3 Be7 6. Bg2 Nc6 7. c3 b6 8. e5 Nd7 9. 0-0 0-0 10. h4 a5 11. Re1 b5 12. Nbd2 c4 13. d4 b4 14. Nf1 a4 15. a3 bxa3 16. bxa3 Na5 17. Rb1 Nb3 18. Bb2 Nb8 19. Ne3 Na6 20. Ng5 h6 21. Nh3 Nc7 22. Qh5 Rb8 23. Ng4 Ne8 24. Bc1 f5 25. Nxh6+ gxh6 26. Qg6+ Ng7 27. Bxh6 Rf7 28. Nf4 Qf8 29. Nxd5 exd5 30. Bxd5 Bb7 0-1

[Event "CHN-ch U20"]
[Site "Shenzhen"]
[Date "2023.07.31"]
[Round "8"]
[White "Wang, Hanlin"]
[Black "Zhang, Chenghan"]
[Result "1/2-1/2"]
[ECO "B17"]
[WhiteElo "1351"]
[PlyCount "41"]
[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 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Ng3 e6 7. Bd3 Be7 8. 0-0 0-0 9. c3 c5 10. Re1 b6 11. Qc2 cxd4 12. Nxd4 Bb7 13. Ne4 Rc8 14. Bg5 h6 15. Bh4 Nxe4 16. Bxe7 Qxe7 17. Bxe4 Bxe4 18. Qxe4 Nf6 19. Qf3 Qc5 20. Re2 Rfd8 21. Rae1 1/2-1/2

[Event "CHN-ch U20"]
[Site "Shenzhen"]
[Date "2023.07.31"]
[Round "7"]
[White "Zhang, Chenghan"]
[Black "Chen, Shen"]
[Result "1-0"]
[ECO "B13"]
[PlyCount "41"]
[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 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 e6 6. Bf4 Bd6 7. Bxd6 Qxd6 8. Nf3 Nge7 9. 0-0 h6 10. Re1 Ng6 11. Bxg6 fxg6 12. Qc2 Ne7 13. Ne5 0-0 14. Nxg6 Nxg6 15. Qxg6 Qf4 16. Qc2 e5 17. dxe5 Bf5 18. Qd2 Be4 19. Qxf4 Rxf4 20. Nd2 Bd3 21. Re3 1-0

[Event "CHN-ch U20"]
[Site "Shenzhen"]
[Date "2023.07.30"]
[Round "5"]
[White "Zhang, Chenghan"]
[Black "Lu, Zhangpeng"]
[Result "1/2-1/2"]
[ECO "C11"]
[PlyCount "41"]
[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. Nc3 Nf6 4. e5 Nfd7 5. Nce2 c5 6. c3 Nc6 7. Nf3 Be7 8. a3 cxd4 9. cxd4 f6 10. exf6 Bxf6 11. Nf4 Qe7 12. h3 0-0 13. Be2 Qd6 14. Nh5 Be7 15. 0-0 e5 16. dxe5 Ndxe5 17. Nxe5 Qxe5 18. Bg4 Bxg4 19. Qxg4 g6 20. Nf4 Nd4 21. Nd3 1/2-1/2

[Event "CHN-ch U20"]
[Site "Shenzhen"]
[Date "2023.07.30"]
[Round "6"]
[White "Zhang, Fuhan"]
[Black "Zhang, Chenghan"]
[Result "1-0"]
[ECO "E19"]
[WhiteElo "2099"]
[PlyCount "51"]
[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 e6 3. g3 b6 4. Bg2 Bb7 5. 0-0 Be7 6. c4 0-0 7. Nc3 Ne4 8. Qd3 Nxc3 9. Qxc3 c5 10. dxc5 Bxc5 11. Rd1 Qe7 12. Ne5 Bxg2 13. Kxg2 Qf6 14. Be3 d6 15. Bxc5 dxc5 16. Rd6 Na6 17. Rad1 Rfd8 18. Rd7 Rf8 19. R1d3 Nb4 20. Rf3 Nxa2 21. Qe3 Qh6 22. Qxh6 gxh6 23. Nxf7 Kg7 24. Rf4 h5 25. Nd8+ Kg8 26. Rxf8+ 1-0

[Event "CHN-ch U20"]
[Site "Shenzhen"]
[Date "2023.07.29"]
[Round "4"]
[White "Hu, Zehan"]
[Black "Zhang, Chenghan"]
[Result "1/2-1/2"]
[ECO "C28"]
[WhiteElo "1626"]
[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. Bc4 Nc6 3. Nc3 Nf6 4. d3 Bb4 5. Nge2 d5 6. exd5 Nxd5 7. Bd2 Nxc3 8. Bxc3 Bxc3+ 9. Nxc3 0-0 10. 0-0 Re8 11. Re1 Be6 12. Bxe6 Rxe6 13. Re3 Nd4 14. Ne2 Nxe2+ 15. Qxe2 Qe7 16. Re1 Re8 17. Qd2 Qd6 18. Qc3 Kf8 19. h3 Qc6 20. Qxc6 Rxc6 21. c3 Rce6 1/2-1/2

[Event "CHN-ch U20"]
[Site "Shenzhen"]
[Date "2023.07.29"]
[Round "3"]
[White "Zhang, Yicheng1111"]
[Black "Zhang, Chenghan"]
[Result "1/2-1/2"]
[ECO "E24"]
[WhiteElo "1470"]
[PlyCount "57"]
[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 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. e3 0-0 8. cxd5 Nxd5 9. c4 Nf6 10. Bd3 cxd4 11. exd4 h6 12. Ne2 b6 13. 0-0 Nc6 14. Bb2 Ba6 15. Qa4 Bb7 16. Rad1 Qe7 17. Bb1 Rfd8 18. Qc2 g6 19. Rfe1 Rac8 20. Nf4 Na5 21. c5 bxc5 22. dxc5 Nd5 23. Nxd5 Bxd5 24. Qe2 Qxc5+ 25. Bd4 Qc7 26. Qe3 Kh7 27. Bxa7 Nc4 28. Qf2 Qa5 29. Bd4 1/2-1/2

[Event "CHN-ch U20"]
[Site "Shenzhen"]
[Date "2023.07.28"]
[Round "2"]
[White "Zhang, Chenghan"]
[Black "Li, Jiahong"]
[Result "0-1"]
[ECO "B04"]
[BlackElo "1715"]
[PlyCount "56"]
[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 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 dxe5 5. Nxe5 c6 6. c4 Nb4 7. Be3 Bf5 8. Nd3 e5 9. Nxb4 Bxb4+ 10. Nc3 Qa5 11. dxe5 Bxc3+ 12. bxc3 Qxc3+ 13. Bd2 Qxe5+ 14. Be2 0-0 15. 0-0 Rd8 16. Bc3 Rxd1 17. Bxe5 Rxa1 18. Rxa1 Nd7 19. Bf4 Re8 20. Bf3 Ne5 21. Bxe5 Rxe5 22. Rd1 g6 23. g4 Be6 24. Rc1 Ra5 25. Rb1 Bxc4 26. Rxb7 Rxa2 27. Bxc6 a5 28. Rd7 Be6 0-1

[Event "CHN-ch U20"]
[Site "Shenzhen"]
[Date "2023.07.28"]
[Round "1"]
[White "Zhang, Chenghan"]
[Black "Xu, Yiming"]
[Result "1/2-1/2"]
[ECO "B08"]
[BlackElo "1788"]
[PlyCount "56"]
[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 g6 2. d4 Bg7 3. Nf3 d6 4. h3 Nf6 5. Nc3 c6 6. a4 Qc7 7. Bc4 e5 8. dxe5 dxe5 9. 0-0 0-0 10. Be3 b6 11. Qe2 a5 12. Rfd1 Na6 13. Rd2 Nb4 14. Rad1 h6 15. Rd6 Kh7 16. R6d2 Bb7 17. Ne1 Rae8 18. Nd3 Re7 19. f3 Nd7 20. Nxb4 axb4 21. Na2 c5 22. c3 f5 23. exf5 gxf5 24. cxb4 e4 25. f4 Ra8 26. Nc3 Bxc3 27. bxc3 Nf6 28. Rd6 Ne8 1/2-1/2

