[Event "Leiden op-A 13th"]
[Site "Leiden"]
[Date "2019.07.13"]
[Round "2"]
[White "Al Hajiri, Bader"]
[Black "Cchung, Chi Yun"]
[Result "1-0"]
[ECO "B41"]
[WhiteElo "2077"]
[BlackElo "1945"]
[PlyCount "91"]
[EventDate "2019.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd3 Nc6 8. Nf3 Qc7 9. 0-0 0-0 10. Re1 Bxc3 11. bxc3 d6 12. Bf4 Ne5 13. Bf1 b6 14. Rb1 Bb7 15. Qd4 Nfd7 16. Red1 Rfd8 17. Qxd6 Qxd6 18. Rxd6 Bxe4 19. Rbd1 Nxf3+ 20. gxf3 Bxf3 21. R1d3 Bg4 22. f3 Bf5 23. Rxd7 Bxd3 24. Rxd3 Rxd3 25. Bxd3 Rd8 26. Bf1 Rc8 27. Kf2 Kf8 28. Bd6+ Ke8 29. c5 bxc5 30. Bxa6 Ra8 31. Bb5+ Kd8 32. a4 Kc8 33. Bxc5 Kc7 34. c4 f5 35. Bd4 g5 36. c5 h5 37. Be5+ Kc8 38. c6 Ra5 39. Ke3 g4 40. fxg4 fxg4 41. Kd4 h4 42. Kc5 Ra7 43. Kb6 Rh7 44. c7 Rxc7 45. Bxc7 g3 46. Kc6 1-0

[Event "Leiden op-A 13th"]
[Site "Leiden"]
[Date "2019.07.12"]
[Round "1"]
[White "Cchung, Chi Yun"]
[Black "Suvrajit, Saha"]
[Result "0-1"]
[ECO "C97"]
[WhiteElo "1945"]
[BlackElo "2189"]
[PlyCount "56"]
[EventDate "2019.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Be7 7. Re1 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. d5 Nc4 13. b3 Nb6 14. a4 bxa4 15. bxa4 Bd7 16. a5 Nc4 17. Qd3 Nxa5 18. Nxe5 dxe5 19. d6 Bxd6 20. Rxa5 c4 21. Qd1 Qxa5 22. Qxd6 Rfd8 23. Qd1 Bg4 24. hxg4 Rxd1 25. Bxd1 Rb8 26. Nd2 Qxc3 27. Bf3 Rb1 28. g5 Rxc1 0-1

[Event "Leiden Noteboom Memorial 79th"]
[Site "Leiden"]
[Date "2019.02.22"]
[Round "1"]
[White "Cchung, Chi Yun"]
[Black "Elgersma, Onno"]
[Result "0-1"]
[ECO "B15"]
[WhiteElo "1840"]
[BlackElo "2134"]
[PlyCount "62"]
[EventDate "2019.02.22"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. c3 Bd6 7. Bd3 0-0 8. Ne2 Re8 9. 0-0 Qc7 10. g3 Bh3 11. Re1 Bg4 12. Qc2 h6 13. Bf4 g5 14. Bxd6 Qxd6 15. Bc4 Be6 16. Nc1 Kg7 17. Nd3 Nd7 18. Bb3 Bf5 19. Qd1 a5 20. Qf3 Bg6 21. Rxe8 Rxe8 22. Re1 Rxe1+ 23. Nxe1 b5 24. Ng2 a4 25. Bd1 c5 26. dxc5 Nxc5 27. Ne3 Nd3 28. b3 Qe5 29. c4 bxc4 30. Nxc4 Qe1+ 31. Kg2 Be4 0-1

[Event "Leiden op-B 12th"]
[Site "Leiden"]
[Date "2018.07.22"]
[Round "9"]
[White "Cchung, Chi Yun"]
[Black "Hoogeveen, Luuk"]
[Result "1-0"]
[ECO "B09"]
[WhiteElo "1791"]
[BlackElo "1647"]
[PlyCount "41"]
[EventDate "2018.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. e6 Bxb5 9. exf7+ Kf8 10. Nxb5 Qa5+ 11. Nc3 cxd4 12. Nxd4 Kxf7 13. 0-0 Qc5 14. Qxg4 Bxd4+ 15. Kh1 Bxc3 16. bxc3 b6 17. f5 Kg7 18. Qh4 Qe5 19. Qh6+ Kg8 20. fxg6 hxg6 21. Rf8# 1-0

[Event "Leiden op-B 12th"]
[Site "Leiden"]
[Date "2018.07.21"]
[Round "8"]
[White "Koes, Richard"]
[Black "Cchung, Chi Yun"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "1762"]
[BlackElo "1791"]
[PlyCount "79"]
[EventDate "2018.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. Nc3 d5 2. e4 d4 3. Nce2 e5 4. Ng3 Be6 5. Nf3 f6 6. Bb5+ c6 7. Be2 Ne7 8. 0-0 Ng6 9. d3 Qd7 10. c3 c5 11. cxd4 cxd4 12. Nh5 Nc6 13. Ne1 Qf7 14. f4 exf4 15. Nxf4 Bxa2 16. Bg4 Bb3 17. Qe2 Nxf4 18. Bxf4 Be6 19. Bh5 g6 20. Bf3 Bg7 21. Bd6 Qd7 22. Ba3 Ne7 23. Nc2 0-0 24. Rac1 Rfd8 25. Kh1 Nc6 26. Qf2 Rac8 27. Nb4 Ne5 28. Be2 a5 29. Nd5 Bxd5 30. exd5 Rxc1 31. Rxc1 Qxd5 32. Rc7 f5 33. Qh4 Re8 34. Be7 Ng4 35. Bxg4 fxg4 36. Bf6 Bxf6 37. Qxh7+ Kf8 38. Qh6+ Kg8 39. Qxg6+ Kf8 40. Qxf6+ 1-0

[Event "Leiden op-B 12th"]
[Site "Leiden"]
[Date "2018.07.20"]
[Round "7"]
[White "Cchung, Chi Yun"]
[Black "Salomons, Quinten"]
[Result "1-0"]
[ECO "B09"]
[WhiteElo "1791"]
[BlackElo "1677"]
[PlyCount "65"]
[EventDate "2018.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 c5 5. dxc5 Qa5 6. cxd6 Nxe4 7. Qd5 Nc5 8. Bb5+ Bd7 9. Qxc5 Nc6 10. Qf2 Bg7 11. Bd2 0-0 12. Bxc6 Bxc6 13. Nf3 exd6 14. 0-0 Qf5 15. Rac1 b5 16. Nd4 Qd7 17. f5 Rfe8 18. f6 Bf8 19. Qh4 d5 20. Rce1 Bc5 21. Kh1 b4 22. Nd1 Re4 23. Rxe4 dxe4 24. Nb3 Bf8 25. Bh6 Bd6 26. Ne3 Bb5 27. Rd1 Qc7 28. Nf5 Rd8 29. Nbd4 Bd7 30. Rf1 Qc4 31. Re1 Qc5 32. Ne7+ Bxe7 33. fxe7 1-0

[Event "Leiden op-B 12th"]
[Site "Leiden"]
[Date "2018.07.19"]
[Round "6"]
[White "Both, Gert"]
[Black "Cchung, Chi Yun"]
[Result "1/2-1/2"]
[ECO "E90"]
[WhiteElo "1854"]
[BlackElo "1791"]
[PlyCount "66"]
[EventDate "2018.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 0-0 6. Be2 Nbd7 7. Nf3 e5 8. 0-0 h6 9. Be3 c6 10. h3 exd4 11. Nxd4 Re8 12. Qc2 Qe7 13. f3 Nh5 14. Rfd1 Be5 15. Qd2 Qh4 16. Qe1 Ng3 17. Bf1 Nf6 18. Nde2 Nfh5 19. Bf2 f5 20. Rd3 f4 21. Rad1 Be6 22. b3 Nxe2+ 23. Nxe2 Ng3 24. Qd2 h5 25. Bxg3 fxg3 26. f4 Bg7 27. Rxg3 Bf7 28. Qe3 Rad8 29. Rf3 c5 30. g3 Qe7 31. Nc3 Bd4 32. Rxd4 cxd4 33. Qxd4 b6 1/2-1/2

[Event "Leiden op-B 12th"]
[Site "Leiden"]
[Date "2018.07.17"]
[Round "5"]
[White "Cchung, Chi Yun"]
[Black "Hilarius, Sander"]
[Result "0-1"]
[ECO "C97"]
[WhiteElo "1791"]
[BlackElo "1888"]
[PlyCount "108"]
[EventDate "2018.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. d5 Nc4 13. b3 Nb6 14. a4 Bd7 15. a5 Nc8 16. Nbd2 g6 17. Nf1 Ne8 18. Bh6 Ng7 19. Ng3 Bd8 20. Nh2 Bh4 21. Nhf1 Ne7 22. Ne3 Bxg3 23. fxg3 f5 24. exf5 Nexf5 25. Nxf5 Bxf5 26. g4 Bxc2 27. Qxc2 Rf7 28. Rf1 Raf8 29. Rxf7 Rxf7 30. Bxg7 Kxg7 31. Qe2 Qb7 32. Qd3 Rf4 33. Rb1 Qf7 34. c4 b4 35. Rf1 Rxf1+ 36. Qxf1 Qc7 37. g5 Qd8 38. Qa1 Qxg5 39. Qa4 Qe3+ 40. Kh2 Qf4+ 41. Kg1 e4 42. Qa1+ Kh6 43. Qe1 Kg5 44. h4+ Qxh4 45. g3 Qg4 46. Qe3+ Kf5 47. Kg2 Qf3+ 48. Qxf3+ exf3+ 49. Kxf3 Ke5 50. Ke3 h5 51. Kf3 g5 52. Ke3 h4 53. gxh4 gxh4 54. Kf3 Kd4 0-1

[Event "Leiden op-B 12th"]
[Site "Leiden"]
[Date "2018.07.16"]
[Round "4"]
[White "Van der Knaap, Jan"]
[Black "Cchung, Chi Yun"]
[Result "1/2-1/2"]
[ECO "B24"]
[WhiteElo "1829"]
[BlackElo "1791"]
[PlyCount "36"]
[EventDate "2018.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. f4 Nge7 7. Nf3 d5 8. e5 0-0 9. 0-0 f6 10. exf6 Bxf6 11. Re1 Nf5 12. g4 Nfd4 13. Ne2 e5 14. Nexd4 exd4 15. h3 Qd6 16. Bd2 b5 17. a4 b4 18. Qe2 Bd7 1/2-1/2

[Event "Leiden op-B 12th"]
[Site "Leiden"]
[Date "2018.07.15"]
[Round "3"]
[White "Van den Berg, Dick"]
[Black "Cchung, Chi Yun"]
[Result "0-1"]
[ECO "E86"]
[WhiteElo "1846"]
[BlackElo "1791"]
[PlyCount "130"]
[EventDate "2018.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. Nge2 c6 8. Qd2 a6 9. Rd1 Qa5 10. c5 exd4 11. Nxd4 dxc5 12. Nb3 Qc7 13. Bxc5 Re8 14. Bd6 Qd8 15. Be2 b6 16. 0-0 Be6 17. Qc2 Qc8 18. Nd4 Bd7 19. b4 Qb7 20. Qb3 a5 21. Bc4 Bc8 22. b5 c5 23. Nc6 Nxc6 24. bxc6 Qa7 25. Nb5 a4 26. Qc2 Qa5 27. Bg3 Rf8 28. Be1 Qa6 29. Nc7 Qa7 30. Nxa8 Qxa8 31. Bb5 Nh5 32. Bc3 Bh6 33. Be5 Be3+ 34. Kh1 Re8 35. Qc3 Bg5 36. f4 Bh4 37. g4 Bxg4 38. Rd2 f6 39. Bd6 Rxe4 40. Bc4+ Kg7 41. Bd5 Re1 42. Rxe1 Bxe1 43. c7 Qxd5+ 44. Rxd5 Bxc3 45. f5 Bf3+ 46. Kg1 Bxd5 47. c8Q Bd4+ 48. Kf1 gxf5 49. Qf8+ Kg6 50. Qe8+ Kg5 51. Qb8 c4 52. Ke2 f4 53. h4+ Kg4 54. Qc8+ f5 55. Qd8 f3+ 56. Kf1 Bf6 57. Be7 Ng3+ 58. Ke1 Bc3+ 59. Kd1 f2 60. Qxd5 f1Q+ 61. Kc2 Qa1 62. Qxc4+ Kh3 63. Qxc3 Qxc3+ 64. Kxc3 f4 65. Kd3 f3 0-1

[Event "Leiden op-B 12th"]
[Site "Leiden"]
[Date "2018.07.14"]
[Round "2"]
[White "Cchung, Chi Yun"]
[Black "Geboers, Jimmy"]
[Result "1-0"]
[ECO "C11"]
[WhiteElo "1791"]
[BlackElo "1863"]
[PlyCount "65"]
[EventDate "2018.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 Qb6 8. Na4 Qa5+ 9. c3 cxd4 10. b4 Nxb4 11. cxb4 Bxb4+ 12. Bd2 Bxd2+ 13. Nxd2 b6 14. Bd3 Nc5 15. Nxc5 bxc5 16. 0-0 c4 17. Bxc4 dxc4 18. Nxc4 Qd5 19. Nd6+ Ke7 20. Qh5 Rf8 21. Qg5+ Kd7 22. Rac1 Ba6 23. Rc7+ Kxc7 24. Qe7+ Kb6 25. Rb1+ Kc6 26. Rc1+ Qc5 27. Rxc5+ Kxc5 28. Ne8+ Kc6 29. Qd6+ Kb5 30. Nc7+ Kc4 31. Qxa6+ Kc3 32. Nxa8 d3 33. Qa3+ 1-0

[Event "Utrecht OKU op-B 45th"]
[Site "Utrecht"]
[Date "2018.06.03"]
[Round "6"]
[White "Cchung, Chi Yun"]
[Black "Cheng, Di"]
[Result "1-0"]
[ECO "C92"]
[WhiteElo "1753"]
[BlackElo "1731"]
[PlyCount "117"]
[EventDate "2018.06.01"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. c3 d6 9. h3 Re8 10. d4 exd4 11. cxd4 h6 12. Nbd2 Bf8 13. Nf1 Ne7 14. Ng3 Ng6 15. Bc2 c5 16. b3 cxd4 17. Qxd4 Ne5 18. Nh4 Nc6 19. Qd2 d5 20. exd5 Rxe1+ 21. Qxe1 Qxd5 22. Bb2 Nb4 23. Bb1 Nd3 24. Bxd3 Qxd3 25. Bxf6 gxf6 26. Rd1 Qc2 27. Rd8 Bb7 28. Qe7 Rxd8 29. Qxd8 Qc1+ 30. Kh2 Qf4 31. Qb6 Bc8 32. Nhf5 Qe5 33. Nxh6+ Kg7 34. Ng4 Qf4 35. Qxf6+ Qxf6 36. Nh5+ Kg6 37. Nhxf6 Bf5 38. Nd5 Bd6+ 39. f4 b4 40. Ne5+ Kg7 41. Nc4 Bf8 42. Nc7 Bb1 43. Nxa6 Bxa2 44. Nd2 Bd6 45. g3 Kg6 46. Kg2 Kf5 47. Kf3 Ke6 48. Ke4 Be7 49. Kd4 Bf6+ 50. Kc4 Bc3 51. Nxb4 Bxd2 52. Nxa2 Kf5 53. Nc3 Be1 54. Ne2 Ke4 55. h4 Ke3 56. h5 Ba5 57. b4 Bd8 58. Nc3 Kf3 59. Nd5 1-0

[Event "Utrecht OKU op-B 45th"]
[Site "Utrecht"]
[Date "2018.06.03"]
[Round "5"]
[White "Cchung, Chi Yun"]
[Black "Houpst, Christ HJ"]
[Result "1-0"]
[ECO "B19"]
[WhiteElo "1753"]
[BlackElo "1711"]
[PlyCount "57"]
[EventDate "2018.06.01"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bd2 Ngf6 12. 0-0-0 a5 13. Kb1 Be7 14. Ne4 Nxe4 15. Qxe4 Nf6 16. Qe2 Qd5 17. Ne5 0-0 18. f3 Qxd4 19. Bxh6 Qxd1+ 20. Rxd1 gxh6 21. g4 Rad8 22. Rf1 Nd5 23. f4 Bf6 24. a3 Nc7 25. g5 hxg5 26. fxg5 Bh8 27. h6 Rd5 28. h7+ Kg7 29. Qh5 1-0

[Event "Utrecht OKU op-B 45th"]
[Site "Utrecht"]
[Date "2018.06.02"]
[Round "3"]
[White "Rosegg, Jaron"]
[Black "Cchung, Chi Yun"]
[Result "1/2-1/2"]
[ECO "B41"]
[WhiteElo "1780"]
[BlackElo "1753"]
[PlyCount "62"]
[EventDate "2018.06.01"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Qc7 7. Be3 b6 8. Bd3 Bb7 9. 0-0 Bb4 10. f3 Bxc3 11. bxc3 0-0 12. Qb3 d5 13. cxd5 exd5 14. Rab1 Nbd7 15. Nf5 b5 16. Ne7+ Kh8 17. Nxd5 Nxd5 18. exd5 Nc5 19. Qc2 Nxd3 20. Qxd3 Rfd8 21. Bd4 Bxd5 22. Qd2 Bc4 23. Rfe1 Re8 24. Qg5 f6 25. Qd2 Qf7 26. a3 Rxe1+ 27. Rxe1 Re8 28. Kf2 Rxe1 29. Qxe1 Qg6 30. Bc5 Qc2+ 31. Kg3 Qg6+ 1/2-1/2

[Event "NED-ch U16"]
[Site "Assen"]
[Date "2018.05.05"]
[Round "7"]
[White "Cchung, Chi Yun"]
[Black "Van Randtwijk, Mick"]
[Result "0-1"]
[ECO "B94"]
[WhiteElo "1783"]
[BlackElo "1992"]
[PlyCount "56"]
[EventDate "2018.04.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. f4 Qc7 8. Qf3 b5 9. 0-0-0 Bb7 10. g4 Rc8 11. Bd3 h6 12. Bxf6 Nxf6 13. h4 h5 14. g5 Ng4 15. g6 fxg6 16. Qe2 e5 17. fxe5 dxe5 18. Nf3 Bc5 19. Rdf1 0-0 20. Ng5 Qb6 21. Nd5 Bxd5 22. exd5 Nf2 23. Rh2 Nxd3+ 24. Qxd3 Rxf1+ 25. Qxf1 Rf8 26. Qd3 Be3+ 27. Kb1 Bxg5 28. hxg5 Qg1+ 0-1

[Event "NED-ch U16"]
[Site "Assen"]
[Date "2018.05.04"]
[Round "6"]
[White "Cchung, Chi Yun"]
[Black "Bruggink, Tycho"]
[Result "1/2-1/2"]
[ECO "B94"]
[WhiteElo "1783"]
[BlackElo "1899"]
[PlyCount "49"]
[EventDate "2018.04.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Qc7 7. Bxf6 gxf6 8. Nd5 Qd8 9. Qf3 Nc6 10. 0-0-0 Bd7 11. Bc4 Ne5 12. Qb3 Nxc4 13. Qxc4 Rc8 14. Qb3 b5 15. Rd3 e6 16. Nc3 Qb6 17. a3 Rc4 18. Rhd1 Rg8 19. g3 Rg5 20. f4 Rgc5 21. Nf3 Rc8 22. Rd4 Qa5 23. R4d3 b4 24. Nd2 R4c7 25. Qxb4 1/2-1/2

[Event "NED-ch U16"]
[Site "Assen"]
[Date "2018.05.03"]
[Round "5"]
[White "Bruil, Rembrandt"]
[Black "Cchung, Chi Yun"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1998"]
[BlackElo "1783"]
[PlyCount "71"]
[EventDate "2018.04.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. e3 c5 4. c3 Nc6 5. Nd2 Qb6 6. Qc2 g6 7. Bd3 c4 8. Be2 Bf5 9. Qc1 Na5 10. Ngf3 Bg7 11. 0-0 0-0 12. Ne5 Qe6 13. b3 b5 14. a4 a6 15. Qa3 Ne4 16. Nxe4 Bxe4 17. axb5 Nxb3 18. Ra2 g5 19. Bxg5 f6 20. f3 fxg5 21. fxe4 Rxf1+ 22. Bxf1 Bxe5 23. exd5 Qf5 24. Qxe7 Bxh2+ 25. Kxh2 Qxf1 26. Qxg5+ Kh8 27. Rxa6 Rf8 28. Ra7 Qf6 29. Qxf6+ Rxf6 30. Ra6 Rf5 31. e4 Rf4 32. d6 Nc1 33. d7 Ne2 34. d8Q+ Kg7 35. Qg5+ Kf7 36. Qh5+ 1-0

[Event "NED-ch U16"]
[Site "Assen"]
[Date "2018.05.02"]
[Round "4"]
[White "Gevorkjan, Lewon"]
[Black "Cchung, Chi Yun"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "1821"]
[BlackElo "1783"]
[PlyCount "62"]
[EventDate "2018.04.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. Nf3 Nf6 2. e3 g6 3. b3 Bg7 4. Bb2 0-0 5. Be2 b6 6. 0-0 Bb7 7. c4 d6 8. Nc3 Ne4 9. Qc2 Nxc3 10. Bxc3 e5 11. d3 Nd7 12. Nd2 f5 13. Bf3 Bxf3 14. Nxf3 g5 15. Nd2 g4 16. Rad1 Qh4 17. Kh1 Rf6 18. g3 Qh3 19. Rg1 Rh6 20. Rg2 Rf8 21. f3 Nc5 22. b4 Ne6 23. Rf1 f4 24. exf4 exf4 25. Bxg7 Kxg7 26. Qb2+ Kg8 27. Rff2 fxg3 28. Rf1 Qxh2+ 29. Rxh2 Rxh2+ 30. Kg1 Nf4 31. Rf2 Rxf2 0-1

[Event "NED-ch U16"]
[Site "Assen"]
[Date "2018.05.01"]
[Round "3"]
[White "Cchung, Chi Yun"]
[Black "Ypma, Jord"]
[Result "1-0"]
[ECO "B39"]
[WhiteElo "1783"]
[BlackElo "1737"]
[PlyCount "65"]
[EventDate "2018.04.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4 8. Qxg4 Nxd4 9. Qd1 Ne6 10. Rc1 d6 11. Bd3 b6 12. 0-0 Bb7 13. f4 0-0 14. f5 Nc5 15. Bb1 Nd7 16. b3 Ne5 17. Qe1 Rc8 18. Qh4 Qd7 19. Nd5 Bxd5 20. exd5 e6 21. f6 Bh8 22. Bh6 Rfe8 23. Rc3 exd5 24. Rg3 dxc4 25. Bf5 Qc7 26. Rh3 Nd3 27. b4 Re2 28. Bg7 h5 29. Bxh8 Qc6 30. Qg5 Ne1 31. Rg3 h4 32. Bxg6 Kf8 33. Bf5 1-0

[Event "NED-ch U16"]
[Site "Assen"]
[Date "2018.04.30"]
[Round "2"]
[White "Honkoop, Gilian"]
[Black "Cchung, Chi Yun"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1889"]
[BlackElo "1783"]
[PlyCount "74"]
[EventDate "2018.04.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. Nc3 Bg7 4. e4 d5 5. Nb5 Na6 6. e5 Nd7 7. Nf3 c5 8. c3 Nf8 9. Qd2 Ne6 10. Be3 b6 11. Rd1 Bb7 12. Be2 Nac7 13. 0-0 0-0 14. Na3 Qd7 15. Nh4 f5 16. exf6 Bxf6 17. Nf3 Qd6 18. Nc2 Bg7 19. g3 Ne8 20. Bh6 Nf6 21. Bxg7 Nxg7 22. Ne5 Ne4 23. Qc1 Nf5 24. f3 Nf6 25. Ne3 Nd7 26. Nxf5 Rxf5 27. Nxd7 Qxd7 28. f4 Rf6 29. Qd2 Rd8 30. Bf3 c4 31. Rde1 Kf7 32. Re5 Rd6 33. f5 Kg7 34. Bg4 Rf6 35. Qe2 Re8 36. fxg6 Rxf1+ 37. Qxf1 e6 1-0

[Event "NED-ch U16"]
[Site "Assen"]
[Date "2018.04.29"]
[Round "1"]
[White "Cchung, Chi Yun"]
[Black "Kouwenhoven, Derk"]
[Result "0-1"]
[ECO "C95"]
[WhiteElo "1783"]
[BlackElo "2091"]
[PlyCount "126"]
[EventDate "2018.04.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. c3 d6 9. h3 Nb8 10. d4 Nbd7 11. Nbd2 c5 12. Nf1 Bb7 13. Ng3 Re8 14. Bc2 Bf8 15. b3 g6 16. Bb2 Qc7 17. Bd3 c4 18. Bc2 d5 19. exd5 Nxd5 20. bxc4 bxc4 21. Ba4 N5b6 22. Nxe5 Nxa4 23. Qxa4 Nxe5 24. Rxe5 Rxe5 25. dxe5 Bg7 26. Nf1 Bxg2 27. Kxg2 Qb7+ 28. Kg1 Qxb2 29. Rd1 Qxc3 30. Qc6 Rf8 31. Ne3 Bxe5 32. Qxa6 Bb8 33. Qxc4 Qe5 34. Ng4 Qg7 35. Qd4 Qxd4 36. Rxd4 f5 37. Ne3 Re8 38. a4 Ba7 39. Rd3 Kf8 40. Kg2 Re4 41. Rd8+ Ke7 42. Rh8 Bxe3 43. Rxh7+ Kf6 44. fxe3 Rxe3 45. a5 Ra3 46. Ra7 g5 47. a6 Ke5 48. Ra8 Kf4 49. a7 Ra2+ 50. Kf1 Kf3 51. Ke1 f4 52. Rg8 Ra1+ 53. Kd2 Rxa7 54. Rxg5 Rh7 55. Kd1 Rxh3 56. Rg8 Kf2 57. Kd2 f3 58. Rg7 Rh8 59. Kd3 Rd8+ 60. Ke4 Ke2 61. Rg3 Re8+ 62. Kf4 f2 63. Rg2 Ke1 0-1

