[Event "London Classic op 6th"]
[Site "London"]
[Date "2014.12.14"]
[Round "8"]
[White "Kalaiyalahan, Akshaya"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "D12"]
[WhiteElo "2080"]
[BlackElo "1973"]
[PlyCount "149"]
[EventDate "2014.12.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 163 Extra"]
[Source "ChessBase"]
[SourceDate "2014.12.23"]
[SourceVersion "1"]
[SourceVersionDate "2014.12.23"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. e3 Bf5 5. Nc3 e6 6. Qb3 Qb6 7. Qxb6 axb6 8. Nh4 Bc2 9. cxd5 exd5 10. Bd2 h6 11. Rc1 Bh7 12. Be2 Be7 13. Nf3 Nbd7 14. 0-0 Ne4 15. a3 0-0 16. Nxe4 Bxe4 17. Bc3 b5 18. Nd2 Bg6 19. f4 Rfe8 20. g4 Bd6 21. Rf3 Nf6 22. f5 Bh7 23. h3 Re7 24. Re1 Rae8 25. Bd1 Kh8 26. Kg2 Bg8 27. Bc2 Nd7 28. h4 Nf6 29. g5 Nh5 30. Nf1 f6 31. g6 c5 32. Rd1 cxd4 33. Bxd4 Rc7 34. Bb1 Rec8 35. Kh3 Rc1 36. Rxc1 Rxc1 37. Ba2 Rd1 38. Bb3 Rd3 39. Bc2 Rxd4 40. exd4 Nf4+ 41. Rxf4 Bxf4 42. Nh2 Bc1 43. b3 Bxa3 44. Nf3 Bd6 45. h5 b4 46. Kg2 Bf4 47. Kf2 Bc7 48. Ke3 Bg3 49. Kd3 Bd6 50. Nd2 Bf4 51. Bd1 Bd6 52. Bf3 Bf4 53. Nf1 Bd6 54. Ne3 b6 55. Nxd5 Bxd5 56. Bxd5 Bg3 57. Be6 Bf2 58. d5 Bc5 59. Kc4 Bd6 60. Kb5 Bc5 61. Kc6 Bf8 62. d6 b5 63. d7 Be7 64. Kxb5 Bd8 65. Kc6 Ba5 66. Kb7 Bd8 67. Kc8 Be7 68. Bc4 Bf8 69. Bd3 Be7 70. d8Q+ Bxd8 71. Kxd8 Kg8 72. Kd7 Kf8 73. Kd6 Ke8 74. Bb5+ Kd8 75. Ke6 1-0

[Event "London Classic op 6th"]
[Site "London"]
[Date "2014.12.13"]
[Round "7"]
[White "Yu, Derek"]
[Black "Klingher, Dominic"]
[Result "1/2-1/2"]
[ECO "C00"]
[WhiteElo "1973"]
[BlackElo "1799"]
[PlyCount "75"]
[EventDate "2014.12.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 163 Extra"]
[Source "ChessBase"]
[SourceDate "2014.12.23"]
[SourceVersion "1"]
[SourceVersionDate "2014.12.23"]
[SourceQuality "1"]

1. e4 e6 2. c4 Nc6 3. Nc3 Bb4 4. Nge2 Nf6 5. a3 Bxc3 6. Nxc3 e5 7. d3 d6 8. f4 Nd4 9. f5 0-0 10. Bg5 c6 11. h4 h6 12. Be3 Qb6 13. b4 d5 14. c5 Qc7 15. g4 Nxg4 16. Qxg4 Nc2+ 17. Kd2 Nxe3 18. Kxe3 d4+ 19. Kd2 dxc3+ 20. Kxc3 a5 21. Be2 f6 22. Bd1 Qd7 23. Bb3+ Kh8 24. Rag1 Re8 25. Rg2 Re7 26. Rhg1 axb4+ 27. axb4 Qd4+ 28. Kc2 Qxb4 29. Qh5 Ra3 30. Bc4 Qc3+ 31. Kd1 Ra1+ 32. Ke2 Rxg1 33. Rxg1 Qc2+ 34. Ke3 Bd7 35. Ra1 Be8 36. Ra8 Qc1+ 37. Ke2 Qc2+ 38. Ke3 1/2-1/2

[Event "London Classic op 6th"]
[Site "London"]
[Date "2014.12.12"]
[Round "5"]
[White "Mihajlov, Svetoslav"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "C26"]
[WhiteElo "2181"]
[BlackElo "1973"]
[PlyCount "65"]
[EventDate "2014.12.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 163 Extra"]
[Source "ChessBase"]
[SourceDate "2014.12.23"]
[SourceVersion "1"]
[SourceVersionDate "2014.12.23"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 0-0 5. h3 c6 6. Nge2 Re8 7. 0-0 b5 8. d3 d6 9. Kh2 Qa5 10. f4 b4 11. Nb1 Qc7 12. a3 bxa3 13. Nxa3 Nbd7 14. c3 Ba6 15. b4 Bb6 16. c4 Bb7 17. fxe5 Rxe5 18. d4 Ree8 19. c5 dxc5 20. dxc5 Qe5 21. Bf4 Qb2 22. cxb6 axb6 23. Nc4 Qxa1 24. Qxa1 Rxa1 25. Rxa1 Nxe4 26. Ra7 Bc8 27. Ra8 b5 28. Bxe4 bxc4 29. Nc3 c5 30. b5 Nb6 31. Rb8 Nd7 32. Bc6 f6 33. Rxc8 1-0

[Event "London Classic op 6th"]
[Site "London"]
[Date "2014.12.11"]
[Round "4"]
[White "Yu, Derek"]
[Black "Bates, Caspar J"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "1973"]
[BlackElo "2185"]
[PlyCount "95"]
[EventDate "2014.12.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 163 Extra"]
[Source "ChessBase"]
[SourceDate "2014.12.23"]
[SourceVersion "1"]
[SourceVersionDate "2014.12.23"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 Nf6 5. Bg5 Nbd7 6. Nf3 c6 7. Bd3 h6 8. Bxf6 Nxf6 9. Ne5 Be6 10. Ne2 Qa5+ 11. c3 Rd8 12. 0-0 Bc8 13. Qc2 Ng4 14. f4 Ne3 15. Qb3 Qd5 16. Rf3 Qxb3 17. axb3 Ng4 18. Rxa7 Nxe5 19. fxe5 e6 20. b4 Be7 21. Be4 Rd7 22. Nf4 0-0 23. Rf1 Bd8 24. Nxe6 fxe6 25. Bh7+ Kxh7 26. Rxf8 g6 27. Ra8 Kg7 28. Rf1 Rc7 29. Rfa1 Kf8 30. Rb8 Ke8 31. Kf2 Be7 32. Raa8 Kd7 33. Ke3 Bg5+ 34. Kd3 Be7 35. h3 Bh4 36. Kc4 Be7 37. g4 Kd8 38. Kb3 Kd7 39. Ka4 b5+ 40. Ka3 Bf8 41. b3 Be7 42. Kb2 Bf8 43. Kc2 Be7 44. Kd3 Bg5 45. c4 Be7 46. cxb5 cxb5 47. Rxb5 Bb7 48. Ra2 1/2-1/2

[Event "London Classic op 6th"]
[Site "London"]
[Date "2014.12.10"]
[Round "3"]
[White "Miu, Marinel"]
[Black "Yu, Derek"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1743"]
[BlackElo "1973"]
[PlyCount "114"]
[EventDate "2014.12.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 163 Extra"]
[Source "ChessBase"]
[SourceDate "2014.12.23"]
[SourceVersion "1"]
[SourceVersionDate "2014.12.23"]
[SourceQuality "1"]

1. d4 d5 2. Nh3 Nf6 3. Nf4 g6 4. g3 Bg7 5. Bg2 c6 6. Nc3 0-0 7. 0-0 Re8 8. Nd3 Nbd7 9. Bg5 h6 10. Bd2 Kh7 11. a4 a5 12. e3 e5 13. Ne2 e4 14. Nc5 Nxc5 15. dxc5 Nd7 16. Bc3 Bxc3 17. Nxc3 Nxc5 18. f3 f5 19. fxe4 Nxe4 20. Bxe4 dxe4 21. Qe1 Qb6 22. b3 Be6 23. Qf2 Qc5 24. Na2 Rad8 25. Rad1 b5 26. axb5 cxb5 27. Rd2 a4 28. Rb1 Qa3 29. Nc1 Qb4 30. Rd4 Rxd4 31. exd4 Rc8 32. Na2 Qa3 33. Nc1 axb3 34. Nxb3 Bxb3 35. cxb3 Rc1+ 36. Rxc1 Qxc1+ 37. Kg2 Qc3 38. d5 e3 39. Qf3 Qd2+ 40. Kf1 Kg7 41. d6 e2+ 42. Qxe2 Qxe2+ 43. Kxe2 Kf6 44. Kd3 Ke6 45. d7 Kxd7 46. Kc3 Kc6 47. Kd4 Kd6 48. h4 g5 49. b4 gxh4 50. gxh4 h5 51. Kd3 Ke5 52. Ke3 f4+ 53. Ke2 Ke4 54. Kf2 f3 55. Kf1 Kf4 56. Kg1 Kg3 57. Kh1 Kxh4 0-1

[Event "London Classic op 6th"]
[Site "London"]
[Date "2014.12.08"]
[Round "1"]
[White "Yu, Derek"]
[Black "Adair, James R"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "1973"]
[BlackElo "2428"]
[PlyCount "71"]
[EventDate "2014.12.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 163 Extra"]
[Source "ChessBase"]
[SourceDate "2014.12.23"]
[SourceVersion "1"]
[SourceVersionDate "2014.12.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Qxd4 a6 6. Bxd7+ Bxd7 7. 0-0 Rc8 8. c4 e5 9. Qd3 Qc7 10. b3 b5 11. Nbd2 Nf6 12. Bb2 Be7 13. Rac1 Qb6 14. cxb5 axb5 15. Rxc8+ Bxc8 16. a4 bxa4 17. Nc4 Ba6 18. Ra1 Bxc4 19. Qxc4 0-0 20. Rxa4 Ng4 21. Qc2 Rb8 22. b4 Bd8 23. h3 Nxf2 24. Qxf2 Qc6 25. Nxe5 dxe5 26. Bxe5 Bb6 27. Bxb8 Bxf2+ 28. Kxf2 Qxa4 29. Bd6 Qc6 30. e5 f6 31. Kg1 fxe5 32. Bxe5 Qb6+ 33. Kh1 Qxb4 34. Bc7 Kf7 35. Kh2 Ke6 36. Bg3 0-1

[Event "Doeberl Cup 52nd"]
[Site "Canberra"]
[Date "2014.04.17"]
[Round "1"]
[White "Yu, Derek"]
[Black "Van Ruitenburg, Joost"]
[Result "0-1"]
[ECO "C63"]
[WhiteElo "1991"]
[BlackElo "2326"]
[PlyCount "84"]
[EventDate "2014.04.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "CBM 159 Extra"]
[Source "ChessBase"]
[SourceDate "2014.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2014.04.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 fxe4 5. Nxe4 Nf6 6. Nxf6+ Qxf6 7. Qe2 Be7 8. Bxc6 bxc6 9. Nxe5 0-0 10. 0-0 Qe6 11. Re1 Bc5 12. Nf3 Qg6 13. d4 Bb6 14. b3 d6 15. Qc4+ Kh8 16. Re3 Bg4 17. Qxc6 Bxf3 18. Rxf3 Bxd4 19. Rb1 Bc5 20. Be3 Qxc2 21. Rc1 Qb2 22. Rf1 Qxa2 23. Bxc5 Qc2 24. Rxf8+ Rxf8 25. b4 dxc5 26. bxc5 a5 27. Qxc7 a4 28. Qa7 h6 29. h3 Kh7 30. Qa6 Rf6 31. Qa5 Rf5 32. Qb4 Rxc5 33. Ra1 Rc4 34. Qa5 Rd4 35. Qe5 Rd1+ 36. Kh2 Rd2 37. Rc1 Qg6 38. Qa5 Rxf2 39. Qa8 Rd2 40. Kh1 a3 41. Rc8 Rd1+ 42. Kh2 Qd6+ 0-1

[Event "Begonia op 48th"]
[Site "Ballarat"]
[Date "2014.03.08"]
[Round "5"]
[White "Sandler, Leonid"]
[Black "Yu, Derek"]
[Result "1/2-1/2"]
[ECO "C90"]
[WhiteElo "2272"]
[BlackElo "1951"]
[PlyCount "65"]
[EventDate "2014.03.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Be7 7. 0-0 d6 8. c3 0-0 9. Re1 Na5 10. Bc2 c5 11. Nbd2 Re8 12. Nf1 Bf8 13. Ng3 g6 14. h3 Bg7 15. d4 cxd4 16. cxd4 Qc7 17. b3 Nc6 18. Be3 Nb4 19. Re2 Bb7 20. d5 Rac8 21. Ne1 Nd7 22. a3 Nxc2 23. Rxc2 Qb8 24. Rac1 Rxc2 25. Rxc2 Rc8 26. Nf1 f5 27. f3 Bf6 28. Nd3 a5 29. Nd2 Bd8 30. Qc1 Bb6 31. Rxc8+ Qxc8 32. Qxc8+ Bxc8 33. Bxb6 1/2-1/2

[Event "Begonia op 48th"]
[Site "Ballarat"]
[Date "2014.03.08"]
[Round "6"]
[White "Stojic, Dusan"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "C85"]
[WhiteElo "2271"]
[BlackElo "1951"]
[PlyCount "61"]
[EventDate "2014.03.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "AUS"]
[SourceTitle "CBM 159 Extra"]
[Source "ChessBase"]
[SourceDate "2014.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2014.04.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Bxc6 dxc6 7. d3 Bg4 8. Nbd2 Nd7 9. Nc4 c5 10. h3 Bxf3 11. Qxf3 Bf6 12. Ne3 c6 13. Qg3 Nf8 14. Ng4 Qd6 15. f4 exf4 16. Nxf6+ Qxf6 17. Bxf4 Qg6 18. Qf2 Nd7 19. d4 0-0 20. dxc5 Rfe8 21. Rad1 Nf6 22. e5 Nd5 23. Bh2 Rad8 24. c4 Nb4 25. Rd6 Rxd6 26. cxd6 Qe6 27. a3 Nd3 28. Qd4 Qg6 29. Rd1 Nxe5 30. Bxe5 f6 31. d7 1-0

[Event "Doeberl Cup Premier 50th"]
[Site "Canberra"]
[Date "2012.04.08"]
[Round "8"]
[White "Rout, Ian Clive"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "D18"]
[WhiteElo "1964"]
[BlackElo "2001"]
[PlyCount "67"]
[EventDate "2012.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 Nbd7 7. Bxc4 e6 8. 0-0 Be7 9. Qe2 Ne4 10. Rd1 0-0 11. Nxe4 Bxe4 12. Bd2 Qb6 13. Bc3 Rfd8 14. Nd2 Bc2 15. Rdc1 Bg6 16. Nf1 Nf6 17. Ng3 Nd5 18. a5 Nxc3 19. bxc3 Qc7 20. Nh5 Bd6 21. g3 e5 22. Rf1 Re8 23. Qg4 Rad8 24. f4 exd4 25. exd4 c5 26. Nxg7 Kxg7 27. f5 Rd7 28. fxg6 hxg6 29. Qf3 Ree7 30. Qf6+ Kh7 31. Rf3 Qc6 32. d5 Qc7 33. g4 Bf4 34. Rh3+ 1-0

[Event "Doeberl Cup Premier 50th"]
[Site "Canberra"]
[Date "2012.04.08"]
[Round "9"]
[White "Setiabudi, Megan"]
[Black "Yu, Derek"]
[Result "1/2-1/2"]
[ECO "C68"]
[WhiteElo "1776"]
[BlackElo "2001"]
[PlyCount "90"]
[EventDate "2012.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nc3 Bd6 6. d4 exd4 7. Nxd4 Ne7 8. Be3 0-0 9. Qd2 f6 10. f3 c5 11. Nde2 Be6 12. 0-0-0 Nc6 13. Nf4 Bf7 14. Qf2 b6 15. Nfd5 Ne5 16. Bf4 c6 17. Ne3 Qc7 18. Bg3 g6 19. Bh4 Be6 20. Ne2 Nc4 21. Nxc4 Bxc4 22. Bg3 Rad8 23. Bxd6 Rxd6 24. Qg3 Rfd8 25. Rxd6 Rxd6 26. Nc3 Qd8 27. a3 b5 28. Qf2 Rd4 29. Rd1 Qd6 30. g3 a5 31. Qe1 b4 32. Ne2 Bxe2 33. Qxe2 bxa3 34. bxa3 c4 35. Rxd4 Qxd4 36. Qd1 Qa1+ 37. Kd2 Qxa3 38. Ke2 Qe7 39. Qd4 Kg7 40. Qxc4 Qc7 41. Qc5 a4 42. f4 Qb7 43. Kf2 Qd7 44. Ke1 Kh6 45. Qf8+ Qg7 1/2-1/2

[Event "Doeberl Cup Premier 50th"]
[Site "Canberra"]
[Date "2012.04.08"]
[Round "7"]
[White "Yu, Derek"]
[Black "Nava Baro, Enrique"]
[Result "0-1"]
[ECO "C18"]
[WhiteElo "2001"]
[BlackElo "2173"]
[PlyCount "72"]
[EventDate "2012.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 0-0 8. Bg5 Qa5 9. Bd2 Qa4 10. Bd3 Nbc6 11. Nf3 c4 12. Be2 Qxc2 13. h4 Qf5 14. Qg3 f6 15. h5 fxe5 16. Bh6 Rf7 17. dxe5 Bd7 18. Rh4 Qc2 19. Rc1 Qb2 20. Rg4 Nf5 21. Qf4 Kh8 22. Rxg7 Rxg7 23. Bxg7+ Nxg7 24. Ng5 Nf5 25. Nf7+ Kg7 26. Qg5+ Kxf7 27. Qf6+ Kg8 28. Qg5+ Kh8 29. h6 Rf8 30. g4 Nxh6 31. Qxh6 Rf7 32. Qg5 d4 33. cxd4 Qxd4 34. f4 Qxf4 35. Qxf4 Rxf4 36. Rd1 Nxe5 0-1

[Event "Doeberl Cup Premier 50th"]
[Site "Canberra"]
[Date "2012.04.07"]
[Round "5"]
[White "Yu, Derek"]
[Black "Setiabudi, Allen"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2001"]
[BlackElo "1959"]
[PlyCount "67"]
[EventDate "2012.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 Be7 7. 0-0 0-0 8. c4 Qd8 9. dxc5 Bxc5 10. Nc3 b6 11. a3 Bb7 12. b4 Be7 13. Bf4 Nbd7 14. Bd3 a5 15. Rb1 axb4 16. axb4 Ra3 17. Nb5 Nc5 18. Bxh7+ Nxh7 19. Qxd8 Rxd8 20. Nxa3 Ne4 21. Nb5 f6 22. Bc7 Rd3 23. Bxb6 Rxf3 24. gxf3 Nd2 25. Rfd1 Nxf3+ 26. Kf1 Nxh2+ 27. Ke1 Nf3+ 28. Ke2 Ne5 29. Rb3 Nxc4 30. Bc5 Ba6 31. Nc7 Bxc5 32. bxc5 Na5+ 33. Nxa6 Nxb3 34. c6 1-0

[Event "Doeberl Cup Premier 50th"]
[Site "Canberra"]
[Date "2012.04.07"]
[Round "6"]
[White "Zelesco, Karl"]
[Black "Yu, Derek"]
[Result "1/2-1/2"]
[ECO "C96"]
[WhiteElo "2048"]
[BlackElo "2001"]
[PlyCount "113"]
[EventDate "2012.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[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 Nd7 12. Nbd2 exd4 13. cxd4 Nc6 14. d5 Nce5 15. Nxe5 Nxe5 16. f4 Ng6 17. Nf3 Bh4 18. Nxh4 Qxh4 19. f5 Ne5 20. a4 b4 21. b3 Re8 22. Be3 a5 23. Rf1 Ba6 24. Rf4 Qg3 25. Qd2 c4 26. f6 cxb3 27. Bxb3 g6 28. Rf2 h5 29. Rc1 Rac8 30. Rxc8 Rxc8 31. Bc5 Kh7 32. Bxd6 Qxb3 33. Bxe5 Qb1+ 34. Kh2 Qxe4 35. Qg5 Qxd5 36. Rd2 Qc5 37. Rc2 Qd5 38. Rd2 Qc5 39. Qf4 Re8 40. Bd4 Qf5 41. Qc7 Kg8 42. Bb2 Bd3 43. Qd6 Bc2 44. Rd5 Qe6 45. Qc5 Be4 46. Re5 Qd7 47. Rxe8+ Qxe8 48. Qxa5 Bxg2 49. Qxb4 Bc6 50. Qe7 Bxa4 51. Qxe8+ Bxe8 52. h4 Bd7 53. Kg3 Kf8 54. Kf4 Ke8 55. Kg5 Be6 56. Kh6 Kd7 57. Bc1 1/2-1/2

[Event "Doeberl Cup Premier 50th"]
[Site "Canberra"]
[Date "2012.04.06"]
[Round "4"]
[White "Markovitz, Neil"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "A09"]
[WhiteElo "2059"]
[BlackElo "2001"]
[PlyCount "73"]
[EventDate "2012.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 d4 3. d3 Nc6 4. g3 e5 5. Bg2 Nf6 6. 0-0 a5 7. Na3 Be7 8. e3 0-0 9. exd4 exd4 10. Nb5 Bf5 11. Bf4 Rc8 12. a3 h6 13. Re1 Bh7 14. Bh3 Nd7 15. Ne5 Ncxe5 16. Bxe5 Nxe5 17. Rxe5 Bf6 18. Rd5 Qe8 19. Bd7 Qd8 20. b4 Ra8 21. Bf5 Qe7 22. Rd7 Qe5 23. Bxh7+ Kxh7 24. Rxc7 axb4 25. axb4 Rxa1 26. Qxa1 Qe2 27. Qf1 Qd2 28. Rxb7 Qxb4 29. Qe2 Kg8 30. Qe4 Rd8 31. Nc7 Qa4 32. Rb5 Kf8 33. Qh7 Qd1+ 34. Kg2 g6 35. Ne6+ Ke8 36. Qg8+ Kd7 37. Qxf7+ 1-0

[Event "Doeberl Cup Premier 50th"]
[Site "Canberra"]
[Date "2012.04.06"]
[Round "3"]
[White "Yu, Derek"]
[Black "Mandla, Blair"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2001"]
[BlackElo "2149"]
[PlyCount "122"]
[EventDate "2012.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. f3 Bf5 5. Bb5+ Nbd7 6. c4 a6 7. Bxd7+ Qxd7 8. Ne2 e6 9. dxe6 Qxe6 10. b3 0-0-0 11. 0-0 Bc5 12. Kh1 Bxd4 13. Nxd4 Qd6 14. Nc3 Qxd4 15. Qxd4 Rxd4 16. Bg5 Nd7 17. Rfe1 Be6 18. Ne2 Rd3 19. Nf4 Rd6 20. Be7 Rc6 21. Nxe6 Rxe6 22. Rxe6 fxe6 23. Re1 e5 24. Bb4 Re8 25. Bc3 g6 26. Kg1 b6 27. b4 Re6 28. b5 axb5 29. cxb5 Kb7 30. a4 Nc5 31. a5 bxa5 32. Bxa5 e4 33. Rc1 Nb3 34. Rxc7+ Kb8 35. fxe4 h5 36. Rg7 Nxa5 37. Kf2 Nc4 38. Kf3 Nd6 39. e5 Rxe5 40. Rxg6 Nxb5 41. Kf4 Rc5 42. Rg5 Rc4+ 43. Kg3 h4+ 44. Kh3 Nd4 45. Rg4 Kc7 46. Kxh4 Kd6 47. Kh5 Ke7 48. h4 Kf7 49. Rf4+ Kg7 50. g4 Rc5+ 51. g5 Ne6 52. Re4 Kf7 53. Ra4 Kg8 54. Kh6 Rc6 55. g6 Rc8 56. Ra7 Nf8 57. Rg7+ Kh8 58. Re7 Nxg6 59. Kxg6 Rc6+ 60. Kf7 Kh7 61. Re5 Kh6 1/2-1/2

[Event "Doeberl Cup Premier 50th"]
[Site "Canberra"]
[Date "2012.04.05"]
[Round "2"]
[White "Smirnov, Anton"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "C68"]
[WhiteElo "2151"]
[BlackElo "2001"]
[PlyCount "99"]
[EventDate "2012.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Bg4 6. h3 h5 7. d3 Qf6 8. Be3 Bxf3 9. Qxf3 Qxf3 10. gxf3 Bd6 11. Nd2 Ne7 12. Rfb1 f6 13. Kf1 Kf7 14. Ke2 Ng6 15. b4 Nf8 16. Nc4 Ne6 17. a4 g5 18. Rb2 Rhb8 19. Rab1 b5 20. Na5 Nd8 21. axb5 cxb5 22. Ra2 Rc8 23. c4 bxc4 24. dxc4 c5 25. Rd2 Ke6 26. Rbd1 Bf8 27. bxc5 Bxc5 28. Rxd8 Rxd8 29. Rxd8 Rxd8 30. Bxc5 Rb8 31. Be3 Rb1 32. c5 Kd7 33. Kd3 Rh1 34. Kc4 Rxh3 35. c6+ Kc7 36. Kc5 Rxf3 37. Nc4 h4 38. Bd2 Rd3 39. Ba5+ Kb8 40. Kb6 Rd4 41. Ne3 Rd6 42. Kc5 Re6 43. Kd5 Re8 44. Nf5 h3 45. c7+ Ka8 46. Kc6 h2 47. Ng3 f5 48. exf5 Rh8 49. f6 Rf8 50. f7 1-0

[Event "Doeberl Cup 50th"]
[Site "Canberra"]
[Date "2012.04.05"]
[Round "1"]
[White "Yu, Derek"]
[Black "Cheng, Bobby Sky"]
[Result "0-1"]
[ECO "C18"]
[WhiteElo "2001"]
[BlackElo "2344"]
[PlyCount "62"]
[EventDate "2012.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qa5 7. Bd2 Qa4 8. Nf3 b6 9. Be2 Ba6 10. Be3 Nd7 11. 0-0 Ne7 12. Nh4 Rc8 13. Bxa6 Qxa6 14. f4 Qc4 15. Qd2 cxd4 16. Bxd4 Nc5 17. Rf3 Ne4 18. Qe1 Nc6 19. Rd1 Nxd4 20. Rxd4 Qc5 21. Kh1 Nxc3 22. Rdd3 Ne4 23. f5 Qxc2 24. fxe6 fxe6 25. Rd1 Rf8 26. Rxf8+ Kxf8 27. Qb4+ Kg8 28. Rf1 Qf2 29. Qb5 Qxh4 30. Qd7 Ng3+ 31. Kg1 Qd4+ 0-1

[Event "Begonia op 46th"]
[Site "Ballarat"]
[Date "2012.03.12"]
[Round "7"]
[White "West, Guy"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2317"]
[BlackElo "2001"]
[PlyCount "160"]
[EventDate "2012.03.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "AUS"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nf3 d6 5. Ng5 d5 6. exd5 Na5 7. Bb5+ c6 8. dxc6 bxc6 9. Ba4 Bg4 10. f3 Bh5 11. c3 Qb6 12. Qe2 0-0-0 13. Be3 Qa6 14. d4 Qxe2+ 15. Kxe2 Nd5 16. dxe5 Nxe3 17. Kxe3 Nc4+ 18. Ke2 Nxe5 19. Rd1 Be7 20. Ne4 Kc7 21. Rxd8 Rxd8 22. Bc2 f6 23. Nbd2 Bf7 24. Bb3 Bg6 25. Bc2 Bf7 26. b3 f5 27. Nf2 g6 28. Rd1 Bf6 29. Nb1 Re8 30. Kf1 Nd7 31. Re1 Rd8 32. Nd3 a5 33. Nb2 Nb6 34. Nd1 Nd5 35. g3 Rd6 36. f4 Rd8 37. Ke2 Rd7 38. Bd3 Nb6 39. Ne3 Rd8 40. Bc2 Rd7 41. Rd1 Re7 42. Rd3 Nd7 43. Rd1 Nc5 44. Kf3 Re8 45. Nf1 Bd5+ 46. Kf2 Be4 47. Bxe4 Nxe4+ 48. Kf3 Nxc3 49. Nxc3 Bxc3 50. Ne3 Rd8 51. Rxd8 Kxd8 52. Ke2 Kd7 53. h3 Ke6 54. g4 fxg4 55. hxg4 h5 56. f5+ gxf5 57. gxh5 Kf6 58. Kd3 Bb4 59. h6 f4 60. Nf5 Kg6 61. Ke4 f3 62. Nh4+ Kxh6 63. Nxf3 Kg7 64. Ne5 c5 65. Kd5 Kf6 66. Nd7+ Ke7 67. Nxc5 Kd8 68. Kc6 Kc8 69. a4 Be1 70. Nb7 Bb4 71. Kb6 Kb8 72. Nxa5 Bd2 73. Nc6+ Ka8 74. b4 Be3+ 75. Ka6 Bf2 76. b5 Bb6 77. Nb4 Bc5 78. Nd5 Bd6 79. Kb6 Bg3 80. Kc6 Ka7 1-0

[Event "Begonia op 46th"]
[Site "Ballarat"]
[Date "2012.03.10"]
[Round "1"]
[White "Xie, George Wendi"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "2456"]
[BlackElo "2001"]
[PlyCount "101"]
[EventDate "2012.03.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "AUS"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 dxc4 4. a4 e5 5. dxe5 Qxd1+ 6. Nxd1 Be6 7. e4 Nd7 8. f4 g6 9. Ne3 Bb4+ 10. Kf2 Nc5 11. Bxc4 Nxe4+ 12. Kf3 Nc5 13. Bxe6 Nxe6 14. Ne2 0-0-0 15. Nc2 Be7 16. Be3 f6 17. Rhd1 fxe5 18. fxe5 Rf8+ 19. Ke4 Nc5+ 20. Bxc5 Bxc5 21. Nf4 Re8 22. b4 Bf8 23. b5 Nf6+ 24. Kf3 Rxe5 25. bxc6 bxc6 26. Nd4 Bc5 27. Rac1 Rhe8 28. g3 g5 29. Nxc6 Re3+ 30. Kg2 gxf4 31. Rxc5 f3+ 32. Kh3 Ne4 33. Nxa7+ Kb7 34. Rd7+ Ka8 35. Nc6 Nf2+ 36. Kh4 R3e4+ 37. Kh5 Rxa4 38. Nd8 Rxd8 39. Rxd8+ Kb7 40. Rf5 Ng4 41. h3 Nf2 42. Rxf3 Nxh3 43. Rf6 Kc7 44. Rh8 Ra5+ 45. Kg4 Ng5 46. Rg8 h5+ 47. Kh4 Nf3+ 48. Rxf3 Kd6 49. Rg5 Ra1 50. Kxh5 Ke6 51. Kg6 1-0

[Event "Doeberl Cup Major 48th"]
[Site "Canberra"]
[Date "2010.04.05"]
[Round "7"]
[White "Xu, Jerry"]
[Black "Yu, Derek"]
[Result "0-1"]
[ECO "C96"]
[WhiteElo "1539"]
[BlackElo "1908"]
[PlyCount "102"]
[EventDate "2010.04.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "AUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[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 Na5 9. Bc2 c5 10. d4 Nd7 11. d5 0-0 12. h3 Rb8 13. b3 Nb6 14. Nbd2 f5 15. exf5 Nxd5 16. Ne4 Bb7 17. Nfg5 Rxf5 18. Ne6 Qc8 19. N4g5 Rf6 20. Bxh7+ Kh8 21. Qh5 Rh6 22. Nf7+ Kxh7 23. Nxh6 Qxe6 24. Nf5+ Kg8 25. Nxe7+ Qxe7 26. Bg5 Qe6 27. Rad1 Nxc3 28. Rd3 Ne4 29. Bc1 Rf8 30. Rde3 Nf6 31. Qg6 Qf7 32. Qg3 Nc6 33. Bb2 Nd4 34. Bxd4 cxd4 35. R3e2 Qd5 36. Rc2 Bc6 37. f3 Nh5 38. Qf2 Nf4 39. Qd2 d3 40. Rc3 Ne2+ 41. Rxe2 dxe2 42. Qxe2 Qd4+ 43. Re3 Rc8 44. Kh2 Bb7 45. Rd3 Qf4+ 46. g3 Qc1 47. Rd2 Bxf3 48. Qxf3 Qxd2+ 49. Qg2 Qd1 50. Qg1 Rc2+ 51. Kh1 Qf3+ 0-1

[Event "Doeberl Cup Major 48th"]
[Site "Canberra"]
[Date "2010.04.04"]
[Round "6"]
[White "Pan, Andrew"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "1741"]
[BlackElo "1908"]
[PlyCount "131"]
[EventDate "2010.04.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "AUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. e3 Nf6 4. Nc3 e6 5. Nf3 Nbd7 6. Bd3 Bd6 7. cxd5 exd5 8. 0-0 0-0 9. Qc2 Re8 10. b3 Nf8 11. Bb2 Ng6 12. Rac1 Qe7 13. h3 Ne4 14. Rfd1 f5 15. Ne2 f4 16. exf4 Nxf4 17. Nxf4 Bxf4 18. Ra1 Qf7 19. Ne5 Bxe5 20. dxe5 Qf4 21. Bxe4 dxe4 22. Qc3 Be6 23. Rd2 Qg5 24. Re1 Bd5 25. Re3 Re6 26. Rd1 Rae8 27. Qe1 Rg6 28. Rg3 Qh5 29. Rxg6 Qxg6 30. Qe3 Re6 31. Re1 a6 32. Bd4 Qf5 33. Bc3 Rg6 34. Kh2 h6 35. Bd4 Qf8 36. Bc5 Qd8 37. a3 Qa5 38. b4 Qb5 39. Qf4 e3 40. f3 e2 41. Qf8+ Kh7 42. Qf5 Qc4 43. Be3 Be6 44. Qb1 Qc3 45. Bf4 Qd4 46. Bg3 Bc4 47. h4 Bd3 48. Qc1 Re6 49. Qd2 Qc4 50. Rc1 Qd5 51. Rc5 Qd4 52. Rc3 e1Q 53. Bxe1 Rxe5 54. Rxd3 Qc4 55. Bg3 Re7 56. Rd4 Qf7 57. Qd3+ Kg8 58. Qc4 Qxc4 59. Rxc4 Re3 60. a4 Ra3 61. a5 Kf7 62. Bd6 Ke6 63. Bc5 g5 64. hxg5 hxg5 65. Re4+ Kd5 66. Rg4 1-0

[Event "Doeberl Cup Major 48th"]
[Site "Canberra"]
[Date "2010.04.04"]
[Round "5"]
[White "Yu, Derek"]
[Black "Christensen, Joshua"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1908"]
[BlackElo "1634"]
[PlyCount "69"]
[EventDate "2010.04.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "AUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 c6 5. Nf3 Nf6 6. Bd2 Bf5 7. Bc4 e6 8. Nd5 Qd8 9. Nxf6+ Qxf6 10. c3 Bd6 11. 0-0 Nd7 12. Re1 0-0 13. Bg5 Qg6 14. Qd2 h6 15. Bf4 Be7 16. Bg3 Rac8 17. Nh4 Bxh4 18. Bxh4 Nb6 19. Be2 Nd5 20. Bf3 Rc7 21. h3 Qh7 22. g4 Bg6 23. Bg3 Rd7 24. Re5 Nf6 25. h4 h5 26. g5 Ne4 27. Qf4 Nd6 28. Rae1 Nc4 29. R5e2 Bd3 30. Be4 Bxe4 31. Rxe4 Nxb2 32. Qd2 Nc4 33. Qe2 Nd6 34. Rxe6 Nb5 35. Re8 1-0

[Event "Doeberl Cup Major 48th"]
[Site "Canberra"]
[Date "2010.04.03"]
[Round "4"]
[White "Grcic, Milan"]
[Black "Yu, Derek"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1707"]
[BlackElo "1908"]
[PlyCount "145"]
[EventDate "2010.04.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "AUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. Bf4 c5 4. c3 Nc6 5. e3 e6 6. Nbd2 Be7 7. Ne5 0-0 8. Nxc6 bxc6 9. Nf3 Qb6 10. Qb3 Qxb3 11. axb3 cxd4 12. exd4 c5 13. Ba6 Ne4 14. 0-0 cxd4 15. Nxd4 Bd6 16. Bxd6 Nxd6 17. Nc6 Bd7 18. Ne5 Rfd8 19. Rfd1 Be8 20. Nd3 Rab8 21. Nc5 Bb5 22. Bxb5 Rxb5 23. b4 Nb7 24. Nb3 Ra8 25. Ra6 Nd8 26. Nc5 Rb6 27. Rda1 Rxa6 28. Rxa6 Kf8 29. b5 Rc8 30. Nd7+ Ke7 31. Rxa7 Kd6 32. Nb6 Rb8 33. Ra6 Kc7 34. Na4 Rxb5 35. b4 Nc6 36. Nc5 d4 37. Ra3 dxc3 38. Rxc3 Kd6 39. Ne4+ Kd5 40. f3 Nxb4 41. Rc7 Rb8 42. Rxf7 Nd3 43. Rd7+ Kc4 44. Rc7+ Kd4 45. h4 Rg8 46. Ng5 Ke5 47. Nxh7 Nf4 48. Ng5 Kf6 49. g3 Nd5 50. Rf7+ Ke5 51. f4+ Kd6 52. Ne4+ Kc6 53. Ng5 Kd6 54. Ra7 Nc7 55. Nf7+ Kc6 56. Ra1 Nd5 57. Ne5+ Kc5 58. Ra5+ Kd4 59. Ra4+ Ke3 60. Kg2 Nf6 61. Kh3 Nd5 62. Kg4 Nf6+ 63. Kg5 Ne4+ 64. Kg6 Nxg3 65. Kf7 Rh8 66. Ng6 Rh6 67. Ra3+ Kf2 68. Kxg7 Nf5+ 69. Kf7 Nxh4 70. Ne5 Kg2 71. Ra2+ Kg3 72. Ra4 Nf5 73. Ng6 1/2-1/2

[Event "Doeberl Cup Major 48th"]
[Site "Canberra"]
[Date "2010.04.03"]
[Round "3"]
[White "Yu, Derek"]
[Black "Skulte, Christopher"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1908"]
[BlackElo "1660"]
[PlyCount "119"]
[EventDate "2010.04.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "AUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 Nf6 4. e5 Nd5 5. d4 cxd4 6. cxd4 d6 7. Nc3 Nxc3 8. bxc3 dxe5 9. Nxe5 Be7 10. Bd3 Nd7 11. Bf4 0-0 12. 0-0 Nxe5 13. Bxe5 Bd7 14. Be4 Rc8 15. Qb3 Bc6 16. Bxc6 bxc6 17. Qb7 a5 18. Rab1 Bf6 19. Rfe1 c5 20. dxc5 Rxc5 21. Red1 Qc8 22. Bxf6 Qxb7 23. Rxb7 gxf6 24. Rd3 Rfc8 25. Rb3 Rd5 26. Rxd5 exd5 27. g3 a4 28. Rb4 Rxc3 29. Rxa4 Kg7 30. Ra8 d4 31. Kg2 Kg6 32. a4 f5 33. a5 f4 34. gxf4 d3 35. Kf3 d2+ 36. Ke2 Rd3 37. Kd1 Kf5 38. Rh8 Kg6 39. Rg8+ Kf5 40. Rg7 f6 41. Rxh7 Kxf4 42. Rh4+ Kg5 43. Ra4 Rd7 44. a6 Ra7 45. Kxd2 f5 46. Ke3 Kg6 47. Kd4 Rh7 48. Kc5 Rxh2 49. a7 Rxf2 50. a8Q f4 51. Qe8+ Kg5 52. Qe5+ Kg4 53. Ra8 Rc2+ 54. Kd6 Rd2+ 55. Ke6 Kf3 56. Ra3+ Kg2 57. Qxf4 Re2+ 58. Re3 Rf2 59. Rg3+ Kh1 60. Qh6+ 1-0

[Event "Doeberl Cup Major 48th"]
[Site "Canberra"]
[Date "2010.04.02"]
[Round "2"]
[White "Deen Cowell, Nicholas Andrew"]
[Black "Yu, Derek"]
[Result "1/2-1/2"]
[ECO "C90"]
[WhiteElo "1662"]
[BlackElo "1908"]
[PlyCount "103"]
[EventDate "2010.04.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "AUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[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 Na5 9. Bc2 c5 10. d4 Nd7 11. d5 0-0 12. Nbd2 Nb6 13. Nf1 f5 14. exf5 Bxf5 15. Bxf5 Rxf5 16. Ng3 Rf8 17. Ne4 h6 18. b3 Qd7 19. Bd2 Nb7 20. Be3 Qg4 21. Ng3 Rac8 22. h3 Qg6 23. Rc1 a5 24. c4 b4 25. Nd2 Ra8 26. Qg4 Qxg4 27. hxg4 Rf7 28. Nf5 a4 29. Ne4 axb3 30. axb3 Ra3 31. Rb1 Kh7 32. Nd2 Bf8 33. Ng3 Na5 34. Nge4 Nd7 35. g3 Nf6 36. Nxf6+ Rxf6 37. Kg2 g5 38. Ra1 Rxa1 39. Rxa1 Nb7 40. Ne4 Rg6 41. Ra8 Kg8 42. Ra7 Rg7 43. Nf6+ Kh8 44. Ra8 Rf7 45. Ne4 Kg7 46. Ra6 Rd7 47. f4 gxf4 48. gxf4 exf4 49. Bxf4 Be7 50. Ng3 Kg6 51. Kf3 Bf8 52. Ne4 1/2-1/2

[Event "Doeberl Cup Major 48th"]
[Site "Canberra"]
[Date "2010.04.02"]
[Round "1"]
[White "Yu, Derek"]
[Black "Ninchich, Milan"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "1908"]
[BlackElo "1639"]
[PlyCount "78"]
[EventDate "2010.04.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "AUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. c4 Bb4+ 7. Nbd2 c6 8. Be2 0-0 9. 0-0 Nxd2 10. Bxd2 Bxd2 11. Qxd2 Nd7 12. cxd5 cxd5 13. Bd3 Nf6 14. Rfe1 Bg4 15. Ne5 Bh5 16. Re3 Bg6 17. Bxg6 fxg6 18. Qb4 Ne4 19. f3 Nd6 20. Rc1 Re8 21. Rec3 a5 22. Qb3 Nf5 23. Rc7 Nxd4 24. Qxb7 Ne6 25. Rd7 Qg5 26. Re1 Qd2 27. Kf1 Rab8 28. Qxd5 Qxd5 29. Rxd5 Rxb2 30. Nc4 Rxa2 31. Rde5 Rc8 32. Rxa5 Rxa5 33. Nxa5 Kf7 34. Nb7 Rc2 35. Nd6+ Kf6 36. Ne4+ Kf5 37. Ng3+ Kf6 38. Ne4+ Kf5 39. Ng3+ Kf6 1/2-1/2

[Event "Begonia op 44th"]
[Site "Ballarat"]
[Date "2010.03.08"]
[Round "7"]
[White "Yu, Derek"]
[Black "Booth, Stewart"]
[Result "1/2-1/2"]
[ECO "B52"]
[WhiteElo "1908"]
[BlackElo "2022"]
[PlyCount "38"]
[EventDate "2010.03.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "AUS"]
[SourceTitle "CBM 135 Extra"]
[Source "ChessBase"]
[SourceDate "2010.05.04"]
[SourceVersion "1"]
[SourceVersionDate "2010.05.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nc6 6. d4 cxd4 7. Nxd4 g6 8. Nc3 Bg7 9. Nde2 Nf6 10. f3 0-0 11. Be3 Rfd8 12. Qd2 b6 13. 0-0 Qb7 14. Rfd1 Rac8 15. Rab1 Ne5 16. b3 Ned7 17. Nf4 Re8 18. Nfd5 Nxd5 19. Nxd5 Nf6 1/2-1/2

[Event "Begonia op 44th"]
[Site "Ballarat"]
[Date "2010.03.06"]
[Round "2"]
[White "Yu, Derek"]
[Black "Morris, James"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "1908"]
[BlackElo "2174"]
[PlyCount "48"]
[EventDate "2010.03.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "AUS"]
[SourceTitle "CBM 135 Extra"]
[Source "ChessBase"]
[SourceDate "2010.05.04"]
[SourceVersion "1"]
[SourceVersionDate "2010.05.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 Ne7 4. d4 cxd4 5. cxd4 d5 6. Nc3 Nbc6 7. Bd3 dxe4 8. Bxe4 g6 9. d5 exd5 10. Nxd5 Nxd5 11. Bxd5 Bb4+ 12. Ke2 0-0 13. Be3 Qa5 14. Qb3 Ne7 15. Rhd1 Nxd5 16. Qxd5 Qa6+ 17. Qd3 b6 18. Ne1 Qa5 19. Qe4 Ba6+ 20. Kf3 Rfe8 21. Qf4 Bb7+ 22. Kg3 Re4 23. Qf6 Be7 24. Qc3 Bh4+ 0-1

[Event "Doeberl Cup 46th"]
[Site "Canberra"]
[Date "2008.03.21"]
[Round "3"]
[White "Yu, Derek"]
[Black "Wright, Neil"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1987"]
[BlackElo "2207"]
[PlyCount "54"]
[EventDate "2008.03.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "CBM 123 Extra"]
[Source "ChessBase"]
[SourceDate "2008.05.06"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.06"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. Be3 e5 5. f4 c6 6. h3 Be7 7. Nf3 exf4 8. Bxf4 Nh5 9. Be3 Ng3 10. Rg1 Nxf1 11. Rxf1 0-0 12. Qd2 Nf6 13. 0-0-0 Qa5 14. Kb1 Re8 15. g4 Bd8 16. e5 Nd5 17. Nxd5 Qxd5 18. Qf2 Be6 19. b3 a5 20. exd6 a4 21. Ne5 axb3 22. cxb3 Bh4 23. Qxh4 Rxa2 24. Nc4 Qe4+ 25. Kxa2 Qc2+ 26. Ka3 Bxc4 27. Rb1 Qc3 0-1

[Event "Doeberl Cup 46th"]
[Site "Canberra"]
[Date "2008.03.20"]
[Round "2"]
[White "Dilla, Edsil"]
[Black "Yu, Derek"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "2153"]
[BlackElo "1987"]
[PlyCount "74"]
[EventDate "2008.03.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "CBM 123 Extra"]
[Source "ChessBase"]
[SourceDate "2008.05.06"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.06"]
[SourceQuality "1"]

1. c4 c6 2. Nc3 d5 3. d4 dxc4 4. a4 e5 5. dxe5 Qxd1+ 6. Nxd1 Be6 7. e4 Nd7 8. Nf3 Ne7 9. Bf4 Ng6 10. Bg3 0-0-0 11. Nc3 Bb4 12. Be2 h6 13. Nd2 h5 14. h3 Ndxe5 15. Rd1 Nd3+ 16. Bxd3 Rxd3 17. Ndb1 Rhd8 18. Rxd3 cxd3 19. Kd2 Bb3 20. Na3 Bxa4 21. Nc4 Bb3 22. Ne3 Nf8 23. Bh4 f6 24. f4 Ne6 25. e5 g5 26. fxg5 fxg5 27. Bf2 Nc5 28. Ned1 Ne4+ 29. Ke3 Nxf2 30. Kxf2 Bc5+ 31. Kf3 Bd4 32. Ke4 Bxc3 33. Nxc3 d2 34. Nd1 Bc2+ 35. Ke3 Rd5 36. Rf1 Bxd1 37. Rxd1 Rxe5+ 0-1

[Event "Doeberl Cup 46th"]
[Site "Canberra"]
[Date "2008.03.20"]
[Round "1"]
[White "Yu, Derek"]
[Black "Zozulia, Anna"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1987"]
[BlackElo "2344"]
[PlyCount "76"]
[EventDate "2008.03.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "CBM 123 Extra"]
[Source "ChessBase"]
[SourceDate "2008.05.06"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.06"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 Nd7 5. Nf3 e6 6. Be3 a6 7. a4 Ne7 8. Bd3 b6 9. 0-0 Bb7 10. Qd2 c5 11. Ne2 c4 12. Bxc4 Bxe4 13. Ng3 Bb7 14. c3 Qc7 15. Bd3 Nf6 16. Ng5 h5 17. h3 h4 18. N3e4 Nf5 19. Bf2 Nh5 20. Be3 d5 21. Nf2 Nxe3 22. Qxe3 Qxf4 23. Ng4 Qxe3+ 24. Nxe3 Bh6 25. Nxf7 Bxe3+ 26. Kh2 Bf4+ 27. Rxf4 Nxf4 28. Nxh8 Nxd3 29. Nxg6 Kf7 30. Nxh4 Nxb2 31. Nf3 Nc4 32. Ng5+ Kf6 33. h4 e5 34. Rf1+ Kg6 35. Rf7 Bc6 36. Re7 Re8 37. Ra7 e4 38. g4 e3 0-1

[Event "AUS-ch U18"]
[Site "Sydney"]
[Date "2008.01.25"]
[Round "11"]
[White "Yu, Derek"]
[Black "Xu, William"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "1987"]
[PlyCount "121"]
[EventDate "2008.01.13"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. Bxc6 bxc6 5. d3 Ne7 6. 0-0 Ng6 7. b3 e5 8. Nbd2 d6 9. Re1 Be7 10. Nf1 0-0 11. Ng3 Be6 12. Be3 Qd7 13. Ng5 Rab8 14. Qd2 h6 15. Nxe6 fxe6 16. Nh5 Kh7 17. Rf1 Rf7 18. g3 Rbf8 19. f4 exf4 20. gxf4 d5 21. Qg2 Nh4 22. Qg4 d4 23. Bd2 g5 24. fxg5 Bxg5 25. Bxg5 Nf3+ 26. Kg2 Nxg5 27. Ng3 Qd6 28. Rxf7+ Rxf7 29. Rf1 Rxf1 30. Kxf1 Qc7 31. h4 Nf7 32. Nh5 Qe5 33. Nf4 Qf6 34. Ke2 Ne5 35. Qg3 Nd7 36. h5 e5 37. Ng6 Qg5 38. Qxg5 hxg5 39. Kf3 Nf6 40. Nxe5 Nxh5 41. Nxc6 Kg6 42. Nxa7 Nf6 43. Nc6 g4+ 44. Kg3 Kg5 45. a4 Nh5+ 46. Kg2 Nf4+ 47. Kg1 g3 48. Ne5 Kh4 49. Nf3+ Kg4 50. Ne1 Kh3 51. a5 Ne6 52. a6 Kg4 53. a7 Nc7 54. Kg2 Kf4 55. Nf3 Ke3 56. e5 Kf4 57. e6 Nd5 58. a8Q Ne3+ 59. Kg1 g2 60. Qe4+ Kg3 61. Nh2 1-0

[Event "AUS-ch U18"]
[Site "Sydney"]
[Date "2008.01.24"]
[Round "10"]
[White "Leung, Nicholas"]
[Black "Yu, Derek"]
[Result "0-1"]
[ECO "C55"]
[BlackElo "1987"]
[PlyCount "42"]
[EventDate "2008.01.13"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Nxe4 5. Bxf7+ Kxf7 6. Nxe4 d5 7. Neg5+ Kg8 8. d3 h6 9. Nh3 Bg4 10. Be3 Qf6 11. c3 Rd8 12. Nhg1 e4 13. dxe4 dxe4 14. Qb3+ Be6 15. Qxb7 Bd5 16. Nd2 Nb4 17. Qxc7 Nc2+ 18. Ke2 Nxa1 19. Bd4 Qa6+ 20. Kd1 Rc8 21. Qd7 Be6 0-1

[Event "AUS-ch U18"]
[Site "Sydney"]
[Date "2008.01.23"]
[Round "9"]
[White "Yu, Derek"]
[Black "Jule, Sebastian"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1987"]
[PlyCount "69"]
[EventDate "2008.01.13"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 c6 6. Bd2 Bf5 7. Ne4 Qd8 8. Ng3 Bg4 9. c3 h5 10. h3 Bxf3 11. Qxf3 h4 12. Ne4 Nxe4 13. Qxe4 e6 14. 0-0-0 Nd7 15. Bc4 Nf6 16. Qe2 Qc7 17. Rhe1 0-0-0 18. Bb3 Nd5 19. Qg4 Nf6 20. Qf3 Bd6 21. Kb1 Kb8 22. c4 Rh5 23. c5 Bh2 24. g3 Rf5 25. Bf4 Rxf4 26. gxf4 Bxf4 27. Rd3 Nd5 28. Bc4 g5 29. Qd1 Qa5 30. Ra3 Qb4 31. Ba6 Qxa3 32. Bf1 Qb4 33. Ka1 Nf6 34. a3 Qxd4 35. Re5 0-1

[Event "AUS-ch U18"]
[Site "Sydney"]
[Date "2008.01.21"]
[Round "8"]
[White "Chau, Adrian"]
[Black "Yu, Derek"]
[Result "1/2-1/2"]
[ECO "C56"]
[BlackElo "1987"]
[PlyCount "59"]
[EventDate "2008.01.13"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qh5 9. Nxe4 Be6 10. Bg5 h6 11. Bf6 Qg6 12. Nh4 Qg4 13. Qd3 Be7 14. Bxe7 Nxe7 15. Nf3 Ng6 16. h3 Qh5 17. Qxd4 0-0 18. Ng3 Qd5 19. Qc3 c6 20. Rad1 Qc4 21. Qxc4 Bxc4 22. Ne5 Nxe5 23. Rxe5 Be6 24. Re2 Rfd8 25. Rxd8+ Rxd8 26. a3 Rd1+ 27. Kh2 Kf8 28. b3 a5 29. f3 b5 30. Ne4 1/2-1/2

[Event "AUS-ch U18"]
[Site "Sydney"]
[Date "2008.01.20"]
[Round "7"]
[White "Yu, Derek"]
[Black "Vather, Tejas"]
[Result "1-0"]
[ECO "B09"]
[WhiteElo "1987"]
[PlyCount "100"]
[EventDate "2008.01.13"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 Bg4 6. h3 Bxf3 7. Qxf3 Nc6 8. Be3 e5 9. fxe5 dxe5 10. d5 Nd4 11. Qf2 c5 12. dxc6 Nxc6 13. Bc4 0-0 14. 0-0 Na5 15. Bb3 Qc7 16. Nd5 Nxd5 17. Bxd5 Rac8 18. Bxa7 Nc4 19. b3 b6 20. Bxc4 Qxa7 21. a4 Qb7 22. Bd5 Qc7 23. c4 Rcd8 24. b4 Rxd5 25. cxd5 Qc4 26. Qe3 f5 27. Rfc1 Qxb4 28. Rcb1 Qc4 29. d6 Qd4 30. Qxd4 exd4 31. exf5 d3 32. Ra3 d2 33. Rd3 Bh6 34. d7 Rd8 35. fxg6 hxg6 36. Kf2 Rf8+ 37. Ke2 Rd8 38. Rxb6 Kf7 39. a5 Ke7 40. Rxg6 Bf4 41. a6 Bb8 42. Kxd2 Ba7 43. Rg4 Ke6 44. Re4+ Kf7 45. Re8 Rxe8 46. dxe8Q+ Kxe8 47. Rb3 Kd8 48. Rb7 Bg1 49. a7 Bxa7 50. Rxa7 Kc8 1-0

[Event "AUS-ch U18"]
[Site "Sydney"]
[Date "2008.01.19"]
[Round "6"]
[White "Hendrey, Kevin"]
[Black "Yu, Derek"]
[Result "0-1"]
[ECO "C29"]
[BlackElo "1987"]
[PlyCount "80"]
[EventDate "2008.01.13"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Nf3 Bf5 6. d4 Bb4 7. Bd2 Bg4 8. Nxe4 dxe4 9. Bxb4 exf3 10. gxf3 Qh4+ 11. Ke2 Nc6 12. Be1 Nxd4+ 13. Kd3 Qe7 14. fxg4 0-0-0 15. Ke4 Nc6 16. Qc1 Qxe5+ 17. Kf3 Qd5+ 18. Kg3 Qxh1 19. Qf4 Qd5 20. Bc3 f6 21. Re1 Qd6 22. Bg2 Qxf4+ 23. Kxf4 Rhe8 24. Be4 Ne7 25. Bxh7 Nd5+ 26. Kf3 Nxc3 27. Bf5+ Kb8 28. Rxe8 Rxe8 29. bxc3 c6 30. Kf4 Rh8 31. Kg3 Kc7 32. h4 Kd6 33. g5 Ke5 34. Kg4 Rxh4+ 35. Kxh4 Kxf5 36. gxf6 Kxf6 37. Kg4 Ke5 38. Kg5 Kd5 39. Kg6 Kc4 40. Kxg7 Kxc3 0-1

[Event "AUS-ch U18"]
[Site "Sydney"]
[Date "2008.01.18"]
[Round "5"]
[White "Yu, Derek"]
[Black "Bonch Osmolovskiy, Ilya"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1987"]
[PlyCount "175"]
[EventDate "2008.01.13"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. c3 d6 6. h3 a6 7. Bb3 b5 8. Nbd2 Bb7 9. Ng5 0-0 10. Nf1 h6 11. Nf3 Nh5 12. g3 Qb8 13. Nh4 Nf6 14. Qf3 Re8 15. Bxh6 Ne7 16. Bg5 Qa7 17. Bxf6 gxf6 18. Qxf6 d5 19. exd5 Nxd5 20. Qg5+ Kf8 21. Nf5 Re6 22. Qg7+ Ke8 23. Qg8+ Kd7 24. Qxf7+ Be7 25. Bxd5 Bxd5 26. Nxe7 Bxh1 27. Nf5+ Re7 28. Qxe7+ Kc6 29. N1e3 Bf3 30. Qxe5 Rd8 31. Qf6+ Kb7 32. Qxd8 Qc5 33. Nd4 Qh5 34. Nxf3 Qxf3 35. Qd5+ Qxd5 36. Nxd5 c5 37. h4 Kc6 38. h5 Kxd5 39. h6 c4 40. dxc4+ bxc4 41. h7 a5 42. 0-0-0+ Ke4 43. h8N a4 44. g4 Kf4 45. Rd4+ Kf3 46. Rxc4 Kxf2 47. Rxa4 Kf3 48. g5 Ke3 49. g6 Kf3 50. g7 Ke3 51. g8N Kd3 52. Rd4+ Ke3 53. a4 Kf3 54. a5 Ke3 55. a6 Kf3 56. a7 Ke2 57. a8N Kf2 58. b4 Ke2 59. b5 Kf2 60. b6 Ke3 61. b7 Kf3 62. b8N Ke3 63. Rd7 Ke4 64. c4 Ke5 65. c5 Kf5 66. c6 Ke6 67. c7 Ke5 68. c8N Ke4 69. Nge7 Ke3 70. Nhg6 Ke4 71. Nf8 Ke3 72. Rd5 Ke4 73. Nd6+ Kf4 74. Nfg6+ Kf3 75. Rd4 Ke3 76. Nef5+ Kf3 77. Nb6 Kf2 78. N8d7 Kf3 79. Nf6 Ke2 80. Nbd5 Kf2 81. Ne5 Ke2 82. Nf4+ Kf2 83. Rd3 Kf1 84. Ndf7 Kg1 85. Nf3+ Kf2 86. N7d6 Kf1 87. Ng3+ Kf2 88. Nde4# 1-0

[Event "AUS-ch U18"]
[Site "Sydney"]
[Date "2008.01.16"]
[Round "4"]
[White "Encel, Benjamin"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "D19"]
[BlackElo "1987"]
[PlyCount "85"]
[EventDate "2008.01.13"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. 0-0 Nbd7 9. Qe2 Bg6 10. e4 0-0 11. Bd3 Bh5 12. e5 Nd5 13. Ne4 Be7 14. Ng3 Bg6 15. Bxg6 fxg6 16. Ne4 c5 17. a5 h6 18. Nc3 Nxc3 19. bxc3 Nb8 20. Qc4 Qc8 21. d5 exd5 22. Qxd5+ Kh7 23. e6 Bf6 24. Rb1 Bxc3 25. Rxb7 Nc6 26. Rd7 Nd4 27. Nxd4 Bxd4 28. Qe4 Rf5 29. Bf4 Qe8 30. Rb1 Rf6 31. Rd6 Rb8 32. Rxb8 Qxb8 33. g3 Qb4 34. Kg2 Qa4 35. e7 Qa2 36. e8Q Qxf2+ 37. Kh3 Rxd6 38. Bxd6 Qf1+ 39. Qg2 Qf5+ 40. g4 Qd3+ 41. Bg3 h5 42. Qee4 hxg4+ 43. Kxg4 1-0

[Event "AUS-ch U18"]
[Site "Sydney"]
[Date "2008.01.15"]
[Round "3"]
[White "Yu, Derek"]
[Black "Dalton, Samuel"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1987"]
[BlackElo "1735"]
[PlyCount "72"]
[EventDate "2008.01.13"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 a6 5. Qd2 Nd7 6. Nf3 b5 7. a4 b4 8. Ne2 c5 9. Ng3 Bb7 10. a5 h5 11. h4 Ngf6 12. Bc4 Ng4 13. Ng5 0-0 14. c3 Nxe3 15. fxe3 bxc3 16. bxc3 cxd4 17. exd4 Nf6 18. 0-0 d5 19. exd5 Bxd5 20. Bd3 Qc7 21. Ne2 Qc6 22. Nf4 Bc4 23. Rfe1 Bxd3 24. Nxd3 Nd5 25. Nc5 Rfd8 26. Kh1 Nxc3 27. Rxe7 Qxc5 28. Rxf7 Rxd4 29. Rxg7+ Kh8 30. Rh7+ Kg8 31. Qe1 Ne2 32. Ne6 Qd6 33. Rg7+ Kh8 34. Rxg6 Re4 35. Rd1 Rxh4+ 36. Qxh4 Qxd1+ 0-1

[Event "AUS-ch U18"]
[Site "Sydney"]
[Date "2008.01.14"]
[Round "2"]
[White "Milton, Anthony W"]
[Black "Yu, Derek"]
[Result "1/2-1/2"]
[ECO "D10"]
[BlackElo "1987"]
[PlyCount "75"]
[EventDate "2008.01.13"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 dxc4 4. e4 b5 5. a4 b4 6. Na2 Nf6 7. e5 Nd5 8. Bxc4 a5 9. Ne2 e6 10. 0-0 Nd7 11. Kh1 c5 12. Bxd5 exd5 13. Nf4 Nb6 14. e6 Be7 15. exf7+ Kxf7 16. Nd3 cxd4 17. Ne5+ Kg8 18. Nc6 Qd6 19. Nxe7+ Qxe7 20. Qxd4 Qf6 21. Qxf6 gxf6 22. b3 Be6 23. Be3 Nc4 24. bxc4 dxc4 25. Bd2 Bd7 26. Nxb4 axb4 27. Bxb4 Rxa4 28. Rxa4 Bxa4 29. Ra1 Bc2 30. Ra8+ Kg7 31. Rxh8 Kxh8 32. Bc3 Kg7 33. f4 Kf7 34. Kg1 Ke6 35. Kf2 f5 36. Ke3 Kd5 37. h3 h5 38. Ba1 1/2-1/2

[Event "AUS-ch U18"]
[Site "Sydney"]
[Date "2008.01.13"]
[Round "1"]
[White "Yu, Derek"]
[Black "Morris, Gill"]
[Result "1-0"]
[ECO "B52"]
[WhiteElo "1987"]
[PlyCount "69"]
[EventDate "2008.01.13"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 e5 6. Nc3 Ne7 7. 0-0 g6 8. d3 Bg7 9. a3 Nbc6 10. Rb1 0-0 11. b4 b6 12. b5 Nd8 13. a4 f5 14. Ra1 f4 15. Qb3 Nf7 16. h3 g5 17. Nh2 Kh8 18. Bd2 Nh6 19. f3 Nhg8 20. a5 h5 21. axb6 axb6 22. Ra6 Rab8 23. Rfa1 Nh6 24. Ra7 Rb7 25. Rxb7 Qxb7 26. Qa4 g4 27. Qa7 Qc8 28. Qxe7 Bf6 29. Qxd6 gxh3 30. Nd5 Ng8 31. Nxf6 Rxf6 32. Qxe5 Qf8 33. Qxh5+ Rh6 34. Bc3+ Nf6 35. Ra8 1-0

[Event "World ol U16 06th"]
[Site "Singapore"]
[Date "2007.08.12"]
[Round "10"]
[White "Mak, Tong Kuan"]
[Black "Yu, Derek"]
[Result "0-1"]
[ECO "C55"]
[BlackElo "1996"]
[PlyCount "48"]
[EventDate "2007.08.05"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "SIN"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Nxe4 5. Nxe4 d5 6. Bb5 dxe4 7. Nxe5 Qd5 8. Nxc6 Qxb5 9. Nd4 Qe5 10. Nb3 Bd6 11. Qe2 Bf5 12. c3 0-0-0 13. Nd4 Bg6 14. Nb5 Bh5 15. g4 Bg6 16. Nxa7+ Kb8 17. Nb5 h5 18. Nxd6 Qxd6 19. g5 Bf5 20. Qe3 Bg4 21. Qg3 Qd5 22. 0-0 Be2 23. Re1 h4 24. Qf4 Bf3 0-1

[Event "World ol U16 06th"]
[Site "Singapore"]
[Date "2007.08.11"]
[Round "9"]
[White "So, Byunghoon"]
[Black "Yu, Derek"]
[Result "0-1"]
[ECO "C59"]
[BlackElo "1996"]
[PlyCount "36"]
[EventDate "2007.08.05"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "SIN"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 9. Nf3 e4 10. Ne5 Bd6 11. Ng4 Nh7 12. 0-0 f5 13. Ne3 0-0 14. Nc3 f4 15. Ng4 f3 16. gxf3 exf3 17. Bxf3 Qh4 18. Re1 Bxg4 0-1

[Event "World ol U16 06th"]
[Site "Singapore"]
[Date "2007.08.10"]
[Round "8"]
[White "Yu, Derek"]
[Black "Ediriwera, Shakthi"]
[Result "1/2-1/2"]
[ECO "B52"]
[WhiteElo "1996"]
[PlyCount "43"]
[EventDate "2007.08.05"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "SIN"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nc6 6. d4 Qg4 7. 0-0 Nxd4 8. Nxd4 Qxd1 9. Rxd1 cxd4 10. Rxd4 g6 11. Be3 Bg7 12. Rd2 Rc8 13. Bd4 Nf6 14. b3 0-0 15. Nc3 a6 16. Rad1 b5 17. Bxf6 Bxf6 18. Nd5 bxc4 19. Nxf6+ exf6 20. Rxd6 Rfe8 21. f3 f5 22. exf5 1/2-1/2

[Event "World ol U16 06th"]
[Site "Singapore"]
[Date "2007.08.08"]
[Round "7"]
[White "Liao, Chun Che Tim"]
[Black "Yu, Derek"]
[Result "0-1"]
[ECO "C96"]
[BlackElo "1996"]
[PlyCount "81"]
[EventDate "2007.08.05"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "SIN"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[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 Nd7 12. Nbd2 exd4 13. cxd4 Nc6 14. Nf1 Bf6 15. Be3 Qc7 16. Rc1 Rd8 17. b3 Qb6 18. d5 Nce5 19. Nxe5 Nxe5 20. f4 Ng6 21. g4 Bc3 22. Nd2 Bd7 23. Bb1 Bb2 24. Rc2 Bd4 25. Qf3 c4 26. bxc4 Bxe3+ 27. Rxe3 bxc4 28. Rxc4 Rdc8 29. Rxc8+ Rxc8 30. Kh2 Qb2 31. Re2 Bb5 32. Rf2 Rc3 33. Qd1 Nxf4 34. Rxf4 Rc1 35. Qxc1 Qxc1 36. Rf2 Qe1 37. Kg2 Be2 38. Nb3 Bxg4 39. hxg4 Qxb1 40. Re2 Qd3 41. Rd2 0-1

[Event "World ol U16 06th"]
[Site "Singapore"]
[Date "2007.08.08"]
[Round "6"]
[White "Yu, Derek"]
[Black "Chibesakunda, Chushi"]
[Result "1-0"]
[ECO "B03"]
[WhiteElo "1996"]
[PlyCount "33"]
[EventDate "2007.08.05"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "SIN"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 d5 6. c5 N6d7 7. Bd3 g6 8. Nf3 Bg7 9. Nc3 c6 10. 0-0 0-0 11. f5 gxf5 12. Bxf5 e6 13. Bxh7+ Kxh7 14. Ng5+ Kg6 15. Qd3+ Kh5 16. Qh3+ Kg6 17. Qh7# 1-0

[Event "World ol U16 06th"]
[Site "Singapore"]
[Date "2007.08.07"]
[Round "4"]
[White "Huang, Vincent"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "D10"]
[BlackElo "1996"]
[PlyCount "63"]
[EventDate "2007.08.05"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "SIN"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 dxc4 4. e4 b5 5. a4 b4 6. Na2 Nf6 7. f3 e6 8. Bxc4 a5 9. Be3 Ba6 10. Qc2 Qb6 11. Nc1 Nbd7 12. Nb3 Be7 13. Ne2 0-0 14. Bf2 Bxc4 15. Qxc4 Qa6 16. Qxa6 Rxa6 17. 0-0 Rc8 18. Rfc1 Raa8 19. Rc2 e5 20. Rac1 exd4 21. Nexd4 Ne5 22. Nxc6 Nxc6 23. Rxc6 Rxc6 24. Rxc6 Bd8 25. Bb6 Bxb6+ 26. Rxb6 Kf8 27. Rb7 Rc8 28. Nxa5 Rc1+ 29. Kf2 Rc2+ 30. Kg3 Rxb2 31. Rb8+ Ke7 32. Nc4 1-0

[Event "World ol U16 06th"]
[Site "Singapore"]
[Date "2007.08.07"]
[Round "5"]
[White "Yu, Derek"]
[Black "Rajapaksha, RMCM"]
[Result "1/2-1/2"]
[ECO "B52"]
[WhiteElo "1996"]
[BlackElo "2148"]
[PlyCount "71"]
[EventDate "2007.08.05"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "SIN"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. 0-0 Ngf6 6. Qe2 g6 7. c3 Bg7 8. d4 e6 9. Rd1 Qc7 10. Bf4 e5 11. Bg3 Nh5 12. Na3 Nxg3 13. hxg3 a6 14. dxc5 dxc5 15. Nc4 0-0 16. Rd5 b5 17. Ne3 Nb6 18. Rd2 Rad8 19. Rad1 Rxd2 20. Rxd2 Rd8 21. b3 Bh6 22. Rxd8+ Qxd8 23. Nxe5 Bxe3 24. fxe3 Qf6 25. Qd3 Qxe5 26. Qd8+ Kg7 27. Qxb6 Qxc3 28. Qxa6 Qxe3+ 29. Kh2 Qh6+ 30. Kg1 Qe3+ 31. Kh2 b4 32. Qc4 Qd4 33. Qc1 Qf2 34. Qf4 Qxa2 35. Qe5+ Kg8 36. Qe8+ 1/2-1/2

[Event "World ol U16 06th"]
[Site "Singapore"]
[Date "2007.08.06"]
[Round "2"]
[White "Ahbabi, Saeed"]
[Black "Yu, Derek"]
[Result "0-1"]
[ECO "D02"]
[BlackElo "1996"]
[PlyCount "48"]
[EventDate "2007.08.05"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "SIN"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. c3 Nc6 5. e3 Bg4 6. Nbd2 e6 7. h3 Bh5 8. Be2 Be7 9. Ne5 Bxe2 10. Qxe2 0-0 11. g4 Nd7 12. Ndf3 f6 13. Nd3 c4 14. Nc1 b5 15. h4 b4 16. g5 bxc3 17. bxc3 Qa5 18. Qc2 e5 19. gxf6 Bxf6 20. Ng5 g6 21. Bg3 exd4 22. exd4 Nxd4 23. Qd2 Nf3+ 24. Nxf3 Bxc3 0-1

[Event "World ol U16 06th"]
[Site "Singapore"]
[Date "2007.08.06"]
[Round "3"]
[White "Yu, Derek"]
[Black "Uesugi, Shinsaku"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "1996"]
[BlackElo "2154"]
[PlyCount "68"]
[EventDate "2007.08.05"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "SIN"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. Nc3 e5 7. 0-0 Ne7 8. Be3 Qd6 9. Nd2 b6 10. f4 Be6 11. Qf3 f6 12. fxe5 fxe5 13. Qg3 0-0-0 14. Nf3 h6 15. a3 g5 16. b4 cxb4 17. axb4 Kb7 18. b5 Ng6 19. Ra4 Nf4 20. Rfa1 Ra8 21. d4 exd4 22. Nxd4 Bxd4 23. Rxd4 Qe5 24. bxc6+ Kxc6 25. Rad1 Rhg8 26. Bxf4 gxf4 27. Qd3 Raf8 28. Nb5 f3 29. Qc3+ Qc5 30. Nxa7+ Kc7 31. Nb5+ Kb8 32. Qxc5 bxc5 33. R4d2 Bc4 34. Nc3 h5 1/2-1/2

[Event "World ol U16 06th"]
[Site "Singapore"]
[Date "2007.08.05"]
[Round "1"]
[White "Yu, Derek"]
[Black "Yilmaz, Mustafa"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "1996"]
[BlackElo "2204"]
[PlyCount "150"]
[EventDate "2007.08.05"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "SIN"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Qxd4 e5 6. Qd3 h6 7. Nc3 Ngf6 8. Be3 Be7 9. h3 Qc7 10. b4 0-0 11. Bc4 d5 12. Nxd5 Nxd5 13. Bxd5 Bxb4+ 14. Bd2 Nc5 15. Qc4 Bxd2+ 16. Kxd2 Be6 17. Bxe6 fxe6 18. Ke3 Rf4 19. Nd2 Rd8 20. f3 Rxd2 21. Kxd2 Nxe4+ 22. Qxe4 Rxe4 23. fxe4 Qc4 24. Rae1 Qd4+ 25. Kc1 Qa1+ 26. Kd2 Qxa2 27. Re3 Qc4 28. Rb1 b5 29. Rbb3 b4 30. Rbd3 Qc6 31. Rb3 Qa6 32. Rbd3 Qb7 33. Rb3 a5 34. c3 bxc3+ 35. Rbxc3 a4 36. Ke2 Qb2+ 37. Kf3 Qb1 38. Kf2 Kh7 39. g3 Qh1 40. h4 Qh2+ 41. Kf1 Kg6 42. Ra3 Qb2 43. Rad3 Qc1+ 44. Ke2 Kh5 45. Kf2 Kg4 46. Ke2 Kh3 47. Kf2 Kh2 48. Ke2 h5 49. Kf2 Qc2+ 50. Kf1 Kh3 51. Ke1 Qg2 52. Kd1 Kg4 53. Ke1 g5 54. hxg5 Kxg5 55. Ra3 Qg1+ 56. Ke2 Qb1 57. Rad3 h4 58. gxh4+ Kxh4 59. Kf2 Kg4 60. Ke2 Kf4 61. Kf2 Qc2+ 62. Ke1 Qg2 63. Ra3 Qg1+ 64. Ke2 Qb1 65. Rad3 Qb5 66. Ke1 Qc5 67. Ke2 Qb6 68. Rc3 Qd4 69. Rcd3 Qc4 70. Ke1 Qa6 71. Rc3 Qa5 72. Ke2 Qb5+ 73. Rcd3 a3 74. Kf2 a2 75. Rd1 Qc5 0-1

[Event "Sydney op"]
[Site "Parramatta"]
[Date "2007.04.14"]
[Round "9"]
[White "Dragicevic, Domagoj"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2196"]
[BlackElo "1958"]
[PlyCount "59"]
[EventDate "2007.04.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "CBM 117 Extra"]
[Source "ChessBase"]
[SourceDate "2007.05.09"]
[SourceVersion "1"]
[SourceVersionDate "2007.05.09"]
[SourceQuality "1"]

1. h4 e5 2. b3 Nf6 3. Bb2 Nc6 4. e3 d5 5. Nf3 Bd6 6. d4 exd4 7. Nxd4 Ne5 8. Be2 c6 9. Nd2 Qe7 10. c4 Neg4 11. cxd5 Nxe3 12. Qc1 Nfxd5 13. Nxc6 bxc6 14. Qxc6+ Qd7 15. Qxd7+ Bxd7 16. fxe3 Nxe3 17. Ne4 Be7 18. Kf2 Nf5 19. g4 Nxh4 20. Bxg7 Rg8 21. Nf6+ Bxf6 22. Bxf6 Ng6 23. Bc4 Nf8 24. Rhe1+ Ne6 25. g5 h6 26. gxh6 Rg6 27. Bg7 0-0-0 28. Rg1 Nxg7 29. Rxg6 Nf5 30. Bxf7 1-0

[Event "Sydney op"]
[Site "Parramatta"]
[Date "2007.04.14"]
[Round "8"]
[White "Yu, Derek"]
[Black "Ninchich, Milan"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "1958"]
[BlackElo "1771"]
[PlyCount "57"]
[EventDate "2007.04.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 Be7 7. Re1 Nd6 8. Nxe5 0-0 9. Nc3 b5 10. Bb3 Bf6 11. Nd5 Na5 12. Qf3 Nxb3 13. axb3 Rb8 14. Qg4 Ne8 15. Nxf6+ Nxf6 16. Qg3 Nh5 17. Qf3 Nf6 18. Qg3 Nh5 19. Qf3 Nf6 20. Bg5 Rb6 21. Ng4 Bb7 22. Qg3 Kh8 23. Qh4 Bd5 24. Re3 Kg8 25. Rh3 h6 26. Nxh6+ gxh6 27. Qxh6 Nh5 28. Qxh5 Qxg5 29. Qh7# 1-0

[Event "Sydney op"]
[Site "Parramatta"]
[Date "2007.04.13"]
[Round "7"]
[White "Guo, Emma"]
[Black "Yu, Derek"]
[Result "0-1"]
[ECO "D05"]
[WhiteElo "1535"]
[BlackElo "1958"]
[PlyCount "124"]
[EventDate "2007.04.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c3 Nc6 5. Bd3 Bg4 6. Nbd2 e6 7. 0-0 Bd6 8. Qa4 c4 9. Bb1 0-0 10. h3 Bh5 11. Nh2 a6 12. f4 b5 13. Qc2 Bg6 14. Qd1 Bxb1 15. Rxb1 Nd7 16. Nhf3 f5 17. Ne5 Ndxe5 18. fxe5 Be7 19. Nf3 Qe8 20. Bd2 h5 21. h4 Nd8 22. Qe1 Nf7 23. Qg3 Kh7 24. Be1 Rg8 25. Ng5+ Nxg5 26. hxg5 Qg6 27. Kh2 Bxg5 28. Rh1 f4 29. exf4 Qxb1 30. Qxg5 Qg6 31. Qh4 Qg4 32. Qxg4 hxg4 33. Kg3+ Kg6 34. Kxg4 Rh8 35. Bh4 a5 36. a3 Rab8 37. g3 b4 38. axb4 axb4 39. Rc1 bxc3 40. bxc3 Rb3 41. Kf3 Ra8 42. Ke2 Kf5 43. Rc2 Ke4 44. Be7 Rh8 45. Bh4 Rhb8 46. Kd2 Rb2 47. Bg5 Rxc2+ 48. Kxc2 Ra8 49. Kb2 Kd3 50. Be7 Rh8 51. Bh4 Rb8+ 52. Kc1 Kxc3 53. g4 Kd3 54. Be1 c3 55. Bxc3 Kxc3 56. f5 Kxd4 57. f6 Kxe5 58. fxg7 Rg8 59. g5 Rxg7 60. g6 Rg8 61. g7 Ra8 62. g8Q Rxg8 0-1

[Event "Sydney op"]
[Site "Parramatta"]
[Date "2007.04.13"]
[Round "6"]
[White "Yu, Derek"]
[Black "Harris, Benjamin"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1958"]
[BlackElo "1817"]
[PlyCount "120"]
[EventDate "2007.04.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be3 cxd4 7. cxd4 Nc6 8. Nc3 Qd6 9. a3 Be7 10. Bd3 0-0 11. 0-0 a6 12. Ng5 Qd8 13. Qc2 h6 14. Nf3 Bd6 15. Rfd1 Qc7 16. Rac1 Ng4 17. h3 Nxe3 18. fxe3 Qe7 19. Ne4 Bb8 20. Rf1 Kh8 21. Qe2 f5 22. Nc5 e5 23. Qf2 e4 24. Nh4 Qf6 25. Bxe4 fxe4 26. Ng6+ Qxg6 27. Qxf8+ Kh7 28. Qf7 Qg3 29. Nxe4 Qxe3+ 30. Nf2 Bg3 31. d5 Ne5 32. Qf8 Bxf2+ 33. Qxf2 Qxf2+ 34. Rxf2 Nd3 35. Rc7 Nxf2 36. Kxf2 Bf5 37. Rxb7 Rd8 38. Rb6 Rxd5 39. Rxa6 Rd2+ 40. Kf3 Rxb2 41. Ra7 Bd3 42. g4 Bf1 43. h4 Rc2 44. g5 hxg5 45. hxg5 Rc5 46. Kg4 Kg6 47. Kf4 Rf5+ 48. Kg4 Rxg5+ 49. Kf4 Rf5+ 50. Kg4 Rf6 51. Rc7 Be2+ 52. Kh4 Rf4+ 53. Kg3 Rf3+ 54. Kh4 Rxa3 55. Rc3 Ra4+ 56. Kh3 Bg4+ 57. Kh4 Bf5+ 58. Kg3 Kg5 59. Kf3 Rd4 60. Kg2 Rd3 0-1

[Event "Sydney op"]
[Site "Parramatta"]
[Date "2007.04.12"]
[Round "5"]
[White "Bucher, Denis"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "2315"]
[BlackElo "1958"]
[PlyCount "57"]
[EventDate "2007.04.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. a3 Be7 5. d4 exd4 6. Nxd4 d6 7. Bc4 0-0 8. 0-0 Nxd4 9. Qxd4 Ng4 10. Nd5 Bf6 11. Qd1 Re8 12. f3 Ne5 13. Be2 Be6 14. Be3 Bxd5 15. Qxd5 c6 16. Qb3 b5 17. Rfd1 Qc7 18. a4 bxa4 19. Rxa4 Reb8 20. Qa3 c5 21. c3 Rb6 22. b4 Qb8 23. bxc5 Rb3 24. Qa1 Rb2 25. Ra2 Rxa2 26. Qxa2 dxc5 27. Bxc5 Nc6 28. Rd7 Bxc3 29. Rxf7 1-0

[Event "Sydney op"]
[Site "Parramatta"]
[Date "2007.04.12"]
[Round "4"]
[White "Yu, Derek"]
[Black "Yu, Ronald"]
[Result "0-1"]
[ECO "B17"]
[WhiteElo "1958"]
[BlackElo "2177"]
[PlyCount "84"]
[EventDate "2007.04.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Ng5 Ngf6 6. Bd3 e6 7. N1f3 Bd6 8. Qe2 h6 9. Ne4 Nxe4 10. Qxe4 Qc7 11. 0-0 b6 12. Qg4 g5 13. Qh3 Rg8 14. Nd2 Bb7 15. Ne4 0-0-0 16. c3 f5 17. Nxd6+ Qxd6 18. Re1 c5 19. Qe3 Rge8 20. a4 f4 21. Qe2 cxd4 22. cxd4 Qxd4 23. Bd2 Nc5 24. Bb5 Qxd2 25. Qxd2 Rxd2 26. Bxe8 Rxb2 27. Rac1 Kd8 28. Bb5 Bd5 29. Bc4 Bxc4 30. Rxc4 Ra2 31. h4 Ke7 32. hxg5 hxg5 33. Rd1 Rxa4 34. Rxa4 Nxa4 35. Kh2 b5 36. Kh3 a5 37. Kg4 b4 38. Kxg5 Nc3 39. Rh1 a4 40. Kxf4 a3 41. Kg5 b3 42. Rh7+ Kf8 0-1

[Event "Sydney op"]
[Site "Parramatta"]
[Date "2007.04.11"]
[Round "3"]
[White "Stojic, Dusan"]
[Black "Yu, Derek"]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "2271"]
[BlackElo "1958"]
[PlyCount "86"]
[EventDate "2007.04.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "CBM 117 Extra"]
[Source "ChessBase"]
[SourceDate "2007.05.09"]
[SourceVersion "1"]
[SourceVersionDate "2007.05.09"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Bg4 3. Bg2 Nd7 4. c4 dxc4 5. Na3 Ngf6 6. Nxc4 c6 7. 0-0 g6 8. Nce5 Nxe5 9. Nxe5 Be6 10. d4 Bg7 11. e4 0-0 12. Be3 Qc7 13. Qc2 Rac8 14. Rac1 Rfd8 15. Rfd1 c5 16. Nf3 Ng4 17. Bf4 Qb6 18. d5 Bd7 19. h3 Nf6 20. Ne5 Nh5 21. Nc4 Qa6 22. Bg5 Bf6 23. Bxf6 Nxf6 24. b3 Ne8 25. a4 Nd6 26. Ne3 c4 27. Nxc4 Nxc4 28. Bf1 Ne3 29. Qxc8 Rxc8 30. Bxa6 Nxd1 31. Rxd1 bxa6 32. Rd3 Bxh3 33. f4 Rc2 34. d6 exd6 35. Rxd6 Be6 36. Rxa6 Bxb3 37. Rxa7 Rc4 38. a5 Rxe4 39. a6 Ra4 40. Ra8+ Kg7 41. a7 Bd5 42. Rd8 Be4 43. Rd7 Ra2 0-1

[Event "Sydney op"]
[Site "Parramatta"]
[Date "2007.04.11"]
[Round "2"]
[White "Yu, Derek"]
[Black "Evans, David A"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1958"]
[BlackElo "1587"]
[PlyCount "75"]
[EventDate "2007.04.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 g6 5. Nb5 Qd8 6. Bf4 Na6 7. Nf3 c6 8. Nc3 Nc7 9. Bc4 Bg7 10. 0-0 Nf6 11. Re1 0-0 12. Qe2 Ncd5 13. Nxd5 Nxd5 14. Bxd5 Qxd5 15. Qxe7 Bg4 16. c3 Bxf3 17. gxf3 Qxf3 18. Bg3 b6 19. Re4 Bf6 20. Re3 Qxg3+ 21. hxg3 Bxe7 22. Rxe7 Rfe8 23. Rae1 Kf8 24. Rxe8+ Rxe8 25. Rxe8+ Kxe8 26. Kg2 Ke7 27. Kf3 Ke6 28. Ke4 h6 29. c4 f5+ 30. Kf4 g5+ 31. Ke3 a5 32. a4 Kd6 33. Kf3 h5 34. Kg2 b5 35. axb5 cxb5 36. cxb5 Kc7 37. d5 a4 38. Kh3 1-0

[Event "Sydney op"]
[Site "Parramatta"]
[Date "2007.04.10"]
[Round "1"]
[White "Johansen, Darryl Keith"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "2456"]
[BlackElo "1958"]
[PlyCount "113"]
[EventDate "2007.04.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "AUS"]
[SourceTitle "CBM 117 Extra"]
[Source "ChessBase"]
[SourceDate "2007.05.09"]
[SourceVersion "1"]
[SourceVersionDate "2007.05.09"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Nd4 5. Bg2 Nxf3+ 6. Bxf3 Bb4 7. Qc2 0-0 8. a3 Bxc3 9. Qxc3 Re8 10. 0-0 c6 11. d3 d6 12. Bg2 Bg4 13. Re1 Qd7 14. Bg5 Nh5 15. Be3 Bh3 16. Bf3 Bg4 17. d4 Bxf3 18. exf3 exd4 19. Qxd4 Nf6 20. Rad1 Red8 21. Bg5 Qf5 22. Bxf6 Qxf6 23. Qxf6 gxf6 24. Re7 Rab8 25. Rc7 Kf8 26. Rd4 a5 27. Rf4 Kg7 28. Re4 Rdc8 29. Rd7 Rd8 30. Ree7 Rxd7 31. Rxd7 b5 32. Rxd6 bxc4 33. Rxc6 Rxb2 34. Rxc4 Rb5 35. Kg2 f5 36. Kh3 Kg6 37. Rc6+ f6 38. Ra6 Kg5 39. f4+ Kg6 40. a4 Rc5 41. Kg2 Kf7 42. Ra7+ Kg6 43. Kh3 Rc2 44. Kg2 Rc5 45. Ra8 Kf7 46. Ra6 Kg6 47. Ra7 Rd5 48. Kf3 Rd3+ 49. Ke2 Rd5 50. Ke3 h6 51. Rb7 Rd6 52. Rb5 Ra6 53. Kd3 Rd6+ 54. Kc3 Rc6+ 55. Kb3 Ra6 56. h3 h5 57. h4 1-0

[Event "AUS-ch U18"]
[Site "Canberra"]
[Date "2007.01.26"]
[Round "11"]
[White "Van Dijk, Devrim"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "D18"]
[WhiteElo "1750"]
[BlackElo "1808"]
[PlyCount "75"]
[EventDate "2007.01.14"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. 0-0 0-0 9. Nh4 Bg6 10. Nxg6 hxg6 11. Qe2 c5 12. Na2 Nc6 13. Nxb4 Nxb4 14. dxc5 Qc7 15. b3 Qxc5 16. Ba3 a5 17. Rac1 Qe7 18. Bb5 Rac8 19. Rc4 Nfd5 20. Rfc1 Rxc4 21. Qxc4 Rd8 22. e4 Nf4 23. Bxb4 Qxb4 24. Qxb4 axb4 25. g3 Nh3+ 26. Kg2 Ng5 27. Rc4 f5 28. exf5 gxf5 29. Rxb4 Kf7 30. Bc4 Rd7 31. Rb6 Re7 32. a5 Ne4 33. b4 Nf6 34. b5 Nd5 35. Bxd5 exd5 36. a6 bxa6 37. bxa6 d4 38. Rb7 1-0

[Event "AUS-ch U18"]
[Site "Canberra"]
[Date "2007.01.25"]
[Round "10"]
[White "Yu, Derek"]
[Black "Dyer, Alastair"]
[Result "1-0"]
[ECO "C40"]
[WhiteElo "1808"]
[BlackElo "1625"]
[PlyCount "31"]
[EventDate "2007.01.14"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 d6 5. Nc4 fxe4 6. Be2 d5 7. Ne3 Be6 8. c4 c6 9. Nc3 Qf7 10. cxd5 cxd5 11. 0-0 Bd6 12. f3 Qh5 13. g3 exf3 14. Bxf3 Qg5 15. Nf5 Qd8 16. Nxg7+ 1-0

[Event "AUS-ch U18"]
[Site "Canberra"]
[Date "2007.01.24"]
[Round "9"]
[White "Haselgrove, Miles"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "C96"]
[WhiteElo "1918"]
[BlackElo "1808"]
[PlyCount "71"]
[EventDate "2007.01.14"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[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. h3 Na5 9. c3 0-0 10. Bc2 c5 11. d4 Nd7 12. a4 Rb8 13. axb5 axb5 14. Nbd2 exd4 15. cxd4 Nc6 16. Nf1 Bf6 17. Be3 Qb6 18. e5 dxe5 19. dxc5 Qc7 20. Be4 b4 21. Rc1 Rd8 22. N3d2 Nd4 23. Bxd4 exd4 24. Qc2 g6 25. Nb3 Nf8 26. Red1 Ne6 27. Rd2 Bg7 28. Rcd1 f5 29. Bd3 Qc6 30. Bc4 Kh8 31. Bxe6 Qxe6 32. Nxd4 Qe4 33. Qxe4 fxe4 34. Nc6 Bxb2 35. Rxd8+ Kg7 36. Nxb8 1-0

[Event "AUS-ch U18"]
[Site "Canberra"]
[Date "2007.01.22"]
[Round "8"]
[White "Yu, Derek"]
[Black "Tse, Jeffrey"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "1808"]
[BlackElo "1730"]
[PlyCount "58"]
[EventDate "2007.01.14"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ Qxf6 6. Nf3 h6 7. Bd3 Bd6 8. 0-0 Nc6 9. c3 0-0 10. Qe2 e5 11. Qe4 g6 12. dxe5 Nxe5 13. Nxe5 Bxe5 14. Bxh6 Bf5 15. Qc4 b5 16. Qxb5 Bxh2+ 17. Kxh2 Qd6+ 18. Kg1 Rfb8 19. Qa5 Bxd3 20. Rfd1 Kh7 21. Be3 Rxb2 22. Qg5 Rab8 23. Qh6+ Kg8 24. Bd4 f6 25. Rxd3 Rb1+ 26. Rd1 Rxd1+ 27. Rxd1 Kf7 28. Qh7+ Ke6 29. Qxg6 Rh8 1-0

[Event "AUS-ch U18"]
[Site "Canberra"]
[Date "2007.01.21"]
[Round "7"]
[White "Vijayakumar, Rengan"]
[Black "Yu, Derek"]
[Result "1/2-1/2"]
[ECO "D12"]
[WhiteElo "1620"]
[BlackElo "1808"]
[PlyCount "31"]
[EventDate "2007.01.14"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. cxd5 cxd5 6. Nc3 e6 7. Ne5 Nbd7 8. g4 Bg6 9. h4 h6 10. Nxg6 fxg6 11. Bd3 Bb4 12. Bxg6+ Ke7 13. Bd2 e5 14. a3 Ba5 15. Qb3 Qb6 16. Qxb6 1/2-1/2

[Event "AUS-ch U18"]
[Site "Canberra"]
[Date "2007.01.20"]
[Round "6"]
[White "Yu, Derek"]
[Black "Beltrami, Matthew"]
[Result "1-0"]
[ECO "B19"]
[WhiteElo "1808"]
[BlackElo "1463"]
[PlyCount "59"]
[EventDate "2007.01.14"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bf4 Qa5+ 12. Bd2 Bb4 13. c3 Be7 14. Ne4 Ngf6 15. c4 Qf5 16. Nxf6+ Qxf6 17. 0-0-0 0-0-0 18. Rhe1 Bd6 19. Bc3 Qf4+ 20. Kb1 Qf5 21. Qxf5 exf5 22. d5 Bc5 23. dxc6 bxc6 24. Bxg7 Rh7 25. Bd4 Bf8 26. Nh4 c5 27. Bc3 Bg7 28. Bxg7 Rxg7 29. Nxf5 Rxg2 30. Nd6+ 1-0

[Event "AUS-ch U18"]
[Site "Canberra"]
[Date "2007.01.19"]
[Round "5"]
[White "Zulfic, Fedja"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "D32"]
[WhiteElo "1614"]
[BlackElo "1808"]
[PlyCount "69"]
[EventDate "2007.01.14"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c4 Nc6 5. Nc3 Bg4 6. dxc5 e6 7. cxd5 exd5 8. Be2 Bxc5 9. 0-0 0-0 10. b3 a6 11. Bb2 Qd6 12. h3 Bh5 13. Na4 Ba7 14. Bxf6 gxf6 15. Nc3 Rad8 16. g3 Kh8 17. Kh2 Rg8 18. Nh4 Bg6 19. Nxg6+ Rxg6 20. Bf3 d4 21. exd4 Nxd4 22. Rc1 Bb8 23. Rg1 Qb6 24. Nd5 Nxf3+ 25. Qxf3 Qe6 26. Rcd1 Rc8 27. Rge1 Qc6 28. Qe3 Bd6 29. Rc1 Qd7 30. Nb6 Qf5 31. Nxc8 Bf8 32. Qf4 Qb5 33. Ne7 Rg5 34. Qxf6+ Rg7 35. Rc8 1-0

[Event "AUS-ch U18"]
[Site "Canberra"]
[Date "2007.01.18"]
[Round "4"]
[White "Yu, Derek"]
[Black "Ford, Daniel"]
[Result "1-0"]
[ECO "B19"]
[WhiteElo "1808"]
[BlackElo "1452"]
[PlyCount "125"]
[EventDate "2007.01.14"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bf4 Qa5+ 12. Bd2 Qc7 13. 0-0-0 0-0-0 14. Ne4 Ngf6 15. g3 Nxe4 16. Qxe4 Nf6 17. Qe2 Bd6 18. c4 c5 19. Bc3 Rhe8 20. Kb1 Qc6 21. dxc5 Qxc5 22. Nd4 Qb6 23. Nb3 Qc6 24. Rhe1 Rd7 25. Qe3 Kb8 26. Bxf6 gxf6 27. Qxh6 f5 28. Qg7 Bb4 29. Qe5+ Ka8 30. Rxd7 Qxd7 31. Rc1 Qd3+ 32. Ka1 Bd6 33. Qg7 Qe2 34. Qxf7 Rb8 35. f4 Bb4 36. h6 Bd2 37. Nxd2 Qxd2 38. Rh1 Qg2 39. Qh5 Qc6 40. h7 Rh8 41. Qh6 Qd7 42. Qg6 Qc8 43. b3 Qd8 44. Qg7 a6 45. Qc3 Ka7 46. b4 Ka8 47. a4 Qe8 48. b5 axb5 49. axb5 b6 50. Qa3+ Kb8 51. Qd6+ Kb7 52. Rh6 Qa8+ 53. Kb2 Qa5 54. Kb3 Qe1 55. Qc6+ Ka7 56. Qc7+ Ka8 57. Qxb6 Qxg3+ 58. Ka4 Qxf4 59. Qc6+ Kb8 60. Rxe6 Qc1 61. Re8+ Rxe8 62. Qxe8+ Kc7 63. Qc6+ 1-0

[Event "AUS-ch U18"]
[Site "Canberra"]
[Date "2007.01.16"]
[Round "3"]
[White "Wei, Michael"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "D47"]
[WhiteElo "2120"]
[BlackElo "1808"]
[PlyCount "121"]
[EventDate "2007.01.14"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. e3 e6 5. Nc3 Nbd7 6. Bd3 dxc4 7. Bxc4 c5 8. d5 exd5 9. Nxd5 Nb6 10. Nxb6 Qxb6 11. Ne5 Be6 12. Qa4+ Nd7 13. Nxf7 Bxf7 14. Bxf7+ Kxf7 15. Qxd7+ Be7 16. Qf5+ Bf6 17. Qd5+ Ke7 18. Qe4+ Kf7 19. Qc4+ Ke7 20. 0-0 Rad8 21. Rb1 h5 22. b4 cxb4 23. Rxb4 Qc6 24. Ba3 Qxc4 25. Rxc4+ Ke6 26. Rc7 Rd7 27. Rxd7 Kxd7 28. Rc1 Rc8 29. Rxc8 Kxc8 30. Kf1 a5 31. Ke2 b5 32. Kd3 b4 33. Bc1 Kd7 34. Kc4 Kc6 35. f4 g6 36. e4 Be7 37. Be3 Bd6 38. e5 Be7 39. Bd4 a4 40. g3 Bf8 41. h3 Be7 42. g4 hxg4 43. hxg4 Bf8 44. f5 gxf5 45. gxf5 b3 46. axb3 axb3 47. Bb2 Be7 48. f6 Bf8 49. Kd4 Bc5+ 50. Ke4 Kd7 51. Kf5 Bf8 52. e6+ Ke8 53. Kg6 Bc5 54. f7+ Ke7 55. Kf5 Kf8 56. Bf6 b2 57. Bxb2 Be7 58. Bc1 Kg7 59. Bg5 Bc5 60. Bf6+ Kf8 61. Kg6 1-0

[Event "AUS-ch U18"]
[Site "Canberra"]
[Date "2007.01.15"]
[Round "2"]
[White "Yu, Derek"]
[Black "Gan, Zhong Haong"]
[Result "1-0"]
[ECO "C80"]
[WhiteElo "1808"]
[BlackElo "1482"]
[PlyCount "45"]
[EventDate "2007.01.14"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nbd2 Nc5 10. c3 Bg4 11. h3 Bh5 12. Re1 d4 13. e6 Be7 14. exf7+ Bxf7 15. Bxf7+ Kxf7 16. cxd4 Nxd4 17. Ne5+ Kg8 18. Ndf3 Nxf3+ 19. Qxf3 Bf6 20. Bg5 a5 21. Rad1 Qc8 22. Qd5+ Ne6 23. Nd7 1-0

[Event "AUS-ch U18"]
[Site "Canberra"]
[Date "2007.01.14"]
[Round "1"]
[White "McGlynn, Daniel"]
[Black "Yu, Derek"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "1056"]
[BlackElo "1808"]
[PlyCount "46"]
[EventDate "2007.01.14"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 dxc4 4. a4 e5 5. e3 exd4 6. Qxd4 Qxd4 7. exd4 Be6 8. Nf3 Na6 9. Bd2 Nf6 10. Ng5 Bd5 11. Rc1 Bd6 12. f3 0-0 13. Nge4 Rfe8 14. Kf2 Nxe4+ 15. Nxe4 Bxe4 16. fxe4 Rxe4 17. Rxc4 Rae8 18. Bd3 R4e6 19. Rcc1 Rf6+ 20. Kg1 Nb4 21. Bc4 Bf4 22. Re1 Rxe1+ 23. Bxe1 Be3+ 0-1

[Event "Olympiad U16 11th"]
[Site "Acri"]
[Date "2006.08.12"]
[Round "10"]
[White "Yu, Derek"]
[Black "Zherebukh, Yaroslav"]
[Result "0-1"]
[ECO "B52"]
[WhiteElo "1936"]
[BlackElo "2371"]
[PlyCount "62"]
[EventDate "2006.08.06"]
[EventType "team"]
[EventRounds "10"]
[EventCountry "TUR"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]
[WhiteTeam "Australia"]
[BlackTeam "Ukraine"]
[WhiteTeamCountry "AUS"]
[BlackTeamCountry "UKR"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Nc3 g6 9. Nde2 Bg7 10. f3 0-0 11. 0-0 Qd8 12. Be3 Nd7 13. f4 a6 14. a4 Rc8 15. b3 Nc5 16. f5 e6 17. Rb1 Qe7 18. Qd2 Na5 19. Bf4 Ncxb3 20. Qxd6 Qxd6 21. Bxd6 Rfd8 22. Be7 Rd7 23. f6 Nd2 24. Rfd1 Naxc4 25. Rbc1 Bh6 26. Nb1 Rc6 27. Nxd2 Nxd2 28. Rxc6 bxc6 29. Nc3 Rd3 30. Bb4 Be3+ 31. Kh1 Nxe4 0-1

[Event "Olympiad U16 11th"]
[Site "Acri"]
[Date "2006.08.11"]
[Round "9"]
[White "Naouali, Bechin"]
[Black "Yu, Derek"]
[Result "0-1"]
[ECO "C80"]
[BlackElo "1936"]
[PlyCount "56"]
[EventDate "2006.08.06"]
[EventType "team"]
[EventRounds "10"]
[EventCountry "TUR"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]
[WhiteTeam "Tunisia"]
[BlackTeam "Australia"]
[WhiteTeamCountry "TUN"]
[BlackTeamCountry "AUS"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. Re1 Nc5 7. Bxc6 dxc6 8. Nxe5 Be6 9. d4 Nd7 10. Qe2 Be7 11. Bf4 0-0 12. Nxf7 Bxf7 13. Qxe7 Qc8 14. Qh4 c5 15. dxc5 Nxc5 16. Nd2 Bg6 17. Rac1 b5 18. Be3 Na4 19. b3 Nc3 20. Bd4 Nxa2 21. Ra1 c5 22. Rxa2 cxd4 23. Qxd4 Rd8 24. Qb4 Re8 25. Rxe8+ Qxe8 26. Kf1 Rc8 27. Nf3 Bxc2 28. Qe1 Bd3+ 0-1

[Event "Olympiad U16 11th"]
[Site "Acri"]
[Date "2006.08.11"]
[Round "8"]
[White "Toth, Ervin"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "2317"]
[BlackElo "1936"]
[PlyCount "117"]
[EventDate "2006.08.06"]
[EventType "team"]
[EventRounds "10"]
[EventCountry "TUR"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]
[WhiteTeam "Hungary"]
[BlackTeam "Australia"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "AUS"]

1. d4 d5 2. c4 c6 3. Nc3 dxc4 4. e4 b5 5. a4 b4 6. Na2 Nf6 7. e5 Nd5 8. Bxc4 a5 9. Bg5 Qd7 10. Nf3 e6 11. 0-0 Ba6 12. Bxa6 Nxa6 13. Nc1 Be7 14. Nb3 Qd8 15. Bxe7 Nxe7 16. Rc1 0-0 17. Nc5 Qd5 18. Qd3 Nxc5 19. Rxc5 Qd7 20. Rfc1 Rfd8 21. g4 h6 22. R1c4 Rdc8 23. Qe4 Nd5 24. Rc1 Ra6 25. Kh1 Rd8 26. Rg1 Ne7 27. h4 Qe8 28. Qd3 Ra7 29. h5 Rd5 30. Rgc1 Qd8 31. Kg2 Rad7 32. R1c4 Qb6 33. Qc2 Rxc5 34. Rxc5 Rd5 35. Rc4 Rd8 36. Qe4 Rd5 37. Qe3 Qc7 38. b3 Nc8 39. Rc2 Rd8 40. Qe4 Ne7 41. Rc1 Nd5 42. g5 Nc3 43. Qg4 Kh7 44. Kh2 hxg5 45. Nxg5+ Kg8 46. Rg1 f5 47. Qh4 Qe7 48. h6 Ne4 49. h7+ Kh8 50. Nf7+ Qxf7 51. Qxd8+ Kxh7 52. Qh4+ Kg8 53. f3 Nd2 54. Qf4 Qh5+ 55. Kg2 Ne4 56. fxe4 Qe2+ 57. Kh3 Qh5+ 58. Kg3 g5 59. Kf2 1-0

[Event "Olympiad U16 11th"]
[Site "Acri"]
[Date "2006.08.10"]
[Round "6"]
[White "Premnath, Ramanathan"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "D19"]
[WhiteElo "2195"]
[BlackElo "1936"]
[PlyCount "47"]
[EventDate "2006.08.06"]
[EventType "team"]
[EventRounds "10"]
[EventCountry "TUR"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]
[WhiteTeam "India"]
[BlackTeam "Australia"]
[WhiteTeamCountry "IND"]
[BlackTeamCountry "AUS"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. 0-0 0-0 9. Qe2 Qa5 10. e4 Bg6 11. e5 Nd5 12. Nxd5 cxd5 13. Bd3 Nc6 14. h4 Be7 15. Bxg6 hxg6 16. Rd1 Rac8 17. Bg5 Rc7 18. Bxe7 Nxe7 19. Ng5 Nf5 20. h5 gxh5 21. Qxh5 Nh6 22. Ra3 Rc2 23. Rg3 Qa6 24. Ne4 1-0

[Event "Olympiad U16 11th"]
[Site "Acri"]
[Date "2006.08.08"]
[Round "4"]
[White "Orazov, Batyr"]
[Black "Yu, Derek"]
[Result "0-1"]
[ECO "A22"]
[BlackElo "1936"]
[PlyCount "126"]
[EventDate "2006.08.06"]
[EventType "team"]
[EventRounds "10"]
[EventCountry "TUR"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]
[WhiteTeam "Turkmenistan"]
[BlackTeam "Australia"]
[WhiteTeamCountry "TKM"]
[BlackTeamCountry "AUS"]

1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 4. Bg2 0-0 5. e3 Bxc3 6. bxc3 Re8 7. e4 d6 8. Ne2 Be6 9. d3 Nbd7 10. 0-0 Nc5 11. h3 Qd7 12. Kh2 Qa4 13. Qxa4 Nxa4 14. Ba3 Nc5 15. Rfd1 Bd7 16. f4 Ba4 17. Rd2 Nfd7 18. f5 g6 19. g4 Nf6 20. Bf3 Bc6 21. Ng3 Kh8 22. g5 Nfd7 23. f6 Ne6 24. h4 Nf4 25. Ne2 Nxe2 26. Bxe2 Nc5 27. h5 Ne6 28. Rg1 Rg8 29. h6 Rgd8 30. Kg3 Nxg5 31. Kh4 Ne6 32. Bd1 Nf4 33. Be2 b6 34. Rc2 Rg8 35. Bc1 g5+ 36. Rxg5 Rxg5 37. Kxg5 Rg8+ 38. Kh4 Rg6 39. Bxf4 exf4 40. Bg4 Rxh6+ 41. Kg5 Rg6+ 42. Kxf4 Rxf6+ 43. Ke3 Rg6 44. Bh5 Rg3+ 45. Kd2 Rg2+ 46. Be2 f5 47. exf5 Bf3 48. Ke3 Rxe2+ 49. Rxe2 Bxe2 50. Kxe2 Kg7 51. Kf3 Kf6 52. Kf4 c6 53. d4 d5 54. cxd5 cxd5 55. a3 b5 56. Kg4 h5+ 57. Kf4 a5 58. Kg3 Kxf5 59. Kf3 h4 60. Kf2 Ke4 61. Kg2 Kd3 62. Kh3 Kxc3 63. Kxh4 Kxd4 0-1

[Event "Olympiad U16 11th"]
[Site "Acri"]
[Date "2006.08.08"]
[Round "5"]
[White "Yu, Derek"]
[Black "Schiendorfer, Florian"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "1936"]
[BlackElo "2075"]
[PlyCount "43"]
[EventDate "2006.08.06"]
[EventType "team"]
[EventRounds "10"]
[EventCountry "TUR"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]
[WhiteTeam "Australia"]
[BlackTeam "Switzerland"]
[WhiteTeamCountry "AUS"]
[BlackTeamCountry "SUI"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 0-0 8. Bg5 Qc7 9. Bd3 Ng6 10. Ne2 Nc6 11. h4 c4 12. Bxg6 fxg6 13. h5 Qf7 14. Nf4 Qf5 15. Qg3 Bd7 16. hxg6 hxg6 17. 0-0-0 Nd8 18. Qh4 Ba4 19. Rd2 Qe4 20. f3 Qf5 21. g4 Qxf4 22. Qh7+ 1-0

[Event "Olympiad U16 11th"]
[Site "Acri"]
[Date "2006.08.06"]
[Round "1"]
[White "Yu, Derek"]
[Black "Bregadze, Levan"]
[Result "0-1"]
[ECO "B53"]
[WhiteElo "1936"]
[BlackElo "2289"]
[PlyCount "74"]
[EventDate "2006.08.06"]
[EventType "team"]
[EventRounds "10"]
[EventCountry "TUR"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]
[WhiteTeam "Australia"]
[BlackTeam "Georgia"]
[WhiteTeamCountry "AUS"]
[BlackTeamCountry "GEO"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. d4 cxd4 5. Qxd4 Qd7 6. Bxc6 Qxc6 7. Nc3 e5 8. Qd3 Be6 9. b3 Rc8 10. Bb2 h6 11. 0-0 Nf6 12. Rfd1 Be7 13. Rac1 0-0 14. Nb5 Qxe4 15. Nxd6 Bxd6 16. Qxd6 Rxc2 17. Qxe5 Rxf2 18. Qc3 Re2 19. Rd2 Rc8 20. Rxe2 Qxe2 21. Qd2 Rxc1+ 22. Bxc1 Qe4 23. Qd4 Qe2 24. Qd2 Qe5 25. Qe3 Qa5 26. Qd2 Qb6+ 27. Qe3 Qa6 28. Qf2 Bd5 29. Nd4 Qd3 30. Nf5 Kh7 31. Ne3 Be4 32. h3 Bg6 33. Bb2 Qb1+ 34. Nf1 Ne4 35. Qd4 Ng3 36. Qf2 Nxf1 37. Qxf1 Qxb2 0-1

[Event "AUS-ch U18"]
[Site "Brisbane"]
[Date "2006.01.09"]
[Round "11"]
[White "Chow, Justin"]
[Black "Yu, Derek"]
[Result "1/2-1/2"]
[ECO "C55"]
[PlyCount "67"]
[EventDate "2005.12.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. Bb3 d6 6. c3 0-0 7. Bc2 d5 8. Qe2 Bg4 9. h3 Bh5 10. g4 Bg6 11. h4 h5 12. g5 Nh7 13. Rg1 Re8 14. Nh2 Nf8 15. Qf3 dxe4 16. dxe4 Bc5 17. Nf1 Ne6 18. Ng3 Qd7 19. Nxh5 Ned4 20. Nf6+ gxf6 21. cxd4 Nxd4 22. Qd1 f5 23. Nc3 Nxc2+ 24. Qxc2 fxe4 25. Nxe4 Bxf2+ 26. Qxf2 Bxe4 27. h5 Rad8 28. Be3 Qf5 29. Qxf5 Bxf5 30. Ke2 a6 31. Rac1 c6 32. Rc3 Rd5 33. b3 Red8 34. Rcc1 1/2-1/2

[Event "AUS-ch U18"]
[Site "Brisbane"]
[Date "2006.01.07"]
[Round "10"]
[White "Yu, Derek"]
[Black "Vijayakumar, Rengan"]
[Result "1/2-1/2"]
[ECO "C80"]
[PlyCount "22"]
[EventDate "2005.12.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 exd4 7. Re1 d5 8. Nxd4 Bd6 9. Nxc6 Bxh2+ 10. Kxh2 Qh4+ 11. Kg1 Qxf2+ 1/2-1/2

[Event "AUS-ch U18"]
[Site "Brisbane"]
[Date "2006.01.06"]
[Round "9"]
[White "Liang, Bob"]
[Black "Yu, Derek"]
[Result "0-1"]
[ECO "C68"]
[PlyCount "52"]
[EventDate "2005.12.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nc3 Bg4 6. h3 Bh5 7. g4 Bg6 8. Nxe5 Bc5 9. Nxg6 hxg6 10. d3 Qh4 11. Rf1 Qxh3 12. Bf4 0-0-0 13. Qe2 Nf6 14. Rg1 Nxg4 15. 0-0-0 Nxf2 16. Rg3 Qh5 17. Qxh5 Rxh5 18. Rf1 Rh3 19. Kd2 Rdh8 20. Ke1 Rh1 21. Ne2 Nd1 22. Bc1 Bf2+ 23. Kxd1 Rxf1+ 24. Kd2 Bxg3 25. Nxg3 Rh2+ 26. Ne2 Rxe2+ 0-1

[Event "AUS-ch U18"]
[Site "Brisbane"]
[Date "2006.01.05"]
[Round "8"]
[White "Yu, Derek"]
[Black "Stojic, Dusan"]
[Result "0-1"]
[ECO "B28"]
[BlackElo "2033"]
[PlyCount "64"]
[EventDate "2005.12.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. c4 Nc6 4. d4 cxd4 5. Nxd4 e5 6. Nf5 d5 7. Qxd5 Bxf5 8. exf5 Qxd5 9. cxd5 Nd4 10. Bd3 Ne7 11. Nc3 Nexf5 12. 0-0 Bc5 13. Be3 Be7 14. Rae1 f6 15. f4 Nxe3 16. Rxe3 Bc5 17. Kh1 0-0-0 18. fxe5 Nc6 19. Rg3 Nxe5 20. Bf5+ Kb8 21. Rxg7 h5 22. Be6 Nd3 23. Ne4 Bd4 24. b3 f5 25. Ng5 Bxg7 26. Nf7 f4 27. Nxh8 Bxh8 28. Rf3 Nc5 29. Bf7 Be5 30. Kg1 h4 31. b4 Ne4 32. Rb3 Ng5 0-1

[Event "AUS-ch U18"]
[Site "Brisbane"]
[Date "2006.01.04"]
[Round "7"]
[White "Boyle, Gregory"]
[Black "Yu, Derek"]
[Result "0-1"]
[ECO "C58"]
[PlyCount "58"]
[EventDate "2005.12.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Ba4 h6 9. Nf3 e4 10. Ne5 Qd4 11. b4 Qxe5 12. c3 Bg4 13. Qc2 Bf5 14. Kd1 Ng4 15. Rf1 e3 16. d3 Bxd3 17. Qxd3 Rd8 18. Qxd8+ Kxd8 19. Bxe3 Nc4 20. Bd4 Qh5 21. Kc2 c5 22. bxc5 Bxc5 23. Rd1 Ke7 24. h3 Nxf2 25. Bxc5+ Qxc5 26. Re1+ Kf6 27. Nd2 Ne3+ 28. Kb2 Rb8+ 29. Bb3 Nfd1+ 0-1

[Event "AUS-ch U18"]
[Site "Brisbane"]
[Date "2006.01.03"]
[Round "6"]
[White "Yu, Derek"]
[Black "Papp, Alexander"]
[Result "1-0"]
[ECO "C02"]
[PlyCount "99"]
[EventDate "2005.12.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 d5 4. e5 Nc6 5. d4 Qb6 6. Be2 f6 7. 0-0 fxe5 8. Nxe5 Nxe5 9. dxe5 Ne7 10. Qb3 Qxb3 11. axb3 Nc6 12. f4 Be7 13. Na3 a6 14. Nb5 0-0 15. Nc7 Rb8 16. Bg4 Nd8 17. f5 exf5 18. Nxd5 Nc6 19. Bf3 Be6 20. Nxe7+ Nxe7 21. c4 Rfd8 22. Be3 Ng6 23. Bxc5 Nxe5 24. Rae1 Nd3 25. Rxe6 Nxc5 26. Re5 Nxb3 27. Rxf5 Nd2 28. Bd5+ Rxd5 29. Rxd5 Nxf1 30. Kxf1 Rc8 31. b3 Rc7 32. Ke2 Kf7 33. Ke3 Ke6 34. Ke4 Rd7 35. Rxd7 Kxd7 36. Kd5 b6 37. g4 h6 38. c5 bxc5 39. Kxc5 Kc7 40. h4 g6 41. h5 g5 42. Kd5 Kd7 43. Ke5 Ke7 44. Kf5 Kf7 45. b4 Kg7 46. Ke6 Kh7 47. Kf6 a5 48. bxa5 Kh8 49. a6 Kg8 50. Kg6 1-0

[Event "AUS-ch U18"]
[Site "Brisbane"]
[Date "2006.01.02"]
[Round "5"]
[White "Yu, Derek"]
[Black "Ford, Daniel"]
[Result "0-1"]
[ECO "C10"]
[PlyCount "174"]
[EventDate "2005.12.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bd7 5. Nf3 Bc6 6. Bd3 Nd7 7. 0-0 Bxe4 8. Bxe4 c6 9. c4 Ngf6 10. Bc2 Bd6 11. Re1 0-0 12. Ne5 c5 13. Nxd7 Qxd7 14. dxc5 Bxc5 15. Qxd7 Nxd7 16. Bf4 Nf6 17. h3 Rac8 18. b3 Rfd8 19. Rad1 Kf8 20. Rxd8+ Rxd8 21. Bg5 h6 22. Bc1 Ke7 23. Kf1 Nd7 24. Bb2 Nf6 25. Bc3 Kd7 26. b4 Bd6 27. c5 Bc7 28. b5 Ke7 29. a4 g6 30. Be5 Bxe5 31. Rxe5 Rd2 32. Re2 Rd5 33. b6 Rxc5 34. bxa7 Ra5 35. Re3 Rxa7 36. Rb3 Nd7 37. Rb5 Kd6 38. Ke2 Nc5 39. Rb4 Ra8 40. Rf4 f5 41. f3 Rd8 42. Rd4+ Kc7 43. Rxd8 Kxd8 44. g4 Ke7 45. Ke3 Kd6 46. f4 Kd5 47. g5 h5 48. h4 b6 49. Bd1 Kc4 50. Bc2 Kd5 51. Bd1 e5 52. fxe5 Kxe5 53. Bc2 Ne6 54. Bb3 f4+ 55. Kf2 Ng7 56. Bd1 Kf5 57. Kg2 Ke4 58. a5 bxa5 59. Kf2 f3 60. Ba4 Kf4 61. Bd7 Nf5 62. Bc6 Nxh4 63. Ba4 Kxg5 64. Kg3 f2 65. Kxf2 Kf4 66. Be8 Kg5 67. Kg3 Nf5+ 68. Kh3 Nd6 69. Bd7 Ne4 70. Bc6 Nf6 71. Kg3 Kf5 72. Kf3 g5 73. Ba4 g4+ 74. Kg2 Kf4 75. Bc2 h4 76. Bd1 Nd5 77. Bb3 Ne3+ 78. Kh2 Kf3 79. Kg1 g3 80. Ba4 h3 81. Bc6+ Kf4 82. Bd7 h2+ 83. Kh1 Kf3 84. Bc6+ Kf2 85. Bg2 a4 86. Bf3 a3 87. Bd5 a2 0-1

[Event "AUS-ch U18"]
[Site "Brisbane"]
[Date "2005.12.31"]
[Round "4"]
[White "Huang, Justin"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "C13"]
[WhiteElo "2010"]
[PlyCount "111"]
[EventDate "2005.12.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Nxf6+ Bxf6 7. Bxf6 Qxf6 8. Nf3 Nd7 9. Bd3 b6 10. Be4 Rb8 11. Qd3 Qe7 12. 0-0 Nf6 13. Bc6+ Bd7 14. Ne5 0-0 15. Bxd7 Nxd7 16. Nc6 Qd6 17. Nxb8 Nxb8 18. c3 Rd8 19. Qg3 Qd7 20. Rfe1 Nc6 21. Qf3 Qd5 22. Qxd5 Rxd5 23. Rad1 Kf8 24. c4 Rxd4 25. Rxd4 Nxd4 26. Rd1 e5 27. Re1 f6 28. f4 exf4 29. Kf2 Nc6 30. b3 Ne5 31. Ke2 g5 32. h3 h5 33. a4 Ke7 34. Rd1 g4 35. hxg4 hxg4 36. Rh1 f3+ 37. gxf3 Nxf3 38. Rh7+ Kd6 39. Ke3 a5 40. Rf7 Kc5 41. Rxc7+ Kb4 42. c5 bxc5 43. Rb7+ Kc3 44. Rb5 Ne5 45. Kf4 c4 46. bxc4 Nxc4 47. Kxg4 Na3 48. Rb8 Nc2 49. Kf5 Nb4 50. Rb5 Kb3 51. Rxa5 Kc4 52. Rb5 Nd5 53. Rb1 Kc5 54. a5 Nc7 55. Kxf6 Nb5 56. a6 1-0

[Event "AUS-ch U18"]
[Site "Brisbane"]
[Date "2005.12.30"]
[Round "3"]
[White "Muthusamy, Reubban"]
[Black "Yu, Derek"]
[Result "1/2-1/2"]
[ECO "C92"]
[PlyCount "95"]
[EventDate "2005.12.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[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 Re8 10. d4 Bf8 11. Ng5 Re7 12. f4 h6 13. Nxf7 Rxf7 14. dxe5 dxe5 15. Qxd8 Nxd8 16. fxe5 Bc5+ 17. Kh2 Nh7 18. Bxf7+ Nxf7 19. Bf4 g5 20. Bg3 h5 21. Kh1 Bb7 22. Nd2 Re8 23. e6 Nd6 24. Nb3 Bb6 25. Bxd6 cxd6 26. Nd4 Bxd4 27. cxd4 Rxe6 28. e5 dxe5 29. dxe5 Nf8 30. Rad1 Kf7 31. Rd8 Ng6 32. Rd7+ Re7 33. e6+ Kf8 34. Rxe7 Kxe7 35. Rc1 Kxe6 36. Rc7 Be4 37. Kh2 Nf4 38. Ra7 Bxg2 39. Rxa6+ Kd5 40. h4 gxh4 41. a4 bxa4 42. Rxa4 Be4 43. b4 Bc2 44. Ra8 Bd3 45. Rh8 Kc6 46. Rc8+ Kb7 47. Rd8 Be2 48. Rf8 1/2-1/2

[Event "AUS-ch U18"]
[Site "Brisbane"]
[Date "2005.12.29"]
[Round "2"]
[White "Yu, Derek"]
[Black "Vijayakumar, Rukman"]
[Result "1/2-1/2"]
[ECO "B01"]
[BlackElo "2019"]
[PlyCount "30"]
[EventDate "2005.12.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. Bb5+ Nbd7 5. f3 Bf5 6. c4 e6 7. dxe6 Bxe6 8. d5 Bf5 9. Nc3 Bb4 10. Nge2 0-0 11. 0-0 Nb6 12. b3 a6 13. Ba4 Qe7 14. a3 Bd6 15. Ne4 Bg6 1/2-1/2

[Event "AUS-ch U18"]
[Site "Brisbane"]
[Date "2005.12.28"]
[Round "1"]
[White "Griggs, James"]
[Black "Yu, Derek"]
[Result "0-1"]
[ECO "C58"]
[PlyCount "62"]
[EventDate "2005.12.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "AUS"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Ba4 Bc5 9. c3 h6 10. Nf3 e4 11. Ne5 Qb6 12. 0-0 Ba6 13. b4 Bxf1 14. bxa5 Qa6 15. Nxc6 Bb5 16. Nb4 Qxa5 17. Bxb5+ Qxb5 18. Na3 Qd7 19. Nc4 Ng4 20. d4 exd3 21. Nxd3 0-0-0 22. Qf3 Qxd3 23. Bf4 Qxf3 24. gxf3 Nxf2 25. Kg2 Rd1 26. Rxd1 Nxd1 27. Nd6+ Bxd6 28. Bxd6 Nxc3 29. Be5 Nxa2 30. Kf2 f6 31. Bd4 a5 0-1

[Event "Box Hill CC-ch"]
[Site "Box Hill"]
[Date "2005.06.11"]
[Round "1.11"]
[White "Yu, Derek"]
[Black "Lojanica, Milenko"]
[Result "0-1"]
[ECO "B28"]
[WhiteElo "1487"]
[BlackElo "2010"]
[PlyCount "58"]
[EventDate "2005.06.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "AUS"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. c3 e6 4. d4 cxd4 5. cxd4 Nf6 6. Bd3 b5 7. 0-0 Bb7 8. Bg5 Be7 9. Nbd2 0-0 10. Qc2 h6 11. Bh4 Nc6 12. a3 Rc8 13. Qb3 Qb6 14. Bxf6 Bxf6 15. d5 exd5 16. exd5 Nd4 17. Qa2 Nxf3+ 18. Nxf3 Qd6 19. Be4 Rfe8 20. Rfe1 Qf4 21. g3 Qg4 22. Nd2 Re5 23. f4 Ree8 24. Bf3 Qf5 25. Ne4 Bd4+ 26. Kg2 Bxd5 27. Nf6+ Qxf6 28. Qxd5 Bxb2 29. Qxd7 Red8 0-1

[Event "Victoria-ch U14/U16/U18"]
[Site "Box Hill"]
[Date "2005.05.01"]
[Round "8"]
[White "Yap, Alwyn"]
[Black "Yu, Derek"]
[Result "0-1"]
[ECO "C80"]
[WhiteElo "1247"]
[BlackElo "1405"]
[PlyCount "62"]
[EventDate "2005.05.05"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "AUS"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nbd2 Nc5 10. a4 bxa4 11. Bxa4 Nxa4 12. Rxa4 Be7 13. Nb3 0-0 14. Nbd4 Nxd4 15. Nxd4 Bd7 16. Ra1 c5 17. Nf3 Bf5 18. c3 Qd7 19. Bf4 Qe6 20. Qe2 Rfb8 21. Rfd1 Rb6 22. Rd2 Rab8 23. Rad1 Be4 24. Ne1 Bg6 25. Rxd5 Rxb2 26. Qxb2 Rxb2 27. Rd8+ Bf8 28. Rxf8+ Kxf8 29. Rd8+ Ke7 30. Bg5+ f6 31. exf6+ gxf6 0-1

[Event "Victoria-ch U14/U16/U18"]
[Site "Box Hill"]
[Date "2005.05.01"]
[Round "7"]
[White "Yu, Derek"]
[Black "Stojic, Dusan"]
[Result "0-1"]
[ECO "B52"]
[WhiteElo "1405"]
[BlackElo "1969"]
[PlyCount "74"]
[EventDate "2005.05.05"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "AUS"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nc6 6. d4 Qg4 7. 0-0 cxd4 8. Nxd4 Qxe4 9. Nb5 0-0-0 10. Qa4 a6 11. N1c3 Qe6 12. Be3 Nf6 13. Bb6 Rd7 14. Rfd1 Qg4 15. Rac1 e6 16. h3 Qf4 17. Rc2 Be7 18. Rcd2 g5 19. g3 Qe5 20. Re2 Qf5 21. g4 Qf4 22. Na7+ Nxa7 23. Bxa7 h5 24. Bd4 Qf3 25. Re3 Qc6 26. Qxc6+ bxc6 27. Bb6 hxg4 28. hxg4 c5 29. Rd2 Nxg4 30. Rg3 f5 31. Na4 Rb7 32. Re2 Ne5 33. Bxc5 g4 34. b3 Nf3+ 35. Rxf3 gxf3 36. Rxe6 dxc5 37. Rxa6 Kb8 0-1

[Event "Victoria-ch U14/U16/U18"]
[Site "Box Hill"]
[Date "2005.04.30"]
[Round "5"]
[White "Jia, Jing Qu"]
[Black "Yu, Derek"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "1769"]
[BlackElo "1405"]
[PlyCount "93"]
[EventDate "2005.05.05"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "AUS"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Bg4 3. Bb2 Nd7 4. d4 Bxf3 5. exf3 e6 6. Nd2 Bd6 7. c4 c6 8. Bd3 Ngf6 9. 0-0 Qc7 10. h3 b6 11. cxd5 Nxd5 12. Ne4 0-0 13. Nxd6 Qxd6 14. Rc1 Rac8 15. Qd2 Qf4 16. Rfd1 f5 17. Qxf4 Nxf4 18. Ba6 Rc7 19. Ba3 c5 20. dxc5 Nxc5 21. Bc4 Rcc8 22. Kh2 Rfd8 23. b4 Ncd3 24. Bxe6+ Nxe6 25. Rxd3 Rxd3 26. Rxc8+ Kf7 27. Bc1 Rd4 28. a3 Rd1 29. Rc2 Nd4 30. Rc7+ Kf6 31. Be3 Nb5 32. Rc6+ Rd6 33. Rxd6+ Nxd6 34. g4 Nc4 35. a4 a6 36. Bd4+ Kg6 37. Kg3 fxg4 38. fxg4 b5 39. a5 Nd6 40. f4 Kf7 41. f5 g6 42. fxg6+ Kxg6 43. Kf4 Nf7 44. h4 h5 45. g5 Nd8 46. Ke4 Ne6 47. Bc3 1-0

[Event "Victoria-ch U14/U16/U18"]
[Site "Box Hill"]
[Date "2005.04.30"]
[Round "6"]
[White "Yu, Derek"]
[Black "Glenton, Alan"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "1405"]
[BlackElo "1312"]
[PlyCount "103"]
[EventDate "2005.05.05"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "AUS"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Nd5 Nxd5 8. exd5 Nb8 9. c4 f5 10. Bd3 g6 11. Bd2 Nd7 12. Bxf5 a6 13. Nc3 Bg7 14. Bc2 Qh4 15. Ne4 Qe7 16. Bb4 Nc5 17. Bxc5 dxc5 18. d6 Qd8 19. Ba4+ Bd7 20. Bxd7+ Qxd7 21. Nxc5 Qc6 22. Ne6 Qxg2 23. Nxg7+ Kf7 24. Qd5+ Qxd5 25. cxd5 Kxg7 26. Rc1 Rac8 27. Rc7+ Kf6 28. Kd2 Rxc7 29. dxc7 Rc8 30. Rc1 e4 31. Ke3 Ke5 32. d6 Kxd6 33. Kxe4 Rxc7 34. Rxc7 Kxc7 35. Ke5 Kd7 36. Kf6 Ke8 37. Kg7 Ke7 38. Kxh7 Kf7 39. Kh6 Kf6 40. h4 b5 41. b4 Kf7 42. Kg5 Kg7 43. f4 Kf7 44. f5 gxf5 45. Kxf5 Kg7 46. Ke6 Kg6 47. Kd6 Kh5 48. Kc6 Kxh4 49. Kb6 Kg5 50. Kxa6 Kf6 51. Kxb5 Ke7 52. Kc6 1-0

[Event "Box Hill Victorian-ch U20"]
[Site "Box Hill"]
[Date "2005.04.24"]
[Round "3"]
[White "Potter, Daniel"]
[Black "Yu, Derek"]
[Result "0-1"]
[ECO "D06"]
[WhiteElo "1152"]
[BlackElo "1405"]
[PlyCount "102"]
[EventDate "2005.04.23"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "AUS"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. c4 d5 2. cxd5 Nf6 3. Nf3 Nxd5 4. d4 Bg4 5. e4 Nf6 6. e5 Nd5 7. Be2 e6 8. 0-0 Nd7 9. Nbd2 Bf5 10. Bc4 N7b6 11. b3 Nc3 12. Qe1 Bb4 13. a3 Be7 14. Bb2 Nxc4 15. Nxc4 Nd5 16. Qd2 0-0 17. Rfe1 c6 18. Ne3 Nxe3 19. Qxe3 Qb6 20. b4 h6 21. Qc3 Qb5 22. Nd2 Qd3 23. Qxd3 Bxd3 24. Ne4 Bxe4 25. Rxe4 Rad8 26. Rc1 Rd5 27. g3 Rb5 28. Bc3 a5 29. Rb1 axb4 30. Bxb4 Bxb4 31. axb4 Ra8 32. Re2 Ra3 33. Re3 Ra2 34. Rd3 Rc2 35. Kf1 Rc4 36. Ke2 Rbxb4 37. Rxb4 Rxb4 38. h4 Kf8 39. f4 f5 40. Kd2 Rc4 41. Ke3 Ke7 42. Ra3 Kf7 43. Ra7 Rb4 44. Ke2 Kg6 45. Ra8 Rxd4 46. Rb8 Rd7 47. Kf3 Rc7 48. Rd8 c5 49. Rd6 Rc6 50. Rd7 b5 51. Rb7 b4 0-1

[Event "Box Hill Victorian-ch U20"]
[Site "Box Hill"]
[Date "2005.04.24"]
[Round "4"]
[White "Yu, Derek"]
[Black "Tang, Jason"]
[Result "1-0"]
[ECO "C11"]
[WhiteElo "1405"]
[BlackElo "1279"]
[PlyCount "37"]
[EventDate "2005.04.23"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "AUS"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Be3 Nc6 7. Nf3 cxd4 8. Nxd4 Bb4 9. a3 Bxc3+ 10. bxc3 0-0 11. Bd3 f6 12. Nxe6 Qa5 13. Nxf8 Nxf8 14. 0-0 fxe5 15. fxe5 Qxc3 16. Qh5 Be6 17. Bg5 Qxe5 18. Rxf8+ Rxf8 19. Bxh7+ 1-0

[Event "Box Hill Victorian-ch U20"]
[Site "Box Hill"]
[Date "2005.04.23"]
[Round "1"]
[White "Lau, Aaron"]
[Black "Yu, Derek"]
[Result "0-1"]
[ECO "C47"]
[WhiteElo "354"]
[BlackElo "1405"]
[PlyCount "36"]
[EventDate "2005.04.23"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "AUS"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. d3 Nc6 3. Nc3 Nf6 4. Nf3 d5 5. d4 dxe4 6. Nxe5 Qxd4 7. Bf4 Bc5 8. Qxd4 Nxd4 9. Rc1 0-0 10. Bc4 c6 11. 0-0 b5 12. Bxf7+ Rxf7 13. Nxf7 Kxf7 14. Be5 b4 15. Na4 Ne2+ 16. Kh1 Nxc1 17. Rxc1 Bxf2 18. Rf1 e3 0-1

[Event "Box Hill Victorian-ch U20"]
[Site "Box Hill"]
[Date "2005.04.23"]
[Round "2"]
[White "Yu, Derek"]
[Black "Wallis, Christopher"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1405"]
[BlackElo "1950"]
[PlyCount "90"]
[EventDate "2005.04.23"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "AUS"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Bd3 Bd6 6. 0-0 0-0 7. Re1 Bg4 8. h3 Bh5 9. Bg5 Nbd7 10. Nbd2 c6 11. c3 Qc7 12. Qc2 Bg6 13. Bxf6 Nxf6 14. Ne5 Bxd3 15. Qxd3 Rae8 16. f4 Nd7 17. g3 f6 18. Nxd7 Qxd7 19. Kg2 Rxe1 20. Rxe1 Re8 21. Rxe8+ Qxe8 22. h4 Qe1 23. Nb3 g6 24. a3 b6 25. c4 Qe6 26. c5 Bf8 27. Kf2 Qh3 28. Qf1 Qf5 29. Qe2 Kf7 30. a4 Qb1 31. a5 b5 32. Qd2 a6 33. Nc1 Qe4 34. Na2 Qh1 35. Qc3 Qh2+ 36. Ke1 Qg1+ 37. Kd2 Qf2+ 38. Kc1 Qf1+ 39. Kc2 Qe2+ 40. Kb3 Qd1+ 41. Qc2 Qxd4 42. Nb4 Bxc5 43. Nxa6 Qa4+ 44. Kc3 Qc4+ 45. Kd2 Be3+ 0-1

