[Event "VIE-chT Super (Women)"]
[Site "Hanoi"]
[Date "2004.02.15"]
[Round "2"]
[White "Le, Thanh Huyen"]
[Black "Nguyen, Kieu Trinh"]
[Result "1-0"]
[ECO "D55"]
[PlyCount "28"]
[EventDate "2004.02.14"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "VIE"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 0-0 6. e3 b6 7. Be2 Bb7 8. 0-0 c5 9. dxc5 bxc5 10. Qb3 Bc6 11. Rfd1 Nbd7 12. Bxf6 Nxf6 13. Ne5 Qc7 14. Nxc6 dxc4 1-0

[Event "VIE-chT Super (Women)"]
[Site "Hanoi"]
[Date "2004.02.14"]
[Round "1"]
[White "Vu, Phuong Thao"]
[Black "Nguyen, Kieu Trinh"]
[Result "1-0"]
[ECO "D37"]
[PlyCount "52"]
[EventDate "2004.02.14"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "VIE"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bf4 c6 6. e3 0-0 7. a3 dxc4 8. Bxc4 Nbd7 9. 0-0 Nb6 10. Ba2 Bd7 11. Rc1 Rc8 12. Ne5 Nbd5 13. Bg3 Nxc3 14. Rxc3 Ne4 15. Rc1 Kh8 16. Bb1 Nf6 17. f4 c5 18. dxc5 Bxc5 19. Bf2 Qe7 20. Qf3 Ba4 21. Qh3 h6 22. Bh4 Qd8 23. Ng4 Bxe3+ 24. Nxe3 Rxc1 25. Rxc1 Bb5 26. Rd1 Be2 1-0

[Event "VIE-chT (Women)"]
[Site "Can Tho"]
[Date "2003.08.28"]
[Round "9"]
[White "Do, Thi Thuong"]
[Black "Nguyen, Kieu Trinh"]
[Result "1/2-1/2"]
[ECO "D00"]
[PlyCount "58"]
[EventDate "2003.08.20"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 d5 3. Bg2 c5 4. e3 cxd4 5. exd4 Nc6 6. Ne2 Bf5 7. c3 e6 8. 0-0 Be7 9. Nd2 h5 10. Nf3 Ne4 11. h3 g5 12. Ne5 Qc7 13. f3 Nd6 14. g4 hxg4 15. fxg4 Bh7 16. Nxc6 bxc6 17. Ng3 Bg6 18. b3 Rh7 19. Qe1 Kd7 20. Ba3 Rah8 21. Bxd6 Bxd6 22. Rf3 Bf4 23. c4 f5 24. cxd5 cxd5 25. gxf5 exf5 26. Rc3 Qd6 27. Qf2 g4 28. hxg4 fxg4 29. Qe2 Bxg3 1/2-1/2

[Event "VIE-chT (Women)"]
[Site "Can Tho"]
[Date "2003.08.26"]
[Round "8"]
[White "Nguyen, Kieu Trinh"]
[Black "Bui, Phuong Thao"]
[Result "1/2-1/2"]
[ECO "D63"]
[PlyCount "66"]
[EventDate "2003.08.20"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 0-0 6. Nf3 h6 7. Bh4 b6 8. cxd5 exd5 9. Be2 Bb7 10. 0-0 Nbd7 11. a3 Ne4 12. Bxe7 Qxe7 13. Rc1 Ndf6 14. b4 c5 15. bxc5 bxc5 16. dxc5 Nxc5 17. Nd4 Rad8 18. Ncb5 g6 19. h4 a6 20. Nc3 h5 21. Nf3 Nfe4 22. g3 Rc8 23. Nd4 Nxc3 24. Rxc3 Ne4 25. Rb3 Nc3 26. Qd2 Nxe2+ 27. Qxe2 Rc4 28. Qb2 Bc8 29. Kh2 Qc7 30. Rb6 Re8 31. Rb1 Re4 32. Kg2 Qd7 33. Rh1 Qc7 1/2-1/2

[Event "VIE-chT (Women)"]
[Site "Can Tho"]
[Date "2003.08.26"]
[Round "7"]
[White "Nguyen T Thu, Huyen"]
[Black "Nguyen, Kieu Trinh"]
[Result "1-0"]
[ECO "D36"]
[PlyCount "68"]
[EventDate "2003.08.20"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nc3 e6 4. cxd5 exd5 5. Nf3 Be7 6. Bg5 Nbd7 7. e3 c6 8. Bd3 0-0 9. 0-0 Re8 10. Qc2 Ne4 11. Bxe4 Bxg5 12. Bxh7+ Kf8 13. Bf5 Bh6 14. Ne2 Nf6 15. Bxc8 Qxc8 16. Ng3 Ne4 17. Rfe1 Nxg3 18. hxg3 Re4 19. Qb3 Re7 20. Ne5 Qf5 21. Rac1 g6 22. Qc2 Qg5 23. Qc5 Bg7 24. Nf3 Qf5 25. Rc3 Bf6 26. Rb3 Kg7 27. Kf1 Qh5 28. Ke2 g5 29. Qc2 g4 30. Nh4 Bxh4 31. Rh1 Rh8 32. Rxh4 Qg5 33. Rxh8 Kxh8 34. Qc5 Qf5 1-0

[Event "VIE-chT (Women)"]
[Site "Can Tho"]
[Date "2003.08.25"]
[Round "6"]
[White "Nguyen, Kieu Trinh"]
[Black "Le, Nguyen Da Hien"]
[Result "1/2-1/2"]
[ECO "D12"]
[PlyCount "58"]
[EventDate "2003.08.20"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. e3 Nf6 4. Nf3 Bf5 5. Nc3 e6 6. Qb3 Qb6 7. Nh4 Be4 8. f3 Bg6 9. Nxg6 hxg6 10. Bd2 Nbd7 11. 0-0-0 Bd6 12. h3 Qc7 13. cxd5 Nxd5 14. e4 N5b6 15. h4 0-0 16. e5 Be7 17. Kb1 c5 18. Rc1 Rac8 19. dxc5 Nxc5 20. Qc2 Qc6 21. Be3 a6 22. f4 Nd5 23. Nxd5 Qxd5 24. h5 gxh5 25. Rxh5 Qe4 26. Rh3 Qxc2+ 27. Rxc2 Rfd8 28. Be2 Nd7 29. Rxc8 Rxc8 1/2-1/2

[Event "VIE-chT (Women)"]
[Site "Can Tho"]
[Date "2003.08.24"]
[Round "5"]
[White "Dinh, Thu Phuong"]
[Black "Nguyen, Kieu Trinh"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "56"]
[EventDate "2003.08.20"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. g3 d5 2. d4 Nf6 3. Bg2 b6 4. Nf3 Bb7 5. 0-0 e6 6. b3 c5 7. Bb2 Be7 8. Nbd2 Nc6 9. c4 0-0 10. Qc2 cxd4 11. Nxd4 Nxd4 12. Bxd4 Qc7 13. Rac1 e5 14. cxd5 Qxc2 15. Rxc2 exd4 16. Rc7 Bb4 17. Rxb7 Bxd2 18. Rd1 Bc3 19. Rd3 Rad8 20. Rxa7 Nxd5 21. a3 f5 22. e3 Nf6 23. exd4 Bxd4 24. Rf3 Ne4 25. Bf1 Nd2 26. Bc4+ Kh8 27. Kg2 Nxf3 28. Kxf3 b5 0-1

[Event "VIE-chT (Women)"]
[Site "Can Tho"]
[Date "2003.08.23"]
[Round "4"]
[White "Nguyen, Kieu Trinh"]
[Black "Nguyen Thi Diem, Trang"]
[Result "1/2-1/2"]
[ECO "C42"]
[PlyCount "112"]
[EventDate "2003.08.20"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d3 Nf6 6. Bg5 Be7 7. Nbd2 0-0 8. Be2 h6 9. Bh4 Nc6 10. 0-0 Bf5 11. Nb3 Qd7 12. Nfd4 Nxd4 13. Nxd4 Bg6 14. c3 Rfe8 15. Bf3 c6 16. Re1 d5 17. Bg3 Bd6 18. Qd2 Bxg3 19. hxg3 Ng4 20. Re2 Ne5 21. Re3 Nxf3+ 22. Nxf3 Rxe3 23. Qxe3 Qf5 24. Rd1 Bh5 25. Re1 Bxf3 26. gxf3 b6 27. Kg2 Rd8 28. d4 Rd6 29. Qe8+ Kh7 30. Re5 Qd7 31. Qe7 Kg6 32. f4 Qxe7 33. Rxe7 a5 34. Rb7 b5 35. a4 bxa4 36. Ra7 Rf6 37. Rxa5 Kf5 38. Kf3 h5 39. Rxa4 g5 40. fxg5 Kxg5+ 41. Kg2 h4 42. gxh4+ Kxh4 43. Ra7 Kg4 44. Re7 Kf4 45. Re3 Rg6+ 46. Kf1 f5 47. Ke2 Rh6 48. b3 Kg4 49. Rg3+ Kf4 50. c4 dxc4 51. bxc4 Ke4 52. Rd3 Rd6 53. f3+ Kf4 54. Kd2 Kg3 55. d5 cxd5 56. Rxd5 Rc6 1/2-1/2

[Event "VIE-chT (Women)"]
[Site "Can Tho"]
[Date "2003.08.22"]
[Round "3"]
[White "Le, Phan Quynh"]
[Black "Nguyen, Kieu Trinh"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "88"]
[EventDate "2003.08.20"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. g3 Bf5 4. Bg2 e6 5. 0-0 Nbd7 6. Nbd2 Be7 7. c4 0-0 8. b3 h6 9. Bb2 Ne4 10. Nxe4 Bxe4 11. Nd2 Bxg2 12. Kxg2 c6 13. Rc1 g5 14. e4 f5 15. exf5 exf5 16. Qe2 Rf6 17. Rce1 Bd6 18. f3 Kf7 19. Rf2 Qe8 20. Qd1 Re6 21. Rfe2 Rxe2+ 22. Rxe2 Qf8 23. Qe1 Re8 24. Rxe8 Qxe8 25. Qxe8+ Kxe8 26. cxd5 cxd5 27. Bc3 Ke7 28. Nb1 g4 29. fxg4 fxg4 30. Nd2 Ke6 31. Nf1 h5 32. Ne3 Ba3 33. Bd2 Bb2 34. Nc2 Kf5 35. Kf2 Ke4 36. Be3 Nf8 37. Ke2 Ne6 38. Bg1 Nxd4+ 39. Bxd4 Bxd4 40. Kf1 Bc3 41. Na3 d4 42. Nb5 a6 43. Nd6+ Kf3 44. Nxb7 d3 0-1

[Event "VIE-chT (Women)"]
[Site "Can Tho"]
[Date "2003.08.21"]
[Round "2"]
[White "Nguyen, Kieu Trinh"]
[Black "Bui Thi My, Hang"]
[Result "1/2-1/2"]
[ECO "B73"]
[PlyCount "81"]
[EventDate "2003.08.20"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. 0-0 0-0 8. Be3 Nc6 9. Kh1 Bd7 10. f4 Qc8 11. Bf3 a6 12. Rc1 Bg4 13. Nd5 Nxd5 14. exd5 Bxf3 15. Rxf3 Nb4 16. c4 Nxa2 17. Ra1 Nb4 18. Ra4 a5 19. b3 b6 20. f5 Qb7 21. fxg6 fxg6 22. Ne6 Rxf3 23. Qxf3 b5 24. cxb5 Qxd5 25. Qxd5 Nxd5 26. Bd2 Bc3 27. Bxc3 Nxc3 28. Nc7 Rf8 29. Ra1 Rc8 30. b6 Rb8 31. Rc1 Na2 32. Re1 Rxb6 33. Rxe7 Rxb3 34. h3 a4 35. Ne6 a3 36. Rg7+ Kh8 37. Rf7 h5 38. Rf8+ Kh7 39. Rf7+ Kh6 40. h4 Rb4 41. g3 1/2-1/2

[Event "VIE-chT (Women)"]
[Site "Can Tho"]
[Date "2003.08.20"]
[Round "1"]
[White "Ton Nu Hong, An"]
[Black "Nguyen, Kieu Trinh"]
[Result "1-0"]
[ECO "B54"]
[PlyCount "82"]
[EventDate "2003.08.20"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d6 5. Bb5 Qc7 6. c4 Nf6 7. Nc3 Bd7 8. 0-0 g6 9. Bg5 Bg7 10. Bxf6 exf6 11. Nd5 Qd8 12. f4 f5 13. Bxc6 bxc6 14. Nc3 fxe4 15. Kh1 f5 16. Qd2 0-0 17. Rad1 Qc7 18. b4 Rad8 19. a4 a6 20. b5 cxb5 21. cxb5 axb5 22. axb5 Qc4 23. Rfe1 Bxd4 24. Qxd4 Bxb5 25. Qd5+ Qxd5 26. Nxd5 Bc4 27. Ne7+ Kf7 28. Nc6 Bb3 29. Nxd8+ Rxd8 30. Rb1 Be6 31. Rb7+ Rd7 32. Reb1 d5 33. Kg1 d4 34. Kf1 Bc4+ 35. Ke1 Be6 36. Kd2 g5 37. fxg5 f4 38. Rxd7+ Bxd7 39. Rf1 e3+ 40. Ke1 Ke6 41. Rxf4 Ke5 1-0

[Event "VIE-chT (Women)"]
[Site "Thua Thien Hue"]
[Date "2001.??.??"]
[Round "3"]
[White "Luong, Nhat Linh"]
[Black "Nguyen, Kieu Trinh"]
[Result "1-0"]
[ECO "C46"]
[PlyCount "91"]
[EventDate "2001.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "VIE"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 d6 4. d4 exd4 5. Nxd4 Bd7 6. Nxc6 Bxc6 7. Bd3 Nf6 8. 0-0 Be7 9. Re1 Qd7 10. Bf4 0-0-0 11. b4 Qg4 12. Qd2 g5 13. Be3 Qh5 14. Nd5 Bxd5 15. exd5 Ng4 16. Bf5+ Kb8 17. Bxa7+ Kxa7 18. Qd4+ Kb8 19. Bxg4 Bf6 20. Qc4 Qg6 21. Rab1 Be5 22. b5 f5 23. Be2 Qh6 24. g3 Qg7 25. a4 Bc3 26. Red1 Ba5 27. Rb3 h5 28. Bf3 g4 29. Bg2 h4 30. Qf4 hxg3 31. hxg3 Qf6 32. Re3 Rde8 33. Rxe8+ Rxe8 34. c4 Bb6 35. Qd2 Bc5 36. a5 Ka7 37. Rb1 b6 38. axb6+ cxb6 39. Qa2+ Kb7 40. Qa6+ Kc7 41. Qa7+ Kd8 42. Ra1 Bxf2+ 43. Kf1 Qd4 44. Qb8+ Ke7 45. Ra7+ Kf8 46. Qxd6+ 1-0

[Event "VIE-chT (Women)"]
[Site "Thua Thien Hue"]
[Date "2001.??.??"]
[Round "2"]
[White "Nguyen, Kieu Trinh"]
[Black "Nguyen, Thi My"]
[Result "1/2-1/2"]
[ECO "D20"]
[PlyCount "112"]
[EventDate "2001.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "VIE"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nc3 Nf6 4. e4 e5 5. d5 c6 6. Bxc4 b5 7. Nxb5 cxb5 8. Bxb5+ Bd7 9. Bd3 Bb4+ 10. Bd2 Qa5 11. a3 Bxd2+ 12. Qxd2 Qxd2+ 13. Kxd2 0-0 14. Rc1 a6 15. Nf3 Re8 16. Rc7 Bb5 17. Rhc1 Nbd7 18. h3 h6 19. Ke3 Bxd3 20. Kxd3 Rab8 21. b4 a5 22. Rb1 axb4 23. axb4 Nb6 24. Nd2 Rec8 25. Rc5 Kf8 26. Nb3 Ke7 27. Na5 Ra8 28. Nc6+ Kd6 29. Ra5 Rxa5 30. bxa5 Nbd7 31. f3 Nc5+ 32. Kc4 Nfd7 33. Ra1 Na6 34. Kb5 Nc7+ 35. Kc4 Ra8 36. Nb4 Nc5 37. Nc6 N5a6 38. Rb1 f5 39. Rb6 fxe4 40. fxe4 h5 41. Nd4+ Kd7 42. Nf5 Ne8 43. Re6 Rc8+ 44. Rc6 Rxc6+ 45. dxc6+ Kxc6 46. Ne7+ Kd7 47. Ng6 Kd6 48. Kb5 Nc5 49. Nh4 Nxe4 50. Kb6 Nc5 51. Nf5+ Kd5 52. Ne3+ Kd4 53. Nc2+ Kd5 54. Ne3+ Kd4 55. Nc2+ Kc4 56. Ne3+ Kd4 1/2-1/2

[Event "VIE-chT (Women)"]
[Site "Thua Thien Hue"]
[Date "2001.??.??"]
[Round "11"]
[White "Nguyen Phu Ngoc, Thien"]
[Black "Nguyen, Kieu Trinh"]
[Result "1-0"]
[ECO "B01"]
[PlyCount "47"]
[EventDate "2001.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "VIE"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 c6 5. Nf3 Bg4 6. h3 Bh5 7. Bc4 e6 8. Bd2 Qd8 9. g4 Bg6 10. Bb3 Nf6 11. Qe2 Nbd7 12. 0-0-0 Qc7 13. Ne5 0-0-0 14. h4 Nxe5 15. dxe5 Nxg4 16. Qxg4 Qxe5 17. Bf4 Qf5 18. Rxd8+ Kxd8 19. Rd1+ Kc8 20. Qg3 f6 21. Bb8 e5 22. Bxa7 Bb4 23. Bb6 Re8 24. a3 1-0

[Event "VIE-chT (Women)"]
[Site "Thua Thien Hue"]
[Date "2001.??.??"]
[Round "1"]
[White "Truong, Anh Thu"]
[Black "Nguyen, Kieu Trinh"]
[Result "1/2-1/2"]
[ECO "B01"]
[PlyCount "88"]
[EventDate "2001.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "VIE"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 c6 5. Nf3 Bg4 6. h3 Bh5 7. Be2 e6 8. 0-0 Nf6 9. Ne5 Bxe2 10. Qxe2 Bd6 11. Nc4 Qc7 12. Bg5 Nbd7 13. Ne4 Nxe4 14. Qxe4 h6 15. Nxd6+ Qxd6 16. Bf4 Qd5 17. Qe3 0-0-0 18. c3 g5 19. Bh2 f5 20. f4 g4 21. hxg4 Rdg8 22. g5 Rg6 23. Qf3 Qxf3 24. Rxf3 hxg5 25. fxg5 Rxg5 26. Bf4 Rg6 27. Re1 Rhg8 28. Re2 Nb6 29. Bd6 Nd5 30. Be5 Rh6 31. c4 Nf6 32. Bxf6 Rxf6 33. Rfe3 Kd7 34. Re5 Kd6 35. b3 Rg7 36. Kf1 Rfg6 37. d5 exd5 38. cxd5 cxd5 39. Rxf5 Kc5 40. Rc2+ Kd4 41. Rd2+ Ke4 42. Rfxd5 Rxg2 43. R5d4+ Ke5 44. Rd5+ Ke4 1/2-1/2

