[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.07"]
[Round "1.1"]
[White "Pons, Jean-Marc"]
[Black "David, Vincent"]
[Result "0-1"]
[ECO "E03"]
[WhiteElo "1940"]
[BlackElo "2392"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "84"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 c5 7. O-O b6 8.
Nc3 (8. d4 Bb7 9. Rd1 cxd4 10. Bg5 Be7 11. Nxd4 Bxg2 12. Kxg2 Qc8 13. Nd2 h6
14. Bxf6 Bxf6 15. Rac1 Qb7+ 16. N2f3 O-O 17. Qc6 Qxc6 18. Nxc6 Nc5 19. b4 Rfc8
20. Nfd4 e5 21. Nb3 Rxc6 $11 {1/2-1/2 Aronian,L (2782)-Gelfand,B (2750)/Nice
2010/CBM 135 Extra (34)}) 8... Bb7 9. d4 Rc8 10. Bg5 a6 (10... cxd4) 11. a4 h6
12. Bxf6 Nxf6 13. Rad1 Qc7 14. Nh4 Bxg2 15. Nxg2 cxd4 16. Qxc7 Rxc7 17. Rxd4
Bc5 18. Rd3 Ke7 19. h3 Rhc8 20. Ne3 Ke8 21. Kg2 Bxe3 22. Rxe3 Rd7 23. Rd3 Rxd3
24. exd3 Kd7 25. Kf3 Nd5 26. Rc1 Nxc3 27. bxc3 Rc5 28. c4 Ra5 29. Ra1 b5 30.
cxb5 axb5 31. Ke3 Kd6 32. Rb1 bxa4 33. Kd4 a3 34. Ra1 a2 35. Kc3 g5 36. Kb4 Ra7
37. Kc3 Kd5 38. Kd2 Kd4 39. Kc2 h5 40. Kd2 Ra3 41. Kc2 Rc3+ 42. Kb2 Rxd3 0-1

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.07"]
[Round "1.2"]
[White "Breahna, Radu"]
[Black "Benard, Anne-Laurie"]
[Result "1-0"]
[ECO "E33"]
[WhiteElo "2278"]
[BlackElo "1927"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "81"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 O-O 6. a3 Bxc3+ 7. Qxc3 Ne4 8.
Qc2 f5 9. e3 b6 $6 (9... d5 10. b4 Bd7 11. Bd3 Be8 12. Bb2 a6 13. Ne5 Nd6 14.
O-O-O Qe7 15. cxd5 exd5 16. g4 a5 17. b5 Nxe5 18. dxe5 Nxb5 19. gxf5 Qh4 20.
Rhg1 Ra6 21. e6 Rf6 22. Bxb5 Bxb5 23. Rxd5 h6 24. Rxg7+ Kxg7 25. Qxc7+ Kf8 26.
Rd8+ Be8 27. Rxe8+ Kxe8 28. Qd7+ {1-0 Cruz,C (2508)-Herrera,I (2458)/Sabadell
2008/CBM 126}) 10. Bd3 Bb7 11. O-O Ng5 12. Nxg5 Qxg5 13. f4 Qg4 14. b4 a5 15.
b5 Ne7 16. Bb2 Ng6 17. Rf2 Nh4 18. Qe2 (18. d5 $1 Rae8 19. Be2 Qg6 20. g3 exd5
21. Bd4 $16) 18... Qxe2 19. Rxe2 Rf6 $2 (19... Be4 $11) 20. d5 Rf7 21. Rc1 Rc8
22. dxe6 dxe6 23. c5 bxc5 24. Rxc5 $16 Rd8 25. Bd4 Bd5 26. Rec2 Rdd7 27. Bc4
Ng6 28. Bxd5 exd5 29. Rc6 Rfe7 30. Kf2 (30. Ra6 $18) 30... a4 31. Ra6 Re4 32.
Rxa4 Nf8 33. Ra8 Kf7 34. Ra7 Ne6 35. Be5 d4 36. exd4 Nxf4 37. Rcxc7 Nd3+ 38.
Kf3 Ne1+ 39. Kg3 Rg4+ 40. Kh3 Rxc7 41. Rxc7+ 1-0

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.07"]
[Round "1.4"]
[White "Devallee, Jérémie"]
[Black "Aggoune, Liza"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "2106"]
[BlackElo "1843"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "108"]

1. e4 c5 2. Nf3 e6 3. b4 cxb4 4. d4 Qc7 $6 (4... d5 5. e5 Nc6 6. a3 a6 7. axb4
Bxb4+ 8. c3 Bf8 9. Bd3 Nge7 10. h4 Bd7 11. h5 h6 12. O-O Nf5 13. g4 Nh4 14. Nh2
g6 15. hxg6 Nxg6 16. Bxg6 fxg6 17. Qd3 Rg8 18. Qh3 Qe7 19. Nd2 O-O-O 20. Nb3
Qf7 21. Ba3 Qf4 22. Bxf8 Rdxf8 23. Nc5 Nd8 $13 {1-0 Zvjaginsev,V (2642)
-Akopian,V (2678)/Rijeka 2010/CBM 136 (35)}) 5. Bd3 Nc6 6. O-O d6 7. a3 Nf6 8.
d5 Ne5 9. axb4 Be7 10. Nxe5 dxe5 11. c4 b6 12. Bb2 Bd7 13. f4 $1 Bd6 (13...
exf4 14. e5) 14. Kh1 exf4 15. dxe6 Bxe6 16. Na3 Bxb4 $4 {Diagram #} 17. Nb5 $4
(17. Qa4+ Nd7 18. Qxb4) 17... Qe7 18. Nc7+ Qxc7 19. Qa4+ Qd7 20. Qxb4 Qxd3 21.
Ba3 Qd7 (21... O-O-O) 22. Rad1 Qc7 23. Qb5+ Bd7 24. Qb2 Qc6 25. e5 Ng4 26. Rd6
Qxc4 27. Rc1 Qe4 28. Rxd7 $2 (28. e6 O-O 29. Rxd7 Qxe6 30. Bxf8 Rxf8 31. Rxa7)
28... Kxd7 29. Rd1+ Ke6 30. Qb3+ Kf5 31. Qxf7+ Kg5 32. Be7+ Kh6 33. h4 Qg6 34.
Qxf4+ (34. Rd6 Nf6 35. Qc4 Qg4 36. exf6 Qxh4+ 37. Kg1 g6) 34... Kh5 35. e6 {
Diagram #} Rad8 $1 36. Re1 Rd3 37. Re5+ Nxe5 38. Qxe5+ Kg4 39. Qe2+ Kg3 40.
Qe1+ Kf4 41. Bg5+ Kf5 42. Qe2 Rd4 43. e7 Qd6 44. g4+ Rxg4 45. Qf3+ Rf4 $1 46.
Bxf4 Qxf4 47. Qh5+ Kf6 48. e8=Q Rxe8 49. Qxe8 Qxh4+ 50. Kg2 Qg5+ 51. Kf2 Qd2+
52. Kf1 Qf4+ 53. Kg2 Qg5+ 54. Kf2 Qf5+ 0-1

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.08"]
[Round "2.1"]
[White "David, Vincent"]
[Black "Auvray, Simon"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2392"]
[BlackElo "2050"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "65"]

1. d4 Nf6 2. Nf3 c5 3. c4 g6 4. Nc3 Bg7 5. e4 cxd4 6. Nxd4 d6 7. Be2 Nc6 8. Be3
O-O 9. O-O Nxd4 10. Bxd4 Bd7 11. Qd2 Bc6 12. f3 a6 (12... a5 13. b3 Nd7 14. Be3
Nc5 15. Rab1 Qb6 16. Rfc1 Rfc8 17. Kh1 h5 18. Rc2 Qd8 19. Bf1 Qf8 20. a3 Kh7
21. Qe1 Ne6 22. Qf2 f5 23. exf5 Qxf5 24. Rd1 Nf4 25. b4 axb4 26. axb4 Ra3 27.
Bd4 Bxd4 28. Rxd4 Ra1 29. Rcd2 b6 30. Rd1 Rca8 31. Qe3 Ne6 32. R4d2 Qf6 33. Kg1
Ng7 34. Ne2 Nf5 35. Qxb6 Ba4 36. Rxa1 Qxa1 37. Ng3 Nxg3 38. hxg3 Qf6 39. Ra2 h4
40. gxh4 Qxh4 41. b5 Qf4 42. Qf2 {1-0 Carlsen,M (2802)-Mamedov,R (2660)/Moscow
2010/EXT 2011}) 13. Rfd1 Qd7 14. Bf1 b5 $5 15. c5 dxc5 16. Bxc5 Qc7 17. Qf2
Rfc8 18. Rac1 Nd7 $2 (18... Rd8 19. Bb6 Rxd1 20. Rxd1 Qe5 $11) 19. Bxe7 Qb7 20.
Bd6 Be5 21. b3 a5 22. Bxe5 Nxe5 23. Nd5 Rd8 24. Nf6+ Kg7 25. Rxd8 Rxd8 26. f4
Nd3 27. Bxd3 Rxd3 28. e5 a4 29. b4 Bd5 30. Ne8+ Kg8 31. Nd6 Qd7 32. h3 Rxh3 33.
f5 $1 1-0

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.08"]
[Round "2"]
[White "Smith, Mathieu"]
[Black "Breahna, Radu"]
[Result "1/2-1/2"]
[ECO "D94"]
[WhiteElo "2009"]
[BlackElo "2275"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "40"]

1. Nf3 c5 2. e3 g6 3. d4 Bg7 4. c4 Nf6 5. Nc3 O-O 6. Be2 cxd4 7. exd4 d5 8. O-O
Nc6 9. Ne5 Be6 (9... dxc4 10. Nxc6 bxc6 11. Bxc4 Bg4 12. Qa4 Bd7 13. Rd1 c5 14.
Bb5 cxd4 15. Rxd4 Bxb5 16. Rxd8 Bxa4 17. Rxa8 Rxa8 18. Nxa4 $11 {1/2-1/2 Lenic,
L (2575)-Mikhalevski,V (2625)/Novi Sad 2009/CBM 133 (42)}) 10. Nxc6 bxc6 11. c5
Nd7 (11... Ne4 12. Na4 Bd7 13. f3 Nf6) 12. Qa4 Qc7 13. Re1 Rfe8 14. Bd3 a5 15.
Ne2 Qb7 16. a3 Nf6 17. Ng3 Nd7 18. Ne2 Nf6 19. Ng3 Nd7 20. Ne2 Nf6 1/2-1/2

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.08"]
[Round "2.3"]
[White "Aggoune, Liza"]
[Black "Veron, Cyprien"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1849"]
[BlackElo "2085"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "66"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. h3 g6 6. Be3 Bg7 7. Nc3 O-O 8. Qd2
Kh7 9. g4 d6 10. g5 Ng8 11. gxh6 Bxh6 12. Bxh6 Nxh6 13. O-O-O Nd4 14. Qe3 c5
15. Rdg1 Rb8 16. Ng5+ Kg7 17. Qg3 (17. Kb1 b5 18. Bd5 b4 19. Ne2 Qf6 20. Nxd4
cxd4 21. Qd2 $16) 17... Qf6 {Diagram #} 18. Nd5 $2 (18. Kb1) 18... Ne2+ 19. Kd1
Nxg3 20. Nxf6 Nxh1 $19 21. Rxh1 Kxf6 22. h4 Kg7 23. Rg1 f6 24. Nf3 Bg4 25. Ke2
f5 26. Ke3 Bxf3 27. Kxf3 fxe4+ 28. Ke3 Rf4 29. h5 Ng4+ 30. Ke2 gxh5 31. dxe4
Rxf2+ 32. Kd3 Rbf8 33. Be6 R8f3+ 0-1

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.09"]
[Round "3.1"]
[White "Veron, Cyprien"]
[Black "David, Vincent"]
[Result "0-1"]
[ECO "D45"]
[WhiteElo "2085"]
[BlackElo "2392"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "74"]

1. Nf3 Nf6 2. c4 c6 3. d4 d5 4. Nc3 e6 5. e3 Nbd7 6. Qc2 a6 7. c5 (7. Bd2 dxc4
8. a4 c5 9. Bxc4 cxd4 10. exd4 Nb6 11. Bd3 Nbd5 12. Nxd5 Nxd5 13. O-O Nb4 14.
Bxb4 Bxb4 15. Bxh7 g6 16. Bxg6 fxg6 17. Qxg6+ Kf8 18. Ne5 Qe7 19. Rac1 Qh7 20.
Qg3 Ke8 21. d5 Bd6 22. Rfe1 Bd7 23. h3 Bxe5 24. Rxe5 Rg8 25. Qe3 Rg6 26. dxe6
Bc6 27. Rxc6 $1 bxc6 28. Qe4 Qg7 29. Qxc6+ Ke7 30. Qc5+ Ke8 31. Qc6+ Ke7 32.
Re3 Ra7 33. Qc5+ Ke8 34. Qc6+ Ke7 35. Qb6 Rxg2+ 36. Kf1 Rg1+ 37. Ke2 Ra8 38.
Qb7+ Kd6 39. Rd3+ Kxe6 40. Qc6+ {1-0 Carlsen,M (2815)-Nakamura,H (2774)/Monte
Carlo 2011/CBM 142/}) 7... Qc7 8. b4 a5 9. b5 $40 e5 10. b6 Qd8 11. Be2 e4 12.
Nd2 g6 13. Bb2 Bg7 14. O-O-O O-O 15. h4 (15. g4) 15... h5 16. Rdg1 Re8 17. Qd1
Nf8 18. Kb1 Bf5 19. Nf1 Ng4 20. Qe1 Nh7 21. a4 Bf6 22. g3 Bg7 23. Ka2 Nh6 24.
Kb3 $2 (24. Nd2 Nf8 25. Nb3) 24... Nf6 25. Nb1 Nd7 26. Bc3 Qe7 27. Nh2 Be6 28.
Kc2 {Diagram #} Nxc5 $1 29. dxc5 Qxc5 30. g4 hxg4 31. Nxg4 Nf5 32. h5 d4 $1 33.
exd4 $2 (33. h6) 33... Nxd4+ 34. Kb2 Qxb6+ 35. Kc1 Ba2 36. Na3 Qb3 37. Bb2 Nf3
0-1

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.09"]
[Round "3.2"]
[White "Breahna, Radu"]
[Black "Marie, Olivier"]
[Result "1-0"]
[ECO "E33"]
[WhiteElo "2275"]
[BlackElo "1505"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "57"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. a3 Bxc3+ 7. Qxc3 a5 8. b3
Qe7 9. Bb2 O-O 10. g3 Re8 11. Bg2 e5 12. dxe5 (12. d5 Nb8 13. O-O c6 14. Nd2
cxd5 15. cxd5 Bg4 16. e4 Rc8 17. Qe3 a4 18. b4 Rc2 19. Bc3 Be2 20. Qxe2 Rxc3
21. Rac1 Qc7 22. Rxc3 Qxc3 23. Qc4 Qxc4 24. Nxc4 Ne8 25. Nb6 $16 {1/2-1/2
Nechepurenko,R (2495)-Andreikin,D (2573)/St Petersburg  2008/CBM 123 Extra (66)
}) 12... dxe5 13. O-O Ne4 14. Qe3 f5 15. Rad1 Bd7 $2 (15... Qc5) 16. Nxe5 Nxe5
17. Bxe5 Bc6 18. Bb2 Rad8 19. Qf4 g6 20. Rd3 Nc5 21. Re3 Qd7 22. Bxc6 Qxc6 23.
Rxe8+ Rxe8 24. Qd4 Re7 25. Qh8+ Kf7 26. Qxh7+ Kf8 27. Qh8+ Kf7 28. Qg7+ Ke8 29.
Qg8+ 1-0

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.09"]
[Round "3.3"]
[White "Viart, Bettina"]
[Black "Poignot, Quentin"]
[Result "0-1"]
[ECO "A36"]
[WhiteElo "1570"]
[BlackElo "2196"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "101"]

1. e4 c5 2. c4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 d6 6. Nge2 Nf6 7. d3 O-O 8. O-O
a6 9. Bg5 h6 10. Bd2 (10. Be3) 10... Ne8 11. Qc1 Kh7 12. Nf4 Nd4 13. Nfd5 b5
14. Qd1 Rb8 15. Rb1 e6 16. Ne3 Nc7 17. b3 Bb7 18. f4 b4 19. Ne2 f5 20. Nc2 Nxc2
21. Qxc2 Ne8 22. Be3 Nf6 23. h3 Qc7 24. exf5 $6 (24. Rbe1 $11 a5 25. Bf3) 24...
exf5 25. Bxb7 Qxb7 26. d4 $2 Rfe8 27. Bf2 Ne4 28. d5 Qe7 29. Kg2 Rb7 30. Rbe1
Nxf2 31. Kxf2 Qe3+ 32. Kg2 Rbe7 $17 33. Ng1 $2 Qxe1 34. Rxe1 Rxe1 35. g4 Bd4
36. gxf5 Rxg1+ 37. Kh2 Ree1 38. fxg6+ Kg7 39. h4 Rb1 40. Qf5 Rb2+ 41. Kh3 Rxg6
42. Qd7+ Kh8 43. Qf7 Rbg2 44. Qf8+ Kh7 45. Qf7+ Bg7 46. Qf5 h5 47. Qe4 Kh6 48.
Qxg2 Rxg2 49. Kxg2 Kg6 50. f5+ Kxf5 51. Kf3 0-1

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.10"]
[Round "4.1"]
[White "David, Vincent"]
[Black "Breahna, Radu"]
[Result "1/2-1/2"]
[ECO "D41"]
[WhiteElo "2392"]
[BlackElo "2275"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "39"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 cxd4 8.
cxd4 Bb4+ 9. Bd2 Bxd2+ 10. Qxd2 O-O 11. Bc4 Nd7 12. O-O Nf6 13. Rfe1 b6 14.
Rad1 Bb7 15. Qf4 Rc8 16. Bb3 Qc7 17. Qh4 Rfd8 18. h3 (18. Re3 b5 19. Rde1 a5
20. a4 b4 21. d5 exd5 22. e5 Nd7 23. Ng5 Nf8 24. Nxh7 Nxh7 25. Rh3 Qc1 26.
Qxh7+ Kf8 27. Rhe3 d4 28. Qh8+ Ke7 29. Qxg7 Rf8 30. Qf6+ Ke8 31. e6 {1-0 Keres,
P-Fine,R/Ostend 1937/HCL}) 18... h6 19. Rd3 b5 20. Ne5 1/2-1/2

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.10"]
[Round "4.2"]
[White "Poignot, Quentin"]
[Black "Smith, Mathieu"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2196"]
[BlackElo "2009"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "53"]

1. e4 d6 2. Nf3 Nf6 3. c3 Nbd7 4. Bd3 e5 5. Bc2 Be7 6. d3 c6 7. Nbd2 Qc7 8. Nf1
a6 9. Ng3 g6 10. O-O Nf8 (10... O-O) 11. Ng5 h6 (11... Ne6 12. Qf3 h6 13. Nxe6
Bxe6) 12. Nf3 Bg4 $6 13. h3 Bd7 14. b4 Ne6 15. Be3 Nf4 16. Qd2 g5 {x f5} 17.
Nf5 Bxf5 18. exf5 Nd7 19. d4 f6 20. Bxf4 gxf4 21. Nh4 Nf8 22. g4 $6 Rg8 $6 (
22... d5 23. Ng6 Nxg6 24. fxg6 e4) 23. Rfe1 O-O-O 24. a4 c5 $6 (24... h5) 25.
bxc5 exd4 26. Qxf4 Rd7 $4 {Diagram #} 27. Rxe7 1-0

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.10"]
[Round "4.3"]
[White "Des Bouillons, Frédéric"]
[Black "Devallee, Jérôme"]
[Result "0-1"]
[ECO "B24"]
[WhiteElo "1753"]
[BlackElo "2106"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "96"]

1. e4 c5 2. g3 Nc6 3. Bg2 g6 4. Ne2 Bg7 5. Nbc3 Rb8 6. a4 a6 7. O-O e6 8. d3
Nge7 9. f4 d6 10. h3 b5 11. axb5 axb5 12. g4 Nd4 13. Ng3 (13. e5 $5 dxe5 14.
Ne4 f5 15. gxf5 exf5 16. Nxc5 Qb6 17. b4 e4 18. Ra3) 13... b4 14. Nce2 f5 $1
15. gxf5 exf5 16. Nxd4 Bxd4+ 17. Kh2 O-O 18. Ne2 Bg7 19. Rb1 Bb7 20. c3 d5 21.
e5 d4 $6 22. Bxb7 (22. Qb3+ Kh8 23. Bxb7 Rxb7 24. cxd4 cxd4 25. Bd2) 22... Rxb7
23. c4 (23. Qb3+) 23... Ra7 24. Bd2 Qb6 25. Ng1 Nc6 26. Nf3 Nd8 27. Rg1 Bh6 28.
h4 Ne6 29. Ng5 Bxg5 30. hxg5 Rfa8 $15 31. Qf3 Nc7 32. Rh1 Qb7 (32... Ra2) 33.
Qh3 Ra2 34. Kg3 Ne6 35. Qh2 R8a7 36. Qe2 Qc6 37. Qh2 Qa8 38. Bc1 Nf8 39. Bd2
Qc6 40. Rhe1 Ne6 41. Rh1 Qa8 42. Bc1 Re7 43. Bd2 Nc7 44. Qg1 Qa4 $1 45. Ra1
Rxa1 46. Qxa1 Qc2 $19 47. Rd1 Qxd3+ 48. Kh2 Qxc4 0-1

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.10"]
[Round "5.1"]
[White "Poignot, Quentin"]
[Black "David, Vincent"]
[Result "0-1"]
[ECO "C10"]
[WhiteElo "2192"]
[BlackElo "2392"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "136"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bd7 5. Nf3 Bc6 6. Bd3 Bxe4 (6... Nd7 7.
O-O Ngf6 8. Ng3 Be7 9. Re1 Bxf3 10. Qxf3 c6 11. c3 O-O 12. Bc2 Re8 13. h4 Qa5
14. a4 Rad8 15. b4 Qc7 16. a5 Bd6 17. Bb3 Bxg3 18. fxg3 Nd5 19. Ra2 e5 20. Rae2
Re6 21. Bg5 Rde8 22. c4 Nxb4 23. d5 Rd6 24. Rf2 Nc5 25. Ref1 f6 26. Bd2 Nbd3
27. Ba2 Nxf2 $19 {0-1 Nepomniachtchi,I (2720)-Gelfand,B (2741)/Moscow 2010/EXT
2011 (35)}) 7. Bxe4 c6 8. O-O Nf6 9. Bd3 Nbd7 10. Re1 Be7 11. c3 O-O 12. Bf4 c5
13. Qb3 cxd4 14. Nxd4 Nc5 15. Qc2 Bd6 16. Bxd6 Qxd6 17. Rad1 Qb6 18. Bf1 Rac8
19. Nb3 Rfd8 20. Nxc5 Qxc5 21. Rxd8+ Rxd8 22. Rd1 Rxd1 23. Qxd1 Qb6 24. Qe2 g6
25. g3 h5 26. h4 a5 27. b3 Qc5 28. c4 b6 29. Bg2 Qd4 30. Bf3 Kf8 31. Kg2 (31.
Qe3 Qxe3 32. fxe3 Ke7 33. a3 Kd6 34. b4) 31... Ke7 32. Kg1 Nd7 33. Kh2 Nc5 $15
34. Kg2 f5 (34... a4 $5) 35. Qe1 e5 36. Kg1 Nd3 37. Qd2 e4 $17 38. Bg2 Qa1+ 39.
Kh2 Qc1 40. Qe2 Ne5 41. Bxe4 fxe4 $17 42. Qxe4 Kf6 43. Qd4 Qd2 44. Qxb6+ Kf5
45. Kg2 Qxa2 46. c5 Qd2 47. Qc7 Qd5+ 48. Kg1 Nf3+ 49. Kf1 Nd2+ 50. Kg1 Nxb3 51.
c6 Nd4 52. Qc8+ Ne6 53. Qb7 Ke5 54. Qb8+ Qd6 55. f4+ Kd5 56. Qg8 Qc5+ 57. Kh1
Qc1+ 58. Kh2 Qc2+ 59. Kh1 Qd1+ 60. Kg2 Qe2+ 61. Kg1 Qe1+ 62. Kg2 Qe4+ 63. Kg1
Kd6 64. Qb8+ Nc7 65. Qa7 Qe1+ 66. Kg2 Qd2+ 67. Kh3 Kxc6 68. f5 Qd7 0-1

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.10"]
[Round "5.2"]
[White "Breahna, Radu"]
[Black "Aggoune, Liza"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2275"]
[BlackElo "1849"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "95"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qc2 Bg4 5. Ne5 Bh5 6. h3 (6. cxd5 Qxd5) 6... e6
7. g4 Bg6 8. Nxg6 hxg6 9. Bg2 Bb4+ 10. Nd2 Nbd7 11. a3 Bd6 12. e4 Nxe4 13. Nxe4
dxe4 14. Qxe4 Nf6 15. Qe2 Bc7 $6 (15... Qc7 16. Bd2 O-O-O 17. Qe3 c5 $13) 16.
Be3 Qe7 17. f4 Rd8 18. O-O-O Bd6 $6 (18... O-O) 19. Kb1 Qc7 20. f5 $40 gxf5 21.
gxf5 Rd7 22. fxe6 $16 Re7 23. exf7+ Kxf7 24. Qf3 Rhe8 25. Bg5 Re2 26. c5 Bg3
27. Rhf1 Kg8 28. Bxf6 gxf6 29. Qxf6 Qh7+ 30. Ka1 Qc2 (30... Qg7 31. Qxg7+ Kxg7
32. Bf3 R2e3 $16) 31. Qg5+ Kh8 32. Qh6+ Kg8 33. Qg5+ Kh8 34. Qh6+ Kg8 35. Rb1
$18 Bc7 36. Qg5+ Kh8 37. Rf7 Rxg2 38. Qf6+ Kg8 39. Rxc7 Rf8 40. Qe6+ Kh8 41.
Rxb7 a5 42. Qxc6 a4 43. Qh6+ Kg8 44. Qe6+ Kh8 45. Qe5+ Kg8 46. d5 Qd3 47. c6
Rf1 48. Qe6+ 1-0

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.10"]
[Round "5.3"]
[White "Devalée, Jeremie"]
[Black "Duchateau, Thomas"]
[Result "1-0"]
[ECO "B21"]
[WhiteElo "2106"]
[BlackElo "2081"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "47"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Nf3 a6 6. Bc4 Ne7 7. Bg5 f6 8. Be3
Ng6 9. O-O b5 10. Bb3 Nc6 {Diagram #} 11. Nd5 exd5 12. exd5 Nce5 13. Nxe5 fxe5
14. d6 Bb7 15. f4 $1 exf4 {Diagram #} (15... Qf6 16. fxe5 Qxe5 17. Bg5 Be7 18.
Bf7+ Kd8 19. dxe7+ Nxe7 20. Qd2 Kc8 21. Rac1+ Nc6 22. Rfd1 Qf5 23. Bf4 Qxf7 24.
Qd6 Kd8 25. Rxc6 Bxc6 26. Qxc6 {1-0 Esserman,M (2453)-Van Wely,L (2683)/
Orlando 2011/CBM 143 Extra}) 16. Re1 $3 fxe3 17. Rxe3+ Be7 18. Qd4 Qc8 19.
Rxe7+ Nxe7 20. Qe3 $1 (20. Re1 $2 Qc6 21. Bd5 {Diagram #} O-O-O) 20... Qd8 21.
Re1 Rc8 22. Qd4 Qa5 23. Rxe7+ Kd8 {Diagram #} 24. Re8+ $3 1-0

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.11"]
[Round "6.1"]
[White "David, Vincent"]
[Black "Devallee, Jérémie"]
[Result "1/2-1/2"]
[ECO "D46"]
[WhiteElo "2392"]
[BlackElo "2106"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "99"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Be7 6. Bd3 O-O 7. O-O Nbd7 8. e4
dxe4 9. Nxe4 Nxe4 10. Bxe4 Nf6 11. Bc2 b6 12. Bg5 Bb7 (12... h6 13. Bh4 Nd7 14.
Qd3 g6 15. Bg3 Bf6 16. Rad1 Bb7 17. Qe3 Bg7 18. c5 Nf6 19. Bd6 Re8 20. Ne5 Nd5
21. Qf3 Qf6 22. Qg3 Qg5 23. Qh3 bxc5 24. Bxc5 Bxe5 25. dxe5 Ba6 26. Rfe1 Bc4
27. Qf3 Nf4 28. Be3 Bd5 29. Rxd5 cxd5 30. Bxf4 $18 {1-0 Tregubov,P (2598)-Kula,
R (2351)/Warsaw 2010/CBM 139 Extra (43)}) 13. Qe2 Qc7 14. Rfe1 Rfd8 15. Rad1
Rac8 16. a3 Ne8 $6 17. Qe4 g6 18. Qh4 f6 19. Bf4 (19. Bh6 c5 20. Qh3 Ng7 21.
Bxg7 Kxg7 22. Rxe6 Rd6 23. d5) 19... Bd6 20. Bxd6 Rxd6 21. c5 bxc5 22. dxc5
Rxd1 23. Rxd1 Rd8 24. Rxd8 Qxd8 25. Bb3 (25. Qa4 $1) 25... Qe7 (25... Nc7 26.
Qb4 Ba6 27. Qe4) 26. Qc4 (26. Qb4 Ng7 27. Nd4 Kf7 28. Qa5) 26... Nc7 27. h4 (
27. Nd2 Ba6 28. Qd4 Nd5) 27... Nd5 28. Qc2 (28. Nd2) 28... e5 29. Bxd5+ cxd5
30. c6 Bc8 31. b4 a6 32. Qb3 Qd6 33. b5 axb5 34. Qxb5 Qxa3 (34... d4 $1 35. a4
e4 36. Nd2 e3 37. fxe3 dxe3 38. Qb3+ Kf8 39. Qxe3 Qxc6 $11) 35. Qxd5+ Kg7 36.
g3 (36. Kh2) 36... Qe7 37. Nd2 Be6 38. Qa5 (38. Qb5 Qd8 39. Ne4 Qd1+ 40. Kh2
Qd4 41. Qb7+ Kf8 42. c7 $16) 38... Qd6 39. Qc3 Qc7 40. Qc5 f5 41. Nc4 (41. Nf3
$1 e4 42. Nd4 Kf6 43. Nb5 $18) 41... Bxc4 42. Qxc4 Kf6 43. Qd5 Ke7 44. Qc5+ Ke6
45. Kf1 e4 46. Ke1 e3 47. f4 Qd6 48. Qxe3+ Kd5 49. Qf3+ Kc5 50. Qe3+ 1/2-1/2

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.11"]
[Round "6.2"]
[White "Martinet, Regis"]
[Black "Breahna, Radu"]
[Result "1/2-1/2"]
[ECO "B73"]
[WhiteElo "2104"]
[BlackElo "2275"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "131"]

1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 Nc6 6. Be2 g6 7. Be3 Bg7 8.
O-O O-O 9. h3 Bd7 10. Qd2 Rc8 (10... Nxd4 11. Bxd4 Bc6 12. Bf3 Nd7 13. Nd5 Bxd4
14. Qxd4 Bxd5 15. exd5 Qb6 16. Qxb6 Nxb6 17. b3 Rfc8 18. c4 Nd7 19. Rae1 Kf8
20. Bg4 f5 21. Bd1 a6 22. g4 Nf6 23. gxf5 gxf5 24. Bc2 f4 25. Rd1 b5 26. Rd4
bxc4 27. bxc4 $11 {1/2-1/2 Kiroski,T (2340)-Georgiev,V (2559)/Struga 2011/CBM
143 Extra (47)}) 11. f4 Na5 12. e5 Ne8 $6 (12... dxe5 13. fxe5 Nh5 $1 14. Bf2 (
14. Bxh5 Nc4 15. Qf2 gxh5) 14... Bxe5 15. Bxh5 gxh5 16. Qg5+ Bg7 17. Nf5 Bxf5
18. Qxf5 Nc4 $11) 13. Nf3 Nc4 14. Bxc4 Rxc4 15. Rad1 b6 16. b3 Rc8 17. Ne2 (17.
Nd5 Bc6 18. c4 e6 19. Nc3 $14) 17... Qc7 18. c4 Bc6 19. Ned4 Bxf3 20. Nb5 (20.
Nxf3 dxe5 21. fxe5 Bxe5 22. Nxe5 Qxe5 23. Rfe1) 20... Qb7 21. Rxf3 a6 22. exd6
axb5 23. d7 Rd8 24. dxe8=Q Rxd2 25. Qxf8+ Bxf8 26. Rxd2 bxc4 27. bxc4 Qc7 28.
Rc2 e6 29. Bf2 Bc5 30. Bxc5 Qxc5+ 31. Kh2 b5 32. Rfc3 h5 (32... b4 33. Rf3 Kg7
34. g3 h6 35. h4 f5 36. Rb3 g5 $11) 33. cxb5 Qxb5 34. h4 $14 Qa4 35. Rc4 Qa3
36. R4c3 Qa4 37. g3 Kg7 38. a3 Kf6 39. Re2 Qd4 40. Rce3 Qa4 41. Kg2 Qa8+ 42.
Kh2 Qa4 43. Rd2 Kf5 44. Kh3 Qa8 45. Rd1 Qa4 46. Re5+ Kf6 47. Rd3 Qc6 48. Re1
Qc2 49. Rde3 Qf5+ 50. Kg2 Qc2+ 51. R1e2 Qa4 52. Rb2 Qd4 53. Ree2 Qa4 54. Ra2
Qa8+ 55. Kh2 Qa4 56. Reb2 Kf5 57. Rb4 Qa5 58. Kh3 Qd5 59. Ra1 Qf3 60. Rb5+ Kf6
61. a4 Qg4+ 62. Kg2 Qe2+ 63. Kh1 Qf3+ 64. Kh2 Qe2+ 65. Kh1 Qf3+ 66. Kh2 1/2-1/2

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.11"]
[Round "6.3"]
[White "Smith, Mathieu"]
[Black "Bakalarz, Grazyna"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2009"]
[BlackElo "1989"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "76"]

1. Nf3 Nf6 2. d3 d5 3. Nbd2 g6 4. e4 dxe4 5. dxe4 Bg7 6. Bc4 O-O 7. O-O Nc6 8.
h3 e5 9. c3 Qe7 10. Qe2 Nh5 11. Nb3 Be6 12. Bg5 f6 13. Be3 Nf4 14. Bxf4 exf4
15. Bxe6+ Qxe6 16. Nc5 Qc8 17. Qc4+ Rf7 18. Rad1 Na5 19. Qb5 (19. Qa4 b6 20.
Nd3 Qe8 21. Qc2 $16) 19... b6 20. Nb3 c6 21. Qd3 Nxb3 22. axb3 Qc7 23. Rd2 Re8
24. Nh2 $6 (24. b4 Rfe7 25. Nd4 Rxe4 26. Qc4+ Kh8 27. Qxc6 $14) 24... a5 25.
Rfd1 Bf8 26. Re2 b5 27. Nf3 Bc5 28. Rde1 Rfe7 29. Kf1 Kg7 30. Kg1 Kg8 31. Nd2
Rd8 32. Qc2 Rde8 33. Nf3 Kg7 34. Kf1 h6 35. Rd1 h5 36. Nh4 Re5 37. Nf3 R5e7 38.
Nh4 Re5 1/2-1/2

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.12"]
[Round "7.1"]
[White "Martinet, Régis"]
[Black "David, Vincent"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "2104"]
[BlackElo "2392"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "52"]

1. e4 c5 2. d4 cxd4 3. Nf3 e6 4. Bc4 a6 5. Bb3 Nc6 6. O-O Bc5 7. c3 dxc3 8.
Nxc3 d6 9. Qe2 Nf6 10. Rd1 $2 (10. Be3 Bxe3 11. Qxe3 O-O 12. Rfd1 Qe7 13. Rac1
$13) 10... Ng4 11. Rf1 h6 12. Bf4 (12. e5 Ngxe5 13. Nxe5 dxe5 14. Qg4 g6 15.
Be3) 12... Qf6 13. Bg3 Nge5 $15 14. Nxe5 dxe5 15. Rac1 Ba7 16. Kh1 h5 17. f4 h4
18. Be1 exf4 19. Nd5 exd5 20. exd5+ Qe7 21. Qd1 Nd4 22. Bc3 Nxb3 23. Qxb3 h3
24. Rfe1 Be3 25. Rxe3 fxe3 26. Bxg7 Qe4 0-1

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.12"]
[Round "7.2"]
[White "Breahna, Radu"]
[Black "Poignot, Quentin"]
[Result "1/2-1/2"]
[ECO "A25"]
[WhiteElo "2275"]
[BlackElo "2196"]
[PlyCount "41"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 O-O 5. e3 d6 6. Nge2 e5 7. O-O Nc6 8. d3
Be6 9. Nd5 Ne8 10. Nec3 Qd7 11. f4 f5 12. Qa4 Kh8 13. Rb1 Nb8 14. Qxd7 Nxd7 15.
Ne2 c6 16. Ndc3 a5 17. b3 Nef6 18. h3 Nc5 19. Rd1 Rad8 20. Bb2 Ng8 21. Kf2
1/2-1/2

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.12"]
[Round "7.3"]
[White "Devallee, Jérémie"]
[Black "Veron, Cyprien"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2106"]
[BlackElo "2085"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "71"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. O-O d6 6. Re1 g6 7. d4 $1 Qe7 8. Nc3
Bg4 9. Bb5 a6 (9... Bxf3 10. Qxf3 a6 11. Nd5 Nxd5 12. exd5 axb5 13. dxc6) 10.
Bxc6+ bxc6 11. dxe5 dxe5 12. h3 Bxf3 (12... Rd8 13. Qe2 Bxf3 14. Qxf3 Bg7 15.
Qe2 a5 16. Qa6) 13. Qxf3 Bg7 14. Qd3 O-O 15. Qc4 Qe6 16. Qxe6 fxe6 $16 17. Be3
Rfd8 18. f3 Rd7 19. Kf2 Rad8 20. Ke2 Nh5 21. Rad1 Nf4+ 22. Bxf4 (22. Kf2 Rd6
23. h4 Bf8 24. g3) 22... exf4 23. Rxd7 Rxd7 24. Rd1 Rxd1 (24... Rd6) 25. Nxd1
Kf7 26. c3 Ke7 27. Kd3 Kd6 28. Kc4 Kd7 29. Nf2 g5 30. Nd3 Bf8 31. b4 Kc8 32.
Nc5 $18 Bxc5 33. Kxc5 Kd7 34. e5 h5 35. a3 h4 36. c4 1-0

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.13"]
[Round "8.1"]
[White "David, Vincent"]
[Black "Bakalarz, Grazyna"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2392"]
[BlackElo "1989"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "106"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 Ne4 4. Bf4 Bg7 5. Nbd2 d5 6. c3 c5 7. e3 Nc6 8. Nxe4
dxe4 9. Ng5 cxd4 10. exd4 Qd5 11. Qb3 (11. f3 exf3 12. Qxf3 Qxf3 13. Nxf3 Be6
14. Ng5 Bd5 15. c4 h6 16. cxd5 hxg5 17. dxc6 gxf4 18. cxb7 Rb8 19. Ba6 Bxd4 20.
Rc1 Bxb2 21. Rc4 Be5 22. Ke2 f5 23. h3 Kf7 24. Rhc1 {1-0 Ye Rongguang (2500)
-Visser,Y (2380)/Groningen 1997/CBM 062 ext (72)}) 11... Qxb3 12. axb3 f5 13.
Bc4 e5 14. dxe5 Bxe5 15. Be3 h6 16. Nf7 Rh7 17. Nxe5 Nxe5 18. Be2 a6 19. O-O-O
Be6 20. Kc2 Rd8 21. Rxd8+ Kxd8 22. f3 exf3 23. gxf3 Bd5 24. Rf1 g5 25. c4 Bc6
26. f4 gxf4 (26... Be4+ 27. Kc3 Ng6 28. fxg5 hxg5 29. Bxg5+ Kd7 30. Rf2 Rh3+
31. Kb4 Ne5) 27. Bxf4 Ng4 28. Bd3 Be4 29. Bxe4 fxe4 30. Re1 Nf6 31. Be5 Ke7 32.
Kc3 (32. Bxf6+ Kxf6 33. Rxe4 Rg7 34. Rd4 Ke5 35. Rd5+ Ke4 36. Kc3 Rf7 37. Rd4+
Ke5 38. Rh4) 32... Ke6 33. Bd4 (33. Bxf6) 33... Rd7 34. b4 h5 35. Rf1 Ng4 36.
h3 Ne5 37. Rf4 Nf3 38. Bh8 Rd3+ 39. Kc2 Re3 40. Bc3 Ng5 41. Rf6+ Ke7 42. Rf5
Nxh3 43. Rxh5 Nf2 44. Rh7+ Ke6 45. Rh6+ $6 (45. Rxb7 Re2+ 46. Kb3 Nd1 47. Rb6+
Kd7 48. Be5 Re3+ 49. Ka2 Ke7 50. c5 $16) 45... Kd7 46. b5 axb5 47. cxb5 Re2+
48. Kb3 Nd3 49. Kc4 Nxb2+ 50. Kd5 Nd3 51. Rh7+ Ke8 52. Rxb7 Nf4+ 53. Ke5 Nd3+
1/2-1/2

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.13"]
[Round "8.2"]
[White "Poignot, Quentin"]
[Black "Devallee, Jérémie"]
[Result "1/2-1/2"]
[ECO "C44"]
[WhiteElo "2196"]
[BlackElo "2106"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "46"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. c3 d3 (5... Nf6 6. e5 d5 7. Bb5
Ne4 8. cxd4 Bb6 9. Nc3 O-O 10. Be3 Ne7 11. Bd3 Bf5 12. O-O Nxc3 13. bxc3 Rc8
14. Nh4 Bxd3 15. Qxd3 c5 16. Bg5 Qd7 17. Bxe7 Qxe7 18. Nf5 Qd7 19. Qf3 Qe6 20.
c4 $40 {1-0 Jones,G (2606)-Howell,D (2625)/Sheffield 2011/CBM 143 Extra (40)})
6. O-O d6 7. Qxd3 Bg4 8. Bg5 Qd7 (8... Nf6 9. Nbd2 h6 10. Bf4 Nh5 11. Be3 Bxe3
12. Qxe3 O-O $11) 9. b4 Bb6 10. Nbd2 Nge7 11. Bb3 (11. h3 Be6 (11... Bh5 12.
Bb3 O-O 13. a4 a5 14. Nc4) 12. Bxe6 Qxe6 13. a4 a5 14. Nc4) 11... Ng6 12. Nc4
Be6 13. Rad1 f6 14. Bc1 Nge5 $1 15. Nfxe5 Nxe5 16. Nxe5 dxe5 $2 (16... fxe5 17.
c4 Bd4) 17. Bxe6 (17. Qg3 Qe7 18. Bxe6 Qxe6 19. a4 a6 20. a5 Ba7 21. Rd5 O-O
22. Rfd1) 17... Qxe6 18. Qd5 Qxd5 19. Rxd5 c6 20. Rd3 Ke7 21. Rfd1 Rhd8 22.
Rxd8 Rxd8 23. Rxd8 Bxd8 1/2-1/2

[Event "Open d'Eté"]
[Site "?"]
[Date "2012.07.13"]
[Round "8.3"]
[White "Busson, Didier"]
[Black "Breahna, Radu"]
[Result "1/2-1/2"]
[ECO "B30"]
[WhiteElo "1796"]
[BlackElo "2275"]
[Annotator "Navrotescu,Catalin"]
[PlyCount "40"]

1. e4 c5 2. Nf3 d6 3. d3 Nc6 4. g3 g6 5. Bg2 Bg7 6. c3 e5 7. a4 Nge7 8. Be3 O-O
9. Na3 f5 10. Qb3+ Kh8 11. Ng5 f4 12. Bd2 d5 13. exd5 Na5 14. Qa2 h6 (14...
Nxd5 15. Bxd5 Qxg5 16. Nc4 Qd8) 15. h4 Nf5 16. Ne4 f3 17. Bh3 b6 18. g4 Nxh4
19. O-O-O g5 20. c4 Nb7 $11 1/2-1/2

