Recent analysis of my game vs T.Kosintseva from the WCC

 [Event "2010 WWCC"]  [Site "Antakya"]  [Date "2010.12.07"]  [Round "21.4"]  [White "Kosintseva, Tatiana"]  [Black "Dembo, Yelena"]  [Result "0-1"]  [ECO "B66"]  [WhiteElo "2581"]  [BlackElo "2454"]  [Annotator "Dembo,Yelena"]  [PlyCount "80"]  [EventDate "2010.??.??"]   1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8.  O-O-O Bd7 9. f3 h6 10. Be3 b5 11. Kb1 Ne5 12. Bd3 (12. g4 b4 13. Nce2 Nc4 14.  Qd3 (14. Qc1 d5 15. Ng3 Nxe3 16. Qxe3 dxe4 17. Nxe4 Nd5 $36 {Malisauskas-Greenf  alisauskas-Greenfeld, Oslo 1992}) 14... d5 $36) 12... Be7 {Not so useful as  sometimes the B has to move once more or can be better placed on a1-h8  diagonal.} (12... Qc7 13. Rhe1 (13. g4 b4 14. Nce2 Nxd3 $5 (14... d5 15. exd5 (  15. Bf4 dxe4 16. Bxe4 Nxe4 17. fxe4 (17. Qe3 Bd6 18. Qxe4 O-O $11 {0-1 Estevez  Morales,G (2360)-Geller,E (2620)/Sochi 1976/MCD (36)}) 17... f6 $11 {1-0 Varga,  Z (2565)-Cao Sang (2495)/Budapest 1998/EXT 2000 (54)} (17... Rc8 18. b3 f6 19.  h4 Qb7 20. Bxe5 fxe5 21. Nf3 Bc6 $132 {1/2-1/2 Anand,V (2710)-Kramnik,V (2685)/  Amsterdam 1993/CBM 035/[Ftacnik] (27)})) (15. Ng3 Nc4 $1 16. Qe2 (16. Bxc4 dxc4  17. h4 c3 $15 {1-0 Arnason,J (2500)-Ivanovic,B (2490)/Plovdiv 1986/EXT 2000/  [Bulletin] (35)}) 16... Nxe3 17. Qxe3 Bd6 $36 {1/2-1/2 Arnason,J (2540)-Yrjola,  J (2415)/Gausdal 1987/CBM 004 (27)}) (15. g5 dxe4 16. fxe4 {(Gulbas,C (2379)  -Lutsko,I (2489)/Fuegen 2006)} hxg5 17. Bxg5 Nxd3 18. Qxd3 Be7 $11) 15... Nxd5  16. Nf4 (16. Bf2 {(Sjugirov,S (2588)-Kononenko,D (2569)/Dagomys 2009)} Rb8 $36)  16... Nxf4 (16... Nxe3 17. Qxe3 Nxd3 (17... Bc5 {(Andersen,M (2338)-Mikkelsen,  N (2361)/Edinburgh 2009)} 18. Rhe1 $40) 18. Rxd3 $14) 17. Bxf4 Bd6 18. Be4 Nc4  19. Qe2 {1/2 Oll-Lerner, Podolsk 1993}) 15. cxd3 e5 $11) (13. Qf2 b4 14. Nce2 {  (Magem Badals,J (2570)-Delchev,A (2510)/Manresa 1996)} Nxd3 15. cxd3 e5 $36)  13... Rb8 (13... b4 14. Nce2 a5 $36 (14... d5 $6 15. exd5 Nxd5 16. Nf4 Nxe3 17.  Qxe3 Bd6 (17... Nxd3 $2 18. Qxd3 $18 Be7 (18... O-O-O 19. Qxa6+ Kb8 20. Nc6+  $18 {1-0 Erdogdu,M (2463)-Daskevics,V (2341)/Pardubice 2009/CBM 131 Extra (28)}  ) 19. Nf5 $18 {1-0 Ivanovic,B (2415)-Draganic,V (2278)/Cetinje 2009/CBM 131  Extra (24)}) 18. Qe4 (18. Nfxe6 fxe6 19. f4 Nxd3 20. Nxe6 Bxe6 21. Qxe6+ Be7  22. Rxd3 Rd8 23. Rde3 Rd7 24. Qg6+ Kf8 {(Rodriguez Cespedes,A (2510)-Delchev,A  (2510)/Olot 1996)} 25. Qxa6 $14) 18... Rd8 {(Rodriguez Lopez,R (2285)-Grabics,  M (2345)/Budapest 1998)} 19. Bxa6 $14)) 14. g4 (14. f4 Nc4 15. Bxc4 bxc4 (15...  Qxc4 $6 16. b3 $16 {1-0 Vallejo Pons,F (2702)-Caruana,F (2646)/Wijk aan Zee  2009/CBM 129 (30)}) 16. Bf2 (16. Ka1 $6 Qb7 {de la Villa}) 16... Qb7 17. b3 a5  18. e5 {|^ de la Villa} dxe5 19. fxe5 Nd5 20. Nxd5 (20. Ne4 a4 $40) 20... Qxd5  $40) (14. Ka1 b4 15. Nce2 a5 16. g4 {(Ivanovic,B (2405)-Vuckovic,B (2511)/  Sozina 2004)} a4 $40) 14... b4 15. Nce2 d5 {(Fernandez Romero,E (2434)-Baklan,  V (2606)/Lorca 2006)} 16. Bf4 $5 $13) (12... b4 $6 13. Nce2 d5 14. exd5 Nxd5  15. Nf4 Nxe3 16. Qxe3 Bd6 17. Nb3 $5 $14 {[%cal Gf4h5,Gd1d8]} (17. Ndxe6 $5  Bxe6 18. Nxe6 fxe6 19. f4 Nxd3 {(Neubauer,M (2456)-Pilaj,H (2388)/Tweng 2007)}  20. Qxd3 O-O 21. Qxd6 Qxd6 22. Rxd6 Rxf4 23. Rxe6 Rf2 24. g3 $14)) (12... Rc8  13. Rhe1 Qc7 (13... Be7 14. g4 b4 15. Nce2 {(Salgado Lopez,I (2461)-Guliyev,N  (2590)/Ourense 2007)} a5 $13) 14. g4 b4 15. Nce2 Qb7 16. Ng3 g6 17. h4 Bg7 (  17... Nxd3 $5) 18. Be2 $14 {1/2-1/2 Ibarra Jerez,J (2496)-Comas Fabrego,L  (2495)/Sabadell 2008/CBM 126 (28)}) 13. g4 b4 $6 {It is too early to open the  center up yet.} (13... Nxd3 14. cxd3 b4 15. Nce2 a5 $132 {1-0 Molnar,B (2375)  -Vamos,V (2140)/Szekszard 1996/EXT 2004 (34)}) 14. Nce2 d5 15. exd5 Nxd5 16.  Nf4 {White is getting ready to sacrifice one of the Knights on e6.} Nxe3 (16...  Nxd3 17. Qxd3 (17. Nxd5 Nxb2) 17... Nxe3 18. Qxe3 Qa5 19. Nh5 $14) 17. Qxe3 Qa5  $6 {The Q is badly placed here.} ({Better was} 17... Bd6 $5 18. h4 Nxd3 19.  Nxd3 O-O 20. g5 h5 21. Ne5 $14) (17... Qc7) 18. h4 $6 {Loses time.} (18. Rhe1  $5 Nxd3 19. Qxd3 O-O-O 20. Nb3 $14) 18... Nxd3 $6 {This exchange is premature  and moreover it improve the white Knight.} (18... Rd8 $1 $11) 19. Nxd3 $14 Qc7  (19... Rd8 20. Qe4 $14) 20. Ne5 Rd8 21. g5 $16 g6 $2 {A terrible mistake. 22.  h5 just didn't cross my mind for some reason, although it is the most simple  answer here.} (21... Bd6 22. Nxd7 Rxd7 23. g6 O-O 24. gxf7+ $16) 22. Qe4 $2 {  It didn't cross her mind either...} (22. h5 $1 $18) 22... h5 {Finally the  kingside is blocked.} 23. Ndc6 $2 {Gives a big part of the advantage away.  There was no need to exchange the active pieces.} (23. Rhe1 $18) (23. Nxg6 $5  fxg6 24. Qxg6+ Kf8 25. Nxe6+ Bxe6 26. Rxd8+ Bxd8 27. Qxe6 $18) 23... Bxc6 24.  Rxd8+ Qxd8 (24... Bxd8 25. Nxc6 O-O 26. Nxb4 Be7 27. Nd3 $16) 25. Nxc6 (25.  Qxc6+ $5 Kf8 26. Qxa6 Qd5 27. Re1 $16) 25... Qd6 26. Ne5 $16 {White pieces are  still active but there are less of them now :-)} Qd5 27. Qxd5 exd5 28. Rd1 $2 {  White is being greedy.} (28. Re1 $1 $16 Rf8 (28... Kf8 29. Nd7+ Ke8 30. Nf6+)  29. Nc6 (29. b3 Kd8 30. Rd1) 29... Kd7 30. Nxe7 Re8) 28... Bc5 $1 {Seeking  counterplay.} 29. Rxd5 (29. f4 Bf2 30. Nf3 f6 $11) 29... Bf2 $44 30. Rd8+ $2 {  But this is just suicidal as the Knight cannot get out...} (30. Nc6 Kf8 $1 31.  Nxb4 Bxh4 $44) (30. Nc6 Kf8 31. Nxb4 Bxh4) 30... Kxd8 31. Nxf7+ Ke8 32. Nxh8  Bxh4 {Creating an outside passed pawn.} (32... Bg3 33. c4 bxc3 34. f4 (34. bxc3  Kf8 $19) 34... Bxf4 35. b4 Be5 36. Nxg6 Bg3 $19) 33. Kc1 (33. Nxg6 Bxg5 34. Ne5  Ke7 $19) (33. f4 Bxg5 $19) 33... Bg3 34. Kd1 Kf8 (34... h4 $5) 35. Nxg6+ Kf7  36. Nh8+ Kg7 37. Ke2 Be5 38. c4 bxc3 39. bxc3 Kxh8 40. c4 Bf4 0-1