WGP Geneva: shocker in round three

[Event "Fondation Neva Women's Grand Prix"] [Site "Geneva"] [Date "2013.05.05"] [Round "3.1"] [White "Batchimeg, Tuvshintugs"] [Black "Hou, Yifan"] [Result "1-0"] [ECO "A46"] [Annotator "Mikhalchishin"] [PlyCount "83"] [EventDate "2013.??.??"] [WhiteClock "0:41:23"] [BlackClock "0:30:34"] {The biggest sensation of the tournament - the bottom seed beats the top seed! Hou Yifan successfully finished the very strong Chinese mens Championship just few days before Geneva. We can remember that in similar situation last year in Kazan she played very inconvincigly on the start. But later showed her real power.} 1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. O-O d5 ({Theory prefers a different path} 5... c5 6. c4 Be7 7. Nc3 cxd4 8. exd4 d5 9. cxd5 Nxd5 {with a very sharp middlegame. But many players in modern times hate to play with or against an isolated pawn.}) 6. c4 Bd6 7. b3 ({Another way is} 7. Nc3 O-O 8. Qe2 Ne4 9. Rd1) 7... O-O 8. Bb2 Nbd7 9. Nc3 a6 10. Rc1 ({White cannot prepare the e3-e4 break immediately} 10. Qc2 dxc4 11. bxc4 Bxf3 12. gxf3 c5 {with serious counterplay.}) ({But the classical plan in the center looks like this: } 10. Qe2 Ne4 11. Rac1 ({very logical is another rook setup} 11. Rad1 Qe7 12. Bb1 Nxc3 13. Bxc3 Nf6 14. Ne5 $14 dxc4 15. Nxc4 Be4 16. Bxe4 Nxe4 17. Bb2 b5 18. Ne5 c5 $5 19. Qc2 $1 f5 20. dxc5 Nxc5 {with a small positional advantage, Keres,P-Furman,S/Tallinn 1971}) 11... Qe7 (11... f5) 12. Rfd1 (12. Na4 $5 f5 13. Ne5 Bxe5 14. dxe5 dxc4 15. Rxc4 $1 $14 (15. bxc4 Qb4 $1)) 12... f5 (12... c5 $5 13. cxd5 exd5 14. dxc5 Nxc3 $1 15. Bxc3 bxc5 $132) 13. Na4 $1 f4 $6 $146 (13... Rf6 $5 14. c5 bxc5 15. dxc5 Nexc5 $1 16. Nxc5 Bxc5 17. Bxf6 Nxf6 18. Qc2 Bb6 $44) 14. Rc2 $1 Rf7 $6 15. exf4 Bxf4 16. Bc1 $1 $16 {White exchanges the most dangerous black piece and is prepared to open the c-file, Kacheishvili,G (2593)-Sokolov,A (2584)/Plovdiv 2003}) 10... Qe7 11. cxd5 exd5 12. Ne2 $1 {This knight transfer allowes White to limit opponents attacking possibilities on the king's flank.} Ne4 13. Ng3 f5 14. Qc2 ({More logical would be the immediate} 14. Qe2) 14... Rf7 15. Qe2 $1 {The Mongolian players admits her small mistake} g5 $6 {A very sharp and direct way of attack.} 16. Rc2 g4 17. Bxe4 $5 fxe4 $6 ({Here the Mongolian player said in the press conference another capture would be much better:} 17... dxe4 18. Nd2 b5 19. a4 Nb6) 18. Ne5 $1 Bxe5 19. dxe5 Nxe5 20. Bxe5 Qxe5 21. Qxg4+ Rg7 $2 ({Clearly better was to concentrate on pressure on the f-file} 21... Kh8 22. b4 Raf8) {White is speculating with a queens exchange, forcing her opponent's queen to leave its strong position.} 22. Qf5 $1 Qd6 23. Rd1 ({A very interesting try was to close the f-file} 23. f4 exf3 $2 24. Qxf3 {with very unpleasant threats.}) 23... Rf8 24. Qh5 Qe6 25. b4 $1 {The Mongolian player stops the c5 move.} c6 26. Ne2 $1 {It is impressive how the Mongolian, mow living in Oakland, California transfers her knight. On f4 it will be very strong.} Qe7 27. Nf4 Qf6 28. Qe2 ({More direct was} 28. a4 {trying to play a5, destroying black's pawn structure.} ) 28... Rg5 ({After} 28... Qg5 29. g3 {The white knight on f4 is very strong. Black has many holes in the position, and it is not clear how to defend and repair her position.}) 29. h4 Re5 30. g3 Qd6 31. a3 ({Very strong was to stop c5 after} 31. Qc4 $1 Rc8 32. Qc3 c5 33. bxc5 bxc5 34. Rb2 Ba8 35. Rb6 $1) { Sooner or later Black will try to open her bishop} 31... c5 32. bxc5 bxc5 33. Rb2 $1 {The white rooks start to control the b-file.} Ba8 34. Rdb1 d4 35. Rb6 Qd7 36. Qc4+ Kh8 37. Rb8 {Now Black has no defence, as her pieces on the eighth rank are very badly placed.} Rd8 38. Ne6 $1 {Nice, but a simpler solution was possible:} (38. Qxa6) 38... Bd5 39. Nxd8 $1 Re8 ({Or} 39... Bxc4 40. Ne6+ {with mate.}) 40. Qxc5 d3 41. Qd4+ Kg8 42. R1b7 1-0