[Event "WCh w"]
[Site "Tirana ALB"]
[Date "2011.11.21"]
[Round "6"]
[White "Koneru, H."]
[Black "Hou Yifan"]
[Result "0-1"]
[ECO "D38"]
[WhiteElo "2600"]
[BlackElo "2578"]
[Annotator "Doe,John"]
[PlyCount "76"]
[EventDate "2011.11.14"]

1. d4 e6 2. c4 Nf6 3. Nf3 d5 4. Nc3 Bb4 5. Qa4+ Nc6 6. e3 O-O 7. Bd2 dxc4 8.
Bxc4 Bd6 9. Qc2 ({This was recently played at top level:} 9. Nb5 Bd7 10. Qb3
Ne4 11. Nxd6 cxd6 12. Bd3 Nxd2 13. Nxd2 Qa5 14. a3 Rab8 15. Qb5 Qxb5 16. Bxb5
Rfc8 17. Ne4 d5 18. Nc5 Be8 19. Bxc6 Rxc6 {1/2-1/2 (19) Ponomariov,R (2744)
-Kramnik,V (2784) Wijk aan Zee 2011}) 9... a6 {[%eval 14,23]} 10. a3 {[%eval
20,23]} e5 {[%eval 9,24]} 11. dxe5 $146 {[%eval -5,21]} Nxe5 {[%eval 0,21]} 12.
Nxe5 {[%eval 0,21]} Bxe5 {[%eval -1,20]} 13. f4 {[%eval 6,24]} Bxc3 {[%eval 19,
20]} 14. Bxc3 {[%eval 10,27]} Qe7 {[%eval 18,24]} 15. O-O {[%eval 20,26]} Qxe3+
{[%eval 29,20]} 16. Kh1 {[%eval 8,26]} Qb6 {[%eval 39,25]} 17. f5 {[%eval 40,
25]} Bd7 {[%eval 34,26]} 18. Bb4 {[%eval 35,26]} Rfe8 {[%eval 28,19]} 19. Rad1
{[%eval 23,25]} Qc6 {[%eval 34,27]} 20. Qb3 {[%eval 40,16]} Kh8 {[%eval 38,19]}
21. Rc1 {[%eval 0,23]} Qb6 {[%eval 0,20]} (21... Re5 {and now} 22. Bxf7 {is
met by} Rxf5 $1 {with an unusual backrank motif.}) 22. Bxf7 {[%eval 0,21]} Re5
{[%eval 47,24]} 23. Bc3 {[%eval 29,25]} Qxb3 {[%eval 20,24]} 24. Bxb3 {[%eval
43,26]} Re3 {[%eval 44,25]} 25. Bc4 {[%eval 43,20]} Rae8 {[%eval 49,20]} 26.
Bd4 {[%eval 51,23]} R3e7 {[%eval 50,22]} 27. Ba2 {[%eval 11,24]} Re2 {[%eval
25,21]} 28. Bf7 {[%eval 24,21]} R8e7 {[%eval 24,25]} 29. Bc4 {[%eval 23,25]}
R2e4 {[%eval 52,21]} 30. Bc5 {[%eval 0,25]} Re8 {[%eval 0,23]} 31. Bf7 {[%eval
2,26]} R8e5 {[%eval 7,24] The challenger has relinquished the small advantage
she had, and now in acute time trouble (of both players) she hands over to the
opponent.} 32. Ba2 {[%eval -49,20]} Bc6 {[%eval -57,22]} 33. Rg1 $2 {[%eval
-98,25]} Re2 {[%eval -145,19]} 34. Bd4 {[%eval -145,21] Protecting the b2 pawn
but giving up the one on f5.} Rxf5 {[%eval -145,21]} 35. Bc4 {[%eval -129,25]}
Rd2 {[%eval -144,22]} 36. Bc3 $4 $19 {[%eval -562,18] Time trouble blunder.}
Ne4 {[%eval -319,25]} 37. Rge1 $2 {[%eval -32759,56] Now it is mate in four.} (
{Black was threatening smothered mate if the rook was taken:} 37. Bxd2 Nf2#)
37... Ng3+ 38. hxg3 Rh5+ (38... Rh5+ 39. Kg1 Rxg2+ 40. Kf1 Rh1#) 0-1

