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Hou, Yifan (2618) - Dzagnidze, Nana (2550) [B41]
Women's Grand Prix, Khanty-Mansiysk (3) 2014

Notes by Boris Schipkov

1. e4 c5
The Sicilian Defence.
2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Qc7 7. Be2 b6 8. O-O Bb7 9. Qd3 Nc6 10. Nxc6








   
10...dxc6
In the game Konnyu, J - Bromberger, S, Austria 2009 after 10...Bxc6 11. Be3 Bb4 12. f3 (12. Rac1!) 12...O-O 13. a3 (13. Rfd1) 13...Bc5 (13...Bd6) 14. b4 Bxe3+ 15. Qxe3 d6 16. Rac1 White had a small advantage thanks to a space preponderance.
11. f4 Bc5+ 12. Kh1 O-O 13. e5 Rad8 14. Qh3 Nd7 15. Ne4 Be7 16. Bd3








   
16...g6?!
Black can try 16...h6 17. Bc2 c5 18. a4, with a small edge to White.
17. b3!
White intends to fianchetto the dark-squared bishop to control the long diagonal to attack the king.
17...c5 18. Bb2 Bxe4 19. Bxe4 b5?
A mistake. 19...f5 is better, 20. exf6 Bxf6 21. Qxe6+ Kg7 22. Qe7+ Rf7 23. Bxf6+ Nxf6 24. Qxc7 Rxc7 25. Bf3, and White has an extra pawn in the endgame.
20. f5!!
White storms Black's citadel.
20...exf5








   
21. Rxf5!
Great! Hou Yifan sacrifices a rook to checkmate the rival with bishops and the queen.
21...Qb6
Or 21...f6 22. Raf1 gxf5 23. Bxf5 Rf7 24. e6 Rg7 25. exd7, with a huge edge to White.
22. Qh6! gxf5
Or 22...f6 23. Rh5! Rf7 24. Bxg6!, winning.
23. e6








   
23...Nf6 24. Qg5+
After 24...Kh8 25. Bxf6+ Bxf6 26. Qxf5 White checkmates the rival with Qxh7.
Black resigned. 1-0










Move
   

Hou, Yifan (2618) - Dzagnidze, Nana (2550) [B41]
Women's Grand Prix Khanty-Mansiysk/Khanty-Mansiysk (3) 2014

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Qc7 7. Be2 b6 8. O-O Bb7 9. Qd3 Nc6 10. Nxc6 dxc6 11. f4 Bc5+ 12. Kh1 O-O 13. e5 Rad8 14. Qh3 Nd7 15. Ne4 Be7 16. Bd3 g6 17. b3 c5 18. Bb2 Bxe4 19. Bxe4 b5 20. f5 exf5 21. Rxf5 Qb6 22. Qh6 gxf5 23. e6 Nf6 24. Qg5+ 1-0


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© 2014 Boris Schipkov