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Hou, Yifan (2673) - Navara, David (2730) [B12]
Tata Steel Masters, Wijk aan Zee (4) 2016

Notes by Boris Schipkov

1. e4 c6 2. d4 d5
The Caro-Kann Defence.
3. e5 Bf5 4. Nf3 e6 5. Be2 Nd7 6. O-O Bg6 7. Nbd2 Nh6 8. Nb3 Nf5 9. Bd2 Be7 10. g4








   
10...Nh4
The alternative is 10...Nh6 11. h3 Ng8 12. Ne1 h5 13. gxh5 Be4 14. Bd3 Bxd3 15. Nxd3 Nh6 16. Bxh6 Rxh6 17. Kh2 Qc7, with counterplay in Sevian, S - Kamsky ,G, Rockville 2015.
11. Nxh4 Bxh4 12. f4 f5
Black can continue also 12...Be4.









   
13. c4!
A good move. White plans to seize the c-file in the near future. After 13. exf6 Qxf6 14. g5 Qf7 15. Na5 Nb6 (15...O-O-O 16. c4 Bf5 17. Rc1 Nb6 18. c5 Nc4 19. Bxc4 dxc4 20. Nxc4 Bh3 21. Rf3 Bg4 22. Ne5 Qf5 23. Qa4 Rxd4 24. Qxa7 Rxd2 25. Qa8+ Kc7 26. Qa5+ Kb8? (26...Kc8=) 27. Nxc6+, 1-0 Sjugirov, S - Dreev, A, Rhodes 2013) 16. Bd3 Bh5 17. Nxb7 Nc8 18. Be2 Bxe2 19. Qxe2 Qxb7 20. Qh5+ Qf7 21. Qxh4 Nd6 22. Bb4 (22. Qh3 Qf5 23. Qxf5 exf5 24. Rf3 Kd7 25. Re1 Ne4 26. Bb4 a5 27. Bc5 h6, with counterplay in Wei, Y - Gunina, V, Wijk aan Zee 2015) 22...Ne4 23. c4 a5 24. Ba3 Qf5 25. cxd5 cxd5 26. Rac1 Kd7, Black had counterplay in Khalifman, A - Sjugirov, S, Legnica 2013. Or 13. Bd3 Be7 14. Be3 O-O 15. Kh1 Qe8, with counterplay in Grischuk, A - Wang, H, Beijing 2013.
13...a5
A novelty. But 13...Be7 is more precise, 14. cxd5 cxd5 15. Rc1 O-O 16. Bd3 a5 17. a4 fxg4? (17...Nb8 is better) 18. Bxg6 hxg6 19. Qxg4 Qb6 20. Rc3 Bb4, Mortensen, E - Rasmussen, K, Denmark 2008, and here 21. Rh3! is stronger, 21...Rf5 22. Qxg6 Nf8 23. Qg2 Bxd2 24. Rg3 Rf7 25. Qxd2, with a clear edge to White.
14. a4 O-O?!
14...Be7 is better, but White has a small or slight advantage.









   
15. g5!
White seizes space on the kingside, and Black has to play ...h6, weakening his camp.
15...h6 16. gxh6 gxh6 17. Kh1
17. Bh5 is also possible.
17...Kh7 18. cxd5
18. c5!? is also good, and White can try to grab the a5-pawn.
18...cxd5 19. Rc1 b6 20. Rc6 Rc8?!
20...Bf7 is more precise.









   
21. Rxe6!
Great! Hou Yifan sacrifices the exchange.
21...Bf7 22. Rd6 Be7 23. Bd3 Bxd6 24. Bxf5+ Kh8 25. Qg4!
Very strong.









   
25...Rc7
If 25...Rg8 then 26. Qh3 Bf8 27. e6! Bg6 28. Bxg6 Rxg6 29. exd7 Rc7 30. f5 Qxd7 31. Bf4 Rc8 32. Be5+ Kg8 33. Qf3, and White is better.
26. Qh3 h5
Or 26...Be7? 27. Qxh6+ Kg8 28. Qh7#, checkmate.
27. exd6 Ra7 28. Be6 Nf6 29. f5 Qxd6 30. Bf4 Qd8
After 30...Qe7 31. Be5 Kh7 32. Nd2 Rg8 33. Nf3 Ng4 34. Bf4 Qf6 35. Bxf7Qxf7 36. Ng5+ Rxg5 37. Bxg5 White has an extra pawn and a clear advantage.
31. Be5 Bg8
Or 31...Kh7 32. Nd2 Rg8 33. Nf3 Qe7 34. Nh4 Rg5 35. Ng6 Qd8 36. Bf4 Rg4 37. Ne5.
32. Qxh5+ Rh7 33. Qg5 Qe7 34. Nc1 Qg7 35. Qxg7+
35. Qf4 is playable too.
35...Rxg7 36. Nd3 Rg4








   
37. Nf4
And White wins.
37...Kh7 38. h3 Rg3 39. Ng6 Rxh3+ 40. Kg2
Black resigned. 1-0










Move
   

Hou, Yifan (2673) - Navara, David (2730) [B12]
Tata Steel Masters/Wijk aan Zee (4) 2016

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Nd7 6. O-O Bg6 7. Nbd2 Nh6 8. Nb3 Nf5 9. Bd2 Be7 10. g4 Nh4 11. Nxh4 Bxh4 12. f4 f5 13. c4 a5 14. a4 O-O 15. g5 h6 16. gxh6 gxh6 17. Kh1 Kh7 18. cxd5 cxd5 19. Rc1 b6 20. Rc6 Rc8 21. Rxe6 Bf7 22. Rd6 Be7 23. Bd3 Bxd6 24. Bxf5+ Kh8 25. Qg4 Rc7 26. Qh3 h5 27. exd6 Ra7 28. Be6 Nf6 29. f5 Qxd6 30. Bf4 Qd8 31. Be5 Bg8 32. Qxh5+ Rh7 33. Qg5 Qe7 34. Nc1 Qg7 35. Qxg7+ Rxg7 36. Nd3 Rg4 37. Nf4 Kh7 38. h3 Rg3 39. Ng6 Rxh3+ 40. Kg2 1-0


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© 2016 Boris Schipkov