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Yifan Hou vs Nana Dzagnidze
FIDE Women's Grand Prix Khanty - Mansiysk (2014), Khanty-Mansiysk RUS, rd 3, Apr-11
Sicilian Defense: Kan. Maroczy Bind Reti Variation (B41)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
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Apr-11-14  DrAttitude: Great Attack!
Apr-11-14  DrAttitude: This attack is how to work the "Maroczy Bind" (e4 & c4 vs e6/d6) that gets transformed to <e4 & c4 vs e6/c6>. Elements: 1.Queen "lift" (Qd3 to h3), 2.Bb2, 3.f5 sacrifice. 4.Rf5 sacrifice. Powerful Bishop on e4. Incredible tactical ability. Absolutely amazing! Excellent game by GM Hou Yifan.
Apr-11-14
Premium Chessgames Member
  Rob Morrison: What a pretty game. If only chess could always be this easy.
Apr-11-14  Nerwal: <If only chess could always be this easy.>

Well, black is rarely that cooperative (in GM games, at least).

Apr-11-14
Premium Chessgames Member
  Gilmoy: After <11..Bc5+> Black's Q-side looks like a very much delayed Meran.

And after <13.e5>, so does the K-side. Kicking the Nf6 is schoolgirl QGD.

Surely Black has sharp(er) anti-Maroczy lines. Seize the day, don't just lie there like a blobfish.

Apr-11-14  xanadu: To play Sicilian against Hou Yifan it never was a good choice...
Apr-12-14  Strelets: Nice finish too: 24...Kh8 25.Bxf6+ Bxf6 26.Qxf6+ Kg8 27.exf7+, winning Black's queen via discovery.
Apr-12-14  rogl: Even better is 24...Kh8 25.Bxf6+ Bxf6 27.Qxf5 with 28.Qxh7# to follow.
Apr-13-14  ex0duz: What a game, what an attack, what a finish!

With that said, black had a horrible game, straight out of the opening it seems.

Yes, I'm a pazter compared to Nana so please forgive any mistakes in my analysis, but here i go.

I think black starts going wrong after 10 dxc6. I don't understand this move and thus i really don't like it.

Why block your own bishop behind the pawn? And also the queen on the half open c file? I know black wants to 'gain' a tempo with Rd8 after chasing the queen from the d file, but i'm also pretty sure that white wanted to move the queen anyway to the H file. Also, even before that, black again blocks his light square bishop AGAIN by playing 11.Bc5+. Now black can't even do a c5 break to free the bishop..

It can't be just me who thinks that check looks really ugly. Again, the white king probably wanted to move off that diagonal anyway to h1. Or at least white can still defend the dark squares and the knight isn't going to check on f2 anytime soon via g4 for some 'windmill-knight' discovered check tactics..

After 13.e5, i think black is in serious trouble. White should never be able to play e5 so easily, and because of the earlier 10. dxc6, e6 cannot be challenged and black could of played d6 himself stopping e5's from white.

Also, with the pawn on c6, blacks bishop no longer controls e4, which whites knight just plants itself on after playing e5.

Black then plays 17.c5 anyway(after retreating the bishop and losing the earlier tempo from the check), in order to now take the e4 knight with his LS bishop. Now after c5, blacks knight on d7 is also trapped and stuck in a horrible position and blocking the open file that the rook would have liked to be on..

And then comes 20.f5! and 21.Rxf5! That's how strong the attack is and how horrible blacks position is. Completely dominated by white, black got completely outplayed and shut down. It was like watching a GM vs an amateur..

I think even i would have done better than Nana in this game vs the world champion. Hou Yifan made it look soooooo easy, like she didn't even have to think. Black just seems to self destructed, making nearly all of whites moves pretty obvious except f5 and Rxf5(for this patzer anyway, for others i'm guessing that that's an even easier move to find right? :P).

Apr-13-14  celtrusco: Guys, after to translate the text of the post, the board go crazy ¿Why? ...Houston, we have a problem!...
Apr-13-14  mrbasso: <exoduz> Your patzer critic is not entirely justified. After 10...Bxc6 11.Be3 black has problems as well. There are (at least) 2 games in the dabases and Hou has undoubtly prepared some improvements for white (for example Bb4 12.Rac1!?). Bc5+ just blocks the c-pawn temporarily. She intended to go Be7,c5 but first forced the white King to h1. Why not? The white King on h1 is hardly better than on g1 here because after c5 the diagonal a7-g1 is blocked. No tactics there. The only big mistake I can see in this game was 19...b5??. After 19...f5 white is better but it would not be easy to win this game.
Apr-13-14  lemaire90: White to move at move 21 would make a nice Saturday or Sunday puzzle !
Apr-14-14
Premium Chessgames Member
  HeMateMe: Very sharp; white has a mate in 4. Two Bishops working together are monsters.
Apr-15-14  sofouuk: after 6.Nc3, Bb4 is the principled move. risking the curled up hedgehog against whites maroczy bind is always a bit dubious
Apr-22-14  Boris Schipkov: This game with my notes http://www.chessib.com/hou-yifan-na....
May-03-14
Premium Chessgames Member
  Gregor Samsa Mendel: It must have been very satisfying for white to pull off such an attack. Sort of the chess equivalent of Mike Tyson in his prime.
May-03-14
Premium Chessgames Member
  al wazir: White's 21. Rxf5 was obvious. I didn't guess any of the moves that followed, black's or white's.
May-03-14
Premium Chessgames Member
  Mating Net: I think most users will find this puzzle to be pretty straight forward for a Saturday. All in all, a nice mating attack.
May-03-14  morfishine: I remember this game and <21.Rxf5>. Perhaps Black improves with 21...f6

I aslo remember Hou's great play in Tata Steel 2013 lopping off a few GM heads (on the way to a 2700+ performance rating) as well as her spirited effort vs Magnus: Yifan Hou vs Carlsen, 2013

*****

May-03-14
Premium Chessgames Member
  gofer: As with all sacrifices, the question is not what will happen after it has been accepted (and an easily predictable path has been chosen), but what will happen after it has been refused.

<21 Rxf5 ...>

The rook is immune.

21 ... gxf5?
22 Bxf5 ...

22 ... Rfd8?
23 Qxh7+ Kf8
24 Qh8#

22 ... Bh4?
23 Qxh4 Nf6?
24 exf6 Rfd8
25 Qxh7+ Kf8
26 Qg7#/Qh8#

So what now? We are a pawn up with the threat of Rh5

21 ... Nxe5?
22 Bxe5

21 ... Kg7?
22 e6+

<21 ... f6>
<22 e6 ...>

22 ... gxf5?
23 Bxf5 Rf7
24 exf7+

<22 ... Ne5>
<23 Bxe5 fxe5>
<24 Rf7 Rxf7>
<25 exf7+ ...>

25 ... Kxg7
26 Qxh7+

<25 ... Kg7>
<26 Be5 ...>

In the longterm black is dead, the open f file and protected pawn on f7 mean that black will eventually have to trade R for B+P and that will be very difficult to be the trade that black gets! I am wondering if <22 Rh5> might also be an option...

~~~

Hmmm, never thought of <21 ... Qb6?!>...

May-03-14  jffun1958: Rest of it ist mate in 4:
24. ... Kh8 25. Bxf6+ Bxf6 26. Qxf5 Rd1+ 27. Rxd1 any 28. Qxh7#
May-03-14  waustad: I didn't consider Qb6 either, though I did see the sac.
May-03-14  mbvklc: I remember this game too well to get a puzzle out of this. Amazing attack nevertheless.
May-03-14  Marmot PFL: 21 Rxf5 gf5 22 Qxf5 and the game soon ends

21...f6 is a better defense, at least I don't see a fast win. Don't see any other tries than 21 Rxf5 anyway as Be4 and e5 are both attacked.

May-03-14
Premium Chessgames Member
  chrisowen: At I rook fire far be in f5 reticence ogle f5 lade,

quad one rook flow clink to fly in efface off rook f5 safe port of call try etc a fetch in a feed free at I'm afraid black went wrong to a degreed in am I sacrifice time f5 being forstalled jungled it book in am b5,

stipulate line bed in a candlearm might blow in the wind f5 had to be tried fetch a gap in sensed rook address the issue no faffer around after chin elevates right cub e4 it is hell to pay in ferry man a b5 from in on heaves heaven rook to ascent in left lane cramp a dilligent 19...b5 as the beast bade from the live f5 east to west to bide again band be effective in blood bath a feed takes place once bishop and rook undermine at whisk off fell pawn plate let's say in two minds a lint b5 all better to save a lamb like nice cycle b6 one gun against herd the e4 word cattle prod in call feint if ive got this straightoff man re-cind over straight flight in ascendancy another bird b5 it green in gauge swamp thin guess as to whether ave in f6 up f5 l0 win not so assured in family white rooks calm dispatch in sho at a6 supports b5 although free hi cage offer tile ground one fluff at ok b5 an ogre be to grind your bones right in,

flat bed e4 bishop plus am f1xf5 good girl spots straight away in ready mood f5 church of reason too for stumps up the goods to stand and deliver top h3 assist queens a circus again off side g5 trap f5 eases rook f5 in free high wire bus tore delve in park f5 mid field murky oh to pro-saic f5 murky leg up ply in light back black at sixes and sevens after mini b5 tranquil pos turns into save so cop ola direct caervix queen glean around the edge b5 limp barricade to storm fetch in a wave bishop 100% red dragon services huffle to store knight d7 and queen in a cog c7 turn the wheel f6 low in got bag be better glide at an eight ball pot down f5 you turn f1 castle believe ninety liner dot degrees light cutoff a h8 king escape flood again mind hive like a g6 threatens ai ogle queen h6 or nest in e4 f5 stir up trouble mission select interesting a free clamps again cruise aim f1 farm cedes a ground tree f5 of life cough up a rook yet zest f5 arrive fend for yourself a oomph in f1 corridor chest queen silver c7 beware out e4 of sight one feint am g8 otb edifice ogle g5 leans into hack at black tries to press the point but fails in sense again post you reap f5 castle looks to wangle gain every,

pawn e5 post's apoplectic mans desire to expand a line e6 as lane lust radical d8 and to f8 drill too free hop in bed dangles the worm a nearly done deal knight d7 and bishop e7 in surf over a f6 line yes to bind in cabs too for bullrush the show man bullseye light rook bemoans lack of room make g5 in.

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