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Alexander Onischuk vs Sergey Karjakin
Aerosvit (2008), Foros UKR, rd 3, Jun-10
Semi-Slav Defense: Meran. Wade Variation (D47)  ·  1/2-1/2

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Jun-10-08  Hesam7: I always thought R+PP vs N+N would mean a huge advantage for the side with the rook. Onischuk's K-side plan (h3-g4) seems inadequate, instead he could have at least tried pushing his passed pawns: 33.Bxf6 Kxf6 (33...Nxf6 34.Ra7+ is worse) 34.b4!


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Jun-10-08  Augalv: Onischuk Alexander - Karjakin Sergey, Aerosvit 2008, 3rd Round.

1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.Nf3 e6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 Bb7

8..Bd6 check the Svidler - Karjakin, Grand Prix Baku.

9.O-O a6 10.e4 c5 11.d5 Qc7 12.dxe6 fxe6 13.Bc2 c4 14.Qe2 Bd6 15.Nd4 Nc5

Main move, other known moves are 15..Nf8 and 15..Bxh2+.

16.f4 e5 17.Ndxb5 axb5 18.Nxb5 Qb6 19.Nxd6+ Qxd6 20.fxe5 Qxe5

Everything is theory so far...

21.Rf5 Qe7 22.Qxc4 Ncd7 23.Bd2 Rc8 24.Qb3 Rxc2 25.Qxc2 Bxe4 26.Qc8+ Kf7 27.Qc4+ Qe6 28. Qxe6+ Kxe6 29.Rg5 g6 ( diagram )


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Still theory...:)

30.Re1

30.Bc3 is older try.

30..Rc8 31.Bc3 Kf7 32.Ra5 Bf5

I would prefer White here.Pawns can be very dangerous.Sure, two light pieces can create play but I think that with precise play White can make serious problems to his opponent.Somehow it seems that Onischuk was not into killer mood today.

33.h3

Good move to throw in, it controls g4 keeping Rd1 ideas free of obstacles like Bg4.33.a4 seriously comes into consideration 33..Rc4 34.Ra7 Ne4 ( 34..Nd5 35.Be5 Ne7 is too artificial ) 35.Bh8 Ke7 this is critical.White has better chances but it's hard to be precise how much better.

33..h5 ( diagram )


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34.Bb4?

Soft move.34.a4 Rc4 35.Ra7 Ne4 36.Bh8 Ke7 37.Rd1! This is main crossroad here, most lines are between slight and serious pull for White.Or I'm missing something, I don't know.

34..Ne4 35.g4

35.a4 Rc2 36.g4 hxg4 37.hxg4 Rc4 is similar to game.35.Rb5! is unusually strong 35..Rc4 36.a4 with better chances.

35..hxg4 36.hxg4 Rc4 37.gxf5 Rxb4 38.Ra7 Nef6 39.fxg6+ Kxg6

Kingside is cleared, this is close to equal.

40.Re2 Nc5 41.Rg2+ Kf5 42.Ra5 Nfe4 43.Rc2 Kf4 44.Raxc5 ½-½

Extracted from blog about Sergey Karjakin

http://www.karjakin.blogspot.com/

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