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Wednesday, October 17, 2012

Sicilian Kan 5.Bd3 Bc5(B42)-Sept 2012

Here is an interesting ending.

Kiuttu,R (2324) - Neiksans,A (2535) 
Sicilian Kan 5.Bd3 Bc5 6.Nb3 Ba7 7.Qg4[B42]
TCh-FIN SM 2012–13 Jyvaskyla FIN (1.1), 28.09.2012[Yip]
Black quickly enters a typical Sicilian queenless game and uses the central pawns, good king position(from ..Ke7) to get  good play.

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Bc5 6.Nb3 Ba7 7.Qg4 Nf6 8.Qg3 d6
Making a small center.[Yip] [8...Nc6 Is also possible.[Yip] 9.Nc3 0–0 10.Bg5 Bb8 11.Qf3 Ne5 Thematic centralization.[Yip] 12.Qe2 h6 13.Bh4 b5 14.0–0 Ng6 15.Bg3 e5 16.a4 b4 17.Nd5 Nxd5 18.exd5 f5 19.f3 Qg5 20.Qd2 Ba7+ 21.Bf2 Nf4 22.Bxa7 Rxa7 23.a5 Bb7 24.Kh1 Bxd5 25.Rf2 e4 26.Bf1 Bc6 27.Nd4 Raa8 28.Nxc6 dxc6 29.fxe4 fxe4 30.Re1 Rae8 31.Qe3 Kh7 32.Kg1 Qe5 33.Bc4 Rf6 34.b3 Nd5 35.Qe2 Qd4 36.Bxd5 cxd5 37.Qe3 Qxe3 38.Rxe3 d4 39.Re1 e3 40.Rfe2 Kg6 41.Rd1 Re4 42.g3 Rf5 43.Ra1 Kf6 44.Ra4 Rb5 45.Kf1 Ree5 46.Rg2 Rec5 47.Re2 Ke5 48.Kg2 Ke4 0–1 Aginian,N (2245)-Mastrovasilis,A (2539)/Korinthia GRE 2012/The Week in Chess 929]

9.Nc3 Nc6 10.Bg5 h6 11.Bd2 Nh5
Beginning with immediate queen harassment.[Yip] [11...Ne5 Thematic centralization.[Yip] 12.Be2 b5 13.f4 Ng6 14.Bf3 Rb8 15.0–0–0 0–0 16.h4 Kh8 17.h5 Ne7 18.e5 dxe5 19.fxe5 Nd7 20.Ne4 b4 21.Nd6 a5 22.Kb1 a4 23.Nc1 a3 24.b3 Ba6 25.Qe1 Qa5 26.Bf4 Nb6 27.Rh4 Nbd5 28.Bd2 Bc5 29.Nc4 Qc7 30.Nd3 Nf5 31.Nxc5 Qxc5 32.Rg4 Rfc8 33.Be2 Nde3 34.Bxe3 Nxe3 35.Nxe3 Bxe2 36.Qxe2 Qc3 37.Kc1 Qb2+ 38.Kd2 Qc3+ 39.Kc1 Qb2+ 40.Kd2 Qc3+ ½–½ Kiuttu,R (2324)-Kulaots,K (2567)/Jyvaskyla FIN 2012/The Week in Chess 936]

12.Qf3 Qh4 13.g3 Ne5 14.Qe2 Qg4 15.0–0–0 Qxe2
There is nothing to fear in the queenless game.[Yip]

16.Bxe2 Nf6 17.Be1 Ke7 Diagram 1

The king is well placed for the ending phase.[Yip]

18.h3 g5
Securing the strong Ne5.[Yip]

19.Nd4 Bd7 20.Kb1 b5
Gaining useful queenside space. The queenless phase is characterized by purposeful building moves rather than tactical play.[Yip]

21.a3 Rac8 22.f3 Nc4
The knight finds a more active location.[Yip]

Now black is slightly better.[Yip] [23.Bxc4 Chopping off the active knight is a better defence.[Yip] 23...bxc4= [Yip]]

23...Rc7 24.h4
Trying to undermine the kingside pawns.[Yip]

24...g4!? 25.f4
[25.fxg4 Ne5 26.g5!? At least keeps the g-file closed.[Yip] (26.Rd1 Nfxg4 Regains the pawn with excellent prospects on the g-file.[Yip]) 26...hxg5 (26...Nxd3 27.gxf6+ Kxf6 28.Rf1+ Kg7 29.Nf5+ exf5 30.Bxd3 fxe4 31.Nxe4 d5 32.Nf6 Be6³ Is also slightly better for black but white has gained some activity for the exchange.[Yip]) 27.Rd1 g4³ Is good for black.[Yip]]

25...Rb8 26.Nd1?
Now white is suffering.[Yip] [26.Rd1³ Is a better defence.[Yip]]

26...Nxe4 27.Bxg4 Rg8
Now there is serious pressure on the g-file.[Yip]
[27...Nc5 Is a strong alternative.[Yip] 28.Rc3 f5 29.Bh3 Ne4 30.Rd3 Rg8µ Black has a clear edge with strong play on the g-file.[Yip]]

28.Bf3 f5 Diagram 2

Black clearly dominates the ending with the centralized Ne4 and pressure on the g-file.[Yip]
[28...Nxg3 Winning the g-pawn immediately is stronger.[Yip] 29.Rg1 Bxd4! The key move. Now when Rxd4 is played, ...Nf5 will gain a tempo.[Yip] 30.Rxd4 Nf5 31.Rxg8 Nxd4 32.Be4 Rc8 33.Rxc8 Bxc8µ Black is clearly better with an extra pawn.[Yip]]

29.Ne2 Nc5 30.Rc3 e5 31.fxe5 dxe5 32.Bd5 Be6 33.Bxe6 Kxe6 34.Rf3 Rd7 35.Kc1 Rgd8
Diagram 3

36.Ndc3 Na4 37.b3 Nxc3 38.Rxc3 Rd1#

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