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13th Unive Chess Tournament 2009 (5)

Brief chance for Ivanchuk to take the lead

Vassily Ivanchuk lost the chance to take the lead by allowing Sergei Tiviakov to squirm out after the first time control.

There has still only been one decisive game in the tournament after five of the six rounds. As befits the top seed Ivanchuk has played the most interesting chess. He might have had an escape against Judit Polgar through pressing too hard but he has also missed chances.

Against Tiviakov he had an extremely pleasant position but allowed his opponent a second chance to make an exchange sacrifice that probably should have come earlier after which Ivanchuk had no chances for a win.

Ivanchuk,V (2756) - Tiviakov,S (2670) [B01]
Unive Crown Hoogeveen NED (5), 23.10.2009

1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd6 4.d4 Nf6 5.Nf3 c6 6.Ne5 Nbd7 7.Bf4 Nd5 8.Nxd5 Qxd5 9.Nf3 Nb6 10.Be2 Bf5 11.c3 e6 12.0-0 Be7 13.a4

[13.Ne5 0-0 14.Re1 Qd8 15.Qb3 Qd5 1/2-1/2 Pikula,D (2570)-Tiviakov,S (2684)/Budva MNE 2009/The Week in Chess 748]

13...a5 14.Bc7 Bd8 15.Bg3 Qd7 16.Qb3 Bc7 17.Rfe1 0-0 18.Rad1 Nd5 19.Ne5 Qc8 20.Rd2 Rd8 21.Bh5 Bg6 22.Bg4 Re8 23.Bf3 Nf6 24.c4 Bd6 25.c5 Bxe5 26.Bxe5 Nd5 27.h4 h6 28.h5 Bf5 29.Rde2 Rd8 30.Bd6 Nf6 31.Qe3 Rd7 32.Qf4 Qd8 33.Qg3 Ne8 34.Be5 Qg5 35.Qh2 Rad8 36.Re3 Qe7 37.g4 Bh7 38.Bd1 Kf8 39.Bb3 Qg5 40.Qg3 Nf6 41.f3 Nd5?!

[41...Rxd4 42.Bxd4 Rxd4]

42.Bxd5 Rxd5 43.f4 Qe7 44.g5 hxg5?! 45.fxg5 Bf5

Sergei Tiviakov

___r_k__
_p__qpp_
__p_p___
p_PrBbPP
P__P____
____R_Q_
_P______
____R_K_

Vassily Ivanchuk

Position after 45...Bf5

46.h6?!

[46.Rf3! Preventing the exchange sacrifice under favourable circumstances should do it. 46...Rxd4 47.Bxd4 Rxd4 48.Rxf5]

46...Rxd4!

Forced.

47.Bxd4 Rxd4 48.Re5 Bg6 49.Qh3 gxh6 50.Qxh6+ Kg8

White now has nothing.

51.Rxe6 fxe6 52.Qxg6+ Qg7 53.Qe8+ Qf8 54.Qxe6+ Qf7 55.Qc8+ Kg7 56.Qh3 Qg6 57.Kh1 Rd5 58.Re7+ Kf8 59.Re1 Kg7 1/2-1/2

Anish Giri and Judit Polgar played out a balanced draw without too much excitement.

Giri,A (2552) - Polgar,Ju (2687) [E15]
Unive Crown Hoogeveen NED (5), 23.10.2009

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.Qc2 c5 6.d5 exd5 7.cxd5 Bb7 8.Bg2 Nxd5 9.0-0 Be7 10.Rd1 Nc6 11.Qf5 Nf6 12.e4 g6 13.Qf4 0-0 14.e5 Nh5 15.Qg4 Ng7

[15...Qc8 16.Nc3 d5 17.Qxc8 Rfxc8 18.Nxd5 Rd8 19.Nxe7+ Nxe7 20.Bg5 Kf8 21.Rd6 Rxd6 22.exd6 Ng8 23.g4 Nhf6 24.Rd1 Rd8 25.Ne5 Bxg2 26.Kxg2 h6 27.Bxf6 Nxf6 28.d7 g5 29.f4 Kg7 30.fxg5 hxg5 31.Kf3 1-0 Jorczik,J (2352)-Kazimova,N (2218)/Pardubice CZE 2009/The Week in Chess 768]

16.Nc3 Ne6 17.Be3 Rb8 18.Nd5 Nb4 19.Nxe7+ Qxe7 20.Rd2 h5 21.Qc4 b5 22.Qe2 c4 23.Rad1 Nd3 24.Ne1 Bxg2 25.Kxg2 Nxe1+ 26.Qxe1 Rb7 27.a3 b4 28.axb4 Qxb4 29.Qe2 Rc7 30.Qf3 Qb7 31.Qxb7 Rxb7 32.Ra1 Rfb8 33.Rc2 Rxb2 34.Rxc4 R8b5 35.Rxa7 Rxe5 36.Bc1 Rb8 1/2-1/2

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