Lê Quang Liêm thắng lợi tại giải Moscow Open 2010

Game is commented by IM Vladimir Barsky

8th round

The young Vietnamese chessplayer very technical overplayed the leader and has headed the tournament race in the company with his coach Evgenie Bareev and grandmaster Konstantin Chernyshov.

Le Quang Liem – Sasikiran Krishnan
Grunfeld defense

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 c5 8.Ne2 Nc6 9.Be3 0-0 10.0-0 Qc7 11.Rb1 Bd7 12.Bd3 Rfd8

13.h3
Recently Black deal with some trouble after this move. Earlier against Sasikiran was played 13.Qd2, and after 13 … Be8 14.Rfc1 e6 15.Bh6 Bh8 16.Qg5 Qd6 17.Rxb7 cxd4 18.cxd4 Nxd4 19.Nxd4 Qxd4 20.Qe7 Bg7 21.Bxg7 Kxg7 Black successfully solved problems, Sundararajan - Sasikiran, Calcutta 2008.

13...e6
Novelty. After 13...Be8 14.d5 Ne5 15.c4, for example: 15…e6 (15...a6 16.Nc1 Rab8 17.f4 Nd7 18.Qc2 Nb6 19.Ne2 Na4 20.e5 b5 21.Nc3 Nxc3 22.Qxc3 e6 23.Be4 exd5 24.cxd5 c4 25.Bd4± Porper – Mikhalevski, Edmonton 2009) 16.Nf4 Rab8 17.Be2 Rd6 18.Qc2 Ra6 19.Rb5 Bf8 20.a4!? Topalov – Svidler, Nanjing 2008. Both games White won, therefore there is nothing surprising that the Indian grandmaster tries the other way.

14.Bg5 Re8 15.Qc1 cxd4 16.cxd4

16...Qd6?!
Sasikiran realizes the same maneuver, as in mentioned game with Sundararajan, however in the given edition it appears much less effective. Was worthy 16... Rac8 though here again after 17.Qe3 a6 18.Rfc1 White keep a pressure.

17.Rxb7 Rab8
It is not so simple to take back a pawn. Badly 17...Bxd4? 18.Bb5; 17...Nxd4 18.Nxd4 Rac8!? (Black have difficulties after 18...Qxd4 19.Rd1 Ba4 20.Bc2 Qc4 21.Bxa4 Qxa4 22.Rdd7 or 18...Bxd4 19.Qc7 Qxc7 20.Rxc7 Bc8 21.Bb5 Bb6 22.Rcc1 Rf8 23.Be7) 19.Qf4! e5 20.Qd2 exd4 21.Bf4 Qe6 22.Rxa7 White is better.
The best way for Black is 17...Bc8 18.Rb3 Nxd4, and here after 19.Nxd4 Bxd4 20.Bb5 Bd7 21.e5 Bxe5 22.Rd1 Rac8 23.Rxd6 Rxc1+ 24.Bxc1 Bxb5 25.Rd2 with mutual chances.

18.Rxb8 Rxb8 19.Qc5! Qxc5 20.dxc5 h6?!
Was worthy immediate 20... Rb2.

21.Be3 Rb2 22.Rd1

22...Nb4?
This attempt to complicate the game leads to irreversible consequences. It was necessary to take away a pawn - 22... Rxa2. After 23.Bc4 Ra4 24.Bb5 Rb4 25.Rxd7 Rxb5 26.g3 advantage, of course, on the White side, but Black can defend.

23.Bc4 Bc6 24.a3!
Possible 24.f3 Rc2 25.Rc1, but the move in the game even stronger.

24...Nc2 25.Rd8+ Kh7 26.Bc1 Rb7 27.Bd3! Ne1 28.Ba6 Rb1 29.Kf1 Nc2 30.Bd3 Bb5!?

31.c6!
Badly is 31.Bxc2? Rxc1+. And now the pawn slips in Queens.

31...Bxd3 32.Rxd3 Rb6 33.c7 Rc6 34.Rd7
More precisely is 34.Bf4.

34...Nd4
It was possible to resist longer by 34...Be5 35.Bf4 Rxc7 36.Rxc7 Bxc7 37.Bxc7 Nxa3, but Black have a piece less.

35.Bf4 Nxe2 36.Kxe2 e5 37.Be3

Black resigns.