1.d4
Nf6
2.c4
e6
3.Nc3
Bb4
4.Nf3
d5
5.cxd5
exd5
6.Bg5
h6
7.Bh4
c5
8.dxc5
Nbd7
9.Rc1
Qa5
10.a3
This idea was first introduced by Delchev at the Olympiads
10...Bxc3+
11.Rxc3
Ne4
12.b4
Nxc3
13.Qa1
Qa4
[13...Qa6
14.Qxc3
Qg6
15.e3
Qb1+
16.Kd2
0-0
17.Rg1
a5
18.Bc4
axb4
19.axb4
Qe4
20.Bd3
Qe6
21.Nd4
1/2-1/2 (47 moves) Delchev,A (2623)-Palac,M (2561)/Khanty Mansiysk 2010/CB39_2010]
14.Qxc3
0-0
15.e3
a5
16.b5
Nxc5
17.Qxc5
Bf5N
The players were following a game played between Lahno and T. Kosintseva played at the Cap d'Agde rapid event the week before. [17...Be6
18.Qd4
Qxa3
19.Be2
Qc1+
20.Qd1
Qb2
21.0-0
a4
22.Bg3
f6
23.Nd4
Bf7
24.Bd3
a3
25.Nf5
a2
26.Qg4
g5
27.Nxh6+
Kg7
28.Qf5
Rh8
29.Nxf7
Kxf7
30.Qg6+
Ke7
31.Qg7+
1-0 (56 moves) Lahno,K (2539)-Kosintseva,T (2573)/Cap d'Agde 2010/CB43_2010]
18.Qd4
[Taking the pawn with 18.Qxd5?
and attacking the bishop is enticing, but would lead to disaster due to the white king's exposed and uncastled position. 18...Rfc8!
19.Be2
(19.Qxf5??
Rc1+
20.Ke2
Qd1#
) 19...Rc1+
20.Bd1
Bc2
21.0-0
Bxd1
22.Nd4
Rac8
23.h3
(Not 23.Qxb7?
Be2!
24.Nxe2
Rxf1+
25.Kxf1
Qd1#
) ]
18...Qxa3
19.Be2
Qb4+
20.Qxb4
axb4
21.Nd4
Ra1+!
22.Bd1
So far Kramnik's opening preparation has been flawless and his advantage is close to winning. The combination of passed pawn and wonderful lines for his rooks should be decisive.
22...Bh7??
Here is the guilty party. [Black had to play 22...Rfa8!
23.0-0
(The bishop is untouchable since 23.Nxf5?
is met with 23...b3!
24.Ne7+
Kf8
25.Kd2
(25.Nxd5
b2
26.Nc3
Rc1
27.Kd2
g5!
preparing Rd8+) 25...b2-+
) 23...Bd3
24.Re1
Rb1
25.f3
Raa1-+
]
23.Nb3
Rb1
24.Nd2
Rb2
25.Bg3
Rc8
26.Be5
Ra2
27.Nb3
Bc2
28.Bxc2
Rcxc2
29.0-0
f6
30.Bd4
Ra3
31.Na1
Rd2
32.h3
Rad3
33.Kh2
Ra3
34.b6
h5
35.Rb1
Rxf2
36.Nb3
Raa2
37.Rg1
Kh7
38.Nc5
38...Rfd2??
The wrong rook! [38...Rad2!
39.Nxb7
b3
40.Nc5
b2
41.Bxb2
Forced since the threat was (41.--
Rxg2+
42.Rxg2
Rxg2+
43.Kxg2
b1Q
) ]
39.Nxb7
b3
40.Nc5
b2
41.Rb1
1-0