A57: Benko/Volga Gambit
1.d4
Nf6
2.c4
c5
3.d5
White wins space
3...b5
[3...g6
4.Nd2=
]
4.Qc2
[4.cxb5
a6
5.bxa6
e6+/=
]
4...bxc4
[4...e6
5.Nc3=
]
5.e4
e6
Black threatens to win material: e6xd5
6.Bxc4
A sound move
6...Na6
[6...exd5
7.exd5
Bd6
8.Qe2+
Qe7
9.Qxe7+
Bxe7
10.Nc3=
]
7.a3
Black has a cramped position [7.Qe2
Nc7
8.Nc3
d6+/=
]
7...Qa5+
[7...exd5
8.exd5
Bd6
9.Nc3+/=
]
8.Bd2
[8.Nc3
exd5
9.exd5
Bd6+/-
]
8...Nb4
[8...Qb6
9.Nf3+/-
]
9.axb4
Sacrifices material
9...Qxa1
10.bxc5
[>=10.b5
would allow White to play on 10...Bb7
11.Bc3
exd5
12.exd5
Bxd5
13.Bxf6
gxf6
14.Bxd5+-
]
10...Rb8-/+
Black threatens to win material: Rb8xb2
11.Bc3
[11.b3!?
Qd4
12.Nc3
Bxc5
13.Be3
Qxc3+
14.Qxc3-/+
]
11...Bxc5
12.Nf3
[12.Ne2
Bb4
13.b3
Bxc3+
14.Nexc3
0-0-+
]
12...Bb4
13.Bxb4
[13.0-0
Bxc3
14.Nxc3
Rxb2
15.Qd3-+
(15.Rxa1?
may look interesting but has some grave disadvantages 15...Rxc2
16.Nb5
Nxe4-+
(16...Rxc4?!
is the less attractive alternative 17.Nd6+
Ke7
18.Nxc4
Nxe4
19.dxe6=/+
) ) ]
13...Rxb4-+
14.b3
Ba6
15.Nfd2
Bxc4
16.bxc4
[16.Nxc4
0-0
17.0-0-+
]
16...Rb2
17.Qd3
0-0
[>=17...Rxd2!?
keeps an even firmer grip 18.Kxd2
Qb2+
19.Ke1-+
]
18.0-0
Qa2
[18...e5
19.h3-+
]
19.e5
Ng4
20.Qg3
[20.Qe4
f5
(20...Rxd2?!
21.Nxd2
Qxd2
22.Qxg4=/+
) 21.Qd4
Rfb8-+
]
20...Nh6
[20...Rxd2?!
21.Nxd2
Nxh2
22.Rd1=/+
]
21.Nc3
Qa6
[21...Nf5
22.Qg4
Qa3
23.Nce4-+
]
22.Nce4
Nf5
23.Qg5
[23.Qg4
Rc8-+
]
23...h6
24.Qh5
[24.Qg4
Rc2-+
]
24...exd5
25.Qxf5
[25.cxd5
Ne7
26.d6
Ng6-+
]
25...dxe4
26.Nxe4
[26.Qxd7
Qa5
27.Nxe4
Qxe5-+
]
26...Qxc4
27.g4
[27.Nd6
cannot undo what has already been done 27...Qe6
28.Qd3
Qb3-+
]
27...Qe6
[27...Rfb8
and Black can already relax 28.g5
hxg5
29.Nxg5-+
]
28.Nc5
[28.Ra1
cannot change destiny 28...Rb5
29.Qxe6
fxe6
30.Rxa7
Rxe5-+
]
28...Qxf5
29.gxf5
Rd2
30.Ra1
Rd5
31.Nb3
[31.Nb7
does not solve anything 31...Rxe5
32.Rxa7
Rxf5-+
]
31...Rb8
[31...Rb8
32.Na5
Rc5-+
] 0-1