1.c4
e6
[Korchnoi has occasionally favoured the development of the bishop to g5 against the Hedgehog. Usually it goes to e3 or b2 1...c5
2.Nf3
Nf6
3.Nc3
b6
4.e4
d6
5.d4
cxd4
6.Nxd4
Bb7
7.Qe2
Nc6
8.Nxc6
Bxc6
9.Bg5
eventually drawn Kortschnoj,V (2695)-Gheorghiu,F (2605)/London 1980/MCD (59)]
2.Nc3
c5
3.Nf3
Nf6
4.d4
cxd4
5.Nxd4
a6
Opting for a Hedgehog. 5...Nc6 and 5...Bb4 are more combative but there is nothing wrong with this of course [5...Bb4
6.Bg5
Nc6
7.Rc1
Qb6
8.Bxf6
gxf6
White won Kortschnoj,V-Furman,S/Moscow 1961/URS-ch (43)]
6.Bg5
6...b6
7.e4
h6
Black later regrets this but at this stage it makes some sense to sideline the bishop slightly
8.Bh4
d6
9.Bd3
Be7
10.Rc1
Bb7
11.Qe2
Nbd7
12.Bb1
Rc8
13.Bg3
Qc7
14.0-0
14...Qc5
[Grabbing the c4 pawn in such positions is usually risky, the queen can get into trouble. In this concrete age of computer pawn grabbing it may be possible but most human players would reject it 14...Qxc4
15.Qd2
Qb4
]
15.Qd1
0-0
[With a pawn on h6 this is a little risky. Some alternatives 15...Qxc4
16.Nce2
Qb4
17.Rxc8+
Bxc8
18.Nc6
would certainly worry me; 15...Qh5!?
; 15...h5
A computer suggestion to which it wittily suggests 16.Bh4
and not then 16...g5
17.Nb3
]
16.Nb3
Qc7
[16...Qxc4??
17.Nd5
]
17.f4
Qb8
18.Qe2!
e4-e5 looms so Black prevents it but gives away a couple of big squares and suddenly his position does not look like a Hedgehog anymore
18...e5
19.fxe5
Nxe5
[19...dxe5
20.Nd5
Rfe8
]
20.Nd5
Nxd5
21.exd5
Nd4-f5 is a serious threat and the bishop on b1 is doing rather better than it's counterpart on b7
21...Bg5
This helps the white attack [21...g6
was the best defence]
22.Rc3
Rce8
23.Qc2
Ng6
[23...g6
24.h4
Bd8
25.h5
]
24.h4
Be3+
[Black is lost already h4-h5 is too strong 24...Be3+
25.Kh2
h5
26.Rxf7
Rxf7
27.Qxg6
Rf6
28.Qh7+
Kf7
29.Qxh5+
Kg8
30.Bh7+
Kf8
31.Bg6
; 24...Be3+
25.Kh2
f5
26.Rf3
Bc5
27.Nxc5
bxc5
28.Rxf5
] 1-0