1.Nf3
A perfectly reasonable opening move, often with the idea of a kingside fianchetto, d3, and a delayed e4
1...Nf6
Awaiting events. ...d5 and ...c5 are perfectly reasonable alternatives
2.g3
Here's the fianchetto, with the idea of placing the Bf1 on the long diagonal
2...b6
Required now if you want to play a Hedgehog
3.Bg2
Bb7
Another forced move pair.
4.0-0
e6
or ...c5 in order to make sure that white's d4 meets the pawn exchange.
5.c4
c5
6.d4
cxd4
again, required, to bring a piece to d4. Now Nbd7 will have access to both c5 and e5
7.Qxd4
Avoiding the exchange of bishops after Nxd4
7...d6
Not the natural Nc6 because the knight there would block the Bb7 and the action later down the c-file.
8.Nc3
a6
Completing the Hedgehog pawn structure. The pawns on e6 and a6 prevent the white knights from harrassing the black queen when it posts on c7
9.Rd1
Qc7
The usual move, with the idea of Nbd7, Be7, Rc8, and 0-0
10.b3
Defending the c-pawn against the coming threat of Rc8
10...Nbd7
The normal Hedgehog square. The Qd4 is poorly posted and will likelt repost without black having to play Nc6
11.Bb2
Be7
12.e4
A position that could be reached from many different openings, including the Sicilian and Queen's Indian.
12...0-0
13.Qe3
Rfe8
Typical placement, anticipating Bf8 and a ...d5 pawn break.
14.Nd4
Bf8
15.Rac1
Rad8
Or Rac8
16.h3
g6
Typical in the Hedgehog, a late kingside fianchetto once the d6-pawn is secure
17.Kh2
Bg7
18.Qe2
Qb8
Also typical, often with the idea of Qa8 putting more pressure on the white e4-pawn
19.Qc2
Rc8
20.Qd2
Nc5
Three attacks on e4
21.Re1
Three defenses
21...Qa8
Four attacks. Most players would crumble under such pressure.
22.f3
The new structure weakens the g3-pawn and locks in the Bg2
22...Qb8
TRansferring back to pressure g3
23.Rcd1
Ba8
Again typical, idea b6-b5
24.Nde2
Two attacks on d6
24...Red8
25.Nd4
White would be content with the a draw.
25...Ncd7
Suba has used the Nc5 to gain the f2-f3 concession... He now transfers the Nc5-d7-e5
26.Qf2
Ne5
27.Qe2
Avoiding f3-f4, again weakening e4
27...Nc6
28.Nc2
Nh5
Looks bad, but the simple powerful threat is ...d6-d5 and Qxg3
29.f4
Preventing ...d5, but now black has
29...b5
The typical pawn break in the Hedgehog
30.cxb5
axb5
31.Bf3
[31.Qxb5
Bxc3
32.Qxb8
Nxb8
; 31.Nxb5
Bxb2
]
31...Ne7
idea Bxc3
32.Nd4
b4
33.Na4
Nf6
34.e5
Usually unplayable in the Hedgehog
34...dxe5
35.fxe5
Bxf3
36.Nxf3
Nfd5
Diagram And Black emerges with a powerful position, notably an unassailable central Nd5 and the better dark-squared bishop
37.Rc1
Bh6
38.Rc4
Ne3
Knight to the 6th!
39.Rcc1
N7d5
40.Rxc8
Rxc8
threat Rc2
41.Qf2
Nf5
42.Re2
Be3
43.Qe1
Qb5
44.Nd2
Qd3
another nice entry square.
45.Nf1
Rc2-+
46.Rg2
Rxg2+
47.Kxg2
Qe4+
0-1