Notes by John Collins.
1.d4
d5
2.Nf3
Nf6
3.c4
c6
4.Nc3
dxc4
5.a4
Nd5
I have played Janos many times, and I often cannot guess his next move in the opening. Perhaps because of this he often gets good positions against me - not this time! I was surprised to find that this move has been played before, by another Hungarian called Polgar (not one of the famous sisters).
6.e4
Nxc3
7.bxc3
Be6
This was also played by the mysterious Polgar; White continued Rb1 and eventually won.
8.Ng5
This looks crude, but the idea is to advance the f-pawn immediately.
8...Qd7
9.f4
Bg4
10.Be2
Bxe2
11.Qxe2
b5
12.0-0
h6
13.Nf3
Qg4?
This is a terrible move; he has to move the Q again to develop his N, but this loses a lot of time, and the extra pawn.
14.Qb2
Qd7
15.Ne5
Qb7
16.Nxc4
e6
17.f5!
Now Black can never get safely castled.
17...exf5
18.Rxf5
Nd7
19.axb5
c5
20.Qf2
Qxb5
[If Black plays 20...Qxe4
then 21.Ba3
looks winning. ]
21.Ne5
Nf6
[If Black plays 21...Nxe5
then 22.Rxe5+
followed by Ba3.]
22.Qa2
Qb7
23.Rb1
Qc7
24.Qa4+
Kd8
25.Bf4
At last my Q-side is developed! Now simplification leads to a clear win.
25...Bd6
26.Nxf7+
Qxf7
27.Bxd6
cxd4
28.Qa5+
Black loses his Q, is mated (or both). [Fritz gives 28.Qa5+
Ke8
29.Re5+
Qe6
30.Rxe6+
Kf7
31.Rb7+
Kg8
32.Qc7
Nh5
33.Qf7+
Kh7
34.Bf4
Nxf4
35.Qxg7#
as the longest mate.] 1-0