1.c4
Nf6
2.Nf3
e6
3.g3
d5
4.Bg2
c5
5.cxd5
exd5
6.d4
Nc6
7.0-0
Be7
8.Nc3
0-0
9.Bg5
c4
10.Ne5
Be6
11.Nxc6
[ Three years earlier Pfleger had beaten "Polu" in the same line. That game continued 11.e3
Nd7=
12.Bxe7
Nxe7
13.b3
Nxe5
14.dxe5
Qa5
15.Qe1
Rfd8
16.bxc4
dxc4
17.f4
Rd3
18.Ne4
Qa3
19.Ng5
Rxe3
20.Qb1
Bf5
21.Qxb7
Rf8
22.Rae1
Rxe1
23.Rxe1
c3
24.Qf3
Rc8
25.g4
Qc5+
26.Kh1
c2
27.Rc1
Bxg4
28.Qb3
Qc4
29.Ne4
Qe2
30.Nc3
Rxc3
0-1 Polugaevsky,L-Pfleger,H/Montilla Moriles 1975/EXT 2001 (30)]
11...bxc6
12.b3
Qa5
13.Na4
Rfd8
14.e3!
[ 14.Qc2
Rac8
15.Bxf6
Bxf6
16.Nc5
Bxd4
17.Nb7
Qb6
18.Nxd8
Rxd8
19.bxc4
Bxa1
20.cxd5
is better for Black]
14...c5
15.Bxf6
gxf6
16.dxc5
Bxc5
17.Qh5
Rac8
Polugaevsky had prepared all of this carefully and actually used it again successfully in the same tournament against the Canadian Lawrence Day.
18.Rfd1
Bf8
19.Rac1
Qb4
20.Bxd5?
[ 20.Nc3!
cxb3
21.Nxd5
Rxd5
22.Bxd5
Rxc1
23.Rxc1
b2!
( 23...Qb5?
24.e4
bxa2
25.Ra1+-
) 24.Rb1
Qc5
25.e4
Qc1+
26.Qd1
Ba3
27.Bxe6
fxe6
28.Kg2
with the idea Qd3, f4, Kh3+/= [Polugaevsky]]
20...Rxd5!
21.Rxd5
cxb3
22.Rxc8
Bxc8
23.axb3?
[ 23.Qd1
Qxa4
24.axb3
Qc6
25.Rd8
f5
-/+ would offer more resistance.]
23...Bg4!
24.Qh4
[ or 24.Rg5+
fxg5
25.Qxg5+
Bg7
26.Qd8+
Qf8
and Black is winning.]
24...Qe1+
25.Kg2
Be2
26.g4
Qf1+
27.Kg3
Qg1+
28.Kf4
Qg2
29.Qxf6
Qxf2+
30.Ke5
Qxe3+
31.Kf5
Qf3+
32.Kg5
Qe3+
33.Kf5
Bd3+
34.Rxd3
Qxd3+
35.Kg5
Qe3+
36.Kh5
Be7
0-1