1.d4
Nf6
2.c4
e6
3.Nc3
d5
4.Nf3
Be7
5.Bg5
Nbd7
6.e3
0-0
7.Rc1
c6
8.Bd3
a6
9.cxd5
exd5
10.Qc2
Re8
11.0-0
Nf8
12.Ne5
Ng4
13.Bxe7
Qxe7
14.Nxg4
Bxg4
15.Ne2
[15.Na4
had been played in Horowitz-Kashdan, US Championship 1938. These days White usually plays a rook to e1.]
15...Rad8
16.Ng3
Rd6
17.Rfe1
Qh4
18.b4
Rh6
19.Nf1?
[Too passive. 19.h3
seems safe enough for White, since 19...Bxh3?!
20.gxh3
Qxh3
21.Bf5
Qh2+
22.Kf1
doesn't lead anywhere.]
19...Ne6
20.a4
[Instructional manuals sometimes advise us not to weaken our pawns in front of our castled kings but Black now demonstrates that the pawns can be disrupted via a direct attack here.] DIAGRAM
20...Bf3!
21.Be2
[21.gxf3
Ng5
22.Bf5
is White's best chance: (22.Qe2
Qh3!
wins) 22...Nxf3+
23.Kg2
Nxh2
24.f4!?
g6
seems to win for Black]
21...Be4
22.Qd2
Ng5
23.f3
[23.Bd1
Bxg2!
24.Kxg2
Ree6!
gives Black an unstoppable attack.]
23...Nh3+!
24.gxh3
Rg6+
25.Ng3
Rxg3+!
26.hxg3
Qxg3+
27.Kf1
Qxh3+
28.Kg1
Qg3+
[28...Re6
29.Bf1
Rg6+
30.Bg2
Bxf3
is another win.]
29.Kf1
Qh2
30.fxe4
Re6
31.Qd1
dxe4
32.Rc2
Qh3+
[32...Qg3
is simpler.]
33.Kg1
Rg6+
34.Bg4
Rxg4+
35.Qxg4
Qxg4+
36.Rg2
Qf5
37.Rb2
h6
38.b5
c5
39.Rf2
Qg5+
40.Rg2
Qd5
0-1