1.d4
d5
2.Nf3
Nf6
3.e3
e6
4.Bd3
c5
5.b3
The Colle-Zukertort system
5...Nc6
6.Bb2
Be7
7.Nbd2
a6
8.0-0
b5?
[8...0-0
]
9.c4
[9.Ne5
Bb7
10.Nxc6
Bxc6
11.dxc5
Bxc5
12.Nf3
0-0
13.Ne5
Bb7
]
9...bxc4
10.bxc4
Rb8?+/-
11.Qc1?
[>=11.Rb1
]
11...cxd4
12.exd4
0-0=
13.Ne5
Nxe5
14.dxe5
Ne8?
[>=14...Nd7=
]
15.Qc2
g6
[=15...f5
16.exf6
Nxf6
]
16.Rab1
dxc4
[>=16...Nc7
]
17.Nxc4
Bb7
18.Rfd1
Qc7
19.Nd6?=
Qxc2
[19...Bd5
]
20.Bxc2
Bd5=
21.Ba3
Rxb1
[21...Nxd6
22.exd6
Rxb1
23.Rxb1
Bf6
24.Rb6
Bxa2
25.Rxa6
Bd5=
]
22.Rxb1
Ng7
23.f4
Ra8
24.Rb2
Bd8
25.Be4
Bxe4
26.Nxe4
Rc8
27.Rb7
Nf5
28.Nd6
Rc7??+-
[28...Nxd6
29.exd6
f6+/-
]
29.Rb8
Rd7
30.Ne4??
[30.Nb7!
Black can resign 30...Rd3
(30...Rd1+
31.Kf2
Rd2+
32.Ke1
Rxa2
33.Rxd8+
Kg7
34.Bf8+
Kg8
35.Bh6#
) 31.Rxd8+
Rxd8
32.Nxd8
]
30...Kg7
31.Nd6
Nd4
32.Ne8+
Kh6
33.Bf8+
Kh5
34.Kf2
g5
35.g3
gxf4
36.gxf4
Kg6
37.Bd6
Nf5=/+
38.Ra8
Bb6+
39.Kf3=
Black dropped a rook in a time scramble. 1-0