1.d4
Nf6
2.c4
e6
3.Nc3
d5
The Queen's Gambit Declined
4.Bg5
Nbd7
5.Nf3
c6
Here in the Cambridge Springs, Black plays Nbd7 but refrains from playing Be7
6.e4
e3 is the main line
6...dxe4
Making sure that the e-pawn does not reach e5
7.Nxe4
Qb6
Increasiong the tention. Bb4+ invites Nc3 and Bd2
8.Bd3
Offering the b2-pawn for rapid development
8...Qxb2
[8...Nxe4
9.Bxe4
Qb4+
10.Nd2
Qxb2
Spielmann-Euwe, 1932]
9.0-0
Nxe4
10.Bxe4
Nf6
Typical after an exchange on e4
11.Bd3
Qb6
Back to the safety of b6-c7-d8
12.Re1
Be7
13.Qc2
Idea Bxf6 and Bxh7
13...h6
14.Bd2
c5
striking while d4-d5 is impossible
15.Bc3
cxd4
16.Nxd4
Black is up a pawn and white has the isolated c-pawn, but white also has a large lead in the development and black remains uncastled and saddled with a bad Bc8
16...0-0
17.Nf5
Qd8
[17...exf5
18.Rxe7
]
18.Nxe7+
Qxe7
White emerges with the two bishops in an open board
19.Rab1
Rd8
20.Re3
Idea rook swing to g3 or h3
20...b6
21.Qe2
Bb7
22.Rg3
Ne8
Defending g7
23.Re1
White's lead in development is pronounced
23...Kf8
Diagram
24.Qb2
three attacks on g7
24...f6
weaknesses now emerge on e6 and g6
25.Bb4
Nd6
26.Rge3
Two attacks on the weakened e6-pawn
26...Kf7
27.f4
fixing the e6-weakness
27...Qd7
28.Qe2
three attacks on e6
28...Re8
29.Qh5+
Exploiting the g6-weakness
29...Kg8
30.Qg6
Into the entry square; threat Qh7 and Bg6
30...f5
White can now capture on e6 or
31.Bxd6
Qxd6
32.Bxf5
Qxf4
33.Qh7+
Kf8
34.Bg6
Threat Qh8 and Qxg7
34...Qd4
35.Bxe8
Rxe8
36.Kh1
Qf6
1-0