*** Welcome to piglix ***

Queen's Gambit Declined, Cambridge Springs Defense

Cambridge Springs Defense
a b c d e f g h
8
Chessboard480.svg
a8 black rook
c8 black bishop
e8 black king
f8 black bishop
h8 black rook
a7 black pawn
b7 black pawn
d7 black knight
f7 black pawn
g7 black pawn
h7 black pawn
c6 black pawn
e6 black pawn
f6 black knight
a5 black queen
d5 black pawn
g5 white bishop
c4 white pawn
d4 white pawn
c3 white knight
e3 white pawn
f3 white knight
a2 white pawn
b2 white pawn
f2 white pawn
g2 white pawn
h2 white pawn
a1 white rook
d1 white queen
e1 white king
f1 white bishop
h1 white rook
8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
a b c d e f g h
Moves 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.Nf3 c6 6.e3 Qa5
ECO D52
Origin First used 1892
Named after 1904 tournament, Cambridge Springs, Pennsylvania
Parent Queen's Gambit Declined
Synonym(s) Pillsbury Variation

In chess, the Cambridge Springs Defense (or less commonly, the Pillsbury Variation) is a variation of the Queen's Gambit Declined and begins with the moves:

Black breaks the pin on the h4–d8 diagonal and forms a pin of his own on the c3 knight (exploiting the absence of the White's queen bishop from the queenside). If Black later plays dxc4, there may be threats against the g5-bishop. Note that 5.cxd5 cannot win a pawn because of the Elephant Trap. The main line continues 7.Nd2 Bb4 with the threat of ...Ne4 and pressure along the a5–e1 diagonal.

The Encyclopaedia of Chess Openings (ECO) code is D52.


The first recorded use of the Cambridge Springs was by Emanuel Lasker in 1892. The name derives from a 1904 tournament in Cambridge Springs, Pennsylvania in which the defense was used several times. Practitioners of the opening have included Efim Bogoljubov, Vasily Smyslov, Garry Kasparov, and Magnus Carlsen.

The line remains popular among amateurs because there are several traps White must avoid. For example, 7.Nd2 Bb4 8.Qc2 0-0 9.Bd3?? dxc4! (threatening ...Qxg5) 10.Bxf6 cxd3! (a zwischenzug) 11.Qxd3 Nxf6 and Black has won a piece.

White has several choices on his seventh move. The most common are:

Bibliography


...
Wikipedia

...