Stonewall Attack

The Stonewall Attack is a chess opening characterized by White (generally) playing their pawns to d4 and e3, playing Bd3, Nd2, and then playing pawns to c3 and then f4; although the moves are not always played in that order (see transposition).[1] The Stonewall is a system; White heads for a very specific pawn formation, rather than trying to memorize long lines of different variations. If White puts up the Stonewall formation it is called the Stonewall Attack, regardless of how Black chooses to defend against it. When Black sets up a Stonewall formation, with pawns on c6, d5, e6 and f5, then it is a variation of the Dutch Defense. MCO-15[2] gives the following as a main line: 1.d4 d5 2.e3 Nf6 3.Bd3 c5 4.c3 Nc6 5.f4.

	a	b	c	d	e	f	g	h
8									8
7									7
6									6
5									5
4									4
3									3
2									2
1									1
	a	b	c	d	e	f	g	h

The Stonewall setup

ECO

Since the Stonewall system is used against a variety of Black defenses, the Encyclopaedia of Chess Openings (ECO) has trouble classifying it. Among the codes used are D00 (when Black has played ...d5), A45, and A03 (the code for Bird's Opening).

Example game

	a	b	c	d	e	f	g	h
8									8
7									7
6									6
5									5
4									4
3									3
2									2
1									1
	a	b	c	d	e	f	g	h

Final position after 16.g6

This sample game[3] illustrates what can happen if Black defends poorly.

1.d4 d5 2.f4 Nf6 3.e3 e6 4.Nf3 c5 5.c3 Nc6 6.Bd3 Bd6 7.0-0 0-0 8.Nbd2 b6 9.Ne5 Bb7 10.g4 Qc7 11.g5 Nd7 12.Bxh7+ Kxh7 13.Qh5+ Kg8 14.Rf3 f6 15.Rh3 fxe5 16.g6 1–0

gollark: Yes it can.

gollark: Amateur radio maybe.

gollark: I don't think any of us live close enough for avian carriers.

gollark: Actually, that seems like it would be hard and require much specialised knowledge.

gollark: I wonder if we can somehow exploit this to run APIONET at a lower level.

References

Soltis, Andrew (1993) [1987]. The Stonewall Attack (Revised 2nd ed.). Chess Digest, Inc. p. 20. ISBN 0-87568-165-4. In this book we'll consider the most common sequence: 1.d4 followed by 2.e3 and then 3.Bd3 and 4.f4 (or 3.f4 and 4.Bd3). But the Stonewall has materialized in quite a variety of sequences, including 1.f4 in the hands of Bent Larsen, Gideon Stahlberg and Harry Bird, or even 1.Nf3.
See page 511 and column no. 9.
Larry Evans (December 1981). "Stonewalling". Chess Life. pp. 34–36. Archived from the original on April 25, 2012. Retrieved 2011-10-16.CS1 maint: unfit url (link)

Bibliography

Brace, Edward (1977). "Stonewall Formation". An Illustrated Dictionary of Chess. Craftwell. ISBN 1-55521-394-4.
de Firmian, Nick (1999). Modern Chess Openings: MCO-14. Random House. ISBN 0-8129-3084-3.
Hooper, David; Whyld, Kenneth (1992). "stonewall". The Oxford Companion to Chess (2nd ed.). Oxford University Press. p. 399. ISBN 0-19-866164-9.

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[1] Soltis, Andrew (1993) [1987]. The Stonewall Attack (Revised 2nd ed.). Chess Digest, Inc. p. 20. ISBN 0-87568-165-4. In this book we'll consider the most common sequence: 1.d4 followed by 2.e3 and then 3.Bd3 and 4.f4 (or 3.f4 and 4.Bd3). But the Stonewall has materialized in quite a variety of sequences, including 1.f4 in the hands of Bent Larsen, Gideon Stahlberg and Harry Bird, or even 1.Nf3.

[2] See page 511 and column no. 9.

[evans-3] Larry Evans (December 1981). "Stonewalling". Chess Life. pp. 34–36. Archived from the original on April 25, 2012. Retrieved 2011-10-16.CS1 maint: unfit url (link)