English Opening, Agincourt Defense

The Agincourt Defense begins when White advances the c-pawn to c4 and Black replies by moving the e-pawn to e6. Black's immediate idea is to prepare ...d5 and contest the center without revealing the complete piece setup.

This is a broad opening family rather than one fixed formation. Black may still develop the knight to f6, play ...c5, or build a queen's-pawn structure. White can choose Nf3, prepare a bishop development to g2, or advance the d-pawn. When different move orders reach the same position, the result is called a transposition .

English Opening, Agincourt Defense: canonical line

1

2

3

4

5

6

7

h8

g

f

e

d

c

b

a

Start

c4

e6

Nf3

d5

The line begins from the starting position

The board replays every move in the notation maintained by the article, without adding continuations.

A useful comparison is the Anglo-Indian Defense. There Black answers with ...Nf6 first; in the Agincourt, ...e6 is the defining commitment. The next central decision matters more than the label: the game may open quickly with d4 and ...d5, or remain a flexible English Opening.