English Defense A40
A — Flank openings · Family: English Defense
1. d4 b6
The English Defense is catalogued under the ECO code A40. Its main line runs 1. d4 b6.
After 2 half-moves the diagrammed position is reached and it is White to move. Material is balanced.
This encyclopedia records 7 variations inside the “English Defense” family — compare the branching lines in the tree below.
Play through the moves on the board above, explore the variations tree below — click any move of any branch — then test yourself against the engine from the position you picked.
- Position after 2 half-moves — White to move.
- Material is balanced.
- Family “English Defense” contains 7 recorded variation(s) here.
Variations tree of the English Defense family
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Variations of this family
| Name | ECO | Main line length |
|---|---|---|
| English Defense | A40 | 4 plies |
| English Defense: Eastbourne Gambit | A40 | 6 plies |
| English Defense: Hartlaub Gambit Accepted | A40 | 10 plies |
| English Defense: Hartlaub Gambit Declined | A40 | 9 plies |
| English Defense: Perrin Variation | A40 | 8 plies |
| English Defense: Poli Gambit | A40 | 10 plies |
Related puzzles
Lichess tactics played in this opening — solve them right on the board:
Related openings
Nearby ECO codes in the A — Flank openings volume — compare the move orders: