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English Opening: Anglo-Indian Defense, King's Indian Formation
c4 Nf6 Nf3 g6Black defense. The named position is usually reached after c4 Nf6 2. Nf3 g6 and tends to produce flexible practical play.
Theory 46
Games 223K
Family English Opening
Opening Profile
Sharpness44
Solidity66
Counterplay78
BeginnerPlayable, but easier once the basic tactical and structural themes of the opening family already make sense.
ClubVery practical at club level because opponents often misjudge the imbalances and timing.
AdvancedMore of a practical repertoire branch than a lifetime theory project, but still worth knowing well.
Black defense. The named position is usually reached after c4 Nf6 2. Nf3 g6 and tends to produce flexible practical play.
Variations
White's Plans
Use the first moves to ask Black whether the setup can hold its structure once development accelerates.
Improve the worst-placed piece first so the opening edge turns into a usable middlegame advantage.
Black's Plans
Coordinate the position first, then choose the central or wing break that makes White's setup uncomfortable.
Use the long diagonal as a real source of pressure rather than a decorative setup move.
Accept a little structural risk if it buys piece activity and practical initiative.
Win Rate Across All Games
47.2% White6.2% Draw46.6% Black
223K
Games
46
Theory Depth
4
Main Line Ply
Typical Structures
Fianchetto-based structure where the long diagonal does a large share of the strategic work.
The center often stays fluid so one side can challenge it later rather than fixing it immediately.
Key Motifs
Long-diagonal tactics against the center or king once the pawn shield loosens.
Counterblows in the center just after the opponent commits to a flank plan.
Long-diagonal fights where one side's center becomes the long-term target.
Balanced middlegames where transpositions and move-order nuance matter more than memorized traps.
Key Lines
English Opening: Agincourt DefenseNamed continuation in the same opening family.
c4 e6English Opening: Anglo-Dutch DefenseNamed continuation in the same opening family.
c4 f5English Opening: Anglo-Indian DefenseNamed continuation in the same opening family.
c4 Nf6English Opening: Anglo-Lithuanian VariationNamed continuation in the same opening family.
c4 Nc6What Usually Goes Wrong
If the central break never lands on time, the position can become strategically unpleasant very quickly.
The named entry arrives early, so opponents may reach the same structure from a different move order.
Move Order & Transpositions
Known as the Anglo-Indian Defense, King's Indian Formation branch inside the English Opening family.
This named entry appears early, so many practical games continue by transposition after the listed move order.
This page combines catalog reference data with ChessRef study notes rather than a fully expanded guide.
How to Prepare
Memorize the first 4 ply and the first branching decision, not just the catalog name.
Review the related openings and transpositions so alternate move orders do not hide the same structure from you.
Collect a few of your own games in the line and annotate the middlegame plans before adding more theory.
It stops fitting if you want Black positions that create instant imbalance without a patient middlegame plan.
See This In Your Games
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