Chess Openings Lab
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English Opening: Anglo-Indian Defense, Hedgehog System

The Hedgehog System here is 2.Nc3 e6, keeping Black's ...b6, ...c5 and ...d6 setup in reserve. White can grab space at once with 3.e4, which threatens e5 against the f6 knight, or steer into a Nimzo-Indian with d4.

Moves
1.c4 Nf6 2.Nc3 e6
ECO
A17
Engine
+0.35 · a slight edge for White (Stockfish 17.1, depth 20)
Played
2,078 games in our lichess sample
White scores
50.8%

Key ideas for both sides

White

  • 3.e4 is the sharpest try: it threatens e5, and Black must react to the knight's attack.
  • 3.d4 Bb4 is a Nimzo-Indian. Know that theory before you choose it.
  • 3.Nf3 keeps things flexible and can transpose into Queen's Gambit lines after ...d5 and d4.
  • With e4 and c4 in place, keep the d4 square covered so Black's knights cannot settle there.

Black

  • Against 3.e4, the engine likes ...e5, using the d4 hole that White's e4 and c4 pawns leave.
  • ...Bb4 pins the c3 knight and fights for e4 in many lines.
  • The Hedgehog plan is ...b6, ...c5, ...d6 and ...a6, a compact wall that waits for White to overpress.
  • ...d5 is fine against quiet moves, but after e4 it can be met by e5 pushing the knight back.

Plans and pawn structure

If White plays 3.e4, the center becomes fixed quickly. White wants d4 with a broad pawn front; Black answers with ...e5, ...Nc6 and ...Bg4 pressure, as the engine shows. In slower lines, Black's Hedgehog pawns sit on a6, b6, d6 and e6, and Black waits for a ...b5 or ...d5 break. White, with more space, must avoid overextending and keep the d-file under control.

What the engine plays from here

Stockfish 17.1 at depth 20 rates the position +0.35: a slight edge for White. Its three top choices for White:

  1. +0.35 3.e4 e5 4.Nf3 Nc6 5.a3 d6
  2. +0.23 3.Nf3 d5 4.d4 Bb4 5.Bg5 O-O
  3. +0.20 3.d4 Bb4 4.e3 O-O 5.Bd3 d5

Pawns, from White's side.

How it scores on lichess

2,078 rated lichess games reached this position; White scored 50.8%.

under 120036.3%
1200–159954.0%
1600–199950.6%
2000 and up50.5%

Light: White wins. Grey: draws. Dark: Black wins. About the sample.

Where it goes next

  • Anglo-Indian Defense, Nimzo-English3.Nf3 · rare

How to play against it

As White, 3.e4 is the most testing; then aim for d4 and keep pieces on good squares, not pawn moves. As Black, do not let e5 come with tempo for free. Choose between ...e5 and ...d5 early, or pin with ...Bb4 so the c3 knight cannot support e4.

Questions

What are the moves of the English Opening: Anglo-Indian Defense, Hedgehog System?

The English Opening: Anglo-Indian Defense, Hedgehog System starts 1.c4 Nf6 2.Nc3 e6. Its ECO code is A17.

Is the English Opening: Anglo-Indian Defense, Hedgehog System good for Black?

Stockfish 17.1 rates the position +0.35 at depth 20, which is a slight edge for White. In 2,078 lichess games from our sample, White scored 50.8%. Suits patient Black players who enjoy counterpunching, but it requires knowing what to do against 3.e4.

What is the main idea of the English Opening: Anglo-Indian Defense, Hedgehog System?

Black keeps a flexible ...e6 and ...b6 setup in reserve, while White can test it with 3.e4 and a threat of e5. The game often turns into a Nimzo-Indian or a Hedgehog structure.

What should White play next?

The engine's first choice is e4, with Nf3 and d4 close behind. 3.e4 takes space and threatens e5, asking Black to commit in the center now.

Updated October 2026. Sources and method.