How to Play Black in the English Opening: Anglo-Indian Defense g3
If you play 1.c4 Nf6 2.g3 e5 as Black, you step into one of the most balanced and strategically flexible lines of the English Opening. White has nearly 1.4 million games to draw on, yet the position is dead level — Stockfish gives +0.22, a tiny edge for White that disappears with accurate play. Below the interactive board you'll find the engine's best response, the statistics behind each of White's main choices, and the one move you should be happy to see your opponent play. Try the drill now and see how you stack up against the most common replies.
Play the English Opening: Anglo-Indian Defense: g3 against the engine
Free, no signup — you play black, the engine adapts to your level.
Play through the critical lines of the Anglo-Indian Defense g3 on the interactive board above. Your goal as Black is to equalise fully and look for chances to n
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By playing 2...e5 you claim a share of the centre and challenge White's flank opening immediately. The pawn on e5 eyes d4 and f4, while your knight on f6 keeps pressure on the centre and prepares to recapture on d5 if White chooses Bg2 followed by d4 or d5. This is fundamentally a battle for the central squares — whoever controls d4 and d5 will have the easier game. Because the evaluation is virtually equal (+0.22 for White, which is dead level in practice), you can play for a win without taking excessive risk. Your typical plans include a quick ...d5 break when possible, developing your light-squared bishop to e6 or g4, and castling kingside into a solid pawn structure.
The Engine's Main Line and Your Setup
The computer's top choice is 3.Bg2, intending 3...d5 4.cxd5 Nxd5. After that sequence Black has a comfortable game: the knight is active in the centre, White's king bishop is fianchettoed but not yet threatening, and you can follow up with ...Nc6, ...Be6, and ...Qd7 or ...Qd6 depending on how White continues. Over 1.24 million games have reached 3.Bg2, which tells you this is the line you will face most often. White scores 52.9% from there — not because the opening is winning for White, but because the resulting middlegame rewards the player who understands the structures better. Your job is to learn the typical plans so you land on the strong side of that percentage.
What the Numbers Tell You
The statistics across 1,399,918 games are remarkably consistent. White wins 52.6% overall, Black wins 43.5%, and draws are rare at just 3.9%. The most-played moves by White are Bg2 (52.9% White score), Nc3 (51.3%), and Nf3 (48.4%). Notice that the knight moves to f3 and d3 drop White's winning percentage below 50% — a sign that inaccurate development by White gives Black comfortable equality or better. The most important number, though, is the evaluation: +0.22. That is the engine's way of saying the position is essentially balanced. If you know the ideas better than your opponent, you will outperform the 43.5% Black win rate.
The Mistake to Punish
White's move 3.e3 is a known mistake, losing roughly 1.1 pawns of advantage — the engine says Bg2 was clearly better. Why is e3 so bad? It blocks the queen's bishop, weakens the d3 square, and does nothing to fight for the centre. Black should respond with the natural 3...d5, grabbing space and opening lines. After 4.cxd5 Nxd5 Black is already slightly better: the knight sits powerfully on d5, White's pawn on e3 cramps the light-squared bishop, and Black has an easy development plan of ...Nc6, ...Be6, and ...Qd7. If your opponent plays 3.e3, you have a clear path to an edge.
Results across 1,399,918 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| Bg2 | 1,248,853 | 52.9% |
| Nc3 | 104,588 | 51.3% |
| Nf3 | 13,103 | 48.4% |
| d3 | 12,976 | 49.3% |
| e3 | 9,047 | 48.1% |
| a3 | 2,562 | 49.6% |
Frequently asked questions
Is the English Opening: Anglo-Indian Defense g3 good for Black?
Yes. The position after 1.c4 Nf6 2.g3 e5 is dead level according to Stockfish (+0.22), meaning neither side is better with correct play. Black has a 43.5% winning chance in practice, which is a healthy score for a solid opening.
What is White's most common move after 1.c4 Nf6 2.g3 e5?
By far the most common move is 3.Bg2, played in over 1.24 million games. White scores 52.9% from that position. The engine also recommends Bg2, planning d5 followed by cxd5 Nxd5.
What is the biggest mistake White can make in this opening?
Playing 3.e3 is a mistake costing White about 1.1 pawns of advantage. It blocks the queen's bishop and leaves Black with an easy game after the central break 3...d5. Black should be happy to see this move.
How should Black respond to 3.Nc3 instead of Bg2?
3.Nc3 is the second most common move (over 104,000 games) and White scores a solid 51.3% from it. Black's best reply is still 3...d5, challenging the centre immediately. After 4.cxd5 Nxd5 the position resembles the main line, and Black has comfortable equality.