Chessy
East Indian Defense: c4 – Black's Guide to the Position
You have just played the East Indian Defense: c4. After 1.d4 Nf6 2.Nf3 g6 3.c4 Bg7, White is on the move and you, as Black, have already built a flexible Kingside Fianchetto setup. The engine gives this position +0.41, a small edge for White — so you are slightly worse, but barely. With nearly 2,610,000 games played from here, the results are almost dead even: Black wins 48.0% of the time versus White's 47.7% (with just 4.2% draws). That near-equal winning percentage is your first clue: this position is perfectly playable if you know what to do. The interactive drill below will help you navigate the most common continuations and spot White's mistakes.
Play the East Indian Defense: c4 against the engine
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Create a free account →What You're Fighting For – The Fianchetto Triangle
The hallmark of the East Indian Defense is Black's pawn on g6 and bishop on g7. From here, your bishop eyes the long diagonal (h8–a1), putting pressure on White's centre. Your opening move order — 1...Nf6, 2...g6, 3...Bg7 — avoids immediate confrontation and keeps options open. You can meet 4.Nc3 (the most popular move, played in over 1.5 million games) with 4...d5, striking back in the centre. That leads to a quick exchange: cxd5 Nxd5, giving you an active knight on d5 and an open position. Your winning percentage in this line is reflected in the overall 48.0% — you are not merely surviving; you are fighting for the full point.
The Critical Moment – White's Best Move
The engine's top recommendation is Nc3 (developing the knight and defending the c4 pawn). After Nc3, you should reply d5, challenging the centre immediately. If White takes with cxd5, recapture with your knight: Nxd5. You now have a knight in the centre, a fianchettoed bishop ready to activate, and easy development for your other pieces. White's score after Nc3 is only 48.4% — barely above a coin flip. This tells you that even the engine's first choice does not give White a clear path to an advantage. Your task is simple: get your pieces out, castle quickly, and keep the tension.
The Most Popular Replies and What They Mean for You
Let's look at White's other common moves and how they affect your odds: e3 (343,526 games) — White scores a poor 44.9%, meaning you win more than half the time. White's queen pawn is blocked, giving you a comfortable game. g3 (290,694 games) — White scores 50.5%, the only line where White breaks even. Still, that's hardly decisive. Bg5 (206,554 games) and Bf4 (121,237 games) are both inaccuracies that lose roughly 0.8 and 0.5 pawns respectively (the engine prefers Nc3). Black's winning chances go up. e4 (38,998 games) is actually a mistake, losing about 1.3 pawns. White scores only 43.4% after it — you are clearly better here. Each of these suboptimal moves gives you a tangible boost.
Punishing White's Mistakes
The FACTS identify three concrete missteps White can make from this position: Bg5 (an inaccuracy, ~0.8 pawns lost), Bf4 (an inaccuracy, ~0.5 pawns lost), and e4 (a mistake, ~1.3 pawns lost). If White plays e4, you have a serious edge. Your plan: strike back in the centre with d5 or c5, activating your pieces while White struggles with the overextended pawn. If White develops a bishop to g5 or f4, those pieces can become targets. Simply continue your development with d6 or 0-0, and use your g7-bishop's long-range power to challenge White's centre. The drill below will let you practise these exact scenarios — the engine will adapt to your level and show you the best responses.
Results across 2,610,323 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| Nc3 | 1,513,145 | 48.4% |
| e3 | 343,526 | 44.9% |
| g3 | 290,694 | 50.5% |
| Bg5 | 206,554 | 47.2% |
| Bf4 | 121,237 | 46.2% |
| e4 | 38,998 | 43.4% |
Frequently asked questions
Is the East Indian Defense: c4 a good opening for Black?
Yes, it is solid and practical. After 1.d4 Nf6 2.Nf3 g6 3.c4 Bg7, Black scores 48.0% compared to White's 47.7% — essentially equal results. The engine gives White a tiny +0.41 edge, which means you are only slightly worse, and club-level players rarely exploit that edge.
What is Black's best move after White plays 4.Nc3?
The engine's best continuation is 4...d5, challenging White's centre immediately. After 5.cxd5 Nxd5, you have an active knight on d5, your bishop on g7 is poised on the long diagonal, and your development proceeds smoothly.
How do I punish White if they play 4.e4?
White's move 4.e4 is a mistake that costs roughly 1.3 pawns. You should strike back in the centre — either with d5 or c5 — and develop rapidly. Your winning chances increase significantly, as White's score after e4 drops to just 43.4%.
Why is 4.Bg5 considered an inaccuracy?
Developing the bishop to g5 loses about 0.8 pawns compared to Nc3. It does not put immediate pressure on Black and can become a target. Simply continue your development with d6 or 0-0, and you will have at least equal chances.