Queen's Indian: 4.e3 Bb7 5.Nc3

Before the first move

The Queen's Indian Defense is a sophisticated hypermodern opening where Black controls the center with pieces rather than pawns. By playing an early b6 and Bb7, Black aims to exert long-range pressure on the e4 square, while White seeks to build a solid center and prepare for a kingside attack or central expansion.

1. d4White · your move

Push your pawn to d4 to claim immediate control of the center. This classic opening move opens lines for your queen and dark-squared bishop, establishing a foothold in the middle that dictates the pace of the game.

1... Nf6Black

Black replies with Nf6, the hallmark of the Indian Defenses. While Black could play d5 to enter the Queen's Gambit, this knight move is more flexible. Other choices like the Englund Gambit or the Benoni-style c5 lead to very different games.

Other paths here: Na6 (Australian Defense) · g5 (Borg Defense: Borg Gambit) · b6 (English Defense) · e5 (Englund Gambit)

2. c4White · your move

Advance your pawn to c4. By placing a second pawn in the center, you increase your control over the d5 square and prepare to develop your knight behind the pawn to its most natural square on c3.

Other paths here: f4 (Canard Opening) · g4 (Indian Defense: Gibbins-Weidenhagen Gambit) · e4 (Indian Defense: Omega Gambit) · d5 (Indian Defense: Pawn Push Variation)

2... e6Black

Black chooses e6, a solid and standard response. This move prepares for Bb4 or d5. Black could also try the aggressive Budapest Gambit or the Benoni, but e6 is the foundation of the most respected systems against c4.

Other paths here: g5 (Indian Defense: Medusa Gambit) · b5 (Indian Defense: Pyrenees Gambit) · a6 (Indian: 2.c4 a6) · Nc6 (Mexican Defense)

3. Nf3White · your move

Develop your knight to f3. This move reinforces your control over d4 and e5 while preparing for kingside castling. It is a flexible developing move that avoids the complications of the Nimzo-Indian Defense.

Other paths here: g3 (Catalan Opening) · Qb3 (Indian Defense) · g4 (Indian Defense: Devin Gambit) · Bg5 (Indian Defense: Seirawan Attack)

3... b6Black

Black plays b6, signaling the Queen's Indian Defense. Instead of fighting for the center with d5, Black will challenge it from the flanks. Alternatives like Be7 or the sharp Blumenfeld Gambit are also seen here, but b6 is the main line.

Other paths here: d5 (Queen's Gambit Declined) · Ne4 (Indian Defense: Döry Indian) · a6 (Indian Defense: Dzindzi-Indian Defense) · Be7 (Neo-Indian: 3.Nf3 Be7)

4. e3White · your move

Move your pawn to e3. This solidifies your d4 pawn and opens the diagonal for your light-squared bishop. You are choosing a very solid, classical setup that prioritizes safety and steady development over immediate aggression.

Other paths here: Nc3 (Queen's Indian Defense: Kasparov Variation) · Bf4 (Queen's Indian Defense: Miles Variation) · a3 (Queen's Indian Defense: Petrosian Variation) · Bg5 (Queen's Indian: 4.Bg5)

4... Bb7Black

Black completes the fianchetto with Bb7. This bishop is now a powerful long-range attacker. Black sometimes tries Bb4+ first to disrupt White's development, but Bb7 is the most direct way to implement the Queen's Indian strategy.

Other paths here: Bb4+ (Queen's Indian: 4.e3 Bb4+)

5. Nc3White · your move

Bring your knight to c3. You are developing your last minor piece on the queenside and preparing to castle. This knight adds pressure to the center and supports a potential future push of the e-pawn or d-pawn.

Other paths here: Bd3 (Queen's Indian: 4.e3 Bb7 5.Bd3)

Where you stand

The position is balanced and rich in strategic possibilities. White will likely develop the light-squared bishop to d3 and castle kingside, aiming for a central break with e4. Black will often play Bb4 to pin the knight or d5 to challenge the center directly. Both sides must carefully manage the tension around the e4 and d5 squares to gain the upper hand.

• f1-d3 Develop the bishop to its most active square
• e1-g1 Secure the king and bring the rook into play
• f8-b4 Pin the knight to pressure the center
• c7-c5 Challenge White's central pawn structure