Queen's Indian: 4.e3 Bb7

Before the first move

The Queen's Indian Defense is a sophisticated hypermodern opening where Black controls the center using pieces rather than pawns. By fianchettoing the light-squared bishop, Black exerts long-range pressure on the e4 and d5 squares. White aims for a solid, classical setup with e3, preparing to develop the kingside and maintain a central space advantage.

1. d4White · your move

Push your pawn to d4. This move claims central space and opens lines for your queen and dark-squared bishop. It is the foundation of most closed games, setting the stage for a strategic battle rather than an immediate tactical skirmish.

1... Nf6Black

Black replies with Nf6, the most flexible response to d4. By developing the knight, Black controls the e4 square and prepares for king-safety. Other options like the Englund Gambit with e5 or the English Defense with b6 are much riskier and less common at the highest levels of play.

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

2. c4White · your move

Push your pawn to c4. This is the hallmark of the Queen's Gambit family of openings. You are increasing your influence in the center and preparing to develop your knight to c3, while creating a potential path for your queen to b3 or a4.

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 plays e6, preparing to challenge the center. This move is a prerequisite for many systems. While Black could try the aggressive Benoni with c5 or the King's Indian with g6, e6 remains the most solid choice, maintaining a firm grip on the central dark squares.

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 is a natural developing move that reinforces your control of d4 and prevents any immediate e5 breaks. It also keeps the game in Queen's Indian territory, avoiding the pin that occurs in the Nimzo-Indian.

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

3... b6Black

Black plays b6, entering the Queen's Indian Defense. This hypermodern approach challenges White's center from a distance. Alternatively, Black could play d5 to enter a Queen's Gambit Declined or Be7 to keep things more restricted, but b6 is the most thematic way to contest the light squares.

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 creates a rock-solid pawn chain and prepares to develop your light-squared bishop to d3 or e2. While it temporarily blocks your dark-squared bishop, it ensures your center is well-defended before you commit to an attack.

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 development of the light-squared bishop with Bb7. This is the most natural and strongest square for the piece in this setup. Black could also consider Bb4+ first to disrupt White's coordination, but the immediate Bb7 is the most direct way to execute the Queen's Indian strategy.

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

Where you stand

The position is balanced and rich with strategic depth. White will likely develop the bishop to d3 and castle kingside, aiming for a central break with e4 or c5. Black will focus on maintaining the pressure from the b7 bishop, often reinforcing the center with d5 or c5, while preparing to castle and complete development for a long maneuvering battle.

• f1-d3 Develop the bishop to its most active square.
• e1-g1 Secure the king and connect the rooks.
• b7-e4 Pressure the e4 square with the bishop.
• f8-e7 Prepare to castle by developing the bishop.
• c4-c5 Challenge the center and open lines.