Queen's Indian: 4.Nc3 Bb7

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 fianchettoing the light-squared bishop, Black exerts long-range pressure on the e4-square, challenging White's space advantage and setting the stage for a rich, strategic battle.

1. d4White · your move

Push your pawn to d4. This move claims central space, opens lines for your queen and bishop, and immediately dictates the pace of the game. It is the foundation for many of the most solid and strategic openings in chess.

1... Nf6Black

Black replies Nf6, the most flexible response to d4. This prevents a quick e4 and keeps White guessing. While Black could try the Englund Gambit with e5 or the English Defense with b6, this knight move is the gold standard for high-level 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. You are building a powerful pawn duo that controls the d5 and e5 squares. This move also prepares to develop your knight to c3 without blocking this vital wing pawn.

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, a move that often leads to the Nimzo-Indian or Queen's Indian. While Black could play the aggressive Mexican Defense with Nc6 or the Accelerated Queen's Indian with b6, this move is the most classical way to prepare central development.

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 flexible developing move that controls the e5 and d4 squares. By delaying the development of your other knight, you avoid certain lines like the Nimzo-Indian and keep your options open.

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

3... b6Black

Black replies b6, signaling the Queen's Indian Defense. Instead of the typical d5 Queen's Gambit Declined or the Benoni-style c5, Black chooses to fianchetto the bishop to challenge White's control of the critical e4 and d5 squares from a distance.

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. Nc3White · your move

Develop your knight to c3. You are increasing your control over the center and preparing to eventually push e4. This move develops a piece to its most natural square while challenging Black's control of the long diagonal.

Other paths here: Bf4 (Queen's Indian Defense: Miles Variation) · a3 (Queen's Indian Defense: Petrosian Variation) · Bg5 (Queen's Indian: 4.Bg5) · e3 (Queen's Indian Defense: Spassky System)

4... Bb7Black

Black plays Bb7, completing the core setup of the Queen's Indian. While Black could have opted for the Duchamp Variation with Bb4, placing the bishop on b7 is the most thematic way to pressure the center and prepare for kingside castling.

Other paths here: Bb4 (Nimzo-Indian Defense: Three Knights Variation, Duchamp Variation) · d5 (Queen's Gambit Declined: Pillsbury Attack)

Where you stand

The position is balanced and strategically rich. White will likely look to expand with a3 and d5 or prepare e4, while Black aims to challenge the center with d5 or c5. Both sides must carefully manage the tension on the long diagonal, as the battle for the e4-square will dictate the flow of the upcoming middlegame.

• a2-a3 Prepare b4 and restrict the bishop
• c3-e4 Support the central e4 pawn push
• b7-e4 Pressure the e4 square with the bishop
• d7-d5 Challenge the center with a pawn strike
• e1-g1 Secure the king and connect rooks