Nimzo-Indian: 4.e3 c5 5.Nf3

Before the first move

The Nimzo-Indian Defense is a hypermodern masterpiece where Black pins the knight on c3 to control the center. In this Rubinstein System, White plays solidly with e3, preparing for a long strategic struggle where pawn structures and piece activity matter more than immediate attacks.

1. d4White · your move

Push your pawn to d4. This classic opening move claims space in the center and opens paths for your queen and dark-squared bishop, setting the stage for a strategic battle.

1... Nf6Black

Black responds with Nf6, the most popular way to meet the Queen's Pawn Game. By avoiding early pawn commitments, Black keeps options open for the Nimzo-Indian, the King's Indian, or even the Queen's Gambit.

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. You are building a powerful central duo that controls d5 and prepares to develop your knight behind the pawn shield.

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 develop the bishop. This is a very flexible choice; Black might still go for a Queen's Gambit Declined or a Queen's Indian, but it is the essential gateway to the Nimzo-Indian.

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

3. Nc3White · your move

Develop your knight to c3. You are putting maximum pressure on the d5 square and preparing to support an e4 push later in the opening.

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

3... Bb4Black

Black enters the Nimzo-Indian with Bb4. This is a highly respected defense at all levels. Instead of this pin, Black could choose the Queen's Indian with b6 or the Queen's Gambit with d5, but Bb4 is the most provocative.

Other paths here: b6 (Queen's Pawn: Neo-Indian, 3...b6) · c5 (Queen's Pawn: Neo-Indian, 3...c5) · d5 (Queen's Gambit Declined: Exchange Variation)

4. e3White · your move

Move your pawn to e3. This solidifies your d4 pawn and prepares to develop your light-squared bishop. You are choosing the Rubinstein System, the most solid way to meet the Nimzo-Indian.

Other paths here: f3 (Nimzo-Indian Defense: Kmoch Variation) · Qd3 (Nimzo-Indian Defense: Mikenas Attack) · g3 (Nimzo-Indian Defense: Romanishin Variation) · Bd2 (Nimzo-Indian: 4.Bd2)

4... c5Black

Black strikes at the center with c5. This is a standard reaction in the Rubinstein, pressuring d4. Black could also castle first or play d5, but c5 leads to the most dynamic central tension.

Other paths here: Nc6 (Nimzo-Indian Defense: Rubinstein System, Taimanov Variation) · b6 (Nimzo-Indian Defense: St. Petersburg Variation) · O-O (Nimzo-Indian Defense: Normal Variation) · d5 (Keres Variation, Nimzo-Indian)

5. Nf3White · your move

Develop your knight to f3. This natural move defends d4, prepares for castling, and keeps your options open regarding the central pawn tension.

Other paths here: Bd3 (Nimzo-Indian: 4.e3 c5 5.Bd3) · Ne2 (Nimzo-Indian Defense: Rubinstein System, Rubinstein Variation)

Where you stand

The position is balanced and rich with strategic depth. White will likely develop the bishop to d3 and castle, while Black will castle and decide whether to capture on c3 or maintain the pin. The battle revolves around whether White's bishop pair can eventually outweigh Black's superior pawn structure if the exchange on c3 occurs.

• f1-d3 Develop the bishop to its most active diagonal
• e1-g1 Castle kingside to secure the king
• e8-g8 Castle to complete early development
• d7-d5 Challenge the center with a d5 push
• b4-c3 Exchange bishop for knight to damage White's pawns