Old Indian: 4.Nf3 e4

Before the first move

The Old Indian Defense is a solid, resilient system where Black avoids the early fianchetto of the King's Indian. Instead, Black focuses on a sturdy center and flexible development, often leading to complex maneuvering battles where you must fight for every inch of space.

1. d4White · your move

Push your pawn to d4. This central strike claims space and opens paths for your queen and dark-squared bishop, establishing a foundation for your control of the board.

1... Nf6Black

Black responds with Nf6, the most popular way to meet d4. By developing the knight, Black controls e4 and d5. Other rare tries include the adventurous Englund Gambit with e5 or the solid Horwitz Defense with e6.

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 pawn duo that controls the d5-square and prepares to develop your knight behind the pawn shield to 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... d6Black

Black chooses d6, signaling the Old Indian Defense. This is a more compact approach than the Nimzo-Indian or the Queen's Indian. Black intends to develop the bishop to e7 rather than fianchettoing it on g7.

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. This piece adds more pressure to the d5 and e4 squares and is perfectly placed to support your central pawn structure.

Other paths here: g4 (Old Indian Defense: Aged Gibbon Gambit) · g3 (Old Indian: 3.g3) · Nf3 (Old Indian: 3.Nf3)

3... e5Black

Black plays e5, the thematic central break. This move forces White to make a decision about the center. Instead of this direct challenge, Black sometimes tries the more patient Czech Variation with c6 or the Janowski Variation with Bf5.

Other paths here: c6 (Old Indian Defense: Czech Variation, with Nc3) · Bf5 (Old Indian Defense: Janowski Variation) · Nbd7 (Old Indian: 3.Nc3 Nbd7)

4. Nf3White · your move

Bring your knight to f3. This move maintains the tension in the center while finishing your kingside development, preparing you to castle and secure your king.

Other paths here: d5 (Old Indian: Ukrainian, 4.d5) · dxe5 (Old Indian: Ukrainian, 4.dxe5) · e3 (Old Indian: Ukranian, 4.e3) · e4 (Old Indian: Ukranian, 4.e4)

4... e4Black

Black surprises with e4, a sharp and ambitious thrust that gains space by attacking the knight. Usually, Black plays Nbd7 or captures on d4, but this advance creates an immediate imbalance that White must address carefully.

Other paths here: exd4 (Old Indian: 4.Nf3 exd4) · Nbd7 (Old Indian: 4.Nf3 Nbd7) · Nc6 (Old Indian: 4.Nf3 Nc6)

Where you stand

The position is sharp and unconventional. Black has gained space with the e4-push, but White will now look to undermine that pawn while completing development. White should focus on rerouting the attacked knight, likely to d2, while Black must find a way to support the advanced e4-pawn with moves like Qe7 and d5.

• f3-d2 Relocate knight to pressure e4
• d8-e7 Support the advanced e4 pawn
• g1-g2 Prepare to fianchetto the bishop
• d6-d5 Solidify the center with d5