Slav: 4.e3 Bf5 5.Nc3 e6

Before the first move

The Slav Defense is a rock-solid response to the Queen's Gambit where Black uses the c-pawn to support the center. In this specific line, Black successfully develops the light-squared bishop outside the pawn chain before playing e6, leading to a balanced and strategic battle for both sides.

1. d4White · your move

Push your pawn to d4. This move claims central space and opens lines for your queen and dark-squared bishop, establishing a strong foundation for your opening strategy.

1... d5Black

Black replies d5, the most direct way to challenge White's central ambitions. While alternatives like the English Defense with b6 or the sharp Englund Gambit with e5 exist, d5 remains the gold standard for stability.

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 Queen's Gambit, offering a pawn to lure Black's d5-pawn away from the center so you can eventually dominate the middle of the board.

Other paths here: Qd3 (Amazon Attack) · e4 (Blackmar-Diemer Gambit) · e3 (Queen's Pawn Game) · Bf4 (Queen's Pawn Game: Accelerated London System)

2... c6Black

Black chooses c6, entering the Slav Defense. This is more solid than the Marshall Defense with Nf6 and more flexible than the Chigorin with Nc6, as it maintains a rock-solid pawn triangle in the center.

Other paths here: c5 (Queen's Gambit Declined: Austrian Defense) · Bf5 (Queen's Gambit Declined: Baltic Defense) · Nf6 (Queen's Gambit Declined: Marshall Defense) · b5 (Queen's Gambit Declined: Zilbermints Gambit)

3. Nf3White · your move

Develop your knight to f3. This natural move controls the e5 and d4 squares while preparing for kingside castling. It keeps your options open before committing your central pawns further.

Other paths here: Nc3 (Slav Defense) · e4 (Slav Defense: Diemer Gambit) · cxd5 (Slav Defense: Exchange Variation) · Bf4 (Slav: 3.Bf4)

3... Nf6Black

Black responds with Nf6, continuing natural development. At this stage, Black could also consider the sharp dxc4 or the immediate Bf5, but the knight move is the most solid and flexible way to proceed.

Other paths here: Bf5 (Slav: 3.Nf3 Bf5) · Bg4 (Slav: 3.Nf3 Bg4) · dxc4 (Slav: 3.Nf3 dxc4) · e6 (Semi-Slav Defense: Chigorin Defense)

4. e3White · your move

Push your pawn to e3. This solidifies your d4-pawn and opens the path for your light-squared bishop to enter the game. You are building a very sturdy, classical central structure.

Other paths here: Bg5 (Slav Defense: Bonet Gambit) · Nbd2 (Slav Defense: Breyer Variation) · Qb3 (Slav: 4.Qb3) · Qc2 (Slav: 4.Qc2)

4... Bf5Black

Black plays Bf5, the point of this variation. By developing the bishop now, Black avoids the 'bad bishop' problem often found in the Queen's Gambit Declined. Alternatives include the Quiet Variation with e6 or a6.

Other paths here: Bg4 (Slav Defense: Quiet Variation, Pin Defense) · a6 (Slav: 4.e3 a6) · g6 (Slav: 4.e3 g6) · e6 (Semi-Slav Defense: Quiet Variation)

5. Nc3White · your move

Develop your knight to c3. This increases the pressure on the d5-square and prepares to challenge Black's active bishop. You are completing your minor piece development on the queenside.

Other paths here: Bd3 (Slav: 4.e3 Bf5 5.Bd3) · cxd5 (Slav: 4.e3 Bf5 5.cxd5) · Qb3 (Slav: 4.e3 Bf5 5.Qb3)

5... e6Black

Black plays e6, completing the solid defensive wall. The position is now typical of the Slav, with both sides having developed logically and the main fight for the center about to begin.

Where you stand

The position is remarkably balanced. White will likely try to challenge the f5-bishop with Nh4 or Bd3, while Black aims for a timely c5 break or simple development with Be7 and castling. Both sides have achieved their primary goals: White has a strong center, and Black has developed their light-squared bishop effectively.

• f3-h4 Hunt the active f5 bishop
• f1-d3 Challenge the bishop on f5
• f8-e7 Prepare for kingside castling
• c6-c5 Strike at the white center