Slav: Exchange, 6.Bf4 Bf5

Before the first move

The Exchange Slav is a solid, symmetrical battleground where White seeks a tiny edge in a clarified structure. By trading early on d5, White eliminates Black's counterplay but also simplifies the task for both sides. The goal is to control the open c-file and use the active minor pieces to create pressure in a semi-open landscape.

1. d4White · your move

Push your pawn to d4. This move claims the center and opens paths for your queen and dark-squared bishop. It is the foundation of many strategic systems, aiming for a controlled, positional game rather than the immediate tactical chaos often found in e4 openings.

1... d5Black

Black replies with d5, the most classical response to d4. Other choices like Nf6 lead to the Nimzo-Indian or King's Indian, while more aggressive gambits like e5 (Englund Gambit) or the offbeat Na6 (Australian Defense) attempt to immediately unbalance the game.

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 to challenge the d5-pawn. This is the Queen's Gambit. You are offering a side pawn to lure Black's central pawn away, which would give you full control of the center and open the c-file for your rook later.

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 opts for c6, the Slav Defense. This is a very sturdy choice. Black could also play e6 (Queen's Gambit Declined) or the Chigorin Defense with Nc6, but the Slav is renowned for its solidity and the flexibility of the light-squared bishop.

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 move controls the e5 and d4 squares and prepares for kingside castling. It is a flexible developing move that keeps your options open while maintaining pressure on the center.

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

3... Nf6Black

Black develops with Nf6. At this stage, Black has several alternatives like the sharp dxc4 (Slav Accepted) or the more experimental Bf5 or Bg4, but Nf6 is the most solid and standard way to continue development.

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. cxd5White · your move

Capture the pawn on d5. This initiates the Exchange Variation. By simplifying the pawn structure, you create a symmetrical position where you hope to use your first-move advantage to dominate the open c-file.

Other paths here: Bg5 (Slav Defense: Bonet Gambit) · Nbd2 (Slav Defense: Breyer Variation) · e3 (Slav Defense: Quiet Variation) · Qb3 (Slav: 4.Qb3)

4... cxd5Black

Black recaptures with cxd5. The position is now perfectly symmetrical. Black must be careful to mirror White's development accurately to ensure that White's slight tempo advantage does not turn into a concrete initiative.

5. Nc3White · your move

Develop your knight to c3. This puts direct pressure on d5 and prepares to jump into b5 or d5 if the opportunity arises. It also develops a piece toward the center and supports your d4-pawn.

5... Nc6Black

Black replies with Nc6, maintaining the symmetry. Alternatives like a6 or e6 are also common, but Nc6 is the most active way to develop, preparing to fight for the c-file and the central squares.

Other paths here: a6 (Slav: Exchange, 5.Nc3 a6) · Bf5 (Slav: Exchange, 5.Nc3 Bf5) · e6 (Slav: Exchange, 5.Nc3 e6)

6. Bf4White · your move

Develop your bishop to f4. This is an excellent square for the bishop, controlling the important b8-h2 diagonal and exerting pressure on the c7-square. It also prepares to bring your rooks to the c-file.

6... Bf5Black

Black plays Bf5, completing the symmetrical development of the minor pieces. Black could also try e6 or a6 to break the symmetry, but Bf5 is the most principled way to ensure the light-squared bishop is not trapped behind the pawn chain.

Other paths here: a6 (Slav: Exchange, 6.Bf4 a6) · e6 (Slav: Exchange, 6.Bf4 e6)

Where you stand

The position is dead level and highly symmetrical. White will likely play e3 and Be2 to castle, while Black will do the same. The battle will eventually shift to the open c-file, where both sides will try to double rooks. Small nuances in king safety and minor piece trades will determine who holds the upper hand in the endgame.

• a1-c1 Bring the rook to the open c-file
• f1-e2 Develop the bishop and prepare to castle
• a8-c8 Contest the open c-file with the rook
• e8-g8 Castle kingside for safety
• f3-e5 Look for an outpost on e5