Semi-Slav: 6.Bd3

Before the first move

The Semi-Slav Defense is a rock-solid opening where Black builds a triangle of pawns to blunt White's pressure. White aims for central control and rapid development, while Black prepares to challenge the center later with breaks like c5 or e5, leading to complex strategic battles.

1. d4White · your move

Push your pawn to d4. This move stakes a claim in the center and opens paths for your queen and dark-squared bishop. It is the foundation of many positional systems where you control the pace of the game.

1... d5Black

Black replies with d5, the most solid response. While experimental lines like the Englund Gambit (e5) or the Dutch (f5) exist, this move ensures a firm foothold in the center and prepares for a classical development.

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 offering a gambit to divert Black's d-pawn away from the center. If Black captures, you'll gain a stronger central presence; if they decline, you maintain pressure on d5.

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

2... e6Black

Black chooses e6, the Queen's Gambit Declined. This solidifies the center while keeping the bishop on f8 ready to move. Other aggressive tries like the Chigorin (Nc6) or the Austrian (c5) are sharper but riskier alternatives.

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. Nc3White · your move

Develop your knight to c3. This piece adds immediate pressure to the d5 square and prepares for central action. It is a natural developing move that keeps your options open for different pawn structures.

Other paths here: Bf4 (QGD: 3.Bf4) · cxd5 (QGD: 3.cxd5) · e3 (QGD: 3.e3) · g3 (QGD: 3.g3)

3... Nf6Black

Black plays Nf6, developing a piece and guarding the center. This is the main line, though the Nimzo-Indian style (Bb4) or the Janowski Variation (a6) are also popular ways to handle this specific position.

Other paths here: Bb4 (QGD: 3.Nc3 Bb4) · Nc6 (QGD: 3.Nc3 Nc6) · Be7 (Queen's Gambit Declined: Charousek Variation) · a6 (Queen's Gambit Declined: Janowski Variation)

4. Nf3White · your move

Bring your knight to f3. This move completes your kingside knight development and prepares for castling. By avoiding an early Bg5, you keep the game in a more positional and flexible territory.

Other paths here: e3 (QGD: 3.Nc3 Nf6 4.e3) · g3 (QGD: Catalan without Nf3) · Bf4 (Queen's Gambit Declined: Harrwitz Attack) · Bg5 (Queen's Gambit Declined: Modern Variation)

4... c6Black

Black plays c6, entering the Semi-Slav Defense. This is a very ambitious setup. Black could have played the Ragozin (Bb4) or the Semi-Tarrasch (c5), but this pawn triangle is notoriously difficult to break down.

Other paths here: Be7 (QGD: 4.Nf3 Be7) · Nbd7 (QGD: Westphalia without Bg5) · Bb4 (QGD: Ragozin) · c5 (QGD: Semi-Tarrasch, 5.e3)

5. e3White · your move

Push your pawn to e3. This move solidifies your center and opens the diagonal for your light-squared bishop. You are preparing to develop your remaining pieces and castle safely before deciding on a central plan.

Other paths here: g3 (Semi-Slav: 5.g3) · Qb3 (Semi-Slav: 5.Qb3) · Qd3 (Semi-Slav: 5.Qd3) · Bg5 (Semi-Slav: Botvinnik (Anti-Meran))

5... Nbd7Black

Black plays Nbd7, a key move in the Semi-Slav. Black prepares to challenge the center. Alternatives like Bd6 or the aggressive Ne4 are possible, but the knight move is the most consistent with Black's setup.

Other paths here: Bd6 (Semi-Slav: 5.e3 Bd6) · Be7 (Semi-Slav: 5.e3 Be7) · Ne4 (Semi-Slav: 5.e3 Ne4)

6. Bd3White · your move

Move your bishop to d3. This is the most active square for the bishop, eyeing the h7 pawn and preparing for kingside castling. You are now ready to complete your development and start your middle-game plans.

Other paths here: a3 (Semi-Slav: 6.a3) · Qc2 (Semi-Slav: 6.Qc2)

Where you stand

The position is balanced but full of tension. White will likely castle kingside and look to push e4 or maintain central pressure. Black often aims to capture on c4 and expand with b5 and Bb7, or prepare the c5 break. Both sides have clear development paths, and the game will revolve around who better times their central pawn breaks.

• e1-g1 Castle kingside to secure the king
• d5-c4 Capture on c4 to start queenside expansion
• b7-b5 Push b5 to gain queenside space
• e3-e4 Push e4 to seize the center