Spanish: 4.Ba4

Before the first move

The Spanish Game, or Ruy Lopez, is one of the most prestigious openings in chess history. By pressuring the defender of the e5-pawn, White creates long-term tension while Black uses the Morphy Defense to ask White's bishop a critical question. We will explore the Main Line where White chooses to keep the bishop on the board.

1. e4White · your move

Push your pawn to e4. This classic opening move stakes a claim in the center, opens lines for your queen and light-squared bishop, and prepares for rapid development of your kingside pieces.

1... e5Black

Black replies e5, establishing a symmetrical foothold in the center. While alternatives like the Scandinavian or the Caro-Kann are popular, this move leads to the most classical struggles. You'll need to be ready for White's immediate attack on this pawn.

Other paths here: f6 (Barnes Defense) · g5 (Borg Defense) · h6 (Carr Defense) · f5 (Duras Gambit)

2. Nf3White · your move

Develop your knight to f3. This is the most natural and strongest way to continue, putting immediate pressure on the e5-pawn while preparing to castle. It forces Black to find a way to defend their central position.

Other paths here: Ke2 (Bongcloud Attack) · d4 (Center Game) · c4 (English Opening: The Whale) · Ne2 (King's Pawn Game: Alapin Opening)

2... Nc6Black

Black replies Nc6, the most solid defense of the e5-pawn. Other options like the Petrov Defense with Nf6 or the Philidor with d6 are also seen, but the knight move keeps the game in the most theoretical and rich territory.

Other paths here: d5 (Elephant Gambit) · Qe7 (Gunderam Defense) · Bc5 (King's Pawn Game: Busch-Gass Gambit) · f6 (King's Pawn Game: Damiano Defense)

3. Bb5White · your move

Slide your bishop to b5. This enters the Ruy Lopez. You aren't just developing; you are pressuring the knight that defends e5. This indirect pressure on the center is the hallmark of this deep and strategic opening.

Other paths here: Nxe5 (Irish Gambit) · g3 (King's Knight Opening: Konstantinopolsky) · c4 (King's Pawn Game: Dresden Opening) · b4 (King's Pawn Game: Pachman Wing Gambit)

3... a6Black

Black plays a6, putting the question to the bishop. This is a vital branching point. While Black can try the Berlin Defense with Nf6 or the Schliemann Gambit with f5, the a6 move is the most flexible and widely played response.

Other paths here: Bb4 (Ruy Lopez: Alapin Defense) · g5 (Ruy Lopez: Brentano Gambit) · a5 (Ruy Lopez: Bulgarian Variation) · Nge7 (Ruy Lopez: Cozio Defense)

4. Ba4White · your move

Retreat your bishop to a4. By choosing to keep your bishop, you maintain the pressure on the knight and the e5-square. You are preparing to drop back further to b3 if needed, keeping your powerful light-squared bishop active.

Other paths here: Bxc6 (Ruy Lopez: Exchange Variation) · Bc4 (Spanish: 3...a6 4.Bc4)

Where you stand

The position is a rich starting point for both sides. White intends to castle and then challenge the center with c3 and d4. Black will likely develop the other knight to f6 and prepare to expand on the queenside with b5. Both sides must balance rapid development with the long-term struggle for central supremacy.

• e1-g1 Castle kingside to secure your king
• g8-f6 Develop the knight and attack e4
• a4-b3 Retreat the bishop to safety
• b7-b5 Expand on the queenside and kick the bishop
• c2-c3 Prepare the d4 central pawn push