Ruy Lopez: Open, Classical Defense

Before the first move

The Open Ruy Lopez is a dynamic battle where Black chooses to capture the e4-pawn early rather than defending passively. Instead of the slow maneuvering found in the Closed variations, both sides enter a sharp race for central control and piece activity, leading to open lines and rich tactical possibilities.

1. e4White

White opens with e4, the most common and ambitious first move. By occupying the center, White prepares to develop pieces quickly. Black has many ways to respond, including the solid e5, the sharp Sicilian Defense with c5, or the French Defense with e6.

1... e5Black · your move

Respond by moving your pawn to e5. By mirroring White's move, you stake your own claim in the center and prevent White from easily pushing a second pawn to d4. This leads to the Open Game, where piece play and central tension are key.

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

2. Nf3White

White plays Nf3, putting immediate pressure on e5. This is far more common than the Center Game with d4 or the Alapin with Ne2. It forces Black to defend the pawn while White prepares to bring out the light-squared bishop.

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

2... Nc6Black · your move

Bring your knight to c6 to defend your e5-pawn. This is the most principled way to protect the center while developing a piece. You maintain the balance and prepare for White's next attacking move, likely a bishop sortie.

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

White plays Bb5, the signature move of the Ruy Lopez. Rather than the Italian Game with Bc4 or the Scotch with d4, White chooses to pressure the defender of e5. This creates immediate strategic tension that Black must address.

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 · your move

Push your pawn to a6 to challenge the bishop. This is the Morphy Defense, the most popular way to deal with the Ruy Lopez. You force White to decide whether to capture your knight or retreat the bishop to a4.

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

White opts for Ba4, the main line. This keeps the bishop on the board to maintain pressure. The alternative is the Exchange Variation with Bxc6, which creates a different kind of game based on pawn structures rather than piece activity.

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

4... Nf6Black · your move

Develop your knight to f6. This move attacks the e4-pawn and prepares for kingside castling. It is a flexible developing move that challenges White to defend their center or allow you to enter the sharp Open variations.

Other paths here: Nd4 (Ruy Lopez: Bird's Defense Deferred) · Bb4 (Ruy Lopez: Morphy Defense, Alapin's Defense Deferred) · b5 (Ruy Lopez: Morphy Defense, Caro Variation) · Bc5 (Ruy Lopez: Morphy Defense, Classical Defense Deferred)

5. O-OWhite

White castles, prioritizing king safety. This is the most common choice, though White could play d3 to defend e4 more solidly. By castling, White allows Black to take on e4, which is exactly what defines the Open variation.

Other paths here: d3 (Ruy Lopez: Morphy Defense, Anderssen Variation) · Bxc6 (Ruy Lopez: Morphy Defense, Bayreuth Variation) · c3 (Ruy Lopez: Morphy Defense, Jaffe Gambit) · d4 (Ruy Lopez: Morphy Defense, Mackenzie Variation)

5... Nxe4Black · your move

Capture the pawn on e4 with your knight. This move signals the start of the Open Ruy Lopez. You are accepting the challenge, winning a pawn temporarily but allowing White to open the center for their rooks and bishops.

Other paths here: g6 (Ruy Lopez: Brix Variation) · d5 (Ruy Lopez: Central Countergambit) · Bc5 (Ruy Lopez: Morphy Defense, Neo-Arkhangelsk Variation) · b5 (Spanish: 5.O-O b5)

6. d4White

White plays d4, the most energetic response. Other moves like Re1 or Qe2 are slower and allow Black to consolidate. By pushing d4, White creates a situation where the center is fluid and the pieces must find active squares quickly.

Other paths here: Qe2 (Ruy Lopez: Morphy Defense, Tartakower Variation) · Nc3 (Ruy Lopez: Open, Knorre Variation) · Re1 (Spanish: Open, 6.Re1)

6... b5Black · your move

Push your pawn to b5 to kick the bishop again. Before you can deal with the central tension, you must force the bishop off the a4-e8 diagonal. This move creates space on the queenside and prepares your development.

Other paths here: exd4 (Ruy Lopez: Open, Riga Variation) · Be7 (Spanish: Open, 6.d4 Be7)

7. Bb3White

White retreats the bishop to b3, its most natural home in these lines. White could also try the Richter Variation with d5, but Bb3 is the classical approach, maintaining the pressure on the d5-square and the kingside.

Other paths here: Nxe5 (Ruy Lopez: Open, Friess Attack) · d5 (Ruy Lopez: Open, Richter Variation)

7... d5Black · your move

Push your pawn to d5. This is the cornerstone of Black's setup in the Open Ruy Lopez. You are solidifying your knight on e4, claiming your share of the center, and opening a path for your light-squared bishop.

8. dxe5White

White takes on e5, a standard move that clarifies the central structure. Alternatives like a4 or c4 are sharper and less common. After the exchange, White has a space advantage on the kingside, while Black has active pieces.

Other paths here: c4 (Ruy Lopez: Open, Harksen Gambit) · a4 (Spanish: Open, 7.Bb3 d5 8.a4) · Nxe5 (Spanish: Open, 8.Nxe5)

8... Be6Black · your move

Develop your bishop to e6. This move is essential to overprotect the d5-pawn and prepare for further development. You are building a solid wall in the center while getting ready to bring your other pieces into the game.

Other paths here: Ne7 (Ruy Lopez: Open, Zukertort Variation)

9. c3White

White plays c3, a typical Spanish maneuver. This prepares Bc2 to preserve the bishop and supports the center. White could also try Nbd2 immediately or the Howell Attack with Qe2, but c3 is the most flexible choice.

Other paths here: Nbd2 (Ruy Lopez: Open, Bernstein Variation) · a4 (Spanish: Open, 8...Be6 9.a4) · Be3 (Spanish: Open, 8...Be6 9.Be3) · Qe2 (Ruy Lopez: Open, Howell Attack)

9... Be7Black · your move

Develop your bishop to e7. This completes your minor piece development on the kingside and prepares you to castle. You are now ready to enter the middlegame with a solid position and active pieces in the center.

Other paths here: Nc5 (Ruy Lopez: Open, Berlin Variation) · Bc5 (Ruy Lopez: Open, Italian Variation)

Where you stand

The position is balanced but full of life. White will likely aim to challenge the e4-knight with Nbd2 and pressure d5, while Black will castle and look to use their active pieces for counterplay on the queenside or in the center. Both sides must navigate the complex pawn structures and piece coordination that define this high-level opening.

• b1-d2 Develop the knight to challenge e4
• b3-c2 Preserve the bishop from being traded
• e8-g8 Castle kingside to secure the king
• c6-a5 Challenge the white bishop on b3
• f1-e1 Place the rook on the open file