Ruy López

1. e4 e5 2. Nf3 Nc6 3. Bb5

The Ruy López — also called the Spanish Opening — is one of the oldest openings in chess, named after the 16th-century Spanish priest Ruy López de Segura. Every world champion from Steinitz to Carlsen has played it from both sides, and it's produced more theoretical games than any other opening in the 1. e4 e5 family. If you want to play classical chess, you learn the Ruy López.

The core idea

On move three, White plays Bb5, pinning the knight that defends e5. The threat of Bxc6 followed by Nxe5 is rarely real — if Black plays ... dxc6 recapture, the e5-pawn is defended by the queen. But the bishop's mere presence on b5 exerts long-term pressure. White's plan is:

1. Maintain tension in the centre
2. Castle, play c3, prepare d4
3. Retreat the bishop to c2 or b3 (avoiding the exchange) so it stays active long-term
4. Attack on the kingside or play positionally against Black's slightly passive setup

Black's response determines which of several main systems arises.

Main variations

Morphy Defense — 3... a6

The overwhelmingly most popular reply. Black kicks the bishop immediately. White has two serious answers:

• 4. Ba4 (Main Line) — keeps the bishop on the b1–h7 diagonal after the pawn tension is resolved
• 4. Bxc6 dxc6 (Exchange Variation) — simplifies early, aiming for a slightly better endgame with the superior pawn structure

Closed Ruy López — 3... a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O

This is the classical main line and one of the most-played positions in chess history. White has a slow, long-term edge; Black has a solid, flexible position. The main middlegame plans revolve around:

• White preparing d4 at the right moment
• Black preparing ... Na5 or ... Nd7-f8-g6 (the famous Ruy López knight tour) to regroup
• Breakthroughs with ... d5 for Black or the a4/d4 space-grab for White

Famous sub-variations include the Chigorin (9... Na5), the Breyer (9... Nb8), and the Zaitsev (9... Bb7).

Berlin Defense — 3... Nf6

Vladimir Kramnik weaponized the Berlin in his 2000 World Championship match against Kasparov, using it to neutralize Kasparov's famous 1. e4 preparation. After 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8. Qxd8+ Kxd8, Black voluntarily gives up the right to castle but gains a rock-solid structure with the bishop pair. The resulting endgame is drawish against careful play, but White retains a slight initiative.

The Berlin is now standard equipment for top-level Black repertoires when a draw with Black is acceptable.

Marshall Attack — 3... a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5

Frank Marshall sprung this pawn sacrifice on Capablanca in 1918. Black sacrifices the e-pawn for a fast, sharp kingside attack. The theory is enormous and well-worked-out; most top White players avoid the Marshall by playing "Anti-Marshall" lines (e.g., 8. a4, 8. h3, 8. d4) instead of the main 8. c3.

Open Ruy López — 3... a6 4. Ba4 Nf6 5. O-O Nxe4

Black grabs the central pawn immediately. Leads to positions with more piece activity for Black but a weaker pawn structure. A favourite of Viktor Korchnoi; less common now but still playable.

Classical Defense — 3... Bc5

Black develops the bishop naturally instead of kicking the Ruy's bishop. Solid but slightly less flexible than ... a6. Seen occasionally at the top level.

Steinitz Defense — 3... d6

The first world champion's own system. Modern and deferred forms (3... a6 4. Ba4 d6) are still seen. Black plays for solidity over counterplay.

Canonical games to study

• Anderssen – Dufresne, Berlin 1852 ("The Evergreen Game") — played before the Ruy López was fully worked out, but a perfect illustration of the attacking ideas behind 1. e4 e5.
• Karpov – Korchnoi, Baguio 1978, Game 21 — Closed Ruy; positional mastery by Karpov.
• Kasparov – Short, London 1993 (WCC) — Ruy López Zaitsev; Kasparov's preparation at its peak.
• Kramnik – Kasparov, London 2000 (WCC), Game 1 — the Berlin Defense that changed top-level opening theory.
• Carlsen – Anand, Chennai 2013 (WCC), Game 5 — Ruy López Breyer; modern endgame treatment.
• Caruana – Carlsen, London 2018 (WCC) — multiple Ruy López games across the match.

Practical advice

1. Pick a White or Black side first. The Ruy is the rare opening where both colors demand comparable preparation. Decide which color you want to play it with and study that side deeply before the other.
2. Understand the "Spanish torture" endgame. Many Ruy games end in slightly better endgames for White — with a small positional edge converted slowly. If you play White, study Capablanca, Karpov, and Carlsen's endgame technique. If you play Black, study defending these positions.
3. Know the Anti-Marshall and the Berlin. If you play White against the main line, your opponents will steer into one of these. You need an answer ready for both.
4. The knight manoeuvres matter. Nb1-d2-f1-g3 for White and Nb8-d7-f8-g6 for Black are thematic regroupings. Spot them in games; they'll appear in your own.

Related openings

• Italian Game — the friendlier 1. e4 e5 alternative to the Ruy.

• Sicilian Defense — the main way to avoid the Ruy as Black.
• King's Indian Defense — hypermodern counterpart to classical openings like the Ruy.

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