Ruy Lopez

The famously solid 3...Nf6, which often leads to an early queen trade and a complex endgame. Popularised at the highest level by Kramnik, the Berlin is prized for its resilience - Black accepts a slightly worse structure for superb piece activity and drawing chances.

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6…

The classical mainline where Black plays ...Be7, ...b5, ...d6 and ...O-O, building a solid but flexible position. White manoeuvres with Re1, h3, and Bc2, preparing a slow build-up. One of the deepest and most strategically rich systems in all of chess.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6…

A legendary gambit where Black sacrifices a pawn with 8...d5 for a ferocious kingside attack. The Marshall demands precise preparation from both sides - White must know the defensive resources, while Black gets long-lasting initiative with active pieces and open lines.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6…

White captures on c6 early with 4.Bxc6, doubling Black's pawns and aiming for a favourable endgame. Though the position simplifies, White retains a healthy kingside majority and can press in a long technical battle. Black compensates with the bishop pair and active piece play.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6…

Black strikes immediately with 5...Nxe4, winning the e4 pawn and opening the position. White gets rapid development and central pressure in return, leading to sharp tactical play. Both sides must navigate concrete lines accurately to maintain the balance.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6…

Black fianchettoes with ...b5 and ...Bb7 without first playing ...d6, aiming for a more dynamic setup. The Arkhangelsk leads to complex middlegames where Black's active bishop on b7 puts pressure on e4 and the long diagonal, while White must decide how to handle the flexible black position.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6…

Black develops with 3...Bc5, placing the bishop actively and putting immediate pressure on f2. While less popular than the Morphy Defence at the top level, the Classical is a principled and sound approach that leads to open, tactical games with chances for both sides.

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5…

Sidestepping the Marshall Attack while keeping all positional trumps.

White plays 8.h3 (or 8.a4) to sidestep the dreaded Marshall Attack, refusing to allow the ...d5 pawn sacrifice. After 8.h3, White creates a luft for the king and prepares to meet ...d5 with calmer continuations. The Anti-Marshall has become the practical choice at top level for players who prefer not to memorise 30 moves of Marshall theory.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6…

Navigating the famous Berlin endgame with the bishop pair.

The famous queenless middlegame that Kramnik used to defeat Kasparov in their 2000 World Championship match. After 4.O-O Nxe4 5.d4 Nd6 6.Bxc6 dxc6 7.dxe5 Nf5 8.Qxd8+ Kxd8, an endgame arises where Black has the bishop pair and a damaged structure but lost castling rights. Drawn at the highest level countless times - a fortress disguised as an endgame.

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6…

Avoiding Marshall theory while keeping a healthy space advantage.

White sidesteps the Marshall Attack entirely with 8.h3, keeping the option of d4 and stopping ...Bg4. The play is slower and more strategic, revolving around the d5 break and pressure down the e-file.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6…

Building the c3-d4 centre against a solid, compact defence.

Black inserts ...a6 before the solid ...d6, keeping the bishop pair option with ...b5. The resulting positions are compact and low-risk for Black, and White plays c3 and d4 to build the classic Spanish centre.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6…

Converting a superior pawn structure through simple exchanges.

White captures on c6 only after castling and ...Be7, giving Black doubled pawns without allowing the usual counterplay. The plan is simple: trade pieces, play d3 and Nbd2, and head for a favourable endgame.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6…

Keeping queens on and outplaying the Berlin in a slow middlegame.

White avoids the Berlin Endgame by supporting e4 with 4.d3, keeping queens on the board. Play resembles a Giuoco Pianissimo, with slow build-up, Nbd2-f1-g3 manoeuvres and a later d4 break.

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6…

Black plays the ultra-aggressive 3...f5, immediately challenging White's centre with a gambit-like thrust. Also known as the Jaenisch Gambit, this sharp line leads to wild tactical complications and demands precise preparation from both sides. Black sacrifices structural integrity for active piece play and counter-attacking chances on the kingside.

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5…

Supporting e4 with the queen and rerouting the rook to d1.

White plays the unusual 6.Qe2, intending to support the e4 pawn with the queen and free the f1 rook for d1 instead of e1. Named after the British player Thomas Worrall, this sidesteps mainstream Marshall and Closed Ruy theory while still aiming for the standard d4 break. Practical and surprisingly venomous against unprepared opponents.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6…

Meeting Black's offbeat ...Nge7 with a strong central break.

Black plays the rare 3...Nge7, an offbeat but principled defence that defends the c6 knight and prepares ...g6 with a King's Indian-style fianchetto. Named after the 18th-century Italian theorist Carlo Cozio, this surprise weapon avoids all the heavy mainline theory and steers play into unfamiliar territory.

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7…

Navigating the forcing tactical lines of the Schliemann mainline.

The critical test of the Schliemann gambit, where White accepts the challenge with 4.Nc3 fxe4 5.Nxe4. After 5...d5 6.Nxe5 dxe4 7.Nxc6 Qg5, sharp tactical complications erupt. Both sides must navigate concrete forcing lines accurately - a single inaccuracy can decide the game in either direction.

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5…

Playing the white side of a long-term pawn sacrifice for the initiative.

Black sacrifices a pawn with 8...d5 for a lasting initiative against the white king. After 11.Rxe5 c6 Black follows with ...Bd6, ...Qh4 and ...Bg4, generating pressure that has held up for a century of analysis.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6…

Meeting a sharp exchange sacrifice in the Open Spanish.

In the Open Ruy Lopez Black plays the spectacular ...Nxf2, giving up two pieces for rook and pawn to shatter White's kingside. Concrete calculation matters more than general rules here, so learn the sequence precisely.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6…

Handling Black's most active bishop placement in the Spanish.

Black develops the dark-squared bishop actively to c5 before ...d6, aiming at f2 and avoiding the slow Closed Spanish manoeuvring. White replies with c3, a4 and d4 to challenge the bishop and open the centre.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6…

Punishing an early knight sortie with calm central development.

Black jumps 3...Nd4 immediately, offering a trade that gives Black a strong d4 pawn and open lines for the pieces. It is a practical surprise weapon, and White should react calmly with d3, c3 and central play.

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4…

Black plays the solid 4...d6 after first inserting ...a6 and Ba4, building a quiet, classical setup. Named after the first world champion Wilhelm Steinitz, this defence avoids the heavy theory of the mainline Closed Variation while keeping the position flexible. Black plans ...Nf6, ...Be7 and ...O-O, with a healthy if slightly cramped position.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6…

Karpov's deep positional system with ...Bb7 and pressure on e4.

Karpov's signature defence in the Closed Ruy, where Black plays 9...Bb7 to develop the bishop actively along the long diagonal and prepare ...Re8 with pressure on e4. White must decide between the repetition with Ng5-f3 or pushing for advantage with d4. A deeply strategic line favoured at the highest level for decades.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6…

Regrouping with Nb8-d7 to reach a flexible, harmonious setup.

Black plays the paradoxical 9...Nb8, retreating the knight to redeploy it via d7 to a more harmonious square. Named after the Hungarian master Gyula Breyer, this deeply strategic system aims for a flexible setup with ...Bb7, ...Nbd7 and ...c5. Famously employed by Spassky and Karpov to neutralise White's central pressure.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6…

The classical ...Na5 and ...c5 queenside expansion plan.

The classical Closed Ruy mainline, where Black plays 9...Na5 to chase White's bishop and prepare ...c5 with queenside expansion. Named after Mikhail Chigorin, this is the most thematic Closed Ruy plan: build a queenside pawn majority and challenge White's centre with ...Nc6 and ...d5 at the right moment.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6…

Smyslov's flexible ...h6 setup that avoids early commitments.

Black plays the flexible 9...h6, sidestepping the immediate commitment of ...Na5 or ...Nb8 while preparing ...Re8, ...Bf8 and a slow regrouping. Named after world champion Vasily Smyslov, this modern system keeps multiple options open and avoids sharp tactical lines based on Bg5 pins.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6…

Handling the Open Ruy mainline with ...b5, ...d5 and ...Be6.

The full mainline of the Open Ruy Lopez, where Black follows 5...Nxe4 with 6...b5, 7...d5 and develops the light-squared bishop to e6. Black gains space and active piece play in exchange for structural weaknesses. White's typical plan involves c3, Nbd2-b3, and pressure against the Black centre with a4 and Be3.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6…