Réti Opening

The Réti Opening (1.Nf3 d5 2.c4) is a hypermodern opening. White does not occupy the centre with pawns, but attacks it from the flanks with the c-pawn, a knight and usually a fianchettoed bishop. It is flexible and can transpose into the English, the Catalan or Queen's Gambit positions.

Origins

The opening is named after the Czechoslovak player Richard Réti (1889–1929), who introduced it in early 1923. Hans Kmoch named it the "Réti Opening" after the game Réti–Rubinstein, Karlovy Vary 1923. Réti's most famous win with it came against the reigning world champion José Raúl Capablanca at the New York tournament of 1924. Alexander Alekhine also played it in the 1920s, and in 2024 Gukesh Dommaraju used it in game 11 of the World Championship.

The idea

White controls the centre from the wings rather than by direct occupation. Typical moves are g3, Bg2, O-O, b3 and Bb2, sometimes with b4 to gain queenside space. White avoids the pawn moves e4 and d4 and expands on the queenside instead.

Main lines

• 2...d4: Black gains space and keeps the game closed. White usually answers 3.e3 or the sharper 3.b4.
• 2...e6 or 2...c6: Black defends d5, and the game often transposes to Queen's Gambit or Slav structures, or to the English Opening.
• 2...dxc4: Black takes the pawn, and White regains it with a slight advantage.

Strengths and weaknesses

Strengths

• Very flexible: White can choose between many structures and avoid the opponent's preparation.
• Solid and positional, with little forcing theory.
• Rich transpositional possibilities, which can confuse opponents who only know one system.

Weaknesses

• Less direct than 1.e4 or 1.d4. Black equalises with sensible play.
• Move-order subtleties: White must know how to handle transpositions.
• After 2...dxc4, White has several options, and none gives a big advantage.

Who should play it

The Réti suits positional players who like flexible, manoeuvring games and want to avoid main-line theory. It is effective against opponents with narrow repertoires built around 1.e4 or 1.d4 replies. It is least effective against solid players who set up a sound centre and simply develop.

The numbers

On Lichess the Réti does well for White: 53–54% for White and 41.1–43.6% for Black below 2200, and 50% against 42% above it. In master games over the board, White wins 34%, Black 24% and 42% are drawn.