Ruy Lopez: Exchange Variation

The Exchange Variation of the Ruy Lopez (1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6) gives up the bishop to damage Black's pawn structure. White gets a long-term plan: play d4 and Qxd4, exchange all the pieces and win the pure pawn ending.

Origins

Max Euwe assessed the pure pawn ending, with all pieces except the kings removed, as a win for White. Emanuel Lasker had great success with the line in the late 19th and early 20th centuries, most famously in his win over José Raúl Capablanca at St. Petersburg 1914. Bobby Fischer turned 5.O-O into a serious weapon in the 1960s, for example in his games against Portisch and Gligorić at the 1966 Havana Olympiad.

The idea

After 4...dxc6 Black has doubled c-pawns but the bishop pair as compensation, so the variation is not considered White's most ambitious. The obvious 5.Nxe5? is weak because of 5...Qd4! 6.Nf3 Qxe4+ 7.Qe2 Qxe2+ 8.Kxe2, when White has no compensation for Black's bishop pair.

Main lines

• 4...dxc6, almost always played:
  • 5.O-O, the most common move, sometimes called the Barendregt Variation after Johan Barendregt (Normal Variation in this database). Unlike 5.d4, it forces Black to defend e5, usually with 5...f6 (Gligorić Variation), 5...Bg4, 5...Qd6 (the sharpest, preparing long castling; Bronstein Variation), 5...Qf6, 5...Qe7 or 5...Bd6 (King's Bishop Variation);
  • 5.Nc3 (Keres Variation), usually met by 5...f6;
  • 5.d4 exd4 6.Qxd4 Qxd4 7.Nxd4, Lasker's line, most often followed by 7...Bd7.
• 4...bxc6, the Lutikov Variation, is much less popular than 4...dxc6. Black gets the half-open b-file, but the central pawn structure becomes awkward.

Strengths and weaknesses

Strengths

• A clear long-term plan based on the better pawn structure.
• White's plan aims at the pawn ending, which Euwe assessed as winning.

Weaknesses

• Black gets the bishop pair as compensation.
• Not considered White's most ambitious try; Black has several sound set-ups after 5.O-O.

Who should play it

The Exchange Variation suits White players who like endgames and clear structural plans, in the style of Lasker and Fischer.

The numbers

On Lichess White leads under 1400, 51.5% against 43.7%, and by a smaller margin above: 48.7% against 46.3% at 1400–1799, 48.9% against 44.7% at 1800–2199 and 48.8% against 41.5% from 2200 up. In about 10,100 master games 52.9% were drawn; White won 26.4% and Black 20.7%.