Tree path 9 levels King's Pawn Game › Sicilian Defense › Sicilian Defense › French Variation › Open › Sicilian Defense: Taimanov Variation › Sicilian Defense: Taimanov Variation › Sicilian Defense: Four Knights Variation › Exchange Variation
B45

Sicilian Defense: Four Knights Variation, Exchange Variation

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Overview

Sicilian Defense: Four Knights Variation, Exchange Variation is a named branch in the Semi-Open Games group of chess theory, classified under ECO B45.

The Semi-Open Games group covers semi-open games — replies to 1.e4 where Black declines the symmetrical 1…e5 in favour of an asymmetric pawn structure.

It begins with 11 plies and takes 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Nxc6 to reach the canonical position.

In the opening tree, this line branches off from Sicilian Defense: Four Knights Variation, part of the broader King's Pawn Game system.

Use the board to walk through every move, check how the position has scored on Lichess, or take it head-to-head against Stockfish.

ECO code
B45
Group
Semi-Open Games (B)
Plies
11
Parent
Sicilian Defense: Four Knights Variation

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