Tree path 8 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
- Chess Codex
- King's Pawn Game B00
- Sicilian Defense B20
- Sicilian Defense B27
- French Variation B40
- Open B40
- Sicilian Defense: Taimanov Variation B44
- Sicilian Defense: Taimanov Variation B45
- Sicilian Defense: Four Knights Variation B45 you are here
Sicilian Defense: Four Knights Variation
Overview
Sicilian Defense: Four Knights 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 is reached after 10 plies of play, with the move sequence 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6.
In the opening tree, this line branches off from Sicilian Defense: Taimanov Variation, part of the broader King's Pawn Game system.
4 named variations grow from this line, including American Attack, Cobra Variation, Exchange Variation, and others.
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
- 10
- Direct variations
- 4
This overview is generated automatically from the opening's metadata. A more detailed, human-written description is on the way — and you can speed it up by suggesting one yourself.
Statistics from Lichess
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Source: Lichess Opening Explorer · cached
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