Tree path 8 levels King's Pawn Game › Sicilian Defense › Sicilian Defense › Old Sicilian › Sicilian Defense: Open › Sicilian Defense: Open › Sicilian Defense: Open › Sicilian Defense: Open

B33

Sicilian Defense: Open

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Overview

Sicilian Defense: Open is a variation within the Semi-Open Games family, indexed as ECO B33.

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.

Play reaches this position via 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6, after 8 plies of opening development.

It is a variation of Sicilian Defense: Open, which itself descends from the root opening King's Pawn Game.

It is the root of 14 named variations, with Sicilian Defense: Boleslavsky Variation, Sicilian Defense: Boleslavsky Variation, Louma Variation, Sicilian Defense: Classical Variation, Anti-Sozin Variation, and others among the most studied.

In total, the branch covers 29 sub-variations across all depths.

Step through the moves on the interactive board below, review the live Lichess statistics, or play this position against Stockfish at one of six difficulty levels.

ECO code: B33
Group: Semi-Open Games (B)
Plies: 8
Parent: Sicilian Defense: Open
Direct variations: 14
Total in subtree: 29

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.

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Variations (14)

Show all 29 sub-variations (full subtree)

Overview

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Variations (14)

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