Tree path 5 levels King's Pawn Game › Sicilian Defense › Sicilian Defense › Modern Variations › Sicilian Defense
B50

Sicilian Defense

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Overview

Sicilian Defense is a variation within the Semi-Open Games family, indexed as ECO B50.

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 5 plies and takes 1. e4 c5 2. Nf3 d6 3. d4 to reach the canonical position.

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

It branches into 2 notable variations — Sicilian Defense, Modern Variations, Anti-Qxd4 Move Order.

Across every depth of the tree this branch holds 102 documented sub-variations, reflecting decades of analytical work.

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
B50
Group
Semi-Open Games (B)
Plies
5
Parent
Sicilian Defense: Modern Variations
Direct variations
2
Total in subtree
102

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 (2)

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