Tree path 8 levels King's Pawn Game › Sicilian Defense › Closed › Traditional › Sicilian Defense: Closed, Fianchetto Variation › Sicilian Defense: Closed › Sicilian Defense: Closed › Sicilian Defense: Closed
B25

Sicilian Defense: Closed

Open in Lichess
Share: X Reddit Telegram Facebook
Play from here → Click pieces to play, or use ← / → arrows.

Overview

Sicilian Defense: Closed is a named branch in the Semi-Open Games group of chess theory, classified under ECO B25.

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.

The line arises from 10 plies — specifically the moves 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6.

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

3 named variations grow from this line, including Sicilian Defense: Closed, Sicilian Defense: Closed, Botvinnik Defense, with Nge2.

Together the deeper variations number 5 across the full subtree.

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
B25
Group
Semi-Open Games (B)
Plies
10
Parent
Sicilian Defense: Closed
Direct variations
3
Total in subtree
5

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

Loading…

Description

Write a description

Markdown supported (headings ###, bold, lists, links). Submissions are reviewed before publishing.

Variations (3)

Show all 5 sub-variations (full subtree)