Tree path 6 levels King's Pawn Game › Sicilian Defense › Closed › Sicilian Defense: Closed › Sicilian Defense: Closed › Korchnoi Defense

B23

Sicilian Defense: Closed, Korchnoi Defense

Open in Lichess

Play from here → Click pieces to play, or use ← / → arrows.

Overview

Sicilian Defense: Closed, Korchnoi Defense is a named branch in the Semi-Open Games group of chess theory, classified under ECO B23.

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 6 plies of play, with the move sequence 1. e4 c5 2. Nc3 e6 3. g3 d5.

In the opening tree, this line branches off from Sicilian Defense: Closed, 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: B23
Group: Semi-Open Games (B)
Plies: 6
Parent: Sicilian Defense: Closed

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.