Tree path 5 levels King's Pawn Game › Sicilian Defense › Closed › Traditional › Sicilian Defense: Closed, Chameleon Variation
  1. Chess Codex
  2. King's Pawn Game B00
  3. Sicilian Defense B20
  4. Closed B23
  5. Traditional B23
  6. Sicilian Defense: Closed, Chameleon Variation B23 you are here
B23

Sicilian Defense: Closed, Chameleon Variation

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Overview

Sicilian Defense: Closed, Chameleon Variation is a specific line in the Semi-Open Games family (ECO B23), arising from a recognised theoretical position.

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. Nc3 Nc6 3. Nge2, after 5 plies of opening development.

The line refines Sicilian Defense: Closed, Traditional, which traces back to the root opening King's Pawn Game.

Explore the position on the interactive board, study its real-world results from Lichess, and challenge the engine when you are ready.

ECO code
B23
Group
Semi-Open Games (B)
Plies
5
Parent
Sicilian Defense: Closed, Traditional

This overview is generated automatically from the opening's metadata. Know this line well? Write a description — submissions are reviewed before publishing.

Statistics from Lichess

450,092 games · White 51.6% / Draw 5.6% / Black 42.8%

MovesGamesW / D / B
g6147,896
e6101,818
d672,619
e554,300
Nf653,659
a611,292
Nd43,775
b61,778

Source: Lichess Opening Explorer · cached 2026-09-26 01:07:44

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