Tree path 5 levels King's Pawn Game › Sicilian Defense › Sicilian Defense › O'Kelly Variation › Venice System
B28

Sicilian Defense: O'Kelly Variation, Venice System

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Overview

Sicilian Defense: O'Kelly Variation, Venice System is a named branch in the Semi-Open Games group of chess theory, classified under ECO B28.

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 a6 3. c3 to reach the canonical position.

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

4 named variations grow from this line, including Barcza Line, Gambit Line, Ljubojevic Line, and others.

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
B28
Group
Semi-Open Games (B)
Plies
5
Parent
Sicilian Defense: O'Kelly Variation
Direct variations
4

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

718,808 games · White 49.9% / Draw 5.5% / Black 44.6%

MovesGamesW / D / B
d5216,479
e6169,939
Nc6101,724
b568,390
d667,832
Nf646,338
g626,472
h66,012

Source: Lichess Opening Explorer · cached 2026-09-26 01:08:18

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Variations (4)