B24

Sicilian Defense: Closed, Fianchetto Variation

Chess diagram: Sicilian Defense: Closed, Fianchetto Variation after 3. g3

Type a move and press Enter: e4, Nf3, O-O, or from and to squares like g1f3 (e7e8q to promote). The board is also played with the mouse.

Play any move on the board to explore from there, or step through the line with ‹ › and the arrow keys.

Statistics from Lichess

2,435,912 games: White 51.5% / Draw 5.6% / Black 42.9%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
Sicilian Defense: Closed 1,105,1021.1M
450,720451K
382,389382K
219,795220K
171,122171K
52,16452K
16,68717K
16,02116K

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Oct 31, 2026

Engine evaluation

−0.04 The position is about equal

Best play: 3... g6 4. d3 d6 5. Bg2 Bg7 6. Nge2 e5 7. Nd5 Nge7 8. O-O

Stockfish 19, depth 30, after the line's last move. Scores are in pawns, from White's side.

By rating

Rating changes little here: White scores 52% under 1400, 53% at 2200 and up and 46% in master games (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 70K
1400–1799 506K
1800–2199 1.6M
2200 and up 511K
Masters, over the board 7,822

Master games

Rated blitz, rapid and classical Lichess games by rating band, and over-the-board games of players rated 2200+ from the Lichess masters database, updated Sep 26, 2026

Overview

Sicilian Defense: Closed, Fianchetto Variation (ECO B24, Semi-Open Games) is a variation of the Sicilian Defense: Closed, Traditional, reached after 1. e4 c5 2. Nc3 Nc6 3. g3 (3 moves).

In 2,435,912 rated Lichess games between players rated 1600 to 2500, White won 51.5%, Black 42.9% and 5.6% were drawn. Black's most played move here is 3…g6, in 45% of those games.

It continues into one named variation, Sicilian Defense: Closed. In all, 9 named lines continue from it.

Written from the Lichess opening list and explorer. Know this line well? Write about it.

Write a description or report a mistake
What would you like to send?

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

How to play against the Sicilian Defense: Closed, Fianchetto Variation

The most played answer, 3…g6 (Sicilian Defense: Closed), also scores best for Black: 47.5%, with Black winning 44.5% and White 49.4% of 1.1M games. Of the main answers, 3…d6 scores lowest: 43.7%. Stockfish's first choice is also 3…g6.

Main answers: those played in at least 5% of these games. Score: Black's wins plus half the draws, in rated Lichess games between players rated 1600 to 2500. How to play against other popular openings

Popularity by year

The Sicilian Defense: Closed, Fianchetto Variation peaked in 2019 at 0.12% of Lichess games and has slipped since: 0.09% in 2025.

Numbers by year
YearShare of gamesGames
20160.092%32,764
20170.1%55,474
20180.11%85,399
20190.12%148,313
20200.12%342,601
20210.092%360,808
20220.086%323,221
20230.087%325,570
20240.084%301,782
20250.09%313,366
2026 (Jan–Apr)0.096%105,438

Share of rated Lichess games between players rated 1600 to 2500 (blitz, rapid and classical) that reach this position, by year; 2026: January to April. Which openings are rising and falling

Variations (1)

All 9 named lines that continue from here

Cite this page

Caissa Codex. “Sicilian Defense: Closed, Fianchetto Variation (B24)”. Lichess data as of 31 Oct 2026. https://chesscodex.org/openings/sicilian-defense-closed-fianchetto-variation