ECO B56 · Sicilian Defense

Sicilian Defense: Classical Variation, Fianchetto Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3

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Black to move. The arrow shows Stockfish’s best move.
Best move

6… g6+0.01

The position is roughly equal. Stockfish 18, depth 18.

Analyze this position

In the Sicilian Defense: Classical Variation, Fianchetto Variation (B56), reached after 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3, Stockfish 18 recommends 6… g6 for Black. The position is roughly equal (+0.01).

Top engine moves

  1. +0.016… g6 7. Nxc6 bxc6 8. e5 dxe5 9. Qxd8+ Kxd8 10. Bg2 Kc7 11. O-O
  2. +0.196… Bd7 7. Bg5 e6 8. Qd2 Nxd4 9. Qxd4 h6 10. Bxf6 Qxf6 11. Qxf6
  3. +0.266… e6 7. Bg2 Bd7 8. Ndb5 Qb8 9. a4 Be7 10. Na3 O-O 11. O-O

Frequently asked questions

What is the best move in the Sicilian Defense: Classical Variation, Fianchetto Variation?
After 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3, Stockfish 18 at depth 18 recommends 6… g6 for Black, continuing 7. Nxc6 bxc6 8. e5 dxe5 9. Qxd8+ Kxd8 10. Bg2 Kc7 11. O-O. The position is roughly equal (+0.01). The next best moves are 6… Bd7 (+0.19) and 6… e6 (+0.26).
Is the Sicilian Defense: Classical Variation, Fianchetto Variation a good opening?
Stockfish rates the position at +0.01: the position is roughly equal. Evaluations this early in the game are small, so practical results depend far more on knowing the plans and typical structures than on the engine's number.
What is the ECO code of the Sicilian Defense: Classical Variation, Fianchetto Variation?
B56. ECO codes classify chess openings from A00 to E99; B is the volume for semi-open games (other than the French).

Opening names from the Lichess opening book (CC0). Pieces by Colin M.L. Burnett (GPLv2+).