ECO B88 · Sicilian Defense

Sicilian Defense: Sozin Attack, Fischer Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Bb3 Be7 8. Be3 O-O 9. f4

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

9… e5+0.13

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

Analyze this position

In the Sicilian Defense: Sozin Attack, Fischer Variation (B88), reached after 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Bb3 Be7 8. Be3 O-O 9. f4, Stockfish 18 recommends 9… e5 for Black. The position is roughly equal (+0.13).

Top engine moves

  1. +0.139… e5 10. Nf3 a5 11. fxe5 dxe5 12. Qxd8 Rxd8 13. Bb6 Rd7 14. O-O
  2. +0.219… Nxd4 10. Bxd4 b5 11. e5 dxe5 12. fxe5 Nd7 13. O-O Nc5 14. Nxb5
  3. +0.249… a5 10. a4 d5 11. e5 Nd7 12. Ncb5 Nc5 13. c3 Nxd4 14. Bxd4

Frequently asked questions

What is the best move in the Sicilian Defense: Sozin Attack, Fischer Variation?
After 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Bb3 Be7 8. Be3 O-O 9. f4, Stockfish 18 at depth 18 recommends 9… e5 for Black, continuing 10. Nf3 a5 11. fxe5 dxe5 12. Qxd8 Rxd8 13. Bb6 Rd7 14. O-O. The position is roughly equal (+0.13). The next best moves are 9… Nxd4 (+0.21) and 9… a5 (+0.24).
Is the Sicilian Defense: Sozin Attack, Fischer Variation a good opening?
Stockfish rates the position at +0.13: 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: Sozin Attack, Fischer Variation?
B88. 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+).