ECO B31 · Sicilian Defense

Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Totsky Attack

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 6. Qa4

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

6… a6+0.01

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

Analyze this position

In the Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Totsky Attack (B31), reached after 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 6. Qa4, Stockfish 18 recommends 6… a6 for Black. The position is roughly equal (+0.01).

Top engine moves

  1. +0.016… a6 7. Re1 Na5 8. Bf1 b5 9. Qd1 Bb7 10. e5 Nd5 11. d4
  2. +0.066… O-O 7. d4 cxd4 8. cxd4 Nxe4 9. d5 Nc5 10. Qa3 Qb6 11. Nc3
  3. +0.076… e5 7. d3 O-O 8. Be3 d6 9. Bxc6 bxc6 10. Qxc6 Rb8 11. Nbd2

Frequently asked questions

What is the best move in the Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Totsky Attack?
After 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 6. Qa4, Stockfish 18 at depth 18 recommends 6… a6 for Black, continuing 7. Re1 Na5 8. Bf1 b5 9. Qd1 Bb7 10. e5 Nd5 11. d4. The position is roughly equal (+0.01). The next best moves are 6… O-O (+0.06) and 6… e5 (+0.07).
Is the Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Totsky Attack 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: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Totsky Attack?
B31. 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+).