Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, San Francisco Gambit
1. e4 c5 2. Nf3 Nc6 3. Bb5 Na5 4. b4
4… cxb4−0.10
The position is roughly equal. Stockfish 18, depth 18.
Analyze this positionIn the Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, San Francisco Gambit (B30), reached after 1. e4 c5 2. Nf3 Nc6 3. Bb5 Na5 4. b4, Stockfish 18 recommends 4… cxb4 for Black. The position is roughly equal (−0.10).
Top engine moves
- −0.104… cxb4 5. a3 e6 6. d4 Nf6 7. axb4 Bxb4+ 8. c3 Be7 9. e5
- +0.084… a6 5. Bxd7+ Bxd7 6. bxa5 Qxa5 7. O-O Nf6 8. d3 g6 9. Bd2
- +0.654… Qb6 5. Ba4 Qxb4 6. Nc3 Nc6 7. Rb1 Qa5 8. Rb5 Qc7 9. Nd5
Frequently asked questions
What is the best move in the Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, San Francisco Gambit?
After 1. e4 c5 2. Nf3 Nc6 3. Bb5 Na5 4. b4, Stockfish 18 at depth 18 recommends 4… cxb4 for Black, continuing 5. a3 e6 6. d4 Nf6 7. axb4 Bxb4+ 8. c3 Be7 9. e5. The position is roughly equal (−0.10). The next best moves are 4… a6 (+0.08) and 4… Qb6 (+0.65).
Is the Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, San Francisco Gambit a good opening?
Stockfish rates the position at −0.10: 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, San Francisco Gambit?
B30. 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+).