Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, San Francisco Gambit
1. e4 c5 2. Nf3 Nc6 3. Bb5 Na5 4. b4
The Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, San Francisco Gambit is a chess opening classified as ECO B30, reached after 1. e4 c5 2. Nf3 Nc6 3. Bb5 Na5 4. b4. It is a line of the Sicilian Defense. Black is to move.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 3 times by this move order. White won 67%, 0% were drawn and Black won 33%. The most popular continuation is 4… cxb4 (100% of games).
Engine evaluation: 0.00 (Stockfish, depth 30; best line 4… cxb4 5. a3 a6 6. Be2 e6 7. O-O)
- ECO
- B30
- Moves
- 7 plies
- FEN
r1bqkbnr/pp1ppppp/8/nBp5/1P2P3/5N2/P1PP1PPP/RNBQK2R b KQkq - 0 4- PGN
1. e4 c5 2. Nf3 Nc6 3. Bb5 Na5 4. b4
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 1500-1999 | 2 | |
| 2000+ | 1 | |
| All | 3 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 4… cxb4 | 3 (100%) |
Master games
5 over-the-board games are classified under this line (White 40%, draw 20%, Black 40%). The strongest:
- IM Christian Braun (2376) – IM Thomas Reich (2352) 1/2-1/2 · Bundesliga 2016-17 · 2017-04-30
- FM Dmitrii Marcziter (2243) – FM Tarun Kanyamarala (2369) 0-1 · Titled Tuesday 8th June · 2021-06-08
- IM German Kochetkov (2277) – CM Guido Schracke (2138) 1-0 · Titled Tue 1st Jul Late · 2025-07-01
- FM Darius Viskelis (2152) – CM Nikolaos Skiadopoulos (1896) 1-0 · Titled Tue 26th Sep Early · 2023-09-26
- FM Evgeniy Burmakin (2110) – CM Nikolaos Skiadopoulos (1882) 0-1 · Titled Tue 10th Jun Early · 2025-06-10
Highest-rated Lichess games
- ciclohexan (2036) – capajan (2021) 1-0 · 2026-09-04 · 180 + 2s
- jullioLOLverygood (1695) – Kielplayzchess (2171) 0-1 · 2026-09-05 · 420 + 3s
- FLX1963 (1500) – MichaelBakh (1554) 1-0 · 2026-09-01 · 180 + 0s
Comes from
Sicilian Defense: Nyezhmetdinov-Rossolimo Attack 1. e4 c5 2. Nf3 Nc6 3. Bb5
More Sicilian Defense lines (all)
- Sicilian Defense (1. e4 c5) B20
- Sicilian Defense: Amazon Attack B20
- Sicilian Defense: Big Clamp Formation B20
- Sicilian Defense: Bowdler Attack B20
- Sicilian Defense: Brick Variation B20
- Sicilian Defense: Czerniak Attack B20
- Sicilian Defense: Czerniak Attack, Queen Fianchetto Variation B20
- Sicilian Defense: Euwe Attack, Prins Gambit B20
- Sicilian Defense: Gloria Variation B20
- Sicilian Defense: Grob Variation B20
- Sicilian Defense: Keres Variation B20
- Sicilian Defense: King David's Opening B20
Opening names and moves from the Lichess openings dataset; statistics from the Lichess open database, 2026-09 (CC0), sample of 12.6 million games, bots excluded; evaluations from Lichess cloud analysis (all CC0). Master games from The Week in Chess #920–#1664 by Mark Crowther, used with permission.