The Scheveningen Variation, Delayed Keres Attack, Perenyi Gambit is a variation of the Sicilian Defense, catalogued as ECO B90. The line runs 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. g4 e5 8. Nf5 g6 9. g5, reaching the position shown below after 17 half-moves.
Both sides have pawns in the centre (White on e4, Black on e5). White is ahead in development, with three minor pieces out to Black's one. It is Black to move after nine moves.
On the Sicilian Defense generally: The most popular and aggressive response to 1.e4. Black fights for the center asymmetrically, leading to rich tactical play.
You can play through this variation move by move in your browser — Learn mode walks the line with an explanation at each step, and Drill mode replays it from memory so you find out whether you actually know it. No account is required.
See all 238 Sicilian Defense variations →
The Scheveningen Variation, Delayed Keres Attack, Perenyi Gambit goes 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. g4 e5 8. Nf5 g6 9. g5. It is a variation of the Sicilian Defense and is catalogued as ECO B90.
The Scheveningen Variation, Delayed Keres Attack, Perenyi Gambit is ECO B90. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Sicilian Defense.
Stockfish evaluates the position after 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. g4 e5 8. Nf5 g6 9. g5 at +0.45 at depth 18, which is a slight pull for White, within normal opening margins. Engine evaluation is only a starting point — at club level the practical value of a line is mostly about whether you know its plans better than your opponent does.
Both sides have pawns in the centre (White on e4, Black on e5). White is ahead in development, with three minor pieces out to Black's one. It is Black to move.