The Poisoned Pawn Variation is a variation of the Sicilian, Najdorf Variation, catalogued as ECO B97. The line runs 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6, reaching the position shown below after 14 half-moves.
White holds the centre with pawns on e4. White is ahead in development, with three minor pieces out to Black's one. It is White to move after seven moves.
On the Sicilian, Najdorf Variation generally: The most popular and deeply analyzed Sicilian variation. 5...a6 prepares ...e5 and gives Black enormous flexibility. Bobby Fischer's weapon of choice.
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The Poisoned Pawn Variation goes 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6. It is a variation of the Sicilian, Najdorf Variation and is catalogued as ECO B97.
The Poisoned Pawn Variation is ECO B97. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Sicilian, Najdorf Variation.
Stockfish evaluates the position after 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 at +0.29 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.
White holds the centre with pawns on e4. White is ahead in development, with three minor pieces out to Black's one. It is White to move.