The Hartlaub Gambit Accepted is a variation of the English Defense, catalogued as ECO A40. The line runs 1. c4 e6 2. d4 b6 3. Nc3 Bb7 4. e4 f5 5. exf5 Nf6, reaching the position shown below after 10 half-moves.
White holds the centre with pawns on d4, and one pawn capture is available, so the structure has not settled yet. Development is level at one minor pieces each, and White is up a pawn of material. It is White to move after five moves. White has doubled pawns on the f-file.
On the English Defense generally: ECO A40. A chess opening with 7 known variations.
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The Hartlaub Gambit Accepted goes 1. c4 e6 2. d4 b6 3. Nc3 Bb7 4. e4 f5 5. exf5 Nf6. It is a variation of the English Defense and is catalogued as ECO A40.
The Hartlaub Gambit Accepted is ECO A40. ECO codes group openings by their move order, so nearby codes cover closely related lines of the English Defense.
Stockfish evaluates the position after 1. c4 e6 2. d4 b6 3. Nc3 Bb7 4. e4 f5 5. exf5 Nf6 at +1.39 at depth 18, which is a small but real edge for White. 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 d4, and one pawn capture is available, so the structure has not settled yet. Development is level at one minor pieces each, and White is up a pawn of material. It is White to move. White has doubled pawns on the f-file.