The Hamppe-Allgaier Gambit, Alapin Variation is a variation of the Vienna Gambit, with Max Lange Defense, catalogued as ECO C25. The line runs 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h4 g4 6. Ng5 d6, reaching the position shown below after 12 half-moves.
White holds the centre with pawns on e4. Development is level at two minor pieces each, and Black is up a pawn of material. It is White to move after six moves. Black has doubled pawns on the f-file.
On the Vienna Gambit, with Max Lange Defense generally: ECO C25. A chess opening with 15 known variations.
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See all 10 Vienna Gambit, with Max Lange Defense variations →
The Hamppe-Allgaier Gambit, Alapin Variation goes 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h4 g4 6. Ng5 d6. It is a variation of the Vienna Gambit, with Max Lange Defense and is catalogued as ECO C25.
The Hamppe-Allgaier Gambit, Alapin Variation is ECO C25. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Vienna Gambit, with Max Lange Defense.
Stockfish evaluates the position after 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h4 g4 6. Ng5 d6 at -0.94 at depth 18, which is a small but real edge for Black. 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. Development is level at two minor pieces each, and Black is up a pawn of material. It is White to move. Black has doubled pawns on the f-file.