Vienna Gambit, with Max Lange Defense: Hamppe-Allgaier Gambit

An entry in the Encyclopedia of Chess Openings (ECO C25), reached after 11 half-moves: 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h4 g4 6. Ng5.

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Continue from this position

2 replies continue into sub-variations from this position. Click any to drill deeper.

6…d6 1 line
- C25 Alapin Variation
6…h6 1 line
- C25 Thorold Variation

About this opening

Vienna Gambit, with Max Lange Defense: Hamppe-Allgaier Gambit is an opening in the Encyclopedia of Chess Openings, classified under code C25. ECO group C (C00–C99) covers open games (1.e4 e5) and the French Defence, including the Ruy Lopez, Italian, Scotch and King's Gambit. This particular variation is reached after 11 half-moves from the starting position, with the move sequence 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h4 g4 6. Ng5.

It belongs to the Vienna Gambit, with Max Lange Defense family. Within that family this is a sub-variation (the Hamppe-Allgaier Gambit line).

The opening sequence in prose form: 1.e4 e5, 2.Nc3 Nc6, 3.f4 exf4, 4.Nf3 g5, 5.h4 g4, 6.Ng5. From this position 2 named continuations are recorded in the encyclopaedia, each leading to a distinct theoretical line.