The Adams' Gambit is a variation of the Vienna Game, catalogued as ECO C27. The line runs 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Nc6 6. d4, reaching the position shown below after 11 half-moves.
Both sides have pawns in the centre (White on d4, Black on e5), and one pawn capture is available, so the structure has not settled yet. Development is level at two minor pieces each, and Black is up a pawn of material. It is Black to move after six moves.
On the Vienna Game generally: White delays Nf3 in favor of Nc3, keeping options open for a kingside attack with f4.
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The Adams' Gambit goes 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Nc6 6. d4. It is a variation of the Vienna Game and is catalogued as ECO C27.
The Adams' Gambit is ECO C27. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Vienna Game.
Stockfish evaluates the position after 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Nc6 6. d4 at -0.73 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.
Both sides have pawns in the centre (White on d4, Black on e5), and one pawn capture is available, so the structure has not settled yet. Development is level at two minor pieces each, and Black is up a pawn of material. It is Black to move.