Library/Openings/Vienna Game/Paulsen Variation/Mariotti Gambit ECO C25
Opening· 10 plies

Vienna Game: Paulsen Variation, Mariotti Gambit

An entry in the Encyclopedia of Chess Openings (ECO C25), reached after 10 half-moves: 1. e4 e5 2. Nc3 Nc6 3. g3 Bc5 4. Bg2 h5 5. Nf3 h4.

Vienna Game: Paulsen Variation, Mariotti Gambit ECO C25
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Black rook
Black bishop
Black queen
Black king
Black knight
Black rook
Black pawn
Black pawn
Black pawn
Black pawn
Black pawn
Black pawn
Black knight
Black bishop
Black pawn
White pawn
Black pawn
White knight
White knight
White pawn
White pawn
White pawn
White pawn
White pawn
White pawn
White bishop
White pawn
White rook
White bishop
White queen
White king
White rook
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End of this line

No further variations branch from this position in our database. To explore neighbouring ideas:

About this opening

Vienna Game: Paulsen Variation, Mariotti 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 10 half-moves from the starting position, with the move sequence 1. e4 e5 2. Nc3 Nc6 3. g3 Bc5 4. Bg2 h5 5. Nf3 h4.

It belongs to the Vienna Game family. Within that family this is a level-2 branch (the Paulsen Variation → Mariotti Gambit line). The immediate parent line is Vienna Game: Paulsen Variation, transitioned via 5…h4.

The opening sequence in prose form: 1.e4 e5, 2.Nc3 Nc6, 3.g3 Bc5, 4.Bg2 h5, 5.Nf3 h4. From this position the encyclopaedia records no further canonical continuations — practical play branches into unnamed transpositions or returns to the parent line for alternative ideas.