English Defense: Hartlaub Gambit Accepted

An entry in the Encyclopedia of Chess Openings (ECO A40), reached after 10 half-moves: 1. c4 e6 2. d4 b6 3. Nc3 Bb7 4. e4 f5 5. exf5 Nf6.

Black rook — Use ← → arrows or click moves to step through.

Black knight — Use ← → arrows or click moves to step through.

End of this line

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

About this opening

English Defense: Hartlaub Gambit Accepted is an opening in the Encyclopedia of Chess Openings, classified under code A40. ECO group A (A00–A99) covers flank and irregular openings, including the English, Bird, Réti and Dutch defences. This particular variation is reached after 10 half-moves from the starting position, with the move sequence 1. c4 e6 2. d4 b6 3. Nc3 Bb7 4. e4 f5 5. exf5 Nf6.

It belongs to the English Defense family. Within that family this is a sub-variation (the Hartlaub Gambit Accepted line).

The opening sequence in prose form: 1.c4 e6, 2.d4 b6, 3.Nc3 Bb7, 4.e4 f5, 5.exf5 Nf6. 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.