Queen's Pawn Game: Accelerated London System, Steinitz Countergambit Accepted

An entry in the Encyclopedia of Chess Openings (ECO D00), reached after 5 half-moves: 1. d4 d5 2. Bf4 c5 3. dxc5.

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

Queen's Pawn Game: Accelerated London System, Steinitz Countergambit Accepted is an opening in the Encyclopedia of Chess Openings, classified under code D00. ECO group D (D00–D99) covers closed games and semi-closed games beginning 1.d4 d5, covering the Queen's Gambit, Slav, Grünfeld and related queen-pawn structures. This particular variation is reached after 5 half-moves from the starting position, with the move sequence 1. d4 d5 2. Bf4 c5 3. dxc5.

It belongs to the Queen's Pawn Game family. Within that family this is a level-2 branch (the Accelerated London System → Steinitz Countergambit Accepted line). The immediate parent line is Queen's Pawn Game: Accelerated London System, transitioned via 3.dxc5.

The opening sequence in prose form: 1.d4 d5, 2.Bf4 c5, 3.dxc5. 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.