Queen's Gambit Accepted: Gunsberg Defense

An entry in the Encyclopedia of Chess Openings (ECO D21), reached after 6 half-moves: 1. d4 d5 2. c4 dxc4 3. Nf3 c5.

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4.Nc3 1 line
- D24 Prianishenmo Gambit

About this opening

Queen's Gambit Accepted: Gunsberg Defense is an opening in the Encyclopedia of Chess Openings, classified under code D21. 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 6 half-moves from the starting position, with the move sequence 1. d4 d5 2. c4 dxc4 3. Nf3 c5.

It belongs to the Queen's Gambit Accepted family. Within that family this is a sub-variation (the Gunsberg Defense line).

The opening sequence in prose form: 1.d4 d5, 2.c4 dxc4, 3.Nf3 c5. From this position exactly one named continuation is recorded in the encyclopaedia.