Queen's Gambit Accepted: Classical Defense

An entry in the Encyclopedia of Chess Openings (ECO D26), reached after 10 half-moves: 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5.

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6.O-O 7 lines

About this opening

Queen's Gambit Accepted: Classical Defense is an opening in the Encyclopedia of Chess Openings, classified under code D26. 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 10 half-moves from the starting position, with the move sequence 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5.

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

The opening sequence in prose form: 1.d4 d5, 2.c4 dxc4, 3.Nf3 Nf6, 4.e3 e6, 5.Bxc4 c5. From this position exactly one named continuation is recorded in the encyclopaedia.