Library/Openings/Queen's Gambit Declined/Lasker Defense/Main Line ECO D57
Opening· 19 plies

Queen's Gambit Declined: Lasker Defense, Main Line

An entry in the Encyclopedia of Chess Openings (ECO D57), reached after 19 half-moves: 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. cxd5 Nxc3 10. bxc3.

Queen's Gambit Declined: Lasker Defense, Main Line ECO D57
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Black rook
Black knight
Black bishop
Black rook
Black king
Black pawn
Black pawn
Black pawn
Black queen
Black pawn
Black pawn
Black pawn
Black pawn
White pawn
White pawn
White pawn
White pawn
White knight
White pawn
White pawn
White pawn
White pawn
White rook
White queen
White king
White bishop
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

Queen's Gambit Declined: Lasker Defense, Main Line is an opening in the Encyclopedia of Chess Openings, classified under code D57. 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 19 half-moves from the starting position, with the move sequence 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. cxd5 Nxc3 10. bxc3.

It belongs to the Queen's Gambit Declined family. Within that family this is a level-2 branch (the Lasker Defense → Main Line line). The immediate parent line is Queen's Gambit Declined: Lasker Defense, transitioned via 10.bxc3.

The opening sequence in prose form: 1.d4 d5, 2.c4 e6, 3.Nc3 Be7, 4.Nf3 Nf6, 5.Bg5 h6, 6.Bh4 O-O. 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.