Library/Openings/Blackmar-Diemer Gambit Declined/Langeheinicke Defense ECO D00
Opening· 8 plies

Blackmar-Diemer Gambit Declined: Langeheinicke Defense

An entry in the Encyclopedia of Chess Openings (ECO D00), reached after 8 half-moves: 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 e3.

Blackmar-Diemer Gambit Declined: Langeheinicke Defense ECO D00
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Black rook
Black knight
Black bishop
Black queen
Black king
Black bishop
Black rook
Black pawn
Black pawn
Black pawn
Black pawn
Black pawn
Black pawn
Black pawn
Black knight
White pawn
White knight
Black pawn
White pawn
White pawn
White pawn
White pawn
White pawn
White pawn
White rook
White bishop
White queen
White king
White bishop
White knight
White rook
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End of this line

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About this opening

Blackmar-Diemer Gambit Declined: Langeheinicke Defense 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 8 half-moves from the starting position, with the move sequence 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 e3.

The opening sequence in prose form: 1.d4 d5, 2.e4 dxe4, 3.Nc3 Nf6, 4.f3 e3. 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.