Library/Openings/Blumenfeld Countergambit Accepted ECO E10
Opening· 12 plies

Blumenfeld Countergambit Accepted

An entry in the Encyclopedia of Chess Openings (ECO E10), reached after 12 half-moves: 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. dxe6 fxe6 6. cxb5 d5.

Blumenfeld Countergambit Accepted ECO E10
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Black rook
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Black bishop
Black queen
Black king
Black bishop
Black rook
Black pawn
Black pawn
Black pawn
Black pawn
Black knight
White pawn
Black pawn
Black pawn
White knight
White pawn
White pawn
White pawn
White pawn
White pawn
White pawn
White rook
White knight
White bishop
White queen
White king
White bishop
White rook
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About this opening

Blumenfeld Countergambit Accepted is an opening in the Encyclopedia of Chess Openings, classified under code E10. ECO group E (E00–E99) covers Indian defences against 1.d4, covering the Nimzo-Indian, Queen's Indian, King's Indian and Catalan systems. This particular variation is reached after 12 half-moves from the starting position, with the move sequence 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. dxe6 fxe6 6. cxb5 d5.

The opening sequence in prose form: 1.d4 Nf6, 2.c4 e6, 3.Nf3 c5, 4.d5 b5, 5.dxe6 fxe6, 6.cxb5 d5. 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.