Blumenfeld Countergambit

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 b5

ECO E10

The Blumenfeld Countergambit is a chess opening reached after 1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 b5, catalogued under code E10 in the Encyclopaedia of Chess Openings (ECO).

The defining move b5 is chosen by Black on move 4.

2 named continuations branch from this position, including the Duz-Khotimirsky Variation and the Spielmann Variation.

Named variations

• Blumenfeld Countergambit: Duz-Khotimirsky Variation — ECO E10
• Blumenfeld Countergambit: Spielmann Variation — ECO E10

Study this line with a grandmaster

This position is covered in the The Modern Benoni course: a GM-authored repertoire you study move by move, then practice against a human-like AI opponent.

Every chess term used here is defined in the chess terms glossary. Browse all opening courses or the full ECO code index.