Benoni Defense: Old Benoni, Mujannah Formation

1.d4 c5 2.d5 f5

ECO A43

The Benoni Defense: Old Benoni, Mujannah Formation is a chess opening line in the Benoni Defense complex, reached after 1.d4 c5 2.d5 f5.

It is catalogued under code A43 in the Encyclopaedia of Chess Openings (ECO).

The defining move f5 is chosen by Black on move 2.

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