Bishop's Opening: Calabrese Countergambit, Jaenisch Variation

1.e4 e5 2.Bc4 f5 3.d3

ECO C23

The Bishop's Opening: Calabrese Countergambit, Jaenisch Variation is a chess opening line in the Bishop's Opening complex, reached after 1.e4 e5 2.Bc4 f5 3.d3.

It is catalogued under code C23 in the Encyclopaedia of Chess Openings (ECO).

The defining move d3 is chosen by White on move 3.

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• Catalan Opening
• King's Indian Defense with ...e5

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