Latvian Gambit: Diepstraten Countergambit

1.e4 e5 2.Nf3 f5 3.c4

ECO C40

The Latvian Gambit: Diepstraten Countergambit is a chess opening line in the Latvian Gambit complex, reached after 1.e4 e5 2.Nf3 f5 3.c4.

It is catalogued under code C40 in the Encyclopaedia of Chess Openings (ECO).

The defining move c4 is chosen by White on move 3.

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

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