ECO C30

King's Gambit Declined: Queen's Knight Defense

King's Gambit Declined: Queen's Knight Defense is a chess opening classified under ECO C30. Its defining line here is 1. e4 e5 2. f4 Nc6.

King's Gambit Declined: Queen's Knight Defense — board position♜♝♛♚♝♞♜♟♟♟♟♟♟♟♞♟♟♟♟♟♟♟♟♟♜♞♝♛♚♝♞♜

1. e4 e5 2. f4 Nc6

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The diagram shows the position after 1. e4 e5 2. f4 Nc6. Play through it move by move in the interactive explorer.

Opening name, ECO code, and main line come from the Lichess open chess openings dataset.