ECO D37

Queen's Gambit Declined: Three Knights Variation

Queen's Gambit Declined: Three Knights Variation is a chess opening classified under ECO D37. Its defining line here is 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3.

Queen's Gambit Declined: Three Knights Variation — board position♜♞♝♛♚♝♜♟♟♟♟♟♟♟♞♟♟♟♞♞♟♟♟♟♟♟♜♝♛♚♝♜

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3

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The diagram shows the position after 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3. 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.

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