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The Queen's Gambit Declined (or QGD) is a chess opening in which Black declines a pawn offered by White in the Queen's Gambit: 1. d4 d5: 2. c4 e6. This is known as the Orthodox Line of the Queen's Gambit Declined. ... This leads to a variation of the QGD called the Tarrasch Defense. 3...Be7, the Alatortsev Variation.
