Queen's Gambit Declined: Chigorin Defense is a chess opening with the ECO code D07, part of the Queen's Gambit Declined family. It goes 1. d4 d5 2. c4 Nc6. White opens with 1. d4 (the queen's pawn) and Black answers 1... d5. After 4 moves it is White to move. The lesson on the board explains every move of the line and lets you play it yourself; it is free.
In chessGM's opening book this position continues with 3. Nf3.
After 1.d4 d5 2.c4, Black keeps the d5 pawn with ...e6 instead of taking on c4. It is solid, classical and very reliable.
chessGM has a full course for this line: open the Queen's Gambit Declined: Chigorin Defense course lesson.