An unorthodox reply to the Queen's Gambit developing the knight to c6 instead of supporting d5 with a pawn. Favored by Chigorin and recently by Morozevich.
Every line in this family begins 1. d4 d5 2. c4 Nc6 3. cxd5 Qxd5 4. e3 e5, then branches. Each variation below has its own page with the full move order, the position it reaches, and a Stockfish evaluation.
All 1 line can be practised free in the browser: pick a variation, walk it move by move in Learn mode, then drill it from memory until you can play it without prompting.
The Chigorin Defense begins 1. d4 d5 2. c4 Nc6 3. cxd5 Qxd5 4. e3 e5. From there it branches into 1 named variation, each with its own move order and typical plans.
The Chigorin Defense is catalogued under ECO code D07. Individual variations list their own specific code on their page.
Open any variation on Chess Ramp and use Learn mode to walk the line one move at a time, then Drill mode to replay it from memory. Practice runs in your browser with no account required.