Queen's Gambit Declined: Cambridge Springs Defense

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5

Queen's Gambit Declined: Cambridge Springs Defense is catalogued under ECO code D52. It is reached after 6 moves (12 half-moves): 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5. After the last move it is White to play. White opens 1. d4. It is a named variation of the Queen's Gambit Declined, which has 198 catalogued lines in total.

Position shown after the last move; White to play.