Chess Opening Theory/1. d4/1...d5/2. c4/2...c6/3. Nc3/3...dxc4/4. e3/4...b5/5. Nxb5/5...cxb5/6. Qf3/6...Qc7/7. Qxa8/7...Bb7
|Moves: 1. d4 d5 2. c4 c6 3. Nc3 dxc4 4. e3 b5 5. Nxb5 cxb5 6. Qf3 Qc7 7. Qxa8 Bb7|
This is the obvious move and takes away the entire long diagonal from the queen. However, it does seem a bit odd as you are giving away another pawn, thus leaving you down an exchange and a pawn. As said last page, 7...Nc6 loses.
Theory table edit