comment: A rare move, offering a queen exchange. Black faces some problems on the queenside, so this is probably not the most accurate.
context: 1. e2e4  1... c7c5  2. g1f3  2... e7e6  3. d2d4  3... c5d4  4. f3d4  4... b8c6  5. b1c3  5... d8c7  6. c1e3  6... a7a6  7. a2a3 A cunning way of meeting the Taimanov variation. It's much more dangerous than it looks and has been played many times by strong GMs. 7... b7b5 This is probably the most reliable move. 8. d4c6  8... c7c6  9. d1d4 A curious move and not the most popular.