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. 9... c6d6 A rare move, offering a queen exchange. Black faces some problems on the queenside, so this is probably not the most accurate. 10. e1c1  10... d6d4  11. e3d4  11... c8b7  12. f2f3  12... g8e7 A typical maneuver: the knight is heading to c6. It seems that Black is close to equalizing, but now comes a surprise. 13. a3a4 A new move that proves an advantage for White. 13... b5b4  14. c3a2  14... e7c6 