?! Inaccurate. White loses time defending the Bishop.
2... e6 3. Nb1c3 a6 4. d4 b5
Black has a space advantage and a time advantage.
5. Bc4e2 cxd4 6. Qd1xd4 Nb8c6
Gaining more time.
7. Qd4d1 Ng8f6
White should play to control the d6 square before Black can advance the d-pawn.
8. Bc1g5 Bf8e7 9. Ng1f3 Bc8b7 10. O-O d5
!? The ship on d6 has sailed. White can win a pawn via: BxN and exd5, but Black gets excellent compensation because of the advantage of the two bishops.