agb2002: White has a bishop, a knight and a pawn for the bishop pair.
Black threatens bxc3.
White's better development suggests 11.d5:
A) 11... bxc3 12.dxc6 cxb2+ 13.Kb1
A.1) 13... a6 (due to Bb5)
A.1.a) 14.d7+ Bxd7 (14... Nxd7 15.Qc3 Bb7 -due to c7- 16.cxd7+ and 17.Qxh8) 15.cxd7+ Nxd7 unclear.
A.1.b) 14.c7 Qd7 15.Qxb6, with the threat Qb8, looks winning.
A.2) 13... e6 14.d7+
A.2.a) 14... Ke7 15.Qc5+ (or 15.c7 directly) 15... Kf6 16.Qc3+ e5 17.c7 wins decisive material.
A.2.b) 14... Bxd7 15.cxd7+ Ke7 (15... Nxd7 16.Bb5 is winning) 16.Qc5+ Kf6 17.Qc3+ e5 18.f4 seems to win.
A.2.c) 14... Nxd7 15.cxd7+ Bxd7 16.Bb5 as above.
A.3) 13... f6 14.d7+
A.3.a) 14... Kf7 15.c7 wins decisive material.
A.3.b) 14... B(N)xd7 15.cxd7+ looks similar to previous lines.
B) 11... Nxd5 12.Nxd5 cxd5 13.Qe5 f6 14.Qxd5 followed by dxe7 keeps the extra pawn.
C) 11... cxd5 12.Nxd5
C.1) 12... Qxd6 13.Nxb6 Qxb7 14.Qe5 f6 15.Bb5+ Kf7 16.Qd5+ wins an exchange.
C.2) 12... Nxd5 13.Rxd5 keeps the extra pawn.
D) 11... Bd7 12.dxc6
D.1) 12... Bxc6 13.dxe7 Qxe7 14.Ne4 keeps the extra pawn.
D.2) 12... bxc3 13.cxd7+ Qxd7 14.Qxc3 f6 15.Qe3 (15.exd7? Bh6+ wins) wins another pawn.