With the double idea of 9...Nxe4 and 9...Ref8. Black is clearly better – Beliavsky.
Redirecting the passive bishop to the h3-c8 diagonal where it will complicate Black's long castling.
1...Nxg3? 2.Rh8 Bf8 3.Bh3 Qd6 4.Qe1! Ngh5 5.f4 , destroying the black defence
The game saw 2.Rh8+?! Bf8 3.Bh3 Qd6 4.f4 Nxd5 and Black eventually saved a draw.
Intending Qh5-h7, as well as 8 Qg4! followed by 9 Nf6. White has an overwhelming initiative.