1.g4!
1.Nf2 Kf6 2.Kf4 Kg7 3.g4 hxg4 4.Nxg4 Nxc4!
1...
Nxg4
2.Kf4
Nf6
If 2... Kf6 3.e5+! Nxe5 4.Nxe5 dxe5 5.Ke4 and the pawn ending is won
3.e5+
dxe5
4.Nxe5
Kd6
5.Nxg6
Nxd5+
6.cxd5
c4
7.Ke4
cxb3
8.Ne5
And Black resigned
Razuvaev-Ostojic (1988)