1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.c3 dxc3 5.Nxc3 Nc6 6.Bc4
Nf6? 7.e5
Nxe5?
FIG. 4
(7...
dxe5
, 7...
Ng4
, 7...
d5
)
After 7...
Nxe5?
8.Nxe5 dxe5 9.Bxf7+ Kxf7
10 Qxd8
FIG. 5
Black loses his queen.