I posted this puzzle recently. Here are some of the lines:
1.Qd4 Qf7 [1…Rad8 2.Rxd8 Rxd8 3.Bxe4+ Bxe4 4.Qxe4+ Kg8 5.Qg6+ Kf8 6.Bb4+ +-; 1…Re7 2.Qf6; 1…Qe7 2.Re6 +-] 2.Rf6 Qg7 [2…Qe7 3.Qf2 Rf8 4.Qf5+ and mate soon] 3.Rxb6 Qxd4 4.Rxb7+ Kg8 5.Bxd4 +-
Chess Daily News from Susan Polgar
1.Qd4
But, I think 1.. Bd5 would give Black good defence.
But, What about 1…Bd5 does this move give a better defence?
Qd4 Bd5
Qf6
1.Qd4!
1… Bd5 fails due to 2.Qf6!! and black is absolutely lost, for example 2..Qe7 Qg6# or 2..Rg8 3.Qxh6#; finally 2..Re6 3.Rxe6 Bxe6 4.Bxe4+ and it’s over.