Can you find the 8-move checkmate?

White to move and mate in 8:

nice problem. irrealistic but very educational. thank you.

p.s. it's a mate in 7;)

 I'm glad you liked it, but where's your solution? :)

do you change the setup ? i remember a pawn on b file instead of d file. however...

the educational value for me is in the mating visualization. I'm poor using knight. this problem is all based on a mating net build by knight. thank you.

woooooooooo

But what happens after 1...f3 or after 1...Kb6?

You mean : "Call you find ALL 8 move mate?" 

on 1... Kb6 the bishop control the a5 escape square with 2. Bd8+

i wonder that the plan is the same. build a mating net with knights and use some waiting move to drive the king in the corner or the edge. use the white king on c6 to enclose the black king. i give a mate pattern below.

it truly is mate in 1 if the bishop moves to D8