Must be bishop from b4 to a3.

We that was fun

panicked for a sec when i saw the knight move. I thought the king would take the bishop. Either way was mate in 3 I guess

True, but white keeps black in check until the checkmate, keeping black from making that move.

The position was made perfectly for white mate...easy.

it would still end up the same...

It's same thing, than you have mate by Qh7 defended by the rock at h1.

easy

this was why Black should not be given a chance. White did this by checking Black twice and then checkmate on the third move.

very easy

nice

this is a pretty easy puzzle, since the first move must be a check, or the white King is toast.

Good one.

first

It's no use, it's a mate in 1 either way.