Confused over a brilliant move

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Potato3608

I know that it is against a bot, but I do not understand how Bc4 is a brilliant move.

magipi

If you don't know why it is good, why did you play it?

Jomsup

you'll get the pieces back. and open black king to weakness.

YumYumStuff101

Hi bud

Kodzilla1

I believe its to do with just positioning also possible lead to mate with queen

jimlargon

iirc, nowadays any meaningful sacrifice will be counted towards brilliant.

GreenMoon07
What Bc4?