Amazing Foal Born With A Patch By His Mane That Looks Like Another Horse

I bought his mother at a sale and didn't know she was in foal [pregnant] so that was a bit of a surprise. It looks like an optical illusion, but this foal was born with his own perfect white shadow! Chestnut horses have irregular patches but they don't normally make something as recognizable. I wasn't very happy at first but he is so friendly and the kids love him. He's even got a little white heart shape on his bottom as well.