What is an orphaned block? Is that one where there are several fringes and that block ends up on a fringe that gets left because another was solved first?
Two miners might find a block at the same time, and only one will eventually be on the longest chain. The other will be forgotten. The name "orphan" is a bit of a misnomer, because an orphan block has a parent but it has no child (or perhaps no grandchild).