A visual clown and visual pied will have all offspring being double het for clown pied. It’s the only way to guarantee a het without testing.
If one of the parents was a het, the offspring would be 50% het pied. You can’t tell any of them apart without testing and only 1/2 of them are carrying the gene.
66% means both parents were het, so 2 out of 3 offspring are carrying the het. Again, can’t say which is the het. So 66% odds for each unless you test them.