The first one is a pied. Splits are a little hard to tell except for pied. The second is a lutino or clear pied depending on the eye color. He/she also looks like he/she is split to whiteface because of the streaks on the cheek patch. The third is a pied. Once again, I can't tell what he is split to. If you know the mutations of any of the parents, it would be easier to determine what they are split to.