This episode is for Wednesday's daf. || Cases of unclear, obscure, indeterminable statuses: ashes from the hearth, in various permutations. Plus, other cares that are permitted because one angle is permitted even though another angle of the same activity is prohibited. Also: the Koi/Koy, an animal that may be a chaya (wild animal) and may be a behamah (domesticated animal) but really neither, as it has aspects of each, and yet also of neither. With the practical question of whether the blood would need to be covered on yom tov. In all cases, with regard to the koi, we rule stringently, because of the questions pertaining to this animal.