Bob McGuigan: The characters 手有 mean "has a move", I think. The first one is "move" and the second one, yuu means "have" or "possess" The second character might also mean "exists" so the pair could be "a move exists". I checked my copy of Maeda's book and it seems that this label is used when the problem isn't so much a "standard" life-and-death problem as a tesuji problem requiring one side to win a capturing race or connect out or something.