Logical toy

A puzzle toy comprising two parts mounted on opposite sides of a plane of contact for rotation relative to one another about a common axis perpendicular to said plane,

• each part including a series of containers, each container being parallel to said common axis and having a closed end and an open end, said parts being rotationally alignable so that the open end of a container of one part can communicate with the open end of a container of the other part,
• a number of play elements movable within the containers, containers of at least one part being sized to accommodate different numbers of play elements than other containers of said part,
• the elements in a container of either part being movable through its said open end into an unfilled container of the other part by rotating a part to align such containers with one another and by tipping said common axis about a horizontal position,
• the containers of the respective parts being arranged so that if any container of one part is aligned with any container of the other part, then all of the containers of said one part are aligned with all the containers of the other part and play elements in multiple containers can simultaneously be transferred between the containers of either part to the other, and so that if any container of one part is not aligned with any container of the other part, then none of the containers is aligned and no elements can be transferred from either part to the other part.