Triple inversion geometric transformations are useful as puzzles, toys, teaching aids, therapy devices, and the like. The transformations include a plurality of hingedly connected polyhedrons, each of the polyhedrons having at least one of a first surface, a second surface, or a third surface. The transformations are configurable between three congruent inverted configurations.

A 3-dimensional logic game has a support structure, an actuating structure attached to the support structure and game elements attached to the actuating structure. The game elements are formed as carriages provided with first and second marking surfaces and are slidably mounted on rails attached to the actuating structure. The actuating structure is movable between a first and a second rest position. In the first rest position, a first group of three rails form first rail rings around vertices of a first tetrahedron wherein the first marking surfaces of the carriages are facing outwardly, while the second marking surfaces are facing inwardly. In the second rest position, a second group of three rails form second rail rings around vertices of a second tetrahedron while in the point reflection of the first tetrahedron reflected over the geometric centre thereof.

A method of gradually revealing an image using cube puzzles is provided. A first image is divided into a plurality of blocks. Each block can have one or more arbitrary colors. A second image is then generated from the first image where each block of the second image corresponds to one or more blocks of the first image. The blocks of the second image are unicolor blocks with colors that are selected from one of the six colors of a cube puzzle. Groups of adjacent blocks of the second image with the same number of rows and columns as the sides of the cube puzzles are assigned to participants to match to the color of the blocks on the sides of their cube puzzles. Once each participant matches the colors of an assigned region on a side of the corresponding cube puzzle, the matched region is reveled to all participants.

The puzzle storage box disclosed herein may comprise an internal locking mechanism designed to challenge ingenuity while being embedded within an assembly of unlimited form potentiality. In one variation, the internal locking mechanism is embedded in a shallow container and may be used for more personal, everyday carry. In another variation, the internal locking mechanism is embedded in a deeper container for increased volume and prominent display. The internal locking mechanism will be incorporated into endless shapes and forms, and its novel method of operation will be respectively conveyed.

The puzzle storage box disclosed herein may comprise an internal locking mechanism designed to challenge ingenuity while being embedded within an assembly of unlimited form potentiality. In one variation, the internal locking mechanism is embedded in a shallow container and may be used for more personal, everyday carry. In another variation, the internal locking mechanism is embedded in a deeper container for increased volume and prominent display. The internal locking mechanism will be incorporated into endless shapes and forms, and its novel method of operation will be respectively conveyed.

A magnetic levitation magic cube includes edge blocks, corner blocks and center blocks. Inner sides of two side faces close to the corner blocks of the edge block each are provided with three magnet mounting grooves, and a magnet is mounted in each of the magnet mounting grooves. The center block includes a center block body and a center block cover. The center block cover covers and is spliced to the opening of the center block body. The center block further includes an upper magnetic disk and a lower magnetic disk. The upper magnetic disk is provided with a through-hole for fastening a central shaft of the magic cube. The lower magnetic disk is provided with a through-hole for the central shaft of the magic cube to pass through. Two repelling annular magnets are fixedly mounted in each of the upper magnetic disk and the lower magnetic disk.

A smart magic cube and sensor used thereby, a smart center shaft, and a monitoring method. A sensor includes a stator, a first rotor, and a second rotor. The stator is fixedly provided on the smart magic cube. The first rotor is configured to be able to rotate synchronously with a first magic cube layer, such that when the first rotor rotates with respect to the stator along with the first magic cube layer, the stator or the first rotor can output a rotation signal of the first magic cube layer; and the second rotor is configured to be able to rotate synchronously with a second magic cube layer, such that when the second rotor rotates with respect to the stator along with the second magic cube layer, the stator or the second rotor can output a rotation signal of the second magic cube layer. By using the structure of “one stator and two rotors”, the sensor implements detecting the rotation signals of “the two magic cube layers” of the smart magic cube, thereby facilitating obtaining a state signal of the smart magic cube in a next step.

A three-dimensional puzzle has a monitoring puzzle piece and multiple monitored puzzle pieces. For puzzle pattern determination, the monitoring puzzle piece is equipped with sensors, a processor, a wireless transceiver, and optionally a gyroscope sensor. The monitored puzzle pieces are rotatably connected to each other and to the monitoring puzzle piece to form the puzzle. The sensors, together with the processor or alternatively with an external client, track the monitored puzzle piece rotating relative to the monitoring puzzle piece. The external client may provide feedback to a user of the puzzle. The system enables the competitions between the user and users of other puzzles without requiring the physical proximity of the competitors.

Novel ring puzzles containing a plurality of rings supported on at least one elongated loop are provided, where at least one ring of the plurality of rings is connected to more than one adjacent ring in its front, at least one of the plurality of the rings has a diameter different than that of the other of the plurality of rings, or the elongated loop includes at least two elongated loops arranged in parallel.

The invention refers to a toy for pets, in particular for dogs, comprising a housing (3) with a floor (5), a lid (7) and side walls (6) with openings (31, 32), through which, in the housing (3), at least one longitudinal sliding element (1) and at least one transversal sliding element (2) are placed in a movable manner, wherein, in a first closed position, the sliding element (1, 2) is fully located inside the housing (3), and in a second open position, one end (11, 21) of the sliding element (1, 2) protrudes through the opening (31, 320), outside the housing (3), wherein the end (11, 21) of the sliding element (2, 3) is equipped with a indent (12, 22) for placing the small treats, wherein the sliding elements (1, 2) are normally aligned with each other and are arranged through crossing in an interaction area, wherein on/in the sliding elements (1, 2) surface structures are provided, by height and/or width, wherein the surface structures interact mechanically with each other, and the mechanical interaction can be modified by moving the sliding elements (1, 2), through which the sliding elements (1, 2) can be brought into an open position, with the indents (12,22) located outside the housing (3).