Disclosed herein are embodiments of three-dimensional puzzles that implement image sensors to read signatures of individual shell segments to thereby determine shell segment patterns. Also disclosed are embodiments of systems that implement RGB sensors adjacent gradient color maps to provide contactless absolute position encoders.

The present disclosure relates to the technical field of computer visual detection processing, and provides a method for guiding users to restore Rubik's cubes. The method comprises step 1, acquiring arrangement information of colored blocks of the Rubik's cube; step 2, displaying restoration process of the Rubik's cube.

A multi-axis rotational puzzle cube has a core unit and multiple first operating assemblies and multiple second operating assemblies rotatably assembled to the core unit. Each one of the multiple first operating assemblies has a first operating unit connected to the core unit, a snap rivet connected to the first operating unit inside the core unit, a blocking tube mounted around and stuck with the snap rivet, and a compression spring mounted around the snap rivet and abutting against the core unit and the blocking tube simultaneously. Each one of the multiple second operating assemblies has a second operating unit connected to the core unit, a snap rivet connected to the second operating unit inside the core unit, a blocking tube mounted around and stuck with the snap rivet, and a compression spring mounted around the snap rivet and abutting against the core unit and the blocking tube simultaneously.

A game piece, comprising members that are associated with one another with pivot axes, where a member provides a pivot support that allows independent rotation and or translation motions of a next member in different directions.

A smart puzzle cube having prompting and recording functions includes at least four cubes (101), a central sphere body (4), and at least one conductive connector (8). The cubes (101) and the central sphere body (4) are securely connected by the conductive connector (8) via a mechanical connection, the cubes (101) are structurally connected to each other and rotatable, and puzzle cube layers formed by the cubes (101) rotate in both directions without limit. The conductive connector (8) includes a rotation detection module (10) that detects rotation directions and angles of the puzzle cube layers.

A three-dimensional platform comprising a tessellated surface of pieces, each piece comprising a top and sides. The pieces comprise a fixed square piece having at least two opposing sides orientated acutely relative to the top to define a fixed square retention surface. The remaining surfaces orientate substantially perpendicular relative to the top. There is a mobile square piece having at least two opposing sides orientated obtusely relative to the top to define a mobile square retention surface. The remaining surfaces are oriented substantially perpendicular relative to the top. A mobile triangular piece having all sides orientated obtusely relative to the top. The fixed square retention surface indexes only with either the mobile square retention surface or the triangular piece surface to effect retention of the pieces to define the three-dimensional platform.

A three-dimensional platform comprising a tessellated surface of pieces, each piece comprising a top and sides. The pieces comprise a fixed square piece having at least two opposing sides orientated acutely relative to the top to define a fixed square retention surface. The remaining surfaces orientate substantially perpendicular relative to the top. There is a mobile square piece having at least two opposing sides orientated obtusely relative to the top to define a mobile square retention surface. The remaining surfaces are oriented substantially perpendicular relative to the top. A mobile triangular piece having all sides orientated obtusely relative to the top. The fixed square retention surface indexes only with either the mobile square retention surface or the triangular piece surface to effect retention of the pieces to define the three-dimensional platform.

The present application relates to the field of smart Rubik's cube technologies, and discloses an apparatus and a method for detecting a rotational state of a smart Rubik's cube. The apparatus includes a printed circuit board (PCB) assembly, a plurality of Hall sensors, and a central processing unit. The PCB assembly is disposed at a spherical core inside a Rubik's cube. The plurality of Hall sensors and the central processing unit are disposed at the PCB assembly. Positions of the plurality of Hall sensors correspond to Rubik's cube sides respectively. The central processing unit is connected to the plurality of Hall sensors. The present application implements non-contact detection of Rubik's cube state data, resolves a move-missing problem caused by physical wear and potential poor physical contact, and the detection precision is improved.

A smart magic cube with a ball shaft includes the ball shaft, six center blocks, eight corner blocks fitted with the center blocks, and twelve edge blocks fitted with the corner blocks and the center blocks. The center blocks are respectively arranged on a rotating shaft sensing assembly of the ball shaft. The smart magic cube with the ball shaft has a, clever design. Six printed circuit boards consist an electronic control system of the ball shaft. With each rotating shaft sensing assembly installed on each of the printed circuit boards, position sensing of the smart magic cube is accurate and a rate of lost steps of the smart magic cube is reduced. Further, the smart magic cube is not assembled by wire welding, has high integration, has a low cost, and is easy to assemble.

A logic cube with changeable tiles is presented. The tiles which can be fit on the logic cube, have indicia in well-defined positions and orientations such that the resulting solid is an exact but larger replica of the initial logic cube. The tiles are such that they can be easily fit or removed, and do not fall off with the movement of the logic cube. They also do not obstruct the functionality of the logic cube. Other geometric shapes such as tetrahedron and dodecahedron and sizes other than 333 may be used.