A three-dimensional puzzle comprising a plurality of cuboid puzzle blocks together forming a predetermined three-dimensional puzzle shape, wherein each puzzle block comprises either a male or a female connecting element on each of at least three sides of the puzzle block; wherein the connecting elements for the respective puzzle block are configured such that each puzzle block is unique.

A polyhedron (100) configured to be removably coupled by shape with another polyhedron (200) to form a Yoshimoto cube (1), such polyhedron (100) comprising: eight half-cubes (101, 102) equal to each other, each of which being delimited by three outer faces (1011, 1012, 1013), having a substantially square configuration, arranged orthogonally to each other whereby each outer face (1011, 1012, 1013) is delimited by two edges (10111, 10112) in common with the other outer faces (1012, 1013) and two free edges (10113, 10114), and by 6 inner faces (1014, 1015, 1016, 1017, 1018, 1019), having a substantially triangular configuration, wherein each inner face (1014, 1015, 1016, 1017, 1018, 1019) extends between a vertex (V), in common with the other inner faces of the half-cube (101), substantially coinciding with the geometric centre of a cube delimited by said three outer faces (1011, 1012, 1013), and a respective base, corresponding to a free edge (10113) between two free edges of one of said outer faces (1011, 1012, 1013); and eight hinge members (300), each configured to connect a free edge (10113, 10113′) of each half-cube (101, 101′) with a free edge (10113′, 10113) of another half-cube (101′, 101) adjacent thereto, wherein each hinge member (300) comprises at least one axis of rotation (301) around which the two half-cubes (101,101′) connected by such hinge member (300) may mutually move; characterized in that each hinge member (300) of such polyhedron (100): extends along each of the two free edges (10113, 10113′) of the two respective adjacent half-cubes (101, 101′) connected by the hinge member (300), starting from a same end of each free edge (10113, 10113′) of the two free edges and for an overall length lower than the length of each free edge (10113, 10113′), optionally substantially other than or equal to half the length of each free edge (10113, 10113′), defines an axis of rotation (301) parallel to each free edge (10113, 10113′), and allows a mutual angular movement between the two respective adjacent half-cubes (101, 101′) connected by it, comprised between a first configuration, wherein the outer faces delimited by the respective free edges (10113, 10113′), at which the connection with the hinge member (300) is made, match, and the corresponding portions of the respective free edges (10113, 10113′) which are not connected by the hinge member (<

A polyhedron (100) configured to be removably coupled by shape with another polyhedron (200) to form a Yoshimoto cube (1), such polyhedron (100) comprising: eight half-cubes (101, 102) equal to each other, each of which being delimited by three outer faces (1011, 1012, 1013), having a substantially square configuration, arranged orthogonally to each other whereby each outer face (1011, 1012, 1013) is delimited by two edges (10111, 10112) in common with the other outer faces (1012, 1013) and two free edges (10113, 10114), and by 6 inner faces (1014, 1015, 1016, 1017, 1018, 1019), having a substantially triangular configuration, wherein each inner face (1014, 1015, 1016, 1017, 1018, 1019) extends between a vertex (V), in common with the other inner faces of the half-cube (101), substantially coinciding with the geometric centre of a cube delimited by said three outer faces (1011, 1012, 1013), and a respective base, corresponding to a free edge (10113) between two free edges of one of said outer faces (1011, 1012, 1013); and eight hinge members (300), each configured to connect a free edge (10113, 10113′) of each half-cube (101, 101′) with a free edge (10113′, 10113) of another half-cube (101′, 101) adjacent thereto, wherein each hinge member (300) comprises at least one axis of rotation (301) around which the two half-cubes (101,101′) connected by such hinge member (300) may mutually move; characterized in that each hinge member (300) of such polyhedron (100): extends along each of the two free edges (10113, 10113′) of the two respective adjacent half-cubes (101, 101′) connected by the hinge member (300), starting from a same end of each free edge (10113, 10113′) of the two free edges and for an overall length lower than the length of each free edge (10113, 10113′), optionally substantially other than or equal to half the length of each free edge (10113, 10113′), defines an axis of rotation (301) parallel to each free edge (10113, 10113′), and allows a mutual angular movement between the two respective adjacent half-cubes (101, 101′) connected by it, comprised between a first configuration, wherein the outer faces delimited by the respective free edges (10113, 10113′), at which the connection with the hinge member (300) is made, match, and the corresponding portions of the respective free edges (10113, 10113′) which are not connected by the hinge member (<

A puzzle kit and a puzzle constructed from said puzzle kit. The puzzle kit comprises a three dimensional substrate having an outer surface, and a plurality of puzzle pieces that cannot interlock. Each puzzle piece has a first surface and an opposite second surface and a thickness defined between the first and second surfaces. Each puzzle piece comprises first attachment means and the outer surface of the substrate defines a plurality of complementary second attachment means, such that the first attachment means and the second attachment means magnetically attach each puzzle piece to the outer surface. The first attachment means comprises a projection extending from the second surface of the puzzle piece. The second attachment means comprises a hole to partly receive the projection.

A puzzle kit and a puzzle constructed from said puzzle kit. The puzzle kit comprises a three dimensional substrate having an outer surface, and a plurality of puzzle pieces that cannot interlock. Each puzzle piece has a first surface and an opposite second surface and a thickness defined between the first and second surfaces. Each puzzle piece comprises first attachment means and the outer surface of the substrate defines a plurality of complementary second attachment means, such that the first attachment means and the second attachment means magnetically attach each puzzle piece to the outer surface. The first attachment means comprises a projection extending from the second surface of the puzzle piece. The second attachment means comprises a hole to partly receive the projection.

A toy brick system is provided which is configured for forming globe shaped structures. The system includes individual brick sections which engage in layers. The layers are configured for stacking upon adjacent formed layers to form a globe or sphere. The exterior surfaces of the brick sections may have portions of a graphic depiction thereon to configure the globe to a jigsaw puzzle.