System and method for a three-dimensional puzzle set, with puzzle pieces optionally comprising electrical circuits and electrical components such that when two or more puzzle pieces are assembled an electrical circuit is formed along the puzzle assembly, activating the electrical components. The puzzle pieces have spherical projections and spherical recesses, where the spherical projections mate with the spherical recesses and can be inserted in various angles, enabling the forming of three-dimensional structures.

The present invention extends puzzles from two dimensions to three dimensions, and optionally integrates these three-dimensional puzzles with electrical circuits. The puzzle language of connecting pieces to each other is used as the electrical language to build electrical circuits. Specifically, electrical principles such as electric current flow and input-output are well visualized by puzzle assembly projections and recesses.

These, additional, and/or other aspects and/or advantages of the present invention are set forth in the detailed description which follows; possibly inferable from the detailed description; and/or learnable by practice of the present invention.

A building element of a specified shape having at least one surface including at least two diagonally opposed projected portions and at least two diagonally opposed recessed portions in relation to the diagonally opposed projected portions. The projected portions are adapted to engage and interlock by snap fit and/or by interlock friction with a substantially identical side of a corresponding building element.

A block set for building models. The block set includes a first cuboid block. The first cuboid block includes stacking surfaces including a first stacking surface and a second stacking surface substantially parallel to the first stacking surface. The first cuboid block includes side surfaces extending between the stacking surfaces for interlocking said first cuboid block to other cuboid blocks by sliding said first cuboid block adjacent to other cuboid blocks in a direction from the first stacking surface to the second stacking surface. A first side surface opposes a second side surface. The first side surface includes a dovetail-shaped proturbance for receipt by a second side surface of a second cuboid block. The second side surface of the first cuboid block defines a formation for receiving a dovetail-shaped proturbance of a first side surface of a third cuboid block.

The inventor of the present invention aimed to solve the problem of limited modes of interconnection between blocks. To solve this problem, the inventor created a building block that is reconfigurable to connect to a neighboring block by any two adjacent faces. To achieve this, the inventor created a system that allows a user to construct and reconfigure each individual face to provide either male or female connecting features, as well as configurable slidable connection between male and female parts. Said slidable connection allows two mating faces to be shifted or offset from one another in continuously varying amounts of offset.

A block may comprise a base comprising a first block side comprising a first side plane and a connective protrusion coupled to the base and extending distally outwardly and substantially perpendicularly from the first side plane. The connective protrusion may comprise a center pillar coupled to the base extending distally outward from the first side plane, a base portion coupled to the center pillar and the base and extending axially and substantially perpendicularly from the center pillar in a first direction, and an overhang portion coupled to the center pillar extending axially and substantially perpendicularly from the center pillar in a second direction opposite the first direction such that there is an overhang space between the first side plane and the overhang portion. The block may further comprise additional connective protrusions, and the connective protrusions of multiple blocks may enable the coupling of such blocks.

A block may comprise a base comprising a first block side comprising a first side plane and a connective protrusion coupled to the base and extending distally outwardly and substantially perpendicularly from the first side plane. The connective protrusion may comprise a center pillar coupled to the base extending distally outward from the first side plane, a base portion coupled to the center pillar and the base and extending axially and substantially perpendicularly from the center pillar in a first direction, and an overhang portion coupled to the center pillar extending axially and substantially perpendicularly from the center pillar in a second direction opposite the first direction such that there is an overhang space between the first side plane and the overhang portion. The block may further comprise additional connective protrusions, and the connective protrusions of multiple blocks may enable the coupling of such blocks.

The inventor of the present invention aimed to solve the problem of limited modes of interconnection between blocks. To solve this problem, the inventor created a building block that is reconfigurable to connect to a neighboring block by any two adjacent faces. To achieve this, the inventor created a system that allows a user to construct and reconfigure each individual face to provide either male or female connecting features, as well as configurable slidable connection between male and female parts. Said slidable connection allows two mating faces to be shifted or offset from one another in continuously varying amounts of offset.

The invention has as its scope a token for board games comprising a rigid body (11) of substantially planar shape and having a substantially hexagonal perimeter, where on the outer sides of the perimeter of the rigid body (11) there are, in an alternating manner, an interlocking seat (12) and a attachment element (14), where the attachment element (14) is complementary to the interlocking seat (12), so that each of the interlocking seats (12) is configured to accommodate a respective attachment element (14) belonging to a different hexagonal token. The invention further comprises a prefabricated block (100) comprising a plurality of game tokens.

An interlocking toy building block has a block body, projector assembly and film. The block is formed within interconnecting building elements thereon for connection with other toy blocks, and a projector opening is defined in a side of the block body. The projector assembly includes a lens arranged in the projector opening, a light source arranged in the block body to direct light outside the block body through the lens and projector opening, and a power assembly supplying electrical power to the light source. The film having an image thereon, the film arranged in the block body between the light source and the lens, such that the image on the film is projected externally from the projector opening by the light from the light source passing through the film and the lens. The film can be in a removable cartridge and the lens can be included in a focusable assembly.

A dovetailed building block includes a block body having a plurality of side surfaces. The side surfaces are constructed in an order of having a side surface with a dovetailed recess next to another surface with a dovetailed projection. The dovetailed projection of one said block body can engage the corresponding dovetailed recess of another said block body in a 90-degree cross manner. Thereupon, while in stacking a plurality of the block bodies, variety of secured and stable three-dimensional curved configuration can be built through angular engagement of one dovetailed projection of one block body and another dovetailed recess of another block body.