Games requiring thinking and strategy are provided with concealable cards or game pieces, physical or virtual, which can be played on a game board which may be a square or rectangular grid or other shape. Together the cards or game pieces are a collection of sets and there may be more spaces on the game board than there are cards or game pieces in the collection. The cards may be a subset of a regular deck of cards, such as five sets of four cards of the same value, each of different suits, wherein these 20 cards are to be played on a 5×5 game board so that there are 5 extra spaces that will be empty after all cards are played. Cards may be played one at a time or grouped and some may be concealed before being played, with the order of concealed and revealed varying. A player aims to place the cards or game pieces to form combinations such as four of a kind in value in either rows or columns to score points. Other combinations may be played for such as three of a kind, flushes, full houses etc. and these may be obtained in different directions on the board. Points are tallied at the end when all cards or game pieces have been played, and prizes may be awarded for points scored after one or more games. Games may be played by one or more players, and the rules may incentivize two or more players to collaborate or compete. Wild card and jokers may be included at various stage of play.

A system and method for providing a topographical chess system that can enhance the variety, strategic thinking, and enjoyment of strategic board games. A set of regular, non-topographical, movable chess pieces, a chess board, and at least one topographical chess piece are provided. The at least one topographical chess piece provides a symbolic representation of a topographical feature and acts to provide a barrier or semi-barrier to the movement of at, least one regular non-topographical movable piece, thereby increasing both realism and the number of possible strategic scenarios. The topographical chess piece can represent a tree, mountain, body of water, hill, city or other suitable natural or man-made feature.

An authentication method and system includes a computing device, such as a smart phone, which includes a display for presenting a graphical and interactive game board that is used for entering a user's passcode. During the authentication process, the user selects a game board (e.g. chess, checkers, poker, backgammon, etc.) and associated game pieces for presentation on the display. The user then moves one or more game pieces to locations on the game board. Together, the selected game board, selected game pieces, and the movements and/or locations which the game pieces are moved on the game board form an entered passcode. This generated passcode is then compared with a stored passcode to authenticate the user before granting access to the computing device.

Apparatus and methods are disclosed for sealing openings on containers and other structures, permitting selective removal of portions of the seal structure, and for similar selective removal of portions of adhesive elements such as bandages.

A game box for storing game properties and for single-player or two-player game, comprises a first box body, comprising a first base and a first building block base, the first base is provided with a first holding space, the first building block base covers the top of the first base, both ends of rear side are pin connected to both ends of rear side of the first base; an inserting holder, arranged at one end of the first box body, and there is a slot in the top surface of the inserting holder; at least one card, which can be inserted into the slot, and a pattern is printed on the surface of the card; and a first building block set, which can be laid in the locating recess holes of the first building block base.

An authentication method and system includes a computing device, such as a smart phone, which includes a display for presenting a graphical and interactive game board that is used for entering a user's passcode. During the authentication process, the user selects a game board (e.g. chess, checkers, poker, backgammon, etc.) and associated game pieces for presentation on the display. The user then moves one or more game pieces to locations on the game board. Together, the selected game board, selected game pieces, and the movements and/or locations which the game pieces are moved on the game board form an entered passcode. This generated passcode is then compared with a stored passcode to authenticate the user before granting access to the computing device.

Apparatus and methods are disclosed for sealing openings on containers and other structures, permitting selective removal of portions of the seal structure, and for similar selective removal of portions of adhesive elements such as bandages.

Removal of game pieces or tiles from the recesses of a game board surface having a raised grid to prevent sliding of the game pieces on the board is facilitated by providing, in one embodiment, a flexible game board which can be bent into a generally U-shaped structure to form a funnel to deposit the game pieces into a receptacle by funneling action. An alternative embodiment provides for pivotably mounted full boards or portions of boards which are rotated on their pivots to deposit the game pieces in a receptacle forming the frame for the structure. Another embodiment provides a grid with a slot under it for receiving a smooth-surfaced marked game board surface under the grid. The game board can be pulled out from under the grid to let game pieces fall down into a receptacle.