A method of delivering cards from a card housing unit during a card game including automatically detecting, using one or more processors, at least one of a card being held within an opening in the card housing unit for a period of time longer than a predetermined period of time or an attempt to manually draw a card from the opening after the card game ends, and based on the automatic detection, controlling, using one or more processors, operation of a lock member to restrict movement of the card relative to the opening in the card housing unit.

The present invention provides a system having: packages (2) of shuffled playing cards (1s) in which playing cards included are shuffled in random order and are individually packed in one package (2), and in which a unique ID code (4) is attached to each unique package (2); a game table (11); a storage box (401) that is installed beside the game table (11), stores the plurality of packages (2), includes a reader (451) that reads the ID codes (4) of all the packages (2), and includes an openable lid (452a, 452b) so that the packages can be taken out one by one; and a control device (112) for monitoring whether or not the packages (2) are present in the storage box (401) by monitoring the ID codes (4) of the packages (2) read by the readers (451), and for outputting monitoring results.

A computing system of an electronic puzzle includes a memory, an electronically controlled lock, and a plurality of sensors to generate sensor data. The computing system controls the electronically controlled lock to regulate access to an inner chamber of the electronic puzzle and monitors the sensor data generated by the plurality of sensors. The computing system generates an input password based on the monitored sensor data, compares the input password to a puzzle password stored in the memory, and unlocks the electronically controlled lock to permit access to the inner chamber in response to a determination that the input password matches the puzzle password.

To prevent a loss or replacement of card packages while operating casinos using packages of multiple cards in the casinos or other card game facilities using card game tables, a management system for managing packages of shuffled playing cards is provided. The management system including a management control device stores ID codes attached to a plurality of packages brought into a management/storage box, constructs a database, reads the ID codes of the plurality of packages brought into the management/storage box at predetermined time intervals, confirms existence of each ID code registered in the database in the management/storage box, and manages the ID codes of the packages before use and the ID codes of the drawn packages.

There is provided an article, the article being moveable between a first position and a second position and biased to the second position. The article is retained in the first position until a predetermined condition is met, and wherein when said predetermined condition is met the article moves from the first position to the second position.

A lock device includes a lock seat, a lock cylinder, an actuating plate, an extension plate, a guide plate, and hooks. The lock seat is fixed to a window panel. The lock cylinder is connected to the lock seat. The actuating plate extends from the lock cylinder. The extension plate is connected to the window panel. The guide plate extends from the extension plate over the actuating plate. The hooks are connected to the extension plate and engageable with engagement slots of a main housing. Each hook has an inclined guide surface. When the lock cylinder rotates, the actuating plate moves the guide plate and the hooks so that the hooks are disengaged from the engagement slots to unlock the window panel. The inclined guide surface is slidable to the main housing to move the extension plate when the window panel is to be locked.