A packing box for packaging of playing cards has, in an assembled state, a shape of a rectangular parallelepiped with six faces including front and rear faces, right and left side faces, and top and bottom faces. The packing box includes cut lines in two locations at a predetermined interval in parallel with a longitudinal direction of the rectangular parallelepiped, and a central band in a portion defined by the cut lines provided in the two locations. The right and left side faces of the packing box can be removed along the cut lines such that side edges of the playing cards within the packing box are exposed.

A fraud detection system which detects fraud in a game of performing collection and redemption of chips in accordance with a win or lose result includes a camera which captures an image of chips contained in a chip tray of a dealer, an image analyzing apparatus which analyses the image captured by the camera to detect an amount of the chips contained in the chip tray, a card distribution device which determines a win or lose result of a game, and a control device which compares the win or lose result of the game and the amount of the chips contained in the chip tray before and after collection and redemption of the chips to detect fraud.

A fraud detection system which detects fraud in a game of performing collection and redemption of chips in accordance with a win or lose result includes a camera which captures an image of chips contained in a chip tray of a dealer, an image analyzing apparatus which analyses the image captured by the camera to detect an amount of the chips contained in the chip tray, a card distribution device which determines a win or lose result of a game, and a control device which compares the win or lose result of the game and the amount of the chips contained in the chip tray before and after collection and redemption of the chips to detect fraud.

There is provided a shuffled playing card, wherein a suit and a rank are printed on one surface of a card base sheet, and a back pattern is printed on another surface, different sheet IDs for one card base sheet or each of a plurality of card base sheets are printed on the card base sheet, one deck or a plurality of decks are formed by individual cards cut by a cutting machine from the card base sheet, the one deck or the plurality of decks are shuffled by a shuffle machine to form a set of shuffled playing cards, different shuffled playing card IDs for each set are assigned to the shuffled playing card as ID codes, and the sheet ID of the playing card constituting the shuffled playing card and the shuffled playing card ID are associated with each other in a database.

A detection system including a control device detecting fraud performed in a game table by using a result of an image analysis performed by an image analyzing device. A substitute currency for gaming used for this detection system has a multi-layer structure in which a plurality of plastic layers having different colors are stacked, a coloring layer is included at least in the middle, and white layers or thin-color layers (may be layers having a color thinner than that of the coloring layer; not illustrated in the drawing) are stacked on both sides of the coloring layer disposed in the middle.

A game management system manages a casino game performed in a plurality of tables in casino facilities. The game management system includes: a camera obtaining an image by capturing bet gaming tokens; a control device specifying a betting amount on the basis of the type and the number of gaming tokens in the image by specifying a betting target on the basis of a position of the gaming token in the image; a card distribution device determining a game result of the casino game; an arithmetic device calculating a profit of a casino manager for each table and each game of the plurality of tables, on the basis of the betting target, the betting amount, and the game result; and a recording apparatus recording the profit.

Embodiments provide for card games such as blackjack that allow at least one card to be dealt from a special deck (e.g., a restricted deck) into a hand, while the remainder of the cards for that hand (and, in some embodiments, other hands involved in the game event) are dealt from a main/conventional deck. In accordance with some embodiments, the at least one card dealt from the special deck is dealt into a hand of the player while in other embodiments it is dealt into the hand of a dealer and/or an opponent player. A special deck may be a deck that includes cards configured to provide an advantage to the player (e.g., in a blackjack game, restricted deck may only include high value cards if being used for a player hand or only low value cards if being used for a dealer hand).

A game management system manages a casino game performed in a plurality of tables in casino facilities. The game management system includes: a camera obtaining an image by capturing bet gaming tokens; a control device specifying a betting amount on the basis of the type and the number of gaming tokens in the image by specifying a betting target on the basis of a position of the gaming token in the image; a card distribution device determining a game result of the casino game; an arithmetic device calculating a profit of a casino manager for each table and each game of the plurality of tables, on the basis of the betting target, the betting amount, and the game result; and a recording apparatus recording the profit.

A security-enhanced document including a substrate, variable indica applied to an area of a first side of the substrate, a scratch-off-coating applied over the variable indicia to maintain the variable indicia unreadable until the scratch-off-coating is removed by being scratched off, and digital imaging applied to an area of a reverse side of the substrate from the variable indicia, wherein the digital imaging applied to the area of the reverse side of the substrate includes the same materials as the variable indicia, is uniformly spread over the area of the reverse side of the substrate, and such that the digital imaging overlaps at least 50% of the variable indica applied to the area of the first side of the substrate, such that the variable indicia exhibits an insufficient signal-to-noise ratio relative to the signal-to-noise ratio of the digital imaging on the reverse side of the substrate so that the variable indicia cannot be discerned so long as the scratch-off-coating remains intact.

A table game management system according to the present invention includes: a camera that images a game token placed on a game table; and a management control device that grasps a type (10 points, 20 points, 100 points, 1,000 points, or the like) of the game token placed on the game table based on a color of a side face of the game token imaged by the camera.