Playing cards and system
A technology of playing cards and playing cards, applied in the field of playing cards and the system of the playing cards, to prevent illegal behaviors
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[0018] figure 1 It is an explanatory diagram showing the outline of the holding state of playing cards in Embodiment 1 of the present invention, figure 2 (a) is a plan view of a card having a mark representing a numerical value only on the upper left and lower right of the card in Embodiment 1, figure 2 (b) is a plan view of a card having the same mark only on the upper right and lower left of the card.
[0019] The playing card 1 according to Embodiment 1 is a deck of 52 cards consisting of two types of cards, a card 1a and a card 1b, and the card 1a has marks representing numerical values representing card ranks only on the upper left and lower right of the card 1. 2. The card 1b has marks 2 representing numerical values representing the card ranks only on the upper right and lower left of the card 1 . For example, among hearts and clubs among the suits, cards such as A, 2, 3, and servants, queens, and kings as flower cards (J, Q, K) become cards with marks only on t...
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