US Patent 7600758 Card game

A card game has several groups of cards with the cards of each group identified by a common color and the cards of each of the groups are successively numbered. A player is given four cards face down and four cards in his hand. In a play of the cards, a player displays one card from his hand and selects one of his face down cards to play it against. The player declares whether the displayed card is higher or lower than the selected card and wins points if his declaration is correct.