A novel card game is disclosed utilizing a standard deck of playing cards and played by combining the rules of tic-tac-toe and twenty-one or poker. The player places the cards at certain locations in order to accumulate combinations of twenty-one or in order to accumulate the best poker hands. Also disclosed are novel decks of game playing cards containing playing cards. One novel deck consists of groups of cards, each containing the numeric values of one through ten. The other novel deck contains 37 or 38 novel cards, each containing a numeric value one through 36, or a zero or a double zero, along with a color indication of red, black or green.