Patent US 5,199,714

A deck of 52 standard-sized playing cards, with 50 cards, each having one letter of the alphabet on its obverse side, and 2 cards each having nothing on its obverse side; the blanks standing for any letter of the alphabet. The distribution of the letters in the deck is as indicated on the attached FIG. 4. The cards are arranged and combined in a word-forming game following the general organizational principles of Klondike Solitaire.