Fours is a modern interpretation of the ancient Sumerian game The Royal Game of Ur. While inspired by that game, the rules have been simplified allowing for an easy-to-learn game that still has elements of chance with a need for strategy.
Like the original game, Fours is a race to move checkers through a course. Opponents can knock each other off the course, but there are 'safe' spaces. The 'fours' theme is evident throughout the game - dice yield a result of 1, 2, 3, or 4. Safe spaces occur every 4 spaces. Each player has four checkers to run through the course. A roll of 4 allows a player an extra roll.
One of the most unique design elements of the game is the portability. The game 'board' is actually a fabric game mat with a rubberized backing. This allows it to conveniently fold and pack into a small pouch easily carried in a purse, backpack, or briefcase. Unlike modern recreations of the game, a large, bulky wooden board is not required.