The Royal Game of Ur, also known as the Game of Twenty Squares, is an ancient board game that was played in Mesopotamia, now modern-day Iraq, around 4,500 years ago. It is one of the oldest known board games in the world, and examples of the game have been found throughout the region.

The game is played on a board with a pattern of twenty squares, arranged in two rows of ten. The game pieces consist of seven white and seven black circular pieces, each with five white or black dots on them, and two pyramid-shaped dice, which are used to determine the moves of the pieces.

The objective of the game is to move all of your pieces from the start to the finish, which is located at the opposite end of the board. The game involves a mixture of luck and strategy, as players must use the dice rolls to determine their moves, while also making strategic decisions about which pieces to move and where to position them on the board.

Despite its ancient origins, the Royal Game of Ur is still played today, both as a historical curiosity and as a modern board game with various adaptations and rule variations.