Backgammon is a classic abstract strategy game dating back thousands of years. Each player has a set of 15 checkers (or stones) that must be moved from their starting positions, around, and then off the board. Dice are thrown each turn, and each player must decide which of their checkers to move based on the outcome of the roll. Players can capture each other's checkers, forcing the captured checkers to restart their journey around the board. The winner is the first player to get all 15 checkers off the board.