It is a two player game where each player has fifteen pieces (checkers) which move between twenty-four triangles (points) according to the roll of two dice.The objective of the game is to be first to bear off, i.e. Backgammon is a member of the tables family, one of the oldest classes of board games.The same checker may be moved twice, as long as the two moves can be made separately and legally: six and then three, or three and then six.If a player rolls two of the same number, called doubles, that player must play each die twice.After rolling the dice, players must, if possible, move their checkers according to the number shown on each die.For example, if the player rolls a 6 and a 3 (denoted as "6-3"), the player must move one checker six points forward, and another or the same checker three points forward.
A roll of 1 allows the checker to enter on the 24-point (opponent's 1), a roll of 2 on the 23-point (opponent's 2), and so forth, up to a roll of 6 allowing entry on the 19-point (opponent's 6).It may also land on a point occupied by exactly one opposing checker, or "blot".In this case, the blot has been "hit", and is placed in the middle of the board on the bar that divides the two sides of the playing surface.Checkers may not enter on a point occupied by two or more opposing checkers.
Checkers can enter on unoccupied points, or on points occupied by a single opposing checker; in the latter case, the single checker is hit and placed on the bar. A player may not move any other checkers until all checkers on the bar belonging to that player have re-entered the board.For example, a roll of 5-5 allows the player to make four moves of five spaces each.