In order to understand this game, you need to know a few words from the language of Backgammon. The object of the game is to move all of your pieces off the end of the board. In backgammon, if you have a piece on the bar, but can't bring it in, you cannot move.
Backgammon is different from chess.
In Backgammon, you can have more than one piece at the same board location, and a stack cannot be captured. Most of all, backgammon uses dice. The standard rules of Chess apply in the few cases not covered by the following rules. There is no check. There is nothing special about the King.