Backgammon is played on a board consisting of 24 points (marked with a triangle), 2 end fields (at the bottom of the board, one for each player) and a bar (in the center of the board). The goal of Backgammon is to move all your stones to your end field.
Taking turns, the players roll 2 dice. For each die, one of their stones may be moved forward the number of pips rolled. If the number of pips on both dice is equal, four times the number of pips (of 1 die) can be moved forward. It is allowed to move the same stone multiple times.
The end field is marked by a small triangle in the player's own color. The playing direction is reversed for both players, starting from the point above the opponent's end field, upwards, to the opposite side and downwards towards their own end field.
A stone may only be moved to points that have no stones, only own stones, or 1 opponent's stone on them. In the latter case, the opponent's stone is captured and placed on the bar.
Stones that are on the bar must be brought back into play before other stones may be moved. This should be done through the 6 points above the opponent's end field. If there are still moves left in the same turn, they may be continued in the regular way. This may also be done with the returned stone(s).
Stones may only be placed on the end field if all of the own stones are in the 6 points above it. If it is no longer possible to move a stone to the end field with a number of pips, a stone must be moved. If this is no longer possible, a stone furthest from the end field may be placed on the end field.
The game ends when one of the players has placed all of his stones on his end field. The player who does this first wins the game.