Backgammon Variants
The Pin Game
The Pin Game is similar to the Greek game Plakoto in which checkers are trapped rather than hit.
Setup:
Each player starts with thirteen checkers on the opponent's onepoint, and one checker of each of the opponent's eightpoint and tenpoint. The checkers move in opposite directions as shown in the diagram below.
Object:
The object of the game is to bring all of your checkers around to your own home board and then bear them off. The first player to bear off all their checkers wins the game.
To start:
Each player rolls one die and the higher number goes first. That player then rolls both dice again to begin his first turn.
Movement:
The roll of the dice indicates how many points, or pips, the player is to move his checkers. The following rules apply:
 A checker may be moved only to an open point, one that is not occupied by two or more opposing checkers.
 The numbers on the two dice constitute separate moves. For example, if you roll 5 and 3, you may move one checker five spaces to an open point and another checker three spaces to an open point, or you may move the one checker a total of eight spaces to an open point, but only if the intermediate point (either three or five spaces from the starting point) is also open.
 Doubles are played twice. For example, a roll of 66 means you have four sixes to use.
 You must use both numbers of a roll if possible, or all four numbers in the case of doubles. If you can play one number but not both, you must play the higher one.
Pinning the opponent:
There is no hitting in this game. Instead, if you land on a point occupied by a single opposing checker, the opponent's checker is trapped until you remove your checker. Two of your checkers on a point, or one of your checkers pinning the opponent's checker creates a block which the opponent cannot land or touch down on.
Bearing Off:
Once you have moved all fifteen of your checkers into your home board, you may begin bearing off. You bear off a checker by rolling a number that corresponds to the point on which it resides, then removing the checker from the board.
If there is no checker on the point indicated by the roll, you must make a legal move using a checker on a highernumbered point. If there are no checkers on highernumbered points, you must remove a checker from the highest point that has a checker.
Scoring:
The winner scores one point for each pip that each loser's checker must travel to come home and bear off. For example, if the losing player finishes with a checker on the fourpoint and another checker on the sixpoint, the winner gets 10 points.
If the loser has not borne off any checkers, he is gammoned and his pip total is doubled. If the loser has not borne of any checkers and still has a checker in the winner's home board or on the bar, he is backgammoned and pip total is multiplied by three.
No doubling cube is used in the Pin Game.
Differences from Backgammon 
 Players start with thirteen checkers on the opponent's onepoint, one checker on the opponent's eightpoint, and one checker on the opponent's tenpoint.
 The winner of the opening roll rerolls for his first turn.
 There is no hitting; instead you can trap a single opposing checker with one of your own.
 The winner scores one point for each pip the loser's checkers must travel to come home and bear off. Gammons score double; backgammons score triple.
 There is no doubling.


