Play Nackgammon Online
Classic backgammon with a harder opening: each player starts with four checkers back, instead of two. It is included in Backgammon 18 Games, the free Android and iOS app by Geimz ltd.
Rules
Setup: The setup is the same as in backgammon except that one checker from each player six-point and mid-point are moved to the opponent two-point. The players start with four back checkers rather than the usual two.
All other rules are the same as backgammon.
Also called Backgammon with a deeper back game. Choose it from the game list, then play offline, online, or with a friend.