The best opening move for 6-1 in backgammon is 13/7 8/7. Makes the bar point and starts a wall. Watch it on the board, then read the idea behind it.
The idea behind the move
With 6-1 play 13/7 8/7: one checker from the 13-point and one from the 8-point land on the bar point (the 7-point). It stands right in front of your home board and blocks the 6s of your opponent’s back checkers.
What comes next
The 6- and 7-points now sit side by side, which starts a wall. The longer the wall, the harder it is for your opponent’s back checkers to get out.
How to read the move
A move like 24/18 means one checker goes from your 24-point to your 18-point. Points are counted from your side: 24 is the farthest, 1 is the deepest in your home board. “(2)” after a move means you play it with two checkers.