My men 

Your men: 

How To Play Cowboy's Checkers

Each player starts with nine men. The game starts with players taking turns placing pieces at intersections on the board. When all pieces are placed, the player starts moving pieces into adjacent empty intersections. If at any time a player gets three of their men in a row along a line, they get to remove one of the opponents pieces. The game is won by reducing your opponent to two pieces or less.

If you can't move, hit "Pass". To start a new game, hit reload.

In this version of the game, a player is allowed to start moving pieces on the board before all pieces are placed.

It is considered unsporting to make repeated rows by moving a piece out and then back where it came from. 

more info at the Wikipedia Page