Choose a set of bounds. No one may exit these boundaries.
Once the game starts, everyone is “it.” Each person tries to tag other people on the knees or below.
Once a child has been tagged, she must sit down in place and cannot participate in the game for the time being. She is released when the child who tagged her has himself been tagged. Children need to keep track of the person who tagged them so that they will know when they have been freed.
What this means is that often the game will work its way down to only two people left standing. When one of these tags the other, lots of people will be released, and the game will continue!
The game ends when only one person is left standing.