Chose a max number of numbers, confirm the value and hit start to slowly eliminate all the numbers till only THE WINNER or the loser remains.
Reload the page to reload the app - I'll add a better way of doing this at some point
The video below shows one use for this app. It was used at a event raising money for charity work in Nepal. The event handed out numerically marked programmes. Everyone was asked to stand up and sit down when there number appeared on the screen. The last person standing was to be the winner. Look how much fun they're having.