Somewhat similar to Siege boards... but:
Users may make one at a time.
Must challenge a player within 25 rating points.
Winner keeps board
Chair earns power points
Power points are calculated based on rating.
50 points for the chair plus\minus rating difference.
Thus, if a 1500 player makes xer Power Chair and wins against someone rated 1520 their chair now has 70 points and one win.
That is all tracked.
If the other user wins, they own the power chair and earn the points same way for the win... but now the chair would be 50-20 (rating difference above) for a total of 30 points and one win.
There would be a click place to see the history of each chair, who started it, and all the games played on it and points earned for each win.
Also, on creation you pick a 50x50 image for the chair. Could be a picture of a chair if you like, or any other acceptable image. Offensive images could be removed, but only replaced with a standard image for the board.
Your list of controlled chairs shows up on your profile with info for your records and links to the chairs.
If you are unable to start a game within 7 days, the chair is locked and you must pass it to another user of your choice who is rated no less than 200 points bellow you (this will help keep top rated players from having all the chairs eventually).
If the chair is automatically pushed to a user in another 7 days, it is automatically put in a list where it's first come first serve for users rated 200 or lower.
Oh, and they explode sometimes... for LULZ.
As long as you control any power chairs, you can't start a new chair.