I don't follow. Explain more.
for example a type of problem that is about the topic that they want for example "statistics" and then randomly is set 1 problem for both so the one who does it fast wins easly (no split screen ofc) it could have a ladder system like starcraft 2
![Tongue :P](http://ez.feedthetrolls.net/Smileys/default/tongue.gif)
I think that there is already a website if not meh It would be a good idea indeed