Rishi - Sounds more practical and achievable

but everyone (including authors) has to participate in same number of tests so that final score is comparable.

yes Deb, if a person solves less than 6 rounds then automatically their scores will drop. We can keep it in lines with our monthly test that is a particular days round is open for 24 hrs and a person can solve as per their convinience.

It sounds like a great idea - I did 24 hours walking event; 24 hours puzzle solving event would be probably even tougher. Unfortunately, it has been too busy lately and will be for at least next two years but hopefuly when the time comes and I wil have time to play, this event will be already a "traditional one".