Interesting this very unique I have never seen a feature like this in a coin, I once mine using my browser, but a turing test mining software is something all of us have not tried in the past, but this is subject for abuse also because a company can hire people to do turing test every 6 days, this will have a massive adoption and big exchange will list this coin.
Its easier said than done, Its not your usual captcha or turing code that you see everyday. If you want to test it out yourself without any invite code or downloading the wallet you can try it here -
https://flips.idena.io/?pass=idena.io just add a dummy email address and you can see and solve the previous flips challenges.