Reverse captcha: only robots can reprove one of the Euler problems on the fly? Statistically speaking we can round the people who can into the outlier group, right?
Like when games detect aimbots, they don't ban people, but put them in an aimbot bracket, so everyone you play with is a cheater.
Provide a captcha that is essentially harder for a human to solve, but trivial for either a human or an AI, and transparently separate them into two communities.
Like when games detect aimbots, they don't ban people, but put them in an aimbot bracket, so everyone you play with is a cheater.
Provide a captcha that is essentially harder for a human to solve, but trivial for either a human or an AI, and transparently separate them into two communities.