Hacker News new | comments | show | ask | jobs | submit login

You could make it much harder for bots by asking the user to click on two numbers (e.g. highest and lowest). I don't think that would be too much extra work for the user as most of the effort is in scanning through all of the numbers.



Guidelines | FAQ | Support | API | Security | Lists | Bookmarklet | DMCA | Apply to YC | Contact

Search: