Pool Checkers Library is a part of a large Ucoz network. In order to register on the site you need to register with the Ucoz network first. This is actually a good thing - many checkers sites are built on Ucoz, once registered you could then access many sites.
Unfortunately there is a problem with the too fuzzy CAPTCHA security code - Ucoz set it up at an extremely high level, and many people just give up trying to guess the number within. A couple of advices: 1. Keep clicking on the box to change the number within until you see a more readable number. 2. Use View/Zoom to increase image size to see the number even better.
