If you're asking about the 2007 web-based game on bbc.co.uk, you may want to ask a more specific question.
If you're asking about some other game, you definitely want to ask a more specific question.
If you're asking about real life, Finch explicitly said that it was beyond the abilities of any normal race—it requires a combination of human imagination and Krillitane intelligence. That was the whole reason behind his complicated plan, after all. So it's not very likely that anyone here will be able to tell you. Especially since Adric is dead.