The 2012 Loebner Prize competition (based on the Turing test) will be held at Bletchley Park. A Bletchley Park Trust press release explains the competition procedure:
The judges at the competition will conduct conversations with the four finalist chatbots and with some human surrogates, and will then rank all their conversation partners from most humanlike to least humanlike. The chatbot with the highest overall ranking wins the prize [a bronze medal and $7,000].
The competition will take place on 15 May 2012, starting at 1:00pm. Visitors to the Park will be able to follow the conversations on screens in the Mansion and these will also be streamed live online for the first time.