The Copenhagen Party (TCP) 1997 was held in Copenhagen, Denmark by 'Dansk Gruppe af Computerfreaks'. It was the first and only TCP, and lasted for an entire week. For more information, see the recollections of Punqtured, one of the organisers, at Pouet.net.
A homepage existed at http://home4.inet.tele.dk/chevy/tcp97/ at one time, but unfortunately no snapshots of it exist at the WaybackMachine.
Results based on results.txt from scene.org.