“Black hole” was a living squat, five rooms in a big 4 store building. It was squatted in April and evicted in end of November . 6-7 anarchists were living in the squat together with Kostya, a migrant worker from Belarus who originally lived there on his own but then together with anarchists.
There were constant problems with electricity, which was taken from neighbours but constantly cut off. Eventually most of the people had to leave squat in November because of this. Eventually police came with city workers in end of November, they broked door to the street and blocked it with bricks. There was only one person in the squat, who had to escape in order not to get arrested. Cops and workers stole some of the property.
There is a longer statement signed by “St. Petersburg Autonome” , with some photos here: http://ru.indymedia.org/newswire/display/23063/index.php
There are still a number of squatted social centers and living squats remaining in St. Petersburg.
Some video footage from squat: http://www.youtube.com/watch?v=dI9AYROm6Ko