I was watching a game where this shape appeared, the white guy made the move (triangle) and the black moved wrong, but the white guy didn't killed him ;I think that was stupid, I'm a 26k and I can see it ... and the white guy told me that he was 8k ... I think it0s pretty strange, the other guy (an 21k ... he lost of course) didn't see it too ... am I a Genius? I don't think so try it.
PS : "L'isola della Bira" is a great in Milano (Italy) when u drink bear and play go ... that's paradise (it miss some chick ... but nothing is perfect).