http://3cbzkrvakrpetjjppdwzbzqrlkmzatjs7jbyazap5gwutj32gcltjpqd.onion
(I did use a very weak variant of
it, though; no element can have smaller popcount than the first one.
Otherwise, you could just swap those two elements and shuffle columns
around, and it wouldn't be in conflict.) However, there is more that we can do which isn't in conflict.