Rules: Paint some cells black and then draw a single noncrossing loop, travelling along all remaining cells, moving horizontally or vertically with connecting the centers of the squares. The numbers outside the grid indicate the lengths of blackened cell blocks in the corresponding directions, in order. If there is more than one blackened block in a row or column, there must be at least one white cell between the blocks.
Background: This type was introduced by Riad Khanmagomedov, in round 4 of IPST 2006. Also he made it for 9th 24 HPC. This one was from me, I prepared it for Puzzle Portal of LMD e.V. I cut the loop of Graffiti, and added no touching rule, so it became a Snake variation puzzle, Graffiti Snake in Snake Variations Contest 2011. I credited this to Riad, because it didn’t seem fit to me to get the idea owner title, just by transforming the loop to snake.