Posted on 6 February 2015
We see scratches on some of the window panes. The color of those panes matters.
Arrange in descending order by number of panes of like color. Gray before blue.
There is what looks like scratches on some of the window panes. Use the lines on the same-colored panes as strokes to create different characters, starting with the four yellow panes, then the three gray ones, then the three blue / purple ones and finally the single magenta / red pane near the middle.
The solution is stl.la/ヨッシー