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[[FILE:KruppsDevils.jpg|border|right|thumb|400px|link=http://www.thescreamonline.com/art/art7-1/kley/kley.html| [[:Category:Heinrich Kley|Heinrich Kley]] - The Krupp's Devils 1912/1913 <ref>[[:Category:Heinrich Kley|Heinrich Kley]] - Die Krupp'schen Teufel (The Krupp's Devils) 1912/1913, The bacchanal in which [https://en.wikipedia.org/wiki/Satyr satyrs] and devils pour in liquid steel, once served as a wall decoration in one of the [https://en.wikipedia.org/wiki/Krupp Krupp] casinos. Source [https://de.wikipedia.org/wiki/LWL-Industriemuseum LWL-Industriemuseum], In June 2017 at [https://www.lwl.org/industriemuseum/standorte/henrichshuette-hattingen/english Henrichshütte Ironworks - Museum of iron and steel], [https://en.wikipedia.org/wiki/Hattingen Hattingen], [https://en.wikipedia.org/wiki/North_Rhine-Westphalia North Rhine-Westphalia], [https://en.wikipedia.org/wiki/Germany Germany], part of [[:Category:Industrial Heritage Trail|The Industrial Heritage Trail]] of the [https://en.wikipedia.org/wiki/Ruhr Ruhr area], Image from [http://www.thescreamonline.com/art/art7-1/kley/kley.html The Art of Heinrich Kley], also photographed by [[Gerd Isenberg]] on June 11, 2017</ref> ]] '''Dumb7Fill''' - ,<br/>the obvious, straight forward [https://en.wikipedia.org/wiki/Flood_fill flood-fill] approach works '''set-wise''' - '''seven''' times one fill-cycle by [[General Setwise Operations#OneStepOnly|one step only]] in one of eight [[Direction|directions]].