This list covers variations of a certain kind of tile based game called Scramble Squares (in German: “Legespiel”) in which square cards must be placed to form a larger square so that the images of all cards fit together at the edges. It shows the number of solutions and what they look like exactly. All solutions were calculated with the software Legespiel-Solver. The results also make it possible to estimate how difficult the respective Scramble Squares puzzle really is.
Author Archives: Andreas Keilhauer
New Home for Gravisto
Gravisto (Graph Visualization Toolkit) is a program for visualizing and editing graphs. Over the course of 15 years, many useful plugins have been developed to handle graphical information efficiently. Unfortunately, this open source project had recently become homeless and needed a new home.
Getting Hierarchical Information into Shape
Family trees, organizational charts, taxonomies or product breakdown structures can be very large. That is why compact and clear drawings of hierarchical information are important. But space requirements vary depending on the individual use case. TreeJuggler can optimize drawings for any aspect ratio. This will be demonstrated in a short video.
TreeJuggler-Tutorial – Tree Juggling For Beginners
Drawing complex hierarchical information manually is both cumbersome and time consuming. This task should not be done manually, but with a suitable piece of software. TreeJuggler is such a tool. It can layout hierarchical information compactly and optimize the drawing for any aspect ratio you need. Here is how to use it…
Problem Reduction – The Most Reliable Path is Just Another Shortest Path
Applications like Google Maps or navigation systems calculate shortest paths or fastest paths all the time. There have been very efficient algorithms to solve this task since the 50s. The most reliable path can be found via the same methods – using a little trick.