It’s Computational Thinking:CT Skills - Algorithmic Thinking (AL), Evaluation (EV)CS Domain - Data, data structures and representationsTags - Graph, Traveling salesman problemThis task requires you to understand a set of rules (how to play word chain, https:// en.wikipedia.org/wiki/Word_chain), a clear and practical representation of the data (the graph), and then to find an optimal solution in the given system. All of these are typical tasks computer scientists enjoy.With some extra knowledge of computer science, you may recognise the given problem as searching for the longest path in a directed graph. This is closely related to the well known Traveling salesman problem (https://www.youtube.com/watch?v=SC5CX8drAtU), but also a well known problem on its own (https://en.wikipedia.org/wiki/Generalized_geography). Computer science tells us that finding the longest game for bigger vocabularies (mind that you know thousands of words!) is not feasible, it takes too long with even the best algorithms we have to date. Maybe you can come up with a better one?