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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
Anyways, this is a shortest path problem, which means this is a duplicate to many existing katas. For example, https://www.codewars.com/kata/57658bfa28ed87ecfa00058a
Mutating the input breaks the random tests: see this
A namedtuple is more suitable than a dict:
Why force the user to type
egg['x']instead ofegg.xoregg[0]?