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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.
Prolog translation
c# translation
Typescript and Julia translations.
Java translation
Almost exact duplicate of https://www.codewars.com/kata/friday-the-13ths You could forfeit that kata and submit a translation. Oh no, there is already a python translation pending...
Also the same theme: https://www.codewars.com/kata/1st-day-of-month-that-are-sunday-in-a-year-range which is just the recreation of https://projecteuler.net/problem=19
Probably should add tests with leading and/or trailing whitespaces.