A challenge must have an objective winning criterion. However, does this have to define a single winner, or is it acceptable for a challenge to have categories of winners? We already encourage people to think in terms of competing with other solutions in the same language, and we often include a leaderboard that shows winners by language.
A recent example is this challenge to write code that censors its own 4 letter words by replacing the middle 2 letters, while still maintaining the same behaviour when run. The winning criterion is code golf, and it is suggested that solutions compete with other solutions that contain the same number of 4 letter words. An automated leaderboard can easily be constructed for this, and it allows competition with oneself and others in the way that any other winning criterion does.
It seems analogous to sports having weight categories.
Do we want this type of multi-category challenge to be on topic? If so what guidelines should we have for making this work well?