The challenge involves mathematics in some central way. Also consider using more specific tags, listed in the tag wiki info.

Challenges relating to or in some way involving mathematics; that is, solving a math problem is needed to come up with a solution, or the solution is a program that solves a math problem, or the program generates math problems, etc.

This is a very vague tag, so also consider using more specific tags to indicate the field or type of mathematics likely to be involved, such as: