The Grandmaster algorithm is currently in its alpha phase, which means that you can have even more significant impact on its creation. We need learners and teachers to help us build Grandmaster and refine its ratings. There are three ways that you can contribute:
Solve problems
When you solve problems you help set their difficulty rating, against which all future users will be compared.
Submit your own problems
When you submit the best of your own problems, you help define the level of quality problems we are looking to feature.
Submit solutions
For those who prefer to teach, your solutions will be what learners rely on to understand new concepts.