[D] What are some non-trivial but achievable exercises in reinforcement learning? • r/MachineLearning

It's a lot more involved, but the Easy21 assignment from David Silver's RL course is a very thorough intro to RL - it does require going through requisite material in the course though. This is in opposition to putting a cross-entropy loss on a CNN and training it on MNIST - courses/practicals will vary on how practically they deal with this task vs. how much they go into the underlying theory.