Welcome to Smogon! Take a moment to read the Introduction to Smogon for a run-down on everything Smogon, and make sure you take some time to read the global rules.
Not much more to say - just put Chess on Pokemon showdown as a challenge option. If not on main at least on smogtours, for a break from pokemon. You could have mons be the pieces. Don't need to save replays or anything just for fun. THanks