If Chess were a mobile game, you'd be forced to watch an ad after every three moves, the bishop would be on a timer and to use it again you'd have to wait 10 moves or pay using in-game currency, the knight would only be available if you bought the DLC, and the game wouldn't run unless you granted it access to all of your contacts.
- infinite treadmill: theoretically you can play all possible moves but not in a lifetime.
- variable rewards: sometimes you stumble upon (or try) a tactic that works.
- can't pause or save: except when you maybe play against a computer which is not the point of the game
- grinding: you need to play the same openings many many times to encounter all the responses that will let you know if your "build" is worthy
- competition: nothing to add