Edit I'm aware that some physical games have different components than the playroom version. So specifying playroom would need to be exagerated, though the challenge descriptions do mention that.
Currently pr stands for playroom. Not sure the best way to approach these meta titles. Maybe just game, or parlour game. Or tabletop? I think tabletop would probably fit best.

PR Component Usage:
Which of these playroom games feature the use of board|cards|dice|dominos?
The user is given a list of 5 games from the playroom. Make selection with checkboxes and press done to submit.

PR Identify Components:
Select all components present in game x from the playroom.
Same as before, list of checkboxes. However this one isn't random items, it always has the same values.
Board, Cards, Dice, Dominos.