Questions & Answers about Herní plán je na stole.
Czech does not have articles like the or a/an.
So herní plán can mean:
- the game board
- a game board
Which one is meant depends on context. In this sentence, the context or the translation tells you it is the game board.
Hra is the noun game.
Herní is an adjective built from hra, and it means something like:
- game
- gaming
- related to a game
So:
- hra = a game
- herní plán = game board / board used for a game
English often uses a noun before another noun, as in game board. Czech usually prefers an adjective here, so herní plán is more natural than trying to copy the English structure directly.