I am trying to make a user story for a basic Sudoku game, using the agile software development approach.

I get the concept behind user stories, but I was just wondering if it was possible to get an example to further my understanding?

Would saying

• As an avid Sudoku player, I want to have multiple levels at different difficulties.
• As a new player I want an introduction level to the game to teach me the basics.

count as a user story?