Add predefined levels and difficulty

[letscho123]

First I'd like to thank you for the great game!

It would be nice to have predefined levels like in many other similar games.
For example start with 20 very easy levels in 4x4 to 6x6 matrix and then increase the difficulty and the grid size and/or add more difficult operations.

This would be helpful for new users to get started and keep people more motivated for the longer term.

[meikpiep]

Thanks for the issue and sorry for the long delay without feedback into this.

I'm currently not sure which direction to go with the game. I'm happy with adding some extra stuff (current working title 'challenges') to create a gaming experience which differs relevant from the randomly created grids with a given difficulty, size etc. I'm puzzling with your idea, but it will take time to see clear which way could be valuable for the game. May be, the game needs a vision or such a thing.

A proper 'entry game' to lead inexperienced users into the rules and workflow of solving a grid is a thing likely to be done.