Probably depends on the kind of solitaire IMO.

I feel like Klondike, -should- be simple enough with a set of vectors/arrays/lists, the biggest thing is making sure you have the traversal logic right. [0]

[0] - I mean, here's an example in VB.NET, where a lot of the game logic is FBOW integrated into the form logic, but hey it apparently is NET8! https://github.com/DualBrain/Solitaire/blob/master/Solitaire...