If you’re stuck on a boring train ride and need a quick mental break, give...

https://tiny-wiki.win/index.php/The_Ultimate_Guide_to_Popular_Solitaire_Variants_You_Can_Play_in_Your_Browser

If you’re stuck on a boring train ride and need a quick mental break, give Solitaired a try. It’s my go-to because you don’t have to waste time creating an account just to start a round