If you’re stuck on a boring train ride or just need a quick mental break...

https://highstylife.com/the-ultimate-guide-to-popular-solitaire-variants-you-can-play-in-your-browser/

If you’re stuck on a boring train ride or just need a quick mental break between meetings, Solitaired is my go-to. You don't have to deal with annoying logins or account sign-ups to start a game