If you just want to kill five minutes on the train, Solitaired is my go-to. You...

https://www.ready-bookmarks.win/if-you-re-stuck-on-a-boring-train-ride-and-need-a-quick-mental-break-head-over

If you just want to kill five minutes on the train, Solitaired is my go-to. You don't have to deal with annoying logins or endless sign-up popups. It’s perfect for mobile because the hints are actually helpful when you get stuck