I could not figure out Time Travel until I made an accidental click and discovered that I could to get the same card from another empty spot in the bottom row on the turn that I needed it.
AAHAA that explains a lot. One more off the list.
For Fork: remember that you can pick up any stack, no matter the order. And you can "remove" a fork and move it somewhere else. Like here I can always take this 8♥ and move it somewhere else, so I can fork the right stack again.
Not easy and very doable.
36 days ago(+1)
I actually was able to win a game of Fork Solitaire thanks to your advice! Thinking of it like Tap Solitaire was helpful :3