Is Solitairdle supposed to be an only 0.001% chance at winning? And needlessly frustrating? I have my doubts that it's a 2 star difficulty game.
It has seemed fairly easy to me overall; the important thing to note is that you have only 4 of each letter, so once you notice that a letter is involved in the word, preserving the copies of that letter left becomes very crucial. Also since you can't reuse a letter that's known not to be in the word, it can be important to try to "throw away" letters likely not to be useful in cases where that allows you access to more useful letters/cards. It's quite messy.