Thanks for the comment! 🧡
As for the "numbers lower than 5" comment, do you mean the individual digits of each number shouldn't be more than 5? (eg: 1324 would be acceptable, 2786 wouldn't)
If so, honestly, I personally liked that bit of difficulty. But I guess I could add a hypothetical "Easy" mode where those kinds of numbers don't appear. Otherwise, if you meant something else, def let me know! I'm curious.