Feature Request: Ability to Enter a Placeholder Character (?, -, _, etc.)

[BrandonXavier-1]

I often find it helpful to be able to work out my guesses visually by entering a placeholder character - currently we can only use alphabetic characters - I generally use "X". It would be nice if we could put in a special character instead. For example, currently if I'm working a 5 letter puzzle and know the the letters "I", "C", and "E", I might type in "XXICE" while I'm thinking about my real guess. It would be nice to be able to type in something like "--ICE" or "??ICE" while working out my guess. Naturally, guesses with special characters should NOT be submittable.

Thank you for your consideration, and a GREAT variant of the original Wordle!