I like the clean UI and a quite unique concept that reverses a simple wordle game. Loved it.
But, I don't think that there should be a null value in the initial state of each word. Since the color black in the initial state can get confused with the "no word" grey.
I actually confused for a while, since I only change to green and yellow assuming the starting state is "black(no correct word)", this make me second-guess my ability to read, until I get negative 20 points and then I realize where the problem is XDD