Redactle is one of the most recent triumphs to result from the Wordle-induced surge in word guessing. You need to start making educated guesses about the words that might appear in the article in order to play the game and identify which article you are seeing. When a word is correctly predicted, it will be found, and if many words have been found, the topic of the article can be accurately predicted. However, there is a great deal of predictability being discussed.
Some words are not covered. When everything else is constrained by literal meaning, punctuation is only displayed for words like is, it, a, on, the, and other prepositions and articles. However, over time and with patience, you can eliminate the majority of hidden words and perhaps even uncover complete sentences that (ideally) allude to the topic of the modified Wikipedia article.