Four-letter words are everywhere in English, which sounds like an advantage until you start listing candidates. Common letter clusters like -ack, -ine, -ore, and -ake each anchor dozens of words, so a yellow clue that places a vowel somewhere in the word can still leave a wide-open field. The board compresses every mistake more visibly than a five-letter game: one careless guess can wipe out a full row while advancing your understanding very little.
Short words also tend to share endings rather than beginnings. If you have confirmed two letters and both sit at the back of the word, think about how many four-letter words end that way and vary the front pair with your next guess. Working backwards from a known suffix is often faster than trying to nail the first letter when the pool is still large.

