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The Best Wordle Word, According to Information Theory

SALET is the best-known information-theory opener today, but the right next guess depends on candidate splits, hard-mode limits, and solve-speed.

Veena Games Team The people who build and test the games 7 min read

For pure wordle information theory, the best-known opener is SALET, not CRANE. It is not magic. It is a high-splitting first guess, and its claim depends on the answer list, the allowed-guess list, and whether you score average information or average solves.

The phrase mathematically best Wordle word sounds tidier than the problem is. A guess can be best at reducing the average number of remaining answers, best at avoiding disaster branches, best at winning in 6, or best at reaching the answer fastest. Those aims overlap. They are not identical.

The useful lesson from the crane salet Wordle argument is this: your opener matters less than your second guess. A strong first word buys you a cleaner map. Your next move should use that map, not worship the opener. Count what is still possible, look for the letters and positions that separate those answers, then decide whether you are splitting the field or taking the solve.

So which word is the mathematically best Wordle opener?

The honest answer is narrower than most pages admit: SALET is the best-known opener if you define best as expected information against the classic answer list. That means it tends to divide the possible answers into smaller piles after the first colour pattern. Smaller piles make the second guess easier.

That claim is not the same as saying SALET is always the best move. Information theory scores a guess by the shape of its possible outcomes. A five-letter Wordle guess can produce up to 243 colour patterns, though the duplicate-letter rules make the real pattern set less tidy. A strong information word spreads answers across many useful patterns rather than dumping them into one large grey-and-yellow heap.

SALET works because S, A, L, E, and T are busy letters in ordinary five-letter answers, and because their positions create many separating patterns. CRANE is also strong. It tests C, R, A, N, and E, all valuable letters, and it feels more natural because it is an answer-like word. Natural is not the same as maximal split.

The wrong move is treating the opener ranking as a script. If your first result leaves a small, guessable set, a high-entropy second word may waste a turn. If the answer is clearly among a tight family, take the answer or play the family-splitter. If the game you are playing uses a different answer list, accepts a different set of guesses, or excludes obscure openers, the top word can change.

Use SALET when your version accepts it and you want a clean first split. Use CRANE when you want a strong, memorable opener that behaves well without feeling artificial. Then stop asking which word is best in theory and ask which remaining answers your next guess separates.

Why do some strong openers beat cranny words like crane and salet, and when do they not?

A word can beat CRANE or SALET only under a named scoring rule. Change the scoring rule and the winner can change. The useful comparison is the scoring rule, not the brand-name opener.

Opener or approachWhat it is trying to winWhy it can beat CRANE or SALETWhen it is the wrong move
SALETAverage information after guess 1It spreads common letters across useful positions and is widely cited as the pure split benchmark.If your game rejects it, or if you prefer answer-like words, its theoretical edge is no help.
CRANEReliable human playIt tests common consonants and vowels in a word many players remember without checking a list.It can leave heavier branches than the top entropy words, so it is not the pure mathematical champion.
ROATE or SOAREAllowed-guess-list optimisationSome solvers rate obscure legal guesses highly because they split the answer list well.If the word is not accepted, or you cannot make sense of the follow-up, the score is academic.
RAISE or TARESBalanced letters with an easy second guessThey test a dense mix of vowels and consonants, which often gives a clear human plan.They can over-test letters that are already easy to place later, leaving awkward consonant families.
An answer-first openerFast solves over clean partitionsA word that can itself be the answer has a small chance of ending the puzzle immediately.It is weaker when you are training a repeatable information-theory line rather than chasing an early hit.

How should you choose between information and solve-speed on the next guess?

  1. List the plausible answers first. Do not guess from mood. Write or mentally hold the words that match every green, yellow, and grey. Reason: information only matters against the answers still alive. Wrong move: if you can see only 1 plausible answer, take it rather than performing theatre.
  2. If several answers differ by the same slot, test that slot. A pattern such as BOUND, FOUND, HOUND, MOUND, POUND asks for the first letter, not another broad vowel sweep. Reason: one position is carrying the uncertainty. Wrong move: if the family contains an uncommon answer you would not expect your game to use, do not let it dominate the whole turn.
  3. If several answers share a frame but differ by multiple letters, play the best splitter. Use a guess that touches the letters separating the largest group. Reason: a direct answer may only eliminate itself. Wrong move: if you are on guess 5, a non-answer splitter can leave you no room to finish.
  4. If a candidate answer also separates the field, prefer it. A live answer that tests useful letters gives you both a chance to solve and a chance to learn. Reason: it combines solve-speed with information. Wrong move: if it repeats known letters and ignores the real fork, choose the splitter.
  5. If hard-mode rules apply, reject illegal brilliance. A perfect normal-mode probe is useless if it breaks the clues you must use. Reason: a legal line you can play beats a better line you cannot. Wrong move: in normal mode, copying hard-mode caution can cost a clean rescue guess.

Which letter patterns should you avoid even if the score looks good?

When is a hard-mode line better than the highest-information line?

A hard-mode line is better when the best legal candidate also protects you from a known trap. Highest-information play often uses a probe that cannot be the answer. Hard-mode thinking asks a harsher question: if this guess is wrong, can I still finish the branch?

The key test is decidable: after choosing a guess, look at the worst colour pattern it could return. If that worst branch still leaves you a playable route, the guess is sound. If it leaves a pile of near-identical answers and too few turns, the information score has flattered it.

Frequently asked questions

Final thoughts

I would not spend much energy defending one sacred opener. Pick a strong one, learn its usual second moves, and be honest about what the colours have actually told you. SALET is excellent if it is accepted. CRANE is perfectly playable. A weaker opener followed by a sharp second guess will beat a clever opener followed by autopilot.

The best practical habit is to name the fork. Do not say, I have no idea. Say, I am choosing between STARE, SNARE, SPARE, and SCARE, so the second letter is settled and the third letter matters. Or say, I have greens at 2 and 4, and the remaining candidates differ mostly in the first consonant. Once you can describe the uncertainty, the next guess usually becomes obvious.

Information theory is useful because it punishes vague guessing. It makes you ask what each result would do before you press enter. But Wordle is still a small human puzzle, not a spreadsheet contest. The board does not care that your opener ranked first in someone else’s solver. It cares whether your next word cuts the branch you are actually standing on.

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