Five letters is not an arbitrary choice. It sits at a precise sweet spot: long enough that random guessing is hopeless, short enough that systematic elimination works within six tries. The most mathematically optimal starting words — CRANE, SLATE, TRACE, STARE — all maximize coverage of high-frequency vowels and common consonants, because the goal of a first guess isn’t to find the word. It’s to eliminate as many wrong words as possible in a single move.
This tool is built around that logic. Enter what you know (confirmed letters, misplaced letters, eliminated letters) and it filters the full five-letter word list down to your actual candidates.
The Opening Word Problem
The letter E appears most frequently overall, S dominates word openings, while Y and E are most common as final letters. A strong opener tests as many of these high-frequency positions as possible with no repeated letters. Pairing two opening words that share no letters (such as CRANE followed by SHOUT) tests ten different letters in just two guesses. This leaves only sixteen letters unaccounted for by your third attempt.