Cover common letters efficiently
A first guess has no board-specific clues, so breadth matters. Five distinct letters normally reveal more than a word with a duplicate because each tile tests a different letter. Common vowels help establish the shape of the answer, while common consonants separate families that otherwise look alike. Our word-library selection uses this narrow principle: it rewards distinct letters that occur across many possible answers.
Plan for the second guess
The value of an opener is not only the number of green or yellow tiles it produces. A good start should leave you with a manageable follow-up. If your clues leave MATCH, CATCH, HATCH, BATCH, and WATCH, guessing CLIMB can test several opening letters at once. Rearranging the letters you already know will not separate those answers. Use the solver after turn one because the best next guess depends on the pattern you received.
Answer guess or information guess?
Playing a possible answer gives you a chance to win on the current turn. Playing a broader probe can eliminate more alternatives. Early in the game, information often has room to pay off; late in the game, the chance to finish matters more. Hard mode can also restrict probes by requiring you to reuse revealed clues. There is no context-free winner between these goals.
A practical opening routine
Choose a familiar word with five distinct, common letters. Enter the exact feedback, including duplicate-letter grays. Review both remaining answers and information-rich guesses. If only a few answers remain, prefer a genuine candidate; if many differ in one or two positions, test the letters that distinguish those families. This repeatable routine works across more boards than memorizing one fashionable opener.