Games · Word Ladder

Word Ladder

Transform a start word into a target word by changing one letter at a time. Every step has to be a real English word. The shortest path is the par; finishing in par or fewer steps is the win. Daily puzzle, fresh each day — same start and target for every visitor.

Controls

 
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Word Ladder board

 

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Click a tile to select; type a letter to change it. Enter submits. Backspace clears.

Status

About this page

Word Ladder is Lewis Carroll's 1877 word-transformation puzzle, originally called Doublets. The page picks today's start and target deterministically from a curated set keyed by the calendar date — no server, no leaderboard. The dictionary is loaded from a sibling file on first visit, derived from a public-domain English-word list and pruned editorially. The shortest path is computed with BFS over the one-letter-distance graph, in your browser.

Nothing leaves your browser. Your steps, your best-step counts, your settings — all local. Stats are kept in localStorage under the mungomash:word-ladder: namespace; clearing site data resets them. There are no accounts, no leaderboards, and no telemetry beyond the site-wide page-view counter.

How to play

The rules. The board shows two locked rows: a start word at the top and a target word at the bottom. Your job is to fill the rows between them with valid words, changing exactly one letter at each step, until the row immediately above the target matches the target.

Typing. The active row is the one you're keying in. Click a tile to position the cursor; press a letter key to change that tile; the other four tiles stay the same as the previous row. Press Enter (or click Submit step) to commit the row. Backspace clears the selected tile back to its inherited letter.

What counts as a step. A step must change exactly one letter from the previous row, and the resulting word must be in my English dictionary. Changing zero letters or two-or-more letters is invalid; entering a non-word is invalid. Invalid submissions trigger a shake; no penalty — just try another.

Par and the win. The par count is the shortest possible solution (computed from the dictionary). Finishing the ladder in par or fewer steps is a "win at par" — a small flex. Finishing in more steps still counts as a finished puzzle. There's no hard time limit.

Hint. Hint suggests the next word on the shortest path from your current row to the target. Useful when you've wandered into a dead end. Using Hint on a daily run marks the run as assisted — the run finishes normally but doesn't update your personal-best step count.

Today vs. Practice. The Today tab is the daily puzzle — same start and target for every visitor on the same calendar date. The Practice tab generates unlimited random ladders; pick 4- or 5-letter and tap + New ladder for the next one.

Stats

Played

Win %

Streak

Max streak

Best step counts

Daily 4-letter best
Daily 5-letter best
Practice 4-letter best
Practice 5-letter best