Learn
Everything about word ladders
How the puzzle works, how to get faster at it, where it came from, and how to use it with a class. Start with the rules if you have never played one.
Start here
- What is a word ladder?The rules, where the puzzle comes from, and how a four-letter ladder actually plays.
- Word ladder rulesThe precise rules, and the arguments people actually have about them.
- How to solve a word ladderWork from both ends, count the differences, and stop wandering through vowels.
- Worked examplesReal ladders from the game, walked through one rung at a time.
Go deeper
- Word ladder strategyThe graph underneath the puzzle, and the shapes that make a ladder short.
- Why four lettersShorter words connect more tightly, which is why most daily ladders are four letters long.
- Five-letter word laddersSame rules, sparser graph, longer ladders. Here is what changes.
- What does par mean?Par is not a difficulty setting. It is the length of the shortest ladder that exists.
- Why your word was rejectedEvery word game has a dictionary. Every dictionary is wrong about something.
Background
- Lewis Carroll and the doubletHow a Victorian mathematician turned a parlour game into a puzzle that still works on a phone.
- Word ladder or doublet?Two names for one puzzle, and why the older one stuck in some places and not others.
- How the puzzles are madeA word graph, a breadth-first search, and a rule that keeps par achievable.
- Why one puzzle a day worksScarcity, a shared board, and a number you can compare. That is the whole mechanism.
For teachers
- Word ladders for kidsStart with three letters, remove the timer, and let the wrong rungs be the lesson.
- Word ladders for English learnersThe puzzle quietly drills the part of English that spelling rules never explain.
- What word games teach about spellingNot vocabulary. Pattern recognition, and the cost of being wrong.
Play today’s ladder → one puzzle a day, about two minutes.