Word Ladder
Climb from start to goal word, changing one letter per rung. Every step must be a real word.
- Main skill: Spelling
- Level: CEFR A1 to A2
- Age: Ages 10+
- Typical round: About 4 minutes
For teachers Level, timing and a classroom note
What it practises: changing one letter at a time to reach a target word
- letter patterns
- word shapes
- Level
- CEFR A1 to A2
- Age band
- Ages 10+
- One round
- About 4 minutes
- Works best
- Solo
Good for drilling minimal spelling changes; the end screen shows the shortest chain as a worked solution, so a learner who fails still sees how it was done.
✓ Teaches after the answer: this game shows an explanation, definition or worked answer, not just a score.
Follow-up practice: Daily Word Quest, Anagram.
How to play
- Look at the start word and the goal word.
- Type a new word that changes exactly one letter from the current word.
- Each word must be a real English word.
- Reach the goal word before you run out of steps.
About Word Ladder
Word Ladder is a free daily English word chain puzzle built for ESL learners, inspired by the classic invented by Lewis Carroll. You start with one English word at the top of the ladder and must reach a target word at the bottom by changing exactly one letter per rung. Every rung must be a real English word — no nonsense letter strings allowed. The challenge is finding a valid path, and the bonus challenge is finding the shortest possible path in as few steps as possible.
The puzzle is generated daily using BFS over the 7ESL lexicon, so every start–end pair has at least one solvable chain, and the optimal step count is calculated up front — you get twice that many steps to work with. Words are filtered to four to six letters and tagged from A2 to B2 CEFR levels, which keeps the puzzle solvable for intermediate learners without becoming trivial. When the round ends, the shortest chain is written out in full as a worked solution beside your own path, so you can see exactly where you took the long way round.
For ESL learners the magic of Word Ladder is that it forces you to think systematically about spelling neighbourhoods — which letters can change while still leaving a real word — and that pattern recognition transfers directly to spelling intuition and reading speed. Suits B1 to C1 students who want a thinkier puzzle, IELTS candidates and teachers. Free, no sign-up.
Why play Word Ladder?
- ✓ Trains spelling-neighbourhood intuition — a deep reading-speed skill.
- ✓ BFS-validated puzzles guarantee every daily board has a solution.
- ✓ The shortest chain is written out as a worked solution at the end.
- ✓ A thinkier daily puzzle for learners who find Wordle too quick.
Play next
More Word Games
- Connections
- Hangman
- Rhyme Match
- Spelling Bee
- Word Search
- Word Climb
- Theme Hunt
- Mini Crossword
- Word Waffle
- Square Letters
- Quad Word Quest
- Collocation Connect
- Word Twist
- Word Chain
- Boggle
- Word Bingo
- Word Association
Frequently asked questions
How do I play Word Ladder?
You see a start word at the top of the ladder and a goal word at the bottom. Type a new word into the next rung that changes exactly one letter from the word above. The new word must be a valid English word. Repeat — one letter changed per rung — until you reach the goal word. Try to do it in the fewest steps possible.
What counts as a valid word?
Any word in the 7ESL lexicon at A2 to B2 CEFR level, four to six letters long. Proper nouns and archaic English are excluded. If you type a word the game does not recognise, the rung shakes red with a short message. When the round ends, the shortest chain the puzzle allows is laid out as a worked solution so you can read the route step by step.
Is there always a valid solution?
Yes. Every daily puzzle is generated with a breadth-first search on the lexicon graph, which guarantees at least one valid chain from start to goal exists. The system knows that shortest chain from the moment the puzzle is built, and shows it to you as a worked solution once the round is over — so even a puzzle you fail ends with the answer explained rung by rung.
Why is Word Ladder good for English learners?
It trains "spelling neighbourhood" thinking — knowing which letters can swap while leaving a real word. That intuition is the same pattern that makes native English readers fast and accurate. For ESL learners at B1 to C1 it visibly improves reading speed and spelling accuracy over a few weeks of daily play.
How long does one puzzle take?
Most daily puzzles take three to ten minutes depending on how quickly you spot useful intermediate words. There is no clock pressure — Word Ladder is a thinking puzzle, not a speed game — so you can pause, think, and come back. That makes it a great companion to faster games like Daily Word Quest.