This famous game of logic invented by Lewis Carroll will test your vocabulary and your powers of logical reasoning.
The object of the game is to transform one word into another by changing a single letter at a time. Each change must produce another English word. See the screenshots for an example.
New puzzles can be downloaded from the Doublets online database. Many of these puzzles are created by other players.
Challenge other players by creating your own puzzles and uploading them to the database.