Word ladder (also known as Doublets) is a word game invented by Lewis Carroll. A word ladder puzzle begins with two words, and to solve the puzzle one must find a chain of other words to link the two, in which two adjacent words (that is, words in successive steps) has one letter swapped.
- Play starts with a starting word and an ending word that exists in the PuzzleFoundry thesaurus
- Starting and ending words must be the same length (like good an evil, each four letters). Shorter words are more likely to have solutions than long words.
- One can swap any letter at a time, attempting to move from the starting word to the ending word. In the PuzzleFoundry version you can also swap a letter with any other letter in the same word.
- Each intermediate step must be a valid word
- funny -> fanny -> canny -> candy -> bandy -> baldy -> badly -> sadly
- good -> goad -> road -> read -> real -> veal -> veil -> evil
The steps in the samples from (baldy -> badly) and (veil -> evil) illustrates swaps within the same word.
Note that results may change over time as words are added or deleted.
Unique Functions are processing intensive and are available here
krisvan 2017-10-18 02h31