You are given a start word and must enter words until they are transformed into the end word provided. Each new word must differ from the previous in one of three ways:

1. One of the letters in the word is changed.
2. One letter is dropped to make a shorter word.
3. One letter is added to make a longer word.

Words can be of length 3, 4 or 5 letters only and must be valid English words. You have a maximum 16 steps to solve the puzzle.
You may use a physical keyboard instead of the virtual one provided.
Pressing the "Hint" icon will give you a clue as to suggested next word (and number of letters). If you click "More", you will get a definition of that word.
Pressing the "Restart" icon will restart the puzzle.
Pressing the "Undo" icon (or Ctrl-Z) will undo last word entered.
Pressing the "Check" icon will check if there is a solution from what you have currently entered and will tell you how many more steps may be required.
Pressing the "White Flag" (Give Up) icon will show a solution.