How the hints work:
Select the puzzle you would like hints for and the hints will appear in a new window.
There are 3 hints for every problem: A hint, a bigger hint, and the full answer. So if the first hint doesn't help you, just click on the link for the bigger hint. If that doesn't help you either then click on the link for the solution which explains how to solve the puzzle.
Sometimes it is required that you solve one or more certain puzzles before you can solve the puzzle you are stuck at. In those cases, the puzzles are listed in "ladders". For instance in this example you need to solve puzzle 1 before you can solve puzzle 2: