If you've not come across this puzzle before, then hopefully you will enjoy it!
All you need to do is work out how the number that goes in each cell. At the end of the puzzle every cell should have a number in it. You may move just one square at a time, though this can be in any direction - that is up down left right or diagonally, depending where you are on the grid. For instance if there is a '1' in the top left cell of the puzzle, then the '2' must be in one of three locations: immediately to the right, immediately below, or immediately below and one to the right.
If you are unsure, take a quick look at the solution before tackling your first hidoku puzzle. There are lots of hidoku puzzles of various sizes to enjoy inside the members area.