There is still much more functionality we could add to our simple game. Why not update the game so that it has different skill levels available for the player to choose from?

All we'd need to do to achieve this would be to provide some kind of interface to allow the visitor to select the skill level, and then think of a way in which the game could be made more difficult.

If we assume that the game in its current format is the easiest skill level, one very simple way to make it harder is to increase the number of pieces that the original image is split into. Have a go at doing this yourself. Those of you with a deep understanding of mathematics may realize that our game has another flaw – some random combinations of the pieces will simply not be solvable. Storing or computing all of the possible combinations that are solvable is probably beyond practical, but there is another option.

Instead of randomly shuffling the array of pieces and then writing their positions to the board, we could instead shuffle the pieces by programmatically moving them around the board. A puzzle shuffled according to the rules of the game by which the player is bound would result in a solvable puzzle every time.