The following functions are supported:

The top buttons:

Play For starting a new game - click here.
Hint If you want suggestions for the next move - use this button.
Statistics Here you can see the pathetic history of your wasted time.
Settings Brings up a dialog where you can make your program settings.
About This help screen can be displayed by clicking this button.
Exit For terminating the program. If you have an unfinished game, you'll be prompted for saving.

Playing the game

The object of the game is to remove all the tiles by selecting a pair of two equal tiles. All games consists of a collection with four tiles of each sort, i.e. two pairs that you can combine as you wish.

Each time you click the 'New game' button, a randomly generated game with the selected layout is started. However, you should note that they are put together in a way that all games are solvable. So, if you come to a point where there are no more pairs to select, the program will ask if you accept defeat or want to go backwards with the top buttons to test another solution.

To ease the playing you can right-click a tile to see where the similar ones are.

Note:

Clicking the button will slide in a panel that shows what kinds of tiles that have been removed so far. This can be useful when you are wondering what is hidden below.

Right-clicking the background image will show it without any disturbing buttons or tiles.

In the statistics window you can also right-click the background to see it clean.