Tiles Doc The object of the game is to clear the screen of all the tiles. To do this, click on tile pairs at the edge of left and right rows. Notice that the tiles start off on three levels, so you could click on the book tile that is on the left edge of the top-most level and then click on the other book tile that is on the right edge of a row on the bottom level. If this confuses you, just start clicking and watch what happens. The program will not let you make an illegal move. Also, if you want to take back a move, click with the RIGHT mouse button. In fact, by continuing to click with the right mouse, you can re-create the beginning stacks of tiles. Some hints: get rid of tiles that block off two or more rows. You want as many rows as possible exposed. Also, get rid of those extra levels in the middle but not TOO quickly. The extra levels give you more edges which is helpful at the start of the game, but if you leave them too long, they cover up the tiles beneath them...tiles you may NEED. I LOVE this game!