In this game you find a board of 7x7 squares. The game tiles, which you can place on the squares of the board, contain four small pieces. In the beginning 3 such tiles already lie on the board. Right of the board you see a new tile, which you must take and drop on an empty square, but edgewise to one or more already placed tiles.This will only work, if the pieces on the new tile are the same as the pieces, to which you want to drop them. The new tile can be rotated while dragged. If there is no chance, that the new tile will fit , you can eliminate it by dropping it in the black hole right of the board. If you succeed placing 9 tiles in a 3x3 sqare, you will reach the next level. Now the board will be cleared and 6 tiles are laid out. In the third level there will be 9 tiles. After 3 levels there is a new kind of piece added. So the count of different pieces increases and it will become more and more difficult to place tiles. The shrinking time bar shows you the remaining time. Each placed tile makes it longer but not long enough to play endless.