The goal is to build a single vertical column of nine cards, the 9 at the top and the Ace at the bottom. At the beginning there are three columns of three cards each. The player can move cards between different columns following these rules: only the exposed card in each column can be moved and only if the exposed card in the destination column is higher in rank.
Click on an exposed card to select it, then click on the destination column to move it. Press +/- to enable/disable sound.