Drag the pieces using the mouse. When two pieces fit together they will automatically combine when you get them close enough to each other.
You can modify the number of horizontal and vertical pieces as well as turn on puzzle piece rotation. Click "Restart Puzzle" if you change the options. Click a piece and then click the "Show Hint" button if you get stuck. Rotate the selected piece with the arrow keys, space bar, or mouse scroll wheel.
Activities 
