You can slide the tiles using the cursor keys or by clicking the mouse. Select any bitmap (*.BMP) or JPEG (*.JPG) pictures as puzzle background. Simply choose 'Open picture' from the 'Game' menu or drag-and-drop the image file onto the program. Press PageUp or PageDown keys to cycle through all pictures located in the same folder as the opened picture. From the 'Zoom' menu, you can increase or decrease the picture size by selecting a zoom factor other than 100%. This can come in handy when the picture is too big or too small. Select 100% for normal picture size.