Each puzzle runs as a standalone .exe file on your computer. No other software is required. All you do is download the puzzle file to some convenient place on your computer (like the Desktop, or your My Documents folder). Double-click on the puzzle icon (it looks like a yellow puzzle piece) to start the program.

When the program loads, you'll see a miniature of the puzzle picture in the center of the gray work area of the puzzle program. Double-click on that miniature puzzle picture to set up the puzzle. Arrange the puzzle pieces into piles, and you're ready to start solving.