This is interactive screen saver: You may watch intelligent engine playing tetris, or play yourself. This screensaver plays the well known game Tetris: it keeps the glass from filling using a build-in intelligent engine. Its remarkable distinction from other screensavers is that you can take control over the game by pressing arrows or spacebar, and try to outdo the computer. When you are tired just stop playing and automatic playing will be resumed. The best results are stored on the disk and showed on the playing field. Current time is showed on the desktop, as well as the number of lines deleted and gained points. Various adjustable options and color modes are included. The program takes only a couple of hundred kb on your disk. Both installer and uninstaller utilities are included.