Labyrinth is a simple computer game with a board game-like feel. Two players must draw lines between lettered squares and complete a line from left to right or from bottom to top. At the same time, you must prevent your opponent from completing their line. Each player has 20 letter tiles (in their own color, red or green, with uppercase or lowercase letters) at their disposal. Both players are under time pressure. Each player has 60 seconds for all their moves.

Labyrinth was played in the studio during the early evening show Karussell on Swiss television SRG. One contestant was allowed to be in the studio, while the second contestant joined via telephone from home. The host typed the letters into the computer, and the game board was displayed on the computer screen and on TV.

The episode from September 7, 1983, is archived as a video at SRF and is publicly accessible. From minute 13:11 to 16:25, the computer game can be seen with studio guest Claudia Färber and Manuela (on the phone). Claudia manages to win the game after 52 seconds.