Wort Duell (1982)

The game has an upright frame similar to "Connect four". However, the players drop letter tiles into the frame to form words. Each tile has a letter on either side. When a word is formed (no matter how short), the player scores a point. So each time a player drops a tile to form a word on his/her side, he/she might inadvertently form or spoil words on the other side. When all 48 letter tiles are inserted, the player with most points is the winner.