Text from the back of the game:
A preferably long word with Y? How about x-y-l-o-p-h-o-n-s-p-i-e-l-e-r (xylophone player)? Of course d-e-s-o-x-y-r-i-b-o-n-u-c-l-e-i-n-s-ä-u-r-e (DNA) is much, much better, because it will give you a lot of points! But will it fit into the crossword grid? And where? Where is the next letter situated? You've got to be fast, because the sand in the hourglass is running. And all the other players have entered their words already...

The fast game of words for all crossword-lovers, who like to juggle with letters.