Puzzles

A motif from the calendar "Artificial Intelligence - the future has begun" by Renate Bleicher: Humanoid robots already exist today, but no one ...

A motif from the calendar "A Year on Deck - Discoveries on Tall Ships" by Eva Ola Feix: Anyone who has ever been on a tall ship has experienced...

A motif from the calendar "Wonders of the Cosmos" by Andreas Grelak: Everyone knows the impressive images from NASA and the Hubble Telescope. B...