This application - great opportunity to check your logic in solving of the famous puzzle "Einstein's riddle" or Zebra Puzzle. - Puzzles are generated randomly. - Possibility to save and load the game. - Hints about conditions violations. - Three difficulty levels Free, no ads, no In-App Purchases. The zebra puzzle is a well-known logic puzzle. It is often called Einstein's Puzzle or Einstein's Riddle because it is said to have been invented by Albert Einstein as a boy. The puzzle is also sometimes attributed to Lewis Carroll. However, there is no known evidence for Einstein's or Carroll's authorship.