Einstein's Riddle

Einstein's Riddle

100,000 - 500,000 downloads

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Einstein's riddle or "Zebra puzzle" is a well known riddle attributed to Albert Einstein. In a neighborhood of five houses one is given some clues regarding the habits of the house owners and is asked to identify the one that owns the fish (or zebra in some variations).

It is said that only 2% of the population is able of finding the solution. I am not sure however, if this percentage refers to the people that are able to solve the puzzle without using a pen and a paper (or a computer). This is indeed very difficult and requires a beyond the average ability to hold too many pieces of information in one's mind at the same time.

This application provides an easier way to solve the puzzle. It presents the rules and the board in the same screen and allows you to easily make selections. It highlights red or green a rule automatically, when it is violated or fulfilled. It also offers easier variations of the puzzles, with fewer houses and properties.

German: Anne Leist

The new permission is introduced in order to integrate Scoreloop

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Recently changed in this version

- Bug fixes

- 20 new puzzles

- 30 new puzzles
- Solve 31 puzzles to disable ads

- 65 new puzzles

- Fixed bug with game count
- 20 new 4x4 puzzles, 10 new 6x6 puzzles

- Scoreloop integration (requires phone state permission)

- 4 new puzzles

- 8 new puzzles
- Option to show rules with images

- 7 new puzzles
- Option to keep screen always on

- 10 new 5x5 puzzles
- Bigger action buttons

- New 6x6 category (2 puzzles)

Comments and ratings for Einstein's Riddle
  • (64 stars)

    by Laurence Still on 28/05/2014

    Half the time didn't register presses, icons are nonsense with no instruction

  • (64 stars)

    by Ezra Bradford on 14/05/2014

    The image display of rules is nice.

  • (64 stars)

    by Michael Camerato on 11/05/2014

    potato I hope this helped u!!! XD

  • (64 stars)

    by Leasa Marie Frederick on 26/04/2014

    A few simple rules to turn the chaos of options into the single working position of tiles. Puzzles get more challenging as grid increases. Most hrelpful and often used button is reset.

  • (64 stars)

    by Larry Qin on 21/04/2014

    Interface could be friendlier

  • (64 stars)

    by G Ben on 18/04/2014


  • (64 stars)

    by flying2uranus on 09/04/2014

    fix bugs!!!