Das Innenhof-Puzzle

Update 27.06.2018: If you want to save your solving progress, please make an account on the website before starting the puzzle.

Update 19.02.2018: We moved the cache, the coordinates from the puzzle will now point to an intermediate stage. All who finished the puzzle before 19.02.2018 18:45 please project 118.65° and 61.88m to get to the intermediate stage.

Update 30.01.2018: it seems you don't get the coordinates if you solve the HTML5-version of the puzzle (this happens automatically on devices/browser without Flash-support). You'll receive a warning on starting the puzzle: "This puzzle environment is still experimental and may not work properly". If this happens, please send us a message or email with photos or a screenshot of the completed puzzle and you'll get the coordinates for the intermediate stage.

No ciphers, no strange thinking, here you need only patience, but a lot of it.

"Just" solve the puzzle ;)

The coordinates from the Puzzle will lead you to an intermediate stage and entrance of an interesting inner courtyard yule_t recently discovered. There is nothing hidden in the courtyard anymore, but you can of course take a look. Here you'll see a beautifully renovated old building, used as a hotel now, and on the other side you'll have a view of a "Lost Place", a building that is empty for at least 10 years now and looks like it.

The coordinates from Stage 1 will lead you to the Final and another viewpoint of the empty building.

You don't need and can't enter the empty building! The inner courtyard is accessible at all times.

We got the idea for the puzzle from the great series by frines in Potsdam.

Have fun!