The cache is not at the posted coordinates, you will need to solve the puzzle to find the actual coordinates.
This cache is mainly designed for new persons in town or tourists who like to combine sightseeing with geocaching. It is a mystery that leads you through Luxembourg City to some nice Points of Interests (PoI). Regional geocachers could also rediscover Luxembourg City with a new cache format (knowing that some very nicely done Wherigo and Multi-cache already exist).
Here is the puzzle you need to solve:
In the cache description, there is a picture of 10 Luxembourg City Points of Interests (PoI) to which a number was assigned. During your tour through Luxembourg City you have to identify from which building/monument the object of the picture has been taken out:
A = Philharmonie Luxembourg (Grande-Duchesse Joséphine-Charlotte Concert Hall)
B = Grand Ducal Palace
C = "Gëlle Fra" (Golden lady) Memorial
D = Huelen Zant (Hollow tooth) on the Bock
E = Fort Thüngen (here are also the “Musée d’Art Moderne Grand-Duc Jean” –MUDAM- and the "Musée Dräi Eechelen")
F = Neumünster Abbey
G = Pfaffenthal Lift
H = Statue of Grand Duchess Charlotte on Place de Clairefontaine
I = Notre Dame Cathedral
J = Central Railway Station
Finally, you have to put the PoI number you have identified into the following equation:
N49° A B . C D (E+D)
E006° (F-D-A) (G+E) . H I (J-I-E)
About this cache: I got this idea from a similar cache in Vienna (https://coord.info/GC5KZAM ). I thought it was a great idea; so I have hidden one similar cache in Luxembourg City.
About the Difficulty rating : it represent the cache difficulty ; puzzle difficluty is more around1.5.
Happy Geocaching to you