This is a very challenging 2 layer puzzle that has 6 Keys (K1 through K6) and the keys are numbered as shown below, so the key with the number 4271 is K1, the key with the number 0382 is K2 and so on.
The objective of this puzzle is to free one of the 6 keys (it is not possible to free the other 5 keys).
Note: Colors may vary, depends on the type of wood used by the artist
excellent quality with high attention to details.
Handmade by Siebenstein Spiele, puzzles designer, inventor, and artist.