- Level 5 - Easy
- Level 6 - Tricky
- Level 7 - Challenging
- Level 8 - Demanding
- Level 9 - Gruelling
- Level 10 - Mind Boggling
|Object||Open the Lock|
|Difficulty||Level 8 - Demanding|
|Brand||Jean Claude Constantin|
|Types||European Wood Puzzles, Jean Claude Constantin|
|Dimensions||3.94 in x 3.94 in x 1 in / 10 cm x 10 cm x 2.5 cm|
A variation of the Smiley Lock, also by Jean-Claude Constantin. The knobs on the front can rotate, but nothing else initially happens. The objective is to open the happy lock. Can you uncover the secret combination to open this clever lock puzzle? Made of laser cut wood, the solution is obtained by spinning the five knobs on the front to the correct position. A novel design by Jean Claude Constantin.
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