A secret opening puzzle is a type of puzzle box that has a hidden compartment that can only be accessed by solving a puzzle. The puzzles can vary in difficulty, from simple slide puzzles to complex mechanical contraptions. These puzzles are often made of wood and can be quite intricate. They make a great gift for puzzle enthusiasts or anyone who enjoys a challenge.
The Piston Puzzle Set by Felix Ure
$526.00
$554.00
Quaternary Box - 1,536 Step Karakuri Puzzle Box
$1,448.00
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Queen Cast Chess Puzzle - Hanayama Chess Puzzle
$36.99
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Japanese Himitsu Bako - 10 steps
$112.00
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Five Levels of Metal – Tetso Puzzle Set Vol. I
$91.75
$107.95














