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.
Cast Two Keys Puzzle - Tetso Metal Puzzle
The Cast Two Keys Puzzle is a charming, beginner-friendly brain teaser designed to engage curious minds of all ages. The objective is simple yet satisfying: separate the two interlocked metal...
Cast Taurus Puzzle - Tetso Metal Puzzle
The Cast Taurus Puzzle is a beautifully crafted 3D metal brain teaser designed to resemble two interlocked bull heads. Your objective: separate the two Taurus-shaped pieces—and then figure out how...
Quaternary Box - 1,536 Step Karakuri Puzzle Box
This Quaternary Box stands out as undeniably one of the most formidable challenges among Karakuri puzzles you might ever encounter—no exaggeration! Opening it demands an impressive 1,536 steps, navigating a...
Japanese Himitsu Bako - 10 steps
There are 10 steps to breach the inner sanctum of this exquisitely crafted, intricate Japanese Himitsu Bako. Included on all faces are dazzling geometric patterns, composed of different wood grains...
Five Levels of Metal – Tetso Puzzle Set Vol. I
Five Levels of Metal – Puzzle Set Vol. I is a curated collection of five mechanical puzzles, each offering a different style of challenge, ranging from elegant symmetry to mind-bending...
Butterfly Lock Box – “Pleasure and Pain” Puzzle
A true masterpiece from mechanical puzzle legend Wil Strijbos, the Butterfly Lock Box—formerly known as Pleasure and Pain—is an uncompromising challenge crafted from precision-machined aluminum and steel. This isn't just...
