Level 4 puzzles push the limits of patience, logic, and spatial reasoning. These puzzles design often involve multiple steps or layers and can take hours or multiple sessions to solve. What to expect: Intricate burr puzzles, puzzle boxes with hidden internal mechanisms, and early-stage sequential discovery puzzles.
IX Burr Puzzle
$16.00
Labyschloss Lock Maze
$74.00
3 Puzzle Locks Set
$160.00
New Secret Box I - Karakuri Puzzle Box
$94.00
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Falling Star Wooden Puzzle
Starting at $18.00
H&H Metal Puzzle - By Oskar van Deventer
$19.99
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The Genius Puzzle Collection Set
$252.00
$316.00
BrainStorm - Wooden Assembly Puzzle
$40.00
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Double Lock Puzzle - Wooden Brain Teaser Puzzle
$40.00
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The Piston Puzzle Set by Felix Ure
$526.00
$554.00
19 Piece Japanese crystal - Interlocking Puzzle
$30.00
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21 Step Japanese Puzzle Box Aka Fuji - Puzzle Box
$217.80
$242.00
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Karakuri Puzzle Box XYK 13 steps
$624.00
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