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.
Double Lock Puzzle - Wooden Brain Teaser Puzzle
$40.00
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2E Puzzle set - Group Special #4
$118.00
$138.98
67 – Mystery Set
$126.00
19 Piece Japanese crystal - Interlocking Puzzle
$30.00
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Moon and Bear Puzzle – Karakuri Puzzle Box
$364.00
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The Brainiac Game
$27.99
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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Unity Puzzle - Metal Brain Teaser
$19.99
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Cube Eleven - Packing Puzzle
$34.00
21 Piece Pyramid
$48.00
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