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For More Results - Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22    Sort: Bestselling!NewestAlphabetical (A-Z)Alphabetical (Z-A)Price (Low to High)Price (High to Low) Include Out-Of-Stocks Magnacube w/ Stand - Magnetic Wooden Assembly Puzzle $28.95 Four T - Brain Teaser $6.95 Copernisis NKryptor - Metal Brain Teaser $69.95 IQ Tester, Baseball - Peg Puzzle $8.95 Four Piece Pyramid - Brain Teaser $6.95 Avenger - Burr Puzzle $10.95 1 Mame, 4 Step: Koyosegi #2 - Japanese Puzzle Box $38.95 Cowboy's Hobble - Disentanglement Puzzle $8.95 Celtic (Brown) - Secret Box $31.95 Hoberman Sphere - Rainbow $32.95 Speed Cube, 4x4x4, Black - Puzzle Cube $16.95 X-Ball and 96-Page Guidebook - Magnetic Puzzle $29.95 4 Tricky 2 Way - Magnetic Tessellation Puzzle $7.95 Triangle Mania - 72pc Magnetic Tessellation 72 pieces $8.95 ABC - Metal Disentanglement Puzzle $11.95 2.5 Sun, 12 Step: Koyosegi - Japanese Puzzle Box $76.95 Claw - Cast Puzzle $11.95 Genuine Article (Group 8) - Tavern PuzzleNEW $18.95 Mame, 10 Step: Koyosegi - Japanese Puzzle Box $40.95 Hollow Cube, aka Void Cube (Black) - Puzzle Cube $9.95 Rose - Secret Box $31.95 For More Results - Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 459 matching items Narrow down: By Type: Accessories (8) Accessories | Stands & Displays (5) Brain Teasers (10) Brain Teasers | Advanced (21) Brain Teasers | Assembly Puzzles | Advanced (2) Brain Teasers | Assembly Puzzles | Burr Puzzles (6) Brain Teasers | Assembly Puzzles | Extreme (1)   See More Types... 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Interlocking: This means that adjacent pieces are connecting such that if you move one piece horizontally you move all, preserving the connection.