My Cart | Sign In Contact | Returns | Shipping | Privacy   Questions? Live Chat Or, call: 1-856-461-8883 Home | My Cart Search All Items:  You have 0 item(s) in your cart worth $0.00  Jigsaw Puzzles $Money Puzzles Brain Teasers   - Assembly   - Classics   - Disentanglements   - Don't Puzzles   - Entrapment Puzzles   - Key Chains   - Mazes   - Money Puzzles   - Pattern Matching   - Peg Puzzles   - Pocket Sized   - Puzzle Boxes   - Puzzle Cubes   - Puzzle Locks   - Rings   - Rubiks   - Sequential   - Sliding   - Sudoku   - Tangle   - Travel   - Volumetric   - More...   Other:   - Books   - Cool Stuff   - Games   - Hoberman   - Puzzle Boxes   - Puzzle Cubes   - Puzzle Rings   - Rubik's Cubes   More:   - Eco-Friendly   - Made in USA   - New Items   - Sale Items   - Top Sellers     - Accessories   - Gift Sets   - Great Gifts   - Solutions     Volume Orders & Corporate Sales   Institutional Sales What sets us apart from others? Free Standard Shipping* on all orders $60.00 or more! read more Same Day Shipping on orders placed before 4pm EST, M-F! read more Customer Service in just a moment's notice, 9am to 6pm EST M-F! Email, Phone, or Live Chat, read more Brain Teasers > Advanced > Assembly > Beginner > Classics > Disentanglements > Don't Puzzles > Entrapment > Extreme > Intermediate > Keychains > Mazes > Money Puzzles > More... > Pattern Matching > Peg Puzzles > Pocket Sized > Puzzle Boxes > Puzzle Cubes > Puzzle Locks > Rings > Rubik's > Sequential > Show All > Sliding > Sudoku > Tangle > Travel > Volumetric  > Show All 1-19 of 19 matching items. For More Results - Page: 1    Sort: Bestselling!NewestAlphabetical (A-Z)Alphabetical (Z-A)Price (Low to High)Price (High to Low) Include Out-Of-Stocks Brass Treasure Chest - Brain Teaser $24.95 Don't Break the Bottle (Wood) - Brain Teaser $23.95 Don't Break the Bottle (Corkscrew) - Brain Teaser $24.95 36 Cube - Brain Teaser $24.95 Perplexus - 23 Foot Track In A Sphere - Maze Game $24.95 Rubik's 4 x 4 Cube $21.95 Perplexus Rookie - 70 Barriers! Track In A Sphere - Maze Puzzle $22.95 Galaxy Challenge - Interlocking Puzzle $22.95 Classic (Unisex) - 4 Band - Sterling Silver Puzzle Ring $22.00 Iball3 - Brain Teaser & Game $24.65 Iso Crate - Brain Teaser $22.95 Kites & Darts - 108pc Tessellation Magnet Pack 108 pieces $22.95 Puzzle Perch for Metal Disentanglement Puzzles $23.95 The Path - Brain Teaser $24.95 Schloss Und Holz (Lock & Timber) - Brain TeaserNEW $22.95 Supercube, 3x3x5 - Puzzle Cube $24.95 Showcase X - Unisex 4 Band Sterling Silver Puzzle Ring $23.95 Vogue Weave - Ladies 4 Band Sterling Silver Puzzle Ring $22.95 Celtic (Unisex) - 4 Band - Sterling Silver Puzzle Ring $24.00 For More Results - Page: 1 19 matching items Narrow down: By Type: Accessories (1) Accessories | Stands & Displays (1) Brain Teasers (1) Brain Teasers | Advanced (1) Brain Teasers | Assembly Puzzles | Interlocking (1) Brain Teasers | Assembly Puzzles | Stackable (1) Brain Teasers | Assembly Puzzles | Tessellations (1)   See More Types... Brain Teasers | Disentanglement | More... (1) Brain Teasers | Disentanglement | Tavern Puzzles | Accessories (1) Brain Teasers | Don't Puzzles (2) Brain Teasers | Entrapment Puzzles (3) Brain Teasers | Extreme (1) Brain Teasers | Mazes (2) Brain Teasers | Money Puzzles (1)   See The Rest... Brain Teasers | More... (4) Brain Teasers | Puzzle Cubes (2) Brain Teasers | Puzzle Cubes | Supercubes (1) Brain Teasers | Puzzle Locks (1) Brain Teasers | Puzzle Rings | 4 Band Rings (4) Brain Teasers | Puzzle Rings | Sterling Silver Rings (4) Brain Teasers | Rubik's (1) Brain Teasers | Show All (1) Brain Teasers | Travel Puzzles (2) Cool Stuff (3) Games | Strategy (1) Great Gifts (3) By Difficulty:     Beginner (1)     Intermediate (11)     Advanced (4)     Extreme (1) By Ages:     6 yrs & up (2)     7 yrs & up (1)     8 yrs & up (2) By Price: $21 to $25 X Get SERIOUS... SeriousChai.com   - Chai Tea, Big Train, Ghirardelli SeriousFlags.com   - Garden Flags, Toland Flags, Decorative Flags SeriousCards.com   - Playing Cards, Chess, & Games SeriousPlush.com   - Plush Toys, Stuffed Animals SeriousPuzzles.com   - Jigsaw Puzzles, Brain Teasers, Money Puzzles   Headquarters: SeriousShops.com 1812 Underwood Blvd. STE 4 Delran, NJ 08075 US United States Copyright © 2001 - , all rights reserved SeriousPuzzles.com®, an AJM & Co., Inc. company SeriousShops.com, a network of online stores. Customer Service Contact Us Live Chat Returns Shipping Guarantee Bulk Orders & B2B Volume Orders Corporate Sales Institutional Sales Policy Stuff Privacy Policy Conditions of Use More Missing pieces? Solutions A really big puzzle! Account My Cart My Account My Orders Sign In Register About Us Why & How Who's Serious? Recognition Read our blog! SeriousShops.com Site Map Experience Tell us what you think Report a problem

Interlocking: This means that adjacent pieces are connecting such that if you move one piece horizontally you move all, preserving the connection.