{"product_id":"one-sided-pentominoes-puzzle-18-piece-87548","title":"One-Sided Pentominoes Puzzle | 18 Piece Mathematical Packing Puzzle | Geometry Brain Teaser | STEM Educational Puzzle","description":"\u003cp\u003eChallenge yourself with the fascinating world of pentominoes!\u003c\/p\u003e\n\u003cp\u003eThis One-Sided Pentominoes Puzzle contains all 18 one-sided pentomino pieces neatly stored inside a tray. Your objective is simple: arrange the pieces to fill the puzzle area and explore the countless geometric patterns that can be created along the way.\u003c\/p\u003e\n\u003cp\u003eWhile traditional pentomino sets contain 12 unique pieces, one-sided pentominoes treat mirror-image shapes as distinct pieces, expanding the collection to 18 unique forms and creating entirely new puzzle possibilities. The result is a richer and more challenging puzzle experience for both beginners and experienced solvers.\u003c\/p\u003e\n\u003cp\u003eWith hundreds of possible arrangements and challenges to discover, this puzzle provides hours of engaging, hands-on problem solving.\u003c\/p\u003e\n\u003cp\u003eAvailable Sizes\u003c\/p\u003e\n\u003cp\u003eLarge\u003cbr\u003e\n250 x 225 mm\u003c\/p\u003e\n\u003cp\u003eXLarge\u003cbr\u003e\n330 x 295 mm\u003cbr\u003e\nThe Mathematics Behind Pentominoes\u003c\/p\u003e\n\u003cp\u003ePentominoes were popularized by mathematician Solomon W. Golomb in the 1950s and have become one of the most famous classes of mathematical puzzles in the world. Each pentomino is formed by connecting five equal squares edge-to-edge.\u003c\/p\u003e\n\u003cp\u003ePentomino puzzles have been widely used in recreational mathematics, computer science, and education to teach spatial reasoning, geometry, logic, and problem-solving techniques. They remain a favorite among teachers, puzzle enthusiasts, and STEM educators because they offer an elegant combination of simplicity and depth.\u003c\/p\u003e\n\u003cp\u003eThe one-sided pentomino set expands on the classic collection by treating reflected shapes as separate pieces, increasing both the number of pieces and the complexity of potential solutions.\u003c\/p\u003e\n\u003cp\u003eGreat For\u003cbr\u003e\nPuzzle enthusiasts\u003cbr\u003e\nMath lovers\u003cbr\u003e\nSTEM education\u003cbr\u003e\nClassroom activities\u003cbr\u003e\nTeachers and students\u003cbr\u003e\nSpatial reasoning practice\u003cbr\u003e\nGeometry exploration\u003cbr\u003e\nFamily game nights\u003cbr\u003e\nGift giving\u003cbr\u003e\nFeatures\u003cbr\u003e\nComplete 18-piece one-sided pentomino set\u003cbr\u003e\nStorage tray included\u003cbr\u003e\nIntermediate to advanced difficulty\u003cbr\u003e\nEncourages logical thinking and problem solving\u003cbr\u003e\nExcellent educational resource\u003cbr\u003e\nGreat for repeated challenges\u003c\/p\u003e\n\u003cp\u003eMaterials\u003cbr\u003e\nCrafted from durable PLA plastic, a biodegradable and eco-friendly material designed for years of puzzle-solving enjoyment.\u003c\/p\u003e\n\u003cp\u003eWhat's Included\u003cbr\u003e\n18 one-sided pentomino pieces\u003cbr\u003e\nStorage tray\u003c\/p\u003e\n\u003cp\u003eDifficulty: Intermediate–Advanced\u003c\/p\u003e\n\u003cp\u003eAbout ItemsByCL\u003c\/p\u003e\n\u003cp\u003eItemsByCL was built around one simple idea: every product should spark curiosity or put a smile on someone's face.\u003c\/p\u003e\n\u003cp\u003eOur puzzles combine hands-on learning with engaging challenges that appeal to students, teachers, hobbyists, and puzzle collectors alike. Many of our mathematical puzzle designs have been inspired by concepts used in classrooms around the world, helping transform abstract ideas into enjoyable, tactile experiences.\u003c\/p\u003e\n\u003cp\u003eWhether you're looking for a brain teaser, educational activity, or unique gift, we hope our products inspire creativity, curiosity, and a love of problem solving.\u003c\/p\u003e","brand":"ItemsByCL","offers":[{"title":"XLarge - 330x295mm \/ Red","offer_id":51413091320086,"sku":null,"price":66.75,"currency_code":"CAD","in_stock":true},{"title":"XLarge - 330x295mm \/ Blue","offer_id":51413091352854,"sku":null,"price":66.75,"currency_code":"CAD","in_stock":true},{"title":"XLarge - 330x295mm \/ Green","offer_id":51413091385622,"sku":null,"price":66.75,"currency_code":"CAD","in_stock":true},{"title":"XLarge - 330x295mm \/ Yellow","offer_id":51413091418390,"sku":null,"price":66.75,"currency_code":"CAD","in_stock":true},{"title":"Large - 250x225mm \/ Red","offer_id":51413091451158,"sku":null,"price":44.25,"currency_code":"CAD","in_stock":true},{"title":"Large - 250x225mm \/ Blue","offer_id":51413091483926,"sku":null,"price":44.25,"currency_code":"CAD","in_stock":true},{"title":"Large - 250x225mm \/ Green","offer_id":51413091516694,"sku":null,"price":44.25,"currency_code":"CAD","in_stock":true},{"title":"Large - 250x225mm \/ Yellow","offer_id":51413091549462,"sku":null,"price":44.25,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0931\/6486\/3766\/files\/il_fullxfull.8179129053_bqfe.jpg?v=1781338416","url":"https:\/\/itemsbycl.com\/products\/one-sided-pentominoes-puzzle-18-piece-87548","provider":"ItemsByCL","version":"1.0","type":"link"}