{"product_id":"multi-grain-burr","title":"Multi-Grain Burr | 4-Piece Interlocking Burr","description":"\u003ch2\u003eMulti-Grain Burr - Quick Summary\u003c\/h2\u003e\n\u003cp\u003eThe Multi-Grain Burr is a four-piece assembly puzzle designed by \u003ca href=\"\/ja\/collections\/stewart-coffin\"\u003eStewart Coffin\u003c\/a\u003e. Four notched pieces lock form a very peculiar shape. The next level of the \u003ca href=\"https:\/\/gregpuzzles.com\/products\/three-piece-block-puzzle\"\u003eThree Piece Block puzzle.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e People with highly developed spatial perception.\u003c\/p\u003e\n\u003ch2\u003eAbout the Designer\u003c\/h2\u003e\n\u003cp\u003eStewart Coffin is one of the most respected names in mechanical puzzle design. His work is known for geometric elegance rather than brute complexity - puzzles that look like they should come apart easily and then decline to.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eHow hard is the Multi-Grain Burr?\u003c\/h3\u003e\n\u003cp\u003eHard. Most solvers spend one to four hours on it. If you have solved a standard six-piece burr, expect this one to take longer despite having fewer pieces.\u003c\/p\u003e\n\u003ch3\u003eWho designed the Multi-Grain Burr?\u003c\/h3\u003e\n\u003cp\u003eStewart Coffin, a designer whose mechanical puzzles are widely collected for their geometric precision.\u003c\/p\u003e","brand":"Greg Puzzles","offers":[{"title":"Default Title","offer_id":51347709427879,"sku":null,"price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/2827\/1783\/files\/multi-grain_burr_marble.png?v=1789665707","url":"https:\/\/gregpuzzles.com\/ja\/products\/multi-grain-burr","provider":"Greg Puzzles","version":"1.0","type":"link"}