{"title":"Frans de Vreugd","description":"\u003cp\u003eFrans de Vreugd is a Dutch designer who works almost exclusively in interlocking puzzles, and specifically in the hardest corner of that family: the board burr. He is one of the leading voices in \u003cem\u003eCubism For Fun\u003c\/em\u003e, the mechanical puzzle world's long-running journal, where he has published the research behind much of his own work.\u003c\/p\u003e\u003cp\u003eHis approach is unusual. Rather than designing by hand and testing by feel, de Vreugd uses computer search to find the hardest configuration a given puzzle form can take, then builds that. The result is a body of work where the difficulty is not an accident of craftsmanship but the actual design target.\u003c\/p\u003e\u003ch2\u003eThe board burr papers\u003c\/h2\u003e\u003cp\u003eThree of his \u003cem\u003eCubism For Fun\u003c\/em\u003e articles are still referenced by designers today: \u003cstrong\u003eSome Notes on Dic's Dozen\u003c\/strong\u003e (2000), \u003cstrong\u003eExtreme Boxed Burrs\u003c\/strong\u003e (2001) and \u003cstrong\u003eCracking the Six-Board Burr\u003c\/strong\u003e (2003). The last of those is the groundwork for the puzzle we carry.\u003c\/p\u003e\u003ch2\u003eHis designs\u003c\/h2\u003e\u003cp\u003eTorture Burr, Bent Board Burr #6, Boxed Six Board Burr, Japanese Wood Joint Burr and Japanese Joint Burr are the designs he is best known for. They share a signature: very few pieces, a shape that looks manageable, and a move count that is not.\u003c\/p\u003e\u003ch2\u003eWhat we carry\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eExtreme Torture\u003c\/strong\u003e is a six-piece board burr from 2002 that takes \u003cstrong\u003e69 moves\u003c\/strong\u003e to take apart, at burr level 28.21.9.8.3. It was built, deliberately, to be the hardest six-piece board burr that could be constructed. Expert difficulty, four hours and up, and it ships disassembled.\u003c\/p\u003e\u003cp\u003eMore of his designs are in production and will be added here.\u003c\/p\u003e\u003ch2\u003eBest for\u003c\/h2\u003e\u003cp\u003eSolvers who have run out of hard burrs and want one that will genuinely beat them for a while. Collectors who track designers rather than shapes. Anyone who has read a level notation and wanted to know what 69 moves actually feels like in the hand.\u003c\/p\u003e\u003cp\u003eIf you are new to this family, start with the \u003ca href=\"\/ja\/collections\/burr-puzzles\"\u003eburr puzzles\u003c\/a\u003e collection and work up. The \u003ca href=\"\/ja\/blogs\/greg-puzzles-blog\/how-to-solve-the-6-piece-burr-puzzle\"\u003e6-piece burr guide\u003c\/a\u003e explains the structure these designs are built on.\u003c\/p\u003e","products":[],"url":"https:\/\/gregpuzzles.com\/ja\/collections\/frans-de-vreugd.oembed","provider":"Greg Puzzles","version":"1.0","type":"link"}