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Burr puzzles. A burr puzzle is an interlocking puzzle consisting of notched sticks, combined to make one three-dimensional, usually symmetrical unit. These puzzles are traditionally made of wood, but versions made of plastic or metal can also be found. Quality burr puzzles are usually precision-made for easy sliding and accurate fitting of the ...
Pentangle's first product was a burr puzzle, the Woodchuck puzzle, whose object was to assemble 24 wooden pieces into an octahedral shape. It sold hundreds of thousands of these. [ 1 ] Pentangle eventually made a total of 314 different burr puzzles, and from 1979 made and sold the "Chinese Cross", a compendium of 42 pieces including all the ...
A holey burr puzzle is characterised by internal holes, which usually allow for sliding movements of individual pieces or groups of pieces. The level of a holey burr puzzle specifies how many sliding movements are necessary to assemble or disassemble the puzzle. Commercial Name: Minus Cube Piece configuration: 2×2×2-1 sliding cubes
The Universal Book of Mathematics provides the following information about Altekruse puzzle: [2] [3] A symmetrical 12-piece burr puzzle for which a patent was granted to William Altekruse in 1890. The Altekruse family is of Austrian-German origin and, curiously, the name means "old cross" in German, which has led some authors to incorrectly ...
A solution to Hoffman's packing puzzle with 4×5×6 cuboids (1), exploded to show each layer (2) The image shows an example of Hoffman's packing puzzle . The aim is to pack 27 cuboids with side lengths A , B , C {\displaystyle A,B,C} into a box of side length A + B + C {\displaystyle A+B+C} , subject to two constraints:
Simply Jigsaw. Piece together a new jigsaw puzzle every day, complete with themes that follow the seasons and a super useful edges-only tool. By Masque Publishing
[1] [2] One of the earliest published descriptions of the puzzle appeared in 1826 in the 'Sequel to the Endless Amusement'. [3] Many other references of the cross puzzle can be found in amusement, puzzle and magicians books throughout the 19th century. [4] The T puzzle is based on the cross puzzle, but without head and has therefore only four ...
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