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  2. Burr puzzle - Wikipedia

    en.wikipedia.org/wiki/Burr_puzzle

    An assembled six-piece burr. The six-piece burr, also called "Puzzle Knot" or "Chinese Cross", is the most well-known and presumably the oldest of the burr puzzles. This is actually a family of puzzles, all sharing the same finished shape and basic shape of the pieces. The earliest US patent for a puzzle of this kind dates back to 1917. [8]

  3. Pentangle (puzzle supplier) - Wikipedia

    en.wikipedia.org/wiki/Pentangle_(puzzle_supplier)

    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 ...

  4. Combination puzzle - Wikipedia

    en.wikipedia.org/wiki/Combination_puzzle

    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

  5. Mechanical puzzle - Wikipedia

    en.wikipedia.org/wiki/Mechanical_puzzle

    A pyramid puzzle consists of two or more component pieces which fit together to create a pyramid. [1] [2] Two-piece pyramid puzzles cannot form a regular pyramid and can only form a 4 faced tetrahedron pyramid. The solution involves facing the square faces to each other and twisting one upright to complete the four faced tetrahedronic pyramid. [3]

  6. Altekruse Puzzle - Wikipedia

    en.wikipedia.org/wiki/Altekruse_Puzzle

    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 ...

  7. Soma cube - Wikipedia

    en.wikipedia.org/wiki/Soma_cube

    Similar to Soma cube is the 3D pentomino puzzle, which can fill boxes of 2×3×10, 2×5×6 and 3×4×5 units. The Bedlam cube is a 4×4×4 sided cube puzzle consisting of twelve pentacubes and one tetracube. The Diabolical cube is a puzzle of six polycubes that can be assembled together to form a single 3×3×3 cube.

  8. File:Six-Piece Burr - Nut Puzzle.svg - Wikipedia

    en.wikipedia.org/wiki/File:Six-Piece_Burr_-_Nut...

    English: Six-Piece Burr - Nut Puzzle. Date: 31 January 2013, 20:44:38: Source: Own work: Author: Meronim: ... but not in any way that suggests the licensor endorses ...

  9. Eternity II puzzle - Wikipedia

    en.wikipedia.org/wiki/Eternity_II_Puzzle

    Clue Puzzle 1 is a 36-piece square (6 × 6) puzzle and Clue Puzzle 2 is a 72-piece rectangular (12 × 6) puzzle. Two additional clue puzzles of the same dimensions were made available in 2008: the 36-piece Clue Puzzle 3 and the 72-piece Clue Puzzle 4. The rule book states that the puzzle can be solved without using the hints. [3]

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