Disentanglement Puzzles, String and/or Wire
A disentanglement puzzle is a type of Mechanical puzzle that involves disentangling one piece or set of pieces from another piece or set of pieces. The reverse problem of reassembling the puzzle can be as hard as—or even harder than—disentanglement. There are several different kinds of disentanglement puzzle, though a single puzzle may incorporate several of these features.
There are 2 primary types, wire
puzzles and string puzzles; or a combination of the 2 as you will find on many
of our wire puzzles. Our string puzzles
involve manipulation of a string to remove a wooden object (such as Lord of the
Ring), or simply to remove the string (such as Only One Love)
Wire Puzzles consist of two or more entangled pieces of more or less stiff wire. The pieces may or may not be closed loops. The closed pieces might be simple rings or have more complex shapes. Normally the puzzle must be solved by disentangling the two pieces without bending or cutting the wires.
Wire puzzles have a long history. Early examples were made from Horseshoes and similar material
More than 7000 wire puzzles are known. The Richard Hess has collected them in a book he privately publishes 'Compendium Of Over 7000 Wire Puzzles', first edition March 1991. Many of them are his own inventions.
Wire-and-string puzzles usually consist of one piece of string, ribbon or similar, which may form a closed loop or which may have other pieces like balls fixed to its end, one or several pieces of stiff wire and sometimes additional pieces like wooden ball through which the string is threaded.One can distinguish three subgroups of wire-and-string puzzles:
-Closed string subgroup: Here the pieces of string consist of one closed loop. Usually the string has to be disentangled from the wire.
-Unclosed loose string subgroup: Here the pieces of string are not closed, and are not attached to the
wire. In this case the ends of the string are fitted with a ball, cube or
similar which stops the string from slipping out too easily. Usually the string
has to be disentangled from the wire. Sometimes other tasks have to be
completed instead, such as shifting a ring or ball from one end of the string
to another end.
-Unclosed fixed string subgroup: Here the pieces of string are not closed, but are somewhere on its length attached to the wire. Obviously in these puzzles the task is not to disentangle the string from the wire. One possible task may be to shift a ring or ball from one end of the string to another end.