![]() ![]() You can read more on this topic in Erik and Martin Demaine's 2007 paper ![]() The individual pieces can be easily arranged in many different ways that partially satisfy the rule - but overall there is usually only one total arrangement (or a relatively small number among all possible arrangements) that will completely meet the goal.įinding a solution within a huge range of possibilities can be very hard, and this class is often attacked using computers - but beware, the class of edge-matching puzzles is ![]() You might see some puzzles in this section that remind you of jigsaw puzzles - but the key difference here is that the edge features are compatible with several other potential mates and there are usually several other pieces that match any given piece. Success is usually determined by careful inspection, checking to see that the given rule has been everywhere satisfied. Unlike with Assembly puzzles, laying the pieces out or into a tray, or stacking them together to form a particular shape, is not the primary focus, though it might contribute to the difficulty - it is the pattern rule which provides the chief challenge. Sometimes, as in the case of matchstick puzzles or the "Eight Queens" puzzle, the individual pieces are indistinguishable, but their arrangement in a particular pattern is paramount. edges or corners) match (or complement, or dismatch) those at corresponding points on abutting pieces" or "the heights (or numeric values) of aligned pieces total a specific constant" or "defined sets of faces have all distinct (or equal) features." The goal is to arrange the pieces in some simple configuration such that their features respect a given rule (or rules) - form a pattern - occasionally but not typically enforced by mechanical means.įor example, "piece features at specific points (e.g. They consist of a number of similar pieces or movable parts, each of which has some particular identifying trait or traits whose values are chosen from a small well-defined set - sometimes shape, but more often a color or pattern, along the edges or on the face(s) of the piece. Pattern puzzles are a sub-class of Put-Together puzzles. ![]()
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