h a l f b a k e r yThe word "How?" springs to mind at this point.
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The edge pieces are a staple of the standard quadrilateral jigsaw. No matter how big or difficult a jigsaw may be, it will always have pieces that interlock on just three sides. This gives the puzzler a good starting point. But of course, there are those who may not want this advantage and would prefer
the challenge of having to put real effort in to get started.
These jigsaws would have intermittent edge pieces designed to fit in the middle of the puzzle. It sounds crazy, I know, but please bear with me. These pieces would come in pairs with the flat edge of each matching up. Adding a limited number of these would make figuring out what is or isn't an actual edge piece that much more difficult, thus adding to the challenge, leaving you with one happy jigsawlogist.
FarmerJohn's Wraparound Approach
Endless_20Puzzle
Cylindrical, so it still has top and bottom edges. [DrCurry, Jul 19 2006]
Edgeless Jigsaw Puzzle
http://www.unclesga...01c12f1588ac4936a85
...with five extra pieces. One of a series. [DrCurry, Jul 19 2006]
Wiki has a good article on the subject
http://en.wikipedia.../wiki/Jigsaw_puzzle
[DrCurry, Jul 19 2006]
The Worlds Hardest Jigsaw
http://www.britsupe..._Cornflakes_1kg.jpg
It's All Beak?!?! [MikeOliver, Jul 19 2006]
here are other than square jigsaw puzzles
http://www.bitsandp...23&page=2&viewAll=1
Uses your idea in reverse, no flat edges.. [xandram, Jul 19 2006]
Waddington's Jig-map
http://www.puzzlehistory.com/jigmap.htm
I loved these when I was little - not a straight line in sight. [wagster, Jul 20 2006]
[link]
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does the edge have to be straight anyway. |
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Not necessarily but I think it makes it look more complete [po]. |
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Or non euclidian ones? Or spherical ones - like a global jigsaw of the world (though you would still be able to sort the pieces into general sea and not-sea piles - and, based on the presence of polar bears/penguins, arctic and antarctic ones too) |
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....and then you use a Jackson Pollock
painting as your subject matter, and, and,
and, and, if it was a farmyard scene
instead, would it be a Pigsaw? |
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It's best to get all these off your chest in
one go. |
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Croissant for the jigsaw maker + |
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it would still be relatively easy, after having sifted out the edge pieces, to match up the pairs that belong somehwere in the middle. |
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How about making *all* the edges straight? (Of course, it wouldn't be a jigsaw puzzle at that point, but some kind of tile puzzle.) |
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Another approach to this problem, producing edgeless (i.e., wraparound) jigsaw puzzles, is Baked, although I can't immediately find a link for you. |
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Alternatively, take a regular Jigsaw, pick out all the edge pieces, and throw them away.
Now the second edge level becomes the edge, and the difficulty increases.
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The interior edges could help emphasize lines within the picture. In fact, the two meeting edges need not be the same color. |
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Or make all of the pieces triangles. Or circles! |
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Interlock on 2 sides only and all pieces resemble corners. |
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