Complete the borders ...

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Complete the borders ...

Postby r.e.s. » Sat Jul 29, 2006 10:15 pm

Complete the borders to make this a jigsaw sudoku solution ...

Image

Is the completion unique if 180-degree rotational symmetry is not required?
r.e.s.
 
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Postby Smythe Dakota » Sun Jul 30, 2006 3:02 am

Is wrap-around allowed (toroidal, cylindrical, Moebius strippial, etc)?

Bill Smythe
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Postby r.e.s. » Sun Jul 30, 2006 3:20 am

Smythe Dakota wrote:Is wrap-around allowed (toroidal, cylindrical, Moebius strippial, etc)

No, it's supposed to be "standard" jigsaw sudoku. That solid black line around the 9x9 is part of the given borders.
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Re: Complete the borders ...

Postby udosuk » Sun Jul 30, 2006 8:27 am

r.e.s. wrote:Is the completion unique if 180-degree rotational symmetry is not required?

Even if symmetry is required, there are at least 2 solutions...

Solution 1

Solution 2

Don't know which one will produce a harder puzzle though...
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