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Absolute symmetry
tobiwan
Kwon-Tom Obsessive
Puzzles: 3862
Best Total: 17m 44s
Posted - 2007.04.13 21:52:11
It's interesting playing the puzzles that have line of symmetry.  For instance, Nis' Tree of life.



At this point the next step was forced by the puzzle having a global line of symmetry.  Legitimate solving technique or cop-out?
Para
Kwon-Tom Obsessive
Puzzles: 1911
Best Total: 19m 28s
Posted - 2007.04.14 01:27:07
Using absolute symmetry is just like using a uniqueness test. If the clues have absolute symmetry, the solution also has to otherwise there would be multiple solutions.
procrastinator
Kwon-Tom Obsessive
Puzzles: 1083
Best Total: 12m 56s
Posted - 2007.04.14 05:16:57
Quote:
Originally Posted by tobiwan
At this point the next step was forced by the puzzle having a global line of symmetry.

My _first_ move is to put in the only possible line on the 1, followed by the other line on the two, and then it's solved.

Quote:
Originally Posted by tobiwan
Legitimate solving technique or cop-out?

Legitimate solving technique for a poorly-designed puzzle.
tobiwan
Kwon-Tom Obsessive
Puzzles: 3862
Best Total: 17m 44s
Posted - 2007.04.14 09:54:14
I'm not always quick to spot things like that.  So I started working from the patterns I could see and then I realised the symmetry thing..

Perhaps I shouldn't have revealed my flawed techniques quite so readily.

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