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Comments and Results for 'Non-consecutive Sudoku 9'

State	Type	Title	Size	Played	Avg time	Rating (#users)	Yours	Your best
		Non-consecutive Sudoku 9	9x9	88	13:55	Mild (58)	-	-
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4 comments (Add new comment)

Posted 4th May 2013 at 17:28

martint Daily subscriber Rated puzzle: Easy Best completion time: 8:31 Time on first attempt: 43:12 Used 'show wrong moves'

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I got very stuck half way through till I noticed that the entire puzzle seemed to be the triples (369), (572), and (814) repeated.over and over. I spent a couple of minutes wondering if I could prove logically that the rest of the puzzle had to follow. I was not able to - though I will think more of it later.

However, I assumed that it was so repeated, and finished it very quickly.

Posted 4th Jun 2013 at 18:58

joshuazucker Rated puzzle: Moderate Completion time: 7:12

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I don't know if I can prove that at the beginning, either, but in the middle I could look at the 3s and 4s to get everything sorted.

Posted 7th Jun 2013 at 21:23

joshuazucker Rated puzzle: Moderate Completion time: 7:12

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Still working on that proof -- I know it's not true of nonconsec puzzles in general, so I don't know what to uncover in the givens to figure out whether the solution will have that type of pattern to it. Almost all (all?) of the puzzles in this set seem to have that pattern, which is a bit disappointing.

Posted 9th Jun 2013 at 00:04

martint Daily subscriber Rated puzzle: Easy Best completion time: 8:31 Time on first attempt: 43:12 Used 'show wrong moves'

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If enough rows fit the pattern, I can prove that the rest do, in that part of the puzzle at least. However, sometimes such a pattern only covers a small part of it, so it is possible to assume the pattern when it is not there.

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