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Comments and Results for 'Wraparound Sudoku-6 84'

StateTypeTitleSizePlayedAvg timeRating (#users)YoursYour bestPublishedExpires
UnplayedToroidalWraparound Sudoku-6 846x610643:37Easy (311)Was free until 11th Aug 201428th JulExpired
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Slowest 10% not shown
0:00
6:11

Solution time without 'show wrong'
Slowest 10% not shown
0:00
6:11

Unaided first solution time
Slowest 10% not shown
0:00
6:12
Completed by407 users
Best time without any aid1:02 by ClareJuliette
Best time with major aid0:33 by RGedd
Average solve time with no or minor aid3:46
Average solve time with no aid3:43
Average difficulty rating - all players1.0/10.0
Average difficulty rating - no aid1.0/10.0
Average difficulty rating - minor aid2.3/10.0
Average difficulty rating - major aid1.3/10.0
Average difficulty rating - show wrong or
multiple sessions
1.1/10.0
9 comments (Add new comment)
Posted 28th Jul 2014 at 02:09
gratitude18 Completion time: 6:10
easy
Posted 28th Jul 2014 at 10:53
Gostar Rated puzzle: Easy Completion time: 4:34
Not sure of that - but the wraparound feature might be not needed to solve the puzzle.
Posted 28th Jul 2014 at 12:58
JoergWausW Daily subscriber Best completion time: 2:37 Time on first attempt: 2:55
What is the "wraparound feature"? Can I "rotate" the panel somehow?
So far I considered the Wraparound Sudokus as Jigsaw Sudokus with an added difficulty: you have to consider that there might be some sqares of a region at the other side of the panel. Like the orange one at the bottom in this one.
I didn't have to use any Jigsaw strategy here - plain Sudoku strategies were enough.
Posted 29th Jul 2014 at 10:11
andrewc Rated puzzle: Easy Completion time: 2:49
Very Easy
Posted 30th Jul 2014 at 21:58
Elisabeth Daily subscriber Rated puzzle: Easy Best completion time: 3:05 Time on first attempt: 4:10
I solved this too without using the 'wraparound' aspect.In the instructions the nearest is for Toroidals, basically the same, only simpler with fewer regions separated, help being given by the colouring as you state, JoergWausW. I wonder where the term 'wraparound' originated; was it your idea, Gareth?
Posted 3rd Aug 2014 at 13:14
JoergWausW Daily subscriber Best completion time: 2:37 Time on first attempt: 2:55
This might become an interesting discussion... "Toroidal" is a maths-term describing the shape of a donut. If you take a rectangular piece of paper and try to both connect the top edge with the bottom one as well as the right edge with the left one, you'll end up with a toroid.
There is a puzzle of three houses, each of them is supposed to be connected with each of three different supply buildings (Imagine gas, water, electricity), but the lines are not allowed to cross each other. If the earth was a donut, it would be possible to solve this problem.
What does it have to do with these puzzles? I can only guess: the original toroidal puzzles had regions connecting cells that wouldn't be able to be connected in a regular jigsaw puzzle. But there are only limited possibilities with 81 cells. So "wraparound" might have been the less requiring term to go with.

Oh, and "Wraparound" makes me think of wrapping an apple. But if you try to wrap an apple with a big printout of a Wraparound Sudoku, you won't succeed if you try to end up with all connected cells next to each other.- The Problem regions are the "poles", top and bottom. Only soulution: Take a hot dog instead, wrap the paper around, and then connect the ends. Maybe we should call that a dog-nut...

In the end: Wraparound/Toroidal - for the solver - is a Jigsaw where you have to keep in mind that there are connected cells at the other end. That makes it harder to solve. You don't need more skills, but you have to be more careful using them.

Or is there a solving skill that is unique for a Wraparound vs. Jigsaw Sudoku? Please tell me.

Posted 4th Aug 2014 at 09:32
Elisabeth Daily subscriber Rated puzzle: Easy Best completion time: 3:05 Time on first attempt: 4:10
I used to know all about this, JoergWausW, a long time ago, but I called it a torus. Now that you explain I see the connection since joining up the open-ended regions should, I think, create this toroid. Topology was never my strong point, not getting much beyond the idea of rubber-sheet geometry and luckily I never had to teach more than the basic ideas!!
The original toroidal puzzle was always the same, with 3 closed regions stepping up and all the rest fitting round them. Gareth has extended the idea, presumably, to create the wraparounds with more variety.
I like your dog-nut! It describes it perfectly:)
I don't have any particular method for solving, as with all jigsaw types I am pretty systematic, putting in all possibilities and seeing what I've got. Not the quickest method, that doesn't worry me, but is usually reliable, provided I remember the odd bits and do my original groundwork accurately!!
Posted 4th Aug 2014 at 11:57
JoergWausW Daily subscriber Best completion time: 2:37 Time on first attempt: 2:55
for Jigsaw Sudokus I use one pattern last, that doesn't apply for the others: Scan rows from up to down for: what colors are possible for 1? Then I get groups of colors that have to each contain a one. This way some colors must have the 1 in only one row, and I can exclude the 1 for the others. Its kind of a color-based X-wing system. Then I do the same for the other numbers and for the columns. Not very fast either...
Posted 7th Mar 2015 at 14:39
cuvansu Completion time: 3:17
Good
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Key

  • A yellow/light blue highlight in the time distribution charts highlights your time, where relevant.
  • Rating scores out of 10.0 show the average difficulty rating chosen by users, where 1.0 is "Easy" and 10.0 is "Hard".
  • If a puzzle is opened more than once, including by loading from a saved position, then this is potentially a significant aid so it is listed as being completed with 'multiple sessions' for the purpose of the best time/average rating displays above.
  • Minor aid is defined as no more than one use of 'Check solution' when incomplete and/or no more than one use of 'Check solution' when wrong; and/or using highlighting aids (show repeated digits, show broken inequalities and show valid/invalid placements [slitherlink] only). Major aid is any and all other use of the solving aids except for 'show wrong'.

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