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Comments and Results for 'Killer Sudoku-8 123'

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StateTypeTitleSizePlayedAvg timeRating (#users)YoursYour bestPublishedExpires
UnplayedKillerKiller Sudoku-8 1238x860213:38Easy (177)Was free until 19th Sep 20205th SepExpired
Show full chart rankings for Killer Sudoku-8 123
Your puzzle statistics First solution time distribution Overall puzzle statistics
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Slowest 10% not shown
0:00
22:10

Solution time without 'show wrong'
Slowest 10% not shown
0:00
20:28

Unaided first solution time
Slowest 10% not shown
0:00
17:42
Completed by247 users
Best time without any aid2:41 by winterer
Average solve time with no or minor aid11:08
Average difficulty rating - all players1.9/10.0
Average difficulty rating - no aid2.1/10.0
Average difficulty rating - minor aid3.6/10.0
Average difficulty rating - major aid1.2/10.0
Average difficulty rating - show wrong or
multiple sessions
1.9/10.0
2 comments (Add new comment)
Posted 5th Sep 2020 at 00:42
Last edited by SlowBurn 5th Sep 2020 at 00:43
SlowBurn Completion time: 9:59 Used 'check puzzle' when incorrect
It might be possible that there is an alternative solution. On the two right most columns, 7 & 8 at the top row can be either 7 & 8 or 8 & 7 (with associated changes). I know it is more likely that I've missed a constrain somewhere.
Posted 5th Sep 2020 at 05:33
SCBilly Rated puzzle: Easy Completion time: 17:08 Used 'check puzzle' when incorrect
The group of 5 cells in the upper right corner contains a "1" (and a "5") in the third row from the top. Thus, the rightmost cell in the 2nd row cannot contain a "1" and must contain a "2". Because the top two cells in the rightmost column must add up to "9", the upper-right cell must be a "7" and not an "8".

So, the top must be "8 7" and the bottom must be "7 8".

(I was confused for a while by the same thing.)

So, the solution is unique.

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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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