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".

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Add new comment)Last edited by SlowBurn 5th Sep 2020 at 00:439:59Used 'check puzzle' when incorrectEasyCompletion time:17:08Used 'check puzzle' when incorrectSo, 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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