Sudoku in error

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Sudoku in error

Postby Hajime » Sun May 31, 2020 1:26 pm

"Sudoku in error" is made and published by Helena & Johan Jager more than a decade ago.
But I did not find this puzzle on this forum and he is really nice.

sie.jpg
sie.jpg (31.27 KiB) Viewed 105 times


....98.2....2.7841.874.1...85..2..19.218.253.76..5..86...9.431.1923.5....7.68....

This Sudoku is designed wrong and is full of mistakes.
You can see in column 8 there are two 1's.
One 1 must be in error but you do not (yet) know which is in error.

Additional rules:
1. Per row, column and box there is exactly one mistake.
2. Each mistake conflicts 3 times: in a row, in a column and in a box.
3. Each mistake conflicts with other cells that are all correct.
4. Within a box a mistake will never conflict with another number on the same row or column
5. Digits 1 to 9 are all in error exactly once.
6. Digits 1 to 9 are present nine times each.

The challenge: solve the Sudoku in error.
Errors should not be corrected ! (You have to make extra errors yourself)
There is only 1 solution.

More tips:
sie2.jpg
sie2.jpg (34.31 KiB) Viewed 105 times
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Hajime
 
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Re: Sudoku in error

Postby creint » Sun May 31, 2020 2:07 pm

I already had solved it with a solver when it was released.
Solution:
Hidden Text: Show
645798723839267841287431365856729419921842537764153986568914312192345674375682159
creint
 
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Re: Sudoku in error

Postby Hajime » Sun May 31, 2020 3:53 pm

Dear creint, the puzzle was/is human solvable...
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Hajime
 
Posts: 193
Joined: 20 April 2018
Location: Netherlands


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