## Consecutive Sudoku

For fans of Killer Sudoku, Samurai Sudoku and other variants

### Consecutive Sudoku

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`+-------+-------+-------+| 4 . . | . . . | . . . || . . . | . . . | . 3 . || . . 9 | 8 . 7 | 6 . . |+-------+-------+-------+| . . 5 | 6 . 9 | 7 . . || . . . | . 1 . | . . . || . . 8 | 7 . 5 | 9 . . |+-------+-------+-------+| . . 6 | 9 . 8 | 5 . . || . 2 . | . . . | . . . || . . . | . . . | . . 8 |+-------+-------+-------+4...............3...98.76....56.97......1......87.59....69.85...2...............8The following pairs of cells contain consecutive digits: r2c34, r9c34, r67c8, r67c9`

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I'm pretty sure this will never work without the additional constraints - you just can't get to a unique solution without having a second digit in the 1-4 group.
Attachments
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Last edited by mith on Fri Oct 23, 2020 5:11 pm, edited 1 time in total.
mith

Posts: 524
Joined: 14 July 2020

### Re: Consecutive Sudoku

(For a harder puzzle, +5r1c5 and -1r5c5. Not sure how much harder.)
Last edited by mith on Sat Oct 24, 2020 12:14 am, edited 1 time in total.
mith

Posts: 524
Joined: 14 July 2020

### Re: Consecutive Sudoku

mith wrote:(For a harder puzzle, +5r1c5 and -1r5c5. Not sure how much harder.)

Gives multiple solutions:
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Code: Select all
`4     68    17    13    5     36    2     789   179567   5678  12    12    9     46    48    3     571235  135   9     8     124   7     6     45    15123   134   5     6     1348  9     7     48    24179   179   12347 1234  18    1234  1348  56    56236   346   8     7     1234  5     9     12    234137   147   6     9     1347  8     5     12    2348     2     147   5     167   13    134   679   67959    59    13    24    67    123   14    67    8`
creint

Posts: 305
Joined: 20 January 2018

### Re: Consecutive Sudoku

Huh, you're right, I must have had some other constraint when I was playing with that. Never mind!
mith

Posts: 524
Joined: 14 July 2020