Consecutive Sudoku

For fans of Killer Sudoku, Samurai Sudoku and other variants

Consecutive Sudoku

Postby mith » Fri Oct 23, 2020 4:57 pm

Code: Select all
+-------+-------+-------+
| 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...............8
The following pairs of cells contain consecutive digits: r2c34, r9c34, r67c8, r67c9


Hidden Text: Show
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
Four by Four.png
Four by Four.png (23.77 KiB) Viewed 53 times
Last edited by mith on Fri Oct 23, 2020 5:11 pm, edited 1 time in total.
mith
 
Posts: 336
Joined: 14 July 2020

Re: Consecutive Sudoku

Postby mith » Fri Oct 23, 2020 4:58 pm

(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: 336
Joined: 14 July 2020

Re: Consecutive Sudoku

Postby creint » Fri Oct 23, 2020 10:08 pm

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

Gives multiple solutions:
Hidden Text: Show
Code: Select all
4     68    17    13    5     36    2     789   179
567   5678  12    12    9     46    48    3     57
1235  135   9     8     124   7     6     45    15
123   134   5     6     1348  9     7     48    24
179   179   12347 1234  18    1234  1348  56    56
236   346   8     7     1234  5     9     12    234
137   147   6     9     1347  8     5     12    234
8     2     147   5     167   13    134   679   679
59    59    13    24    67    123   14    67    8
creint
 
Posts: 222
Joined: 20 January 2018

Re: Consecutive Sudoku

Postby mith » Sat Oct 24, 2020 12:14 am

Huh, you're right, I must have had some other constraint when I was playing with that. Never mind! :)
mith
 
Posts: 336
Joined: 14 July 2020


Return to Sudoku variants