Consecutive sudoku from John Musgrave(sudoku puzzles)

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Consecutive sudoku from John Musgrave(sudoku puzzles)

Postby urhegyi » Fri Mar 17, 2023 8:00 am

Any way to input this in SiSeSuSo?
I think when I haven't made a typo:
Code: Select all
#1//B4,CS
4................................................................................
.......10.1..1.110.1..111.01....1.101...1...0...1..1.0........0......1.0...1...10
..1.......1.1.....1..............1..1.11.....1..1.....1.1.....111.11.11.000000000

John Musgrave wrote:
Code: Select all
This is my first attempt at a (I think its called) a consecutive sudoku.  Same sudoku rules apply.  Circles mean cells must be consecutive, no circle means digits CANNOT be consecutive.  Make sense?   Not interactive so you'll have to print it out and do it manually.   Would love some feedback.  Thanks.

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Re: Consecutive sudoku from John Musgrave(sudoku puzzles)

Postby Hajime » Fri Mar 17, 2023 8:47 am

urhegyi wrote:Any way to input this in SiSeSuSo?
I think when I haven't made a typo:
Code: Select all
#1//B4,CS
4................................................................................
.......10.1..1.110.1..111.01....1.101...1...0...1..1.0........0......1.0...1...10
..1.......1.1.....1..............1..1.11.....1..1.....1.1.....111.11.11.000000000

Exactly correct.
It is a rather clumsy task to "type over" from a picture to ascii strings.
What I did is type a "4" and goto the ascii tabpage,
with ^C and ^V copy line in Notepad.
Clear all cells.
Then all cells with a right consecutive neighbor place a "1" in the cell. Copy paste line from Ascii tabpage to Notepad.
Then same with cells with a cs neighbor down.
Finally select all lines from Notepad. ^C and Paste button in SiSeSuSo.

This puzzle needs Forcing Nets, but has a unique solution.
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Postby 1to9only » Fri Mar 17, 2023 1:29 pm

block 1 and column 1 can be solved from the 5-cells consecutive sequences.

stack: Show
Code: Select all
+----------------------------+-
| 4        2        5        |
| 1        7        6        |
| 3        8        9        |
+----------------------------+-
| 2        13       1347     |
| 5        4        3478     |
| 6        1349     3478     |
+----------------------------+-
| 7        1345     1234     |
| 8        3456     1234     |
| 9        3456     1234     |
+----------------------------+-

naked single: Show
Code: Select all
r5c2=4 (naked single)
-3r4c2, -3r6c2, -3r5c3 (not consecutive)
-3r8c2 as r9c2not24, -3r9c2 as r8c2not24, -3r6c3 as r5c3not24

stack: Show
Code: Select all
+----------------------------+-
| 4        2        5        |
| 1        7        6        |
| 3        8        9        |
+----------------------------+-
| 2        1        137      |
| 5        4        78       |
| 6        19       78       |
+----------------------------+-
| 7        135      1234     |
| 8        56       1234     |
| 9        56       1234     |
+----------------------------+-

The consecutive sudoku is then solved using basics (1x pointing (2.6) needed).
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Re:

Postby Hajime » Fri Mar 17, 2023 4:29 pm

1to9only wrote:block 1 and column 1 can be solved from the 5-cells consecutive sequences.

Yes, I have to make SiSeSuSo smarter....
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Re: Consecutive sudoku from John Musgrave(sudoku puzzles)

Postby urhegyi » Fri Mar 24, 2023 9:16 am

Another one from the same author:
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Re: Consecutive sudoku from John Musgrave(sudoku puzzles)

Postby Hajime » Fri Mar 24, 2023 2:17 pm

Now we know the recipe of 1to9only row 2 is not too hard and row 6 col 7 can not be a 4...
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Postby 1to9only » Fri Mar 24, 2023 10:46 pm

I've had a look at the 2nd consecutive sudoku posted. The 4 and 5 (givens) allow some cells to solved.
At some point, you'll need use the 'Consecutive Claiming' logic I described here.
Otherwise the puzzle solves with basics only.
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Re: Consecutive sudoku from John Musgrave(sudoku puzzles)

Postby docjohn » Tue Jun 13, 2023 2:22 pm

For those interested in consecutive sudoku (or consecu-doku as I call it), I've gotten better at creating these types of puzzle and now publish daily ones.

Here is the link:

http://manifestmaster.com/DocsConsecudoku/index.html

Enjoy!
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