Only rows and columns sudoku variant

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Only rows and columns sudoku variant

Postby creint » Thu Aug 02, 2018 3:36 pm

This sudoku variant is probably easier to solve than a normal sudoku.
This one requires only singles, are there any of this type that need more logic to solve?
So far i have found only ones that are solvable with singles, so only singles strategy needed.
Code: Select all
.18..3..7
.7.2.168.
...39.85.
...126..5
7.9..2..6
.8.5..37.
.67..9421
1.3.6...8
3.2....9.


Solution:
Hidden Text: Show
Code: Select all
418953267
975241683
641397852
894126735
739482516
286514379
567839421
123765948
352678194
creint
 
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Re: Only rows and columns sudoku variant

Postby tarek » Fri Aug 03, 2018 4:47 pm

Hi creint,

This version is called Latin Square & it pre-dates Sudoku.

Sudoku or Su-do-ku is considered a variant of Latin square not the other way round IMO.

with no box constraints there will be no Line-Box interactions but any logical technique that doesn't rely on that should be still present (locked sets ... etc)

tarek
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Re: Only rows and columns sudoku variant

Postby Mathimagics » Mon Aug 06, 2018 1:01 pm

.
It might equally be called "Clueless Futoshiki", or "Cluless Skyscraper" 8-)
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