Dots only

Everything about Sudoku that doesn't fit in one of the other sections

Dots only

Postby CarolineMary » Wed Sep 14, 2005 1:44 pm

Some of us use dots to assist in Sudoku solution.

I will pencil in a dot in the appropriate place to indicate that a cell cannot be a specific number.

So for example a cell that contains the layout below could be a 5 or 9.

...
_..
..

(Sorry, I know that's probably teaching granny to suck eggs, but I thought it best to explain fully.)

My question is this. Would it be possible to produce a solveable grid that has no actual starting numbers, merely dots indicating two numbers could go in the relevant cells?

(Edit: It lookes like leading spaces go missing, so I replaced with an underscore)
CarolineMary
 
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Joined: 09 September 2005

Postby dukuso » Wed Sep 14, 2005 6:06 pm

use {code} ..picture in ascii-art.. {code}
with [] instead of {} as here:


Code: Select all

. . .
.   .
. .






yes, I think it can probably be done but I'm too lazy to figure out an actual example. Maybe later. Or maybe Tso knows this
sort of puzzle already...


edit: it doesn't look good with points, so I try it with "*" :

Code: Select all

* * *
*   *
* *


dukuso
 
Posts: 479
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Postby tso » Wed Sep 14, 2005 7:47 pm

See this post:

http://forum.enjoysudoku.com/viewtopic.php?t=1033

The puzzle DIGIT PLACE can be considered an example of exactly what you suggest.



Code: Select all
(.23456)(...456)(123456)|(.23.56)(1.3456)(...456)
(.23456)(123456)(123456)|(1234..)(123456)(123456)
------------------------+------------------------
(.23.56)(123456)(.23456)|(...456)(.234..)(...456)
(.2...6)(.23.56)(.23.56)|(123456)(.2...6)(123456)
------------------------+------------------------
(123456)(.2...6)(.2...6)|(123456)(.234..)(.234..)
(.23456)(...456)(...456)|(123456)(...456)(.2...6)


Another one is here:
http://forum.enjoysudoku.com/viewtopic.php?t=995&postdays=0&postorder=asc&start=15
tso
 
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