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  Topic: Impossible Menneske No. 11
DonM

Replies: 4
Views: 6070

PostForum: Other puzzles   Posted: Sun Apr 21, 2013 5:20 am   Subject: Impossible Menneske No. 11
Menneske Impossible 11 ER=7.2 post-SSTS:

*-----------------------------------------------------------------------------*
| 23579 2357 6 | 239 4 8 | 12357 1257 123 ...
  Topic: Sudopedia: Nishio
DonM

Replies: 1
Views: 11601

PostForum: Solving techniques, and terminology   Posted: Sat Mar 23, 2013 10:38 pm   Subject: Sudopedia: Nishio
From the definition above:
'There is a wide range of single digit solving techniques which diminish the need for Nishio.'

This is even more true now than when this was first written (probably in ...
  Topic: Impossible Menneske No. 09
DonM

Replies: 21
Views: 17061

PostForum: Other puzzles   Posted: Wed Mar 20, 2013 9:02 pm   Subject: Impossible Menneske No. 09
JC, I'm wondering where the Nishio came from. I haven't seen it mentioned as part of a solution for a long time.
I borrowed the term Nishio from Ruud's SudoCue Solver to mean the elimination of all t ...
  Topic: Impossible Menneske No. 09
DonM

Replies: 21
Views: 17061

PostForum: Other puzzles   Posted: Wed Mar 20, 2013 1:17 am   Subject: Impossible Menneske No. 09
Menneske Impossible 9 (ER=7.2) at SSTS (post Simple Sudoku Technique Set ie. 'No hint possible'):

*--------------------------------------------------------------------------------------*
| 2 ...
  Topic: Impossible Menneske No. 09
DonM

Replies: 21
Views: 17061

PostForum: Other puzzles   Posted: Wed Mar 20, 2013 12:54 am   Subject: Impossible Menneske No. 09
JC, I'm wondering where the Nishio came from. I haven't seen it mentioned as part of a solution for a long time.
I borrowed the term Nishio from Ruud's SudoCue Solver to mean the elimination of all t ...
  Topic: Impossible Menneske No. 09
DonM

Replies: 21
Views: 17061

PostForum: Other puzzles   Posted: Mon Mar 18, 2013 1:39 am   Subject: Impossible Menneske No. 09
JC, I'm wondering where the Nishio came from. I haven't seen it mentioned as part of a solution for a long time.
  Topic: Impossible Menneske No. 03
DonM

Replies: 8
Views: 9296

PostForum: Other puzzles   Posted: Tue Mar 12, 2013 9:49 pm   Subject: Impossible Menneske No. 03
I started in block H to find out wich ones of the fives is correct. Turned out to be R9C6.

oaxen, I'm just interested: How did you determine which of the 5s were correct in box 8 (your block H)?
...
  Topic: Impossible Menneske No. 03
DonM

Replies: 8
Views: 9296

PostForum: Other puzzles   Posted: Mon Mar 11, 2013 8:01 pm   Subject: Impossible Menneske No. 03
Finally got some time to get to this which IMO was the more difficult of the first 4 Menneske Impossibles:

Menneske Impossible 4 (ER=8.3) SSTS (post Simple Sudoku Technique Set):

*------------ ...
  Topic: Impossible Menneske No. 03
DonM

Replies: 8
Views: 9296

PostForum: Other puzzles   Posted: Mon Mar 11, 2013 7:49 pm   Subject: Impossible Menneske No. 03
Don't forget the pencil & paper so you don't forget the solution this time.

I started in block H to find out wich ones of the fives is correct. Turned out to be R9C6.
oaxen, I'm just interest ...
  Topic: Impossible Menneske No. 04
DonM

Replies: 10
Views: 10007

PostForum: Other puzzles   Posted: Sat Mar 09, 2013 7:25 am   Subject: Impossible Menneske No. 04
2. SIS aur(36)r19c12-8r2c12 is contained in the follow-on of step 1 (r89c7=6=r1c89,r2c12=67)!
But it doesn't imply -8r1c789 because of 8r3c3!

Yes, another reason why I shouldn't do any solving aft ...
  Topic: Impossible Menneske No. 04
DonM

Replies: 10
Views: 10007

PostForum: Other puzzles   Posted: Tue Mar 05, 2013 2:30 am   Subject: Impossible Menneske No. 04
Menneske Impossible 4 (ER=7.1) post SSTS (Simple Sudoku Technique Set):

*-----------------------------------------------------------------------------*
| 23689 2368 489 | 7 124589 ...
  Topic: Impossible Menneske No. 03
DonM

Replies: 8
Views: 9296

PostForum: Other puzzles   Posted: Sun Mar 03, 2013 12:37 am   Subject: Impossible Menneske No. 03
We will se. Now I shall ask my butler to prepare a nice cup of tea and start the work.

Don't forget the pencil & paper so you don't forget the solution this time. Wink
  Topic: Impossible Menneske No. 02
DonM

Replies: 7
Views: 7033

PostForum: Other puzzles   Posted: Fri Mar 01, 2013 10:55 pm   Subject: Impossible Menneske No. 02
Menneske Impossible 2 ssts ER=7.3
*-----------------------------------------------------------------------------*
| 1239 1239 39 | 23469 8 12349 | 5 2346 7 |
...
  Topic: Impossible Menneske No. 02
DonM

Replies: 7
Views: 7033

PostForum: Other puzzles   Posted: Fri Mar 01, 2013 9:10 pm   Subject: Impossible Menneske No. 02
This was the hardes puzzles I ever met. I solved it, but canīt remember the step I took.

I hate when that happens. Smile
  Topic: Impossible Menneske No. 01
DonM

Replies: 7
Views: 7784

PostForum: Other puzzles   Posted: Fri Mar 01, 2013 6:44 am   Subject: Impossible Menneske No. 01
Another view, albeit quick & dirty:

Post SSTS: ER 8.3
*--------------------------------------------------------------------*
| 3569 3489 5689 | 3678 34678 1 | 2478 23457 237 ...
  Topic: Collection July 2, 2012
DonM

Replies: 10
Views: 7656

PostForum: Other puzzles   Posted: Wed Jul 04, 2012 7:40 pm   Subject: Collection July 2, 2012
Jeez, I'm not going to mess with any Luke comments on Sudoku history. Smile
  Topic: au tough June 23, 2012
DonM

Replies: 22
Views: 13768

PostForum: Other puzzles   Posted: Thu Jun 28, 2012 5:12 pm   Subject: au tough June 23, 2012
(Revised over original post)

The original SDC pattern examples, including my own (http://forum.enjoysudoku.com/sue-de-coq-revisited-again-asi-1-t6410.html) were such that the digits in the 'outlyin ...
  Topic: gsf # 176 # 108
DonM

Replies: 25
Views: 15443

PostForum: Other puzzles   Posted: Sun Jun 17, 2012 4:37 am   Subject: gsf # 176 # 108

Hi Don !
One way of perserving the pattern, whilst simplifying the definition would be to extend the range in a symmetrical way (see below).
Define an SDC quite simply as a DL-ALS in which one AL ...
  Topic: gsf # 176 # 108
DonM

Replies: 25
Views: 15443

PostForum: Other puzzles   Posted: Wed Jun 13, 2012 10:00 pm   Subject: gsf # 176 # 108

This is probably ancient news, but I think all SDCs are also HSR (hub, spoke, rim) patterns, a pattern rarely used any more.
HSR imo suffered from lack of clear definition, and ended up being neith ...
  Topic: AU Tough, 1-4-2012
DonM

Replies: 5
Views: 4067

PostForum: Other puzzles   Posted: Fri May 25, 2012 12:42 am   Subject: AU Tough, 1-4-2012
As presented, I don't think this puzzle has a unique solution. Perhaps, something was miscopied.
 
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