Author |
Message |
Topic: Impossible Menneske No. 11 |
DonM
Replies: 4
Views: 28063
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Forum: 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: 62457
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Forum: 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: 79189
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Forum: 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: 79189
|
Forum: 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: 79189
|
Forum: 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: 79189
|
Forum: 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: 48906
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Forum: 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: 48906
|
Forum: 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: 48906
|
Forum: 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: 48360
|
Forum: 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: 48360
|
Forum: 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: 48906
|
Forum: 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. |
Topic: Impossible Menneske No. 02 |
DonM
Replies: 7
Views: 39112
|
Forum: 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: 39112
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Forum: 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. |
Topic: Impossible Menneske No. 01 |
DonM
Replies: 7
Views: 41580
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Forum: 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: 43821
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Forum: 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. |
Topic: au tough June 23, 2012 |
DonM
Replies: 22
Views: 71675
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Forum: 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: 80970
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Forum: 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: 80970
|
Forum: 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: 24003
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Forum: 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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