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keith
Joined: 19 Sep 2005 Posts: 3355 Location: near Detroit, Michigan, USA
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Posted: Sun Jun 08, 2008 7:33 pm Post subject: All those bivalue cells! |
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Code: | Puzzle: M3511147sh(23)
+-------+-------+-------+
| 3 . . | . . 5 | . . 8 |
| . 5 . | . 8 . | . 9 . |
| 4 . 8 | . 9 . | 7 . 5 |
+-------+-------+-------+
| . . . | 6 1 . | . . . |
| . 1 6 | . . . | 8 4 . |
| . . . | . 7 9 | . . . |
+-------+-------+-------+
| 8 . 4 | . 2 . | 5 . 3 |
| . 3 . | . 4 . | . 8 . |
| 9 . . | 1 . . | . . 4 |
+-------+-------+-------+ |
I didn't have to use Medusa, but I was tempted ...
Keith |
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storm_norm
Joined: 18 Oct 2007 Posts: 1741
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Posted: Sun Jun 08, 2008 8:05 pm Post subject: |
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Code: | .---------------.---------------.---------------.
| 3 9 17 | 47 6 5 | 14 2 8 |
|#16 5 27 | 47 8 23 | 34 9 #16 |
| 4 #26 8 | 23 9 1 | 7 #36 5 |
:---------------+---------------+---------------:
| 25 8 9 | 6 1 4 | 23 357 27 |
| 7 1 6 | 23 5 23 | 8 4 9 |
| 25 4 3 | 8 7 9 | 126 56 126 |
:---------------+---------------+---------------:
| 8 67 4 | 9 2 67 | 5 1 3 |
| 16 3 12 | 5 4 67 | 9 8 267 |
| 9 #267 5 | 1 3 8 |#26 -67 4 |
'---------------'---------------'---------------' |
marked is an extended M-wing
(6=2)r9c7-(2)r9c2=(2-6)r3c2=(6)r2c1-(6)r2c9=(6)r3c8; r9c8<>6
leaves this
Code: | .---------------.---------------.---------------.
| 3 9 17 | 47 6 5 | 14 2 8 |
| 16 5 27 | 47 8 23 | 34 9 16 |
| 4 26 8 | 23 9 1 | 7 36 5 |
:---------------+---------------+---------------:
| 25 8 9 | 6 1 4 | 23 35 7 |
| 7 1 6 | 23 5 23 | 8 4 9 |
| 25 4 3 | 8 7 9 | 126 56 126 |
:---------------+---------------+---------------:
| 8 7 4 | 9 2 6 | 5 1 3 |
| 16 3 12 | 5 4 67 | 9 8 26 |
| 9 26 5 | 1 3 8 | 26 7 4 |
'---------------'---------------'---------------' |
x-wing on 6, and its done.
Ravel wrote: Quote: | Hi Norm,
i suggest not to post "standard" solutions immediately after the puzzle, because it could spoil the fun for others.
Maybe you could use white Font colour for your text, so that people have to mark the text to be able to read it, like this:
This is my solution
or
solution wrote:
This is my solution
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I can't find a good reason why I should comply with this.
#1, Ravel is not a moderator
#2. if my posts aren't warranted then its the moderators decision to delete my postings.
#3... my fault for being so fast to post. didn't know there was a time limit.
Last edited by storm_norm on Sun Jun 08, 2008 8:26 pm; edited 2 times in total |
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keith
Joined: 19 Sep 2005 Posts: 3355 Location: near Detroit, Michigan, USA
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Posted: Sun Jun 08, 2008 8:12 pm Post subject: |
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Quote: | marked is an extended M-wing |
Code: | .---------------.---------------.---------------.
| 3 9 17 | 47 6 5 | 14 2 8 |
| 16 5 27 | 47 8 23 | 34 9 16 |
| 4 #26 8 | 23 9 1 | 7 #36 5 |
:---------------+---------------+---------------:
| 25 8 9 | 6 1 4 | 23 357 27 |
| 7 1 6 | 23 5 23 | 8 4 9 |
| 25 4 3 | 8 7 9 | 126 56 126 |
:---------------+---------------+---------------:
| 8 @67 4 | 9 2 67 | 5 1 3 |
| 16 3 12 | 5 4 67 | 9 8 267 |
| 9 26-7 5 | 1 3 8 | 26 @67 4 |
'---------------'---------------'---------------' |
Or, a W-wing which accomplishes the same thing.
Keith
Last edited by keith on Mon Jun 09, 2008 12:13 am; edited 2 times in total |
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nataraj
Joined: 03 Aug 2007 Posts: 1048 Location: near Vienna, Austria
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Posted: Sun Jun 08, 2008 8:39 pm Post subject: |
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w-wing pincers 67 in r7c2, r9c8 connected via strong link 6 in row 3.
And then, the x-wing (6), of course. But not done yet.
BUG+1 or xyz-wing (1,2,6 "pivot" r6c7)
Hm. It seems I made the same eliminations Norm and keith did. But I am pretty sure I needed that BUG+1/xyz-wing ... Must do it again tomorrow. |
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Earl
Joined: 30 May 2007 Posts: 677 Location: Victoria, KS
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Posted: Sun Jun 08, 2008 9:17 pm Post subject: bivalves |
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Using xy-chains I came up with an apparent BUG+1 in R6C9 - which was INVALID because there was also a hiddden single in R9C7.
Earl |
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Myth Jellies
Joined: 27 Jun 2006 Posts: 64
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Posted: Mon Jun 09, 2008 6:14 am Post subject: |
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Code: | .---------------.---------------.---------------.
| 3 9 17+ | 47+ 6 5 | 14+ 2 8 |
| 16+ 5 27+ | 47+ 8 23+ | 34+ 9 16+ |
| 4 26 8 | 23+ 9 1 | 7 36+ 5 |
:---------------+---------------+---------------:
| 25 8 9 | 6 1 4 | 23+ 37+5 27+ |
| 7 1 6 | 23+ 5 23+ | 8 4 9 |
| 25 4 3 | 8 7 9 | 16+2 56 16+2|
:---------------+---------------+---------------:
| 8 67+ 4 | 9 2 67+ | 5 1 3 |
| 16+ 3 12+ | 5 4 67+ | 9 8 27+6|
| 9 27+6 5 | 1 3 8 | 26+ 67+ 4 |
'---------------'---------------'---------------' |
BUG-Lite+5 ( Ha ha ha ha ha)
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(5)r4c8 - (7)r4c8 = (7)r9c8
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(2)r6c79 - (2=7)r4c9
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(6)r9c2 - (6=7)r9c8
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(6)r8c9 ====> all imply r8c9 <> 7
Then either an x-wing (6)r28/c19 followed by BUG+1
or
BUG+2: (2)r6c7 =BUG= (6)r6c9 => r6c9 <> 2 & r6c7 <> 6 |
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