dailysudoku.com Forum Index dailysudoku.com
Discussion of Daily Sudoku puzzles
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Vanhegan extreme September 24, 2012

 
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Other puzzles
View previous topic :: View next topic  
Author Message
arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

PostPosted: Mon Sep 24, 2012 6:09 am    Post subject: Vanhegan extreme September 24, 2012 Reply with quote

Code:

 *-----------*
 |5.7|893|1..|
 |8..|.4.|.7.|
 |...|2.7|.3.|
 |---+---+---|
 |.9.|..8|...|
 |...|.1.|...|
 |...|9..|.2.|
 |---+---+---|
 |.7.|1.5|...|
 |.4.|.2.|..7|
 |..2|476|5.1|
 *-----------*
 


Play/Print this puzzle online
Back to top
View user's profile Send private message
Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

PostPosted: Mon Sep 24, 2012 5:59 pm    Post subject: Reply with quote

Code:
+--------------+--------------+------------+
| 5    2   7   |  8    9    3 | 1    6 4   |
| 8   A36 E369 | B56   4    1 | 29   7 259 |
| 469  1   469 |  2   C56   7 | 89   3 589 |
+--------------+--------------+------------+
| 2    9  F346 |  567 -35-6 8 | 347  1 36  |
| 467  36  8   |  67   1    2 | 3479 5 369 |
| 67   5   1   |  9   D36   4 | 378  2 368 |
+--------------+--------------+------------+
| 69   7   69  |  1    8    5 | 23   4 23  |
| 1    4   5   |  3    2    9 | 6    8 7   |
| 3    8   2   |  4    7    6 | 5    9 1   |
+--------------+--------------+------------+


Couldn't find the one-stepper.

XY-Chain, A=6-->D=3 via ABCD; transport 3 from A to F via E; r4c5<>3.

Without further diagrams: W-Wing on 36 in boxes 16 with SL 3 in r5. Transport 6 from A to C; r4c5<>6.
Back to top
View user's profile Send private message
arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

PostPosted: Mon Sep 24, 2012 6:14 pm    Post subject: Reply with quote

Code:
 
 *-----------------------------------------------------------*
 | 5     2     7     | 8     9     3     | 1     6     4     |
 | 8     36    369   | 56    4     1     | 29    7     259   |
 | 469   1     469   | 2     56    7     | 89    3     589   |
 |-------------------+-------------------+-------------------|
 | 2     9     346   | 567   356   8     | 347   1    c36    |
 | 467  a36    8     | 67    1     2     | 479-3 5     69-3  |
 |b67    5     1     | 9     36    4     |c378   2    c368   |
 |-------------------+-------------------+-------------------|
 | 69    7     69    | 1     8     5     | 23    4     23    |
 | 1     4     5     | 3     2     9     | 6     8     7     |
 | 3     8     2     | 4     7     6     | 5     9     1     |
 *-----------------------------------------------------------*
wing
(3=6)r5c2-(6=7)r6c1-(7=nt[683])r46c9,r6c7 => -3r5c79; stte

either r5c2 is a 3 or a naked triple exists in r46c9,r6c7


Play/Print this puzzle online
Back to top
View user's profile Send private message
tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

PostPosted: Mon Sep 24, 2012 9:22 pm    Post subject: Reply with quote

I seemed to have found the same solution path as Dan but viewed it as an almost xy-wing.

{xy-wing(67-3)r6c1+r5c2|r6c7} = (8)r6c7-(8=36)r46c9; -3r5c79

Note: To clarify my logic and the associated notation, I present the simple xy-wing in curly brackets, {}, assuming r6c7=37 and then add the almost condition, r6c7=8; the common deletions are listed.

Ted
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Other puzzles All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group