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 Fiendish Sept 26

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



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

PostPosted: Fri Sep 26, 2008 10:26 pm    Post subject: Vanhegan Fiendish Sept 26 Reply with quote

Here is a VH puzzle that provided me numerous "useless" solutions before I overcame it.

Code:

 *-----------*
 |7..|642|.9.|
 |48.|...|6..|
 |..2|.9.|4..|
 |---+---+---|
 |.9.|4.3|...|
 |5..|...|..1|
 |...|1.5|.4.|
 |---+---+---|
 |..6|.3.|1..|
 |..4|...|.25|
 |.1.|284|..6|
 *-----------*


Hope you enjoy ......

Ted
Back to top
View user's profile Send private message
daj95376



Joined: 23 Aug 2008
Posts: 3854

PostPosted: Sat Sep 27, 2008 5:22 am    Post subject: Reply with quote

Since you didn't indicate a solution, I have no idea if I'm reinventing the wheel. Also, I'm no good at DPs, so this is probably wrong anyway.

(789) DP in [c46] forces [r3c6]=1 Question

I have two alternate solutions if this one is incorrect or already taken.
Back to top
View user's profile Send private message
nataraj



Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria

PostPosted: Sat Sep 27, 2008 6:36 am    Post subject: Reply with quote

After basics
Code:

+--------------------------+--------------------------+--------------------------+
| 7       35      1        | 6       4       2        | 58      9       38       |
| 4       8       9        | 3       5       17       | 6       1-7     2        |
| 36#     356     2        | 78      9       178      | 4       15-7    37*      |
+--------------------------+--------------------------+--------------------------+
| 1       9       78       | 4       26      3        | 25      56      78       |
| 5       4       37       | 89      26      89       | 237     367     1        |
| 26      26      38       | 1       7       5        | 38      4       9        |
+--------------------------+--------------------------+--------------------------+
| 29      27      6        | 5       3       79       | 1       8       4        |
| 8       37      4        | 79      1       6        | 39      2       5        |
| 39#     1       5        | 2       8       4        | 379     37*     6        |
+--------------------------+--------------------------+--------------------------+


there is a w-wing (7) r3c9=r9c8 via (3) r3c1=r9c1; r23c8<>7
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Asellus



Joined: 05 Jun 2007
Posts: 865
Location: Sonoma County, CA, USA

PostPosted: Sat Sep 27, 2008 10:00 am    Post subject: Reply with quote

That c24 789 pattern is not a DP since the 79 pairs are not in the same row. So, the <1> placement is not valid.
Back to top
View user's profile Send private message Visit poster's website
tlanglet



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

PostPosted: Sat Sep 27, 2008 12:12 pm    Post subject: Reply with quote

I spotted the UR <17> in r23c68 with a x-wing <1> overlay that deleted <7> in r3c68. This then opened up a "useless" xy-wing <379> with pivot in r8c7, but the pincer at r8c4 can be transported to r2c6 thereby removing the <7> from r2c8 and completing the puzzle.

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