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 

Set J Puzzle 16 -- VH+

 
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Puzzles by daj
View previous topic :: View next topic  
Author Message
daj95376



Joined: 23 Aug 2008
Posts: 3855

PostPosted: Sun Feb 01, 2009 10:27 am    Post subject: Set J Puzzle 16 -- VH+ Reply with quote

Code:
 +-----------------------+
 | 6 5 . | . . 9 | . . . |
 | 4 8 . | . . 2 | . . 1 |
 | . . 9 | . . . | . . 4 |
 |-------+-------+-------|
 | . . . | 9 . 6 | . 1 . |
 | . . . | . 5 . | 4 . . |
 | 2 1 . | 4 . 3 | 9 . 5 |
 |-------+-------+-------|
 | . . . | . 9 8 | 1 . 6 |
 | . . . | 6 . . | . . . |
 | . 2 6 | . . 4 | 7 . . |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site

===== ===== ===== ===== ===== ===== ===== ===== ===== Ratings

Can be solved using steps from ...

Basics: Naked/Hidden Single, Naked Pair/Triple, Locked Candidate 1/2

Basics+: Naked Quad, Hidden Pair/Triple/Quad

VH: BUG+1, UR Type 1, X-Wing, XY-Wing, XYZ-Wing

VH+: 2-String Kite, Empty Rectangle, Remote Pair, Skyscraper, Colors, UR Type 2

Advanced: finned X-Wing, Multiple Colors, Swordfish, M-Wing, W-Wing, XY-Chain

Extreme: Jellyfish, (but mostly) Chain
Back to top
View user's profile Send private message
tlanglet



Joined: 17 Oct 2007
Posts: 2461
Location: Northern California Foothills

PostPosted: Sun Feb 01, 2009 9:22 pm    Post subject: Reply with quote

Here is my code after basics.
Code:

 *-----------------------------------------------------------*
 | 6     5     2     | 1     4     9     | 38    378   378   |
 | 4     8     37    | 357   367   2     | 56    9     1     |
 | 1     37    9     | 3578  3678  57    | 256   25    4     |
 |-------------------+-------------------+-------------------|
 | 357   347   45    | 9     278   6     | 238   1     2378  |
 | 9     6     378   | 278   5     1     | 4     2378  2378  |
 | 2     1     78    | 4     78    3     | 9     6     5     |
 |-------------------+-------------------+-------------------|
 | 357   347   45    | 2357  9     8     | 1     235   6     |
 | 3578  9     1     | 6     237   57    | 2358  4     238   |
 | 358   2     6     | 35    1     4     | 7     358   9     |
 *-----------------------------------------------------------*

I wandered around for seven (Yes, I do mean 7) steps to finish this the first time, but I am going to try for something shorter (one day).
Quote:
Multi-coloring <2>,
ER <5> then ER <7>,
xy-wing <357> or a w-wing <37> provide the identical resultant deletions,
xy-wing <678>,
xyz-wing <357>,
and another ER <7>

I do enjoy these types of puzzles..........

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



Joined: 18 Oct 2007
Posts: 1741

PostPosted: Mon Feb 02, 2009 1:50 am    Post subject: Reply with quote

Code:
.------------------.------------------.------------------.
| 6     5     2    | 1     4     9    | 38    378   378  |
| 4     8     37   | 357   367   2    |*56    9     1    |
| 1     37    9    | 3578  3678 *57   |*256  *25    4    |
:------------------+------------------+------------------:
| 357   347   45   | 9     278   6    | 238   1     2378 |
| 9     6     378  | 278   5     1    | 4     2378  2378 |
| 2     1     78   | 4     78    3    | 9     6     5    |
:------------------+------------------+------------------:
| 357   347   45   | 2357  9     8    | 1     235   6    |
| 3578  9     1    | 6     237  *57   |23-58  4     238  |
| 358   2     6    | 35    1     4    | 7     358   9    |
'------------------'------------------'------------------'

the ER 5 removes 5 from r8c7

Code:
.------------------.------------------.------------------.
| 6     5     2    | 1     4     9    | 38    378   378  |
| 4     8    W37   |*357   367   2    | 56    9     1    |
| 1    W37    9    |*3578 36-78 5-7   | 56    2     4    |
:------------------+------------------+------------------:
| 357   347   45   | 9     2     6    | 38    1     378  |
| 9     6    W378  |*78    5     1    | 4    W37    2    |
| 2     1     78   | 4     78    3    | 9     6     5    |
:------------------+------------------+------------------:
| 357   347   45   | 2     9     8    | 1     35    6    |
| 358   9     1    | 6     37    57   | 2     4     38   |
| 358   2     6    | 35    1     4    | 7     358   9    |
'------------------'------------------'------------------'

this extended w-wing with group ending finishes it.
(7=3)r3c2 - (3)r2c3 = (3)r5c3 - (3=7)r5c8 - (7)r5c4 = (7)r23c4; r3c56 <> 7
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Puzzles by daj 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