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 NNP Puzzle 88

 
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: 3854

PostPosted: Tue Jan 20, 2009 9:48 am    Post subject: Set NNP Puzzle 88 Reply with quote

Set No_Name_Please Embarassed

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

Play this puzzle online at the Daily Sudoku site

===== ===== ===== ===== ===== ===== ===== ===== ===== ===== ===== ===== =====

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, Remote Pair, UR Type 1, X-Wing, XY-Wing

Advanced: 2-String Kite, Empty Rectangle, Skyscraper, UR Type 2, XYZ-Wing

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

VH+AE: multi-step VH plus one Advanced and/or one Extreme step.

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



Joined: 18 Oct 2007
Posts: 1741

PostPosted: Tue Jan 20, 2009 8:40 pm    Post subject: Reply with quote

Code:
.---------------------.---------------------.---------------------.
| 8      13     9     | 36     5      4     | 2      7      136   |
| 4      13     7     | 3689   2369   23689 | 36     1369   5     |
| 5      6      2     | 1      7      39    | 8      39     4     |
:---------------------+---------------------+---------------------:
| 1      89     5     | 2      36     3678  | 367    4      369   |
| 2      89     6     | 3578   4      13578 | 357    138    139   |
| 7      4      3     | 5689   169    15689 | 56     168    2     |
:---------------------+---------------------+---------------------:
| 9      2      1     | 57     8      57    | 4      36     36    |
| 6      5      8     | 4      139    139   | 19     2      7     |
| 3      7      4     | 69     1269   1269  | 19     5      8     |
'---------------------'---------------------'---------------------'

w-wing {3,6} in rows 1 and 2 eliminates a number of 6's in rows 1 and 2
leaves this grid
Code:
.---------------------.---------------------.---------------------.
| 8      13     9     | 6      5      4     | 2      7      13    |
| 4      13     7     |L38     239    2389  |L36     1369   5     |
| 5      6      2     | 1      7      39    | 8      39     4     |
:---------------------+---------------------+---------------------:
| 1      89     5     | 2      36     3678  | 367    4      369   |
| 2      89     6     | 3578   4      13578 | 357    138    139   |
| 7      4      3     |L58     169    15689 |L56     168    2     |
:---------------------+---------------------+---------------------:
| 9      2      1     | 57     8      57    | 4      36     36    |
| 6      5      8     | 4      13     13    | 9      2      7     |
| 3      7      4     | 9      26     26    | 1      5      8     |
'---------------------'---------------------'---------------------'

the marked xy-loop makes a number of eliminations. it eliminates all other 3's in row 2
6's in column 7
5's in r6
8's in column 4

after the dust settles, a xyz-wing finishes it
Back to top
View user's profile Send private message
Marty R.



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

PostPosted: Wed Jan 21, 2009 5:59 am    Post subject: Reply with quote

I used two W-Wings on 36 (different pairs), a Finned X-Wing on 3 and a Type 2 UR on 57 finished it off.
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