| View previous topic :: View next topic |
| Author |
Message |
daj95376
Joined: 23 Aug 2008
Posts: 3854
|
 Posted: Sat Dec 13, 2008 6:42 pm Post subject: Set G Puzzle 17 |
 |
|
This puzzle may present a challenge. Particularly if you're searching for the Kraken X-Wing lurking in the background. Fortunately, it isn't necessary to solve the puzzle.
| Code: | +-----------------------+
| 2 . . | . . 8 | . 1 . |
| . . 3 | 6 4 . | 7 2 8 |
| . 7 . | . . . | 4 . . |
|-------+-------+-------|
| . 9 . | 8 . 6 | . 3 . |
| . 3 . | . 2 . | 9 . . |
| 8 . . | 1 . . | . . . |
|-------+-------+-------|
| . 2 9 | . 6 . | . 4 1 |
| 3 8 . | 4 . . | 2 9 . |
| . 6 . | . . . | 3 . . |
+-----------------------+
|
Play this puzzle online at the Daily Sudoku site
BTW: Did you enjoy all of the Naked Pairs during the basics? |
|
| Back to top |
|
 |
storm_norm
Joined: 18 Oct 2007
Posts: 1741
|
| Posted: Sat Dec 13, 2008 8:17 pm Post subject: |
|
|
| Code: | .---------------------.---------------------.---------------------.
| 2 45 456 | 379 379 8 | 56 1 39 |
| 59 1 3 | 6 4 59 | 7 2 8 |
| 569 7 8 | 2359 1359 12359 | 4 56 39 |
:---------------------+---------------------+---------------------:
| 457 9 2457 | 8 57 6 | 1 3 24 |
| 16 3 16 | 57 2 4 | 9 8 57 |
| 8 45 2457 | 1 39 39 | 56 567 24 |
:---------------------+---------------------+---------------------:
| 57 2 9 | 35 6 357 | 8 4 1 |
| 3 8 57 | 4 15 157 | 2 9 6 |
| 14 6 14 | 29 8 29 | 3 57 57 |
'---------------------'---------------------'---------------------' |
skipping the UR's.
| Quote: | this solution is all about the 5's.
x-wing on 5 r16c27
opens up a singles chain on 5
(5)r4c5 = (5)r5c4 - (5)r5c9 = (5)r6c7 - (5)r1c7 = (5)r3c8; r3c5 <> 5
the ensuing strong links on 5 in column 5 help this next w-wing...
extended W-wing on (5,7) in r5c4 and r8c3 via the strong links on 5 in column 5, the extension is on the 7 in box 6.
(7=5)r5c4 - (5)r8c5 = (5)r4c5 - (5=7)r5c4 - (7)r5c9 = (7)r6c8; r6c3 <> 7 |
|
|
| Back to top |
|
|
Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
|
| Posted: Sun Dec 14, 2008 12:26 am Post subject: |
|
|
A six-stepper, but I think the first two steps made no contribution.
| Quote: | | XYZ on 457, Type 4 UR on 24, two ERs, both on 5, Hidden UR on 39 and simple coloring on 5 finished it off |
|
|
| Back to top |
|
|
tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
|
| Posted: Sun Dec 14, 2008 9:07 pm Post subject: |
|
|
I never got off digit <5>. In order, I had a finned x-wing <5>, a x-wing <5>, a finned x-wing <5>, a x-wing <5> and and xy-wing that made a deletion on <5> to finish off the puzzle. I don't recall a previous puzzle where I had several steps, each of which provided deletions on the identical digit only. 
I looked for the Kraken x-wing but did not find it.......... 
Ted |
|
| Back to top |
|
|
daj95376
Joined: 23 Aug 2008
Posts: 3854
|
| Posted: Sun Dec 14, 2008 10:12 pm Post subject: |
|
|
Ted: Since there aren't any 5s in the Givens, you sure made the most of it.
| Code: | after basics:
+-----------------------------------------------------------------------+
| 2 45 456 | 379 379 8 | 56 1 39 |
| 59 1 3 | 6 4 59 | 7 2 8 |
| 569 7 8 | 2359 1359 12359 | 4 56 39 |
|-----------------------+-----------------------+-----------------------|
| 457 9 2457 | 8 57 6 | 1 3 24 |
| 16 3 16 | 57 2 4 | 9 8 57 |
| 8 45 2457 | 1 39 39 | 56 567 24 |
|-----------------------+-----------------------+-----------------------|
| 57 2 9 | 35 6 357 | 8 4 1 |
| 3 8 57 | 4 15 157 | 2 9 6 |
| 14 6 14 | 29 8 29 | 3 57 57 |
+-----------------------------------------------------------------------+
c27 X-Wing <> 5 [r1c3],[r6c38]
c3 Naked Triple <> 146 [r46c3]
|
| Code: | *--------------------------------------------------------------------*
| 2 45 46 | 379 379 8 | 56 1 39 |
| 59 1 3 | 6 4 59 | 7 2 8 |
| 569 7 8 | 2359 1359 12359 | 4 56 39 |
|----------------------+----------------------+----------------------|
| 457 9 257 | 8 57 6 | 1 3 24 |
| 16 3 16 | 57 2 4 | 9 8 57 |
| 8 45 27 | 1 39 39 | 56 67 24 |
|----------------------+----------------------+----------------------|
| 57 2 9 | 35 6 357 | 8 4 1 |
| 3 8 57 | 4 15 157 | 2 9 6 |
| 14 6 14 | 29 8 29 | 3 57 57 |
*--------------------------------------------------------------------*
Kraken X-Wing c35\r48 w/ext fin cell [r3c5]
X-Wing => [r4c1]<>5, [r8c6]<>5
[r3c5]=5 [r2c6]<>5 [r2c1]=5 ([r4c1]<>5) [r7c1]<>5 [r8c3]=5 ([r8c6]<>5)
+-----------------------------------+
| . 5 . | . . . | 5 . . |
| 5 . . | . . 5 | . . . |
| 5 . . | 5 @5 5 | . 5 . |
|-----------+-----------+-----------|
| -5 . *5 | . *5 . | . . . |
| . . . | 5 . . | . . 5 |
| . 5 . | . . . | 5 . . |
|-----------+-----------+-----------|
| 5 . . | 5 . 5 | . . . |
| . . *5 | . *5 -5 | . . . |
| . . . | . . . | . 5 5 |
+-----------------------------------+
|
My solver's solution, sans basics, for the puzzle:
| Code: | c27 X-Wing <> 5 [r1c3],[r6c38]
Colors <> 5 [r3c5]
c35 X-Wing <> 5 [r4c1],[r8c6]
XY-Wing [r4c1]/[r4c5]+[r6c2] <> 5 [r4c3]
|
I'm impressed with the interesting solutions everyone is finding in my puzzles  |
|
| Back to top |
|
|
|
|
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
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
