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Set N Puzzle 99 -- VH

 
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daj95376



Joined: 23 Aug 2008
Posts: 3855

PostPosted: Thu Jan 29, 2009 7:09 pm    Post subject: Set N Puzzle 99 -- VH Reply with quote

multi-step VH.

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

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/Sashimi X-Wing, Multiple Colors, Swordfish, M-Wing, W-Wing, XY-Chain

Extreme: Jellyfish, (but mostly) Chain
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storm_norm



Joined: 18 Oct 2007
Posts: 1741

PostPosted: Fri Jan 30, 2009 7:37 am    Post subject: Reply with quote

Code:
.------------------.------------------.------------------.
| 7     9     6    | 1     458   458  | 2358  258   38   |
| 3     4     5    | 2     89    7    | 6     89    1    |
| 2     8     1    | 3     6     59   | 59    4     7    |
:------------------+------------------+------------------:
| 5     2     8    | 6     7     349  | 349   1     34   |
| 1     6     9    | 48    2     348  | 348   7     5    |
| 4     3     7    | 589   589   1    | 289   289   6    |
:------------------+------------------+------------------:
| 6     1     3    | 7     48    2    | 458   58    9    |
| 89    7     2    | 4589  3     4589 | 1     6     48   |
| 89    5     4    | 89    1     6    | 7     3     2    |
'------------------'------------------'------------------'

Quote:
x-wing 9
UR {8,9}
(9=8)r2c5 - (8)r7c5 = (8)r8c6 - (8=4)r8c9 - (4=5)r8c4 - (5)r6c4 = (5)r6c5; r6c5 <> 9
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wapati



Joined: 10 Jun 2008
Posts: 472
Location: Brampton, Ontario, Canada.

PostPosted: Fri Jan 30, 2009 3:53 pm    Post subject: Reply with quote

It is hard to do this as a VH because there are many shortcuts. For me not using skyscrapers was hardest.

I did do it with: xy-wing, xyz-wing, x-wing, UR1, x-wing, and xy-wing.

Fun puzzle!
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daj95376



Joined: 23 Aug 2008
Posts: 3855

PostPosted: Fri Jan 30, 2009 3:56 pm    Post subject: Reply with quote

wapati wrote:
It is hard to do this as a VH because there are many shortcuts. For me not using skyscrapers was hardest.

I did do it with: xy-wing, xyz-wing, x-wing, UR1, x-wing, and xy-wing.

Fun puzzle!

I'm glad you enjoyed it!
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