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Set E Puzzle 90

 
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daj95376



Joined: 23 Aug 2008
Posts: 3855

PostPosted: Fri Dec 05, 2008 11:13 pm    Post subject: Set E Puzzle 90 Reply with quote

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

Play this puzzle online at the Daily Sudoku site
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tlanglet



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

PostPosted: Sat Dec 06, 2008 4:23 am    Post subject: Reply with quote

Still another great VH puzzle if you do not take the two Type 1 URs present after basics.

It required four moves for me, but I had to almost start from scratch after each VH step because the character of the puzzle seemed to change. It did not just want to die!

My steps were:
Quote:

x-wing <4>,
w-wing <26> with strong link <2>,
xy-wing <478> makes one deletion, transporting makes two more, and
Bug+1

Ted Razz
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Marty R.



Joined: 12 Feb 2006
Posts: 5165
Location: Rochester, NY, USA

PostPosted: Sat Dec 06, 2008 10:48 pm    Post subject: Reply with quote

I used a Type 4 on 34 and another on 17, followed by a Type 1 on 69. I don't know what might have happened had I found the Type 1 earlier. At any rate, a W-Wing on 49 finished it off.
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tlanglet



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

PostPosted: Sat Dec 06, 2008 11:26 pm    Post subject: Reply with quote

Marty R. wrote:
I used a Type 4 on 34 and another on 17, followed by a Type 1 on 69. I don't know what might have happened had I found the Type 1 earlier. At any rate, a W-Wing on 49 finished it off.


Norm, I saw Type 1 URs on <17> & <69> early in the game and elected not to use them but suspect that they would result in a shorter solution path.

Ted
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