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Set NNP Puzzle 30

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daj95376

Joined: 23 Aug 2008
Posts: 3854

Posted: Mon Jan 26, 2009 3:09 am Post subject: Set NNP Puzzle 30

Rated: Depends upon what you find -- or don't find.

Code:

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

Play this puzzle online at the Daily Sudoku site

Marty R.

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

Posted: Mon Jan 26, 2009 5:47 am Post subject:

Quote:

Rated: Depends upon what you find -- or don't find.

Three steps based on what I found. I have no idea of what I didn't find. Wink

Quote:

W-Wing (25), Type 4 UR (24) and XY-Wing (265) with pincer transport

tlanglet

Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

Posted: Tue Jan 27, 2009 1:23 pm Post subject:

I found 5 steps as follows:

Quote:

An "underground" skyscraper on <5>,
Type 4 UR24,
coloring on <2>,
w-wing25 which provided a deletion and then transported both pincers to get a second deletion,
and a xy-wing245 with pivot <24> at r9c2.

Do I get the "Brass Ring" Question

Ted[

wapati

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

Posted: Tue Jan 27, 2009 1:54 pm Post subject:

Quote:

I liked the 25 W-wing followed by a 256 xy-wing. This simplifies into a BUG, although there is a 5-cell xy-chain if you don't like BUGs.

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