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Set I Puzzle 16

 
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daj95376



Joined: 23 Aug 2008
Posts: 3855

PostPosted: Fri Jan 16, 2009 1:46 am    Post subject: Set I Puzzle 16 Reply with quote

Last puzzle of the set. Hopefully it'll be enjoyable and a challenge.

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

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
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Kdelle



Joined: 20 Mar 2008
Posts: 59
Location: Hudson, NH

PostPosted: Sat Jan 17, 2009 12:31 am    Post subject: Reply with quote

Danny,

Help! I'm here:

Code:

+--------------+-------------+------------+
| 7   1    49  | 5   468 3   | 689 2  489 |
| 5   8    249 | 24  46  1   | 469 7  3   |
| 34  234  6   | 247 478 9   | 5   1  48  |
+--------------+-------------+------------+
| 8   5    247 | 47  9   247 | 1   3  6   |
| 69  69   247 | 3   1   247 | 24  8  5   |
| 1   24   3   | 8   5   6   | 249 49 7   |
+--------------+-------------+------------+
| 346 3467 1   | 9   47  478 | 348 5  2   |
| 2   49   5   | 1   3   48  | 7   6  489 |
| 349 3479 8   | 6   2   5   | 349 49 1   |
+--------------+-------------+------------+

Play this puzzle online at the Daily Sudoku site


Can I get a hint please????

Thanks.

Kathy
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daj95376



Joined: 23 Aug 2008
Posts: 3855

PostPosted: Sat Jan 17, 2009 12:54 am    Post subject: Reply with quote

Kdelle wrote:
Can I get a hint please????

Absolutely!!!

The last two steps are both Advanced in my ratings. The first step exposes the second. That said ...

Hint 1 wrote:
XYZ-Wing ==> [r9c1]/[r3c1]+[r8c2]


Hint 2 wrote:
Empty Rectangle c8b7
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Marty R.



Joined: 12 Feb 2006
Posts: 5123
Location: Rochester, NY, USA

PostPosted: Sat Jan 17, 2009 1:48 am    Post subject: Reply with quote

I used two XYZ-Wings, a W-Wing and a UR, but it took an ER to open things up and finish.
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