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MM Diabolical - June 4, 2006

 
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keith



Joined: 19 Sep 2005
Posts: 3162
Location: near Detroit, Michigan, USA

PostPosted: Mon Jun 05, 2006 10:02 pm    Post subject: MM Diabolical - June 4, 2006 Reply with quote

Tracy, Marty, et al:

You may enjoy this one:
Code:

Puzzle: MM060406 Diabolical
+-------+-------+-------+
| . . . | 1 . 8 | . . . |
| . 5 . | . . . | . . . |
| 6 . 2 | . . . | 1 . 9 |
+-------+-------+-------+
| . 3 . | 7 . 1 | . 5 2 |
| 4 . . | . . . | . . . |
| 2 8 . | 4 . 6 | . 7 . |
+-------+-------+-------+
| 8 . . | . . . | 5 . 1 |
| . . . | . . . | . 3 . |
| . . . | 9 . 2 | . . . |
+-------+-------+-------+

http://www.sudoku.org.uk/DailySudoku.asp?day=04/06/2006

Since it was posted by me, you do not have to think too hard about what it may involve!

Best wishes,

Keith


Last edited by keith on Sat Jun 17, 2006 11:19 am; edited 1 time in total
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ravel



Joined: 21 Apr 2006
Posts: 536

PostPosted: Tue Jun 06, 2006 10:16 am    Post subject: Reply with quote

Nice! I had 2 UR type 1, and a UR 37 with strong link in r37c56, which eliminates a 3, so that a BUG+1 remains Smile
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Marty R.



Joined: 12 Feb 2006
Posts: 5148
Location: Rochester, NY, USA

PostPosted: Tue Jun 06, 2006 9:30 pm    Post subject: Reply with quote

Thanks, I like a puzzle from a different source than what I usually do.

I saw the 37 rectangle, but don't recall why I didn't use it. The first one I used involved 68, a Type 4. Later, I had a 24 and 34, both Type 1.

After I'd gone as far as I could with basic stuff, I thought I had my first-ever BUG or BUG+1, whatever it's called, but then I noticed a second three-candidate cell.

I looked for, but couldn't find, strong links and coloring, so I started a chain, one of the values led to a contradiction, and solving that cell finished things off.
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