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Puzzle 11/04/16: ~ Difficult BBDB

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daj95376

Joined: 23 Aug 2008
Posts: 3854

Posted: Sat Apr 16, 2011 9:57 am Post subject: Puzzle 11/04/16: ~ Difficult BBDB

Code:

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

Play this puzzle online at the Daily Sudoku site

peterj

Joined: 26 Mar 2010
Posts: 974
Location: London, UK

Posted: Sun Apr 17, 2011 7:31 am Post subject:

Two moves - the second looped wing does some damage Smile

Quote:

w-wing(23) (2=3)r2c3 - r4c3=r4c9 - (3=2)r6c8 ; r2c8<>2
w-wing/loop(39) transport ; (3=9)r7c3 - r7c9=r1c9 - (9=3)r2c8 and - r2c2=r8c2 - loop ; r7c8<>3, r789c1<>3, r89c3<>3, r7c18<>9, r13c8<>9

Marty R.

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

Posted: Mon Apr 18, 2011 1:09 am Post subject:

I needed a couple of XY-Wings, a W-Wing and Medusa wrap.

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