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Puzzle 11/02/18 Extreme

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Fri Feb 18, 2011 6:41 pm    Post subject: Puzzle 11/02/18 Extreme Reply with quote
If this puzzle proves too easy, I'll find a replacement.

Code:
 +-----------------------+
 | 4 . 8 | . . 5 | 7 . . |
 | . . . | 9 . 7 | . . . |
 | 7 . 6 | . 2 4 | . 8 . |
 |-------+-------+-------|
 | . 2 . | . . 8 | . . . |
 | . . 7 | . 1 . | . . . |
 | 6 8 1 | 4 . 2 | 3 9 . |
 |-------+-------+-------|
 | 8 . . | . . 9 | . 7 . |
 | . . 2 | . . 6 | 8 4 . |
 | . . . | . . . | . . 6 |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Fri Feb 18, 2011 7:14 pm    Post subject: Reply with quote
Lots of things going on with 5s, three wings but one needing transport...
Quote:
w-wing(57) with transport ; (5=7)r8c4 - r4c4=r4c9 - (7=5)r6c9 - r3c9=r3c2 ; r8c2<>5
w-wing(35) ; (5=3)r2c3 - r4c3=r4c1 - (3=5)9c1 ; r7c3<>5
xy-wing(35-4) r2c3 ; r4c9<>4
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Sat Feb 19, 2011 5:29 am    Post subject: Reply with quote
Multi-coloring (5)
W-Wing (35)
X-Wing (5)
W-Wing (56)
BUG+1, or XY-Wing or XY-Chain
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