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Puzzle 10/05/31: (C)

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854

PostPosted: Mon May 31, 2010 4:55 pm    Post subject: Puzzle 10/05/31: (C) Reply with quote

XYZ-Wing alert

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

Play this puzzle online at the Daily Sudoku site
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peterj



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

PostPosted: Tue Jun 01, 2010 1:47 pm    Post subject: Reply with quote

I was alert! But my path seemed to avoid xyz in favour of a pair of W's

Quote:
skyscraper(3); r2c56<>3, r3c7<>3
w-wing(19) (1=9)r9c3-r4c3=r4c1-(9=1)r3c1 transport -(1)r3c6=r5c6; r8c1<>1, r5c3<>1
w-wing(17) (1=7)r1c4-r1c8=r5c8-(7=1)r5c6; r6c4<>1, r3c6<>1
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tlanglet



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

PostPosted: Tue Jun 01, 2010 3:56 pm    Post subject: Reply with quote

Four steps.............

Quote:
Type 1 UR23 r28c56; r2c5<>23
w-wing 19 r3c1 & r9c3 SL9 r4c13; r8c1<>1
x-wing 1 r16c24; r58c2<>1
BUG+1 forces r1c7=7

Ted
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Marty R.



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

PostPosted: Thu Jun 03, 2010 5:07 am    Post subject: Reply with quote

Type 1 UR (23)
Type 2 UR (47-9)
UR (27), r4c7=3
W-Wing (19) plus pincer transport
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