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Puzzle 10/04/17 (B)

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Sat Apr 17, 2010 6:00 pm    Post subject: Puzzle 10/04/17 (B) Reply with quote
Code:
 +-----------------------+
 | 2 . 8 | . . . | . 4 . |
 | . 5 1 | . . . | . . . |
 | 4 6 . | 2 . . | 5 . 1 |
 |-------+-------+-------|
 | . . 6 | . . . | 4 . 5 |
 | . . . | . 4 . | 8 3 6 |
 | . . . | . . 6 | . . . |
 |-------+-------+-------|
 | . . 5 | 8 7 . | 6 . 2 |
 | 6 . . | . 2 . | . . 3 |
 | . . 2 | 6 5 . | 1 8 . |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Sat Apr 17, 2010 10:23 pm    Post subject: Reply with quote
Three steps.

Quote:
kite 9 with hinge in b7; r3c6<>9,
xy-wing 35-9 with vertex 35 in r6c4 and pseudocell 39 in r68c3; r8c4<>9,
xy-wing -349 with vertex 49 in r8c3; r46c2<>3.

Ted
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Sat Apr 17, 2010 10:32 pm    Post subject: Reply with quote
Felt there was a quicker way - but took me four...

Quote:
xy-wing(349); r46c2<>3
Colouring(9); r3c6<>9
x-wing(9)
BUG+1
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Sat Apr 17, 2010 11:12 pm    Post subject: Reply with quote
If we want fewer steps, here is a two stepper.

Quote:
xy-wing -349 with vertex 49 in r8c3; r46c2<>3,
xy-wing 2-59 with vertex 29 in r4c2 and a 3-cell pseudocell 25 in r6c234; r5c4|r6c1<>5 to complete the puzzle.

Ted
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Sun Apr 18, 2010 4:54 pm    Post subject: Reply with quote
XY-Wing (493) + pincer transport
XY-Chain
Another chain which I think is an AIC
BUG+2
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