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Puzzle 10/10/24: C XY

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Sun Oct 24, 2010 1:12 am    Post subject: Puzzle 10/10/24: C XY Reply with quote
Probably difficult.

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

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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Sun Oct 24, 2010 1:59 pm    Post subject: Reply with quote
Two steps...
Quote:
m-wing-style(37) "pseudocell" ; (7=6)r1c4-(6=3)r3c5 - r3c8=(3-7)r8c8=r9c7 ; r9c4<>7
skyscraper(6) r5, r7 ; r6c9<>6, r8c8<>6
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Sun Oct 24, 2010 3:14 pm    Post subject: Reply with quote
Also two steps..........

Quote:
Flightless w-wing (36) plus transport: (6=3)r3c5-r3c8=r8c8-(3=6)r7c9-r9c7=(6)r1c7; r1c4,r3c8<>6
Flightless xy-wing 3-56 vertex (36)r8c8 with pseudocell (56)r45c8 plus transport: (5)r4c8-r6c9=(5)r6c3; r8c3<>5

Ted
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Mon Oct 25, 2010 4:51 am    Post subject: Reply with quote
DP (58) boxes 46, r45c1<>6 due to invalidity
Coloring (6), r9c46<>6
XY-Chain, r1c4<>6
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