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Puzzle 10/07/19: XY

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854

PostPosted: Mon Jul 19, 2010 4:02 am    Post subject: Puzzle 10/07/19: XY Reply with quote

Basics are again part of the puzzle.

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

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: Mon Jul 19, 2010 1:06 pm    Post subject: Reply with quote

One stepper............

Quote:
6-cell ADP (25)r389c156 r3c5=4, r8c5=6 or r9c6=1 to prevent the DP
(4)r3c5-(4=5)r3c2-r5c2=(5)r6c3; r6c4<>5
(6)r8c5-(6=5)r8c4; r6c4<>5
(1)r9c6-(1=5)r4c6; r6c4<>5

Ted
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peterj



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

PostPosted: Mon Jul 19, 2010 5:00 pm    Post subject: Reply with quote

Another m-wing+ ...
Quote:

gm-wing(89) with psuedo-cell (8=5)r5c8-(5=9)r5c2 - r5c6=(9-8)r6c5=r6c1; r5c1<>8
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tlanglet



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

PostPosted: Mon Jul 19, 2010 5:51 pm    Post subject: Reply with quote

peterj wrote:
Another m-wing+ ...
Quote:

gm-wing(89) with psuedo-cell (8=5)r5c8-(5=9)r5c2 - r5c6=(9-8)r6c5=r6c1; r5c1<>8


Peter, you have that gm-wing step down pat.

Ted
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daj95376



Joined: 23 Aug 2008
Posts: 3854

PostPosted: Mon Jul 19, 2010 5:56 pm    Post subject: Reply with quote

Now it almost looks like a gM-Wing chain!

(8=5=9)r5c82 - r5c6 = (9-8)r6c5 = r6c1; r5c1<>8
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peterj



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

PostPosted: Mon Jul 19, 2010 6:04 pm    Post subject: Reply with quote

tlanglet wrote:

Peter, you have that gm-wing step down pat.

It's just a phase I am going through! Though they do seem quite common.
I really need to catch up with you all on DP moves.. I just dont see them other than "in your face" URs.
Peter
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ronk



Joined: 07 May 2006
Posts: 398

PostPosted: Mon Jul 19, 2010 7:33 pm    Post subject: Reply with quote

daj95376 wrote:
Now it almost looks like a gM-Wing chain!

(8=5=9)r5c82 - r5c6 = (9-8)r6c5 = r6c1; r5c1<>8

A generalized general, I presume. Very Happy
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