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  Topic: Aug 13 VH
tippwell

Replies: 9
Views: 42986

PostForum: Daily Sudoku puzzles   Posted: Thu Aug 13, 2009 6:09 am   Subject: Aug 13 VH
I didn't find Crunched's xyz wing without his help. I had noticed that R1C4 contained the only 1 in col 4, and this led to a 36 pair in col5 which gave some more simplification in rows 6 and 9.

XYZ ...
  Topic: Aug 11 VH
tippwell

Replies: 7
Views: 45319

PostForum: Daily Sudoku puzzles   Posted: Tue Aug 11, 2009 7:53 am   Subject: Aug 11 VH
and forgot to mention the 29 in box 9.
  Topic: Aug 11 VH
tippwell

Replies: 7
Views: 45319

PostForum: Daily Sudoku puzzles   Posted: Tue Aug 11, 2009 7:51 am   Subject: Aug 11 VH
I took the basics a bit further - only the one 9 in box 1 and only the one 7 in box 6. Then the w-wing.
  Topic: May 9 VH
tippwell

Replies: 6
Views: 30580

PostForum: Daily Sudoku puzzles   Posted: Sat May 09, 2009 9:49 pm   Subject: May 9 VH
So i didn't even need the x wing. (In theory!)
  Topic: May 9 VH
tippwell

Replies: 6
Views: 30580

PostForum: Daily Sudoku puzzles   Posted: Sat May 09, 2009 9:05 am   Subject: May 9 VH
Crunched
Taking out that 6 means that the sixes in col 5 in box 2 disappear, and the remaining 58 in row 1 col 5 can find the other 2 components easy enough
  Topic: 5 Jan VH
tippwell

Replies: 3
Views: 23663

PostForum: Daily Sudoku puzzles   Posted: Sun Jan 04, 2009 9:09 pm   Subject: 5 Jan VH
X wing on 3s?
  Topic: Wednesday, April 10, 2008 Hard not Easy
tippwell

Replies: 11
Views: 48163

PostForum: Daily Sudoku puzzles   Posted: Sat Apr 12, 2008 10:12 am   Subject: Wednesday, April 10, 2008 Hard not Easy
and now noticed there was only one 3 in column 4 (in box 2).
  Topic: Wednesday, April 10, 2008 Hard not Easy
tippwell

Replies: 11
Views: 48163

PostForum: Daily Sudoku puzzles   Posted: Sat Apr 12, 2008 9:28 am   Subject: Wednesday, April 10, 2008 Hard not Easy
somewhere I got the impression that URs use the fact that the solution should be unique (but conceivably it might not be) so I try to avoid them. Or is this being pedantic?

in Marty's layout, in bo ...
  Topic: sept 19
tippwell

Replies: 26
Views: 126286

PostForum: Daily Sudoku puzzles   Posted: Wed Sep 19, 2007 10:03 am   Subject: sept 19
45 in r9c6 along with r7c4 and r9c7 eliminates some 8s in boxes 8 and 9
 
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