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  Topic: Could use some help
shoeless

Replies: 6
Views: 30963

PostForum: Other puzzles   Posted: Wed Nov 13, 2019 5:42 pm   Subject: Could use some help
Hi shoeless,

A.I.C. in r3c5,
if r3c5=7 then r5c5=9 r4c6=1 r4c7=4 r3c7=1 r3c2=7 and too many 7 in row 3
so r3c5=9

Ciao Gianni

Thanks, that broke it free alright. Out of curiosity, how did y ...
  Topic: Could use some help
shoeless

Replies: 6
Views: 30963

PostForum: Other puzzles   Posted: Tue Nov 12, 2019 9:04 pm   Subject: Could use some help
Thanks, that helped me get a bit further to here. I'm thinking I should just move on to another puzzle. Laughing


+------------+----------------+----------------+
| 29 5 17 | 8 4 279 | ...
  Topic: Could use some help
shoeless

Replies: 6
Views: 30963

PostForum: Other puzzles   Posted: Fri Nov 08, 2019 6:35 pm   Subject: Could use some help
Anybody see a good next step in this one?


+---------------+----------------+-----------------+
| 29 5 17 | 8 4 279 | 3 6 127 |
| 234 8 347 | 1 6 237 | 47 9 ...
  Topic: Aug 5 VH
shoeless

Replies: 3
Views: 14953

PostForum: Daily Sudoku puzzles   Posted: Sun Aug 05, 2012 8:21 pm   Subject: Aug 5 VH
Swordfish got rid of some 7's, but I'm still stuck here


+-----------+--------+----------+
| 78 48 2 | 9 1 5 | 47 6 3 |
| 6 9 47 | 3 2 8 | 1 47 5 |
| 1 3 5 | 6 7 4 | 2 8 9 | ...
  Topic: Sept 25 VH
shoeless

Replies: 12
Views: 39187

PostForum: Daily Sudoku puzzles   Posted: Thu Sep 27, 2007 1:03 pm   Subject: Sept 25 VH
Thanks guys...I just wasn't seeing it. Once you get rid of the 3's in C6 it solves pretty easily.
  Topic: Sept 25 VH
shoeless

Replies: 12
Views: 39187

PostForum: Daily Sudoku puzzles   Posted: Wed Sep 26, 2007 8:19 pm   Subject: Sept 25 VH
I can't even get that far...how did you get rid of the 4's & 7's in the 4th row? I'm stuck here:


+----------------+---------------+-------------+
| 125679 8 23 | 3679 1679 137 | 4 1569 ...
  Topic: Blast from the past, 2/17/07 VH
shoeless

Replies: 13
Views: 45988

PostForum: Daily Sudoku puzzles   Posted: Thu Aug 09, 2007 7:30 pm   Subject: Blast from the past, 2/17/07 VH
nataraj,

Thanks! I caught the 8's on row 6 shortly after I made my post. It was the 79-57-59 xy wing that was eluding me. It fell into place once you pointed that out. In general, how do you sp ...
  Topic: Blast from the past, 2/17/07 VH
shoeless

Replies: 13
Views: 45988

PostForum: Daily Sudoku puzzles   Posted: Thu Aug 09, 2007 3:36 pm   Subject: Blast from the past, 2/17/07 VH

As Asellus said, this is known by many names and it's a common occurrence in many puzzles, though not always useful. It is two strongly linked chains on <7> (one marked A-a, one marked B-b) ...
  Topic: Blast from the past, 2/17/07 VH
shoeless

Replies: 13
Views: 45988

PostForum: Daily Sudoku puzzles   Posted: Thu Aug 09, 2007 2:46 pm   Subject: Blast from the past, 2/17/07 VH
I agree, nataraj's explanation of the logic was clear and made sense. It's always easy to see that stuff when someone points it out, but recognizing those patterns in the first place....that's where ...
  Topic: Blast from the past, 2/17/07 VH
shoeless

Replies: 13
Views: 45988

PostForum: Daily Sudoku puzzles   Posted: Wed Aug 08, 2007 6:16 pm   Subject: Blast from the past, 2/17/07 VH
nataraj,

Thanks for the tip on the naked quad. Other than eliminating a few candidates on r6, it didn't really get me over the hump. When you say "business in 2", do you mean box 2? If ...
  Topic: Blast from the past, 2/17/07 VH
shoeless

Replies: 13
Views: 45988

PostForum: Daily Sudoku puzzles   Posted: Wed Aug 08, 2007 1:05 pm   Subject: Blast from the past, 2/17/07 VH
Looked through the forum to see if this one had come up before, but there seems to be a big gap from about 10/06 to 5/07. Question

Anyway, I'm stuck on this one...


+-----------+---------------+-- ...
  Topic: Aug 3 VH
shoeless

Replies: 37
Views: 94193

PostForum: Daily Sudoku puzzles   Posted: Sun Aug 05, 2007 3:54 am   Subject: Aug 3 VH
Welcome shoeless!

You can eliminate 2 from r4c5 using the xy-wing pivoted on (19) in r5c5 with pincers r2c5 and r4c6.

Steve

Thanks Steve, that's what I needed. Amazing how obvious it is whe ...
  Topic: Aug 3 VH
shoeless

Replies: 37
Views: 94193

PostForum: Daily Sudoku puzzles   Posted: Fri Aug 03, 2007 6:34 pm   Subject: Aug 3 VH
Ok...I've been staring at this for a while, but I'm obviously missing something. I don't fully get XY chains, but XY and XYZ wings make sense to me. In any case, I solved the puzzle to this point.
...
 
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