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  Topic: Apr 09 VH
RobertRattley

Replies: 2
Views: 4405

PostForum: Daily Sudoku puzzles   Posted: Thu May 13, 2021 4:37 pm   Subject: Apr 09 VH
[quote="TomC"]r6c5 <> 1 as then two 9's in r56c1[/quote]

Correct. This means the puzzle is "hard", not "very hard".
  Topic: Mar 01 VH
RobertRattley

Replies: 1
Views: 5114

PostForum: Daily Sudoku puzzles   Posted: Tue Mar 03, 2020 2:08 pm   Subject: Mar 01 VH
xyz wing 258 and then xy wing 789
  Topic: Feb 10 VH
RobertRattley

Replies: 1
Views: 5291

PostForum: Daily Sudoku puzzles   Posted: Mon Feb 17, 2020 12:36 pm   Subject: Feb 10 VH
xy wing 569 pinching col 3 row 9 on 6;
the x wing;
xyz wing 568 pinching col 2 row 5 on 6
  Topic: Jan21VH
RobertRattley

Replies: 2
Views: 6139

PostForum: Daily Sudoku puzzles   Posted: Sun Jan 26, 2020 8:20 pm   Subject: Jan21VH
Clement's post is not to do with the 21 Jan VH.

Using only classic wings, I found 3 successive xy wings with the same 3 digits, 269!

The fulcrums are 29 in r6c8, 69 in r7c5 and finally 69 in r5c ...
  Topic: Jan 17 VH
RobertRattley

Replies: 2
Views: 6301

PostForum: Daily Sudoku puzzles   Posted: Sun Jan 19, 2020 3:43 pm   Subject: Re: JAN17VH
[quote="Earl"]345xywing@R5C6, -3R6C9

Early Earl[/quote]

But first you need x-wing 4 (rows 6 and 9) to eliminate 4 from row 5 col 9
  Topic: Jan 03 VH
RobertRattley

Replies: 1
Views: 5582

PostForum: Daily Sudoku puzzles   Posted: Sun Jan 12, 2020 6:38 am   Subject: Jan 03 VH
3 successive classic steps: xy wing 346, x wing 3, xy wing 147
  Topic: Dec 25 VH
RobertRattley

Replies: 1
Views: 5785

PostForum: Daily Sudoku puzzles   Posted: Mon Dec 30, 2019 7:16 pm   Subject: Dec 25 VH
Wonderful! A four step classic.
  Topic: Dec 16 VH
RobertRattley

Replies: 1
Views: 5683

PostForum: Daily Sudoku puzzles   Posted: Tue Dec 17, 2019 4:27 pm   Subject: Dec 16 VH
3 classic steps: x wing3, xy wing 367, xy wing 246
  Topic: Dec 12 VH
RobertRattley

Replies: 1
Views: 5645

PostForum: Daily Sudoku puzzles   Posted: Sat Dec 14, 2019 5:05 pm   Subject: Dec 12 VH
x wing 3 columns 3 and 7 eliminates three 3s from row 5
and sets up an
xy wing 146 pinching out two 1s.
Row 5 column 8 must be 1.
  Topic: Dec 06 VH
RobertRattley

Replies: 2
Views: 6594

PostForum: Daily Sudoku puzzles   Posted: Thu Dec 12, 2019 1:43 am   Subject: Dec 06 VH
x wing 7 (see rows 3 and 7) followed by
xy wing 267
  Topic: Nov 27 VH
RobertRattley

Replies: 1
Views: 5897

PostForum: Daily Sudoku puzzles   Posted: Mon Dec 02, 2019 1:06 pm   Subject: Nov 27 VH
3 classic steps: x wing 9, xy wing 458, xy wing 258
  Topic: Oct 31 VH
RobertRattley

Replies: 2
Views: 7024

PostForum: Daily Sudoku puzzles   Posted: Tue Nov 05, 2019 1:40 pm   Subject: Oct 31 VH
After the 3 x-wing there's an xy wing 139. Row 6 col 9 is not 1.
  Topic: Oct 08 VH
RobertRattley

Replies: 1
Views: 6092

PostForum: Daily Sudoku puzzles   Posted: Thu Oct 10, 2019 4:09 pm   Subject: Oct 08 VH
Alternative second step: xyz wing 579
  Topic: Sep 24 VH
RobertRattley

Replies: 1
Views: 6333

PostForum: Daily Sudoku puzzles   Posted: Sat Sep 28, 2019 5:03 am   Subject: Sep 24 VH
238 xy wing @ R2C5, -3R3C5
  Topic: Jul 21 VH
RobertRattley

Replies: 1
Views: 6025

PostForum: Daily Sudoku puzzles   Posted: Sun Jul 21, 2019 5:29 pm   Subject: Jul 21 VH
Using only traditional wings (and not permitting myself the UR)
I found I needed four successive xy wings!
  Topic: Jun 05 VH
RobertRattley

Replies: 1
Views: 6806

PostForum: Daily Sudoku puzzles   Posted: Sat Jun 15, 2019 5:11 pm   Subject: Jun 05 VH
Classic two steps:
xy wing 237
and later xy wing 138
  Topic: May 21 VH
RobertRattley

Replies: 1
Views: 5997

PostForum: Daily Sudoku puzzles   Posted: Tue May 21, 2019 5:54 pm   Subject: May 21 VH
You did not mess up.
This puzzle is "hard", not "very hard".
  Topic: Apr 18 VH
RobertRattley

Replies: 1
Views: 6394

PostForum: Daily Sudoku puzzles   Posted: Thu Apr 18, 2019 12:47 pm   Subject: Apr 18 VH
xy wing 156 pivot row 7 column 9: row 1 col 2 is not 5
pair 23 column 2: row 2's 2 must be in column 8.
  Topic: Mar 14 VH
RobertRattley

Replies: 2
Views: 7431

PostForum: Daily Sudoku puzzles   Posted: Thu Mar 14, 2019 11:45 am   Subject: Mar 14 VH
x wing 2 (columns 3 and 6) and then
xy wing 459 fulcrum row 2 col 5
  Topic: Mar 06 VH
RobertRattley

Replies: 1
Views: 6206

PostForum: Daily Sudoku puzzles   Posted: Wed Mar 06, 2019 1:01 pm   Subject: Mar 06 VH
xy wing 468 fulcrum row 8 col 5 sets row 8 col 4 = 9 and then
xyz wing 468 fulcrum row 8 col 2 sets row 9's 6 at col 5
 
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