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  Topic: No puzzle for 2 days
hughwill

Replies: 27
Views: 65251

PostForum: Daily Sudoku puzzles   Posted: Sat Apr 23, 2022 9:55 am   Subject: No puzzle for 2 days
I can't get a puzzle here, yesterday or today- error message pops up.

Anyone else got the problem?
  Topic: 13-Feb-2022 VH
hughwill

Replies: 8
Views: 20835

PostForum: Daily Sudoku puzzles   Posted: Tue Mar 01, 2022 10:21 am   Subject: 13-Feb-2022 VH
Never away.
Just quiet!
  Topic: 13-Feb-2022 VH
hughwill

Replies: 8
Views: 20835

PostForum: Daily Sudoku puzzles   Posted: Mon Feb 14, 2022 9:14 am   Subject: Feb 13 VH
Following the X wing on <2> in c19, then r8c6 = <14> this creates a <14> pair in box 8 and sets r2c4=1 and solves the puzzle

Yes true. I was put off by the reluctance of the 'Grad ...
  Topic: 13-Feb-2022 VH
hughwill

Replies: 8
Views: 20835

PostForum: Daily Sudoku puzzles   Posted: Sun Feb 13, 2022 10:45 am   Subject: 13-Feb-2022 VH

+-------------+-----------------+-------------+
| 9 67 1 | 25 478 2458 | 48 26 3 |
| 8 5 4 | 12 3 6 | 12 9 7 |
| 3 67 2 | 9 1478 148 | 48 16 5 |
+- ...
  Topic: Sep 25 VH
hughwill

Replies: 7
Views: 19654

PostForum: Daily Sudoku puzzles   Posted: Sun Sep 26, 2021 11:14 am   Subject: 25 Sep 'VH'
Surprised no posts. This one was one of the most complicated VHs I've come across!
  Topic: Jul 06 VH
hughwill

Replies: 10
Views: 26193

PostForum: Daily Sudoku puzzles   Posted: Wed Jul 07, 2021 12:36 pm   Subject: Jul 6 VH
Yes the X wing on 1s r18 -1r6c3 solves it in one.

As does the UR on 47 r46 r6c1=1
  Topic: Feb 16 not VH at all
hughwill

Replies: 11
Views: 30457

PostForum: Daily Sudoku puzzles   Posted: Wed Feb 17, 2021 10:54 am   Subject: 16 Feb 'VH'
It wasn't VH

It happens from time to time on this algorithm.

I've though about looking at examples to see what the common factor is, but I have decided that life is too short.
  Topic: Jan 2 VH
hughwill

Replies: 3
Views: 16043

PostForum: Daily Sudoku puzzles   Posted: Sat Jan 02, 2021 5:32 pm   Subject: Jan 2 VH
I make it that the first xy wing takes you to here:


+--------+-------------+----------+
| 7 1 5 | 4 6 9 | 2 8 3 |
| 9 4 2 | 5 38 38 | 1 7 6 |
| 3 8 6 | 2 7 1 | 59 59 4 ...
  Topic: The Passing of MartyR
hughwill

Replies: 7
Views: 54542

PostForum: General discussion   Posted: Tue Apr 28, 2020 8:42 am   Subject: Marty R
Sad to hear of this.

A true gentleman (the finest praise we Brits can offer!).
  Topic: June 19 VH
hughwill

Replies: 1
Views: 12720

PostForum: Daily Sudoku puzzles   Posted: Wed Jun 19, 2019 9:07 am   Subject: June 19 VH
Not VH.

Again
  Topic: May23VH
hughwill

Replies: 1
Views: 12763

PostForum: Daily Sudoku puzzles   Posted: Thu May 23, 2019 9:52 pm   Subject: May23VH
Yep. 2 in a row.
  Topic: Nov 30 NVH
hughwill

Replies: 4
Views: 19361

PostForum: Daily Sudoku puzzles   Posted: Fri Nov 30, 2018 10:21 am   Subject: Nov 30 NVH

+--------------+-----------+------------------+
| 6 5 9 | 4 2 8 | 1 3 7 |
| 3 2 8 | 1 5 7 | 469 69 46 |
| 4 1 7 | 9 6 3 | 58 2 58 |
+- ...
  Topic: Nov 26 VH
hughwill

Replies: 2
Views: 15188

PostForum: Daily Sudoku puzzles   Posted: Mon Nov 26, 2018 11:40 am   Subject: Nov 26 VH
After 2 VHs which were solvable by basics, I think we've got one
that is a 4 stepper needing all 3 VH techniques!


+-------------+--------------+----------+
| 8 12 59 | 3 25 7 | 4 1 ...
  Topic: Nov 24 VH
hughwill

Replies: 2
Views: 15467

PostForum: Daily Sudoku puzzles   Posted: Sun Nov 25, 2018 9:57 am   Subject: NOV 24VH

+---------------+------------------+---------------+
| 2578 6 2578 | 4578 24578 9 | 128 1235 138 |
| 2578 9 3 | 1 2578 578 | 28 6 4 |
| 258 4 1 | 58 6 3 | ...
  Topic: Nov 01 VH
hughwill

Replies: 1
Views: 12965

PostForum: Daily Sudoku puzzles   Posted: Thu Nov 01, 2018 9:41 am   Subject: Nov 1 VH
Instead of W wing in Gianni's solution, you can substitute 469 XYZ-wing
pivot r9c2 relieving r7c2 of its 9. Then the 9 X-wing appears to crack the
puzzle.
  Topic: Jul 29 NVH
hughwill

Replies: 0
Views: 12677

PostForum: Daily Sudoku puzzles   Posted: Sun Jul 29, 2018 9:52 am   Subject: Jul 29 NVH

+---------------+----------+---------------+
| 7 14 149 | 5 2 8 | 16 3 469 |
| 2 3 14 | 9 6 7 | 5 148 48 |
| 8 6 5 | 1 4 3 | 27 27 279 |
+------------- ...
  Topic: 6 May Hard(?)
hughwill

Replies: 2
Views: 16502

PostForum: Daily Sudoku puzzles   Posted: Mon May 07, 2018 7:41 am   Subject: 6 May Hard(?)
Hi hugh,

if you look at Row 5, you can see that the number 8 is only in r5c4.
This brings you to the solution

Ciao Gianni

Grazie mille, Gianni
  Topic: 6 May Hard(?)
hughwill

Replies: 2
Views: 16502

PostForum: Daily Sudoku puzzles   Posted: Sun May 06, 2018 10:17 am   Subject: 6 May Hard(?)

+---------------+-------------+-------------+
| 67 8 67 | 5 39 2 | 4 1 39 |
| 25 25 9 | 47 346 1 | 36 8 367 |
| 1 3 4 | 79 8 69 | 5 29 2679 |
+--------- ...
  Topic: Apr 29 VH
hughwill

Replies: 5
Views: 26217

PostForum: Daily Sudoku puzzles   Posted: Sun Apr 29, 2018 9:09 am   Subject: Apr 29 VH
Urgh! A VH solved by an X wing.
X-Wing on 7 c67 -7r8c6 r8c8=3 stte
Also another much less interesting UR than Marty's 17 r34 r6c2=7 stte
  Topic: Mar 28 VH
hughwill

Replies: 3
Views: 20141

PostForum: Daily Sudoku puzzles   Posted: Wed Mar 28, 2018 2:24 pm   Subject: Mar 28 VH
I think Gianni's second 'W wing' is a bit more complex. Obviously if r3c3=2: r7c3=8 and r7c8=2. What the 'W wing' on r1 shows is that r3c3 and r7c8 can't both be 2 so therefore both must be 8. Don't ...
 
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