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  Topic: We really miss these squiggly sudokus
peter urhegyi

Replies: 0
Views: 9377

PostForum: Other puzzles   Posted: Thu Apr 11, 2024 8:08 am   Subject: We really miss these squiggly sudokus
https://github.com/Urhegyi/Sudoku-Uploads/raw/main/candidate.png
  Topic: squigglies
peter urhegyi

Replies: 7
Views: 15879

PostForum: Daily Sudoku puzzles   Posted: Sun Mar 03, 2024 7:54 am   Subject: squigglies
Where are the squiggly sudokus for this month of March?
  Topic: monster puzzle back for 1 day 29-02-2024
peter urhegyi

Replies: 0
Views: 9321

PostForum: Other puzzles   Posted: Wed Feb 28, 2024 10:32 pm   Subject: monster puzzle back for 1 day 29-02-2024
There was 1 puzzle in the monster collection which was never solved as it has multiple solutions (28-11-2005). I decided to fix it with adding 2 more clues so that it has a unique solution and has a v ...
  Topic: daily jigsaw I created myself
peter urhegyi

Replies: 4
Views: 26429

PostForum: Other puzzles   Posted: Fri Jan 19, 2024 4:56 pm   Subject: After a long time a new one:
A jigsaw sudoku solvable with as hardest step an x-wing.
https://github.com/Urhegyi/Sudoku-Uploads/raw/main/recently.png
  Topic: daily jigsaw I created myself
peter urhegyi

Replies: 4
Views: 26429

PostForum: Other puzzles   Posted: Sun Oct 15, 2023 6:18 am   Subject: daily jigsaw I created myself
Thank you for solving my jigsaw puzzle.
Yes, the x-wing was necessary and did the trick.

Nice to hear you had as much fun solving it as I had creating it.

Peter
  Topic: daily jigsaw I created myself
peter urhegyi

Replies: 4
Views: 26429

PostForum: Other puzzles   Posted: Thu Oct 12, 2023 8:58 am   Subject: daily jigsaw I created myself
any candidates to testsolve this?

https://github.com/Urhegyi/Sudoku-Uploads/raw/main/hungry.png
  Topic: How many xy-wings needed to solve this sudoku?
peter urhegyi

Replies: 1
Views: 23696

PostForum: Other puzzles   Posted: Sun Sep 24, 2023 10:40 am   Subject: How many xy-wings needed to solve this sudoku?

+-------+-------+-------+
| 1 . . | . 8 . | . . . |
| . . 5 | 4 . . | . . 6 |
| . . . | . . 2 | . 7 . |
+-------+-------+-------+
| . . 8 | . 5 . | . 9 . |
| 2 . . | . . 3 | 6 . . |
| . 6 . | ...
  Topic: 12-07-2023-daily-VH
peter urhegyi

Replies: 2
Views: 43956

PostForum: Other puzzles   Posted: Sun Jul 16, 2023 7:00 am   Subject: Re: 12-07-2023-daily-VH

+-------+-------+-------+
| . . 6 | . . . | 2 . . |
| . 2 . | 4 . 7 | . 3 . |
| 3 . . | . . . | . . 1 |
+-------+-------+-------+
| . 4 . | 7 . 2 | . 9 . |
| . . . | . . . | . . . |
| . 8 . | ...
  Topic: 12-07-2023-daily-VH
peter urhegyi

Replies: 2
Views: 43956

PostForum: Other puzzles   Posted: Wed Jul 12, 2023 7:15 pm   Subject: 12-07-2023-daily-VH

+-------+-------+-------+
| . . 6 | . . . | 2 . . |
| . 2 . | 4 . 7 | . 3 . |
| 3 . . | . . . | . . 1 |
+-------+-------+-------+
| . 4 . | 7 . 2 | . 9 . |
| . . . | . . . | . . . |
| . 8 . | ...
  Topic: 16-04-2023 VH
peter urhegyi

Replies: 5
Views: 38071

PostForum: Other puzzles   Posted: Sun Apr 16, 2023 9:47 pm   Subject: 16-04-2023 VH
A sudoku as I like to see more in the daily sudokus. Only X,XY,XYZ wings, but this time a lot of them:

+-------+-------+-------+
| 6 . . | . . 2 | . . . |
| . 2 . | . . . | . 5 . |
| . . 3 | . 5 ...
  Topic: 01-04-2023-vh+
peter urhegyi

Replies: 9
Views: 50615

PostForum: Other puzzles   Posted: Sat Apr 01, 2023 9:53 am   Subject: 01-04-2023-vh+

+-------+-------+-------+
| 9 . . | . 2 . | . . . |
| . 1 . | . . . | . 6 . |
| . . 2 | 7 . . | . . 4 |
+-------+-------+-------+
| . . 1 | . . . | 9 . . |
| . . . | . 4 . | . . 5 |
| . 5 . | ...
  Topic: Mar 09 VH?
peter urhegyi

Replies: 1
Views: 11729

PostForum: Daily Sudoku puzzles   Posted: Thu Mar 09, 2023 5:36 pm   Subject: Re: Mar 09 VH?
This one looks like it can be solved using just basics.confirmed
  Topic: too hard for draw and play function?
peter urhegyi

Replies: 4
Views: 42618

PostForum: Other puzzles   Posted: Wed Jul 27, 2022 5:24 pm   Subject: too hard for draw and play function?

+-------+-------+-------+
| 9 . . | . . . | . . . |
| . . 8 | . . . | . . 3 |
| . . . | . . 2 | 7 . . |
+-------+-------+-------+
| . . . | 7 . . | 6 . 5 |
| . . 3 | 9 . . | 1 . 4 |
| 2 . . | ...
  Topic: Jan 22 VH
peter urhegyi

Replies: 10
Views: 24146

PostForum: Daily Sudoku puzzles   Posted: Mon Jan 24, 2022 9:09 am   Subject: 5 step daily sudoku 22-01-2022
Dongrave found 4 of the 5 steps:
1)x-wing on 9's in cols 1&4
2)x-wing on 3's in cols 4&7
3)xyz-wing 578 with pivot at R6C7 (R4C7!=5)
4)xy-wing 58-3 with pivot at R4C5 (R4C4!=3 and R5C8!=3) ...
  Topic: Sep 25 VH
peter urhegyi

Replies: 7
Views: 22774

PostForum: Daily Sudoku puzzles   Posted: Mon Sep 27, 2021 7:30 am   Subject: daily sudoku 25-09-2021
I found 3 xy-wings to start(2 of them are needed).
After this an x-wing and an xyz-wing eliminating 2 candidates from R2C6 leads to a triple in row 2 and further solves with basics.
  Topic: very hard rated by draw and play
peter urhegyi

Replies: 5
Views: 23220

PostForum: Other puzzles   Posted: Wed Aug 25, 2021 9:35 pm   Subject: very hard rated by draw and play
I think this must be a mistake by the internal rating function. It doesn't need any vh step.

+-------+-------+-------+
| 1 . . | . . 7 | 9 . 4 |
| . 3 . | . 8 . | . . . |
| . . . | . . 6 | . 2 . ...
  Topic: 14-08-21-vh+
peter urhegyi

Replies: 2
Views: 14555

PostForum: Other puzzles   Posted: Sat Aug 14, 2021 6:01 am   Subject: 14-08-21-vh+

+-------+-------+-------+
| . . . | . . . | 1 . 3 |
| . 6 . | 9 . 3 | . 4 . |
| 5 . . | . . . | . . . |
+-------+-------+-------+
| . . . | 5 . 4 | . 9 . |
| 2 . 8 | . . . | . . . |
| . 5 . | ...
  Topic: Jun 28 VH
peter urhegyi

Replies: 5
Views: 19272

PostForum: Daily Sudoku puzzles   Posted: Tue Jun 29, 2021 7:37 am   Subject: Daily sudoku Jun 28 VH
In case anyone will try the classical solution with only xy(z) wings requires 2 xyz-wings and 2 xy-wings that are all necessary to solve.
  Topic: May 24 VH?
peter urhegyi

Replies: 3
Views: 19799

PostForum: Daily Sudoku puzzles   Posted: Mon May 24, 2021 6:12 pm   Subject: May 24 VH?
Solved with only basic techniques.
  Topic: Feb 16 not VH at all
peter urhegyi

Replies: 11
Views: 34155

PostForum: Daily Sudoku puzzles   Posted: Tue Feb 16, 2021 9:46 pm   Subject: Feb 16 not VH at all
The swordfish is the three rows/columns equivalent of the x-wing with only two rows/columns. I've looked to a few daily puzzles published in the last years and found only two of them where swordfishes ...
 
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