dailysudoku.com Forum Index dailysudoku.com
Discussion of Daily Sudoku puzzles
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Search found 35 matches
dailysudoku.com Forum Index
Author Message
  Topic: VH+ 012724
glesco

Replies: 3
Views: 3150

PostForum: Other puzzles   Posted: Sun Jan 28, 2024 7:30 pm   Subject: VH+ 012724
I used an XY-chain to anchoured at r7c2 & r3c3 to eliminate 9 at r7c3.

Starting at r7c2 up c2, across r5, down c7, across r9, up c8, across r3 to r3c3.
  Topic: Jan 21 VH
glesco

Replies: 2
Views: 2013

PostForum: Daily Sudoku puzzles   Posted: Fri Jan 26, 2024 2:16 am   Subject: Jan 21 VH
Hi Greenvilleguy

That solution was in ZeroAssoluto's solutions. His solutions are hidden, but if you hold and shift in his solution box they become available. He calls a Y-wing an XY-wing but they ...
  Topic: VH++ 122123
glesco

Replies: 2
Views: 9369

PostForum: Other puzzles   Posted: Mon Dec 25, 2023 11:18 pm   Subject: VH++ 122123
I found a finned x-wing that eliminated 8 from r3c12. Basic steps thereafter. Hope I didn't make a mistake!
  Topic: VH++ 112923
glesco

Replies: 4
Views: 18392

PostForum: Other puzzles   Posted: Thu Dec 07, 2023 10:47 pm   Subject: VH++ 112923
I used a candidate colouring method that keys off bivalued cells though the solution is similar to dongraves. The steps I took:

- The 9s in c37 eliminate 9 in r8c9 in a finned x-wing thus creating ...
  Topic: VH++ 101323
glesco

Replies: 3
Views: 27576

PostForum: Other puzzles   Posted: Thu Oct 19, 2023 5:47 pm   Subject: VH++ 101323
I used a colouring technique.

In r1c3, I set the 5 to Green & the 8 to Blue. As 8 is a strong link in r1 so the 8 in r1c7 is Green with the 6 being Blue. In c2 the 5 is also a strong link so in ...
  Topic: Puzzle 11/06/05: ~ VH
glesco

Replies: 5
Views: 101366

PostForum: Puzzles by daj   Posted: Tue Jun 20, 2023 12:58 am   Subject: Puzzle 11/06/05: ~ VH
Going over these old puzzles.

Went got multiple 15 Remote Pairs on this one!
  Topic: 16-04-2023 VH
glesco

Replies: 5
Views: 27392

PostForum: Other puzzles   Posted: Sat Apr 22, 2023 9:06 pm   Subject: 16-04-2023 VH
Using my pen & pencil method, starting approximately where dongrave has the puzzle, I used the "3D Medusa" method. Starting with a base on Row 6, I eventually found a contradiction with ...
  Topic: 01-04-2023-vh+
glesco

Replies: 9
Views: 36566

PostForum: Other puzzles   Posted: Sun Apr 02, 2023 8:13 pm   Subject: 01-04-2023-vh+
Excellent puzzle! Didn't solve; going to try again.

Please post more if you have any!
  Topic: Apr 02 VH
glesco

Replies: 2
Views: 15926

PostForum: Daily Sudoku puzzles   Posted: Sun Apr 02, 2023 8:11 pm   Subject: Apr 02 VH
Not that challenging this time. I used an XY-Wing.
  Topic: VH++ 033123
glesco

Replies: 2
Views: 21363

PostForum: Other puzzles   Posted: Sat Apr 01, 2023 7:03 pm   Subject: VH++ 033123
fx-wing -3 r4c9
xy-chain -3 r4c2, r5c8
xy-wing -5 r4c2
  Topic: VH+ 030223
glesco

Replies: 4
Views: 27351

PostForum: Other puzzles   Posted: Fri Mar 10, 2023 7:57 pm   Subject: VH+ 030223
Several Steps:
I) X-wing removing 9s from r1c1, r9c1, r9c6
II) xy-chain with anchors at r8c2 & r9c7 removing 1s from r9c1, r8c7
III) Finned x-wing removing 1 from r5c9
IV) W-wing removing 3s f ...
  Topic: VH 121921
glesco

Replies: 4
Views: 32030

PostForum: Other puzzles   Posted: Wed Feb 22, 2023 6:46 pm   Subject: VH 121921
A w-wing with 6s in column 5 removes 9s from r8c4 & r4c6
  Topic: VH++ 021323
glesco

Replies: 4
Views: 24622

PostForum: Other puzzles   Posted: Tue Feb 14, 2023 8:06 pm   Subject: VH++ 021323
I used two steps:
An 246 xyz-wing removes 6 from r3c9.
An xy-chain with the ends at r9c8 & r3c9 removes 4 from r1c8
  Topic: VH+ 010723
glesco

Replies: 4
Views: 30060

PostForum: Other puzzles   Posted: Mon Jan 23, 2023 2:11 am   Subject: VH+ 010723
I used a chain of 8s anchored at r2c3 & r8c2 which removes 8s from r3c2 & r7c3. The later gives an 8 at r2c3 by virtue of column 3.

That led to a contradiction of 4s in box 7. That filled o ...
  Topic: Nov 25 VH
glesco

Replies: 2
Views: 9802

PostForum: Daily Sudoku puzzles   Posted: Fri Nov 25, 2022 6:46 pm   Subject: Nov 25 VH
I used a swordfish to remove 5 from r1c4
  Topic: VH+ 110222
glesco

Replies: 3
Views: 25905

PostForum: Other puzzles   Posted: Thu Nov 03, 2022 6:28 pm   Subject: VH+ 110222
I used a finned xwing to remove 7&8 from r8c5. Remote pairs also works.
A x-chain to remove 2 from r8c9
A xyz wing to remove 8 from r8c9
  Topic: Oct 19 VH
glesco

Replies: 1
Views: 7996

PostForum: Daily Sudoku puzzles   Posted: Wed Oct 19, 2022 10:58 pm   Subject: Oct 19 VH
I used an xwing on 4
A UR on 3&9
and the finned xwing on 7
  Topic: Extreme 103021
glesco

Replies: 4
Views: 34198

PostForum: Other puzzles   Posted: Thu Oct 13, 2022 7:04 pm   Subject: Extreme 103021
I used an xy-wing to eliminate 2s from r2c4, r1c7

Then an xy-chain anchored at r3c3 & r2c4 to eliminate 7 at r3c4
  Topic: VH+ 100822
glesco

Replies: 14
Views: 59384

PostForum: Other puzzles   Posted: Tue Oct 11, 2022 10:45 pm   Subject: VH+ 100822
dongrave,

Unfortunately I have thrown away my paper & pen sheet on this puzzle. Recalling best I can from reviewing your grid, I suspect I used a skyscraper on 2s from columns 3&4 which gi ...
  Topic: VH+ 100822
glesco

Replies: 14
Views: 59384

PostForum: Other puzzles   Posted: Mon Oct 10, 2022 9:41 am   Subject: VH+ 100822
dongrave,

I used an x-wing on columns 2&9 to eliminate 2s in r5c1 & other cells. Then (9=1)r5c1 - (1=2)r5c2 - (2=3)r5c9 - (3=9)r4c8 --> -9r4c1.
 
Page 1 of 2 Goto page 1, 2  Next
All times are GMT
Jump to:  


Powered by phpBB © 2001, 2005 phpBB Group