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 

Puzzle 10/05/20: (C) VH+

 
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Puzzles by daj
View previous topic :: View next topic  
Author Message
daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Thu May 20, 2010 8:01 pm    Post subject: Puzzle 10/05/20: (C) VH+ Reply with quote
Maybe this puzzle will need more than one step.

Code:
 +-----------------------+
 | . . . | . . . | . . . |
 | . . . | 3 1 . | . . 9 |
 | . . . | . 2 9 | 3 . 1 |
 |-------+-------+-------|
 | . 6 . | . . . | 7 . 5 |
 | . 1 5 | . 4 7 | 9 . . |
 | . . 9 | . 3 1 | . . . |
 |-------+-------+-------|
 | . . 6 | 2 9 . | . . . |
 | . . . | . . . | . 6 3 |
 | . 3 1 | 4 . . | . 9 8 |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site
Back to top
View user's profile Send private message
Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Fri May 21, 2010 1:17 am    Post subject: Reply with quote
I certainly needed more than one step.

Quote:
Coloring (2)
ER (2)
Hidden UR (19)
Type 1 UR (89)
Multi-coloring (9)
Back to top
View user's profile Send private message
peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Fri May 21, 2010 11:14 am    Post subject: Reply with quote
Me too - a lot of VH steps - I must have missed the VH+ one. Starting with a veritable metropolis!

Quote:
skyscraper(4); r12c7<>4, r7c8<>4
skyscraper(5); r2c1<>5, r8c2<>5
xy-wing(457); r1c9<>4
x-wing(5); r2c7<>5, r9c57<>5
xy-wing(678); r1c7<>8

Marty, looks like we are almost doing different puzzles - didn't see your steps at all!!
Back to top
View user's profile Send private message
tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Fri May 21, 2010 2:28 pm    Post subject: Reply with quote
Three steps .............

Quote:
skyscraper 4 r38c2; r12c7, r7c8<>4,
xy-wing -457 with vertex 57 in r7c8; r1c9<>4 plus transport: (4)r7c9 - r7c1 = (4)r8c2; r3c2<>4,
xy-wing 5-67 with vertex 57 in r2c8; r1c5, r2c7<>6

Ted
Back to top
View user's profile Send private message
daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Fri May 21, 2010 2:42 pm    Post subject: Reply with quote
peterj wrote:
I must have missed the VH+

turbot fish are a subset of VH+

Code:
===== ===== ===== ===== Ratings are Accumulative in Techniques ===== ===== =====

Basics:  Naked/Hidden Single, Naked Pair/Triple, Locked Candidates 1/2

Basics+: Naked Quad, Hidden Pair/Triple/Quad

VH:      BUG+1, UR Type 1, X-Wing, XY-Wing

turbot:  2-String Kite, Skyscraper, Empty Rectangle, finned/Sashimi X-Wing
VH+:     Remote Pair, XYZ-Wing, UR Type 2/4

XY:      gM-Wing, W-Wing, XY-Chain, BUG+2, BUG+3, other URs

Extreme: Chain, Loop, SIN (Single Inference Network)

BTW: Your solution matches what my solver found.
Back to top
View user's profile Send private message
Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Sat May 22, 2010 12:41 am    Post subject: Reply with quote
Quote:
Marty, looks like we are almost doing different puzzles - didn't see your steps at all!!

You're right Peter, my post was based on a different puzzle.

For this one I used:

M-Wing (45)
Coloring (5)
Kite (5)
XYZ-Wing (568)
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Puzzles by daj All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group