Forsmarts Puzzle Forum

International puzzlers community

You are not logged in.

#1 2008-02-09 14:17:32

Katherine
Member
Registered: 2008-01-28
Posts: 20
Website

sudoku-5 need help!

how to continue?

Offline

 

#2 2008-02-09 14:25:03

Katherine
Member
Registered: 2008-01-28
Posts: 20
Website

Re: sudoku-5 need help!

http://img127.imageshack.us/img127/2093/75931923tm8.th.jpg

Last edited by Katherine (2008-02-09 14:27:13)

Offline

 

#3 2008-02-10 11:01:57

aman
Member
From: Singapore
Registered: 2007-08-23
Posts: 42

Re: sudoku-5 need help!

I suggest that you post your question and the puzzle on the following 3 forums where you can find more experts who specialize in this type of fiendish classic sudoku puzzle.

http://www.sudocue.net/forum/

http://www.sudoku.com/boards/index.php? … 37e144c818

http://www.sudoku.org.uk/SudokuForums.asp?fid=1

I suspect the puzzle has more than one solution because I could get one solution (as shown below) by randomly filled in the numbers with the help of a sudoku solver.


9 4 7 | 3 5 8 | 1 2 6
5 8 1 | 7 6 2 | 4 3 9
2 6 3 | 9 1 4 | 8 5 7
---------------------
6 1 4 | 2 9 5 | 7 8 3
7 2 9 | 6 8 3 | 5 1 4
3 5 8 | 4 7 1 | 9 6 2
---------------------
4 7 5 | 1 2 6 | 3 9 8
1 9 2 | 8 3 7 | 6 4 5
8 3 6 | 5 4 9 | 2 7 1

Offline

 

#4 2008-02-10 11:49:28

aman
Member
From: Singapore
Registered: 2007-08-23
Posts: 42

Re: sudoku-5 need help!

Sorry for the wrong information given.  I thought it was just a classic sudoku and I did not know that there was an additional rule for the puzzle (Sum of digits in all areas outlined by dots must end with 5) until a friend pointed it out to me in http://forsmarts.com/pdf/fpb_05.pdf

Hence the puzzle should have a unique solution, and my so-called solution is invalid.  We shall have to wait for the solution to be announced after the contest deadline of April 10.

Offline

 

#5 2008-02-10 15:41:32

rakesh_rai
Member
Registered: 2007-06-02
Posts: 18

Re: sudoku-5 need help!

The deadline was April 10, 2007. So the solution would already have been announced....

Offline

 

#6 2008-02-10 16:19:45

aman
Member
From: Singapore
Registered: 2007-08-23
Posts: 42

Re: sudoku-5 need help!

Yes, by right all the solutions should have been posted on the board.  So where are the solutions?

Offline

 

#7 2008-02-10 16:57:03

Katherine
Member
Registered: 2008-01-28
Posts: 20
Website

Re: sudoku-5 need help!

http://img225.imageshack.us/img225/9509/post4192121202200473wi1.th.jpg
this's one of my friends' solution.because it's spring festival now.i couldn't find him.by his post in http://bbs.verycd.com,he said he guessed then found  this solution.the last image he post is same as the one i show.i had asked some suduku fans.we all come to the step as i show. i only want to know how to continue,what's the next step,not the solution.because i think sudoku need no guess. i know sudoku-5 in this forum,so i write the topic here.anywhere,thank you all the same,aman and rakesh_rai.
ps:what's the contest?

Offline

 

#8 2008-02-11 09:09:32

aman
Member
From: Singapore
Registered: 2007-08-23
Posts: 42

Re: sudoku-5 need help!

Perhaps the puzzle-maker or some contestants who had managed to solve the puzzle can come forward to explain the logical steps to you.  The answer key (Write the content of the diagonal going from top left corner to bottom right for both puzzles) in http://forsmarts.com/pdf/fpb_05.pdf does not offer much help.

Offline

 

#9 2008-02-11 10:52:54

forsmarts
Administrator
From: Minsk
Registered: 2007-05-29
Posts: 195
Website

Re: sudoku-5 need help!

I believe that this thread is useful enough. But I'll provide you with some more steps soon. smile

Offline

 

#10 2008-02-11 14:29:00

Katherine
Member
Registered: 2008-01-28
Posts: 20
Website

Re: sudoku-5 need help!

hello forsmarts,i had already read that topic,they only talked about the right one.but i think the right one is easier than the left one.i'm waiting for your tips.

Offline

 

#11 2008-03-31 11:05:48

forsmarts
Administrator
From: Minsk
Registered: 2007-05-29
Posts: 195
Website

Re: sudoku-5 need help!

OMG, I've completely forgot about my promise sad Not sure if my help is needed anymore.

Offline

 

#12 2008-04-05 06:53:42

Katherine
Member
Registered: 2008-01-28
Posts: 20
Website

Re: sudoku-5 need help!

hello Administrator.i'm gland to see your tips

Offline

 

#13 2008-04-10 09:32:47

Andrey Bogdanov
Administrator
From: Moscow
Registered: 2007-05-30
Posts: 355
Website

Re: sudoku-5 need help!

Katherine wrote:

hello Administrator.i'm gland to see your tips

Vladimir now go to the WSC in India and asked me wrtie a tip. But I still cannot find the next step. This puzzle is not my favorite - I mostly like online solving, but this requires a lot of time. May be sombody else can give tips?

Offline

 

#14 2008-04-25 15:53:17

Katherine
Member
Registered: 2008-01-28
Posts: 20
Website

Re: sudoku-5 need help!

does he come back now?i need his help.thank you

Offline

 

#15 2008-04-29 12:38:34

forsmarts
Administrator
From: Minsk
Registered: 2007-05-29
Posts: 195
Website

Re: sudoku-5 need help!

Katherine, I haven't found any obvious ways to proceed from the point where you got stuck smile This was the contest puzzle, and I gave a couple of weeks for solving, so don't feel bad if you cannot solve it in 5 minutes smile

Offline

 

#16 2008-05-04 13:01:33

jhrdina
Member
Registered: 2007-06-03
Posts: 42

Re: sudoku-5 need help!

Katherine, look at the topic sudoku-5. I have posted there some hints to the two sudoku-5 puzzles you are talking about some time ago. May be you could have gone there first before opening a new topic. :-) Just it woud be better to keep the discussion in one place.
Regards
Jiri

Offline

 

#17 2008-05-07 00:37:37

jhrdina
Member
Registered: 2007-06-03
Posts: 42

Re: sudoku-5 need help!

Katherine, sorry. I have realized that my remarks concerned the other sudoku-5 puzzle from the Puzzle Book, not the one you have posted here. This one is really tough and I do not see any simple help either.

Offline

 

Board footer

Powered by PunBB
© Copyright 2002–2005 Rickard Andersson