View unanswered posts | View active topics It is currently Tue Oct 17, 2017 11:40 am



← Back to the Calcudoku puzzle page




Reply to topic  [ 13 posts ]  Go to page 1, 2  Next
 Calcudoku with diagonals 
Author Message

Posted on: Wed Feb 26, 2014 5:29 am




Posts: 37
Location: Karviná
Joined: Sun Feb 03, 2013 3:25 am
Post Calcudoku with diagonals
Hi, solvers, I was inspired one of speciality of sudoku – sudoku with diagonals. So I created such calcudoku. In both diagonals (gray lines) must appear each of numbers 1–7.

Image

Good solving… [thumbup]


Last edited by kozibrada on Sun Oct 01, 2017 4:46 pm, edited 1 time in total.



Profile

Posted on: Wed Feb 26, 2014 6:02 pm




Posts: 93
Joined: Sat May 14, 2011 1:08 am
Post Re: Calcudoku with diagonals
kozibrada wrote:
Hi, solvers, I was inspired one of speciality of sudoku – sudoku with diagonals. So I created such calcudoku. In both diagonals (gray lines) must appear each of numbers 1–7.


Nice puzzle! Thanks.


Profile

Posted on: Thu Feb 27, 2014 3:16 am




Posts: 192
Joined: Tue May 24, 2011 4:55 pm
Post Re: Calcudoku with diagonals
Groovy! With my beloved bitwise OR! [love]


Profile

Posted on: Thu Feb 27, 2014 10:53 am




Posts: 65
Joined: Fri May 13, 2011 9:37 am
Post Re: Calcudoku with diagonals
Nice puzzle. Indeed just 1 solution.


Profile

Posted on: Sun Mar 02, 2014 12:55 am




Posts: 690
Joined: Fri May 13, 2011 6:51 pm
Post Re: Calcudoku with diagonals
Thanks for your effort, I have really enjoyed it. [thumbsup]

Very original puzzle, I also think that the solution is unique with the restriction imposed (the main diagonals). I like the symmetry of the diagram too (producing that particular set of numbers in the central H-shape cage).

Considering that the solution is unique (even without the restriction), according to nicow (particularly myself I have not analyzed this) I would suggest that you "propose" it as user-defined puzzle (in the "Submit your own puzzles to the site") link.

If you decide so, here is the code (if it is helpful for you):

11,+,a1a2b1
10,+,c1d1e1
12,+,f1g1g2
5,|,b2c2
28,x,d2d3
7,|,e2f2
11,+,a3a4a5
4,-,b3b4b5
81,^,c3c4c5d4e3e4e5
0,-,f3f4f5
15,+,g3g4g5
6,x,d5d6
16,+,a6a7b7
7,|,b6c6
5,|,e6f6
9,+,f7g6g7
11,+,c7d7e7


Profile

Posted on: Sun Mar 02, 2014 3:11 am




Posts: 163
Joined: Thu May 12, 2011 11:51 pm
Post Re: Calcudoku with diagonals
I had a similar thought, knowing that if I were clever enough to construct such an excellent puzzle, I would have major difficulty with the code for submission. I then realized, though, that submissions are currently limited to addition, subtraction, multiplication and division. I hope Patrick will be able to change this when convenient.


Profile

Posted on: Sun Mar 02, 2014 12:17 pm




Posts: 65
Joined: Fri May 13, 2011 9:37 am
Post Re: Calcudoku with diagonals
Image

This is the first 'solution' my solver found. See the multiple 7's in the diagonal.

So I added to the (new) model the restriction for diagonals; that's quite easy.

clm is right, this is not a good 'solution'.


Last edited by nicow on Sun Mar 02, 2014 7:03 pm, edited 1 time in total.



Profile

Posted on: Sun Mar 02, 2014 2:44 pm




Posts: 690
Joined: Fri May 13, 2011 6:51 pm
Post Re: Calcudoku with diagonals
nicow wrote:
...
This is the first 'solution' my solver found. See the multiple 7's in the diagonal.

So I added to the (new) model the restriction for diagonals; that's quite easy.


For this first solution you found, it is a little confusing for me how can you get the result 81^ in the central H-shape cage, that is, in which sequence of the operation ^ .


Profile
User avatar

Posted on: Sun Mar 02, 2014 4:22 pm




Posts: 2192
Joined: Thu May 12, 2011 11:58 pm
Post Re: Calcudoku with diagonals
sjs34 wrote:
I then realized, though, that submissions are currently limited to addition, subtraction, multiplication and division. I hope Patrick will be able to change this when convenient.

In practice there is no such restriction, I only wrote that to try and make the submission page
a bit more accessible.


Profile
User avatar

Posted on: Sun Mar 02, 2014 4:26 pm




Posts: 2192
Joined: Thu May 12, 2011 11:58 pm
Post Re: Calcudoku with diagonals
clm wrote:
For this first solution you found, it is a little confusing for me how can you get the result 81^ in the central H-shape cage, that is, in which sequence of the operation ^ .

Yes, I don't see that either.

Here's a solution, one of 152 found by my solver:

5 4 3 1 6 7 2
2 5 1 4 7 6 3
6 1 5 7 3 2 4
4 2 7 6 1 3 5
1 7 4 3 2 5 6
7 3 6 2 5 4 1
3 6 2 5 4 1 7

Still something not quite right though, because it can't find a solution with different numbers on both diagonals [sad]


Profile
Display posts from previous:  Sort by  
Reply to topic   [ 13 posts ]  Go to page 1, 2  Next

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

Search for:
Jump to:  
cron
All forum contents © Patrick Min, and by the post authors.

Forum software phpBB © 2000, 2002, 2005, 2007 phpBB Group.
Designed by STSoftware.