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Indian Sudoku Championship 2013192 posts • Page 3 of 8 • 1 2 3 4 5 6 7 8
@ 2013-08-09 4:11 PM (#12141 - in reply to #12140) (#12141) Top

prasanna16391



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prasanna16391 posted @ 2013-08-09 4:11 PM

deepika m - 2013-08-09 3:49 PM

what is sudo-kurve?not getting it.


There are 9 distinct digits in each 3 groups of 3 cells that are connected by gray lines. Example of this - The first row of the top left box, the 3rd column of the middle box and the first row of the bottom right box are connected by a bending gray line, and so there need to be all digits from 1-9 in those 9 cells.
@ 2013-08-09 4:16 PM (#12142 - in reply to #12140) (#12142) Top

macherlakumar




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macherlakumar posted @ 2013-08-09 4:16 PM

deepika m - 2013-08-09 3:49 PM
what is sudo-kurve?not getting it.

This might help you in understanding.




(Sudo-Kurve.png)



Attachments
----------------
Attachments Sudo-Kurve.png (25KB - 6 downloads)
@ 2013-08-09 4:33 PM (#12143 - in reply to #12142) (#12143) Top

purifire




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purifire posted @ 2013-08-09 4:33 PM

Good demo macherla :)

rishi
@ 2013-08-09 4:41 PM (#12144 - in reply to #12142) (#12144) Top

deepika m



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deepika m posted @ 2013-08-09 4:41 PM

still not getting it.my doubt is whether it's a 9x9 sudoku or not.
@ 2013-08-09 5:17 PM (#12145 - in reply to #12144) (#12145) Top

prasanna16391



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prasanna16391 posted @ 2013-08-09 5:17 PM

deepika m - 2013-08-09 4:41 PM

still not getting it.my doubt is whether it's a 9x9 sudoku or not.


I suppose it is more of a free-form type but the range will always be 1-9 as in the example. The example has just 3 boxes, but it has in all 6 different sets of 1-9 as Ravi pointed out. If you google Sudo-kurve you'll see many other possible layouts, the base theory in all being that there are such sets of 1-9 formed by the connecting gray lines.
@ 2013-08-09 5:37 PM (#12146 - in reply to #12145) (#12146) Top

kishy72



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kishy72 posted @ 2013-08-09 5:37 PM

Hi!
In smashed sums sudoku,can the shaded cells be orthogonally adjacent?It is not explicitly stated in the rules that they can't be.So i assume they might be when a sum is not given?!Also in the example puzzle i dont see that case happening as all row and column sums have been given already///
@ 2013-08-09 5:48 PM (#12147 - in reply to #12146) (#12147) Top

debmohanty




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debmohanty posted @ 2013-08-09 5:48 PM

kishy72 - 2013-08-09 5:37 PM

Hi!
In smashed sums sudoku,can the shaded cells be orthogonally adjacent?It is not explicitly stated in the rules that they can't be.So i assume they might be when a sum is not given?!Also in the example puzzle i dont see that case happening as all row and column sums have been given already///
Firstly, unlike the example, there will be some rows or columns without any outside clue in the actual puzzle.
If there is no clue, it just means there is no restriction on the shaded cells in that row / column. They could be adjacent or not be adjacent, in that row / column.
@ 2013-08-09 5:54 PM (#12148 - in reply to #12144) (#12148) Top

purifire




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purifire posted @ 2013-08-09 5:54 PM

deepika m - 2013-08-09 4:41 PM

still not getting it.my doubt is whether it's a 9x9 sudoku or not.


Deepika, not all sudokus need to be 9x9. There are so many variants which do not conform to this design. For example, Isosudoku, Snowflake sudoku. The only constraint we need to remember is that the digits do not repeat along the path denoted by the grey lines.

Rishi
@ 2013-08-10 5:58 AM (#12159 - in reply to #11781) (#12159) Top

Administrator



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Administrator posted @ 2013-08-10 5:58 AM

Points table published



The Instructions Booklet now has the points table (Page 3)
Other additions in Instructions Booklet
1) Bonus, Tie Breaker (Page 3)
2) Smashed Sums Sudoku - X should be entered for blacken cells (Page 11)
3) Solutions (Pages 14 - 16)

Link : http://logicmastersindia.com/2013/ISC/


@ 2013-08-10 2:17 PM (#12161 - in reply to #11781) (#12161) Top

rajeshk




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rajeshk posted @ 2013-08-10 2:17 PM

One question related to 6x6 Sudoku point distribution. Will the 100 points given only when all the 6x6 Sudoku solved correctly or each given mini Sudoku will have some points assigned to it?
@ 2013-08-10 2:24 PM (#12162 - in reply to #12161) (#12162) Top

Administrator



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Administrator posted @ 2013-08-10 2:24 PM

rajeshk - 2013-08-10 2:17 PM

One question related to 6x6 Sudoku point distribution. Will the 100 points given only when all the 6x6 Sudoku solved correctly or each given mini Sudoku will have some points assigned to it?
They are all independent of each other. Points are assigned to each of them. You get points for what you solve.
If you have logged in at the submission site, you would have noticed that there are 6 of them, and the points are as shown below.
(Top) 5 + 10
(Middle) 15 + 25
(Bottom) 25 + 20
@ 2013-08-10 4:56 PM (#12163 - in reply to #12136) (#12163) Top

tnv




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tnv posted @ 2013-08-10 4:56 PM

prasanna16391 - 2013-08-09 2:31 PM

Dileep Singh - 2013-08-09 2:26 PM

Ohh..i got it.
How to approach a Greater Than Consecutive Sudoku?


Its important in general to remember the converse rule. Wherever the sign isn't there, treat it like a non-consecutive Sudoku.


Thanks for the tip. Was very helpful.

--TNV
@ 2013-08-10 5:16 PM (#12164 - in reply to #12159) (#12164) Top

purifire




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purifire posted @ 2013-08-10 5:16 PM

I had a question on the Bonus points. It says that all answers with a maximum of 4 wrong cells will get the bonus of 7 points per minute saved. Now I assume the 4 cells are related to the answer keys that we key in. So do we get full points for a puzzle if we key in a wrong answer with a digit mistyped or do we get partial points or 0 points for the puzzle yet eligible for time bonus?

Rishi

Edited by purifire 2013-08-10 5:25 PM
@ 2013-08-10 7:47 PM (#12165 - in reply to #12164) (#12165) Top

debmohanty




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debmohanty posted @ 2013-08-10 7:47 PM

purifire - 2013-08-10 5:16 PM

I had a question on the Bonus points. It says that all answers with a maximum of 4 wrong cells will get the bonus of 7 points per minute saved. Now I assume the 4 cells are related to the answer keys that we key in. So do we get full points for a puzzle if we key in a wrong answer with a digit mistyped or do we get partial points or 0 points for the puzzle yet eligible for time bonus?

Rishi
0 for the puzzle, but still eligible for time bonus.
Note that, partial points will only be given in exceptional cases (e.g. the typo is on a given clue)
@ 2013-08-11 10:34 AM (#12172 - in reply to #12165) (#12172) Top

Administrator



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Administrator posted @ 2013-08-11 10:34 AM

Sudoku booklet upload

1) Password protected Sudoku booklet has 11 pages. There is no cover page or points table.
2) Each page has 2 Sudokus, except page 3 which has 6 6X6 Sudokus, page 4 which has Overlapping Sudoku, page 11 which has Outside Sudoku

@ 2013-08-11 11:44 AM (#12173 - in reply to #11781) (#12173) Top

rockfret



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rockfret posted @ 2013-08-11 11:44 AM

In the online interface, how to clear a cell after you've entered all the possible numbers?
@ 2013-08-11 11:56 AM (#12174 - in reply to #12173) (#12174) Top

Administrator



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Administrator posted @ 2013-08-11 11:56 AM

rockfret - 2013-08-11 11:44 AM

In the online interface, how to clear a cell after you've entered all the possible numbers?
Key / mouse controls for online Solving

What?KeyboardMouse
Add a confirmed digittype the digitRight Click, Fill digit
Add a pencil mark in an empty celltype the digit twice
Add pencil mark in a cell which has a digit or other pencil marks just type the digit
Remove pencil markpress control and the digitControl + click on this digit
Confirm pencil marktype the digitclick on this digit
Delete a confirmed digit"Space" or "Zero"Right Click, Clear

@ 2013-08-11 12:12 PM (#12175 - in reply to #11781) (#12175) Top

sanket.saxena



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sanket.saxena posted @ 2013-08-11 12:12 PM

it is okay ... but how will we type the X for empty cells in smashed sums sudoku ??

Edited by sanket.saxena 2013-08-11 12:13 PM
@ 2013-08-11 12:14 PM (#12176 - in reply to #12175) (#12176) Top

Administrator



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Administrator posted @ 2013-08-11 12:14 PM

sanket.saxena - 2013-08-11 12:12 PM

it is okay ... but how will we type the X for empty cells in smashed sums sudoku ??
Just type the letter X as you would type any digit. Please solve the examples to get familiar.
@ 2013-08-11 12:25 PM (#12177 - in reply to #12176) (#12177) Top

Administrator



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Administrator posted @ 2013-08-11 12:25 PM

Administrator - 2013-08-11 12:14 PM

sanket.saxena - 2013-08-11 12:12 PM

it is okay ... but how will we type the X for empty cells in smashed sums sudoku ??
Just type the letter X as you would type any digit. Please solve the examples to get familiar.
One more note about Smashed Sums online interface - Please use the Space key to erase entries. 'Delete' key does not work nicely.
@ 2013-08-11 12:51 PM (#12178 - in reply to #11781) (#12178) Top

coolrajesh



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coolrajesh posted @ 2013-08-11 12:51 PM

Please let me know the format of pwd for the pdf shown above for reference
@ 2013-08-11 1:00 PM (#12179 - in reply to #12178) (#12179) Top

Administrator



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Administrator posted @ 2013-08-11 1:00 PM

coolrajesh - 2013-08-11 12:51 PM

Please let me know the format of pwd for the pdf shown above for reference


How to get the password?


In previous year's championship, many players were not sure how to get the password. Exactly following steps are needed to get the password for the puzzle pdf.
Note that the "Start ISC 2013" button will be enabled only after 2:00PM.
If the button is still disabled, you need to refresh your browser.





@ 2013-08-11 1:34 PM (#12180 - in reply to #12179) (#12180) Top

amitsowani




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amitsowani posted @ 2013-08-11 1:34 PM

In Sudo-Kurve I can see that the answer key is 9 digits long.
I presume that this corresponds to the nine digits along the curve in the direction of the arrow?
@ 2013-08-11 1:41 PM (#12181 - in reply to #11781) (#12181) Top

rajeshk




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rajeshk posted @ 2013-08-11 1:41 PM

All the best to all participants of ISC 2013.

@ 2013-08-11 1:56 PM (#12182 - in reply to #12180) (#12182) Top

Administrator



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Administrator posted @ 2013-08-11 1:56 PM

amitsowani - 2013-08-11 1:34 PM

In Sudo-Kurve I can see that the answer key is 9 digits long.
I presume that this corresponds to the nine digits along the curve in the direction of the arrow?
Yes. It has been clarified in the IB.
Indian Sudoku Championship 2013192 posts • Page 3 of 8 • 1 2 3 4 5 6 7 8
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