Thread - Indian Sudoku Championship 2013

@ 2013-08-07 10:11 AM (#12108 - in reply to #12105) (#12108) Top

purifire

Posts: 460

Country : India

purifire posted @ 2013-08-07 10:11 AM

akash.doulani - 2013-08-07 9:35 AM

In the example of smashed sum sudoku , where are the blackened cells?

You have to find the black cells. On the left you will find a sum of 28, which means the black cells for that row are in C1 and C9. You can go on from there.

Rishi

@ 2013-08-07 10:23 AM (#12109 - in reply to #12107) (#12109) Top

amitsowani

Posts: 349

Country : India

amitsowani posted @ 2013-08-07 10:23 AM

dp_94 - 2013-08-07 10:11 AM

The top few will be invited to the World Sudoku Championships in an individual capacity, what "top few" means here.

Four participants were selected from the Times Sudoku Championship. We expect them to do well in the ISC too.
We will be looking for the top 4 apart from those who have qualified from TSC.
We will also be considering exceptional performances by some newcomers, who could benefit from the exposure of a World Championship.

@ 2013-08-07 4:33 PM (#12111 - in reply to #11781) (#12111) Top

SANJAY

Posts: 1

SANJAY posted @ 2013-08-07 4:33 PM

I have just registered and need to know from where I can get the study material for practice? In newspapers we only get simple classic version, nothing else........

@ 2013-08-07 4:58 PM (#12112 - in reply to #12111) (#12112) Top

prasanna16391

Posts: 1801

Country : India

prasanna16391 posted @ 2013-08-07 4:58 PM

SANJAY - 2013-08-07 4:33 PM

I have just registered and need to know from where I can get the study material for practice? In newspapers we only get simple classic version, nothing else........

Well, you may have to search for the exact variants related to the ISC, but there is a lot of practice material on this site. LMI conducts regular Beginners' Contests and Monthly Tests. Look through the test links/ PDFs in both those links and that should be more than enough to practice. If any doubts/queries regarding a particular Sudoku, you can always post that here and one of us will surely help.

@ 2013-08-07 5:04 PM (#12113 - in reply to #11781) (#12113) Top

prasanna16391

Posts: 1801

Country : India

prasanna16391 posted @ 2013-08-07 5:04 PM

Oh to add to that, the Instruction booklet posted on the submission link provided a few posts above can itself be used as practice

@ 2013-08-07 5:29 PM (#12114 - in reply to #12113) (#12114) Top

Administrator

Country : India

Administrator posted @ 2013-08-07 5:29 PM

A question thats been asked frequently via sms and E-mail -

I have registered on the forum. How to register for ISC?

Answer - There is no separate registration. Once the Submission page is active, there will be a place to enter login details, and you need to enter the same user-name and password as the one you used to register on the forum.

@ 2013-08-08 2:47 PM (#12117 - in reply to #11781) (#12117) Top

Dileep Singh

Posts: 16

Country : India

Dileep Singh posted @ 2013-08-08 2:47 PM

Please post the solution of smashed sums sudoku given in the instruction booklet.

@ 2013-08-08 2:50 PM (#12119 - in reply to #12117) (#12119) Top

Administrator

Country : India

Administrator posted @ 2013-08-08 2:50 PM

Dileep Singh - 2013-08-08 2:47 PM

Please post the solution of smashed sums sudoku given in the instruction booklet.

(from http://yureklis.wordpress.com/2012/06/23/smashed-sums-sudoku/ )

@ 2013-08-08 4:24 PM (#12120 - in reply to #11781) (#12120) Top

Dileep Singh

Posts: 16

Country : India

Dileep Singh posted @ 2013-08-08 4:24 PM

thanks :)
sry i didn`t see the link, given below the puzzle in the IB.

@ 2013-08-08 5:29 PM (#12121 - in reply to #11781) (#12121) Top

nemmara

Posts: 1

Country : India

nemmara posted @ 2013-08-08 5:29 PM

pls give adetailed procedure of online solving as i have no printer.

@ 2013-08-08 7:03 PM (#12122 - in reply to #12121) (#12122) Top

rakesh_rai

Posts: 774

Country : India

rakesh_rai posted @ 2013-08-08 7:03 PM

nemmara - 2013-08-08 5:29 PM

pls give adetailed procedure of online solving as i have no printer.

Please go through the FAQ. If you still have questions, please ask them here.

@ 2013-08-09 12:43 AM (#12126 - in reply to #12122) (#12126) Top

Organisers

Posts: 175

Country : India

Organisers posted @ 2013-08-09 12:43 AM

Submission page activated

Submission page is now activated. Link : http://logicmastersindia.com/2013/ISC/
New players should check the submission page and see how it works.

Players planning to solve online (i.e. without printer) should practice and get used to LMI solving interface. Some selected examples are available now to be solved online. Link : http://logicmastersindia.com/2013/ISC/?online=1

@ 2013-08-09 12:49 AM (#12127 - in reply to #12097) (#12127) Top

Organisers

Posts: 175

Country : India

Organisers posted @ 2013-08-09 12:49 AM

prasanna16391 - 2013-08-05 7:06 PM

2 things -

In overlapping Sudoku - Do we assume that the overlap will be "clean" like the IB example, or is it possible that it will cut into boxes? (e.g. I think the one at the WSC in 2012 had just 2 rows/columns that weren't overlapping, instead of 3 as in the example)

It will be exactly same layout. The organisers have decided not to throw surprises after the IPC.

prasanna16391 - 2013-08-05 7:06 PM

Answer keys - Again, in Overlapping Sudoku, I assume that the non-overlap parts will also need to be entered, making the key possibly longer than 9 digits? Also, in Smashed Sums Sudoku, how should the black/blank cells be denoted in the key?

Answer key for Overlapping Sudoku can be 9 digits or 12 digits.
Smashed Sums Sudoku : Enter X for black cells, although you will also be awarded points if you enter anything like 0 or -

@ 2013-08-09 11:48 AM (#12131 - in reply to #11781) (#12131) Top

Dileep Singh

Posts: 16

Country : India

Dileep Singh posted @ 2013-08-09 11:48 AM

There is no option to mark 7 in smashed sums sudoku.
instead there are two options to mark X and .
which i think both to mark blank cells. Please check it.

@ 2013-08-09 11:55 AM (#12133 - in reply to #12131) (#12133) Top

Organisers

Posts: 175

Country : India

Organisers posted @ 2013-08-09 11:55 AM

Dileep Singh - 2013-08-09 11:48 AM

There is no option to mark 7 in smashed sums sudoku.
instead there are two options to mark X and .
which i think both to mark blank cells. Please check it.

Fixed.

@ 2013-08-09 12:13 PM (#12134 - in reply to #12131) (#12134) Top

prasanna16391

Posts: 1801

Country : India

prasanna16391 posted @ 2013-08-09 12:13 PM

Dileep Singh - 2013-08-09 11:48 AM

instead there are two options to mark X and .

I think this is there for a reason. You can mark black cells with X and mark a . for where you think a number should be (as in, not black) and that marking will certainly help in solving this one.

@ 2013-08-09 2:26 PM (#12135 - in reply to #11781) (#12135) Top

Dileep Singh

Posts: 16

Country : India

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

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

@ 2013-08-09 2:31 PM (#12136 - in reply to #12135) (#12136) Top

prasanna16391

Posts: 1801

Country : India

prasanna16391 posted @ 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.

@ 2013-08-09 2:39 PM (#12137 - in reply to #11781) (#12137) Top

Dileep Singh

Posts: 16

Country : India

Dileep Singh posted @ 2013-08-09 2:39 PM

Thanks PS..:)

@ 2013-08-09 2:49 PM (#12138 - in reply to #12136) (#12138) Top

debmohanty

Country : India

debmohanty posted @ 2013-08-09 2:49 PM

prasanna16391's 500^th post

Congratulations on your blue star

@ 2013-08-09 3:17 PM (#12139 - in reply to #12138) (#12139) Top

prasanna16391

Posts: 1801

Country : India

prasanna16391 posted @ 2013-08-09 3:17 PM

debmohanty - 2013-08-09 2:49 PM

Congratulations on your blue star

Thanks

I just checked the submission page. There seem to be points assigned to each Sudoku there. Since these aren't updated into the IB, I assume these aren't the final/official points distribution?

@ 2013-08-09 3:49 PM (#12140 - in reply to #11781) (#12140) Top

deepika m

Posts: 12

Country : India

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

what is sudo-kurve?not getting it.

@ 2013-08-09 4:11 PM (#12141 - in reply to #12140) (#12141) Top

prasanna16391

Posts: 1801

Country : India

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

Posts: 123

Country : India

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
----------------

Sudo-Kurve.png (25KB - 6 downloads)

@ 2013-08-09 4:33 PM (#12143 - in reply to #12142) (#12143) Top

purifire

Posts: 460

Country : India

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

Good demo macherla :)

rishi


	@ 2013-08-07 10:11 AM (#12108 - in reply to #12105) (#12108) Top
purifire Posts: 460 Country : India	purifire posted @ 2013-08-07 10:11 AM akash.doulani - 2013-08-07 9:35 AM In the example of smashed sum sudoku , where are the blackened cells? You have to find the black cells. On the left you will find a sum of 28, which means the black cells for that row are in C1 and C9. You can go on from there. Rishi
	@ 2013-08-07 10:23 AM (#12109 - in reply to #12107) (#12109) Top
amitsowani Posts: 349 Country : India	amitsowani posted @ 2013-08-07 10:23 AM dp_94 - 2013-08-07 10:11 AM The top few will be invited to the World Sudoku Championships in an individual capacity, what "top few" means here. Four participants were selected from the Times Sudoku Championship. We expect them to do well in the ISC too. We will be looking for the top 4 apart from those who have qualified from TSC. We will also be considering exceptional performances by some newcomers, who could benefit from the exposure of a World Championship.
	@ 2013-08-07 4:33 PM (#12111 - in reply to #11781) (#12111) Top
SANJAY Posts: 1	SANJAY posted @ 2013-08-07 4:33 PM I have just registered and need to know from where I can get the study material for practice? In newspapers we only get simple classic version, nothing else........
	@ 2013-08-07 4:58 PM (#12112 - in reply to #12111) (#12112) Top
prasanna16391 Posts: 1801 Country : India	prasanna16391 posted @ 2013-08-07 4:58 PM SANJAY - 2013-08-07 4:33 PM I have just registered and need to know from where I can get the study material for practice? In newspapers we only get simple classic version, nothing else........ Well, you may have to search for the exact variants related to the ISC, but there is a lot of practice material on this site. LMI conducts regular Beginners' Contests and Monthly Tests. Look through the test links/ PDFs in both those links and that should be more than enough to practice. If any doubts/queries regarding a particular Sudoku, you can always post that here and one of us will surely help.
	@ 2013-08-07 5:04 PM (#12113 - in reply to #11781) (#12113) Top
prasanna16391 Posts: 1801 Country : India	prasanna16391 posted @ 2013-08-07 5:04 PM Oh to add to that, the Instruction booklet posted on the submission link provided a few posts above can itself be used as practice
	@ 2013-08-07 5:29 PM (#12114 - in reply to #12113) (#12114) Top
Administrator Country : India	Administrator posted @ 2013-08-07 5:29 PM A question thats been asked frequently via sms and E-mail - I have registered on the forum. How to register for ISC? Answer - There is no separate registration. Once the Submission page is active, there will be a place to enter login details, and you need to enter the same user-name and password as the one you used to register on the forum.
	@ 2013-08-08 2:47 PM (#12117 - in reply to #11781) (#12117) Top
Dileep Singh Posts: 16 Country : India	Dileep Singh posted @ 2013-08-08 2:47 PM Please post the solution of smashed sums sudoku given in the instruction booklet.
	@ 2013-08-08 2:50 PM (#12119 - in reply to #12117) (#12119) Top
Administrator Country : India	Administrator posted @ 2013-08-08 2:50 PM Dileep Singh - 2013-08-08 2:47 PM Please post the solution of smashed sums sudoku given in the instruction booklet. (from http://yureklis.wordpress.com/2012/06/23/smashed-sums-sudoku/ )
	@ 2013-08-08 4:24 PM (#12120 - in reply to #11781) (#12120) Top
Dileep Singh Posts: 16 Country : India	Dileep Singh posted @ 2013-08-08 4:24 PM thanks :) sry i didn`t see the link, given below the puzzle in the IB.
	@ 2013-08-08 5:29 PM (#12121 - in reply to #11781) (#12121) Top
nemmara Posts: 1 Country : India	nemmara posted @ 2013-08-08 5:29 PM pls give adetailed procedure of online solving as i have no printer.
	@ 2013-08-08 7:03 PM (#12122 - in reply to #12121) (#12122) Top
rakesh_rai Posts: 774 Country : India	rakesh_rai posted @ 2013-08-08 7:03 PM nemmara - 2013-08-08 5:29 PM pls give adetailed procedure of online solving as i have no printer. Please go through the FAQ. If you still have questions, please ask them here.
	@ 2013-08-09 12:43 AM (#12126 - in reply to #12122) (#12126) Top
Organisers Posts: 175 Country : India	Organisers posted @ 2013-08-09 12:43 AM Submission page activated Submission page is now activated. Link : http://logicmastersindia.com/2013/ISC/ New players should check the submission page and see how it works. Players planning to solve online (i.e. without printer) should practice and get used to LMI solving interface. Some selected examples are available now to be solved online. Link : http://logicmastersindia.com/2013/ISC/?online=1
	@ 2013-08-09 12:49 AM (#12127 - in reply to #12097) (#12127) Top
Organisers Posts: 175 Country : India	Organisers posted @ 2013-08-09 12:49 AM prasanna16391 - 2013-08-05 7:06 PM 2 things - In overlapping Sudoku - Do we assume that the overlap will be "clean" like the IB example, or is it possible that it will cut into boxes? (e.g. I think the one at the WSC in 2012 had just 2 rows/columns that weren't overlapping, instead of 3 as in the example) It will be exactly same layout. The organisers have decided not to throw surprises after the IPC. prasanna16391 - 2013-08-05 7:06 PM Answer keys - Again, in Overlapping Sudoku, I assume that the non-overlap parts will also need to be entered, making the key possibly longer than 9 digits? Also, in Smashed Sums Sudoku, how should the black/blank cells be denoted in the key? Answer key for Overlapping Sudoku can be 9 digits or 12 digits. Smashed Sums Sudoku : Enter X for black cells, although you will also be awarded points if you enter anything like 0 or -
	@ 2013-08-09 11:48 AM (#12131 - in reply to #11781) (#12131) Top
Dileep Singh Posts: 16 Country : India	Dileep Singh posted @ 2013-08-09 11:48 AM There is no option to mark 7 in smashed sums sudoku. instead there are two options to mark X and . which i think both to mark blank cells. Please check it.
	@ 2013-08-09 11:55 AM (#12133 - in reply to #12131) (#12133) Top
Organisers Posts: 175 Country : India	Organisers posted @ 2013-08-09 11:55 AM Dileep Singh - 2013-08-09 11:48 AM There is no option to mark 7 in smashed sums sudoku. instead there are two options to mark X and . which i think both to mark blank cells. Please check it. Fixed.
	@ 2013-08-09 12:13 PM (#12134 - in reply to #12131) (#12134) Top
prasanna16391 Posts: 1801 Country : India	prasanna16391 posted @ 2013-08-09 12:13 PM Dileep Singh - 2013-08-09 11:48 AM instead there are two options to mark X and . I think this is there for a reason. You can mark black cells with X and mark a . for where you think a number should be (as in, not black) and that marking will certainly help in solving this one.
	@ 2013-08-09 2:26 PM (#12135 - in reply to #11781) (#12135) Top
Dileep Singh Posts: 16 Country : India	Dileep Singh posted @ 2013-08-09 2:26 PM Ohh..i got it. How to approach a Greater Than Consecutive Sudoku?
	@ 2013-08-09 2:31 PM (#12136 - in reply to #12135) (#12136) Top
prasanna16391 Posts: 1801 Country : India	prasanna16391 posted @ 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.
	@ 2013-08-09 2:39 PM (#12137 - in reply to #11781) (#12137) Top
Dileep Singh Posts: 16 Country : India	Dileep Singh posted @ 2013-08-09 2:39 PM Thanks PS..:)
	@ 2013-08-09 2:49 PM (#12138 - in reply to #12136) (#12138) Top
debmohanty Country : India	debmohanty posted @ 2013-08-09 2:49 PM prasanna16391's 500^th post Congratulations on your blue star
	@ 2013-08-09 3:17 PM (#12139 - in reply to #12138) (#12139) Top
prasanna16391 Posts: 1801 Country : India	prasanna16391 posted @ 2013-08-09 3:17 PM debmohanty - 2013-08-09 2:49 PM Congratulations on your blue star Thanks I just checked the submission page. There seem to be points assigned to each Sudoku there. Since these aren't updated into the IB, I assume these aren't the final/official points distribution?
	@ 2013-08-09 3:49 PM (#12140 - in reply to #11781) (#12140) Top
deepika m Posts: 12 Country : India	deepika m posted @ 2013-08-09 3:49 PM what is sudo-kurve?not getting it.
	@ 2013-08-09 4:11 PM (#12141 - in reply to #12140) (#12141) Top
prasanna16391 Posts: 1801 Country : India	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 Posts: 123 Country : India	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 ---------------- Sudo-Kurve.png (25KB - 6 downloads)
	@ 2013-08-09 4:33 PM (#12143 - in reply to #12142) (#12143) Top
purifire Posts: 460 Country : India	purifire posted @ 2013-08-09 4:33 PM Good demo macherla :) rishi