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Organisers
Posts: 175
 
Country : India | |
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akash.doulani
Posts: 157
Country : India | great to see the ib out. but i couldnt quite get the meaning of "point value" |
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Organisers
Posts: 175
Country : India | akash.doulani - 2011-04-17 8:23 PM
great to see the ib out. but i couldnt quite get the meaning of "point value"
Forget about point value, this is what the whole points structure means
If you solve a variant in 5 minutes you will get much more points than if you solve a Classic in same amount of time.
In other words, a 35 points variant will take less time to solve than a 35 points Classic
The summary is : You should spend most of your time on Variants. |
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lmunira
Posts: 8
Country : India | lmunira posted @ 2011-04-18 2:47 PM Hi,
Any idea about the number of people who will be selected from this round for the finals? Also, I hope this online qualification round is open for everybody.
Thanks,
Munira.
Edited by lmunira 2011-04-18 2:49 PM
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Organisers
Posts: 175
Country : India | lmunira - 2011-04-18 2:47 PM
Hi,
Any idea about the number of people who will be selected from this round for the finals? Also, I hope this online qualification round is open for everybody.
Thanks,
Munira.
We'll select 15 from the online round.
Not sure what you mean by "everybody". Do you mean international participants? It is open to them for playing, but they can't qualify for ISC. |
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utkaarsh
Posts: 89
Country : India | Will the position bonus be amongst all players or for ISC players , will it be different,
also those who have already qualified thru regional rounds,will their scores be counted for postion bonus |
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debmohanty
 
Country : India | utkaarsh - 2011-04-18 3:57 PM
Will the position bonus be amongst all players or for ISC players , will it be different,
also those who have already qualified thru regional rounds,will their scores be counted for postion bonus
Utkaarsh, Would it matter if we do either way?
The aim is to select top 15 Indian players who haven't qualified from regional rounds. |
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utkaarsh
Posts: 89
Country : India | Deb true, looks like it will not matter either ways,
i thot no harm if it is clarified,
Edited by utkaarsh 2011-04-18 7:30 PM
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Fred76
Posts: 337
Country : Switzerland | Fred76 posted @ 2011-04-18 8:34 PM Nice IB, with easy grids, except Inequality Sudoku ! 
I'm not able to solve it... Can somebody explain how he cracked this one?
Thanks 
Fred |
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debmohanty
Country : India | |
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Fred76
Posts: 337
Country : Switzerland | Fred76 posted @ 2011-04-18 9:18 PM |
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debmohanty
Country : India |
No, it is not same. My mistake.
I just copied from some old example thinking it is same as WSC08 example (because the digits' placement were same )
Will update the IB.
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Administrator
Country : India | Uploaded updated IB with correct example of Inequality |
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Gareth
Posts: 17
Country : United Kingdom | Gareth posted @ 2011-04-19 3:05 AM ,
Edited by Gareth 2011-04-19 3:07 AM
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lmunira
Posts: 8
Country : India | lmunira posted @ 2011-04-19 11:59 AM Organisers - 2011-04-18 3:27 PM
lmunira - 2011-04-18 2:47 PM
Hi,
Any idea about the number of people who will be selected from this round for the finals? Also, I hope this online qualification round is open for everybody.
Thanks,
Munira.
We'll select 15 from the online round.
Not sure what you mean by "everybody". Do you mean international participants? It is open to them for playing, but they can't qualify for ISC.
By Everybody I meant people who have not participated in the earlier competitions that were conducted at various colleges and/or the online round in January.
Thanks,
Munira. |
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jaisbansal
Posts: 6
Country : India | Hi,
Can anyone suggest any websites where we could find more of the variants for practice, specially the 'outside sudoku' & 'product frame sudoku'?
Thanks,
Jai |
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purifire
Posts: 460
Country : India | jaisbansal - 2011-04-19 11:05 PM
Hi,
Can anyone suggest any websites where we could find more of the variants for practice, specially the 'outside sudoku' & 'product frame sudoku'?
Thanks,
Jai
go to http://www.argio-logic.net/sudoku/sudoku.php
u may have to register to play
Rishi |
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jaisbansal
Posts: 6
Country : India | Thanks Rishi :-) |
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Kaushik Unava
Posts: 3
Country : India | Timing
• 120 minutes
• Online round will start at 23-Apr-2011 14:00 IST
• To qualify for ISC finals, all submissions before 23-Apr-2011 16:30 IST will be considered. So if you are
aiming to qualify for ISC finals, start online round accordingly
• The round will be open for 48 hours, and results will be used by LMI ratings and UKPA ratings
This is what written in the PDF Booklet, Where in second point its mentioned that till 16.30 submission willl be considered while in 3rd point its mentioned that round will be open for 48 hours.........confusion guys........
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sudoku
Posts: 4
| sudoku posted @ 2011-04-20 11:27 PM HI,
I have qualified the regional round . Do I still need to participate in this to go to the finals because I got a mail from LMI saying that I am requested to take part in this one. Please clarify |
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Ours brun
Posts: 148
Country : France | Kaushik, the test is open for 48 hours but only submissions made before 23 april 16:30 IST will be considered regarding indian qualifications. Other results will be used for LMI and UK ratings only. So, in your case, be careful to start the test before 14:30, so that your submissions arrive at 16:30 max.
sudoku, as far as I have understood the functioning of indian selections, you do not need to participate in the online test if you have already qualified, but I will let the organizers confirm it. |
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Fred76
Posts: 337
Country : Switzerland | Fred76 posted @ 2011-04-21 1:59 AM |
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Organisers
Posts: 175
Country : India | sudoku - 2011-04-20 11:27 PM
HI,
I have qualified the regional round . Do I still need to participate in this to go to the finals because I got a mail from LMI saying that I am requested to take part in this one. Please clarify
It has been repeated several times, those who have qualified in regional round don't need to participate.
However, they can participate for practice. Practicing Sudoku is harmless and is the only way to improve :- )
Ours Brun is correct. It is so clearly mentioned in the rule pages. If you don't care to read the rules, you will have these kind of questions.
Regarding you qualifying from regional round, have you got any email from LMI regarding the same?
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sudoku
Posts: 4
| sudoku posted @ 2011-04-21 9:14 AM Yes ! and thx for the info.. |
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jaisbansal
Posts: 6
Country : India |
Thanks Fred...  |
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aakash
Country : India | aakash posted @ 2011-04-22 8:43 AM Is their any disadvantage of submitting solutions to multiple sudokus at once at end as compared to submitting answer to each sudoku one by one.
(I prefer to solve more than one sudoku simultaneously and hence need time to submit the first few answers)
Do you note the submission time for each answer? And does it affect the final ranking?
Edited by aakash 2011-04-22 9:10 AM
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Organisers
Posts: 175
Country : India | There is no disadvantage submitting all solutions at the end (See notes below). But make sure that you submit as soon as you are done with all Sudokus.
As noted in IB, if more than one player submit all solutions correctly (that will definitely be the case), their ranking will be determined by 'Last Sudoku Submission time'
We keep track of submission time for each Sudoku, but that doesn't affect the final ranking.
(note 1) Players who are participating first time need to estimate how much time is required to submit per Sudoku. There is nothing worse that solving a Sudoku correctly, but not being able to submit or submitting a wrong answer because of lack of time.
(note 2) It is expected that many players will start submitting towards the end, and the server will be few seconds slow in responding.
Considering these 2 points, it might not be a bad idea submitting every 30 minutes or after solving 4 Sudokus
Edited by Organisers 2011-04-22 9:18 AM
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Organisers
Posts: 175
Country : India | Players who are solving online (directly on flash interface) should submit as soon as they are done with the Sudoku. There is absolutely no need to wait for solving other Sudokus.
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aashay
Posts: 46
Country : India | aashay posted @ 2011-04-22 9:59 AM How will those players who are solving the sudokus on paper submit their solutions? Using the flash interface only or something else? |
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Organisers
Posts: 175
Country : India | aashay - 2011-04-22 9:59 AM
How will those players who are solving the sudokus on paper submit their solutions? Using the flash interface only or something else? Yes, their will be a separate Flash form for paper mode.
Both the submission systems (paper and online solving ) will be enabled 12 hours before the round starts. |
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piyu
Posts: 1
Country : India | piyu posted @ 2011-04-22 11:25 AM Am I right in inferring from the IB that players solving online would need to completely solve a particular sudoku and only then submit it whereas players solving the same sudoku on paper and submitting through another flash interface would need to only enter the solution for the marked rows and columns for that particular sudoku? |
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Organisers
Posts: 175
Country : India | piyu - 2011-04-22 11:25 AM
Am I right in inferring from the IB that players solving online would need to completely solve a particular sudoku and only then submit it whereas players solving the same sudoku on paper and submitting through another flash interface would need to only enter the solution for the marked rows and columns for that particular sudoku?
No.
We'll just check the contents of the marked row and marked column even in case of online solving. Edited by Organisers 2011-04-22 11:36 AM
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debmohanty
Country : India | jaisbansal - 2011-04-19 11:05 PM
Hi,
Can anyone suggest any websites where we could find more of the variants for practice, specially the 'outside sudoku' & 'product frame sudoku'?
Thanks,
Jai Jai, here is one not-so-easy Outside Sudoku - http://motris.livejournal.com/140491.html |
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rakesh_rai
Posts: 774
Country : India | jaisbansal - 2011-04-19 11:05 PM
Can anyone suggest any websites where we could find more of the variants for practice, specially the 'outside sudoku' & 'product frame sudoku'? And, here is one Product frame sudoku: http://www.sachsentext.de/en/node/877 |
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debmohanty
Country : India |
You are late - Fred shared the same grid couple of days back |
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jaisbansal
Posts: 6
Country : India |
Thanks Deb |
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aditya bhansali
Posts: 6
Country : India | Hello everyone, I want to familiarize myself with the flash interface for solving the sudoku online as I have never used it before. Can I get a link for a demo/prototype of the same please which is similar to that coming for tomorrow? |
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Organisers
Posts: 175
Country : India | The flash submission is now enabled - check the submission page
After login, you can see the paper submission mode.
Click on "Solve Examples" to solve some examples and get familiarized Edited by Organisers 2011-04-22 9:27 PM
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Organisers
Posts: 175
Country : India | Password protected Sudoku booklet is uploaded - It has 8 pages. Sudokus are organized as per the Points Table in the IB.
There is no cover page or points table in the booklet |
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aashay
Posts: 46
Country : India | aashay posted @ 2011-04-23 10:31 AM I am having problems with the flash interface. The submit button is not visible. In addition, most of the sudokus are also partially hidden. Can anyone help? |
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debmohanty
Country : India | aashay - 2011-04-23 10:31 AM
I am having problems with the flash interface. The submit button is not visible. In addition, most of the sudokus are also partially hidden. Can anyone help?
which browser are you using and what is your screen size? |
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aashay
Posts: 46
Country : India | aashay posted @ 2011-04-23 11:26 AM debmohanty - 2011-04-23 11:10 AM
aashay - 2011-04-23 10:31 AM
I am having problems with the flash interface. The submit button is not visible. In addition, most of the sudokus are also partially hidden. Can anyone help?
which browser are you using and what is your screen size?
The problem is solved by the latest version of firefox. It was not working in Google Chrome. |
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debmohanty
Country : India | aashay - 2011-04-23 11:26 AM
The problem is solved by the latest version of firefox. It was not working in Google Chrome.
It works for me in Chrome.
Anyway, good that it is working for you in FF.
all the best for the online round. |
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z0mbie
Posts: 1
Country : India | z0mbie posted @ 2011-04-23 11:41 AM Hey guys how different is the ISC2011 challenge form the LMI challenge ?? both are happening today .. |
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rvarun
Posts: 268
Country : India | rvarun posted @ 2011-04-23 1:16 PM Hi. Will we able to login again if my internet connection was disconnected. I mean the answers that were saved earlier remain ?
Because there is a load shedding in my place at 3 to 4 pm. So I am planning to login at 2.30 and note down the puzzles. Solve some puzzles online and submit it. Remaining solve offline and relogin at 4pm and submit. Is that posible ? |
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neerajmehrotra
Posts: 329
Country : India | rvarun - 2011-04-23 1:16 PM
Hi. Will we able to login again if my internet connection was disconnected. I mean the answers that were saved earlier remain ?
Because there is a load shedding in my place at 3 to 4 pm. So I am planning to login at 2.30 and note down the puzzles. Solve some puzzles online and submit it. Remaining solve offline and relogin at 4pm and submit. Is that posible ?
Please ensure you use the same method of submission of answers. For example if you are solving online initially using flash interface then after relogin submit the balance answers also using flash interface by filling only the required row and column in each puzzle. Ofcourse the answers previously submitted will be stored in the server. |
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Organisers
Posts: 175
Country : India | rvarun - 2011-04-23 1:16 PM
Hi. Will we able to login again if my internet connection was disconnected. I mean the answers that were saved earlier remain ?
Because there is a load shedding in my place at 3 to 4 pm. So I am planning to login at 2.30 and note down the puzzles. Solve some puzzles online and submit it. Remaining solve offline and relogin at 4pm and submit. Is that posible ?
yes, possible.
Don't close your browser when you don't have internet connection. Keep solving and submit once you've internet connection back.. |
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yatin_joshi
Posts: 2
Country : India | Hi,
I am trying to submit the Example Sudoku. However, I get the message Example Sudoku cannot be submitted.
Initially Show Examples button was disabled. But, after clicking Submit for Example sudoku, that was enabled.
Can you tell me if this is the correct behaviour? What is the reason for this?
I am using Mozilla Firefox 4.0 browser for the online test. |
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rvarun
Posts: 268
Country : India | rvarun posted @ 2011-04-23 1:23 PM Thank you.. I meant i may need to witch off my system due to no power. I ll relogin at 4 and submit the answers. Thanks again Oganizers. |
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rvarun
Posts: 268
Country : India | rvarun posted @ 2011-04-23 1:27 PM Hi. I logged in to see the examples. Does that mean I am automatically logged in at 2 as there is no logout option. I wish to start at 2.30. |
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neerajmehrotra
Posts: 329
Country : India | Once you are logged in, there is no need to login again. |
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debmohanty
Country : India | rvarun - 2011-04-23 1:27 PM
Hi. I logged in to see the examples. Does that mean I am automatically logged in at 2 as there is no logout option. I wish to start at 2.30. your timer will start only when you click on 'Start Online Round'
You will see password only after clicking 'Start Online Round'
Simply login does not mean anything
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vasugik
Posts: 1
Country : India | vasugik posted @ 2011-04-23 1:57 PM Hi,
I have a query on timings. For ISC qualification it says as 120 minutes, but can we submit the resulta till 16:30 starting from 14:00 which comes to 150 minutes? |
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Ours brun
Posts: 148
Country : France | Hi vasugik,
There is no more than 120 minutes available. The 16:30 limit means that you can start until 14:30 if you want to beneficiate of 2 full hours to solve the puzzles. But if you start at 14:00, you have until 16:00.
Good luck to all indian contestants ! |
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neerajmehrotra
Posts: 329
Country : India | Best of luck to all particpants!!! |
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rvarun
Posts: 268
Country : India | rvarun posted @ 2011-04-23 2:39 PM Is multiple answers possible for a single sudoku |
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debmohanty
Country : India | rvarun - 2011-04-23 2:39 PM
Is multiple answers possible for a single sudoku
No.
Check the Sudoku instructions carefully |
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Ours brun
Posts: 148
Country : France | I have not completed the test yet, but it is very unlikely. Sorry to say that you probably made a mistake.
Didn't see your answer, Deb. :)
Edited by Ours brun 2011-04-23 2:48 PM
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dipanwita
Posts: 1
Country : India | What is lmi test? how to start that? i completed the qualification round |
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Administrator
Country : India | dipanwita - 2011-04-23 4:07 PM
What is lmi test? how to start that? i completed the qualification round
both are same. |
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vineetaggarwal
Posts: 1
Country : India | Hi I forgot to click submit button but filled my answers .. Is my answers submitted by default or not ???.
Whenever I login , It shows my answers , and it seems that my answers have been saved some where ????
Please guide / |
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priygupt
Posts: 17
Country : India | Nice set of Sudokus.. Kudos to organisers! |
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Administrator
Country : India | vineetaggarwal - 2011-04-23 4:32 PM
Hi I forgot to click submit button but filled my answers .. Is my answers submitted by default or not ???.
Whenever I login , It shows my answers , and it seems that my answers have been saved some where ????
Please guide /
We've 9 answers recorded from you |
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gowrishankar
Posts: 13
Country : India | hi,just now i gave in online test .. how is the selection processand wen will the results be announced ?... i could solve only 5 sudokus completely as i m not accustomed to solving on comp...
please guide  |
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gowrishankar
Posts: 13
Country : India | hey how was the online round ? |
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debmohanty
Country : India | gowrishankar - 2011-04-23 5:15 PM
hey how was the online round ?
It was good |
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aditya bhansali
Posts: 6
Country : India | gowrishankar - 2011-04-23 5:15 PM
hey how was the online round ?
Yeah the questions were good, but my performance was not so good  . Could solve only 7 of them. |
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Organisers
Posts: 175
Country : India | Players can check their individual score at http://logicmastersindia.com/ISC2011/score.asp
Note, if any sudoku is marked wrong for you and you think it is correct, please send us a PM by clicking here
Don't post your answer here.
Edited by Organisers 2011-04-23 5:39 PM
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rvarun
Posts: 268
Country : India | rvarun posted @ 2011-04-23 6:06 PM I was not able to relogin after 4 as the server was very busy.,. As a result I was not able to submit the answers. Anyway it was a good set. Great job organizers.
I ll try next year. |
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aditya bhansali
Posts: 6
Country : India | |
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Organisers
Posts: 175
Country : India |
Aditya try from the same browser from which you submitted. |
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adityasaraf007
Posts: 45
Country : India | We need to again login and press the "Start Online Round" Button. Then go to the result page. |
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Organisers
Posts: 175
Country : India | adityasaraf007 - 2011-04-23 7:24 PM
We need to again login and press the "Start Online Round" Button. Then go to the result page. yes, that will work if you are trying from a different browser (or different machine ) Edited by Organisers 2011-04-23 7:32 PM
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sameeragrawal
Posts: 3
Country : India | Could score only 211 :(.How abt others? |
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gowrishankar
Posts: 13
Country : India | i scored 110,i m not used to online solving so got lesss points..and few variant sudokus wer new to me,,
its awesome sudokus,great work organisers.. well done,i could not get selected in regional round in Bangalore UTSAV 2011..next year again i will try ....all the best guys.
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debmohanty
Country : India | gowrishankar - 2011-04-23 10:57 PM
i scored 110,i m not used to online solving so got lesss points..and few variant sudokus wer new to me,,
its awesome sudokus,great work organisers.. well done,i could not get selected in regional round in Bangalore UTSAV 2011..next year again i will try ....all the best guys.
GS, we have selected the most common variants for this round. Apart from Classic Sudokus, it is very important to get familiar with other variants. In most competitions, variants will have much more points than Classics.
As advertised at many other places in this site, we conduct 1 Sudoku test every month, try to participate and I'm sure they will give you lot of practice.
Deb
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gauravkorde
Posts: 27
Country : India | Hi
As expected nice and tough puzzles.... needs a lot of practice
i can feel being out of touch!! :| |
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vopani
Posts: 739
Country : India | vopani posted @ 2011-04-24 12:41 PM gauravkorde - 2011-04-24 2:58 AM
Hi
As expected nice and tough puzzles.... needs a lot of practice
i can feel being out of touch!! :|
I warned you :D |
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gowrishankar
Posts: 13
Country : India | wot is the significance of the two thick arrow marks which wer given in every sudoku ? r de any help in arriving at soln quicker ? |
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neerajmehrotra
Posts: 329
Country : India | gowrishankar - 2011-04-24 1:07 PM
wot is the significance of the two thick arrow marks which wer given in every sudoku ? r de any help in arriving at soln quicker ?
Please read the instructions carefully. The marked row and column are to be entered as the answers. |
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pboominathan
Posts: 1
Country : India |
Though I scored 101 points only, I would like to know my rankings. This is the first time I have attempted this competition. I have been following with those sudokus published in the newspapers & solved them rapidly, but this contained numerous variants. This needs a lot of practice. Please let me know if there are any publications / books which can be bought & practiced.
Thanks,
P.Boominathan |
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neerajmehrotra
Posts: 329
Country : India | pboominathan - 2011-04-24 2:32 PM
Organisers - 2011-04-17 8:15 PM
Here is the link for Instruction Booklet that lists points table and list of Sudokus.
Link - http://logicmastersindia.com/ISC2011/onlineQ.asp
Please post any doubts in this thread only.
Though I scored 101 points only, I would like to know my rankings. This is the first time I have attempted this competition. I have been following with those sudokus published in the newspapers & solved them rapidly, but this contained numerous variants. This needs a lot of practice. Please let me know if there are any publications / books which can be bought & practiced.
Thanks,
P.Boominathan
Just wait till Tuesday when the results will be announced. You will come to know about your performance and your ranking also. You can browse various websites where these variants are available. Regular monthly tests are conducted on this website for sudoku enthusiasts, i would advise you to play regulary here on this website. Edited by neerajmehrotra 2011-04-24 2:38 PM
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gogreen
Posts: 2
Country : India | gogreen posted @ 2011-04-24 4:05 PM neerajmehrotra - 2011-04-24 2:21 PM
gowrishankar - 2011-04-24 1:07 PM
wot is the significance of the two thick arrow marks which wer given in every sudoku ? r de any help in arriving at soln quicker ?
Please read the instructions carefully. The marked row and column are to be entered as the answers.
oh my god! it was a big mistake,dint read instructions completely cause i wer i a hurry ,,, now i got the point, squares pointed by arrows wer THE answers just needed to be filled up b4 clicking submit ..! , i wasted time solving the whole sudoku completely... anyways will give it a try next time for sure.. nice hard puzzles ,, these are stilllll haunting me really.. |
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debmohanty
Country : India | gogreen - 2011-04-24 4:05 PM
neerajmehrotra - 2011-04-24 2:21 PM
gowrishankar - 2011-04-24 1:07 PM
wot is the significance of the two thick arrow marks which wer given in every sudoku ? r de any help in arriving at soln quicker ?
Please read the instructions carefully. The marked row and column are to be entered as the answers.
oh my god! it was a big mistake,dint read instructions completely cause i wer i a hurry ,,, now i got the point, squares pointed by arrows wer THE answers just needed to be filled up b4 clicking submit ..! , i wasted time solving the whole sudoku completely... anyways will give it a try next time for sure.. nice hard puzzles ,, these are stilllll haunting me really..
And would you mind sharing with us why you have 2 active userids? |
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gogreen
Posts: 2
Country : India | gogreen posted @ 2011-04-24 4:36 PM welll that was not intensional . i wanted to attempt today's puzzle round too. and im novice to sudoku and online solving,thought i need to have different login Id for Puzzles so registered again .. i these sudokusim going crazy man..really hard ones...
is it a mistake to have two ids ?.. any problem ? just clarifying...no harsh feelingss.! |
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debmohanty
Country : India | gogreen - 2011-04-24 4:36 PM
welll that was not intensional . i wanted to attempt today's puzzle round too. and im novice to sudoku and online solving,thought i need to have different login Id for Puzzles so registered again .. i these sudokusim going crazy man..really hard ones...
is it a mistake to have two ids ?.. any problem ? just clarifying...no harsh feelingss.!
I wouldn't buy that argument.
Anyway, I request you (and everyone else ) not to have multiple ids. |
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Organisers
Posts: 175
Country : India | You can now check others' score as well in the score page - http://logicmastersindia.com/ISC2011/score.asp
Note that this just shows the complete list. Official scores (submissions before 4:30PM Saturday ) will be published soon.
Note : The round is still running, hence the results are not public.
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upendra
Posts: 2
Country : India | upendra posted @ 2011-04-25 1:34 AM Hi Admin,
During the test time, In the last moment while submitting the answer for diagonal sudoku i typed 1 instead of typing 2. But after realizing that mistake, immediately i enterd a backspace and entered "2". After that i submitted the answer. But i did not notice the solutions after that last submission(was busy in trying out the other sudokus). Now in the site still i am seeing "1" in the place of "2".
Please consider this request if you have the mechanism for keep tracking of each and every action the user is doing.
Thanks,
Upendra |
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Administrator
Country : India | upendra - 2011-04-25 1:34 AM
Please consider this request if you have the mechanism for keep tracking of each and every action the user is doing.
There is no mechanism to keep track of all the typing.
As you will see later, several players have done these kind of mistakes. I've to ask you (and others ) to be very careful while entering the answer keys. There is nothing worse than solving a Sudoku correctly, but entering the solution wrongly. |
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upendra
Posts: 2
Country : India | upendra posted @ 2011-04-25 10:07 AM Initially i did the typing mistake but after that with in 5 seconds i did a backspace and entered the right one which did not get reflected over there.
Anyway thanks for the quick response. |
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Organisers
Posts: 175
Country : India | |
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priygupt
Posts: 17
Country : India | When will the national finals be held? Where? Would you conduct finals for ISC & IPC on same/consecutive date/s & venue? |
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nikunj.agarwal007
Posts: 6
Country : India | sir,this is to bring to your kind information that i nikunj agarwal participated in INDIAN SUDOKU CHAMPIONSHIP and inspite of MY SCORE BEING 199 I AM NOT SELECTED AMONG THE TOP 15 PARTICIPANTS rather the guys scoring less than me-their score being around 187 are selected....May i know the reason for the same.........
11 chasing_dreams Sunil Singhal 198 Qualified
12 shivin garg shivin garg 187 Qualified
13 abhishekn abhishekn 185 Qualified
14 upendra upendra reddy 167 Qualified |
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Organisers
Posts: 175
Country : India | nikunj.agarwal007 - 2011-04-25 5:31 PM
sir,this is to bring to your kind information that i nikunj agarwal participated in INDIAN SUDOKU CHAMPIONSHIP and inspite of MY SCORE BEING 199 I AM NOT SELECTED AMONG THE TOP 15 PARTICIPANTS rather the guys scoring less than me-their score being around 187 are selected....May i know the reason for the same.........
11 chasing_dreams Sunil Singhal 198 Qualified
12 shivin garg shivin garg 187 Qualified
13 abhishekn abhishekn 185 Qualified
14 upendra upendra reddy 167 Qualified
Sure I can tell you the reason. Before that let me ask one question.
When did you start the "Online Round"? date and time?
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nikunj.agarwal007
Posts: 6
Country : India | date-25/04/2011 and time is around 11.00 a.m. |
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Administrator
Country : India | nikunj.agarwal007 - 2011-04-25 5:42 PM
date-25/04/2011 and time is around 11.00 a.m.
Perfect.
Do you still need an answer?
Check the rules here or the IB or the notes in results summary. |
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nikunj.agarwal007
Posts: 6
Country : India | thanks...i didn't pay an attention to the word "OFFICIAL"
I only took a notice on -
"
LMI April Sudoku Test
Submissions will be allowed until 25-Apr-2011 16:00 IST (GMT +5:30)."
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Ziti
Posts: 42
Country : United States | Ziti posted @ 2011-04-26 12:02 PM Hello everyone,
Thanks to the organizers for a nice set of puzzles. I greatly enjoyed many of them. Classic Sudoku 4 had a nice hurdle to clear, and I recall the Consecutive Sudoku and Killer being special as well.
Would someone be so kind to list a logical series of steps for the Product Frame puzzle? I spent a great deal of time on it and do not see any way to proceed.
Thanks again, and congratulations to the top performers. |
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debmohanty
Country : India | Zason, the Product Frame was indeed tough (but it was the highest pointer as well ) and it proved to be killer for many solvers.
I'm not sure if you didn't get the start or you get struck in the middle. But here are some steps to start with the puzzle.
If you are stuck at a certain point after solving, let me know so that I can explain from there.
First the obvious step, but it doesn't lead to much.
Next - 36 at right of Row 8 can't have 4. So it can't have 9 as well. So 36 will be (2*3*6 )
Now, we have 12 at bottom of Col2 and 24 at left of Row9.
12 = (1*2*6 ) or (1*3*4 )
24 = (1*3*8 ) or (1*4*6 ) or (2*3*4 )
There are lot of common digits among them. To begin with R9C2 can be 1 or 2 or 3 or 4 or 6. But 3 / 4 / 6 are ruled immediately. So R9C2 can be 1 or 2.
On closer look, R9C2 can't be 1. [ If it were 1, 12 has to be 1*3*4 because 2 and 6 are already present in row8 towards the right. if 12 is 1*3*4, there is no way to satisfy 24 ]
So R9C2 = 2
I think this was a pretty difficult step.
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debmohanty
Country : India | |
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debmohanty
Country : India | Now 18 at bottom of Col9
18 = 1*2*9 [ 1 * 3 * 6 is rejected ]
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debmohanty
Country : India | Now the 56 at right of row1, it can't be 1*7*8
If it is 1*7*8, then (R2C5,R3C5 ) will be (1,8 ), and that means 1 or 8 has to be
appear at (R2C1,R2C2,R3C3 ) that is not possible since the product R2C1*R2C2*R3C3=84
So 56 = 2*4*7
That gives us lot of opening.
So 84 on left of row2 = 7*2*6 (because 4 is already at R2C6 )
18 at top of col1 is 3*1*6
40 at left of col5 is 5*2*4
R5C8 can't be 3 [ if it is 3, R8C8 will be 6 and there is no way to make 12 at top of Col8]
In the last step, R4C9 can't be 7. If it is 7, R1C9 will be 4 and R4C8 will be 2 so there is no way to satisfy 12 at top of Col8 without 2 and 4.
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Ziti
Posts: 42
Country : United States | Ziti posted @ 2011-04-27 11:11 AM Thank you very much Deb. This is the step I missed -- the 178 not being allowed because of what it does with the {18} in the 2nd row and 2nd box. This single step allowed me to finish the rest of the puzzle in about 5 more minutes. I should not have missed this, and the puzzle is much more clever than I had originally credited it as being.
Great contest, thanks again. |
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gowrishankar
Posts: 13
Country : India | hi deb :
i could solve all those variants sudokus (after taking a print out and juggling with it for more than a day) except that V and X type sudoku,, can u plz guide me through the steps ? and
i took 3 hours to solve killer sudoku,, is there any strategy to solve it quicker ? would u mind sharing the tricks ?
thanks in advance ..! |
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debmohanty
Country : India | Zason, Glad that you liked the Product Frame Sudoku (and others too). In this puzzle one has to focus on 2 given products at the same time (unlike easy Product/Sum frame puzzles where one has work out single product / sum). The step you missed (and the 12/24 in box7 to begin with) were difficult steps, and this puzzle turned out to be the differentiator at the top, which is probably not ideal from a competition point of view.
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debmohanty
Country : India | gowrishankar - 2011-04-27 8:17 PM
hi deb :
i could solve all those variants sudokus (after taking a print out and juggling with it for more than a day) except that V and X type sudoku,, can u plz guide me through the steps ? and
i took 3 hours to solve killer sudoku,, is there any strategy to solve it quicker ? would u mind sharing the tricks ?
thanks in advance ..!
The Killer Sudoku was difficult for beginners and little tricky for experienced solvers. It will be tough to list all the steps. I'll just post the beginning steps, and some tricks that beginners may not be aware of.
First the 30 at R6C3 and then the 23 at R5C2 gives you lot of pencil marks and 7 at R6C3
Now the maximum sum of R4C2 and R4C3 is 9 (4+5 ). so 26 at R3C2 will be (4+5 )+ (8+9 )
So (1,2,3 ) at (R4C1,R5C1,R6C1 )
Now, this is the step beginners are likely to miss. Lets assume R6C1=X (X can be 1 or 2 or 3), so where does X appear in Box7.
The only place for X in box7 is R9C2.
Since the sum at R8C1 is 20, X has to be 3.
Similar tricks can be be used in top part of the grid later (note that the grid is symmetric except 2 cages )
One more In-Out trick that can be useful later is the 45 at R3C4.
So if R3C4 is A, where does A appear in Box5. The only place is R4C6. Similarly for B at R7C6.
I'm not going to list all the steps, but look at 24 at R4C8, 11 at R8C6, 10 at R3C6.
Also, check that you can find the value of R3C1 and R9C4 with simple addition/subtraction.
So, challenge yourself again to solve it in 20 minutes :- )
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debmohanty
Country : India | The XV sudoku was little different because there were only few X / V marks on the grid. So box 7 and box 3 can be filled a lot easily. [ For example, R7C2 can be 7 or 8. But it can't be 7 because then R8C3 will be 2 (and 2 is already present in column 3). So R7C2=8 ]
After that all you need to remember is 2 digits can't be consecutive if their sum is 5 or 10 9 (since no more X or V are marked in the grid).
It is really an easy puzzle and I ask you to try it again. if you still face issues, post here. |
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rakesh_rai
Posts: 774
Country : India | gowrishankar - 2011-04-27 8:17 PM
i could solve all those variants sudokus (after taking a print out and juggling with it for more than a day) except that V and X type sudoku,, can u plz guide me through the steps ? Gowrishankar: For XV sudoku, to add to Deb's points, you must realize that the inverse rule is also true, i.e., if there is no V between two cells, the sum cannot be 5, and similarly for X. Here are a few (more than a few, actually ) steps to get you started. The red cells are all obtained by XV rules and the blue cells based on normal sudoku rules. After this I suggest you proceed on your own. For example, if you look at the left bottom corner cell, it cannot be a 9 (..as then it violates the rule for X ) and so on. Do let us know if you are still stuck somewhere.
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gowrishankar
Posts: 13
Country : India | hi deb,
the first few steps which u explained to solve killer one was suffice,it eases to solve the rest ,especially i dint know the technique by solving it this way,,
i dint get wot u said below :
"After that all you need to remember is 2 digits can't be consecutive if their sum is 5 or 10 9 (since no more X or V are marked in the grid). "( copied from ur EARLIER reply to my query)
my point is : 2+3=5 and 2&3 are consecutive ryt ? y cant de go in cells marked with V,,
hope u don mind to rectify my mistake in query...!
hi rai:
i could solve those cells given for X and V da, however ur inverse law i m not getting .
"if there is no V between two cells, the sum cannot be 5, and similarly for X" how ?
u mean t say in a box if ter is no V between any two cells ,then those two cells wont be occupied by digits adding to 5? i dint get ,,,,dont mind to elaborate....
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debmohanty
Country : India | gowrishankar - 2011-04-29 9:08 AM
i dint get wot u said below :
"After that all you need to remember is 2 digits can't be consecutive if their sum is 5 or 10 9 (since no more X or V are marked in the grid). "( copied from ur EARLIER reply to my query)
my point is : 2+3=5 and 2&3 are consecutive ryt ? y cant de go in cells marked with V,,
consecutive is a bad word to use. I meant adjacent cells.
My point was this (and Rakesh was explaining the same thing )
If there is no v between 2 adjacent cells, the sum of 2 digits can't be 5. So 2 and 3 can't be placed in adjacent cells if there is no V. Similarly, 1 and 4
Same rule applies for X as well. |
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gowrishankar
Posts: 13
Country : India | now the point is clear to me ,, adjacent instead of consecutive,got it..,,!
thanks Deb:
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ravichaluvadi
Posts: 4
Country : India | in the page of ALL QUALIFIERS some are marked as registered and some are not. may i know what it means? i have registered in the website but it's not showing in the all qualifiers column.... may i know what that registered column is meant for? |
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Neeraj
Posts: 12
Country : India | Neeraj posted @ 2011-05-06 6:40 PM hey can't we have the finals online?
is it necessary to be in Banglore for the finals?? |
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vopani
Posts: 739
Country : India | vopani posted @ 2011-05-06 10:53 PM Neeraj - 2011-05-06 6:40 PM
hey can't we have the finals online?
is it necessary to be in Banglore for the finals??
The World Sudoku Championship is an offline event where every participant solves with paper-pencil. So, to get the best players, it is better to conduct the finals in a replicative format of the WSC. Hence, the need of an offline event.
Besides, there is no control over players in the online mode, and players 'may' use unfair means. |
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channa
Posts: 7
Country : India | channa posted @ 2011-05-09 1:50 AM my point value for irregular sudoku is very low( took nearly 40 min to solve 59 pointer)...i think i am missing some basic steps used for solving it...could people let me know the methods they use?? |
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Ujjawal Agarwal
Posts: 2
Country : India | why is it that some people are registered and some aren't ???
I do understand that some might have created an a/c on the site but it is necessary really to have one?? |
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Ujjawal Agarwal
Posts: 2
Country : India | I too am facing the same dilemma!!!
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purifire
Posts: 460
Country : India | Ujjawal Agarwal - 2011-05-10 12:56 PM
I too am facing the same dilemma!!!
First thing Ujjawal, are you one person or two??? when you say I too am facing the same dilemma, we assume its 2 people with same id...
Registered users are those who are registered at the LMI site... for this years ISC/IPC it doesnt make a difference if you are registered or not since a lot of people who qualified at various offline regional rounds need not be members at LMI.
You need to be registered only IF you decide to take part in any online test/competition being held at the LMI site.
Rishi |
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Organisers
Posts: 175
Country : India | Thanks Rishi for explaining.
Just to repeat, the registered field does not have any weightage. It is just a tool for us to track.
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Organisers
Posts: 175
Country : India | Ujjawal Agarwal - 2011-05-10 12:54 PM
why is it that some people are registered and some aren't ???
I do understand that some might have created an a/c on the site but it is necessary really to have one??
If that matters, your name should be showing as registered now.
You registered today, there was no way we could show you as registered earlier. |
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Aryansh_Ub
Posts: 2
Country : India | i haven't yet recieved the verification email for IPC-2011. And in the qualifiers page, mine status too is showing unregistered. i have registered in this website 2 months ago.
again, Please send me the verification e-mail for IPC-2011.
Suryabhan Rathaur |
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Organisers
Posts: 175
Country : India | Aryansh_Ub - 2011-05-28 1:53 PM
i haven't yet recieved the verification email for IPC-2011. And in the qualifiers page, mine status too is showing unregistered. i have registered in this website 2 months ago.
again, Please send me the verification e-mail for IPC-2011.
Suryabhan Rathaur email resent. check and reply. |
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Aryansh_Ub
Posts: 2
Country : India | ok got the mail.
thanx. |
ISC2011 - Online Qualification on 23rd April
