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Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier
   LMI Tests -> Sudoku Mahabharat79 posts • Page 3 of 4 • 1 2 3 4
lrani
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-14 8:22 AM (#19345 - in reply to #19255) (#19345) Top




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Can someone help explain me how to solve the Repeated neighbours 9X9 puzzle. I understood the rule and I was able to identify the orthogonally connected cells which will have same values but still couldnt solve it..
Found this one to be too tough....
debmohanty
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-14 8:42 AM (#19346 - in reply to #19343) (#19346) Top



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rakesh_rai - 2015-09-14 8:00 AM

debmohanty - 2015-09-14 6:05 AM

rakesh_rai - 2015-09-14 12:07 AM
As noted by Richard, technically, Renban and Quadruple do not necesarily belong to 'Neighbours' theme.
Please elaborate.

The statement assumes Neighbours being interpreted as "direct relationships between two orthogonal connected cells"
Even with that definition, Quadruple fits fine in this theme. If we restrict to "Orthogonal neighbours", even Thermo does not fit into this theme because the puzzles in the contest use relationships between diagonal neighbours.

In any case, in my opinion, Neighbours could either be orthogonal or diagonal.
An LMI player
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-14 8:54 AM (#19347 - in reply to #19255) (#19347) Top


 How well did the variants represent the theme of the test ? variations represented the theme well
 What was your opinion of the distribution of easy/hard puzzles? Too many medium difficult puzzles
 What did you think about the puzzle quality of the test? Very nice
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


davep
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-14 10:53 AM (#19348 - in reply to #19255) (#19348) Top




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 How well did the variants represent the theme of the test ? variations represented the theme well
 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Fairly Nice
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


Repeated neighbors give me a hard time for some reason. Enjoyed the test as always!
debmohanty
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-14 11:12 AM (#19349 - in reply to #19334) (#19349) Top



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Location: India
prasanna16391 - 2015-09-13 12:17 PM

devarajand - 2015-09-13 10:43 AM

Prasanna's class stamped all over, including IB


Thanks, but the IB is mostly by Deb :) The Repeated Neighbours 9x9 and the Thermo 9x9 at least are from previous contests I remember. Much easier to re-use than re-write for IBs.



Most of the examples are from previous LMI contests.

Source of Sudokus in this IB :

I created following examples
6X6 Classics : originally for IB of SM first round last year
8X8 Classic : originally for IB of SM first round of SM last year
9X9 Classic 1,2,3 : originally for LMI Beginners' Sudoku Test - August 2012
Thermo 6X6 : originally for LMI Screen Test #3
Thermo 9X9 : originally for Sudoku Grand Prix Indian Round 2013
Touchy 6X6 : originally for LMI Screen Test #3
Touchy 9X9 : originally for IB of mock12
Repeated Neighbours 9X9 : I created for Sudoku Grand Prix Indian Round 2013
New Example of Quadruple 6X6 : originally for LMI Screen Test #3
Renban 9X9: originally for example of Beginners Sudoku Contest

Repeated Neighbours 6X6 : Prasanna created

Examples for Quadruple 6X6, 9X9 are taken from Times Sudoku Championship IB. I don't recollect who created them.
Renban 6X6 : I can't recollect where I took this from

The new example for Quadruple 6X6 was created by me for LMI Screen Test #3





Edited by debmohanty 2015-09-14 11:13 AM
prasanna16391
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-14 12:00 PM (#19350 - in reply to #19255) (#19350) Top


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Regarding the variant choices, last year's contest had Renban and Quad Max, and there weren't any specified notes that these didn't fit the theme, so I am a bit surprised to see it now that they are repeated (well, I'm equating Quad Max to Quadruple in terms of relation to neighbours). Either way, I think it is mainly an issue of definition here. I wouldn't limit Neighbours to a 1-1 connection, but anything to do with neighbourhood of cells. This can mean multiple cells defined by a common factor, or cells which are next to each other interacting. Just as a real-world example, if a person stays in an apartment on the same floor as 5 other apartments, all 5 would be called neighbours and together they can be called a neighbourhood. Of course, definitions can differ from individual to individual, this is just the way that we looked at it last year when we were coming up with the categories.
Richard
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-14 2:44 PM (#19356 - in reply to #19350) (#19356) Top


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prasanna16391 - 2015-09-14 12:00 PM

Regarding the variant choices, last year's contest had Renban and Quad Max, and there weren't any specified notes that these didn't fit the theme, so I am a bit surprised to see it now that they are repeated (well, I'm equating Quad Max to Quadruple in terms of relation to neighbours). Either way, I think it is mainly an issue of definition here. I wouldn't limit Neighbours to a 1-1 connection, but anything to do with neighbourhood of cells. This can mean multiple cells defined by a common factor, or cells which are next to each other interacting. Just as a real-world example, if a person stays in an apartment on the same floor as 5 other apartments, all 5 would be called neighbours and together they can be called a neighbourhood. Of course, definitions can differ from individual to individual, this is just the way that we looked at it last year when we were coming up with the categories.


In the Neighbours-round of 2014/2015 I had the same feeling, but less strong, so I didn’t write about it then. The reason I mentioned it this time, was to explain the orange colored result of my choice to say the variants didn’t represent the theme well.
In my opinion, the neighbours theme sees on relations between two neighbouring cells, where the number in one cell has a direct influence on (the possibilities in) the other cell. There are numerous variants that meet this criterium: (non)consecutive, kropki, odd/even-consecutive, answer eight, give me five, XV, next to nine, even sandwich, greater than are the first ones that cross my mind. Touchy and Repeated Neighbours fit well in that theme too.
It is all a matter of personal taste of course, and maybe I have a too narrow view on it. And the last thing I want is make a big issue of it. What counts most is that the variants were fantastic and that I enjoyed them very, very much. Knowing the writing skills of Prasanna, I wasn’t surprised about this, by the way. ?
An LMI player
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-14 2:50 PM (#19357 - in reply to #19255) (#19357) Top


 How well did the variants represent the theme of the test ? variations represented the theme well
 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


prasanna16391
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-14 3:34 PM (#19359 - in reply to #19356) (#19359) Top


PR 2020 (Evergreens) Author

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Richard - 2015-09-14 2:44 PM

(non)consecutive, kropki, odd/even-consecutive, answer eight, give me five, XV, next to nine, even sandwich, greater than are the first ones that cross my mind.


The problem is that we have a separate category of Converse and one Outside category, where most of the variants you named would fit well. Greater Than is the same as Thermo logically, with presentation differences, maybe Thermo has the added diagonal inequality. In general my Greater Thans would be same as a Thermo with just straight Thermos :)

It is definitely not a big issue, and I'd rather that some discussion comes of it and we get to know different perspectives when thinking of the categories next time. I'd say this one is just a matter of difference in definition of what Neighbours are though.

Another thing to consider is if a Renban doesn't come into this round it won't fit in any other since I wouldn't call it a standard variant (not for a beginner anyway) and it isn't Irregular, Odd Even, Converse, Math, Outside or Twisted Classic either. Our definition of Neighbourhood just allows there to be more difference between this one and a converse round and allows for more variety within the category. Maybe we just need to make it clearer when we present a future Neighbours round that it features 'Neighbourhood' and not 'Orthogonal Neighbours'.

I agree that the most important part is that the contest is enjoyable and I'm glad you enjoyed it :) I should say that 4 of the Sudokus were by Aditi. I will add more detail to that at the end of the contest.
margareta456
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-14 4:43 PM (#19361 - in reply to #19255) (#19361) Top




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 How well did the variants represent the theme of the test ? variations represented the theme well
 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


carburra
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-14 8:08 PM (#19364 - in reply to #19255) (#19364) Top





Posts: 10

Location: india
 How well did the variants represent the theme of the test ? variations represented the theme well
 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


rajeshk
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-14 8:25 PM (#19365 - in reply to #19255) (#19365) Top


WSPC Organizer

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 How well did the variants represent the theme of the test ? variations represented the theme well
 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


An LMI player
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-14 11:29 PM (#19368 - in reply to #19255) (#19368) Top


 How well did the variants represent the theme of the test ? variations represented the theme well
 What was your opinion of the distribution of easy/hard puzzles? Too many medium difficult puzzles
 What did you think about the puzzle quality of the test? Fairly Nice
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


neerajmehrotra
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-14 11:58 PM (#19369 - in reply to #19255) (#19369) Top




Posts: 327
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Location: India
 How well did the variants represent the theme of the test ? variations represented the theme well
 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


Thanks a lot Prasanna and Aditi for nice set of sudokus - a real entertainment. I too agree with Kishy that the puzzles (especially the repeated neighbours and touchy) were little tough for the beginners. Infact I was totally clueless about both the versions of repeated neighbours and would request a step by step solution after the end of test.

Edited by neerajmehrotra 2015-09-15 12:04 AM
An LMI player
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-15 12:24 AM (#19370 - in reply to #19255) (#19370) Top


 How well did the variants represent the theme of the test ? variations represented the theme well
 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Fairly Nice
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


greenhorn
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-15 12:40 AM (#19371 - in reply to #19255) (#19371) Top


Wacky Slovak Classics Author

Posts: 150
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 How well did the variants represent the theme of the test ? variations represented the theme well
 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Fairly Nice
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


Administrator
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-15 6:46 AM (#19372 - in reply to #19255) (#19372) Top


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With no more participants, this episode of Sudoku Mahabharat is over.

Here is the link to Cumulative Scores - http://logicmastersindia.com/SM/2015-16-ranks.asp
Administrator
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-15 8:39 AM (#19373 - in reply to #19255) (#19373) Top


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Password removed and solutions appended.
rvarun
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-15 11:21 AM (#19374 - in reply to #19255) (#19374) Top




Posts: 268
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Location: India
 How well did the variants represent the theme of the test ? variations represented the theme well
 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


A great round by Prasanna and Aditi. I really enjoyed the round inspite of the wrong time I took the test. The round was harder when compared with the first round but this will be a solving experience on its own for everyone. My favourite among the attempted ones was the Touchy 15, which I broke once and missed out on submitting in the last minute. Waiting for the next round.
witty
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-15 12:48 PM (#19377 - in reply to #19255) (#19377) Top




Posts: 16

Location: India
 How well did the variants represent the theme of the test ? variations represented the theme well
 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


prasanna16391
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-15 2:21 PM (#19379 - in reply to #19255) (#19379) Top


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Before I start summarizing the contest I want to make a note. Some participants' results are showing a sudden and drastic spurt of improvement between Round 1 and Round 2. There is a possibility that must be considered, that some of this is via unfair means. Just remember that if you make it to the top 50 you will be invited to an offline final, and the final selection is made there for the team and for the Sudoku Mahabharat winners, so there is no point in using unfair means in the online rounds. You will also be costing someone deserving a spot in the offline finals.

If you have used unfair means in this or the earlier round, you can step up now and mention it, and have a clean slate for the remaining 6 rounds.

I will be posting some thoughts on the contest and a rough walkthrough for Repeated Neighbours by the end of the day. Thank you all for participating!
vu2hrh
Subject: RE: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-15 2:25 PM (#19380 - in reply to #19255) (#19380) Top




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i vu2hrh rudresh had participated and submitted on 13 september but my score is not appearing in leadership board please clarify

rudresh h
Administrator
Subject: RE: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-15 2:31 PM (#19381 - in reply to #19380) (#19381) Top


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Location: India
vu2hrh - 2015-09-15 2:25 PM

i vu2hrh rudresh had participated and submitted on 13 september but my score is not appearing in leadership board please clarify

rudresh h
I can see you at rank 278.

Edited by rakesh_rai 2015-09-15 4:34 PM
vu2hrh
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-15 4:29 PM (#19382 - in reply to #19255) (#19382) Top




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please send link to see it
rakesh_rai
Subject: Re: Neighbours - 12th-14th Sep - Sudoku Mahabharat & ISC Qualifier @ 2015-09-15 4:35 PM (#19383 - in reply to #19382) (#19383) Top



Mean Minis (2020) Author

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vu2hrh - 2015-09-15 4:29 PM

please send link to see it
http://logicmastersindia.com/SM/201509/score.asp
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