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Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier
   LMI Tests -> Sudoku Mahabharat60 posts • Page 1 of 3 • 1 2 3
Administrator
Subject: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-06 5:59 PM (#19833) (#19833) Top


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Location: India




Link for rules and other details about Sudoku Mahabharat : http://logicmastersindia.com/SM/2015-16.asp
Instructions for Math Variations : http://logicmastersindia.com/SM/201511/

akash.doulani
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-07 11:50 AM (#19842 - in reply to #19833) (#19842) Top


Converse & Twisted Classics (SM 18) Author

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Does converse rule apply in division Sudoku and equal product Sudoku?
aditi2302
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-07 11:53 AM (#19843 - in reply to #19842) (#19843) Top


Neighbours Variations (SM 15/16) Author

Posts: 18

Location: India
It doesn't apply to equal product Sudoku.

Edited by aditi2302 2015-11-07 11:55 AM
vopani
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-07 12:55 PM (#19846 - in reply to #19842) (#19846) Top


WSPC Organizer

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akash.doulani - 2015-11-07 11:50 AM

Does converse rule apply in division Sudoku and equal product Sudoku?

No and No. For Equal Product, it is very clearly mentioned in the instructions.
Btw, you may enjoy the Converse round authored by Rakesh/Harmeet on 13th-15th Feb, 2016 :-)
mihiryadav
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-07 10:46 PM (#19858 - in reply to #19833) (#19858) Top




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What are converse rules?
prasanna16391
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-07 10:53 PM (#19859 - in reply to #19858) (#19859) Top


WSPC Organizer

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mihiryadav - 2015-11-07 10:46 PM

What are converse rules?


Look at last year's converse round - http://logicmastersindia.com/lmitests/?test=SM201503
Swagatam
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-09 10:51 PM (#19881 - in reply to #19833) (#19881) Top




Posts: 33
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Solutions of all Standard sudokus in the math variations IB are different from the example questions. Please check.
perupps
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-09 11:01 PM (#19882 - in reply to #19833) (#19882) Top




Posts: 6

Location: india
Can we solve example/Instruction booklet online? If so, how
Administrator
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-10 1:39 AM (#19883 - in reply to #19881) (#19883) Top


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Location: India
Swagatam - 2015-11-09 10:51 PM

Solutions of all Standard sudokus in the math variations IB are different from the example questions. Please check.
It is a good time to remove the solutions of the Standard Sudokus from the IB. Done that.
Administrator
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-11 7:02 AM (#19887 - in reply to #19882) (#19887) Top


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Location: India
perupps - 2015-11-09 11:01 PM

Can we solve example/Instruction booklet online? If so, how
You can now solve few examples on the submission site online ( http://logicmastersindia.com/SM/201511/?online=1 )
bob
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-14 1:43 AM (#19921 - in reply to #19833) (#19921) Top




Posts: 45
2020
Location: USA
 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


Really fun variations. Thanks for monthly diversions.
margareta456
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-14 2:29 AM (#19922 - in reply to #19833) (#19922) Top




Posts: 29
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Location: Poland
 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 hard 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? Many puzzles were worth too much or too little


An LMI player
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-14 3:54 AM (#19923 - in reply to #19833) (#19923) 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 hard 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? Many puzzles were worth too much or too little


kishy72
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-14 5:12 AM (#19924 - in reply to #19833) (#19924) Top




Posts: 366
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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? Too many hard 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


Phew ! That was a nice ,interesting and a really hard set.Some of the ideas both from a solving perspective and a construction point of view were really novel.The bunching of clues in Group sum 6X6,the really neat layout of Tiles in Killer(7) to name a few....

I feel compelled to describe my experience of the test a bit in detail as it was something of a roller-coaster ride.

I started with the Division 6X6,slipped on it and after that it was smooth sailing through Sum Frame and Killer until I hit the vicious Equal product(13).

I was one of the poor victims of missing the possibility that a 6 can be in Box 9 in R7C7.I proceeded by missing that possibility and broke much later and was left wondering where I might have gone wrong.Kept starting again,kept missing that possibility and kept wondering until eventually I came to the conclusion that I needed to be workman-like and eliminate digit by digit.That's when to my devastation and amusement (to a little extent) that I
realized that I had missed 6 in R7C7.With these kind of sudokus, I realize that it might be much better to have pre-prepped notes of all possibilites of Equal products...

So that was it! 28 mins lost on a single sudoku.Then I rushed through the Classics without much difficulty albeit with a lot of panic after having lost a lof of time.

Came to the Group Sum genre at last and was as lost as a blind man in a dark forest at night time.Was utterly clueless where to start seeing that bunch of clues in between.Kept shuttling between Group sum(15) and Group sum(7)as if I were playing a simul chess game like a Grandmaster.

Realizing that, that is a highly futile attempt which will yield me little in the way of points ,I decided to confront the 'bunch sudoku' and had a highly lucky guess going right my way the second time.I convinced myself that either R3-4/C3 or R3-4/C4 had a total of 11 (a 5-6 pair).I had no clue why I assumed that way :) Call it intuition :-p.....Started with the wrong guess the first attempt and the second time got it right.

I also observed that in my case the 6X6 sudokus had a lot of sting equal to if not more than 9X9 .

To conclude, a test with beautiful and really hard sudokus coming back just on the heels of a difficult Evergreen round but knowing now that the scores are aligned to the best scorer,I must state that it seems perfectly fine to have hard tests like this to learn some new stuff .

Thanks a lot Rohan!A delightful test with some really novel ideas in solving and construction in particular.I had great fun!!
ghirsch
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-14 8:36 AM (#19925 - in reply to #19833) (#19925) Top




Posts: 88
20202020
Location: USA
 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


asudoku
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-14 9:30 AM (#19926 - in reply to #19833) (#19926) Top




Posts: 5

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? Too many hard 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


An LMI player
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-14 1:13 PM (#19927 - in reply to #19833) (#19927) 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 hard puzzles
 What did you think about the puzzle quality of the test? Below Average
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth too much or too little


peluri
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-14 2:45 PM (#19928 - in reply to #19833) (#19928) Top




Posts: 19

Location: Finland
 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


pranavmanu
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-14 4:50 PM (#19929 - in reply to #19833) (#19929) Top




Posts: 35
20
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? Too many hard 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


justinlam3
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-14 8:05 PM (#19930 - in reply to #19833) (#19930) Top




Posts: 8

Location: Hong Kong
 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


rakesh_rai
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-14 8:28 PM (#19931 - in reply to #19833) (#19931) Top



Support Administrator, Casual and Word (PR 19) Author

Posts: 727
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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? 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


Fred76
Subject: RE: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-14 8:48 PM (#19932 - in reply to #19833) (#19932) Top



Diagonal Vision Author

Posts: 335
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Location: Switzerland
Thanks for the nice test !

I really enjoyed !

My mistake was to think it would just be a small tournament with easy/medium sudokus, so I don't have to print the pdf (some cartridges of my printer are empty and I was too lazy to replace them), playing online should be ok. So I started the test while a bit tired and thinking it would just be relaxing time.

I'm not a big fan of sum frame sudoku, as I think it's globally always the same logic, it's impossible to have a real surprise with this variant.

On the contrary, I think group sum sudoku has big potential of being really interesting. I created my first group sum sudoku last year for the WSC swiss qualification and I think it's possible to create very nice group sum. One may think it's just about the same as killer sudoku, but I think some aspects are really different. And I must admit I haven't been disappointed during the test. Both 6*6 and 9*9 group sums were 10-stars sudokus. I think I was very efficient on the 6*6, I was quite fast at noticing the pairs 12 in rows 2 and 3. I had the beginning of the 9*9 quite fast, too. But unfortunately made a mistake, and had to start again. Then I eventually learnt a new trick on this 9*9 group sum sudoku. Very nice, thanks Rohan for this one !

Then came the equal product sudoku, and on the 9*9 I had hard regrets not having printing it. Not being able to write notes outside the grid was fatal for me. I made lot of very stupid mistakes by forgetting some possibilities for products many times while solving (it finally took me more than 30 minutes to solve it, haha !)

The only little critic I could make is that the tournament was perhaps a bit hard for the intended purpose. I was a bit surprised, but it was a very nice surprise for me ;)

Fred
vopani
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-14 9:09 PM (#19933 - in reply to #19924) (#19933) Top


WSPC Organizer

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kishy72 - 2015-11-14 5:12 AM

Thanks a lot Rohan!A delightful test with some really novel ideas in solving and construction in particular.I had great fun!!

Thanks Kishore. I had predicted you would score 85 before the contest began :-)
vopani
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-14 9:13 PM (#19934 - in reply to #19833) (#19934) Top


WSPC Organizer

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Location: India
Thanks Fred. I'm glad you enjoyed.
I agree the test is a little hard, and that was intended.

I really loved the 6x6 Group Sum, it was my personal favourite of the set. The 9x9 Group Sum has a very narrow solving path, but logical.
The Equal Product 9x9 is tricky. I think if you do your homework well, it is a Medium-difficulty sudoku. It uses a lot of deductions from the crosses.
Fred76
Subject: Re: Math Variations - 14th-16th Nov - Sudoku Mahabharat & ISC Qualifier @ 2015-11-14 9:48 PM (#19935 - in reply to #19934) (#19935) Top



Diagonal Vision Author

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Location: Switzerland
Rohan Rao - 2015-11-14 9:13 PM

The Equal Product 9x9 is tricky. I think if you do your homework well, it is a Medium-difficulty sudoku. It uses a lot of deductions from the crosses.


I definitely agree. I solved it like a dilettante and had to face a lot of contradictions while solving because I was too lazy to really take it in a logical way, that's why I wasn't efficient on this one.
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