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Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020
   LMI Tests -> Sudoku Mahabharat62 posts • Page 3 of 3 • 1 2 3
Administrator
Subject: Re: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-13 8:22 AM (#27595 - in reply to #27594) (#27595) Top


200050010010010020202020
Location: India
Congratulations to Jakub Ondrousek, World Sudoku Champion Endo Ken and Seung Jae Kwak for taking the top three places. The first and third place winners are the same as in SM1.

Thanks to the 364 participants from 42 countries. Ziyun Qiu (China) was the first to start the test, just 53 seconds after the test started. Taner Karabulut (Turkey) pipped David Collison (United Kingdom) to become the last person to start the test, about 48 seconds before the end. 21 participants completed the set within the allotted time, and 343 participants (94.23%) scored non-zero points. The median score of the test was 39.

Top 3 for countries with 10+ participants:

India(141): Rohan Rao, Kishore Kumar and Rishi Puri
Japan(27): Endo Ken, Kota Morinishi and Hideaki Jo
USA(24): Jason Zuffranieri, William Blatt and Jenna Rivet
Italy(17): Giulia Cossutti, Gabriele Carelli and Daniele Colnaghi
Poland(16): Tomasz Strozak, Piotr Gdowski, Mateusz Przybyla
Germany(15): Michael Ley, Martin Merker and Robert Vollmert
France(14): Timothy Doyle, Yannick Meyapin and Denis Auroux

Among the variants, Fortress was most solved and Odd Even Count was least solved.

Thanks Pranav Kamesh and Hemant Kumar Malani for the sudokus!

Participants may share feedback on the results page and rate the puzzles on the contest page.
Administrator
Subject: Re: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-13 11:46 AM (#27597 - in reply to #27595) (#27597) Top


200050010010010020202020
Location: India
The Solution Booklet is now available here.
Hemant Kr Malani
Subject: Re: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-14 12:56 AM (#27600 - in reply to #27584) (#27600) Top




Posts: 54
2020
Location: India
Congratulations to Jakub Ondrousek, Endo Ken and Seung Jae Kwak for taking the top three places. Also, congratulations to Rohan, Kishore and Rishi for bagging top 3 positions amongst the Indians.

The overall feedback about the test was that it was a bit on harder side. I would say that we had realised that the difficulty of the set we had prepared was high. So we had reduced the difficulty of a few sudokus. But it still turned out to be difficult for SM. The 9x9 Substitution was one sudoku where many people took a lot of time. But it was given a higher weightage so it was quite justified to have a more difficult sudoku. Probably we could have reduced the length of the words to make it a better solving experience.

One particular feedback I would like to comment about:
tamz29 - 2020-02-11 11:02 AM

I wasn't sure if all circles were given in the Odd Even Count - maybe future IBs should clarify this.



In the IB we had not mentioned that all circles are given. By that we assumed that it would be clear that all circles are not given. Probably from next time onwards we can particulary mention this.

In the round there was a particular sudoku which I liked a lot--6x6 Renban. There was a trick using which it could be solved very quickly. So, I would post a walkthrough of the sudoku.

This was my third time as an author of an SM round and it was a great experience creating sudokus with Pranav. He contributed majorly to the round and also created some really awesome themed sudokus. For example in the 9x9 Fortress he used the concept that the given digits were in respective positions in the boxes. There was an extremely good theme for 9x9 Renban. I leave it up to Pranav to explain that. Kudos to him! Thanks to LMI for giving me this opportunity.

Edited by Hemant Kr Malani 2020-02-14 1:22 AM




Attachments
----------------
Attachments Renban Sudoku Walkthrough.zip (86KB - 13 downloads)
rakesh_rai
Subject: Re: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-14 1:13 AM (#27601 - in reply to #27600) (#27601) Top



Mean Minis (2020) Author

Posts: 752
5001001002020
Location: India
Hemant Kr Malani - 2020-02-14 12:56 AM

In the IB we had not mentioned that all circles are given. By that we assumed that it would be clear that all circles are not given. Probably from next time onwards we can particulary mention this.
The standard practice is that unless a statement like "All possible circles are given" is mentioned, the converse rule does not apply.
pranavmanu
Subject: Re: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-14 2:20 PM (#27603 - in reply to #27536) (#27603) Top




Posts: 50
2020
Location: india
I would like to congratulate Jakub Ondrousek, Endo Ken and Seung jae Kwak for finishing on the podium, as well as Rohan Rao, Kishore Kumar and Rishi Puri for finishing on the Indian Podium.

As Hemant has said above, we did realize our Sudokus were on the tougher side and made some changes to tone down the difficulty but it is apparent that these changes weren't enough.

About the 9*9 Substitution having large words, My intention while creating it was to make it look scary with large words but with the solve being moderately easy and smooth. I don't know if that was the experience felt by most solvers but that was the intention.
Nevertheless, will keep the general feedback in mind for future competitions

The 9*9 Renban was made as a tribute to Kobe Bryant, whose untimely passing was really tragic. It felt apt to honour someone who has affected so many people across the world.

Being a novice, It was a nice experience to create Sudokus along with Hemant, who helped me a lot by helping me whenever I was stuck and ran out of ideas for creation.His renban 6*6 had some good logic behind it, was a cool construction, along with the True or Lie 9*9.Thank you, Hemant!
Thanks to Rakesh for his help as well!

rakesh_rai
Subject: Re: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-14 7:46 PM (#27604 - in reply to #27603) (#27604) Top



Mean Minis (2020) Author

Posts: 752
5001001002020
Location: India
pranavmanu - 2020-02-14 2:20 PM

About the 9*9 Substitution having large words, My intention while creating it was to make it look scary with large words ...

There was some information in the two substitution sudokus though. The first one had a list of SIX SEASONS as per Hindu Calendar (one of the seasons being Hemant, one of the authors in this round) and the second one had NINE PHYLUMS from the Animal kingdom classification in Biology.
dmahesh
Subject: Re: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-17 4:36 PM (#27610 - in reply to #27536) (#27610) Top




Posts: 4

Location: India
Can this tests be submitted through mobile.
I am getting plugin not supported on browsers and on rest nothing is displayed for the flash content.
dmahesh
Subject: Re: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-18 3:57 PM (#27613 - in reply to #27536) (#27613) Top




Posts: 4

Location: India
Hello sir,

I have cross checked all my answers with the solution booklet given in theforum.

And my answers for renban1 and oddeven1 are exactly same as given in your solution booklet.

Also for truelie2, although my answer is not same as the solution given however it is not wrong either because it is fulfilling all the required rules of truelie as well as standard rules.

I want to share my answers here so that those can be reverified.
Please suggest the way to share as I cannot find any option to attach the files in reply.

Appreciate your support, so that I can improve myself.

Regards,
Dmahesh



Hemant Kr Malani
Subject: Re: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-21 11:21 PM (#27620 - in reply to #27613) (#27620) Top




Posts: 54
2020
Location: India
dmahesh - 2020-02-18 3:57 PM

Hello sir,

I have cross checked all my answers with the solution booklet given in theforum.

And my answers for renban1 and oddeven1 are exactly same as given in your solution booklet.

Also for truelie2, although my answer is not same as the solution given however it is not wrong either because it is fulfilling all the required rules of truelie as well as standard rules.

I want to share my answers here so that those can be reverified.
Please suggest the way to share as I cannot find any option to attach the files in reply.

Appreciate your support, so that I can improve myself.

Regards,
Dmahesh






Hi. There is an option to attach a file in the forum. But you can also whatsapp your solution to me on 8584837457
dmahesh
Subject: Re: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-03-01 4:59 AM (#27670 - in reply to #27620) (#27670) Top




Posts: 4

Location: India
Hello sir,

Thank you for responding to my thread.

Yes, I can see the 'file attach' option in forum, however it is not available in 'Private message sending' from this email.Thanks for your guidance.

Attaching my set of solution for True or Lie-2 and Renban-1. These are different from the solutions given however those looks correct to me as per require rules.

Please could you reverify them and give your inputs.

Thanks
dmahesh
Subject: Re: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-03-01 5:14 AM (#27671 - in reply to #27620) (#27671) Top




Posts: 4

Location: India
Hello sir,

Thank you for responding to my thread.

As per the given instructions, file greater than 100KB cannot be uploaded on this forum hence I have sent my set of solution for True or Lie-2 and Renban-1 on logicmasteradmin@gmail.com.

Subject of email is: 7th to 12th Feb - Sudoku Mahabharat - Request for solution reverification

These are different from the solutions given however those looks correct to me as per require rules.

Please could you reverify them and give your inputs.


Thanks
rajeshk
Subject: Re: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-06-11 9:18 AM (#28334 - in reply to #27536) (#28334) Top


WSPC Organizer

Posts: 505
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Location: India
Score of this test is not uploading. @Admin, Can you please check it out

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