Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020
Administrator
Subject: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-02 8:35 PM (#27536) (#27536) Top


2000500100100100
Location: India




Link for rules and other details about Sudoku Mahabharat : http://logicmastersindia.com/SM/2020sm.asp
Instructions for Substitution and Neighbours - http://logicmastersindia.com/SM/202002/

Administrator
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-02 9:00 PM (#27537 - in reply to #27536) (#27537) Top


2000500100100100
Location: India

Instruction Booklet


Instruction Booklet is now available here: http://logicmastersindia.com/SM/202002/

Points Table shall be updated before contest starts.

bariscakmak
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-03 2:47 AM (#27538 - in reply to #27536) (#27538) Top




Posts: 1

Location: Turkiye
renban-1 ???
Hemant Kr Malani
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-03 7:36 AM (#27539 - in reply to #27538) (#27539) Top




Posts: 53
2020
Location: India
bariscakmak - 2020-02-03 2:47 AM

renban-1 ???


Hi. Can you please elaborate?
Timjamiller
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-03 9:03 AM (#27540 - in reply to #27536) (#27540) Top




Posts: 8

Location: USA
Renban 1 does not have a valid solution in the instruction booklet--both the upper right 3x2 box and the lower central 3x2 box are missing a 1 in the displayed solution. (And a 1 is impossible to place in at least the upper right.) Perhaps it should have been 2x3 boxes instead of 3x2s?

Edited by Timjamiller 2020-02-03 9:05 AM
Administrator
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-03 10:16 AM (#27541 - in reply to #27540) (#27541) Top


2000500100100100
Location: India
Timjamiller - 2020-02-03 9:03 AM

Renban 1 does not have a valid solution in the instruction booklet--both the upper right 3x2 box and the lower central 3x2 box are missing a 1 in the displayed solution. (And a 1 is impossible to place in at least the upper right.) Perhaps it should have been 2x3 boxes instead of 3x2s?

You are right. It should be 2x3 boxes.
Administrator
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-03 10:17 AM (#27542 - in reply to #27536) (#27542) Top


2000500100100100
Location: India

Instruction Booklet (updated)


The Renban-1 example has been corrected in an updated version of the Instruction Booklet.

BogdanG
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-03 1:22 PM (#27544 - in reply to #27536) (#27544) Top




Posts: 3

Location: Romania
Hello, I have one question: if I am solving online in flash when I am sending the answer is enough to be the key lines completed or all the sudoku cells suppose to be completed?
mstang
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-04 9:44 AM (#27547 - in reply to #27536) (#27547) Top





Posts: 56
2020
Location: USA
It is enough for the rows/columns with arrows to be filled in.
Pjhawar
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-06 4:28 PM (#27549 - in reply to #27536) (#27549) Top




Posts: 4

Location: India
How to submit the answers if solving on paper.l am a new user please share some link with example explained for it
Hemant Kr Malani
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-06 8:19 PM (#27550 - in reply to #27549) (#27550) Top




Posts: 53
2020
Location: India
Pjhawar - 2020-02-06 4:28 PM

How to submit the answers if solving on paper.l am a new user please share some link with example explained for it


Hi. You can check this page http://logicmastersindia.com/forum/forums/thread-view.asp?tid=381&s...

Pjhawar
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-06 9:56 PM (#27551 - in reply to #27550) (#27551) Top




Posts: 4

Location: India
Thank you sir for reply. It mentions about filling the digits only in 2 the marked rows/columns. Will it be sufficient , does all the digits of the grid need not to be filled
Hemant Kr Malani
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-06 10:30 PM (#27552 - in reply to #27551) (#27552) Top




Posts: 53
2020
Location: India
Pjhawar - 2020-02-06 9:56 PM

Thank you sir for reply. It mentions about filling the digits only in 2 the marked rows/columns. Will it be sufficient , does all the digits of the grid need not to be filled


Yes, it will be sufficient to fill only the two marked rows/columns.
Pjhawar
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-07 2:57 AM (#27553 - in reply to #27552) (#27553) Top




Posts: 4

Location: India
Thank you for guidance. It's helpful
Administrator
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-07 9:28 AM (#27554 - in reply to #27536) (#27554) Top


2000500100100100
Location: India

Instruction Booklet (updated)


Instruction Booklet is updated with points now, and can be accessed at the contest page: http://logicmastersindia.com/SM/202002/

Points shall be as below:

Mini Classic: 1 + 1 + 1 + 1
Classic: 5 + 5 + 5 + 5
True or Lie: 3 + 9
Substitution: 5 + 12
Fortress: 3 + 8
Renban: 5 + 14
Odd Even Count: 4 + 13

Administrator
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-07 11:55 AM (#27555 - in reply to #27554) (#27555) Top


2000500100100100
Location: India

Sudoku Booklet


The encrypted Sudoku Booklet is available for download now: http://logicmastersindia.com/SM/202002/

vopani
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-07 3:07 PM (#27556 - in reply to #27536) (#27556) Top


WSPC Organizer

Posts: 709
500100100
Location: India
 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
 Which set of puzzles did you like the most? True or Lie Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


Too hard for SM. I found the Classics particularly hard.

Very nice quality of sudokus.

Favourites: 9x9 True Or Lie, 6x6 Fortress, 9x9 Renban

Thanks Hemant and Pranav!
Kirti7689@gmail.com
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-07 3:40 PM (#27557 - in reply to #27537) (#27557) Top




Posts: 1

What is the password for the booklet?
peluri
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-07 4:40 PM (#27558 - in reply to #27536) (#27558) Top




Posts: 24
20
Location: Finland
 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
 Which set of puzzles did you like the most? Substitution Sudoku
 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: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-07 4:56 PM (#27559 - in reply to #27536) (#27559) Top


 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
 Which set of puzzles did you like the most? Substitution Sudoku
 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: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-07 5:25 PM (#27560 - in reply to #27536) (#27560) Top


 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? Fairly Nice
 Which set of puzzles did you like the most? Odd Even Count Sudoku
 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: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-07 6:02 PM (#27561 - in reply to #27557) (#27561) Top


2000500100100100
Location: India
Kirti7689@gmail.com - 2020-02-07 3:40 PM

What is the password for the booklet?

Password shall be displayed to you once you click on "Start Substitution and Neighbours" button.

More details here: http://logicmastersindia.com/forum/forums/thread-view.asp?start=1&t...

- You need to go to the contest page http://logicmastersindia.com/SM/202002/
- Download the Instructions Booklet and Sudoku Booklet.
- Go through the Instructions Booklet and get familiar with sudoku types.
- Once you are ready, click on "Start Substitution and Neighbours" button on the test page.
- You will get the password displayed on the screen.
- Copy the password and use it to open the Sudoku booklet pdf.
- Print the booklet, solve and enter the answer key(s).
- Solve and submit as many as possible till the timer on the screen is running (It will run for 90 minutes).
- Check the score on the Results link.
- You can also solve online (There is a link on the top of the contest page).
MrLiang
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-08 12:42 AM (#27562 - in reply to #27536) (#27562) Top





Posts: 42
2020
Location: Thailand
 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? Fairly Nice
 Which set of puzzles did you like the most? True or Lie Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


Timjamiller
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-08 1:33 AM (#27563 - in reply to #27536) (#27563) Top




Posts: 8

Location: USA
Clarification request: For True or Lie Sudoku, the "clues" only refer to the small digits that are given in the grid, and not the large ones, correct? In other words, any given large numbers will be in that location in the solution?
Hemant Kr Malani
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-08 8:11 AM (#27564 - in reply to #27563) (#27564) Top




Posts: 53
2020
Location: India
Timjamiller - 2020-02-08 1:33 AM

Clarification request: For True or Lie Sudoku, the "clues" only refer to the small digits that are given in the grid, and not the large ones, correct? In other words, any given large numbers will be in that location in the solution?


Yes, any given large number will be in that location.
gn.raviprakash
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-08 8:50 AM (#27565 - in reply to #27536) (#27565) Top




Posts: 1

Location: India
 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
 Which set of puzzles did you like the most? True or Lie Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


harmeet
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-08 12:40 PM (#27566 - in reply to #27536) (#27566) Top


Converse and Twisted Classics Variations (SM 19) Author

Posts: 63
202020
Location: India
 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
 Which set of puzzles did you like the most? True or Lie Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


TiiT
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-08 3:27 PM (#27567 - in reply to #27536) (#27567) Top




Posts: 115
100
Location: Estonia
 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? Average
 Which set of puzzles did you like the most? Fortress Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Many puzzles were worth too much or too little


Honestly... I spent half of my time decrypting those letters.
Gotroch
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-08 4:18 PM (#27568 - in reply to #27536) (#27568) Top




Posts: 79
202020
Location: Czech Republic
 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
 Which set of puzzles did you like the most? Odd Even Count Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


I took the test online and it was nightmare to solve True or Lie and Substitution puzzles, because when I enter pencilmarks into cells, number 1 was covered by given little digits (letters) so it was very easy to overlook that pencilmark.
An LMI player
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-08 6:40 PM (#27569 - in reply to #27536) (#27569) Top


 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
 Which set of puzzles did you like the most? Classic Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Many puzzles were worth too much or too little


udoroh
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-09 3:14 AM (#27570 - in reply to #27536) (#27570) Top




Posts: 13

Location: Poland
 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
 Which set of puzzles did you like the most? Classic Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


Feadoor
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-09 3:47 AM (#27571 - in reply to #27536) (#27571) Top




Posts: 10

Location: UK
 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
 Which set of puzzles did you like the most? Substitution Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


WA1729
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-09 6:34 AM (#27572 - in reply to #27536) (#27572) Top


Shading and Loops (PR 2016/17) Author

Posts: 40
2020
Location: USA
 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
 Which set of puzzles did you like the most? True or Lie Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


Very nice - thanks!

Favorites:

True or Lie 1
True or Lie 2
Renban 2
akash.doulani
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-09 2:10 PM (#27573 - in reply to #27536) (#27573) Top


Converse & Twisted Classics (SM 18) Author

Posts: 147
1002020
Location: India
 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
 Which set of puzzles did you like the most? Classic Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


akash.doulani
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-09 2:13 PM (#27574 - in reply to #27536) (#27574) Top


Converse & Twisted Classics (SM 18) Author

Posts: 147
1002020
Location: India
A very difficult test. It didnt helpthat i broke fortress 9x9 and true lie 9x9 . Also , i was stuck in odd even count for a long time. Could have done better had i not broken the two sudokus. My favourite were Classics , True lie and substitution .
An LMI player
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-09 5:28 PM (#27575 - in reply to #27536) (#27575) Top


 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
 Which set of puzzles did you like the most? True or Lie Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


Substitution 9x9 looked difficult because of the words but the solve was fairly easier. Not much time was needed for deciphering. Renban 9x9 needed some tough break-ins. Renban 6x6 had some interesting logic behind it. Odd Even Count 9x9 needed some counting in some of the circles. Fortress and True or Lie 9x9 were fairly smooth solves. Most 6x6s were of medium difficulty but the points reflected it.
An LMI player
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-09 9:32 PM (#27576 - in reply to #27536) (#27576) Top


 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
 Which set of puzzles did you like the most? Classic Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


kishy72
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-10 11:22 AM (#27577 - in reply to #27536) (#27577) Top




Posts: 375
100100100202020
Location: india
 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


A Very challenging test with tough sudokus.Getting stuck or breaking a sudoku can easily cascade one's troubles and lead to well short of finishing a contest.

Thankfully, I had a smooth run and didn't break any sudoku.

My favorites of the set are Odd even count (13), True or Lie (9) and Fortress (8).

Thanks Hemant and Pranav for a tough, engrossing and enjoyable set !!
mstang
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-10 12:00 PM (#27578 - in reply to #27536) (#27578) Top





Posts: 56
2020
Location: USA
 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
 Which set of puzzles did you like the most? Odd Even Count Sudoku
 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: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-10 12:34 PM (#27579 - in reply to #27536) (#27579) Top


 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
 Which set of puzzles did you like the most? Fortress Sudoku
 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: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-10 7:55 PM (#27580 - in reply to #27536) (#27580) Top


 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
 Which set of puzzles did you like the most? Fortress Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Many puzzles were worth too much or too little


avinash175
Subject: Re: Substitution and Neighbours - 7th to 11th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-11 10:25 AM (#27583 - in reply to #27536) (#27583) Top




Posts: 6

Location: India
 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
 Which set of puzzles did you like the most? Odd Even Count Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


tamz29
Subject: Re: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-11 11:02 AM (#27584 - in reply to #27536) (#27584) Top




Posts: 177
100202020
Location: Thailand
Coming off the Sudoku GP with hard classics - I thought some of these 5-points classics were also quite hard for the usual SM rounds.
I can imagine a lot of people struggling with the Substitution Sudoku - but I kinda like it.
I wasn't sure if all circles were given in the Odd Even Count - maybe future IBs should clarify this.
Not a fan of hard 6x6 variants because it encourages guessing over logically solving it, there's probably a neat path somewhere.

Nice test nonetheless.
Thanks!
Administrator
Subject: Re: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-11 6:34 PM (#27586 - in reply to #27536) (#27586) Top


2000500100100100
Location: India

24 hours extension


Based on some requests, the test is extended by 24 hours and will now be open till 23:59 on 12th February.

anithra
Subject: Re: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-11 9:32 PM (#27587 - in reply to #27536) (#27587) Top




Posts: 5

Location: india
 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


fal_94
Subject: Re: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-11 11:57 PM (#27588 - in reply to #27536) (#27588) Top




Posts: 4

Location: India
 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
 Which set of puzzles did you like the most? Substitution Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Many puzzles were worth too much or too little


purifire
Subject: Re: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-12 12:40 PM (#27589 - in reply to #27536) (#27589) Top



Odd Even & Twisted Classics (SM 16/17) Author

Posts: 458
1001001001002020
Location: India
 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
 Which set of puzzles did you like the most? True or Lie Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


Too hard a set for SM. :) Had to resort to guesswork in a lot of them to finish in time. Puzzle quality was great. :)
An LMI player
Subject: Re: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-12 11:34 PM (#27592 - in reply to #27536) (#27592) Top


 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
 Which set of puzzles did you like the most? Renban Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


utkaarsh
Subject: Re: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-13 1:28 AM (#27593 - in reply to #27536) (#27593) Top




Posts: 88
20202020
Location: india
 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
 Which set of puzzles did you like the most? True or Lie Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


TS279
Subject: Re: Substitution and Neighbours - 7th to 12th Feb - Sudoku Mahabharat & ISC Qualifier 2020 @ 2020-02-13 3:08 AM (#27594 - in reply to #27536) (#27594) Top




Posts: 6

Location: Poland
 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? Fairly Nice
 Which set of puzzles did you like the most? Odd Even Count Sudoku
 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: 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


2000500100100100
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


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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: 53
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



Support Administrator, Casual and Word (PR 19) Author

Posts: 738
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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: 41
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



Support Administrator, Casual and Word (PR 19) Author

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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: 53
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