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PR 2020 (MII and Regions) Author
Posts: 55
Location: India | solutions appended in puzzle booklet are IB solutions. please do change :) |
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PR 2020 (Shading and Loops) Author
Posts: 668
 
Location: India | ashaash11ash - 2015-10-27 10:05 AM
solutions appended in puzzle booklet are IB solutions. please do change :)
Changed. |
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Diagonal Vision Author
Posts: 337
Location: Switzerland | Thanks for the tournament !
Nice sudokus ! Appropriate level of difficulty for intermediate players I think.
It was nice to restart playing sudoku after WSC with this test.
About the answer keys and the choice of rows/columns: I didn't care that much about codes on this tournament, perhaps because since WSC I'm used to fill all cells in each sudoku I solve.
However I also noticed here and there that the choices of rows/columns for answer keys were not always optimal.
On a few 9*9 sudokus, the 2 rows/columns choosen covered only 3 regions (for example on 9*9 No Even Neighbours). While it can be a good choice for some sudokus, you have to be sure that these 3 regions are really the end of solving path of this sudoku. It's always a risky choice. On the 9*9 No even neighbours I found that it was not optimal. |
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | Fred76 - 2015-10-27 2:46 PM
Thanks for the tournament !
Nice sudokus ! Appropriate level of difficulty for intermediate players I think.
It was nice to restart playing sudoku after WSC with this test.
About the answer keys and the choice of rows/columns: I didn't care that much about codes on this tournament, perhaps because since WSC I'm used to fill all cells in each sudoku I solve.
However I also noticed here and there that the choices of rows/columns for answer keys were not always optimal.
On a few 9*9 sudokus, the 2 rows/columns choosen covered only 3 regions (for example on 9*9 No Even Neighbours). While it can be a good choice for some sudokus, you have to be sure that these 3 regions are really the end of solving path of this sudoku. It's always a risky choice. On the 9*9 No even neighbours I found that it was not optimal.
Thanks Fred for feedback. Will be careful for next test. |
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | Once again congrats to Top 3 Indians as well as Overall. Top 10 list are usual puzzlers with some notable new names of Anil Thakur (2nd) and Shaheer Rahman (10th). Also the performances by shankarsudhir, Mamta and Pranav are worth noting.
Stats:
Total 322 players participated with 299 players having nonzero score.
Standard 6x6 1st was submitted by most people. Top rated puzzles were 1) Odd-Even Count (6x6) - 9.79 2) Quadro (9x9) - 9.48 3) Classic (9x9 - 3rd) - 9.23
In the solution booklet you can find who created which Sudoku.
I would like to thank Deb for giving us opportunity to author this round. I would also like to thank Rishi for testing this round and his feedback. Thanks once again to all participants.
See you soon in upcoming Evergreen round of PR by Amit Sowani and then Math round of SM by Rohan Rao. Good luck for all remaining rounds.
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | kishy72 - 2015-10-26 2:08 PM
Regards share of creation,I can almost say which were created by whom :)
No Even /Odd Even count --Swaroop///
Odd Sum Pair/Quadro --Ashish
Thanks for the test!Good work.
You had 25% accuracy of guessing. ;) |
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SM 2020 (Converse and Odd Even) Author
Posts: 51
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 | |
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Posts: 2
Location: India | Why do I get 'D' in front of my name in the ranklist ? Also my name was removed from the final ranklist. |
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SM 2020 (Math) Author
Posts: 417
Location: India | abth261 - 2015-11-06 7:07 AM
Why do I get 'D' in front of my name in the ranklist ? Also my name was removed from the final ranklist.
D stands for disqualified.It usually happens when the organizer(s)or the administrator is fairly certain that the contestant has used 'unfair' means to reach the score that he/she eventually did. |
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Location: India | abth261 - 2015-11-06 7:07 AM
Why do I get 'D' in front of my name in the ranklist ? Also my name was removed from the final ranklist.
We have automated means to detect suspicious timings, and so we have disqualified you. If you want to pursue this, you may contact us on logicmastersadmin@gmail.com, but remember that you will come under scrutiny at the offline finals to see if you really do possess this level of speed, and if not, we may ban you from competing in future contests.
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Posts: 2
Location: India | you have stated that you have detected suspicious timing . many contestants have finished much before mine was that not suspicious?. also in puzzle ramayan i have not solved all the puzzles. i have solved as much as i could.if at all if any unfair means were to be used. i could have given solutions for all 22 puzzles . i respect your decision. if at all you do not allow me to participate, i do not mind.but reason given to disqualify was not satisfactory. rules should be same to all.only myself was disqualified. that is disappoiniting & discouraging. THANKS |
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SM 2020 (Math) Author
Posts: 417
Location: India | abth261 - 2015-11-07 5:39 PM
you have stated that you have detected suspicious timing . many contestants have finished much before mine was that not suspicious?. also in puzzle ramayan i have not solved all the puzzles. i have solved as much as i could.if at all if any unfair means were to be used. i could have given solutions for all 22 puzzles . i respect your decision. if at all you do not allow me to participate, i do not mind.but reason given to disqualify was not satisfactory. rules should be same to all.only myself was disqualified. that is disappoiniting & discouraging. THANKS
You seem to be more concerned with the reason given for your dis-qualification rather than for the fact that if there were any truth behind it.
Understand that it is never in the interest of the organizers to intentionally disqualify or discourage anyone.The people that you seem to accuse(the ones who have taken lesser time than yours)have all been representing their national teams in World sudoku championships and/or regularly featuring in LMI tests.Their performances both offline and online are consistent (Just click on their names and you can see their Rank score,Prorated score etc., over a period of time).Also remember that if someone solves unfairly and reaches the top 50,not only does it not seem right but it also robs a spot for a person who has been solving fairly and deserves a place in the finals.
Despite all this,if you still think that there has been a 'grave error' committed when it came to judging you ,you are free to take up the issue at the email-id provided.But also keep in mind the caveat that has been given.
Administrator - 2015-11-06 6:37 PM
remember that you will come under scrutiny at the offline finals to see if you really do possess this level of speed, and if not, we may ban you from competing in future contests.
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Location: India | Anil - Since you asked for more details, a mail has been sent to you explaining our reasoning. If you want to reach a satisfying resolution, please check and reply to it. Please note that the reasoning for disqualification is not just getting a good score. |
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Odd Even - 24th-26th Oct - Sudoku Mahabharat & ISC Qualifier
