Login Register LMI Home •Monthly Tests & RatingsSearch RecentLMI Book - Sudoku Mix Vol #1WSPC 2017
Puzzle Zodiac (09th - 15th Oct) Score Discuss

Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020
   LMI Tests -> Monthly Sudoku and Puzzle Tests25 posts • Page 1 of 1 • 1
tamz29
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-07-29 12:00 AM (#28430 - in reply to #28429) (#28430) Top




Posts: 187
10020202020
Location: Thailand
How long is the test?
auroux
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-07-29 12:50 AM (#28431 - in reply to #28428) (#28431) Top


Hex Slitherlink Author

Posts: 105
100
Location: France
Magic square: usually a 3x3 magic square contains the numbers 1-9 each once. The example conforms to this additional rule. However the instructions do not seem to require it.
So: are the magic squares supposed to also be regions in which 1-9 each appear once, or can numbers repeat in the magic square as long as the sums along rows, columns and diagonals are equal ?
aashay
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-07-29 10:25 PM (#28432 - in reply to #28428) (#28432) Top




Posts: 39
20
Location: India
In Unique Sums, can the digits repeat in a cage?
Administrator
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-07-29 10:51 PM (#28433 - in reply to #28430) (#28433) Top


20005001001001001002020
Location: India
tamz29 - 2020-07-29 12:00 AM

How long is the test?

90 minutes - It is mentioned on the contest page.
Administrator
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-07-29 10:52 PM (#28434 - in reply to #28432) (#28434) Top


20005001001001001002020
Location: India
aashay - 2020-07-29 10:25 PM

In Unique Sums, can the digits repeat in a cage?

No
Administrator
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-07-29 11:08 PM (#28435 - in reply to #28434) (#28435) Top


20005001001001001002020
Location: India

(Updated) Instruction Booklet


An updated version of the IB was uploaded at 11:07 PM (29 July) at the contest page: http://logicmastersindia.com/2020/07S/

Changes:
1) Killer Pair example fixed.

randomperson1729
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-07-29 11:10 PM (#28436 - in reply to #28428) (#28436) Top




Posts: 10

Location: USA
The answer key for the Killer Pair example sudoku does not follow the rules of the puzzle (R8C6 and R8C7 add up to 10 instead of 11, and R8C7 and R8C8 add up to 11 instead of 6), and the puzzle itself seems to be broken: there is no way to place a 4 in column 6 without breaking the entire puzzle. The puzzle was fixed right as I posted this, funnily enough.

Also, for Diagonal Skyscrapers, how will two of the same number be handled if they are next to each other in the diagonal line? Will the further building be considered as hidden behind the closer building, or will both numbers count towards the total?

Edited by randomperson1729 2020-07-29 11:15 PM
akash.doulani
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-07-29 11:14 PM (#28437 - in reply to #28431) (#28437) Top


SM 2020 (Math) Author

Posts: 151
1002020
Location: India
auroux - 2020-07-29 12:50 AM

Magic square: usually a 3x3 magic square contains the numbers 1-9 each once. The example conforms to this additional rule. However the instructions do not seem to require it.
So: are the magic squares supposed to also be regions in which 1-9 each appear once, or can numbers repeat in the magic square as long as the sums along rows, columns and diagonals are equal ?

Numbers cannot repeat in a magic square.
akash.doulani
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-07-29 11:17 PM (#28438 - in reply to #28436) (#28438) Top


SM 2020 (Math) Author

Posts: 151
1002020
Location: India
randomperson1729 - 2020-07-29 11:10 PM

The answer key for the Killer Pair example sudoku does not follow the rules of the puzzle (R8C6 and R8C7 add up to 10 instead of 11, and R8C7 and R8C8 add up to 11 instead of 6), and the puzzle itself seems to be broken: there is no way to place a 4 in column 6 without breaking the entire puzzle. The puzzle was fixed right as I posted this, funnily enough.

Also, for Diagonal Skyscrapers, how will two of the same number be handled if they are next to each other in the diagonal line? Will the further building be considered as hidden behind the closer building, or will both numbers count towards the total?

Two or more buildings of same height diagonally will be treated as one building.
Administrator
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-07-31 12:48 PM (#28440 - in reply to #28428) (#28440) Top


20005001001001001002020
Location: India

(Updated) Instruction Booklet


An updated version of the IB was uploaded at 12:40 PM (31 July) at the contest page: http://logicmastersindia.com/2020/07S/

Changes:
1) Duration of the contest added in Page 2 (About the test)
2) Magic square rules: This line is added - Numbers cannot repeat in a magic square.
3) Diagonal skyscraper rules modified: A higher building will hide any lower height (or same height) buildings behind it.
4) Unique Sums rules: This line is added - Digits cannot repeat in a cage.

Administrator
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-07-31 6:05 PM (#28441 - in reply to #28428) (#28441) Top


20005001001001001002020
Location: India

Sudoku Booklet


The password protected Puzzle Booklet is now available at http://logicmastersindia.com/2020/07S/

Feedback should be entered directly in this thread. There shall be no separate Feedback page.

Administrator
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-07-31 7:41 PM (#28442 - in reply to #28428) (#28442) Top


20005001001001001002020
Location: India

Online Solving


Online solving is available for this test.


bob
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-08-01 8:54 PM (#28444 - in reply to #28428) (#28444) Top




Posts: 59
2020
Location: USA
As usual too many hard puzzles (for a timed test) for me but I guess speed-solving is just not my specialty and never, never ever will be. I was having fun, going in order until the Liar Sudoku. I spent almost an hour on this (until time was gone) and still couldn't solve it and just got frustrated.
bob
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-08-01 9:32 PM (#28445 - in reply to #28428) (#28445) Top




Posts: 59
2020
Location: USA
Sorry for the negative tone of the previous comment--I was quite flustered...I tried to add the following as an edit but was too late: The puzzles seemed to be VERY high quality with logical paths...I can finish them up today, on my own time. Thanks to the authors and LMI for continuing to offer such interesting puzzle sets. It is why I keep coming back despite getting frustrated.
aashay
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-08-02 2:30 PM (#28446 - in reply to #28428) (#28446) Top




Posts: 39
20
Location: India
Thanks Akash for an interesting and high-quality Sudoku set. I struggle in tests that involve too many puzzles to be solved in less time, and this was no different. I had it in my mind that I have 6 minutes for each Sudoku and as soon as the clock went past 6 minutes for each Sudoku, I panicked, and thus, made silly mistakes in Missing Arrow, Kropki, Liar and Unique Sums. This ruined my test. This test would be much more enjoyable without time restrictions.
kishy72
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-08-02 6:21 PM (#28447 - in reply to #28446) (#28447) Top


SM 2020 (Math) Author

Posts: 387
10010010020202020
Location: india
Thanks a lot Akash for a tremendous set of sudokus.The solve paths were super fun and highly challenging. I am totally disappointed with my own performance though. After getting the higher pointers in a fairly decent time, the test got ruined more or less becuase of a single sudoku (Diagonal Skyscrapers). I totally missed the intended solve path and messed it up completely. Lost about 20 minutes in the process without finishing it and to add to that frustration, the timer ran out when I was entering the answer key of Killer Pair. So what could have been an 800+ score turned sub-par.

Also, I felt that 90 minutes was of a lesser duration for getting through so many hard sudokus.Nevertheless, I relished the contest and hope to find the logic in the ones that I guessed.
fabich
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-08-03 2:06 PM (#28448 - in reply to #28428) (#28448) Top




Posts: 1

Location: FRANCE
sorry, I can't find password and submission page..
Where can I find this link ?

thank you !
Administrator
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-08-03 8:54 PM (#28449 - in reply to #28428) (#28449) Top


20005001001001001002020
Location: India
See the top right of the page, where it says Quinze 2 has started. Click on "Quinze 2".
tamz29
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-08-04 10:06 PM (#28450 - in reply to #28428) (#28450) Top




Posts: 187
10020202020
Location: Thailand
Coming off from the SM's I totally under estimated this test and decided to work from the back.
Boy was I hustling in the last 30 minutes. A very nice change from the mellow SM's.
Special kudos to the Liar Sudoku - a beautiful grid indeed. Thermo felt a bit bashy for me - don't know what I missed.

Thanks Akash for the nice puzzles.
Also, when can we expect some ratings update? It's been a year or so now.
mstang
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-08-05 5:28 AM (#28451 - in reply to #28428) (#28451) Top





Posts: 65
202020
Location: USA
Those sudoku were very hard, in my opinion; I would have appreciated an extra 30 minutes to work on them -- as it was I only got through about half the test. However, they were all enjoyable and well-made! Thanks, Akash!
rajeshk
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-08-06 10:08 AM (#28452 - in reply to #28428) (#28452) Top


WSPC Organizer

Posts: 507
500
Location: India
Thanks, Akash for this brilliant set of Sudoku puzzles. Every puzzle has a very good logical path. Enjoyed every puzzle while solving it offline or during the test.
Once again thanks for this Sudoku test.
I agree with the earlier feedback that ratings can be updated now. It has been more than a year now when the LMI rating was last updated.
ashaash11ash
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-08-09 7:15 PM (#28453 - in reply to #28428) (#28453) Top


PR 2020 (MII and Regions) Author

Posts: 45
2020
Location: india
https://youtu.be/KwvIYLh53nI

Unique Sums Sudoku by Akash Doulani. This Sudoku Featured in this contest. Do check this very difficult sudoku.
ashaash11ash
Subject: Re: Quinze 2 - LMI July Monthly Sudoku Test - 31st July to 5th August 2020 @ 2020-08-09 7:15 PM (#28454 - in reply to #28428) (#28454) Top


PR 2020 (MII and Regions) Author

Posts: 45
2020
Location: india
https://youtu.be/19goWKskGKM

A second video on this Channel of Sudoku from this contest. The logic involved in this Sudoku is really good. Do check out the video.
25 posts • Page 1 of 1 • 1
Jump to forum :
Search this forum
Printer friendly version

Best blackjack strategies https://onlineblackjack.money/strategies/.

Online casino roulette for Australian players https://aucasinosonline.com/roulette/