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Logic Masters India announces December Sudoku Test

Author : TTLC Team

Date : 25^th and 26^th December

Length : 100 minutes

IB and Submission Link : http://logicmastersindia.com/lmitests?test=M201012S

Short name of the author.

Sudoku types - There are 12 classic Sudokus in a relay.
To solve the n^th Sudoku, one has to transfer 6 digits from the n-1^th Sudoku.
These 6 digits are "Relay Cells".

In the actual Sudokus, the Relay Cells seem like lamp on the x-mas tree, and the goal is to light up them!

Rohan Rao - 2010-12-20 9:23 PM

TTLC?

TT - TTHsieh (who has written multiple tests for LMI, See the authors page)
LC - Lin Minfang aka Leaf Card (who has again written multiple tests for LMI, including several mock tests as well)

Their classics are always highly appreciated. The last one they wrote for LMI (Qixi festival) had lot of nice Sudokus.

wat is "IB and Submission Link"

Sudoku types - There are 12 classic Sudokus in a relay.
To solve the nth Sudoku, one has to transfer 6 digits from the n-1th Sudoku.
These 6 digits are "Relay Cells".

In the actual Sudokus, the Relay Cells seem like lamp on the x-mas tree, and the goal is to light up them!

where to find an example of such sudokus?could u give an example?

avermaful - 2010-12-21 11:40 AM

where to find an example of such sudokus?could u give an example?

You can download the QIXI festival puzzle booklet .... Here

Rishi

avermaful - 2010-12-21 11:38 AM

wat is "IB and Submission Link"

IB is Information Booklet which gives you examples of the sudokus types that will be there in the actual test.... Submission link is the webpage you will access to submit your answers...

Rishi

have a question. in the example there are two sudokus given . the numbers in the circle of the first sudoku has to be put in the second sudoku. again , from the second sudoku are the same numbers to be put in the 3rd sudoku or we will get another set of circles from where the numbers will have to be marked to the 3rd sudoku?

akash.doulani - 2010-12-21 12:07 PM

have a question. in the example there are two sudokus given . the numbers in the circle of the first sudoku has to be put in the second sudoku. again , from the second sudoku are the same numbers to be put in the 3rd sudoku or we will get another set of circles from where the numbers will have to be marked to the 3rd sudoku?

Puzzle 2 will have a different set of circled numbers that need to be carried to puzzle 3... otherwise it wont be a relay...since you will simply use circled numbers from puzzle 1 into all subsequent puzzles...

Rishi

in puzzle #2 have six other circle cells relay to puzzle #3.
all relay cells for next puzzle will marked circle, and from previous puzzle will marked dotted circle.

another query....
Will the six digits be all different or can they be repeated.......................
like
123369

by solving the previous puzzle, you will find if they were repeated. it's not a part of the rule.

Password protected Sudoku booklet uploaded

finished.....was an excellent set of puzzles....thanx a lot

great set of puzzles. i m fully drained out mentally

Administrator - 2010-12-25 6:04 AM

Test has started

Beautiful puzzles.... The relay clues were crafted very nicely. The last 2 puzzles were nice and as Akash mentioned... mentally drained... Im still seeing numbers before my eyes ... lol

Thanks a lot TTLC

Rishi

Hi,
As soon as I start the test can I solve on screen or is it required to take print out of the puzzles?.
Thanks in advance.

I am not sure about the rules - once I find out the 6 circles from sudoku 1,
do I know what circles I should put them into in sudoku 2? Or it can be in any order - I should work this out?

Thanks for your help,
Ronald

ronald - 2010-12-26 12:40 AM

I am not sure about the rules - once I find out the 6 circles from sudoku 1,
do I know what circles I should put them into in sudoku 2? Or it can be in any order - I should work this out?

Thanks for your help,
Ronald

U have to suitably place all the six numbers in the next grid based on sudoku rules.........
It can be in any order.......

macherlakumar - 2010-12-26 12:03 AM

Hi,
As soon as I start the test can I solve on screen or is it required to take print out of the puzzles?.
Thanks in advance.

It is as per your convenience........ It is always better (easy) to solve on paper.....
But you are welcome to solve it on the screen

Nice set of grids. Inspite of reading the rules, I spent quite some time trying to fit the six numbers from grid 1 into the solid circles of grid 2...before finally realizing that I should be putting them into the dotted ones.

Ugh, I Just finished and realized that I forgot to actually hit 'submit' on any of the puzzles I did!! Gonna really hurt my rating I guess... *sad face* oh well, Thanks for the test!

good set of spuzzles... njoyed every bit of it...

bothrasumit - 2010-12-26 11:13 PM

good set of spuzzles... njoyed every bit of it...

Wow.... Sumit is Back!!!!!!!!!!!!!!

Rishi

thnx Rishi Bhai for the welcome.. but has become a lot rusty.... will have to work harder...

when does the results come out???

bothrasumit - 2010-12-27 12:00 AM

thnx Rishi Bhai for the welcome.. but has become a lot rusty.... will have to work harder...

Good to have you back bro...

Lovely set - much appreciated even playing through the tiredness in the early hours of the morning. Although I do regret not having my wits about me to get through to the very end as I'm sure this was very finishable. I managed to not submit puzzle 4 - but I was wondering about a competition of this type...isn't it almost guaranteed that if a correct solution is posted to a later puzzle (say #10 for example) that correct solutions must have been posted to puzzles #1-9?

detuned - 2010-12-27 12:36 AM

Lovely set - much appreciated even playing through the tiredness in the early hours of the morning. Although I do regret not having my wits about me to get through to the very end as I'm sure this was very finishable. I managed to not submit puzzle 4 - but I was wondering about a competition of this type...isn't it almost guaranteed that if a correct solution is posted to a later puzzle (say #10 for example) that correct solutions must have been posted to puzzles #1-9?

Not necessarily Tom.... I mean, the answer key for a puzzle is not the same as the relay numbers being carried forward... I can get all 6 relay cells correct but say if I type in 1( or any other number ) twice in the answer key then the solution for that puzzle gets wrong but my relay carry forward is correct so I can get the next puzzle correct :)

Rishi

Ah my point was the puzzles were wonderfully well designed - you had no chance of getting anywhere near the carried forward digits unless you had pretty much finished the puzzle - they really were as good as answer keys in my opinion.

Of course, bear in mind I was very tired whilst taking the test :)

I just tried the test but was disturbed while solving #9 and had to stop. I could submit my answers before the end but of course, having lost some dozens of minutes, the final score is far under my goal. Just a little bit of anger, as I felt in good shape.

Disturbance gone and answers submitted, I had just enough time to finish the 9th puzzle... but did a very stupid mistake which I couldn't fix. I will explain why tomorrow (well, today, for indian readers), when the test is over.

As expected, these were wonderful puzzles. It has been several weeks since I solved a classic sudoku as I'm really bored with computer-generated puzzles, but TTShieh and Leaf Card ones are always a great pleasure.

detuned - 2010-12-27 12:46 AM

Ah my point was the puzzles were wonderfully well designed - you had no chance of getting anywhere near the carried forward digits unless you had pretty much finished the puzzle - they really were as good as answer keys in my opinion.

Of course, bear in mind I was very tired whilst taking the test :)

Yes, Minfang Lin mentioned that in most puzzles the carry-forward digits are determined at the end. But not in all cases.
As much as we want to be lenient, and mark P04 as correct for you, but I think it will be unfair to several who have some initial puzzles submitted wrongly. Once the detailed results are up (in 5 minutes), check Semax, don3232, sinchai4547.

It has been long pending thing, but I think the best solution is to add "Auto-Submit" for Sudoku tests. Unlike puzzles tests, each Sudoku has its own Submit button. And it is easy to forget to click on "Submit" in the heat of time. We see that after every test some players forget to submit some sudokus.

Once all required cells are filled, the sudoku should be auto submitted

Congratulations to Jun Yan, Ce Jin, Jakub Ondrousek for topping in X-mas Special Sudoku Test.
146 ( of 166 ) players got non-zero scores.

Thanks to everyone for taking time out during Christmas to participate in the test.

Thanks to team TTLC for the wonderful set of Classic Sudokus. It was only fitting that there were many players from China (some playing from sudokufans.org) and 2 players from China occupied the top spots.

Indian Results - Rishi continued his brilliant performance over last few months, and finished all sudokus just in time.
Sumit and Gaurav, both after a long hibernation, finished 9 puzzles each, but still ahead of others.

Nice to have you back guys! Hope you guys participate more.

LMI Mumbai meet -
We had 7 players at LMI Mumbai meet, who participated in X-mas special sudoku test.
utkaarsh, Mahesh Iyer, Hiral Parikh, Ishita Meshram, prasanna16391, amitsowani and gauravkorde

Details about the meet will be updated in the other thread.

one suggestion regarding the submit button. why not have only one button "submit all" at the bottom instead of having individual buttons for each puzzles.

if someone wants to try the original puzzles download this file
http://logicmastersindia.com/lmitests/dl.asp?attachmentid=97&view=1
ps: the first 8 puzzles can be solved by single.

akash.doulani - 2010-12-27 12:34 PM

one suggestion regarding the submit button. why not have only one button "submit all" at the bottom instead of having individual buttons for each puzzles.

Thanks for the suggestion. We'll do either this OR auto-submit for the next Sudoku test.

Ours brun - 2010-12-26 10:02 PM

Disturbance gone and answers submitted, I had just enough time to finish the 9th puzzle... but did a very stupid mistake which I couldn't fix. I will explain why tomorrow (well, today, for indian readers), when the test is over.

So, my mistake was that I wrongly copied out a digit from puzzle 8 to puzzle 9, making it really difficult to solve. So difficult that I had to guess - but solved it anyway (in fact, with this wrong digit, it had several solutions). Checked the solution (obviously my guess had encountered no contradiction), then transfered digits into puzzle 10... and only there I realized something was wrong, as I couldn't transfer them properly.

Never mind !

Ours brun - 2010-12-28 8:15 PM

So, my mistake was that I wrongly copied out a digit from puzzle 8 to puzzle 9, making it really difficult to solve. So difficult that I had to guess - but solved it anyway (in fact, with this wrong digit, it had several solutions). Checked the solution (obviously my guess had encountered no contradiction), then transfered digits into puzzle 10... and only there I realized something was wrong, as I couldn't transfer them properly.

That is one of the dangerous problems with relays. You make one mistake, but you might realize it only much later.