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Pathway Sudoku - LMI Fun Contest - 22nd to 27th June25 posts • Page 1 of 1 • 1
@ 2018-06-15 12:35 AM (#25061) (#25061) Top

Administrator



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Country : India

Administrator posted @ 2018-06-15 12:35 AM

Pathway Sudoku - LMI Fun Contest

Dates : 22nd - 26th June

Instruction Booklet & Submission : http://logicmastersindia.com/2018/06F/

Author : Rajesh Kumar

@ 2018-06-21 2:56 PM (#25090 - in reply to #25061) (#25090) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2018-06-21 2:56 PM

Instruction Booklet


The IB is available now: http://logicmastersindia.com/2018/06F/

@ 2018-06-21 5:36 PM (#25092 - in reply to #25061) (#25092) Top

mikeylyk



Posts: 16

Country : United States

mikeylyk posted @ 2018-06-21 5:36 PM

where are the paths? you can't highlight them in the ib? don't have a clue, any random numbers can fit

and shouldn't all contests be fun?
@ 2018-06-21 5:46 PM (#25093 - in reply to #25061) (#25093) Top

rob



Posts: 170
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rob posted @ 2018-06-21 5:46 PM

As far as I can tell, the paths in the example are as follows:

* Palindrome, 1-1 (multiple options, 1426116241 or 1356116531)
* Renban, 6-3 in row 3 of the bottom left grid (621453)
* Even labyrinth, 6-4 along the bottom (642264264)
* Odd labyrinth, 3-5 along the right (315135135)
* Consecutive on-line, 2-2 in the bottom right (2345432)

The Arrow thing doesn't show up.

(I take "fun" here to mean that it's fun as usual with less of a competitive aspect.)
@ 2018-06-21 6:26 PM (#25094 - in reply to #25093) (#25094) Top

mikeylyk



Posts: 16

Country : United States

mikeylyk posted @ 2018-06-21 6:26 PM

too fuzzy for me
@ 2018-06-21 7:39 PM (#25095 - in reply to #25092) (#25095) Top

Administrator



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Country : India

Administrator posted @ 2018-06-21 7:39 PM

mikeylyk - 2018-06-21 5:36 PM

where are the paths? you can't highlight them in the ib? don't have a clue, any random numbers can fit

and shouldn't all contests be fun?

Rob has already answered. There can be multiple paths, so they are not highlighted. Any random numbers cannot fit.
@ 2018-06-21 8:18 PM (#25096 - in reply to #25061) (#25096) Top

rvarun



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rvarun posted @ 2018-06-21 8:18 PM

So if my understanding is right.

1. A path is between two of the ten shaded cells. So there will be five paths.
2. A path can travel across the grid to next orthogonal neighboring grid. Example R1C1 in Grid 2 (Top right) is a neighbour cell of R1C6 of Grid 1 (Top Left)

Edited by rvarun 2018-06-21 8:21 PM
@ 2018-06-21 10:28 PM (#25097 - in reply to #25096) (#25097) Top

Administrator



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Country : India

Administrator posted @ 2018-06-21 10:28 PM

The test start will be delayed by at least 12 hours due to technical issues. The exact start time will be announced here, later.
@ 2018-06-21 10:28 PM (#25098 - in reply to #25096) (#25098) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2018-06-21 10:28 PM

rvarun - 2018-06-21 8:18 PM

So if my understanding is right.

1. A path is between two of the ten shaded cells. So there will be five paths.
2. A path can travel across the grid to next orthogonal neighboring grid. Example R1C1 in Grid 2 (Top right) is a neighbour cell of R1C6 of Grid 1 (Top Left)

Correct.
@ 2018-06-21 10:38 PM (#25099 - in reply to #25061) (#25099) Top

kishy72



Posts: 417
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Country : India

kishy72 posted @ 2018-06-21 10:38 PM

Rules are highly unclear.The example doesn't help much in illustrating the rules.5 paths / 10 shaded cells in each grid or in all grids ?? Where are the paths ? What are the rules of the example ?
@ 2018-06-21 11:02 PM (#25100 - in reply to #25099) (#25100) Top

rajeshk




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rajeshk posted @ 2018-06-21 11:02 PM

There will be 10 cells which will be shaded. 2 cells will connect to each other with one path. To understand a path one can look at Odd Labrinth Sudoku example where the path is formed by Odd Cells.
https://www.funwithpuzzles.com/2014/10/odd-labyrinth-sudoku-daily-su...
In Pathway Sudoku however there are 6 different path rules. Out of these 6 given rules, exactly five rules will be used to create 5 different paths.
It is part of solving solving process to find the paths which connects the given shaded cells.
Rules of the example are similar as the main puzzle. Please do let me know if something is still not clear?
@ 2018-06-22 5:46 PM (#25103 - in reply to #25061) (#25103) Top

rajeshk




Posts: 542
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rajeshk posted @ 2018-06-22 5:46 PM

Let me give some tips which will help to identify the pairs from the given shaded cells.
Odd Path: Both the ends of this path will be odd.
Even Path: Both the ends of this path will be even.
Renban Path: Maximum length of Renban path can be 9 cells as it can contain at max 9 different numbers.
Palindrome Path: Both ends of this path will be same digit.
Incremental Arrow: This is very interesting path. This path requires some home work to be done. Here are some observations regarding incremental arrow path.
Thanks to Prasanna for these tips.
a) Longest arrow path which can be formed with 5 as starting is 5831459437.
b) All even incremental arrow that is longer than 4-5 cells has to the recurring chain e.g. 2684268.......
c) All odd is not possible to go beyond two cells.
d) You can get recurring chain staring with 13 e.g. 134718........
I hope these tips will help to get started with this Pathway Sudoku.
All the best to the participants :)
@ 2018-06-22 10:31 PM (#25104 - in reply to #25061) (#25104) Top

rob



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rob posted @ 2018-06-22 10:31 PM

Re a), aren't there four different paths of that length? 5831459437, 5493257291, 5617853819, 5279651673.

I get two repeating chains (2684... and 134718976392...), and eight maximal finite chains (four short even ones 246, 482, 628, 864; four of length 13, which extend the four paths above to the left by three digits.
@ 2018-06-22 11:33 PM (#25105 - in reply to #25061) (#25105) Top

Administrator



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Country : India

Administrator posted @ 2018-06-22 11:33 PM

Puzzle Booklet


The PB is available now: http://logicmastersindia.com/2018/06F/

@ 2018-06-22 11:49 PM (#25106 - in reply to #25061) (#25106) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2018-06-22 11:49 PM

Notes


1. Ignore the timer as this is a fun test. It is intended to surprise you.
2. There will be 8 answer keys. The scoreboard will not be automatically shown after test completion.
3. You can submit till Wednesday 23:59:59 IST.
4. There is no bonus and no points.

@ 2018-06-23 12:09 AM (#25107 - in reply to #25061) (#25107) Top

Administrator



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Administrator posted @ 2018-06-23 12:09 AM

The test has started.
@ 2018-06-23 12:22 AM (#25108 - in reply to #25104) (#25108) Top

rajeshk




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rajeshk posted @ 2018-06-23 12:22 AM

For a) I meant that if the arrow sequence starts with 5 it can go maximum upto 10 cells.
Thanks for explaining in more details about other arrow sequences.
@ 2018-06-23 7:20 PM (#25113 - in reply to #25099) (#25113) Top

detuned



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detuned posted @ 2018-06-23 7:20 PM

kishy72 - 2018-06-21 5:38 PM

Rules are highly unclear.The example doesn't help much in illustrating the rules.5 paths / 10 shaded cells in each grid or in all grids ?? Where are the paths ? What are the rules of the example ?


Agreed - the IB is truly terrible. It would have been trivial to highlight the paths in the solution, and it wouldn't have been much more effort to explain which path followed which rule.
@ 2018-06-26 5:42 PM (#25119 - in reply to #25061) (#25119) Top

anithra



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Country : India

anithra posted @ 2018-06-26 5:42 PM

Thoroughly enjoyed this puzzle!! I found it difficult but very engaging. Examples of paths in IB would have been good though.
@ 2018-06-26 8:18 PM (#25120 - in reply to #25061) (#25120) Top

rob



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rob posted @ 2018-06-26 8:18 PM

Agreed, a lovely puzzle. Thanks to the author and organizers.

Yes the paths would have been nice to have in the instruction booklet, but it's really not a big deal, easy to figure out by trying to solve the example. And I can see how marking all variants of the paths could have been messy, or misleading if just one was marked.
@ 2018-06-27 9:26 AM (#25121 - in reply to #25120) (#25121) Top

kishy72



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kishy72 posted @ 2018-06-27 9:26 AM

Fantastic construction and good puzzle Rajesh.I presume it must have been painstakingly long to design this grid .I was surprised seeing my standing in the results as I didn't particularly expect to do it well given that I couldn't even complete the IB one. But it went great and was fun solving the contest. I greatly enjoyed how paths interweaved between grids and how the incremental arrow path travelled such far.At some point, understanding the global logic like how the OL path had to go around the COL path helped greatly and it was enjoyable seeing these steps.I can understand why this was rejected for WSC (possibly due to round time constraints).Only negative about the whole contest is that time must have been spent framing the IB rules as it was too vague and could have encouraged more participation if it only had been more clear.
@ 2018-06-27 3:03 PM (#25125 - in reply to #25061) (#25125) Top

antukbala



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Country : Bangladesh

antukbala posted @ 2018-06-27 3:03 PM

I don't get any password for sudoku booklet. logged in my account several times but same result.
@ 2018-06-27 3:55 PM (#25126 - in reply to #25061) (#25126) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2018-06-27 3:55 PM

You need to click on "Start pathways" to get the password.
@ 2018-06-27 6:15 PM (#25127 - in reply to #25126) (#25127) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2018-06-27 6:15 PM

Extension


The test is extended till 12 noon on 28th. There were some technical issues today which have been addressed now.

@ 2018-06-28 4:51 PM (#25130 - in reply to #25127) (#25130) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2018-06-28 4:51 PM

Congratulations to all 32 finishers!

Congratulations to deu, Kwaka, sugitakukun, Nikola and TiiT for finishing in less than 100 minutes.

Among Indian participants, Congratulations to kishy72, mjaipal and Anithra for taking the top 3 places.

Special mention for rob who was the first to complete.

Thanks Rajesh Kumar for the puzzle!

Participants may share feedback in this thread.
Pathway Sudoku - LMI Fun Contest - 22nd to 27th June25 posts • Page 1 of 1 • 1
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