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We are Puzzlers Club - Part 2- LMI August Puzzle Test (9th - 15th Aug) Score Discuss

Snake Variations Contest - 2015
   LMI Tests -> Annual Competitions31 posts • Page 1 of 2 • 1 2
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Subject: Snake Variations Contest - 2015 @ 2015-11-01 11:26 PM (#19747) (#19747) Top


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INSTRUCTIONS BOOKLET IS UPLOADED



Edited by rakesh_rai 2015-11-02 10:22 PM
ashaash11ash
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-03 10:15 AM (#19772 - in reply to #19747) (#19772) Top


Snakes (PR 2015/16) Author

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Any queries regarding the IB.. feel free to ask..


Edited by ashaash11ash 2015-11-03 10:15 AM
swaroop2011
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-03 10:32 AM (#19773 - in reply to #19747) (#19773) Top


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Looks interesting types, and would serve as a good practice before Snake round appears soon in PR by you.

As the Puzzle types for the linked snake is different than rest of the test, it would be helpful if there is an example for the same, even a small one would do.
ashaash11ash
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-03 11:08 AM (#19775 - in reply to #19747) (#19775) Top


Snakes (PR 2015/16) Author

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I will soon post an example for the same.. However this contest will be an easy one...
rob
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-03 1:57 PM (#19779 - in reply to #19747) (#19779) Top


Classics & Regions (PR 2016/17) Author

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The rules for the classic snake state that the centre will be given, but the example doesn't show it. Is it correct that all four classic snakes will have head, tail and centre given, but no total length?

Just to confirm, for the loop snake, you put in a snake, and then the puzzle is solvable as a "simple loop"?

For the coded snake, may there be gaps in the set of clues, and is 0 permitted?

For the linked snake, does the masyu white pearl rule extend into the neighbouring quadrants? I.e., if there's a white pearl on the edge, and the snake passes this orthogonally to the grid edge, does the cell in the next grid count as a possible turn?

Thanks!
vopani
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-03 2:40 PM (#19780 - in reply to #19779) (#19780) Top


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The rules for the classic snake state that the centre will be given, but the example doesn't show it. Is it correct that all four classic snakes will have head, tail and centre given, but no total length?

Good catch. I believe the instructions need to be corrected. The example is correct, the centre will NOT be given.

Just to confirm, for the loop snake, you put in a snake, and then the puzzle is solvable as a "simple loop"?

Yes, that is correct.

For the coded snake, may there be gaps in the set of clues, and is 0 permitted?

The range of numbers possible for the alphabets will be given. Eg: If there are 8 alphabets, range can be 0~7, 1~8, 1~9 (with one missing), etc. It will be given.

For the linked snake, does the masyu white pearl rule extend into the neighbouring quadrants? I.e., if there's a white pearl on the edge, and the snake passes this orthogonally to the grid edge, does the cell in the next grid count as a possible turn?

The rules apply ONLY to that particular quadrant. The puzzle is such that there won't be any confusion/discrepancy like the example you mentioned :-)
rvarun
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-03 11:00 PM (#19786 - in reply to #19747) (#19786) Top




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Can I have some links to learn how to solve Snake type puzzles. I have not solved one yet.
rob
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-04 3:06 AM (#19789 - in reply to #19747) (#19789) Top


Classics & Regions (PR 2016/17) Author

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The instruction booklet has links to two previous Snake Variation contests. Also, croco-puzzle is currently running a series of snake variants: http://www.croco-puzzle.com/Ue-Raetsel/serie.php?serie=60 (though the rules are in German, but feel free to ask).
chaotic_iak
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-04 5:57 AM (#19790 - in reply to #19747) (#19790) Top



NEW, HUGE, AND CHALLENGING Author

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Loop Snake: Is the loop necessarily unique? May the loop go through black cells (the given ones, not the snake)?
vopani
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-04 7:54 AM (#19791 - in reply to #19790) (#19791) Top


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chaotic_iak - 2015-11-04 5:57 AM

Loop Snake: Is the loop necessarily unique? May the loop go through black cells (the given ones, not the snake)?

The loop is not necessarily unique. The loop CANNOT go through given black cells.
Administrator
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-04 2:00 PM (#19792 - in reply to #19747) (#19792) Top


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Instruction Booklet Update

An updated version of the Instruction Booklet has been uploaded, incorporating the forum discussions.


Administrator
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-04 2:01 PM (#19793 - in reply to #19791) (#19793) Top


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Rohan Rao - 2015-11-04 7:54 AM

chaotic_iak - 2015-11-04 5:57 AM

Loop Snake: Is the loop necessarily unique? May the loop go through black cells (the given ones, not the snake)?

The loop is not necessarily unique. The loop CANNOT go through given black cells.

However, for this contest, the loop WILL BE unique in all the puzzles, and this has been added to the instructions.
ashaash11ash
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-06 11:34 AM (#19830 - in reply to #19747) (#19830) Top


Snakes (PR 2015/16) Author

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Link puzzle Example



(link puzzle.png)



Attachments
----------------
Attachments link puzzle.png (30KB - 7 downloads)
Administrator
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-06 8:05 PM (#19835 - in reply to #19830) (#19835) Top


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Test start delayed by six hours

The test will start at 5.30 AM IST on November 07.

Administrator
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-06 10:48 PM (#19837 - in reply to #19747) (#19837) Top


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Explaining the answer key of Toroidal

In Toroidal, you need to continue counting when the snake wraps around. For example, the accepted answer keys for all the columns will be : 22205060 OR 33316071



rob
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-06 11:17 PM (#19838 - in reply to #19830) (#19838) Top


Classics & Regions (PR 2016/17) Author

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Thanks for the "Linked Snake" example, it does a very good job pointing out that clues don't affect the other quadrants, I made errors there quite a few times.
Administrator
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-07 4:49 AM (#19840 - in reply to #19838) (#19840) Top


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Further delay

The test is further delayed. Contest start time will be announced soon.

Administrator
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-07 12:37 PM (#19845 - in reply to #19840) (#19845) Top


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Contest has started

The test started at 1300 hrs IST on November 7th.

achan1058
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-07 8:43 PM (#19853 - in reply to #19747) (#19853) Top




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Is the solution to #9 on the contest unique? Correct me if I am wrong, but it seems that the top right corner can be done in two ways.
rakesh_rai
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-07 8:53 PM (#19854 - in reply to #19853) (#19854) Top



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achan1058 - 2015-11-07 8:43 PM

Is the solution to #9 on the contest unique? Correct me if I am wrong, but it seems that the top right corner can be done in two ways.


It is unique. Given black cells are NOT part of the snake.
prasanna16391
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-07 9:05 PM (#19855 - in reply to #19854) (#19855) Top


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rakesh_rai - 2015-11-07 8:53 PM

achan1058 - 2015-11-07 8:43 PM

Is the solution to #9 on the contest unique? Correct me if I am wrong, but it seems that the top right corner can be done in two ways.


It is unique. Given black cells are NOT part of the snake.


Maybe you can show us a solution which doesn't match the answer key? I cannot see an alternate solution.
achan1058
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-07 9:14 PM (#19856 - in reply to #19747) (#19856) Top




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Ah, I see. It was not unique in v1 of the booklet. Luckily, the system took my answer anyways.
rob
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-07 11:07 PM (#19861 - in reply to #19747) (#19861) Top


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Whew, what a rush! Great fun, thank you!
swaroop2011
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-07 11:43 PM (#19862 - in reply to #19747) (#19862) Top


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Nice set of puzzles. Fun test. I felt as this test anyway doesn't count for ratings, I would have preferred bit more time (90 min test). I was able to solve all puzzles but may be slow, but i continued solving after the time is over and I realized few of the high pointers later were very easy in comparison to few other low pointers. But anyway completed all puzzles. May be took 30-40 min more considering I took 20 min to do Coded Snake big pointer (was doing lot of mistakes due to some un-necessary assumptions).
Thanks ashish for this set.
rob
Subject: Re: Snake Variations Contest - 2015 @ 2015-11-07 11:58 PM (#19863 - in reply to #19862) (#19863) Top


Classics & Regions (PR 2016/17) Author

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swaroop2011 - 2015-11-07 11:43 PM
I felt as this test anyway doesn't count for ratings, I would have preferred bit more time (90 min test).


Oh it doesn't? That's a pity, why not?
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