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Loops - 5th - 10th Feb 2021 - Puzzle Ramayan & IPC Qualifier 202114 posts • Page 1 of 1 • 1
@ 2021-02-03 2:33 PM (#28889) (#28889) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2021-02-03 2:33 PM




Link for rules and other details about Puzzle Ramayan: http://logicmastersindia.com/PR/2021pr.asp
The Instruction booklet can be found on the submission page - https://logicmastersindia.com/live/?contest=PR202102


@ 2021-02-03 10:05 PM (#28893 - in reply to #28889) (#28893) Top

prasanna16391



Posts: 1762
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Country : India

prasanna16391 posted @ 2021-02-03 10:05 PM

Instructions Booklet


The Instruction booklet is now published on the submission page. The points tally will be added to it and on the forum tomorrow.

For penpa links:
Slitherlink & Slitherlink - S & W: Composite Edge In, Out - On laptop you can use left click on cells to highlight as yellow or green to signify "inside" and "outside" loop, on mobile you can tap on the cells. Dragging will let you draw the loop, and right clicking (or tapping for mobile) on a grid-line will let you put an 'x'.

Masyu, Round Trip, Masyu - All Cells: Composite Line or x - Dragging will let you draw the loop, and right clicking (or tapping for mobile) on a grid-line will let you put an 'x'.

Ripple Loop: Tab between Composite Line or x, and Number Normal - We have allowed this tabbing to notate whether a circle has "straight" or "turn" behaviour, as shown in the example solution. Default landing is Composite Line or x, same behaviour as Masyu, etc. above.

Country Road: Composite Line, O and X - Drag for loop, click within the cell to mark O (loop cell) or X (Empty cell).

Regional Yajilin: Composite Yajilin mode - click for shaded cell, right click for "dot" to signify as loop cell, drag for loop.

@ 2021-02-04 3:08 PM (#28899 - in reply to #28893) (#28899) Top

prasanna16391



Posts: 1762
1000500100100202020
Country : India

prasanna16391 posted @ 2021-02-04 3:08 PM

Points Table


https://logicmastersindia.com/PR/202102/Points.png

The points table is here.

A new Instruction Booklet has also been uploaded with the points.

Important Note: While all answer keys count length of loops, please remember that the number clues for Country Road and Round Trip count number of cells.

This is just a clarification because we saw some new solvers getting confused by this.

@ 2021-02-04 9:47 PM (#28900 - in reply to #28889) (#28900) Top

prasanna16391



Posts: 1762
1000500100100202020
Country : India

prasanna16391 posted @ 2021-02-04 9:47 PM

Puzzle Booklet


The password protected puzzle booklet can now be downloaded from the submission page. The booklet has 9 pages.

@ 2021-02-05 10:47 PM (#28911 - in reply to #28889) (#28911) Top

TiiT



Posts: 139
10020
Country : Estonia

TiiT posted @ 2021-02-05 10:47 PM

Tough puzzles. But generally solvable and interesting. One exception was puzzle no 16 Regional Yajilin, which was in my opinion far from 4 points and where I spent pretty significant amount of time. I feel that the testers were only top solvers. I don't want to say that you must use beginners, but maybe it's useful to use some medium solvers. Comparing to puzzle 17, which also gave 4 points it was a lot harder - unless there was some extra trick or symmetry what only very experienced players know. I tried it, guessed everywhere but nothing seemed to work.
But on the other hand seeing the top timings I admit that probably I'm just an amateur.

Additionally: I really solved puzzle no 17 with reasonable amount of time and also 8 pointer started to go somewhere. Just 3 minutes was too small time to solve it to me.

Edited by TiiT 2021-02-05 10:49 PM
@ 2021-02-05 11:34 PM (#28912 - in reply to #28889) (#28912) Top

Nehsb



Posts: 5

Country : United States

Nehsb posted @ 2021-02-05 11:34 PM

There is a trick for puzzle no 16 that makes it solve very quickly. In fact, once you know the trick, it might be the easiest puzzle on the entire test. (rot13: guvax cnevgl)

Giving it 4 points had some weird psychological effect for me though. I looked at it, thought about using that trick, dismissed the idea because "it's the easiest puzzle in this section", and then gave up on doing it 10 minutes later. Finished the test, went back to it, solved almost immediately.

P.S. Really great puzzles for this one. Almost every puzzle was unique and memorable.
@ 2021-02-06 5:06 PM (#28913 - in reply to #28889) (#28913) Top

Nityant



Posts: 21
20
Country : India

Nityant posted @ 2021-02-06 5:06 PM

What a wonderful set!
Enjoyed it thoroughly. Favorites were 3rd regional yajilin and last slitherlink(s&w)
Thanks to Ashish for the contest

Edited by Nityant 2021-02-06 5:07 PM
@ 2021-02-06 8:21 PM (#28914 - in reply to #28889) (#28914) Top

vopani



Posts: 739
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Country : India

vopani posted @ 2021-02-06 8:21 PM

Very nice puzzles but too hard for PR, that made it less enjoyable.
I felt the points distribution was a bit off, but maybe it was just my preferences.

Favourite puzzles:
Slitherlink 3
Ripple Loop 2
Masyu 2

Thanks Ashish!
@ 2021-02-07 6:40 PM (#28915 - in reply to #28889) (#28915) Top

professorX



Posts: 34
20
Country : India

professorX posted @ 2021-02-07 6:40 PM

I have a suggestion. Can LMI implement a change in the answers input page for contests such that once the test is over, I can check if my answers for unsolved puzzles are correct or not without affecting my score? Currently I think waiting for solution booklet is the only option. Kindly respond.
@ 2021-02-08 1:31 PM (#28916 - in reply to #28915) (#28916) Top

kishy72



Posts: 417
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Country : India

kishy72 posted @ 2021-02-08 1:31 PM

Excellent set of puzzles. Had a smooth run in almost all genres until the first of Regional Yajilin puzzles.
The choice of puzzles for the contest was as impressive as the solve paths. I enjoyed the set very much. Would love to see Round trip and Country road puzzles make an appearance in future contests.
Thanks Ashish for a great contest !
@ 2021-02-11 8:49 AM (#28917 - in reply to #28916) (#28917) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2021-02-11 8:49 AM

Thanks to the 301 participants.

Congratulations to Walker Anderson, Endo Ken and Freddie Hand for taking the top 3 spots, and 150+ points each.

Also, Congratulations to Rohan Rao, Kishore Sridharan and Rajesh Kumar for taking the top 3 spots from India.

Thanks to Ashish Kumar for authoring this round!
@ 2021-02-11 4:17 PM (#28919 - in reply to #28889) (#28919) Top

greenhorn



Posts: 164
100202020
Country : Slovakia

greenhorn posted @ 2021-02-11 4:17 PM

Hi, I got some technical issues during the test and had to refresh my browser. Then I realized the timer was reset as well so I lost track of time. Is this intentional or some kind of bug?

Thanks
Matus
@ 2021-02-11 5:19 PM (#28920 - in reply to #28889) (#28920) Top

prasanna16391



Posts: 1762
1000500100100202020
Country : India

prasanna16391 posted @ 2021-02-11 5:19 PM

From what we have seen, the first seconds after a refresh resets the timer but then it comes back down to where its supposed to be. We have had reports of alternate behaviours though and are looking into it.
@ 2021-04-28 3:14 AM (#29197 - in reply to #28889) (#29197) Top

prasanna16391



Posts: 1762
1000500100100202020
Country : India

prasanna16391 posted @ 2021-04-28 3:14 AM

Solution Booklet - Link
Loops - 5th - 10th Feb 2021 - Puzzle Ramayan & IPC Qualifier 202114 posts • Page 1 of 1 • 1
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