Shading & Loops - 17th to 20th Feb 2017 - Puzzle Ramayan & IPC Qualifier
@ 2017-02-11 10:17 AM (#22494) (#22494) Top

Administrator



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Administrator posted @ 2017-02-11 10:17 AM





Link for rules and other details about Puzzle Ramayan : http://logicmastersindia.com/PR/2016-17PR.asp
Instructions for Shading & Loops - Link

@ 2017-02-13 7:53 AM (#22497 - in reply to #22494) (#22497) Top

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Administrator posted @ 2017-02-13 7:53 AM


Logic Masters India announces Shading & Loops - second episode of Puzzle Ramayan 2016-17

Dates : 17th - 20th February

Instruction Booklet & Submission : Link

Author : Walker Anderson

@ 2017-02-15 8:50 AM (#22519 - in reply to #22494) (#22519) Top

auroux



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auroux posted @ 2017-02-15 8:50 AM

Hmm, I know it's too late to change things now, but I'm not so happy about the design of the answer keys. Why make the answer key different for Bosnian road vs. Bosnian snake? Clearly in Heyawacky you wouldn't need to ask for the lengths of the "groups" of black cells (always 1) if you didn't want to have a uniform answer key system for all shading puzzles, so why throw that away for Bosnian road? (The answer key isn't consistent with the other loop puzzles either since those only ask for the longest segment, not for all segments). I feel that we're just going to get very confused.Denis

Edited by auroux 2017-02-15 8:53 AM
@ 2017-02-16 8:19 AM (#22521 - in reply to #22519) (#22521) Top

Administrator



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Administrator posted @ 2017-02-16 8:19 AM

auroux - 2017-02-15 8:50 AM

Hmm, I know it's too late to change things now, but I'm not so happy about the design of the answer keys. Why make the answer key different for Bosnian road vs. Bosnian snake? Clearly in Heyawacky you wouldn't need to ask for the lengths of the "groups" of black cells (always 1) if you didn't want to have a uniform answer key system for all shading puzzles, so why throw that away for Bosnian road? (The answer key isn't consistent with the other loop puzzles either since those only ask for the longest segment, not for all segments). I feel that we're just going to get very confused.Denis

This is a valid point. The answer key for Bosnian Road will be made consistent with other loop puzzles and this will be updated in the IB and PB.
@ 2017-02-16 9:58 AM (#22523 - in reply to #22494) (#22523) Top

Administrator



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Administrator posted @ 2017-02-16 9:58 AM

Updated IB available (v2)


Instruction Booklet & Submission : Link

The following updates are included in this version:
1. Points Table is added.
2. Number of pages in PB is updated. There will be 8 pages.
3. Answer key for Bosnian Road is changed.
4. The outside clues for Bosnian snake will be shown on the top and left of the grid only. There shall be no outside clues to the right and bottom of the grid.

@ 2017-02-16 10:00 AM (#22524 - in reply to #22494) (#22524) Top

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Administrator posted @ 2017-02-16 10:00 AM

Points Table




@ 2017-02-16 6:24 PM (#22525 - in reply to #22494) (#22525) Top

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Administrator posted @ 2017-02-16 6:24 PM

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@ 2017-02-16 10:17 PM (#22527 - in reply to #22494) (#22527) Top

WA1729




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WA1729 posted @ 2017-02-16 10:17 PM

@ 2017-02-17 2:02 PM (#22529 - in reply to #22494) (#22529) Top

chaotic_iak




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chaotic_iak posted @ 2017-02-17 2:02 PM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Heyawake
 What was your opinion about the answer key extraction? Perfect answer keys
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


Very nice test. Heyawacky 3 is my favorite for the amazing break-in. I need to figure out a logical solution for Yin-Yang 3. But in general, all puzzles are of high quality, with pleasing aesthetics (Yin Yang 2, Lakes 1, Bosnian Road 3, Lakes Loop 2) and nice solving paths.
@ 2017-02-17 2:58 PM (#22530 - in reply to #22494) (#22530) Top

vopani



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vopani posted @ 2017-02-17 2:58 PM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Yin Yang
 What was your opinion about the answer key extraction? Mostly perfect answer keys
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


This was a beautiful set of puzzles. I got a bit lucky with guessing but the solving paths are just fantastic.
Perfect balance of puzzle difficulty and types.

I think this is easily my favourite PR round across the two years.

Great job and thanks a lot Walker! Looking forward to more of your puzzles in the coming years !!!
@ 2017-02-17 3:23 PM (#22531 - in reply to #22494) (#22531) Top

An LMI player



An LMI player posted @ 2017-02-17 3:23 PM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Heyawake
 What was your opinion about the answer key extraction? Mostly perfect answer keys
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


@ 2017-02-17 6:34 PM (#22532 - in reply to #22494) (#22532) Top

rajeshk




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rajeshk posted @ 2017-02-17 6:34 PM

I have doubt for Lakes Loop. It says that "draw a single closed loop that does not touch or cross itself". Here what does NOT touching mean here?

@ 2017-02-17 6:35 PM (#22533 - in reply to #22494) (#22533) Top

An LMI player



An LMI player posted @ 2017-02-17 6:35 PM

 What was your opinion of the distribution of easy/hard puzzles? Too many easy puzzles
 What did you think about the puzzle quality of the test? Very nice
 What was your opinion about the answer key extraction? Answer keys could have been better
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


@ 2017-02-17 9:34 PM (#22534 - in reply to #22532) (#22534) Top

rakesh_rai




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rakesh_rai posted @ 2017-02-17 9:34 PM

rajeshk - 2017-02-17 6:34 PM

I have doubt for Lakes Loop. It says that "draw a single closed loop that does not touch or cross itself". Here what does NOT touching mean here?


"NOT touching" means not touching at a point. If this restriction is not there,then the loop can possibly touch at a point in a cell.
@ 2017-02-18 12:09 AM (#22535 - in reply to #22494) (#22535) Top

rajeshk




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rajeshk posted @ 2017-02-18 12:09 AM

I am not able to read Rakesh's message as the contest is on :)
@ 2017-02-18 8:10 AM (#22536 - in reply to #22494) (#22536) Top

bob



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bob posted @ 2017-02-18 8:10 AM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Almost Simple Loop
 What was your opinion about the answer key extraction? Mostly perfect answer keys
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


Fun test, as are all of the Puzzle Ramayan series. It is satisfying to finish more puzzles within the time limit. I also enjoy the intructionless puzzles (none on this set). Looking forward to the next one.
@ 2017-02-18 3:28 PM (#22537 - in reply to #22494) (#22537) Top

LoHoX



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LoHoX posted @ 2017-02-18 3:28 PM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Fairly Nice
 Which set of puzzles did you like the most? Bosnian Road
 What was your opinion about the answer key extraction? Perfect answer keys
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


@ 2017-02-18 4:52 PM (#22538 - in reply to #22494) (#22538) Top

mohanprashanth



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mohanprashanth posted @ 2017-02-18 4:52 PM

In Heyawacky, does "the white area cannot span across 2 consecutive borders (thick lines)" mean a horizontal or vertical segment of white cells cannot be in more than 2 regions?
@ 2017-02-18 4:55 PM (#22539 - in reply to #22538) (#22539) Top

rakesh_rai




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rakesh_rai posted @ 2017-02-18 4:55 PM

mohanprashanth - 2017-02-18 4:52 PM

In Heyawacky, does "the white area cannot span across 2 consecutive borders (thick lines)" mean a horizontal or vertical segment of white cells cannot be in more than 2 regions?
That is correct.
@ 2017-02-18 5:30 PM (#22541 - in reply to #22494) (#22541) Top

mohanprashanth



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mohanprashanth posted @ 2017-02-18 5:30 PM

Thank you!
@ 2017-02-18 9:31 PM (#22543 - in reply to #22494) (#22543) Top

rob



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rob posted @ 2017-02-18 9:31 PM

That was fun, thanks Walker! There was no time to appreciate the solving paths unfortunately, I'll have to go through the set again. But the puzzles certainly all looked pretty.

Apart from the first one, Almost Simple Loop felt more like Outside Yajilin. I thought Bosnian Snake was a bit of an odd choice as a shading puzzle, particularly with Bosnian Road in the second part. Speaking of Bosnian Road, it would have been nice to avoid the differing notions of loop length for the answer code.

Assuming Lake Loop is original (I don't remember seeing it), that one might have been a fun instructionless puzzle, too, though I guess it not being a variant of another of the loop puzzles is an argument against.
@ 2017-02-19 2:37 AM (#22544 - in reply to #22494) (#22544) Top

Puzlifouk



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Puzlifouk posted @ 2017-02-19 2:37 AM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Heyawake
 What was your opinion about the answer key extraction? Answer keys could have been better
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Many puzzles were worth too much or too little
 What was your opinion of the booklet formatting and printing? Just right


@ 2017-02-19 8:35 AM (#22545 - in reply to #22494) (#22545) Top

swaroop2011




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swaroop2011 posted @ 2017-02-19 8:35 AM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Yin Yang
 What was your opinion about the answer key extraction? Perfect answer keys
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


Excellent set of puzzles.
Exactly suitable for PR environment. Thanks to author and LMI for conducting this test.

Apart from 10min waste of time at start due to printer issue, everthing else went smooth. I really enjoyed the test. I am happy I completed the set, after missing the completion of 1st PR round closely.

YinYang 3 was the one which took most of my time. Rest all were smooth solve.
Heyawake was nice logic. Fortunately i created some Heyawake with similar logic so found it quickly.
@ 2017-02-19 5:35 PM (#22547 - in reply to #22494) (#22547) Top

forcolin




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forcolin posted @ 2017-02-19 5:35 PM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Lakes Loop
 What was your opinion about the answer key extraction? Perfect answer keys
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


@ 2017-02-19 6:38 PM (#22548 - in reply to #22494) (#22548) Top

tamz29



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tamz29 posted @ 2017-02-19 6:38 PM

Thanks for the sprint test :)
I think Lakes Loop is the same as Nurikabe Loop (Akil Oyunlari Magazine Competition), no?
Most of these were intuitive types - so I think guessing is probably more efficient than finding logical paths.
@ 2017-02-19 9:10 PM (#22549 - in reply to #22494) (#22549) Top

An LMI player



An LMI player posted @ 2017-02-19 9:10 PM

 What was your opinion of the distribution of easy/hard puzzles? Too many easy puzzles
 What did you think about the puzzle quality of the test? Fairly Nice
 Which set of puzzles did you like the most? Lakes
 What was your opinion about the answer key extraction? Answer keys could have been better
 What was your opinion of the booklet formatting and printing? Just right


@ 2017-02-19 9:49 PM (#22550 - in reply to #22494) (#22550) Top

Kithyane



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Kithyane posted @ 2017-02-19 9:49 PM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Heyawake
 What was your opinion about the answer key extraction? Answer keys could have been better
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


@ 2017-02-19 10:19 PM (#22551 - in reply to #22494) (#22551) Top

ghirsch



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ghirsch posted @ 2017-02-19 10:19 PM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Heyawake
 What was your opinion about the answer key extraction? Perfect answer keys
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


Thanks for the fun puzzles Walker! I spent way too long on Heyawake 3, but once I found the break-in I was very impressed, and it ended up being the most memorable one from the test.
@ 2017-02-20 2:29 AM (#22552 - in reply to #22494) (#22552) Top

An LMI player



An LMI player posted @ 2017-02-20 2:29 AM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Almost Simple Loop
 What was your opinion about the answer key extraction? Answer keys could have been better
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


@ 2017-02-20 3:45 AM (#22553 - in reply to #22494) (#22553) Top

An LMI player



An LMI player posted @ 2017-02-20 3:45 AM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Bosnian Road
 What was your opinion about the answer key extraction? Answer keys could have been better
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


@ 2017-02-20 4:24 AM (#22554 - in reply to #22494) (#22554) Top

An LMI player



An LMI player posted @ 2017-02-20 4:24 AM

 What did you think about the puzzle quality of the test? Fairly Nice
 Which set of puzzles did you like the most? Heyawake
 What was your opinion about the answer key extraction? Answer keys could have been better
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


@ 2017-02-20 10:56 AM (#22555 - in reply to #22494) (#22555) Top

An LMI player



An LMI player posted @ 2017-02-20 10:56 AM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Lakes Loop
 What was your opinion about the answer key extraction? Mostly perfect answer keys
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


@ 2017-02-20 11:14 AM (#22556 - in reply to #22494) (#22556) Top

Joo M.Y



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Joo M.Y posted @ 2017-02-20 11:14 AM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Lakes
 What was your opinion about the answer key extraction? Mostly perfect answer keys
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


@ 2017-02-20 6:20 PM (#22557 - in reply to #22494) (#22557) Top

An LMI player



An LMI player posted @ 2017-02-20 6:20 PM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Lakes Loop
 What was your opinion about the answer key extraction? Mostly perfect answer keys
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


@ 2017-02-20 6:22 PM (#22558 - in reply to #22494) (#22558) Top

greenhorn



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greenhorn posted @ 2017-02-20 6:22 PM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Heyawake
 What was your opinion about the answer key extraction? Perfect answer keys
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


Great test, thank you Walker!
The biggest Heyawacky is the best one I've ever seen :)

Anyway, I should have done better, but my printer has decided to print only 4 out of 8 pages :(
@ 2017-02-21 3:53 AM (#22559 - in reply to #22494) (#22559) Top

An LMI player



An LMI player posted @ 2017-02-21 3:53 AM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Bosnian Snake
 What was your opinion about the answer key extraction? Answer keys could have been better
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


@ 2017-02-21 8:32 PM (#22561 - in reply to #22494) (#22561) Top

Administrator



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Administrator posted @ 2017-02-21 8:32 PM

Thanks to Walker for authoring this test. Also thanks to Bram for test solving.

Congratulations to Endo, Rob and Hideaki for finishing the test with a combined time of less than 90 minutes. Endo's score is the best ever in any SM or PR episode so far.

Congratulations to Rohan, Swaroop, Rajesh, Ashish and Kishore for taking the top India positions.

Heyawake 3 was attempted by the least number of participants, but it was the most accurate submission too (82/83 correct answers). It had a nice solving path/trick. Those who have not attempted it yet should try it at leisure.
@ 2017-02-22 9:43 PM (#22568 - in reply to #22494) (#22568) Top

An LMI player



An LMI player posted @ 2017-02-22 9:43 PM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Heyawake
 What was your opinion about the answer key extraction? Mostly perfect answer keys
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


There was a slight issue with the differing entry style for the solutions of the Bosnian road compared to the other loop puzzles. I spotted it beforehand but it could have been easier if they all had length of line or number of squares, rather than a mixture.
@ 2017-02-23 8:50 AM (#22571 - in reply to #22568) (#22571) Top

chaotic_iak




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chaotic_iak posted @ 2017-02-23 8:50 AM

Bosnian Road accepted length of lines, because I did it that way.
@ 2017-02-24 12:28 PM (#22578 - in reply to #22543) (#22578) Top

prasanna16391



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prasanna16391 posted @ 2017-02-24 12:28 PM

rob - 2017-02-18 9:31 PM

Apart from the first one, Almost Simple Loop felt more like Outside Yajilin. I thought Bosnian Snake was a bit of an odd choice as a shading puzzle, particularly with Bosnian Road in the second part. Speaking of Bosnian Road, it would have been nice to avoid the differing notions of loop length for the answer code.

Assuming Lake Loop is original (I don't remember seeing it), that one might have been a fun instructionless puzzle, too, though I guess it not being a variant of another of the loop puzzles is an argument against.


The Almost Simple Loop feeling like Outside Yajilin was intended - we wanted to transition from the Simple Loop in last year's PR to something that is like another loop type, but still keeps the link to last year clear.

Last year, when we had a Snake round, some people noted that Snake is also a sub-genre of shading with a mixing in of path constraints. This year we have Pentomino instead of Snake as the specialized round, so it was good to have one snake somewhere and this seemed like a good spot :) Both variants are meant to take something from the other part, Lakes Loop was a step up from Lakes in the Shading side and Bosnian Road was a step up from Bosnian Snake in the Loop side.

Lakes Loop is indeed Nurikabe loop as Tawan pointed out. Since it doesn't have the 2x2 constraint we thought it was ok to name it Lakes loop here, especially to maintain the link to the Lakes type instead of making it feel like bringing in an entirely new type.

These weren't planned beforehand, but after some of Walker's initial submissions it just developed into these ideas.
@ 2017-02-28 1:30 AM (#22604 - in reply to #22494) (#22604) Top

WA1729




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WA1729 posted @ 2017-02-28 1:30 AM

Puzzle Ramayan Shading and Loops has concluded. Congratulations to the top three finishers: Ken Endo, Robert Vollmert, and Hideaki Jo. Also, congrats to the top three finishers from India: Rohan Rao, Swaroop Guggilam, and Rajesh Kumar.
Overall, I am happy with how the test went. Thanks to everyone who participated!