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Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020
   LMI Tests -> Puzzle Ramayan77 posts • Page 2 of 4 • 1 2 3 4
An LMI player
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-21 2:13 PM (#27761 - in reply to #27732) (#27761) Top


 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? Transparent Yajilin
 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? Many puzzles were worth too much or too little
 What was your opinion of the booklet formatting and printing? Just right


peluri
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-21 6:42 PM (#27762 - in reply to #27732) (#27762) Top




Posts: 26
20
Location: Finland
 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? Myopia
 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


bob
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-21 6:58 PM (#27763 - in reply to #27759) (#27763) Top




Posts: 59
2020
Location: USA
Let a = corner with loop arms going down and to the right, b = down and to the left, c = up and to the left, d = up and to the right, - = horizontal, l = vertical, . = empty.
My solution row by row is ..a--b, a-cabl, l..lll, la-cll, ll.acl, dc.d-c
This this leads to the code 320212 which is incorrect. I presume I misinterpreted the rules somewhere but I've never had so much difficulty with a 2-point puzzle.

Thanks for your time and for especially for providing something interesting to do during these crazy times. Please be careful. -bob
swaroop2011
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-21 7:55 PM (#27764 - in reply to #27760) (#27764) Top


PR 2020 (Shading and Loops) Author

Posts: 584
50020202020
Location: india
Timjamiller - 2020-03-21 7:17 AM

This is the first set that I was able to complete in time while live.

So I'm excited about that, even if the test seems to have been on the easier side.

I definitely needed to reread the instructions a couple of times in order to find the solutions, especially for Ripple Loop. But overall I'm pleased with my result. Hooray!


Well Done. Indeed that was the intention, for many people to complete the test. I am glad you enjoyed an are happy.
swaroop2011
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-21 7:56 PM (#27765 - in reply to #27763) (#27765) Top


PR 2020 (Shading and Loops) Author

Posts: 584
50020202020
Location: india
bob - 2020-03-21 6:58 PM

Let a = corner with loop arms going down and to the right, b = down and to the left, c = up and to the left, d = up and to the right, - = horizontal, l = vertical, . = empty.
My solution row by row is ..a--b, a-cabl, l..lll, la-cll, ll.acl, dc.d-c
This this leads to the code 320212 which is incorrect. I presume I misinterpreted the rules somewhere but I've never had so much difficulty with a 2-point puzzle.

Thanks for your time and for especially for providing something interesting to do during these crazy times. Please be careful. -bob


May I know, which 2 point puzzle you are mentioning here? There are many puzzles. (Myopia, RL, Transparent Yajilin?)
Timjamiller
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-21 8:21 PM (#27766 - in reply to #27763) (#27766) Top




Posts: 18

Location: USA
Hey Bob. One misinterpretation you're having is that you're allowing empty spaces to occur. The puzzle instructions say that the loop must visit every cell.

The rule I was having trouble with was the horizontal/vertical adjacency stuff...mostly because I overlooked that in my first readthrough. I was originally thinking that it was path adjacent (like ghirsh) and not cell-adjacent.
Puzzle_Maestro
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-21 8:24 PM (#27767 - in reply to #27763) (#27767) Top




Posts: 16

Location: UK
The instructions say 'Draw a closed loop that connects the centres of ALL cells horizontally or vertically', so your solution is wrong, namely because there are empty cells. Details like these are very important!
WA1729
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-22 12:40 AM (#27768 - in reply to #27732) (#27768) Top


Shading and Loops (PR 2016/17) Author

Posts: 49
2020
Location: USA
 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? Transparent Yajilin
 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


Very nice puzzles! These were all well written. I like Transparent Yajilin a lot and hope it shows up more often.

Favorites:

2 Nurikabe
11 Border Nurikabe
14 Yajilin
16 Ripple Loop
22 Transparent Yajilin
Joo M.Y
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-22 1:05 AM (#27769 - in reply to #27732) (#27769) Top




Posts: 59
2020
Location: South Korea
 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? Ripple 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


Panni
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-22 2:30 AM (#27770 - in reply to #27732) (#27770) Top




Posts: 7

Location: Hungary
 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? Border Nurikabe
 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? Many puzzles were worth too much or too little
 What was your opinion of the booklet formatting and printing? Just right


swaroop2011
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-22 4:11 AM (#27771 - in reply to #27768) (#27771) Top


PR 2020 (Shading and Loops) Author

Posts: 584
50020202020
Location: india
WA1729 - 2020-03-22 12:40 AM

Very nice puzzles! These were all well written. I like Transparent Yajilin a lot and hope it shows up more often.

Favorites:

2 Nurikabe
11 Border Nurikabe
14 Yajilin
16 Ripple Loop
22 Transparent Yajilin


Thank you. I liked it too, a very interesting set of deductions can be possible in this variant. Hopefully, I will create more puzzles of this type in future.
JonaS2010
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-22 3:42 PM (#27772 - in reply to #27732) (#27772) Top




Posts: 21
20
Location: Germany
 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
 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


TiiT
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-22 5:11 PM (#27773 - in reply to #27732) (#27773) Top




Posts: 124
10020
Location: Estonia
 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? Myopia
 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


These were the nicest answer keys I've ever seen in a puzzle competition.
Houk13
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-22 5:27 PM (#27774 - in reply to #27732) (#27774) Top




Posts: 2

Location: Netherlands
I really enjoyed the puzzles, though I think I don't get the windows rules completely. Can someone explain why this solution to puzzle 5 isn't valid? (x = shaded, _ is white)
___xxxxx
xx_x____
_xxxxxxx
_x______
_xxxxxx_
_x____x_
xxxx_xxx
_____x__
rakesh_rai
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-22 5:52 PM (#27775 - in reply to #27774) (#27775) Top



Mean Minis (2020) Author

Posts: 753
5001001002020
Location: India
Houk13:

In your solution, many given shaded cells are showing as unshaded. (Example R2C7). Did you solve the same puzzle?

Otherwise, it seems a valid windows solution.
Houk13
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-22 6:10 PM (#27776 - in reply to #27775) (#27776) Top




Posts: 2

Location: Netherlands
Thanks, I do seem to have made some mistakes copying the puzzle, that explains a lot
bob
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-22 6:25 PM (#27777 - in reply to #27766) (#27777) Top




Posts: 59
2020
Location: USA
Timjamiller - 2020-03-21 9:21 AM

Hey Bob. One misinterpretation you're having is that you're allowing empty spaces to occur. The puzzle instructions say that the loop must visit every cell.

The rule I was having trouble with was the horizontal/vertical adjacency stuff...mostly because I overlooked that in my first readthrough. I was originally thinking that it was path adjacent (like ghirsh) and not cell-adjacent.


Thanks for finding my mistake. Even when re-reading my eyes gloss right over the little word "all" since I am assuming it is a Masyu variation (which it is not). This makes the larger puzzles possible; thanks again. bob
chaotic_iak
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-22 6:30 PM (#27778 - in reply to #27732) (#27778) Top



Typed Logic Author

Posts: 239
10010020
Location: Indonesia
 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
 Which set of puzzles did you like the most? Transparent Yajilin
 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


An LMI player
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-22 6:41 PM (#27779 - in reply to #27732) (#27779) Top


 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
 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


kishy72
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-22 7:10 PM (#27780 - in reply to #27732) (#27780) Top


SM 2020 (Math) Author

Posts: 387
10010010020202020
Location: india
 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? Nurikabe
 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 puzzles with a good balance of difficulty.

I had a smooth run until I hit Windows (7) and Border Nurikabe (12).These 2 ate up a sizeable chunk of my time.In the end, I was just extremely lucky to submit the 12 pointer at exactly the last second !!

Thanks Swaroop for a nice puzzle set.Favourites are Nurikabe and Myopia.
swaroop2011
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-22 8:52 PM (#27781 - in reply to #27773) (#27781) Top


PR 2020 (Shading and Loops) Author

Posts: 584
50020202020
Location: india
TiiT - 2020-03-22 5:11 PM

These were the nicest answer keys I've ever seen in a puzzle competition.


Thank you.
swaroop2011
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-22 8:52 PM (#27782 - in reply to #27780) (#27782) Top


PR 2020 (Shading and Loops) Author

Posts: 584
50020202020
Location: india
kishy72 - 2020-03-22 7:10 PM

Great puzzles with a good balance of difficulty.

I had a smooth run until I hit Windows (7) and Border Nurikabe (12).These 2 ate up a sizeable chunk of my time.In the end, I was just extremely lucky to submit the 12 pointer at exactly the last second !!

Thanks Swaroop for a nice puzzle set.Favourites are Nurikabe and Myopia.


Thank you. Made it just in time. Well done.
An LMI player
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-22 11:46 PM (#27783 - in reply to #27732) (#27783) Top


 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? Transparent Yajilin
 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? Many puzzles were worth too much or too little
 What was your opinion of the booklet formatting and printing? Just right


An LMI player
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-23 3:00 AM (#27784 - in reply to #27732) (#27784) Top


 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
 Which set of puzzles did you like the most? Border Nurikabe
 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


kiwijam
Subject: Re: Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020 @ 2020-03-23 4:47 AM (#27785 - in reply to #27732) (#27785) Top




Posts: 159
1002020
Location: New Zealand
 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? Ripple 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


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