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PR 2020 (Shading and Loops) Author
Posts: 668
  
Location: India | Puzzle_Maestro - 2020-03-20 8:17 PM
When you have people finishing the test in 27 minutes, it's probably too easy! Despite this, I thought the puzzles were very nice and fun to solve, so overall an excellent test.
Thank you. The aim is to encourage more newcomers and so the difficulty was set towards easier with some challenging stuff for top solvers. I am glad you had fun. |
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | anurag - 2020-03-20 10:24 PM
Thanks for an easy-raised-to-the-power-of-2 test. The puzzle quality was very decent. I thought the 7-pointer Trio cut and 12-pointeer Nurikabe were overrated though. On the other hand, I struggled 25 minutes to break the tricky loop closure in the centre-left center in the 10-pointer RL!
Thank you for the feedback. Sometimes the points can be varying based on the experience, as some of them find shading and loop puzzles easy while some find it hard, so there might be some minor variation in the Points to Difficulty experience. But I hope overall it was as close to its possible. Ripple Loop indeed was challenging. |
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | priyambhushan - 2020-03-21 2:50 AM
Lovely puzzle set, although I found it quite hard. That, however, is probably because I am weak at some of these shading variants, but I enjoyed it!
Thanks, Swaroop!
And thanks for dedicating some of the puzzles to Shaheer :) wonderful gesture...
Thanks Priyam. I am confident you will master it soon. |
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | bob - 2020-03-21 3:18 AM
Very hard for me as usual but i am just an average solver. Most were fun enough without the timer, except the ripple loop puzzles. I found even the 2 pointer to be impossible. I solved it several times and even downloaded the instructions/examples again during the test and do not understand where i am wrong. My solution is 320212
Thank's for your feedback. We would be happy to assist you if you need help in solving certain puzzles. You can post here, where you are stuck, and we can guide you through the next steps.
I can only inform you that, all puzzles are logically approachable.
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Posts: 54
Location: United States | 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! |
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| | 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 | |
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Posts: 26
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 | |
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Posts: 59
Location: United States | 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 |
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PR 2020 (Shading and Loops) Author
Posts: 668
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. |
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PR 2020 (Shading and Loops) Author
Posts: 668
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?) |
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Posts: 54
Location: United States | 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. |
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Posts: 25
Location: United Kingdom | 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! |
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Shading and Loops (PR 2016/17) Author
Posts: 64
Location: United States | | 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 |
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Posts: 72
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 | |
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Posts: 9
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 | |
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PR 2020 (Shading and Loops) Author
Posts: 668
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. |
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Posts: 22
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 | |
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Posts: 139
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. |
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Posts: 2
Location: The 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__ |
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Mean Minis (2020) Author
Posts: 774
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. |
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Posts: 2
Location: The Netherlands | Thanks, I do seem to have made some mistakes copying the puzzle, that explains a lot |
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Posts: 59
Location: United States | 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 |
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Typed Logic Author
Posts: 241
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 | |
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| | 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 | |
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SM 2020 (Math) Author
Posts: 417
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. |
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WSPC 2017 • Schedule • Participation • Location • WSC • WPC • Contact •Search •Recent
Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 2020
