Asian Sudoku Championship 2025
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Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 202077 posts • Page 2 of 4 • 1 2 3 4
@ 2020-03-21 2:13 PM (#27761 - in reply to #27732) (#27761) Top

An LMI player



An LMI player posted @ 2020-03-21 2:13 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? 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


@ 2020-03-21 6:42 PM (#27762 - in reply to #27732) (#27762) Top

peluri



Posts: 26
20
Country : Finland

peluri posted @ 2020-03-21 6:42 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? 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


@ 2020-03-21 6:58 PM (#27763 - in reply to #27759) (#27763) Top

bob



Posts: 59
2020
Country : United States

bob posted @ 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
@ 2020-03-21 7:55 PM (#27764 - in reply to #27760) (#27764) Top

swaroop2011




Posts: 668
500100202020
Country : India

swaroop2011 posted @ 2020-03-21 7:55 PM

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.
@ 2020-03-21 7:56 PM (#27765 - in reply to #27763) (#27765) Top

swaroop2011




Posts: 668
500100202020
Country : India

swaroop2011 posted @ 2020-03-21 7:56 PM

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?)
@ 2020-03-21 8:21 PM (#27766 - in reply to #27763) (#27766) Top

Timjamiller



Posts: 54
2020
Country : United States

Timjamiller posted @ 2020-03-21 8:21 PM

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.
@ 2020-03-21 8:24 PM (#27767 - in reply to #27763) (#27767) Top

Puzzle_Maestro



Posts: 25
20
Country : United Kingdom

Puzzle_Maestro posted @ 2020-03-21 8:24 PM

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!
@ 2020-03-22 12:40 AM (#27768 - in reply to #27732) (#27768) Top

WA1729




Posts: 65
202020
Country : United States

WA1729 posted @ 2020-03-22 12:40 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? 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
@ 2020-03-22 1:05 AM (#27769 - in reply to #27732) (#27769) Top

Joo M.Y



Posts: 72
202020
Country : South Korea

Joo M.Y posted @ 2020-03-22 1:05 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? 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


@ 2020-03-22 2:30 AM (#27770 - in reply to #27732) (#27770) Top

Panni



Posts: 9

Country : Hungary

Panni posted @ 2020-03-22 2:30 AM

 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


@ 2020-03-22 4:11 AM (#27771 - in reply to #27768) (#27771) Top

swaroop2011




Posts: 668
500100202020
Country : India

swaroop2011 posted @ 2020-03-22 4:11 AM

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.
@ 2020-03-22 3:42 PM (#27772 - in reply to #27732) (#27772) Top

JonaS2010



Posts: 22
20
Country : Germany

JonaS2010 posted @ 2020-03-22 3:42 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
 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


@ 2020-03-22 5:11 PM (#27773 - in reply to #27732) (#27773) Top

TiiT



Posts: 139
10020
Country : Estonia

TiiT posted @ 2020-03-22 5:11 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? 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.
@ 2020-03-22 5:27 PM (#27774 - in reply to #27732) (#27774) Top

Houk13



Posts: 2

Country : The Netherlands

Houk13 posted @ 2020-03-22 5:27 PM

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__
@ 2020-03-22 5:52 PM (#27775 - in reply to #27774) (#27775) Top

rakesh_rai




Posts: 774
500100100202020
Country : India

rakesh_rai posted @ 2020-03-22 5:52 PM

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.
@ 2020-03-22 6:10 PM (#27776 - in reply to #27775) (#27776) Top

Houk13



Posts: 2

Country : The Netherlands

Houk13 posted @ 2020-03-22 6:10 PM

Thanks, I do seem to have made some mistakes copying the puzzle, that explains a lot
@ 2020-03-22 6:25 PM (#27777 - in reply to #27766) (#27777) Top

bob



Posts: 59
2020
Country : United States

bob posted @ 2020-03-22 6:25 PM

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
@ 2020-03-22 6:30 PM (#27778 - in reply to #27732) (#27778) Top

chaotic_iak




Posts: 241
1001002020
Country : Indonesia

chaotic_iak posted @ 2020-03-22 6:30 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
 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


@ 2020-03-22 6:41 PM (#27779 - in reply to #27732) (#27779) Top

An LMI player



An LMI player posted @ 2020-03-22 6:41 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
 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


@ 2020-03-22 7:10 PM (#27780 - in reply to #27732) (#27780) Top

kishy72



Posts: 419
100100100100
Country : India

kishy72 posted @ 2020-03-22 7:10 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? 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.
@ 2020-03-22 8:52 PM (#27781 - in reply to #27773) (#27781) Top

swaroop2011




Posts: 668
500100202020
Country : India

swaroop2011 posted @ 2020-03-22 8:52 PM

TiiT - 2020-03-22 5:11 PM

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


Thank you.
@ 2020-03-22 8:52 PM (#27782 - in reply to #27780) (#27782) Top

swaroop2011




Posts: 668
500100202020
Country : India

swaroop2011 posted @ 2020-03-22 8:52 PM

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.
@ 2020-03-22 11:46 PM (#27783 - in reply to #27732) (#27783) Top

An LMI player



An LMI player posted @ 2020-03-22 11:46 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? 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


@ 2020-03-23 3:00 AM (#27784 - in reply to #27732) (#27784) Top

An LMI player



An LMI player posted @ 2020-03-23 3:00 AM

 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


@ 2020-03-23 4:47 AM (#27785 - in reply to #27732) (#27785) Top

kiwijam



Posts: 187
10020202020
Country : New Zealand

kiwijam posted @ 2020-03-23 4:47 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? 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


Shading and Loops - 20th - 25th Mar 2020 - Puzzle Ramayan & IPC Qualifier 202077 posts • Page 2 of 4 • 1 2 3 4
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