Connected Puzzles - 25th - 29th Jan 2019 - Puzzle Ramayan & IPC Qualifier
@ 2019-01-20 3:32 PM (#26467) (#26467) Top

Administrator



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Administrator posted @ 2019-01-20 3:32 PM




Link for rules and other details about Puzzle Ramayan: http://logicmastersindia.com/PR/2019pr.asp
Instructions for Connected Puzzles - http://logicmastersindia.com/PR/2019012/
@ 2019-01-21 8:50 PM (#26469 - in reply to #26467) (#26469) Top

vopani



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vopani posted @ 2019-01-21 8:50 PM

Some of us are traveling for the Asian Sudoku Championship next weekend. Can this be extended by a day?
@ 2019-01-22 9:17 AM (#26470 - in reply to #26467) (#26470) Top

Administrator



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Administrator posted @ 2019-01-22 9:17 AM

Instruction Booklet


The Instruction Booklet is now available here: http://logicmastersindia.com/lmitests/dl.asp?attachmentid=756

@ 2019-01-22 9:19 AM (#26471 - in reply to #26469) (#26471) Top

Administrator



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Administrator posted @ 2019-01-22 9:19 AM

vopani - 2019-01-21 8:50 PM

Some of us are traveling for the Asian Sudoku Championship next weekend. Can this be extended by a day?

The test will be extended till January 30 23:59 hours (IST).
@ 2019-01-22 9:44 AM (#26472 - in reply to #26471) (#26472) Top

vopani



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vopani posted @ 2019-01-22 9:44 AM

Administrator - 2019-01-22 9:19 AM

vopani - 2019-01-21 8:50 PM

Some of us are traveling for the Asian Sudoku Championship next weekend. Can this be extended by a day?

The test will be extended till January 30 23:59 hours (IST).

Thanks!
@ 2019-01-22 12:00 PM (#26473 - in reply to #26467) (#26473) Top

mstang




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mstang posted @ 2019-01-22 12:00 PM

For Twopa, how can we decide which Tapa puzzle to put in which answer blanks, if the point is that the two grids can be interchanged to produce a (technically) new solution?

Edited by mstang 2019-01-22 12:25 PM
@ 2019-01-22 4:38 PM (#26474 - in reply to #26473) (#26474) Top

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Administrator posted @ 2019-01-22 4:38 PM

mstang - 2019-01-22 12:00 PM

For Twopa, how can we decide which Tapa puzzle to put in which answer blanks, if the point is that the two grids can be interchanged to produce a (technically) new solution?

Good question.

The situation of "deciding which Tapa puzzle to put where" will not arise - One shaded cell will be given in one of the grids. This means the cell will be shaded in one solution and not in the other. The shaded cell is an added given which may also be used as a clue to solve the puzzle.
@ 2019-01-22 9:00 PM (#26475 - in reply to #26474) (#26475) Top

Administrator



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Administrator posted @ 2019-01-22 9:00 PM

Updated Instruction Booklet


An updated version of the Instruction Booklet is now available: http://logicmastersindia.com/PR/2019012/

Changes
- End Date changed to 30th January
- Example updated for Twopa
- Text added for Twopa "General rules"

@ 2019-01-22 9:05 PM (#26476 - in reply to #26467) (#26476) Top

rob



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rob posted @ 2019-01-22 9:05 PM

Puzzle 19-22 Skyscrapers – Easy as 123 Mastermind: This isn't really "Mastermind" at all, is it? Just shared clues between the adjacent grids if I understand the example correctly.
@ 2019-01-22 9:11 PM (#26477 - in reply to #26467) (#26477) Top

rob



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rob posted @ 2019-01-22 9:11 PM

Also, the contest page is titled Classics and Evergreens.
@ 2019-01-23 1:22 AM (#26478 - in reply to #26476) (#26478) Top

forcolin




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forcolin posted @ 2019-01-23 1:22 AM

rob - 2019-01-22 9:05 PM

Puzzle 19-22 Skyscrapers – Easy as 123 Mastermind: This isn't really "Mastermind" at all, is it? Just shared clues between the adjacent grids if I understand the example correctly.


either that, or the explanation of what the mastermind clues mean (like in puzzles 17-18) is missing

this contest looks exciting !!!
@ 2019-01-23 11:34 AM (#26479 - in reply to #26467) (#26479) Top

Kithyane



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Kithyane posted @ 2019-01-23 11:34 AM

Is the explanation of the Minesweeper answer key wrong ? Looking at the example, I feel it is simply "the number of mines in each row".
@ 2019-01-23 2:03 PM (#26480 - in reply to #26476) (#26480) Top

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Administrator posted @ 2019-01-23 2:03 PM

rob - 2019-01-22 9:05 PM

Puzzle 19-22 Skyscrapers – Easy as 123 Mastermind: This isn't really "Mastermind" at all, is it? Just shared clues between the adjacent grids if I understand the example correctly.

The name of the puzzle will be reworded and will not include "mastermind"
@ 2019-01-23 2:05 PM (#26481 - in reply to #26479) (#26481) Top

Administrator



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Administrator posted @ 2019-01-23 2:05 PM

Kithyane - 2019-01-23 11:34 AM

Is the explanation of the Minesweeper answer key wrong ? Looking at the example, I feel it is simply "the number of mines in each row".

The answer key will be to enter contents of two rows/columns. This will be corrected in the next version of IB.
@ 2019-01-23 2:40 PM (#26482 - in reply to #26477) (#26482) Top

Administrator



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Administrator posted @ 2019-01-23 2:40 PM

rob - 2019-01-22 9:11 PM

Also, the contest page is titled Classics and Evergreens.

The contest does include some classic/evergreen puzzles like minesweeper, fillomino, skyscraper and tapa.

The contest name will be corrected before the start of the test.
@ 2019-01-23 9:58 PM (#26483 - in reply to #26467) (#26483) Top

Administrator



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Administrator posted @ 2019-01-23 9:58 PM

Updated Instruction Booklet


A further updated version of the Instruction Booklet is now available: http://logicmastersindia.com/PR/2019012/

Changes
- Puzzle 19-22: Name change and instructions re-worded
- Points Table: Name change of one puzzle
- Puzzle 13-16: Answer key description changed for minesweeper

@ 2019-01-25 5:57 AM (#26484 - in reply to #26467) (#26484) Top

randomperson1729



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Country : United States

randomperson1729 posted @ 2019-01-25 5:57 AM

For the linked minesweeper/nanro, are numbered cells always blank, or can there be a mine on those spaces? The instructions were not clear on that front.
@ 2019-01-25 11:21 AM (#26485 - in reply to #26484) (#26485) Top

Administrator



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Administrator posted @ 2019-01-25 11:21 AM

randomperson1729 - 2019-01-25 5:57 AM

For the linked minesweeper/nanro, are numbered cells always blank, or can there be a mine on those spaces? The instructions were not clear on that front.

For the minesweeper, numbered cells cannot contain mines. The instructions mention this indirectly "Place mines in some empty cells"
@ 2019-01-25 11:51 AM (#26486 - in reply to #26467) (#26486) Top

Administrator



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Administrator posted @ 2019-01-25 11:51 AM

Final Instruction Booklet


An updated version of the Instruction Booklet is now available: http://logicmastersindia.com/PR/2019012/

Changes
- Points table added
- Kurotto example and instructions updated (Note on circles added)
- Minesweeper instructions clarification added

@ 2019-01-25 11:59 AM (#26487 - in reply to #26467) (#26487) Top

Administrator



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Administrator posted @ 2019-01-25 11:59 AM

Puzzle Booklet and Test Start Time


Puzzle Booklet is available for download on the contest page.

The test will start around 15:00 IST.

@ 2019-01-25 12:00 PM (#26488 - in reply to #26482) (#26488) Top

Administrator



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Administrator posted @ 2019-01-25 12:00 PM

Administrator - 2019-01-23 2:40 PM

rob - 2019-01-22 9:11 PM

Also, the contest page is titled Classics and Evergreens.

The contest does include some classic/evergreen puzzles like minesweeper, fillomino, skyscraper and tapa.

The contest name will be corrected before the start of the test.

This is corrected now.
@ 2019-01-25 3:02 PM (#26489 - in reply to #26488) (#26489) Top

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Administrator posted @ 2019-01-25 3:02 PM

The test has started now.
@ 2019-01-25 4:07 PM (#26490 - in reply to #26467) (#26490) Top

An LMI player



An LMI player posted @ 2019-01-25 4:07 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? Linked Maxi 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


@ 2019-01-25 7:59 PM (#26491 - in reply to #26467) (#26491) Top

rob



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rob posted @ 2019-01-25 7:59 PM

Great concept, and pretty good test, thanks Prasanna!

I tripped up a bit on the first Twopa, thinking I couldn't get out under the 13s in both puzzles. I feel like they were quite tricky anyway, an easier starting type would have felt more friendly.

The Fillomino relay types are really fun ideas. Some of the types were a bit low on interaction, with the connection rule mostly coming in towards the end of the solve. But keeping them easy seems appropriate for the PR.

* The Twopa disambiguation via shaded cells late in the solve were a bit of a pain. If you want to do it like this, at least ask for the same rows/columns in both grids, so it's easy to read off if you've solved the other way around? Or ideally just accept both combinations.
* The code order and direction on the right grids in the 4-by-4 types is confusing. Intuitively, I'd want to fill the "top" codes before the "right" codes, and read the "right" codes right-to-left. Improvement (but not perfect): point the arrows on the right and below the grid right and down, respectively.

@ 2019-01-25 10:21 PM (#26492 - in reply to #26467) (#26492) Top

Administrator



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Administrator posted @ 2019-01-25 10:21 PM

* The Twopa disambiguation via shaded cells late in the solve were a bit of a pain. If you want to do it like this, at least ask for the same rows/columns in both grids, so it's easy to read off if you've solved the other way around? Or ideally just accept both combinations.

Valid point. If a solver ended up solving the other way around, answer keys for 1 go into 2, and answer keys for 2 go into 1. Of course, you would have to select the correct rows/columns. But that should not be a big constraint (we thought so). We had a discussion on this exact point before the contest and then decided to go ahead with the current approach. If it was an offline contest, there would be no issue but this adjustment was only because the contest is "online."

* The code order and direction on the right grids in the 4-by-4 types is confusing. Intuitively, I'd want to fill the "top" codes before the "right" codes, and read the "right" codes right-to-left. Improvement (but not perfect): point the arrows on the right and below the grid right and down, respectively.

If someone enters top code before right code (that is intuitive), it will still be marked correct (although it is not mentioned anywhere). We have emphasized left-to-right and top-to-bottom wherever possible. And the IB examples also illustrate that. We just wanted to stick to the "rows before columns" mentioned under the generic section ("If one row and one column is marked, enter the row first and then the column"). Your idea about the arrows' direction is also a good one, perhaps better than the current depiction. We did not want the arrow to point outside the grid, as that may have also introduced some confusion.

Thanks for the useful suggestions!
@ 2019-01-25 11:05 PM (#26493 - in reply to #26467) (#26493) Top

An LMI player



An LMI player posted @ 2019-01-25 11:05 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? Fillomino-Norinori Relay
 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


@ 2019-01-25 11:13 PM (#26494 - in reply to #26467) (#26494) Top

ghirsch



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ghirsch posted @ 2019-01-25 11:13 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? Linked Maxi 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? I have a different complaint


Regarding answer keys I think backward arrows are confusing.

I would also prefer if Twopa did not have shaded squares to force each solution to go in a specific grid, since that gives a potentially undesired break-in, and it makes it hard to plan answer drawing. I don't know if the scoring setup allows for multiple possible answers though.

I also don't like that the answer keys were separate for each grid, since if you guess to finish one piece of the puzzle I don't think you should be able to confirm that it's right until you finish the other grids.


Otherwise, I loved this contest though! I think connected puzzles are always really fun, and it's cool to see a full contest of them.


EDIT: Looks like rob already said a lot of the same things.

Edited by ghirsch 2019-01-25 11:14 PM
@ 2019-01-26 12:19 AM (#26495 - in reply to #26467) (#26495) Top

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Administrator posted @ 2019-01-26 12:19 AM

I also don't like that the answer keys were separate for each grid, since if you guess to finish one piece of the puzzle I don't think you should be able to confirm that it's right until you finish the other grids.

Your point may be valid. But we were very clear that we wanted to encourage partial points, especially for more beginner kind of solvers.
@ 2019-01-26 12:32 AM (#26496 - in reply to #26494) (#26496) Top

boing



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boing posted @ 2019-01-26 12:32 AM

ghirsch - 2019-01-26 11:13 AM
Regarding answer keys I think backward arrows are confusing.


Very! In some of the puzzles the answer key instructions made it clear that the reading order was still left-to-right and top-to-bottom but not in all, and I happened to start with Norinori which did not include those instructions so I lost points because of this. I hope admins will consider retroactively awarding points for backwards answers on those - I'm sure I'm not the only one!

EDIT: other than that this was great :D

Edited by boing 2019-01-26 12:33 AM
@ 2019-01-26 1:48 AM (#26497 - in reply to #26467) (#26497) Top

An LMI player



An LMI player posted @ 2019-01-26 1:48 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? Linked Minesweeper-Nanro
 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


Answer key arrrows poiinting left were slightly confusing.
@ 2019-01-26 4:37 AM (#26498 - in reply to #26467) (#26498) Top

Francwe



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Francwe posted @ 2019-01-26 4:37 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? Linked Skyscrapers-Easy as 123
 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


@ 2019-01-26 9:53 AM (#26499 - in reply to #26467) (#26499) Top

An LMI player



An LMI player posted @ 2019-01-26 9:53 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? Linked Skyscrapers-Easy as 123
 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


Mostly the same comments as ghirsch. I got tripped up by the left arrow in the norinori (like boing) and found the twopas confusing because of the one shaded cell.

In the twopa rules: "This means, in a multi-digit clue, some of the digits can have the same behavior, but not all," I would have liked the example puzzle to clarify whether a single-digit clue could have identical behaviour between two grids (I guessed not but couldn't solve the puzzle).

With partial marks I noticed one of my mistakes by submitting an incorrect subpart which you wouldn't usually be able to notice, so I felt like having separate answer keys was bad - perhaps you could still submit separate answer keys but only mark them individually at the end of the contest / when all other subgrids have also been submitted.

A very nice test though - the logic was nicer than I was expecting in the puzzles I did solve (especially the linked skyscrapers-easy as 123).

@ 2019-01-26 10:40 AM (#26500 - in reply to #26467) (#26500) Top

mstang




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mstang posted @ 2019-01-26 10:40 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? Fairly Nice
 Which set of puzzles did you like the most? Twopa
 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


I also got tripped up by some backwards arrows, and I couldn't finish the harder Linked Maxi Loop! Still, nice puzzles overall.

Personally, I think the Fillomino/Star Battle relay was worth (a lot) more than 2+2 points.

Edited by mstang 2019-01-26 10:48 AM
@ 2019-01-26 10:45 AM (#26501 - in reply to #26499) (#26501) Top

mstang




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mstang posted @ 2019-01-26 10:45 AM

@2 above:

Yes, the rules for Twopa as I would state them are: "for any pair of corresponding clues in the two grids, the arrangements of shaded/unshaded cells in the (usually 8) neighboring squares cannot be exactly the same." So that applies to single-digit clues equally well.

Edited by mstang 2019-01-26 10:47 AM
@ 2019-01-26 11:44 AM (#26502 - in reply to #26467) (#26502) Top

puzzler05



Posts: 7

Country : South Korea

puzzler05 posted @ 2019-01-26 11:44 AM

 What was your opinion of the distribution of easy/hard puzzles? Too many medium difficult puzzles
 What did you think about the puzzle quality of the test? Below Average
 Which set of puzzles did you like the most? Twopa
 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 too much or too little
 What was your opinion of the booklet formatting and printing? Just right


@ 2019-01-26 12:37 PM (#26503 - in reply to #26467) (#26503) Top

An LMI player



An LMI player posted @ 2019-01-26 12:37 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? Linked Maxi 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? I have a different complaint


Grid for Cave(17) was too thinly coloured
@ 2019-01-26 2:22 PM (#26504 - in reply to #26467) (#26504) Top

chaotic_iak




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chaotic_iak posted @ 2019-01-26 2:22 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? Fillomino-Norinori Relay
 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 interesting, novel theme. Many interesting uses of connected puzzles. I'm not sure if it fits for PR, but seeing the many easy puzzles I think it works well enough. Some problems:

- Connected puzzles should be considered as a single puzzle. Answer keys should span over the many grids, otherwise solvers can check partial work by submitting the answer for a grid, and if it's correct work from it for the other grids. Unless this is intentional.

- Some grids are (mostly) solvable without using the connected gimmick. Again, this might be intentional due to this being PR, but I see that as a downside.

But overall trying a new mechanic like this is interesting and I'd like to see more. Maybe variants like "liar" or something as a theme?

Edit: Apparently this echoes a lot of similar comments. Well.

Edited by chaotic_iak 2019-01-26 2:26 PM
@ 2019-01-26 4:10 PM (#26505 - in reply to #26467) (#26505) Top

JonaS2010



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JonaS2010 posted @ 2019-01-26 4:10 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? Linked Maxi Loop


For some reason I kept making mistakes, especially on the large Maxi Loops, which I printed out again. Still happy to have finished the round.

There were some great puzzles here, and I generally enjoy linked or relay puzzles. I hope this becomes a regular round in PR. Thanks Prasanna for the very enjoyable set!
@ 2019-01-26 4:48 PM (#26506 - in reply to #26505) (#26506) Top

Administrator



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Administrator posted @ 2019-01-26 4:48 PM

boing ->...I happened to start with Norinori which did not include those instructions so I lost points because of this. I hope admins will consider retroactively awarding points for backwards answers on those...

Yes
@ 2019-01-26 4:57 PM (#26507 - in reply to #26467) (#26507) Top

Administrator



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Administrator posted @ 2019-01-26 4:57 PM

An LMI PLayer -> In the twopa rules: "This means, in a multi-digit clue, some of the digits can have the same behavior, but not all," I would have liked the example puzzle to clarify whether a single-digit clue could have identical behaviour between two grids (I guessed not but couldn't solve the puzzle).


Instead of guessing you could have read the rules where it mentions "every clue must behave at least a little bit differently." and a single digit is also a clue. Ideally it should have been in the example too, but the forum was open for questions/clarifications
@ 2019-01-26 6:24 PM (#26508 - in reply to #26467) (#26508) Top

An LMI player



An LMI player posted @ 2019-01-26 6:24 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? Twopa
 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


@ 2019-01-26 6:50 PM (#26509 - in reply to #26467) (#26509) Top

TS279



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TS279 posted @ 2019-01-26 6:50 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? Shaded Cave-Kurotto Mastermind
 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


I have also been confused by the right-to-left arrows with the left-to-right key.

Nevertheless, these puzzles really gave me some kind of flow. Good job!
@ 2019-01-26 11:56 PM (#26510 - in reply to #26467) (#26510) Top

Badacoin



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Country : France

Badacoin posted @ 2019-01-26 11:56 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? Linked Maxi 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


Very enjoyable test, I really liked the way the connected logic was weaved into the puzzles.
@ 2019-01-27 6:54 AM (#26511 - in reply to #26467) (#26511) Top

WA1729




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WA1729 posted @ 2019-01-27 6:54 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? Linked Maxi 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


Thank you!

Favorite puzzles:

3-4 Twopa
11-12 Maxi Loop
@ 2019-01-27 1:11 PM (#26512 - in reply to #26467) (#26512) Top

ABcDexter



Posts: 47
2020
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ABcDexter posted @ 2019-01-27 1:11 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? Linked Maxi 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


@ 2019-01-27 2:16 PM (#26513 - in reply to #26467) (#26513) Top

anurag



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anurag posted @ 2019-01-27 2:16 PM

Dear Admin,
Twopa: I believe behaving differently is only limited to the fact that cells that are shaded may partially differ for the same clue between two grids. OR, do I also need to consider the shape of the shaded block?? As I see in the example, the shapes are identical! that's why I am a little unsure.

Also, just curious,
Ep 1 was PR201901.
'PR2019012' follows the same nomenclature? Or was it supposed to be PR201902?
@ 2019-01-27 3:23 PM (#26514 - in reply to #26513) (#26514) Top

Administrator



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Country : India

Administrator posted @ 2019-01-27 3:23 PM

anurag - 2019-01-27 2:16 PM

Twopa: I believe behaving differently is only limited to the fact that cells that are shaded may partially differ for the same clue between two grids. OR, do I also need to consider the shape of the shaded block?? As I see in the example, the shapes are identical! that's why I am a little unsure.

Cells that are shaded should partially differ. If you compare all eight cells surrounding a clue, at least one cell should differ in the shading between the two grids. Shape(s) may or may not be the same.

Also, just curious,
Ep 1 was PR201901.
'PR2019012' follows the same nomenclature? Or was it supposed to be PR201902?

You should have been able to figure this out. Nomenclature is PR2019XX where X denotes the month in which the test starts. If there are 2 PR tests in a month, the second test has a 2 appended.
@ 2019-01-27 3:38 PM (#26515 - in reply to #26467) (#26515) Top

TiiT



Posts: 139
10020
Country : Estonia

TiiT posted @ 2019-01-27 3:38 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? Linked Skyscrapers-Easy as 123
 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


@ 2019-01-27 3:45 PM (#26516 - in reply to #26467) (#26516) Top

Kithyane



Posts: 49
2020
Country : France

Kithyane posted @ 2019-01-27 3:45 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? Shaded Cave-Kurotto Mastermind
 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


Despite not being able to finish due to issues with my printer (small downside of being on holiday), I really enjoyed this test !

The "connected" logic was nicely used, at the right level for PR imho (thas is, it was necessary to finish all grids of a group, but used only a few times so that the flow of classic solving isn't broken).

Looking forward to see this category again next year :)
@ 2019-01-27 9:01 PM (#26517 - in reply to #26493) (#26517) Top

prezensky



Posts: 2

Country : Romania

prezensky posted @ 2019-01-27 9:01 PM

TWOPA 1 i send in the last seconds, and i arrieve 4 points.
Total 35 points minus penalties
Please chek

Best regards
Prezensky Istvan (Romania)
@ 2019-01-27 11:20 PM (#26518 - in reply to #26467) (#26518) Top

anurag



Posts: 136
10020
Country : India

anurag posted @ 2019-01-27 11:20 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? Fillomino-Star Battle Relay
 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


@ 2019-01-27 11:50 PM (#26519 - in reply to #26467) (#26519) Top

priyambhushan



Posts: 36
20
Country : India

priyambhushan posted @ 2019-01-27 11:50 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? Linked Maxi 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


@ 2019-01-28 1:13 AM (#26520 - in reply to #26467) (#26520) Top

An LMI player



An LMI player posted @ 2019-01-28 1:13 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? Linked Skyscrapers-Easy as 123
 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


@ 2019-01-28 2:46 AM (#26521 - in reply to #26467) (#26521) Top

detuned



Posts: 152
1002020
Country : United Kingdom

detuned posted @ 2019-01-28 2:46 AM

 What did you think about the puzzle quality of the test? Very nice
 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? Many puzzles were worth too much or too little
 What was your opinion of the booklet formatting and printing? Too few pages / too small grids


@ 2019-01-28 2:52 AM (#26522 - in reply to #26467) (#26522) Top

greenhorn



Posts: 164
100202020
Country : Slovakia

greenhorn posted @ 2019-01-28 2:52 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? Fillomino-Norinori Relay
 What was your opinion about the answer key extraction? Perfect answer keys
 What was your opinion of the booklet formatting and printing? Too few pages / too small grids


@ 2019-01-28 5:10 AM (#26523 - in reply to #26467) (#26523) Top

bob



Posts: 59
2020
Country : United States

bob posted @ 2019-01-28 5:10 AM

 What was your opinion of the distribution of easy/hard puzzles? Too many hard puzzles
 What did you think about the puzzle quality of the test? Average
 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 too much or too little
 What was your opinion of the booklet formatting and printing? Just right


Too complicated and frustrating for a timed test. Spent half my time on Maxi Loop 11 and 12 (which was favorite type out of the ones I tried) and checked and rechecked and rechecked and rechecked my answers. I either don't understand the rules or I don't understand the solution codes. Unsatisfying to say the least. Even after more time I still don't know what's wrong. I might be ready for a new hobby.
@ 2019-01-28 9:17 AM (#26525 - in reply to #26467) (#26525) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2019-01-28 9:17 AM

prezensky: Your solution was received 16 seconds after time was over. We have similar cases with many other participants too. And there are still other participants who do not submit once time is over, even if they finished just in time. So, to be fair to everyone, this submisson (1-Twopa) will not be awarded points.
@ 2019-01-28 9:19 AM (#26526 - in reply to #26467) (#26526) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2019-01-28 9:19 AM

Kind attention for Solvers


Please read the Instruction Booklet. Page 2 clearly mentions "Answer keys must always be entered from left to right and top to bottom"

@ 2019-01-28 9:35 AM (#26527 - in reply to #26467) (#26527) Top

amitsowani




Posts: 349
1001001002020
Country : India

amitsowani posted @ 2019-01-28 9:35 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? Linked Maxi 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? I have a different complaint


Overall the test went very smoothly. But I got tripped on the "slighly" different rul of Twopa and wasted 15 mins on the first one and had to come back and solve it later.

Answer Keys were mostly perfect but the arrows pointing from the right/ bottom were confusing and I was not sure whether to enter left to right or right to left.

The size of the instructions impacted the puzzle grid size in a few cases. One possibility could have been to ask participants to refer to the instruction booklet
@ 2019-01-28 9:32 PM (#26528 - in reply to #26467) (#26528) Top

randomperson1729



Posts: 10

Country : United States

randomperson1729 posted @ 2019-01-28 9:32 PM

Hello! First-time participant here!
How do we fill out those questionnaires for feedback on the puzzles? I can't seem to find any links to them.
@ 2019-01-29 4:08 AM (#26529 - in reply to #26467) (#26529) Top

harmeet



Posts: 85
20202020
Country : India

harmeet posted @ 2019-01-29 4:08 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? Linked Maxi 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


@ 2019-01-29 9:50 AM (#26530 - in reply to #26467) (#26530) Top

kishy72



Posts: 417
100100100100
Country : India

kishy72 posted @ 2019-01-29 9:50 AM

 What was your opinion of the distribution of easy/hard puzzles? Too many hard puzzles
 What did you think about the puzzle quality of the test? Average
 Which set of puzzles did you like the most? Linked Skyscrapers-Easy as 123
 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? Many puzzles were worth too much or too little
 What was your opinion of the booklet formatting and printing? Just right


I felt the contest was on the harder side.Being a new round in PR, I would have preferred somewhat easier puzzles.I did my first submission at 26 mins having started with the first puzzle of the contest (Twopa) which went nowhere no matter what I did and had to drop and move on.Point distribution was certainly off for that puzzle and for Fillomino & Star Battle as well wherein I spent a considerable time.
Regarding the Twopa, my opinion is that the added shaded cell made the solve much more complex as now you have to determine which pattern fits exactly where.I would have preferred a loose start wherein you can shade some cells and shade the opposite in the other and then figure out.
I enjoyed solving Sky/Easy as ABC and Maxi loop puzzles (which were accurate in depicting the difficulty level by means of points).
Overall an okay contest where I couldn't enjoy puzzles much because of the difficulty(was depressing at the start itself).
@ 2019-01-29 10:57 AM (#26531 - in reply to #26467) (#26531) Top

swaroop2011




Posts: 668
500100202020
Country : India

swaroop2011 posted @ 2019-01-29 10:57 AM

 What was your opinion of the distribution of easy/hard puzzles? Too many medium difficult puzzles
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Linked Maxi 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? Many puzzles were worth too much or too little
 What was your opinion of the booklet formatting and printing? Just right


Nice concept and excellent Puzzles.
As others have already mentioned, answer keys pointing right to left were confusing.
The difficulty was definitely on higher side compared to previous tests. The first twopa and also star battle one were definitely worth more points.
I indeed ended up making mistake in Twopa and needed 1 extra minute to finish all puzzles.
Nonetheless very fun contest.
Thanks Prasanna and LMI.
@ 2019-01-30 4:11 AM (#26532 - in reply to #26467) (#26532) Top

GaS



Posts: 24
20
Country : ITALY

GaS posted @ 2019-01-30 4:11 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? Fairly Nice
 Which set of puzzles did you like the most? Twopa
 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? Too few pages / too small grids


@ 2019-01-30 2:07 PM (#26533 - in reply to #26467) (#26533) Top

kiwijam



Posts: 182
10020202020
Country : New Zealand

kiwijam posted @ 2019-01-30 2:07 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? Linked Maxi 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


Puzzles were great!
I also had issues with the answer key arrows pointing the wrong way.

Also in the Twopas, this new shaded cell approach is a problem for answer entering. We have to guess early anyway, and solve on both grids like a normal Twopa, ignoring the shaded cell until we work out which grid it is part of. In my case my solutions ended up on the wrong side, and then I got confused (needed 5 submissions, my own fault). At least you could have made A and C the same row?
@ 2019-01-30 4:56 PM (#26534 - in reply to #26528) (#26534) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2019-01-30 4:56 PM

randomperson1729 - 2019-01-28 9:32 PM

Hello! First-time participant here!
How do we fill out those questionnaires for feedback on the puzzles? I can't seem to find any links to them.

There will be a link from the score page.
@ 2019-01-30 5:57 PM (#26535 - in reply to #26467) (#26535) Top

vopani



Posts: 739
50010010020
Country : India

vopani posted @ 2019-01-30 5:57 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? Linked Maxi 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? Many puzzles were worth too much or too little
 What was your opinion of the booklet formatting and printing? Too few pages / too small grids


Clean set of puzzles. Enjoyed it.

While the puzzle difficulty is good for a PR, just the new theme might make it a bit hard and unusual for the newcomers.

Felt the StarBattle was undervalued and the shaded cell in Twopa was just inconvenient. Some of the grids were quite small, I don't think competitors will have a problem printing more pages for larger grids.

Favourite puzzles: Maxi Loop, Minesweeper-Nanro, Fillomino-NoriNori
Thanks Prasanna!

@ 2019-01-30 11:52 PM (#26536 - in reply to #26467) (#26536) Top

SN Sam



Posts: 2

Country : India

SN Sam posted @ 2019-01-30 11:52 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? Fillomino-Star Battle Relay
 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


@ 2019-01-31 12:13 AM (#26537 - in reply to #26467) (#26537) Top

Elyot



Posts: 4

Country : Canada

Elyot posted @ 2019-01-31 12:13 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? Shaded Cave-Kurotto Mastermind
 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


A lot of the puzzles seemed very suscepible to guessing, e.g. fillomino-starbattle or some parts of the skyscrapers, because you could finish 95% of the first puzzle, and then guess instead of relying on the second puzzle to disambiguate between two final bits of the solution. Not sure how I feel about this.
@ 2019-01-31 12:31 AM (#26538 - in reply to #26467) (#26538) Top

Grizix



Posts: 30
20
Country : France

Grizix posted @ 2019-01-31 12:31 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? Fairly Nice
 Which set of puzzles did you like the most? Linked Skyscrapers-Easy as 123
 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? Many puzzles were worth too much or too little
 What was your opinion of the booklet formatting and printing? Just right


@ 2019-01-31 9:10 AM (#26539 - in reply to #26467) (#26539) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2019-01-31 9:10 AM

Congratulations to Endo Ken, Hideaki Jo and Nikola Zivanovic for taking the top three places.

Amongst Indian participants, Congratulations to Rohan Rao, Amit Sowani and Swaroop Guggilam for taking the top 3 places. Rohan and Amit were the only ones to complete all puzzles.

Of the 188 participants, 28 each were from USA and Japan, and 21 from India. Ganghyun Lee (South Korea) was the first to start the test while Akansha Kansal (India) was the last person to start the test. 40 participants completed the set within the allotted time. The median score of the test was 64.

Thanks Prasanna Seshadri for the puzzles!

Thanks to the participants who have shared feedback so far. Participants may share feedback on the results page and rate the puzzles on the contest page.

A general suggestion to the participants is to READ the Instructions Booklet (especially the answer keys) before attempting the test. Backward arrows were very much there in the IB (and the answers keys were indeed left to right or top to bottom) and there were no questions or concerns raised before the test. Points have still been awarded (penalties have been removed) for all participants who entered the answer keys in the other direction.
@ 2019-02-03 1:14 PM (#26541 - in reply to #26467) (#26541) Top

chaotic_iak




Posts: 241
1001002020
Country : Indonesia

chaotic_iak posted @ 2019-02-03 1:14 PM

I see this point has not been raised. I recommend for future Twopa puzzles (by all authors), put down a better instruction: "for each clue, at least one cell around it is different (shaded in one puzzle and unshaded in the other)", instead of the very vague "must behave slightly differently".
@ 2019-02-06 9:44 PM (#26545 - in reply to #26467) (#26545) Top

vjain9



Posts: 44
2020
Country : India

vjain9 posted @ 2019-02-06 9:44 PM

Link to the solution booklet please ?
@ 2019-02-19 8:20 AM (#26649 - in reply to #26467) (#26649) Top

randomperson1729



Posts: 10

Country : United States

randomperson1729 posted @ 2019-02-19 8:20 AM

 What was your opinion of the distribution of easy/hard puzzles? Too many hard puzzles
 What did you think about the puzzle quality of the test? Fairly Nice
 Which set of puzzles did you like the most? Linked Minesweeper-Nanro
 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? Many puzzles were worth too much or too little
 What was your opinion of the booklet formatting and printing? Just right


@ 2019-02-21 6:40 PM (#26663 - in reply to #26467) (#26663) Top

prasanna16391



Posts: 1775
1000500100100202020
Country : India

prasanna16391 posted @ 2019-02-21 6:40 PM

Might be a bit late to add my thoughts here but I thought a week in that it might be better bringing it up again when PR comes back around. Thank you to everyone for all your feedback. I think the general tone has been somewhere between liking the new theme and the consideration that it might be too hard for PR.

The reason I am bringing this up is it is relevant to how we see PR in general. I think that it is meant to be a gateway contest series for Indian beginners to prepare for the Indian Championship and eventually the World Championship. This means it needs to give solvers a level of basic preparation for higher levels while also providing approachable levels of difficulty.

There are exceptions but I think overall the results show that the difficulty was definitely at an approachable level for beginners. This does not necessarily mean beginners should finish the contest, but that everyone should have at least some puzzles to realistically attempt in their contest period and I think that was achieved here.

So I'd like to add beyond that that at the higher levels, there aren't always rounds you are comfortable with. I personally think experimenting for 1-2 rounds during the online segment is a very good thing to do to showcase the different things that can be done at those levels - if anything it is a very safe space to learn new things because solvers can discard a round or two in terms of results. I think for someone getting into puzzle contests, 4-5 rounds of optimum performance and 1-2 rounds of learning new things is a good balance to have.

This is all to say that in my opinion at least we should continue having 1-2 rounds that push the envelope a bit - someone suggested Liar puzzles, which sounds like a cool idea to do as well for instance :)

Once again, thanks to everyone for the feedback. All the best for the remainder of the series!
@ 2019-02-21 7:01 PM (#26664 - in reply to #26467) (#26664) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2019-02-21 7:01 PM