Puzzle Round 8 - Night and Day
prasanna16391
Subject: Puzzle Round 8 - Night and Day @ 2021-11-13 1:22 AM (#29768) (#29768)Quote Reply Top


2021 World Sudoku+Puzzle Convention Organizer

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Location: India
This is a round-specific thread created to allow restricted discussions between participants who have completed the round.

For general discussions, it is recommended to continue using the 5 main discussion threads stuck to the top here - https://logicmastersindia.com/forum/forums/forum-view.asp?fid=62
WTM
Subject: Re: Puzzle Round 8 - Night and Day @ 2021-11-20 5:22 PM (#30042 - in reply to #29768) (#30042)Quote Reply Top




Posts: 3

Location: Czech Republic
I believe that the fifth puzzle, Tapa Like Loop, has four solutions and I don't see any reason why any of the solutions could be incorrect. While I was solving, I went with my gut and entered the solution that seemed most likely, and I got my points. But there are two places where the loops may or may not cross (first column, 5/6th row and last row, 7/8th column), and I don't believe the rules prohibit the crossing in any way.

I don't know whether the organizers already know about this, or if I made a mistake somewhere, but if the puzzle really has multiple solutions, it would be better to give a disclaimer or something.
Administrator
Subject: Re: Puzzle Round 8 - Night and Day @ 2021-11-20 6:13 PM (#30043 - in reply to #29768) (#30043)Quote Reply Top


200010001001001002020
Location: India
We are aware of this. We added both the possible answer keys that come from it, and we aren't giving a disclaimer because it is the main competition and we want everyone to approach it with the same knowledge base.

The WPC policy on non-unique puzzles is consistently applied here.
Para
Subject: Re: Puzzle Round 8 - Night and Day @ 2021-11-20 7:27 PM (#30045 - in reply to #29768) (#30045)Quote Reply Top




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Location: Netherlands
I feel it's a bit of a lapse to not have included the general Night and Day rules in the puzzle booklet. It currently doesn't really state anywhere in the puzzle booklet that different loops can only cross when they visit the same cells.
tamz29
Subject: Re: Puzzle Round 8 - Night and Day @ 2021-11-20 8:27 PM (#30049 - in reply to #30045) (#30049)Quote Reply Top




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Location: Thailand
Para - 2021-11-20 7:27 PM

I feel it's a bit of a lapse to not have included the general Night and Day rules in the puzzle booklet. It currently doesn't really state anywhere in the puzzle booklet that different loops can only cross when they visit the same cells.


We agree that it would have been helpful to include the beginning paragraph into the PB. Sorry for not thinking this through enough.
craigkasper
Subject: Re: Puzzle Round 8 - Night and Day @ 2021-11-21 7:35 PM (#30067 - in reply to #29768) (#30067)Quote Reply Top


Typed Logic Author

Posts: 4

Location: Canada
(Now that I've been identified as the author of this round: My apologies for the issue with puzzle five. (I hope those of you who encountered the error enjoyed the round in spite of this,)
sstackho
Subject: Re: Puzzle Round 8 - Night and Day @ 2021-12-01 4:41 AM (#30103 - in reply to #29768) (#30103)Quote Reply Top




Posts: 17

Location: Canada
Craig: I really enjoyed this round of puzzles - even though I had to restart a few of them several times until I could break out of old single-loop-puzzle habits. Really fun and unique to solve. Thanks!