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Melon's Puzzle Zoo - LMI February'11 Puzzle Test32 posts • Page 1 of 2 • 1 2
@ 2011-02-15 8:47 AM (#3518 - in reply to #3491) (#3518) Top

Administrator



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Administrator posted @ 2011-02-15 8:47 AM

Puzzle Types in this test will be unique kind of puzzles that regularly appear in Melon's blog. Check the IB for details.
There are some new variants as well which never appeared in his blog.
@ 2011-02-15 8:52 AM (#3519 - in reply to #3491) (#3519) Top

Administrator



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Country : India

Administrator posted @ 2011-02-15 8:52 AM

Also, in his blog, Palmer has been posting more practice materials. You may also get a tip or two regarding puzzle difficulty level as well.
Here is the link - http://mellowmelon.wordpress.com/2011/02/12/puzzle-zoo-instructions

Thanks Palmer for the practice materials and references. I'm sure it will be very helpful for players who don't frequent your blog, and also for the new variants.
@ 2011-02-15 11:55 PM (#3526 - in reply to #3491) (#3526) Top

ksun48



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ksun48 posted @ 2011-02-15 11:55 PM

??

Edited by ksun48 2011-02-16 12:00 AM
@ 2011-02-16 12:00 AM (#3527 - in reply to #3491) (#3527) Top

ksun48



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ksun48 posted @ 2011-02-16 12:00 AM

At http://logicmastersindia.com , the main page, it says Lemon's Puzzle Zoo. Is this a typo, or has MellowMelon changed to YellowLemon?
@ 2011-02-16 5:34 AM (#3528 - in reply to #3527) (#3528) Top

Administrator



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Country : India

Administrator posted @ 2011-02-16 5:34 AM

ksun48 - 2011-02-16 12:00 AM

At http://logicmastersindia.com , the main page, it says Lemon's Puzzle Zoo. Is this a typo, or has MellowMelon changed to YellowLemon?

Bad typo. Fixed.
@ 2011-02-23 6:19 PM (#3580 - in reply to #3528) (#3580) Top

debmohanty




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Country : India

debmohanty posted @ 2011-02-23 6:19 PM

MellowMelon has been posting some very useful practice puzzles in his blog.
Today's Yajilin / Akari is super nice.
@ 2011-02-25 6:15 AM (#3589 - in reply to #3580) (#3589) Top

Administrator



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Country : India

Administrator posted @ 2011-02-25 6:15 AM

The password protected puzzle booklet is uploaded.
It has 12 puzzle pages ( 1 page per puzzle type ) + 1 cover page having points table.
The booklet has instructions and solved example for each puzzle as well.
@ 2011-02-26 5:34 AM (#3591 - in reply to #3589) (#3591) Top

Administrator



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Country : India

Administrator posted @ 2011-02-26 5:34 AM

You can now start visiting the Zoo!
@ 2011-02-26 9:04 AM (#3592 - in reply to #3491) (#3592) Top

Administrator



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Country : India

Administrator posted @ 2011-02-26 9:04 AM

Those who have completed the test can view their score at the score page
@ 2011-02-27 5:43 AM (#3595 - in reply to #3491) (#3595) Top

Para



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Para posted @ 2011-02-27 5:43 AM

Tricky set, but fun. Especially liked the Yajilin/Akari Hybrid (even though I really don't like Akari puzzles). The Adult nonconsecutive fillomino was clever, except I couldn't get it out in time. Almost forgot to submit 2 answers while working on that one. Two silly counting mistakes again. Will get past those at one point. Let's just say those wouldn't cost me in paper competitions.
Will finish the rest some other time.
@ 2011-02-27 6:25 AM (#3596 - in reply to #3491) (#3596) Top

PuzzleScott



Posts: 42
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Country : United States

PuzzleScott posted @ 2011-02-27 6:25 AM

Where is the password, please? I've started, but it doesn't show me the password for the puzzle booklet.
@ 2011-02-27 8:11 AM (#3597 - in reply to #3596) (#3597) Top

Para



Posts: 315
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Para posted @ 2011-02-27 8:11 AM

It should appear under the start button after you have clicked start the test,.
@ 2011-02-27 8:29 AM (#3598 - in reply to #3597) (#3598) Top

PuzzleScott



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PuzzleScott posted @ 2011-02-27 8:29 AM

Found the PW, thanks. I was expecting it after the first of 2 clicks required to start. Nice test!
@ 2011-02-27 9:02 AM (#3599 - in reply to #3491) (#3599) Top

DreamRose311



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DreamRose311 posted @ 2011-02-27 9:02 AM

I started the time and tried to open the PDF but it won't open, it gives me an error message
@ 2011-02-27 9:16 AM (#3600 - in reply to #3599) (#3600) Top

Administrator



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Country : India

Administrator posted @ 2011-02-27 9:16 AM

DreamRose311 - 2011-02-27 9:02 AM

I started the time and tried to open the PDF but it won't open, it gives me an error message

Are you getting error while opening the pdf?
@ 2011-02-27 9:17 AM (#3601 - in reply to #3600) (#3601) Top

Administrator



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Country : India

Administrator posted @ 2011-02-27 9:17 AM

Administrator - 2011-02-27 9:16 AM

DreamRose311 - 2011-02-27 9:02 AM

I started the time and tried to open the PDF but it won't open, it gives me an error message

Are you getting error while opening the pdf?

Please copy the password properly. Right click on the password and Copy
@ 2011-02-27 9:28 AM (#3602 - in reply to #3491) (#3602) Top

DreamRose311



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DreamRose311 posted @ 2011-02-27 9:28 AM

I get an error when I open it before I can put a password in at all, and it doesn't even give me the usual place to put the password at all
@ 2011-02-27 9:32 AM (#3603 - in reply to #3602) (#3603) Top

Administrator



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Country : India

Administrator posted @ 2011-02-27 9:32 AM

DreamRose311 - 2011-02-27 9:28 AM

I get an error when I open it before I can put a password in at all, and it doesn't even give me the usual place to put the password at all

Looks like the pdf is not downloaded properly. Sent you a PM. Please check.
@ 2011-02-27 11:00 AM (#3604 - in reply to #3491) (#3604) Top

thesubro



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thesubro posted @ 2011-02-27 11:00 AM

Mellow Melon is da man! Great puzzles. I will be hitting myself for a long time for a typo in one answer and finishing another 60 pointer 2 seconds too late. Ugh! Great solid puzzles.
The Subro
@ 2011-02-27 11:18 AM (#3605 - in reply to #3491) (#3605) Top

bartunio



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Country : Poland

bartunio posted @ 2011-02-27 11:18 AM

Great puzzles, thanks!


Edited by bartunio 2011-02-27 11:20 AM
@ 2011-02-27 4:52 PM (#3611 - in reply to #3491) (#3611) Top

StGeorge



Posts: 11

Country : Bulgaria

StGeorge posted @ 2011-02-27 4:52 PM

Great puzzles. I didn't do great but I had a lot of fun. One stupid mistake when extracting the answer of the Baby Fillomino - I put it down to bad handwriting. I also skipped the Adult Nurikabe after solving about half of it and then realised I had the whole B-column solved, so I wrote some semi-random numbers for column A in the last minute... no luck :D

Oh, and the Yaijilin/Akari puzzle was a great surprise. The Adult Filomino was a bit fiddly but I suppose that's why it was worth so much.

I hope to see another MellowMelon Test in the future :)
@ 2011-02-27 8:59 PM (#3612 - in reply to #3611) (#3612) Top

Nikola



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Nikola posted @ 2011-02-27 8:59 PM

Before the start of this test I was very skeptical because I thought it would be boring test, but now I can say that I was wrong. I've never rate so many 10's. Thanks to the author and the organizers!

Nikola
@ 2011-02-28 5:37 AM (#3613 - in reply to #3491) (#3613) Top

MellowMelon



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MellowMelon posted @ 2011-02-28 5:37 AM

The test has now ended. Full results here of course. Congratulations to Psyho (780), nyuta (710), and uvo (630) for being the top three finishers. Additional props to Psyho for being the only one to correctly solve the Akari EX Adult, although someone else was just a minor mistake away.

As the scores indicate, this test ended up being substantially harder than intended, and I am sorry for this. Here's an excerpt of a preliminary post mortem that's now been posted on my blog, which explains what went wrong from my perspective.

Some thoughts on the test from my angle, coming from shortly after it is over and before seeing other comments: All in all, a lot like my first WPC performance. Passable and with its high points, but my inexperience clearly showed through in other areas.

Probably very few will disagree when I say I think it was too hard, both for casual solvers and for those gunning for top spots. This is pretty clear from the fact that the top scorer finished 16 out of 20 puzzles, whereas most LMI tests are intended be finished by top contestants at least a few minutes early. Mine too, key word being intended in this case. I do realize that such an unexpected level of difficulty can really throw people off, especially for people used to finishing or at least getting close, so I apologize for this. It was not my goal to have no one come even close to a perfect score.

Suffice it to say this was mostly my fault. There were two rounds of testsolving, but in both cases the drafts sent out were way over the top, and I was probably a bit too stubborn about making the babies easy enough or eliminating some of the more ridiculous steps in the adults in both revising phases. The final version is one in which motris, one of the three testers, would have probably finished with a little time to spare --- it's hard to say exactly because you can't get genuine times from tweaked puzzles if the original was already done. This apparently was not an optimal standard to match up with, perhaps because motris is on fire these days and he's also more familiar with my kinds of puzzles than a typical world-class competitor.

Also, I think the testsolver reports were the first time in these 1+ years that I ever heard how long someone else took to do a puzzle of mine, since previously I had only heard qualitative descriptions. So seeing their times was a slap in the face that I failed to completely react to.

Yet another thing that I probably did not give due consideration was the types themselves. There were no classic types on the test, and many of them were far from ordinary. The preview series probably alleviated that at least a bit, but of course not everyone would have had time to work through it all.


Any comments/advice/suggestions, whether related to the difficulty or not, are welcome. I hope you enjoyed the test, even if it was a killer.
@ 2011-02-28 7:48 AM (#3614 - in reply to #3613) (#3614) Top

willwc



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Country : United States

willwc posted @ 2011-02-28 7:48 AM

First off, I want to say that I found the puzzles to be very enjoyable as a whole. While I haven't been a long-time visitor to your blog, I would say I have seen enough that I came in with an expectation that this was not going to be an easy test due to your construction style and my general unfamiliarity with many of the puzzle types, so perhaps that is why I was not startled to find a few puzzles that were certainly on the difficult side. Additionally, I have no qualms with a test where the top solver completes 80% of the test correctly--while I prefer finishing the test, I don't feel that it takes away from my enjoyment any if I don't, as long it's not in situations where progress is blocked by an individual puzzle (i.e. contests that depend on relaying answers from one puzzle to the next). As one of the few people that has rated the puzzles, you (presumably) can already see my opinions on most of them, but I felt that the Castle Wall Adult, Liar Slitherlink Adult, Nonconsecutive Fillomino Adult, Nurikabe/Fillomino, and Akari EX Baby puzzles were all excellent puzzles. (As a side note, I very much prefer the notation you used on the test for the Akari EX puzzles--the yellow and green text are difficult for me to differentiate in your other blog puzzles.)

While I certainly won't pretend that I speak for everyone on this, my only complaint regarding the difficulty level would be that it is very important in this test structure (with largely non-traditional types) to make sure that the Baby puzzles are easy enough to attract solvers to get through them and, if they have time, decide which Adult puzzles are most comfortable/enjoyable to focus their remaining time on. As I'm sure you've seen by now, I think the Liar Slitherlink was the biggest culprit here--I still have not found a good break-in for the Baby puzzle, and during the test I skipped the type entirely after getting nowhere with the Baby, missing out on what I found to be a more accessible (and wonderfully constructed) puzzle in the Adult version. Given that only 13 solvers submitted a solution to the Baby version, I have a feeling I'm not the only one who felt that way. As for the difficulty of the Adult versions and the hybrids, I'm a bit more lenient since they are noted as more difficult puzzles. There are three of those I still haven't completed, and while I think you'd agree based on the solving numbers the Akari EX might've been a bit over the top in difficulty, the other two (the Double Back and Double Back/Country Road hybrid) I think are just due to being a puzzle type that I'm not so great at, so I really don't have any criticism there.

While I think you'll come along to the difficulty calibration naturally, particularly if you can find a way to solicit solving times from sources you trust for some of your blog puzzles, I do have one suggestion that was touched on in your post mortem for any future online contests that you run: Answer entry needs to be consistent throughout the test, and generally as easy for the solver to determine as possible. One issue is avoiding the case of similar-looking entry mechanisms that act differently between puzzles (ex. Castle Wall/Double Back, although the LMI interface prevents this from being a serious issue due to its input checking), and the other (in my counting-challenged opinion) is avoiding mechanisms that require lots of counting, especially in situations where the puzzle grid can be cluttered. International Borders seems to be the case of this we both agree on, even though I made up my own answer key for it during the test. :) I do appreciate credit being given for both of those entries, whether it was by you or another administrator, as I did not expect it once I realized what had happened after the test.

(For the sake of full openness, neither of my other two submitted errors were due to answer entry issues--both solutions were incorrect on paper well before they made it to the LMI database.)

Overall, though, I greatly enjoyed the test, and want to be clear in my belief that it is not an effort that in any way necessitates an apology. In particular, I feel like the hybrids section offers a lot of potential to come up with some creative and fun types for the future that might make the test seem more accessible to solvers, as it is (potentially) easier to attract people to puzzles that combine the rules of two more familiar puzzle types than to learn the rules to entirely new puzzles. I've done a little messing around with constructing some similar ideas of my own privately, and if I ever can get myself into a consistent rhythm to have time to construct I'll try to share those publicly to hopefully explore that space a little bit as well. To digress from that point, though, I thought the work that went into the test was great (especially as a first effort in the contest world) and it was well worth the time spent to get myself somewhat up to speed on the puzzle types that were unfamiliar to me. Really hope to see more in the future.
@ 2011-02-28 9:09 AM (#3615 - in reply to #3614) (#3615) Top

debmohanty




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debmohanty posted @ 2011-02-28 9:09 AM

Thanks willwc for a great summary from a participant's point of view. I could not agree more.
If I were to repeat, slightly easier version of the baby puzzles would have been more accessible to solvers in general since most of the puzzle types are non-traditional.

Apart from the difficulty of puzzles, all the puzzles were nicely constructed, aesthetically and logically.
Those who've not yet checked out, please have a look at the Solution Booklet at Melon's blog, which also lists some of the break-ins for each of the puzzle.
Melon's Puzzle Zoo - LMI February'11 Puzzle Test32 posts • Page 1 of 2 • 1 2
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