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Twist - LMI April'11 Puzzle Test on 9th/10th64 posts • Page 1 of 3 • 1 2 3
Feedback about "points reduction" scoring system
How do you feel about the new "points reduction" scoring system?
(Please post specific and additional feedback in forum)
OptionResults
Like It : It can be used in future tests after minor adjustments.13 Votes - [76.47%]
Don't like : It is too complicated and should not be used in future3 Votes - [17.65%]
Don't care : I'm here just to solve puzzles1 Votes - [5.88%]
View Results

@ 2011-04-06 2:46 PM (#3939 - in reply to #3910) (#3939) Top

debmohanty




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Country : India

debmohanty posted @ 2011-04-06 2:46 PM

Just to make sure that everyone understands the point reduction formula, here is an example.
Basically, 'how much you get for a particular puzzle' depends upon 'when you submitted it'. Nothing else.



@ 2011-04-08 9:52 AM (#3947 - in reply to #3910) (#3947) Top

kiwijam



Posts: 181
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Country : New Zealand

kiwijam posted @ 2011-04-08 9:52 AM

In the answer for the Minesweeper puzzle, there is a mine next to the 4 (left end of second row) that has 3 mines around it. Is this allowed?
@ 2011-04-08 10:12 AM (#3949 - in reply to #3947) (#3949) Top

debmohanty




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Country : India

debmohanty posted @ 2011-04-08 10:12 AM

You are referring to R2C1. Yes, that is allowed.



The following situation is NOT allowed because of R2C3.



Cells with numbers will have exactly same number of mines around them.
Cells with mines may have any number of mines around them

Cells without numbers and mines can NOT have 3 mines around them. [This is the only rule change wrt a standard Minesweeper puzzle ]
@ 2011-04-08 10:17 AM (#3950 - in reply to #3910) (#3950) Top

kiwijam



Posts: 181
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Country : New Zealand

kiwijam posted @ 2011-04-08 10:17 AM

Ah thank you. I thought it meant:
(Cells without numbers) and mines can NOT have 3 mines around them
instead of:
Cells without (numbers and mines) can NOT have 3 mines around them

Looking forward to trying these twists. The hitori sum is my favourite new idea, normally the numbers just get ignored.
@ 2011-04-08 10:24 AM (#3951 - in reply to #3950) (#3951) Top

debmohanty




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Country : India

debmohanty posted @ 2011-04-08 10:24 AM

During IB review itself, we found that the wording is little cryptic. So I included the example such that all the scenarios are reflected.

Hope it is clear to all.
@ 2011-04-08 9:44 PM (#3952 - in reply to #3950) (#3952) Top

brianklimek



Posts: 14

Country : United States

brianklimek posted @ 2011-04-08 9:44 PM

Ah, glad this was addressed, I just logged on to check on the same thing, and I had misinterpretted the instructions the same way. Thanks.
I look forward to this one. Thanks again to the organizers and creators!
@ 2011-04-08 10:29 PM (#3953 - in reply to #3910) (#3953) Top

Administrator



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Country : India

Administrator posted @ 2011-04-08 10:29 PM

Puzzle Booklet uploaded. It has 12 pages, each page has 2 puzzles (and instructions and solution to the example) of one particular type.
There is no cover page.
@ 2011-04-09 5:33 AM (#3954 - in reply to #3910) (#3954) Top

debmohanty




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Country : India

debmohanty posted @ 2011-04-09 5:33 AM

Twist has started.
Good luck everyone!
@ 2011-04-09 10:45 AM (#3955 - in reply to #3954) (#3955) Top

motris



Posts: 199
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Country : United States

motris posted @ 2011-04-09 10:45 AM

Wow! Phenomenal test with a nice balance of difficulties and many fun puzzles on both ends of the spectrum. The twists were very interesting, and you even managed to make Hitori fun! You don't know how much that means to me. Thanks a lot Deb.
@ 2011-04-09 10:50 AM (#3956 - in reply to #3910) (#3956) Top

debmohanty




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Country : India

debmohanty posted @ 2011-04-09 10:50 AM

The score page doesn't show the bonus properly. Will be uploading fixed score page in few minutes
@ 2011-04-09 11:00 AM (#3957 - in reply to #3956) (#3957) Top

debmohanty




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Country : India

debmohanty posted @ 2011-04-09 11:00 AM

debmohanty - 2011-04-09 10:50 AM

The score page doesn't show the bonus properly. Will be uploading fixed score page in few minutes


Bonus should show up properly now - here is the link to score page - http://logicmastersindia.com/M201104P/score.asp - which you can view after you complete the test.

A twisted view of the score page available here - http://logicmastersindia.com/M201104P/score.asp?view=twist
@ 2011-04-09 11:40 AM (#3958 - in reply to #3955) (#3958) Top

debmohanty




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Country : India

debmohanty posted @ 2011-04-09 11:40 AM

motris - 2011-04-09 10:45 AM

Wow! Phenomenal test with a nice balance of difficulties and many fun puzzles on both ends of the spectrum. The twists were very interesting, and you even managed to make Hitori fun! You don't know how much that means to me. Thanks a lot Deb.

Thanks a lot for the feedback.
Yes, Hitori is a type that is not liked by all. I'm glad that the 2 Hitoris came out well and you liked them.
@ 2011-04-09 1:24 PM (#3961 - in reply to #3910) (#3961) Top

Para



Posts: 315
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Para posted @ 2011-04-09 1:24 PM

Thanks for the test. I had fun. My favourite was the ABC twist, really good puzzles both. And I managed to avoid making any entry errors, although I did take a very cautious approach entering my answer keys this time, probably cost me some time as I doublechecked what I had put in each time.
@ 2011-04-09 1:26 PM (#3962 - in reply to #3939) (#3962) Top

anurag



Posts: 136
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Country : India

anurag posted @ 2011-04-09 1:26 PM

thats a nice clarification.before looking at this post,i was surprised about the reduction as i thought it was calculated on the total score.This logic i think should be posted on the contest page too,to ensure no one is in doubt.
@ 2011-04-09 1:38 PM (#3963 - in reply to #3962) (#3963) Top

debmohanty




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Country : India

debmohanty posted @ 2011-04-09 1:38 PM

anurag - 2011-04-09 1:26 PM

thats a nice clarification.before looking at this post,i was surprised about the reduction as i thought it was calculated on the total score.This logic i think should be posted on the contest page too,to ensure no one is in doubt.


We've experimented with many bonus systems, not all of them are flawless - but we'll never have a bonus system where players need calculators (more than pencil and eraser) before submitting a puzzle.
@ 2011-04-09 1:46 PM (#3964 - in reply to #3963) (#3964) Top

anurag



Posts: 136
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Country : India

anurag posted @ 2011-04-09 1:46 PM

that sounded funny.i didnt say the contestants would start calculating.in fact i liked this penalty(bonus)system:) Good and simple one.
To make it better,why not increase the number of intervals and make it 6 ,of 5 mins each.That can probably sharpen the evaluation.
@ 2011-04-09 1:54 PM (#3965 - in reply to #3964) (#3965) Top

debmohanty




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Country : India

debmohanty posted @ 2011-04-09 1:54 PM

anurag - 2011-04-09 1:46 PM

that sounded funny.i didnt say the contestants would start calculating.in fact i liked this penalty(bonus)system:) Good and simple one.
To make it better,why not increase the number of intervals and make it 6 ,of 5 mins each.That can probably sharpen the evaluation.


Changing the interval to 5 minutes is an option. But it might become too stressful for players in last 30 minutes.
As the poll options indicate, we definitely can make adjustments to this system in future.

@ 2011-04-09 2:17 PM (#3966 - in reply to #3965) (#3966) Top

rakesh_rai




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rakesh_rai posted @ 2011-04-09 2:17 PM

Nice twists. I liked L&M&I, Lights and Hitori Sum the most.
@ 2011-04-09 2:36 PM (#3967 - in reply to #3910) (#3967) Top

anurag



Posts: 136
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Country : India

anurag posted @ 2011-04-09 2:36 PM

a question off the topic..I want to know if the preliminary online is all we need to give(as it used to be every year) ,or the regional rounds are required too?
@ 2011-04-09 5:25 PM (#3968 - in reply to #3910) (#3968) Top

anurag



Posts: 136
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Country : India

anurag posted @ 2011-04-09 5:25 PM

Odd skyscraper: Some evens inside look like valid skyscrapers .The 2,4 in the third row can be valid and satsify the outside '3' at the same time.Is that a problem with the example? or will that hold for the test puzzle too?

Edited by anurag 2011-04-09 5:30 PM
@ 2011-04-09 6:10 PM (#3969 - in reply to #3968) (#3969) Top

debmohanty




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Country : India

debmohanty posted @ 2011-04-09 6:10 PM

anurag - 2011-04-09 5:25 PM

Odd skyscraper: Some evens inside look like valid skyscrapers .The 2,4 in the third row can be valid and satsify the outside '3' at the same time.Is that a problem with the example? or will that hold for the test puzzle too?

I think the rule and the example match perfectly.
@ 2011-04-10 10:40 AM (#3970 - in reply to #3910) (#3970) Top

kiwijam



Posts: 181
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Country : New Zealand

kiwijam posted @ 2011-04-10 10:40 AM

I don't understand why people like the reducing points. It's quirky and fun, but does it make the contest better?
As a middle-of-the-field solver, it doesn't change my strategy at all - I've always started with the puzzles that get me the fastest points, and leave the hard/slow ones for last. I assumed most people did this (unless they're intending to just do all the puzzles!).
If we scored this test normally, then wouldn't the rankings be almost exactly the same order anyway? e.g. we're all penalized a similar percentage of our total score in the end, except the fastest solvers who get an increased lead now.
@ 2011-04-10 10:41 AM (#3971 - in reply to #3910) (#3971) Top

kiwijam



Posts: 181
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Country : New Zealand

kiwijam posted @ 2011-04-10 10:41 AM

And on a different topic, the puzzles were great and I enjoyed the test. Thanks Deb!
@ 2011-04-10 11:16 AM (#3972 - in reply to #3970) (#3972) Top

MellowMelon



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Country : United States

MellowMelon posted @ 2011-04-10 11:16 AM

My own reason for liking it is that I think it's a much better tiebreaker than simple time bonus systems for sorting out the top of the rankings. For instance, awhile ago there was a test in which motris finished ahead of uvo by a single second. There might have been a clearer victor with a scoring system like this.
@ 2011-04-10 11:54 AM (#3973 - in reply to #3910) (#3973) Top

motris



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motris posted @ 2011-04-10 11:54 AM

Speaking as someone who normally tries to solve all puzzles and doesn't prioritize order, with the occasional consequences, on this test I certainly prioritized order much more. If anything, the slight change I might imagine solvers taking is shifting earlier to "clean-up" solving time versus going after big fish. With 15 minutes left to 90 minutes, you are less likely to start a 60 pointer versus smaller puzzles.

One of the goals of the delayed scoring I think is to run shorter tests for longer times without necessarily compromising the results at the top. FLIP is a great example of this type of test. While this test has a lot of easy puzzles, it probably is still too long of a test to showcase the best benefits of this type of system, which would be a 40-60 minute for uvo test that gets run for 2 hours (or more) instead.

To build off Melon's comment, I'm not sure this system can ever better separate the virtual tie between Ulrich and myself when we are 1 second apart and completely correct, but diminished scoring can help when a solver stops solving (with something like an error) but is at 23/24 very early, versus 24/24 after much more time. The clearest example was unfortunate for me but on Broken Pieces where I was done first (several minutes ahead of others, 45 minutes before end of the test) but with an entry error that I never caught. I ended up 12th, but some (hopefully not just me) would say my rate of solving was fast enough that my small mistake equaling no time-bonus was not a big enough mistake to cost the amount of points it did. Broken Pieces was an easy test with about 2x the amount of time needed, and is maybe even a better test than FLIP to showcase where this scoring could improve rankings.

Edited by motris 2011-04-10 12:18 PM
Twist - LMI April'11 Puzzle Test on 9th/10th64 posts • Page 1 of 3 • 1 2 3
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