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Nikoli Selection - LMI October Puzzle Test 1
   LMI Tests -> Monthly Sudoku and Puzzle Tests58 posts • Page 1 of 3 • 1 2 3
Administrator
Subject: Re: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-08 12:58 PM (#2085 - in reply to #2014) (#2085) Top


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Location: India
The puzzle booklet will be uploaded around mid-night (IST).

For all puzzles where rows and columns are to be entered - they will be explicitly marked in the puzzle booklet by arrows.

The puzzles in the booklet will be sorted in ascending order of points.
P01 - Numberlink
P02 - Hashi
P03 - Sudoku
P04 - Surarumo
P05 - Akari
P06 - Masyu
P07 - Fillomino
P08 - Hitori
P09 - Slitherlink
P10 - Shikaku
P11 - Yajilin
P12 - Nurikabe
P13 - Kakuro
P14 - Yajilin
P15 - Heyawake
P16 - LITS
P17 - Nurikabe
P18 - Slitherlink
Administrator
Subject: Re: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-09 12:56 AM (#2089 - in reply to #2014) (#2089) Top


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Location: India
Password protected pdfs uploaded.
Note that the marathon puzzles are in a separate pdf.
Both the pds share the same password (which obviously will be displayed after you start the test)

Password for marathon pdf is different than main puzzle pdf. Both passwords will be displayed after you start the test

edited by debmohanty at 2010-10-09 6:20 PM
detuned
Subject: Re: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-09 4:08 AM (#2090 - in reply to #2089) (#2090) Top




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At this point, I'd just like to thank all the help and support I got from Deb and testers - absolutely top stuff guys and this wouldn't have happened without you!
Administrator
Subject: Re: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-09 6:25 AM (#2091 - in reply to #2014) (#2091) Top


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Location: India
"Nikoli Selection" has started. All the best to everyone.
amitsowani
Subject: Re: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-09 3:24 PM (#2093 - in reply to #2091) (#2093) Top



PR 2020 (Casual and Word) Author

Posts: 339
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Location: India
We would like to apologize for mistakes in some of the puzzles.
1) The LITS image in the pdf is incorrect. We have uploaded an updated pdf. So all participants who are yet to participate please download the updated version.
2) The Nurikabe 10X10 puzzle is incorrect.
3) The Numberlinks puzzle has multiple solutions.
4) The Heyawake marathon puzzle is incorrect.

Extremely sorry for participants have already taken the test. I am sure you must have had a great time solving the rest of the puzzles. Hope it will serve as great practice for the WPC.

Password for marathon pdf is different than main puzzle pdf. Both passwords will be displayed after you start the test
amitsowani
Subject: Re: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-09 3:40 PM (#2094 - in reply to #2093) (#2094) Top



PR 2020 (Casual and Word) Author

Posts: 339
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Location: India
Meanwhile we have also double checked all the other puzzles.
So all participants can proceed confidently with the puzzles without having to worry about inaccuracy or non uniqueness.
rakesh_rai
Subject: Re: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-09 3:47 PM (#2095 - in reply to #2093) (#2095) Top



Mean Minis (2020) Author

Posts: 753
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Location: India
amitsowani - 2010-10-09 3:24 PM

1) The LITS image in the pdf is incorrect. We have uploaded an updated pdf. So all participants who are yet to participate please download the updated version.
2) The Nurikabe 10X10 puzzle is incorrect.
3) The Numberlinks puzzle has multiple solutions.


I am yet to take the test. It seems the updated pdf will have correct grid for LITS. As regard Nurikabe and Numberlinks - how are the points going to be awarded for these puzzles?
StGeorge
Subject: RE: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-09 4:07 PM (#2096 - in reply to #2014) (#2096) Top




Posts: 11

Location: Bulgaria
Frankly, I am a bit disappointed by the mistakes, as I wasted some time trying to fix the nurikabe and the LITS is a lot of points, but then again it's not like I was going to win anything anyway. I'll just solve the corrected versions and when I see my low score I'll have an excuse :P Still, I hope the people responsible take something out of this and be more careful next time :)

I haven't even started the marathon puzzles. Judging by Tom's post yesterday, I'm in for a treat :)
debmohanty
Subject: RE: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-09 4:18 PM (#2097 - in reply to #2096) (#2097) Top



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Location: India
StGeorge - 2010-10-09 4:07 PM

Frankly, I am a bit disappointed by the mistakes, as I wasted some time trying to fix the nurikabe and the LITS is a lot of points, but then again it's not like I was going to win anything anyway. I'll just solve the corrected versions and when I see my low score I'll have an excuse :P Still, I hope the people responsible take something out of this and be more careful next time :)
We understand yours frustration about spending time on those two puzzles.
After the announcement, we hope that players who are yet to play will enjoy remaining puzzles.
detuned
Subject: Re: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-09 4:33 PM (#2098 - in reply to #2093) (#2098) Top




Posts: 152
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Location: United Kingdom
I will take the blame here for this disaster - just not good enough I'm afraid.

We are currently discussing what to do. I have proposed the following:

-the nurikabe and numberlink are broken beyond repair and ought to be removed from the test (bringing the total score for the first section down to 920). Participants who have already finished the test should be compensated for the wasted time.

-the LITS is fixable. What will happen here is either the same as for the numberlink and the nurikabe - or else a new PB will be uploaded, and all earlier participants will be awarded the full points.

Once again, my sincerest apologies
yureklis
Subject: Re: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-09 5:30 PM (#2099 - in reply to #2014) (#2099) Top


CTC & TVC Author & Organizer

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I opened the first file but I have trouble with opening the marathon file. I downloaded it again but it does not accept the password (which was said to be common for both files). Is there something that I am missing?
Administrator
Subject: Re: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-09 5:34 PM (#2100 - in reply to #2099) (#2100) Top


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Location: India
yureklis - 2010-10-09 5:30 PM

I opened the first file but I have trouble with opening the marathon file. I downloaded it again but it does not accept the password (which was said to be common for both files). Is there something that I am missing?
Sent you password for marathon. check your forum inbox
debmohanty
Subject: Re: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-09 5:43 PM (#2101 - in reply to #2099) (#2101) Top



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Location: India
yureklis - 2010-10-09 5:30 PM

I opened the first file but I have trouble with opening the marathon file. I downloaded it again but it does not accept the password (which was said to be common for both files). Is there something that I am missing?


Both the files have 2 different passwords now. Both passwords are displayed in the submission page after you start the test.
amitsowani
Subject: Re: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-09 6:03 PM (#2102 - in reply to #2101) (#2102) Top



PR 2020 (Casual and Word) Author

Posts: 339
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Reposting to make sure that everyone has read this post:

1) The LITS image in the pdf is incorrect. We have uploaded an updated pdf. So all participants who are yet to participate please download the updated version.
2) The Nurikabe 10X10 puzzle is incorrect.
3) The Numberlinks puzzle has multiple solutions.
4) The Heyawake marathon puzzle is incorrect.

Password for marathon pdf is different than main puzzle pdf. Both passwords will be displayed after you start the test
Akuma21
Subject: Re: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-09 9:38 PM (#2108 - in reply to #2014) (#2108) Top




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A good set of puzzle, i like it! I have done only a stupid error in hashi'answer key; i have entered the number of all double bridges.
Good luck to everyone!
Deyan
Subject: Re: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-09 11:15 PM (#2109 - in reply to #2014) (#2109) Top




Posts: 7

Location: Bulgaria
I had the bad luck to solve the wrong PDF.

This is what I found:
#1 Numberlink - multiple solutions
When I realized it, I just found a solution that is using all cells and got points
#5 Akari - 4 solutions
For luck, all solutions have the same answer, so no problems with it
#12 Nurikabe - wrong image
I spent a lot of time on it. After time limit I solved the bigger Nurikabe for about 1/3 of the time I spent on this.
Actually, it's very easily fixable: just change '4' to '3' at R5C10
#16 LITS
I also spent some time until found it's wrong (one small line, but a big difference)
detuned
Subject: Re: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-09 11:53 PM (#2110 - in reply to #2109) (#2110) Top




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For anyone wondering what the big heyawake should have looked like:

Puzzle: http://www.warwick.ac.uk/~marear/36x20_heyawake.png
(and solution: http://www.warwick.ac.uk/~marear/36x20_heyawake_solution.png)

Please accept this as something of an apology :)
debmohanty
Subject: Re: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-10 1:06 AM (#2111 - in reply to #2109) (#2111) Top



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Location: India
Deyan - 2010-10-09 11:15 PM

I had the bad luck to solve the wrong PDF.
#5 Akari - 4 solutions
For luck, all solutions have the same answer, so no problems with it
Sorry again about the problems.
#5 Akari has one solution. Please check your email.
Deyan
Subject: Re: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-10 1:57 AM (#2112 - in reply to #2111) (#2112) Top




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Location: Bulgaria
debmohanty - 2010-10-09 9:06 PM

Deyan - 2010-10-09 11:15 PM

I had the bad luck to solve the wrong PDF.
#5 Akari - 4 solutions
For luck, all solutions have the same answer, so no problems with it
Sorry again about the problems.
#5 Akari has one solution. Please check your email.


Oops
You are right. I should change my notation for this puzzle.
StGeorge
Subject: RE: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-10 4:36 AM (#2113 - in reply to #2014) (#2113) Top




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Location: Bulgaria
The heyawake marathon was wrong? I didn't notice. It did take me quite a while to solve it - about 75 minutes - but I didn't see any mistakes. I'm sure I can easily be missing something and the correct version that Tom posted looks quite a bit different. Can someone tell me what the mistake is? Or is it that the one in the booklet is still a valid heyawake, just not the one that was intended? That would be a weird happenstance :)
detuned
Subject: Re: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-10 5:37 AM (#2114 - in reply to #2113) (#2114) Top




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I didn't notice either - until it was too late.

There was a thing quite early on in the solve where you have a choice between either entirely surrounding an empty square with shaded squares, or else leaving 3 rooms empty in a row. The latter option was apparently quite subtle as I must have passed over it at least four or five times. Either that, or I'm an idiot. The new version is basically a fiddle to change as little of the solving experience (after wrongly assuming the 3 empty rooms in a row) as possible - I'd estimate about 80% of the puzzle solves the same.

Edited by detuned 2010-10-10 5:39 AM
motris
Subject: Re: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-10 10:24 AM (#2115 - in reply to #2014) (#2115) Top




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I obviously had the benefit of the "improved" test, but that won't keep me from my typical counting error (on the highest possible valued puzzle to boot). Got through all the solvable puzzles though. I think the marathon Kakuro was guilty of being too cute (not a good thing in a competition), but otherwise a lot of very fun puzzles to solve. Thanks for the puzzles Tom.

Edited by motris 2010-10-10 10:25 AM
StGeorge
Subject: RE: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-10 2:40 PM (#2117 - in reply to #2014) (#2117) Top




Posts: 11

Location: Bulgaria
Yeah, I found the spot and fixed it up with the new image, it should be ok now :)

By the way, the masyu marathon was pretty fun, I had a couple of warm, fuzzy "Oooh" moments solving it :P
forcolin
Subject: RE: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-10 2:54 PM (#2118 - in reply to #2014) (#2118) Top





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I made it too although my PC froze as soon as I copy/pasted the pw. Had to reset and reboot and lost 5-6 minutes. Therefore I guess this time motris will beat me

Nice set of puzzles, although I did not always find a straight relationship between the points awarded and the difficulty level. Thanks Tom, better luck for the future

stefano
ps: how do I rate the puzzles?

Edited by forcolin 2010-10-10 2:55 PM
rajeshk
Subject: Re: Nikoli Selection - LMI October Puzzle Test 1 @ 2010-10-10 5:29 PM (#2119 - in reply to #2014) (#2119) Top


WSPC Organizer

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Nice set of puzzles. Made one error while submitting the answer to lost 100 points. Do take care while submitting your answers.


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