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A or B — LMI October Sudoku Test — 1st and 2nd October
   LMI Tests -> Monthly Sudoku and Puzzle Tests47 posts • Page 2 of 2 • 1 2
debmohanty
Subject: RE: A or B — LMI October Sudoku Test — 1st and 2nd October @ 2011-10-03 8:22 AM (#5737 - in reply to #5664) (#5737) Top



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Location: India		Many thanks to Branko and Rakesh for pre testing the Sudokus. Branko's timing were especially impressive.

Thanks to David Millar for creating the logo.
prasanna16391
Subject: Re: A or B — LMI October Sudoku Test — 1st and 2nd October @ 2011-10-03 9:34 AM (#5738 - in reply to #5664) (#5738) Top


2021 World Sudoku+Puzzle Convention Organizer

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Location: India		Looking forward to C or D :D
vopani
Subject: Re: A or B — LMI October Sudoku Test — 1st and 2nd October @ 2011-10-03 9:47 AM (#5739 - in reply to #5664) (#5739) Top


WSPC Organizer

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Location: India		The fun on the 'A or B' style of solving is to first solve the grid as a normal classic, get as many numbers as possible, and then try to find a contradiction in one of the rules, rather than choosing one and solving until you go wrong or reach the solution. Most of the sudokus were so neatly made. Even/Neighbours and Quadro/MultiTable were phenomenal!

C or D definitely on the cards.
rakesh_rai
Subject: Re: A or B — LMI October Sudoku Test — 1st and 2nd October @ 2011-10-03 10:41 AM (#5741 - in reply to #5739) (#5741) Top



Mean Minis (2020) Author

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Location: India		I found half of the grids tough while test solving. However, finding the right variant was mostly easy and elegant.

Looked at the score and noticed that the ratings (as of now) hover between 7.46 and 8.25 for all sudokus - which effectively means that the grids had consistent quality about them and almost all sudokus were highly rated by at least some competitors. Probably this test has the lowest standard deviation ever across grids.
debmohanty
Subject: Re: A or B — LMI October Sudoku Test — 1st and 2nd October @ 2011-10-03 1:14 PM (#5743 - in reply to #5741) (#5743) Top



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Location: India
rakesh_rai - 2011-10-03 10:41 AM

Looked at the score and noticed that the ratings (as of now) hover between 7.46 and 8.25 for all sudokus - which effectively means that the grids had consistent quality about them and almost all sudokus were highly rated by at least some competitors. Probably this test has the lowest standard deviation ever across grids.


That is a close observation, and you are certainly right that standard deviation is lowest here. Here is top 5 tests with low standard deviations (after we introduced 10-pointer ratings)



Another stat of minor importance : Marked Quadro / Multiplication Table is the first puzzle to be submitted by more than 100 players (125 to be precise), still being 100% correct. The next best was Skyscrapers sudoku (Small) in Logidoku by 81 players.
Fred76
Subject: Re: A or B — LMI October Sudoku Test — 1st and 2nd October @ 2011-10-03 2:59 PM (#5744 - in reply to #5709) (#5744) Top



Diagonal Vision Author

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TiiT - 2011-09-28 10:55 AM

I should always read all the rules more carefully.


It looks like you are very strong when you read the rules carefully . You were very close to win a monthly test ! I hope you'll not read WSC' instructions booklet carefully

Thanks for the fun test. Deb, you have accustomed us to magnificent grids, it was still the case this time.
Since November 2010, I had not made such a performance on LMI monthly test. It's very encouraging for next month, even if the truth of the day is not the truth of next day.

Fred
TiiT
Subject: Re: A or B — LMI October Sudoku Test — 1st and 2nd October @ 2011-10-03 3:23 PM (#5745 - in reply to #5744) (#5745) Top




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Fred76 - 2011-10-04 11:59 AM

It looks like you are very strong when you read the rules carefully . You were very close to win a monthly test ! I hope you'll not read WSC' instructions booklet carefully

Fred



Thanks Fred! It was great test for me, because I didn't do mistakes (like sometimes happens). Also I was able to find the correct rules and solve them without any longer pauses, so It went quickly for me. Only puzzle, I was a bit troubled, was the last one (I'd have liked outside much more), but It was the hardest one in this test anyway. Congrats to you too, Fred, and Thomas, ofcourse. This result means much to me.

Tiit
Tejal Phatak
Subject: Re: A or B — LMI October Sudoku Test — 1st and 2nd October @ 2011-10-03 9:07 PM (#5746 - in reply to #5745) (#5746) Top




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Location: India		Deb! Fabulous Test!!! :)
Thoroughly enjoyed solving it, just missed completing an LMI test, was acheivable.
Para
Subject: Re: A or B — LMI October Sudoku Test — 1st and 2nd October @ 2011-10-04 1:32 AM (#5747 - in reply to #5664) (#5747) Top




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Location: The Netherlands		Thanks Deb, that was fun. Even though I made 2 mistakes.

My mistake for puzzle #2 was really dumb though and a bit miraculous. I determined the right rules quickly with the {45} pair in R12C1. Except somehow I continued solving with the opposite rule. And the puzzle also solves uniquely with that rule besides of course that {45} pair. I'm not sure if you were aware of this occurence, but it was somewhat a shocker to find out i got it wrong, till I realised what had happened. then it was more amazement that the puzzle still solved that way.
debmohanty
Subject: RE: A or B — LMI October Sudoku Test — 1st and 2nd October @ 2011-10-04 6:05 AM (#5748 - in reply to #5664) (#5748) Top



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Location: India		It was such an easy puzzle, but you and aldentea submitted identical wrong solutions. Both being top players, I kept wondering what could be the problem, but never figured out.
No, I didn't know that it can be solved the other way except that 4/5 pair.
aldentea
Subject: Re: A or B — LMI October Sudoku Test — 1st and 2nd October @ 2011-10-04 9:41 AM (#5750 - in reply to #5747) (#5750) Top




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Para - 2011-10-04 4:32 AM

My mistake for puzzle #2 was really dumb though and a bit miraculous. I determined the right rules quickly with the {45} pair in R12C1. Except somehow I continued solving with the opposite rule.


That is just the same as what happened on me!
I'm glad that there exists another player who made such a CRAZY mistake.
Fred76
Subject: Re: A or B — LMI October Sudoku Test — 1st and 2nd October @ 2011-10-04 3:28 PM (#5753 - in reply to #5750) (#5753) Top



Diagonal Vision Author

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Location: Switzerland		Funny mistake !

It should have been worse for you if this "special rule" sudoku had been more difficult. I solve it with this "special rule" and I think the difficulty is roughly the same as the one with original rule.
Ours brun
Subject: RE: A or B — LMI October Sudoku Test — 1st and 2nd October @ 2011-10-05 11:49 PM (#5761 - in reply to #5664) (#5761) Top





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Location: France		Thanks Deb, this was really good and, in particular, extremely fun.

A fifth place is rather satisfying considering the number of stupidities I made - and will really have to avoid in one month :

1) trying to solve the Touchy as an Untouch,
2) not noticing that the "2" clue was not the only one on the Skyscraper,
3) spending 30' on the last puzzle ! I guess I was just a bit stressed after having solved the first 11 in less than an hour because I tried it again this morning, and it went well. Stupid.

Puzzles were very nice, including this last one, and really affordable.

Thanks again, and congrats to the toppers !
vopani
Subject: RE: A or B — LMI October Sudoku Test — 1st and 2nd October @ 2011-10-06 10:26 AM (#5762 - in reply to #5761) (#5762) Top


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Ours brun - 2011-10-05 11:49 PM
A fifth place is rather satisfying considering the number of stupidities I made - and will really have to avoid in one month :

1) trying to solve the Touchy as an Untouch,
2) not noticing that the "2" clue was not the only one on the Skyscraper,
3) spending 30' on the last puzzle ! I guess I was just a bit stressed after having solved the first 11 in less than an hour because I tried it again this morning, and it went well. Stupid.

Thanks again, and congrats to the toppers !

So, in short, are you trying to say "I missed an easy opportunity to be on the podium"?
Congrats on your best LMI Monthly Test performance

Edited by Rohan Rao 2011-10-06 10:28 AM
Ours brun
Subject: RE: A or B — LMI October Sudoku Test — 1st and 2nd October @ 2011-10-08 10:12 PM (#5774 - in reply to #5664) (#5774) Top





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Location: France		Well, you never know, perhaps the top 4 players lost even more time than I did. But indeed I missed an opportunity to do a really good perf in terms of position as well as of timing (I tried again the last puzzle a few days later, and solved it quite easily). Still, 5th is not bad and since a few months I do less mistakes than I used to, so the tendancy remains positive. Thanks and congrats to you too for a good perf !
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