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Announcing "LMI Beginners' Sudoku Contests"
   LMI Tests -> Indian Sudoku and Puzzle Championships363 posts • Page 7 of 15 • 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
detuned
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2012-12-06 4:02 AM (#9075 - in reply to #7911) (#9075) Top




Posts: 151
1002020
Location: United Kingdom
I certainly have a tough act to follow in Fred, but I've tried my best to put together a nice set. I don't think it will be quite as challenging in difficulty as November! I suppose if you look at my blog you'll see I haven't posted sudoku variants for quite a while, so it was lots of fun putting some sudoku together for a change. Hopefully you'll see that when you get to solve the puzzles :)
distri
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2012-12-08 4:15 AM (#9084 - in reply to #9075) (#9084) Top





Posts: 12

Location: France
detuned - 2012-12-06 4:02 AM

I certainly have a tough act to follow in Fred


As everyone knows , the grids of Fred shake the neurons .. ....Ah !Ah ! but we like our agitator of brain, of course !!!

detuned - 2012-12-06 4:02 AM
but I've tried my best to put together a nice set


That's very kind of you to prepare the grids for (the past) and next Edition of Lmi beginners.
Thanks to the authors , we make progress .
Thank you very much.


tamz29
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2012-12-13 11:52 AM (#9108 - in reply to #7911) (#9108) Top




Posts: 170
100202020
Location: Thailand
Nice clean sudokus, thanks for the puzzles Tom. :)
debmohanty
Subject: RE: Announcing "LMI Beginners' Sudoku Contests" @ 2012-12-13 4:59 PM (#9111 - in reply to #7911) (#9111) Top



1000500100100100202020
Location: India
---------
So 5 minutes 36 seconds is the time to beat.

Edited by debmohanty 2012-12-13 5:05 PM
Fred76
Subject: RE: Announcing "LMI Beginners' Sudoku Contests" @ 2012-12-13 7:51 PM (#9113 - in reply to #7911) (#9113) Top



Diagonal Vision Author

Posts: 335
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Location: Switzerland
Nice sudokus, Tom. Thanks !
detuned
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2012-12-13 8:17 PM (#9114 - in reply to #7911) (#9114) Top




Posts: 151
1002020
Location: United Kingdom
My pleasure. I hope everyone's neurons have been tickled, rather than shaken, so far :)
flk
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2012-12-14 7:38 PM (#9127 - in reply to #7911) (#9127) Top




Posts: 23
20
Location: Australia
Thanks for the puzzles
joshuazucker
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2012-12-15 12:13 AM (#9128 - in reply to #7911) (#9128) Top




Posts: 31
20
Location: USA
Nice puzzles! I had a horrendously difficult time with the Outside until I noticed that I had failed to use one of the clues. The classics were all pretty nice puzzles, the no knight was rather clever, and the killer was really beautiful but I think pretty difficult for a beginner contest! It took a while to see how to make use of the layout most effectively.
distri
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2012-12-16 4:01 PM (#9134 - in reply to #7911) (#9134) Top





Posts: 12

Location: France
In first , the possibility of playing online is really comfortable with the zoom , I see as well as a mole !!!
Thank you Deb .
I thought that I had no chance I never play untouch , anti knight and killer , but the grids were very nice , not easy but not too difficult .(I confirm tickles only...Ah!Ah!)
unfortunately about the killer (I confirm more that tickles in spite of 15 in the middle) ..... I close my mouth because I played as a smurfette , to the right ...to the left ....etc but never at the right place !!!!! result.....far too many time .
The classics were great especially the third and the fourth .
Thank you Tom

Edited by distri 2012-12-16 4:23 PM
edderiofer
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2012-12-18 7:07 PM (#9150 - in reply to #7911) (#9150) Top





Posts: 8

Location: UK
All of the puzzles were very nice, though I broke the Killer a couple of times, gave up, came back the next day, and solved it. Also, I spent a few minutes staring at a nearly-completed AntiKnight puzzle before realizing that I had forgotten to use the 2 in the bottom-centre grid.
Administrator
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2012-12-20 5:38 AM (#9152 - in reply to #7911) (#9152) Top


20005001001002020
Location: India
December Beginners' Contest is over now. Passwords removed from booklets.
Administrator
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2012-12-20 2:59 PM (#9158 - in reply to #7911) (#9158) Top


20005001001002020
Location: India
adityasaraf007 and khuski move to seasoners after Decembers contest.
detuned
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2012-12-20 7:42 PM (#9160 - in reply to #7911) (#9160) Top




Posts: 151
1002020
Location: United Kingdom
I guess I'll had some of my own thoughts, as Fred did last month.

Classics: in general I quite like writing easy classics as you can really put a lot of thought into the design. With puzzle #1 I was hoping to get the digits 1-8, rather than 2-9 around the edge of the puzzle, but sometimes it doesn't quite work out like that. #2 featured some diagonal stripes - and this meant there were very few opportunities to put singles into the puzzle. Instead it was more profitable to solve by focussing on one or two digits at a time. This was supposed to be true of #3 as well, but it turned out even easier than that. I was astonished to see several sub-minute solves, with some as quick as 40 seconds! #4 was supposed to be a little trickier, and is based upon a favourite design of mine. I've used it in tests before, and as perhaps die hard fans of my blog will tell you, is (almost) the pattern I used for my first ever puzzle!

Variants: sometimes you just throw down a design and see where it gets you. With the added constraints that a variant can give, you often have a puzzle that needs very little tweaking. You can clearly see this is what I was after with the untouch puzzle. I was hoping not to need those digits in the 5th column, but didn't quite manage it. The killer was my favourite of the lot. Actually I was a little dopey when initially sketching out the cages and left blank spaces at R1C5, R5C1, R5C9 and R9C1. When I came to extend the cages that now contain those cells, I found that the puzzle still solved perfectly well. A pet hate of mine with killers is where you have to do too much adding up. I guess you have to do a bit to get yourself started here with the "cross" in the middle, but I much prefer to rely on logic that involves restricting a cage to a potential set of numbers and then using them as mini extra regions. So once you worked out how the L shaped 16 and 17 cages in the middle interacted, you were well on your way to solving. I suppose the outside was probably my least favourite of the set. I can't say I'm totally in love with this variant, but I tried to give a good clean solve and leave things well presented. The unfortunate thing with this sort of variant is that often you can miss the significance of one particular clue and be left scratching you head for a while until you come to re-examine it. Finally the anti-knight. I initially tried a design very similar to the untouch, but couldn't get it to work. In a fit of desperation (it was getting quite late that evening and i wanted to finish everything off), I had a look at Fred's completed grid from last month, permuted the digits and gave it a rotation, and then sketched out a striking design which I thought would solve uniquely. Without too much tweaking I got what I wanted. There are lots of subtle interactions with the antiknight logic for certain cells in the grid, and so if you knew what you were looking for the solve was fairly straightforward.

Anyhow, I hope everyone enjoyed the puzzles, congratulations to the winners, and my thanks to LMI for giving me the opportunity to showcase some of my puzzles :)

Tom
prasanna16391
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2012-12-20 8:02 PM (#9161 - in reply to #7911) (#9161) Top


WSPC Organizer

Posts: 1340
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Location: India
Thanks Tom for providing a nice set to solve. The detailed post about creating the grids is really interesting and useful too.

Anyway, the top 3 Beginners are zbych (Poland), DavidCollison (UK) and elena_tens (Greece). dp_94 had the best Indian performance among the Beginners.

Among Seasoners, no one got close to the fairly early "time to beat" set by jaku111 (Czech Republic). Timothy (France) and Gotroch (Czech Republic) are the "best of the rest" with 2nd and 3rd place respectively.

Congrats to all the winners, and thank you all for participating. :)
Administrator
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2013-01-08 10:50 AM (#9378 - in reply to #9161) (#9378) Top


20005001001002020
Location: India

January Beginners' Sudoku Contest

Types

Here are the types for the January Edition of LMI Beginners' Contest - http://logicmastersindia.com/BeginnersSudoku/types/?test=B201301

We are continuing with 2 variants from last time (UnTouch and Killer)
We are introducing 1 new variant (Sudoku XV)
Now that we have been running Beginners for 6 months, we have decided to start revisiting an old variant every month. It will be Irregular Sudoku this time.

Dates

Will be announced soon.

Author

All 8 Sudokus for January are written by Richard Stolk. Read more about Richard at our authors page, and don't forget to check out his recently concluded Advent Calendar 2012.

prasanna16391
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2013-01-16 2:08 PM (#9501 - in reply to #9378) (#9501) Top


WSPC Organizer

Posts: 1340
10001001001002020
Location: India

Update

Dates

The contest will start on the 18th of January and run till the 24th, including both dates.

xevs
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2013-01-18 1:23 PM (#9515 - in reply to #7911) (#9515) Top


Toketa? Selection Author

Posts: 43
2020
Location: Japan
About Untouch Sudoku, can identical digits touch each other "diagonally"?
I can understand it's not allowed (by observing the Example), but I think some "beginner"s can't.
Richard
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2013-01-18 1:31 PM (#9516 - in reply to #9515) (#9516) Top


WCPN Author

Posts: 191
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Location: Netherlands
xevs - 2013-01-18 1:23 PM

About Untouch Sudoku, can identical digits touch each other "diagonally"?
I can understand it's not allowed (by observing the Example), but I think some "beginner"s can't.


Yes, it's meant that they can't touch each other diagonally.
Administrator
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2013-01-18 1:48 PM (#9517 - in reply to #9516) (#9517) Top


20005001001002020
Location: India
Richard - 2013-01-18 1:31 PM

xevs - 2013-01-18 1:23 PM

About Untouch Sudoku, can identical digits touch each other "diagonally"?
I can understand it's not allowed (by observing the Example), but I think some "beginner"s can't.


Yes, it's meant that they can't touch each other diagonally.
Well ... "diagonally" is the only way identical digits can touch each other in a Sudoku

[ Added the missing word in link for types. It was already present in pdf. ]
rajeshk
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2013-01-19 3:36 PM (#9526 - in reply to #7911) (#9526) Top


WSPC Organizer

Posts: 497
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Location: India
Heading of the contest page needs an update. It reads date in Dec.

TiiT
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2013-01-19 6:30 PM (#9528 - in reply to #7911) (#9528) Top




Posts: 111
100
Location: Estonia
Why it doesn't let me to print variants??
Administrator
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2013-01-19 6:47 PM (#9530 - in reply to #9528) (#9530) Top


20005001001002020
Location: India
@TiiT, please check my messages
huisouvik
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2013-01-20 2:53 AM (#9533 - in reply to #7911) (#9533) Top




Posts: 4

Location: india
I would like to know if anyone has attempted correctly the 'Killer' sudoku in variants in LMI beginners' test, january. If yes, can anyone tell me the correct solution for the 'Killer' sudoku in variants. I have attempted it and think my answer is correct. But the server is showing the answer to be wrong. My answer is O-564782391 and P-327941865

Edited by huisouvik 2013-01-20 2:59 AM
Administrator
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2013-01-20 3:31 AM (#9534 - in reply to #7911) (#9534) Top


20005001001002020
Location: India
@huisouvik, Please check your inbox for solution to killer.
kishy72
Subject: Re: Announcing "LMI Beginners' Sudoku Contests" @ 2013-01-20 6:32 PM (#9536 - in reply to #9534) (#9536) Top




Posts: 366
100100100202020
Location: india
hii is it valid to claim points for mistyping a number...when i first submitted the solution to answer for killer ,under time pressure ,in the second row of the answer solution i typed the wrong number as the first digit..i could not check again ..i had only 10 seconds remaining..after i completed i realised that i had lost 5 points for mistyping a single digit..not sure if it is valid to claim here...can the admin check my submission pls and see if it is a vaild claim....
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