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Administrator
   
Country : India | |
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Administrator
Country : India | Logic Masters India announces December Sudoku Test — Best Of LMI Mocks
Author : Deb Mohanty
Dates : 16 th - 18 th December
Length : 120 minutes
IB and Submission Link : here
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Administrator
Country : India |
Serbian Sudoku Championship
This test will also be used as Serbian Sudoku Championship. So this test will start at a time which is most convenient to Serbian participants, i.e. at 19:00 hours Serbian time on Friday. Submissions until 21:10 hours Serbian time will be considered for the championship. So Serbian players must start early enough to permit themselves full solving time. Check this pdf at Puzzle Serbia site for other important information.
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Minfang Lin
Posts: 40
Country : China | The solution of "all odd or all even" is wrong, see block 6 and 9. |
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debmohanty
Country : India | Minfang Lin - 2011-12-12 10:05 AM
The solution of "all odd or all even" is wrong, see block 6 and 9. Uploaded IB with correct solution. My solving mistake :- (
Also, changed the Kropki variation name to have one name across pages.
Please note, almost all examples in the IB actually appeared in the mock tests. So their difficulty level may vary a lot, and has nothing to do with the points assigned. |
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Minfang Lin
Posts: 40
Country : China | |
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tamz29
Posts: 225
Country : Thailand | tamz29 posted @ 2011-12-12 1:53 PM In Neighbours=N, will the information of N=? be given? |
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debmohanty
Country : India | tamz29 - 2011-12-12 1:53 PM
In Neighbours=N, will the information of N=? be given?
N=? will be printed in the booklet. |
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swaroop2011
Posts: 668
Country : India | hey just to clarify the partial point system of LINKED MINI SUDOKU
it says "grid without hints 30,grid with hints 15 points each"
so if i solved four grids that has hints and one grid which does not have hints..
then i will get 15+15+15+15+30=90 points greater than 75(for completely solved puzzle) |
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Gotroch
Posts: 83
Country : Czech Republic | Gotroch posted @ 2011-12-12 7:59 PM swaroop2011 - 2011-12-12 6:07 PM
hey just to clarify the partial point system of LINKED MINI SUDOKU
it says "grid without hints 30,grid with hints 15 points each"
so if i solved four grids that has hints and one grid which does not have hints..
then i will get 15+15+15+15+30=90 points greater than 75(for completely solved puzzle)
I guess there will be only four grids (30+15+15+15 = 75 ) |
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debmohanty
Country : India | Gotroch - 2011-12-12 7:59 PM
I guess there will be only four grids (30+15+15+15 = 75)
Yes.
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swaroop2011
Posts: 668
Country : India | in SERIES SUDOKU
in given series of numbers : the number 1 is repeated
is it purposefully given or bymistakely. |
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vopani
Posts: 739
Country : India | vopani posted @ 2011-12-12 9:31 PM swaroop2011 - 2011-12-12 9:26 PM
in SERIES SUDOKU
in given series of numbers : the number 1 is repeated
is it purposefully given or bymistakely.
The theme is 'Pi'. |
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swaroop2011
Posts: 668
Country : India | Rohan Rao - 2011-12-12 9:31 PM
swaroop2011 - 2011-12-12 9:26 PM
in SERIES SUDOKU
in given series of numbers : the number 1 is repeated
is it purposefully given or bymistakely.
The theme is 'Pi'.
hey sry i didnt understood what are u saying? |
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David McNeill
Posts: 63
Country : United Kingdom | In Series Sudoku, is it true, from a solving point of view, that the order of the series has no significance and we simply have to ensure that the shaded cells contain a digit contained in the set of given numbers? |
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debmohanty
Country : India | David McNeill - 2011-12-13 3:54 AM
In Series Sudoku, is it true, from a solving point of view, that the order of the series has no significance and we simply have to ensure that the shaded cells contain a digit contained in the set of given numbers?
Yes. |
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vopani
Posts: 739
Country : India | vopani posted @ 2011-12-13 9:52 AM swaroop2011 - 2011-12-12 9:41 PM
Rohan Rao - 2011-12-12 9:31 PM
swaroop2011 - 2011-12-12 9:26 PM
in SERIES SUDOKU
in given series of numbers : the number 1 is repeated
is it purposefully given or bymistakely.
The theme is 'Pi'.
hey sry i didnt understood what are u saying?
The repetition of digits and sequence of digits does not matter as long as those digits appear in shaded cells. The '1' is repeated because the theme is 'Pi', the givens are shaped like the symbol 'Pi' and the numbers outside represent the value of 'Pi'. Edited by Rohan Rao 2011-12-13 9:53 AM
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swaroop2011
Posts: 668
Country : India | ohh got it :) |
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Fred76
Posts: 337
Country : Switzerland | Fred76 posted @ 2011-12-13 5:36 PM It looks very interesting  .
I find it difficult to distinguish the gray lines and arrows on hidden skyscrapers and diagonal consecutive. Could they be a bit darker on the test grids?
Thanks !
Fred |
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debmohanty
Country : India | Fred76 - 2011-12-13 5:36 PM
It looks very interesting .
I find it difficult to distinguish the gray lines and arrows on hidden skyscrapers and diagonal consecutive. Could they be a bit darker on the test grids?
Thanks !
Fred
Changed the arrows to 40% black (it was 20% earlier ). Let me know if this is better.
 (Hidden_New.png)Attachments ----------------  Hidden_New.png (21KB - 0 downloads) |
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Fred76
Posts: 337
Country : Switzerland | Fred76 posted @ 2011-12-13 8:35 PM Much better for me, thanks ! |
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debmohanty
Country : India | Ok. Same changes to Diagonal Consecutive.
 (Dia_Cons_New.png)Attachments ---------------- Dia_Cons_New.png (17KB - 0 downloads) |
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greenhorn
Posts: 164
Country : Slovakia | I definitely love the "number tree." Great idea, Deb! |
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debmohanty
Country : India | greenhorn - 2011-12-15 3:38 PM
I definitely love the "number tree." Great idea, Deb!
Thanks, but I deserve 0 credit for that.
Serkan had it designed from Umit Berkup who is a Turkish graphics and puzzle designer with specialization in book covers, oil paintings, photoshop manipulations and comics. Some of Umit's work can be seen at his Facebook page - http://www.facebook.com/umitberkup?sk=photos |
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utkaarsh
Posts: 89
Country : India | I was solving the IB exmaples and found Windoku sample a tough one, took more than 10 minutes, just wanted general opinion on its difficulty, if some top solvers can share thier timing !!
Edited by utkaarsh 2011-12-15 9:08 PM
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vopani
Posts: 739
Country : India | vopani posted @ 2011-12-16 10:42 AM utkaarsh - 2011-12-15 9:07 PM
I was solving the IB exmaples and found Windoku sample a tough one, took more than 10 minutes, just wanted general opinion on its difficulty, if some top solvers can share thier timing !!
I would not say it is easy for an average solver, but I've seen ones that are a lot tougher than this one. Took me around 8 minutes for this one (and solvable logically, without a need for guesswork ), but I am not a 'top solver' in Windoku :- )
I hope you use the Windoku 'extra-regions' rule: (Each set of same-coloured cells contains numbers 1-9 apart from the nine 3x3 boxes and four 3x3 regions ) Edited by Rohan Rao 2011-12-16 1:46 PM
 (Windoku Grid.png)Attachments ---------------- Windoku Grid.png (4KB - 5 downloads) |
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utkaarsh
Posts: 89
Country : India | Thanks Rohan, yes did make use of the extra region logic, but resorted to trial and error which did not go right !!
Edited by utkaarsh 2011-12-16 12:17 PM
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swaroop2011
Posts: 668
Country : India | can somebody help me out with NEIGHBOURS
i only got one number 5 at R8C8 and thats it..
No further clues to proceed accept some pencil markings.. |
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Fred76
Posts: 337
Country : Switzerland | Fred76 posted @ 2011-12-16 6:42 PM swaroop2011 - 2011-12-16 6:01 PM
can somebody help me out with NEIGHBOURS
i only got one number 5 at R8C8 and thats it..
No further clues to proceed accept some pencil markings..
In the 9th box: you have a pair 28 next to the 5 (edges ). Then at R9C7 in can only be 4 or 7. Then you can place the 1 in row 8 (considering that there isn't edge between R9C67, then 4 can't be placed at R9C6  ). You can place 1 and 4 in 8th box, then the 9 in row 8, etc...
I like how the N=3 works (I think that perhaps I'm the inventor of this variant? ): You have to "think" digits into 3 groups: 1-4-7, 2-5-8 and 3-6-9. And in these groups 4, 5 and 6 play a central role.
Each N has it's own logic, perhaps you have to think about it for each N before the test
Fred |
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swaroop2011
Posts: 668
Country : India | Fred76 - 2011-12-16 6:42 PM
swaroop2011 - 2011-12-16 6:01 PM
can somebody help me out with NEIGHBOURS
i only got one number 5 at R8C8 and thats it..
No further clues to proceed accept some pencil markings..
In the 9th box: you have a pair 28 next to the 5 (edges ). Then at R9C7 in can only be 4 or 7. Then you can place the 1 in row 8 (considering that there isn't edge between R9C67, then 4 can't be placed at R9C6 ). You can place 1 and 4 in 8th box, then the 9 in row 8, etc...
I like how the N=3 works (I think that perhaps I'm the inventor of this variant? ): You have to "think" digits into 3 groups: 1-4-7, 2-5-8 and 3-6-9. And in these groups 4, 5 and 6 play a central role.
Each N has it's own logic, perhaps you have to think about it for each N before the test
Fred
hey thanks.
hey can u tell me for the NON CONSECUTIVE KILLER
for this somehow i got
2 at R1C6
2 at R3C7
8 at R3C8
7 at R4C1
ONLY THESE FOUR NUMBERS.. Edited by swaroop2011 2011-12-16 6:56 PM
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Administrator
Country : India |
Announcements- Password protected pdf uploaded. It has 9 pages, each page has 2 sudokus, there is no cover page / points table.
- Partial bonus points : 6 points per minute saved, if all 18 are submitted, but one sudoku is incorrect with maximum 4 digits wrong
Some usual stuff- 3 of the 4 mini sudokus, each has 1 row marked. All other sudokus are marked with 2 rows / columns
- Sudokus can be solved either online or using printing. It is based on your choice and comfort
- If you are solving online, it is not necessary to submit again using paper mode. Some players do this even after repeated requests. Please don't do.
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debmohanty
Country : India | |
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debmohanty
Country : India | |
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rajeshk
Posts: 542
Country : India | rajeshk posted @ 2011-12-18 9:29 AM
hey can u tell me for the NON CONSECUTIVE KILLER
for this somehow i got
2 at R1C6
2 at R3C7
8 at R3C8
7 at R4C1
ONLY THESE FOUR NUMBERS..
To proceed little further, check 20 at 3rd block can contain only 956, to avoid 56 coming consecutive, 9 has to be inbetween them at R1C8
Edited by rajeshk 2011-12-18 9:30 AM
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Para
Posts: 315
Country : The Netherlands | Para posted @ 2011-12-19 1:24 AM Well the puzzling was fun, except I was too slow/late putting in the answers, so that was a bit lousy. |
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motris
Posts: 199
Country : United States | motris posted @ 2011-12-19 1:43 AM Brilliant puzzles across the board. Thanks Deb! |
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Minfang Lin
Posts: 40
Country : China | I think some hints in "sum or product frame" can be removed, like 15 in col5, 18 in row9, 15 in col9, 18 in col1, 10 in row8, 10 in row4, and the puzzle has unique solution too.
But maybe it will make participator much easier to find the point :)
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debmohanty
Country : India | Minfang Lin - 2011-12-19 1:50 PM
I think some hints in "sum or product frame" can be removed, like 15 in col5, 18 in row9, 15 in col9, 18 in col1, 10 in row8, 10 in row4, and the puzzle has unique solution too.
But maybe it will make participator much easier to find the point :)
The original puzzle didn't have the 4 inside clues. But then it was much harder. I added those 4 hints after Zoltan's testing, but I didn't check if I should remove some of the outside hints.
The score page has some bugs - points for Linked Mini is not computed for all, motris' row shows 0/18, and some players' score is missing completely. Allow me few hours to make the score page public after I fix the bugs. |
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prasanna16391
Posts: 1801
Country : India | Can someone post the solution to Outside Killer, if the test is now over? I'm really getting muddled up somewhere, even though I feel I've used solid logic am getting a column repeat.
As for the test, some really nice Sudokus. My best rank on LMI, so I'm quite happy with my performance even though I can still improve(my classics speed is horrible, believe it or not I took 3 min each for both the 25 point classic and the 80 point Nonconsecutive killer [:s] ). |
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debmohanty
Country : India | prasanna16391 - 2011-12-19 5:37 PM
Can someone post the solution to Outside Killer, if the test is now over?
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debmohanty
Country : India | Results are public now - Congratulations to janoslaw for winning Best of LMI Mocks. motris is close 2nd. Nikola takes the third position and also wins Serbian Championship.
Rohan, Prasanna and Tejal take the top 3 Indian ranks.
199 players participated, out of which 173 players submitted at least one sudoku correctly.
There were way too many submission mistakes this time, possibly because there were so many sudokus (usually we have 12, but this time we had 18). There is some leniency in accepting typos which in other tests had been rejected straightaway.
Thanks to Zoltan for all his help before/during/after the test, and also to Umit for creating a nice logo. |
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Minfang Lin
Posts: 40
Country : China | I wrote the steps of sum or product frame here.
And it seems 10 for r8c123 and 24 for r789c6 did not be used.
Maybe it will become a harder puzzle.
I like the logic in Block9 that r7c789,r8c789,r9c789 only one is product. |
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prasanna16391
Posts: 1801
Country : India | debmohanty - 2011-12-19 5:47 PM
prasanna16391 - 2011-12-19 5:37 PM
Can someone post the solution to Outside Killer, if the test is now over?
Thanks, I got where I went wrong : ) Silly error of eliminating the 1 in R6C6 for no reason. Edited by prasanna16391 2011-12-19 7:07 PM
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