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Unlucky 13 - LMI April Sudoku Test — 1st to 6th April30 posts • Page 1 of 2 • 1 2
@ 2015-03-20 11:25 AM (#18026) (#18026) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2015-03-20 11:25 AM




@ 2015-03-26 7:32 PM (#18103 - in reply to #18026) (#18103) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2015-03-26 7:32 PM


Logic Masters India announces April Sudoku Test — Unlucky 13

Dates : 1st - 6th April

Instruction Booklet & Submission : Link

Author : Rohan Rao

@ 2015-03-26 9:30 PM (#18104 - in reply to #18026) (#18104) Top

mihiryadav



Posts: 27
20
Country : India

mihiryadav posted @ 2015-03-26 9:30 PM

solutions for the IB will be out by.....?
@ 2015-03-26 9:41 PM (#18105 - in reply to #18104) (#18105) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2015-03-26 9:41 PM

mihiryadav - 2015-03-26 9:30 PM

solutions for the IB will be out by.....?
Solutions attached. We will update the IB soon.



Attachments
----------------
Attachments IBSolutions.pdf (50KB - 12 downloads)
@ 2015-03-27 2:53 AM (#18110 - in reply to #18026) (#18110) Top

ghirsch



Posts: 102
100
Country : United States

ghirsch posted @ 2015-03-27 2:53 AM

Will it be possible to solve them online, like in the Mahabharat competitions?
@ 2015-03-27 5:30 AM (#18113 - in reply to #18110) (#18113) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2015-03-27 5:30 AM

ghirsch - 2015-03-27 2:53 AM

Will it be possible to solve them online, like in the Mahabharat competitions?

Yes, online solving will be possible.

We always enable online solving when standard grids with usual rules are involved.
@ 2015-03-27 2:41 PM (#18115 - in reply to #18026) (#18115) Top

David McNeill



Posts: 63
202020
Country : United Kingdom

David McNeill posted @ 2015-03-27 2:41 PM

For the Renban puzzle, I think it would be good to have a precise definition of "group of shaded cells". The example requires cells which touch only diagonally to be considered as part of the same group for a unique solution. As the groups may not always be visually obvious, a tighter definition may help.
@ 2015-03-27 5:29 PM (#18116 - in reply to #18115) (#18116) Top

vopani



Posts: 739
50010010020
Country : India

vopani posted @ 2015-03-27 5:29 PM

David McNeill - 2015-03-27 2:41 PM

For the Renban puzzle, I think it would be good to have a precise definition of "group of shaded cells". The example requires cells which touch only diagonally to be considered as part of the same group for a unique solution. As the groups may not always be visually obvious, a tighter definition may help.

You're right. The instructions can be more specific.
But, we won't make any changes to the IB / PB. I can assure you the 'groups' are very clearly identifiable in the PB.
@ 2015-03-29 11:44 PM (#18122 - in reply to #18116) (#18122) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2015-03-29 11:44 PM


Please note that Unlucky13 starts earlier than the regular start time of LMI tests.

It will start at 10PM IST (GMT +5.30) on 31 March.

Going forward, regular LMI tests (unless explicitly mentioned otherwise) will also start at 10 PM IST - on Fridays.
(effectively 7.5 hours earlier than the current start time)

@ 2015-03-31 10:08 PM (#18132 - in reply to #18122) (#18132) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2015-03-31 10:08 PM

The test has started.
@ 2015-04-01 5:25 AM (#18133 - in reply to #18026) (#18133) Top

achan1058



Posts: 80
20202020
Country : Canada

achan1058 posted @ 2015-04-01 5:25 AM

Are there any tricks to solving these puzzles? Aside from the fact that they are all classics, of course. The reason I asked is that for at least half of puzzles, I have got the answer keys by only solving part of the puzzle.
@ 2015-04-01 9:42 AM (#18134 - in reply to #18133) (#18134) Top

vopani



Posts: 739
50010010020
Country : India

vopani posted @ 2015-04-01 9:42 AM

achan1058 - 2015-04-01 5:25 AM

Are there any tricks to solving these puzzles? Aside from the fact that they are all classics, of course. The reason I asked is that for at least half of puzzles, I have got the answer keys by only solving part of the puzzle.

No tricks, maybe the AKs are badly chosen then. In general, for easy Classics its hard to chose good AKs since people tend to concentrate their solve towards the AKs and get them without solving much.
Anyway, this is just a fun sprint test :-)
@ 2015-04-01 9:42 AM (#18135 - in reply to #18026) (#18135) Top

ghirsch



Posts: 102
100
Country : United States

ghirsch posted @ 2015-04-01 9:42 AM

Haha, that was not at all what I was expecting, but I enjoyed it. Thanks Rohan!
@ 2015-04-01 10:23 AM (#18137 - in reply to #18026) (#18137) Top

swaroop2011




Posts: 668
500100202020
Country : India

swaroop2011 posted @ 2015-04-01 10:23 AM

Awesome refreshing sprint test, Thanks Rohan :) First time felt i gave my best with no pauses and hickups :p .
Of course that was kind of surprise but lesser than last year's 1st april day :p
Enjoyed all puzzles but best was inequality :)
@ 2015-04-01 2:24 PM (#18139 - in reply to #18137) (#18139) Top

kalsgaard



Posts: 4

Country : Denmark

kalsgaard posted @ 2015-04-01 2:24 PM

Surprising and interesting! An excellent idea - especially the "surprise" sudoku ;-)
Thanks Rohan!
Henning Kalsgaard Poulsen
@ 2015-04-01 2:33 PM (#18140 - in reply to #18026) (#18140) Top

manikodi



Posts: 8

Country : India

manikodi posted @ 2015-04-01 2:33 PM

Real surprise...enjoyed thoroughly...:)
@ 2015-04-02 5:48 PM (#18149 - in reply to #18026) (#18149) Top

tamz29



Posts: 225
10010020
Country : Thailand

tamz29 posted @ 2015-04-02 5:48 PM

I wrote sudokuw like these before, so I actually knew from the IB that all the types could potentially be reduced to classics.
Given the test started 1st April, I was expecting exactly this, so I didn't bother printing them out.

Turns out to be a bad choice since solving online is much much slower :(

Oh well, happy April Fools everyone!
@ 2015-04-04 4:31 PM (#18165 - in reply to #18026) (#18165) Top

akash.doulani



Posts: 157
1002020
Country : India

akash.doulani posted @ 2015-04-04 4:31 PM

i am not being able to connect. it says "connecting to server to get status". please help
@ 2015-04-04 6:53 PM (#18167 - in reply to #18026) (#18167) Top

akash.doulani



Posts: 157
1002020
Country : India

akash.doulani posted @ 2015-04-04 6:53 PM

Finally scored full points for the first time. Took me almost 20 minutes to realise that it was all classics in disguise. Wonderful set of puzzles rohan. Was stuck in odd even for quite sometime . i think odd even took me the most time. Quite happy with my performance
@ 2015-04-06 9:26 AM (#18182 - in reply to #18026) (#18182) Top

RALehrer



Posts: 31
20
Country : United States

RALehrer posted @ 2015-04-06 9:26 AM

Such a letdown.
@ 2015-04-06 10:41 AM (#18183 - in reply to #18026) (#18183) Top

Ziti



Posts: 42
2020
Country : United States

Ziti posted @ 2015-04-06 10:41 AM

Aside from struggling with resolving a few of the killer sums (my best type!), I found this to be a pretty brisk solve -- and amusing too. Thanks much Rohan!
@ 2015-04-07 8:35 AM (#18189 - in reply to #18183) (#18189) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2015-04-07 8:35 AM

The April Sudoku test is over now. Overall 255 participants and 101 got bonus points.

Congratulations to jzverina, deu and jaku111 for the podium finish.

Congratulations to the India Top 3 as well: Prakhar, Kishore and Rishi.
@ 2015-04-07 10:31 AM (#18192 - in reply to #18026) (#18192) Top

dp_94



Posts: 25
20
Country : India

dp_94 posted @ 2015-04-07 10:31 AM

All Sudoku's were nice.Starting 15 minutes of the test are quite good for me except the diagonal sudoku but after that I got breakdown in killer sudoku and done some silliness in surprise sudoku which I paid off as 5-6 minutes more to my timings.

This time few players from India only 65 participated since
from the IB its like full variant test but a suprise classic sudoku test.Its good if classic sudoku test like this difficulty held at least a month.

Best thing about the test is the password "LuckyYou".
@ 2015-04-07 5:01 PM (#18196 - in reply to #18026) (#18196) Top

Mamta



Posts: 6

Country : India

Mamta posted @ 2015-04-07 5:01 PM

Not able to start the test
@ 2015-04-07 5:44 PM (#18197 - in reply to #18026) (#18197) Top

sanket.saxena



Posts: 48
2020
Country : India

sanket.saxena posted @ 2015-04-07 5:44 PM

All of the puzzles were extremely nice. After solving 2 puzzles, I checked all off them and got that all puzzles are classics and the most surprisingly was the 'surprise' one that was also a 'classi'c.
By the way happy to finish on 4th from India and first time in top 10 from India in any competition. Could make to the podium if did not do 'diagonal' wrong in first submission.

Edited by sanket.saxena 2015-04-07 5:46 PM
Unlucky 13 - LMI April Sudoku Test — 1st to 6th April30 posts • Page 1 of 2 • 1 2
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