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thats grt news.........

one more thing..... the logo is very cute.....

Please note the puzzle types for Regional Rounds is fixed. It is uploaded in the IPC2011 site.

neerajmehrotra - 2010-12-13 7:48 PM

one more thing..... the logo is very cute.....

Credit for the logos goes mostly to David Millar and also to Amit Sowani!

There was mistake in our part. The regional round IPC 2011 is NOT scheduled at IIT Madras. We've updated the schedule.

Note that ISC 2011 is scheduled at IIT Madras.

Online Practice Test - Link

Error in sample answer in 'dl.asp' pdf file

Sir in weight problem answer should be 25413 instead of 25134 as

weight 4 is in upper row as compare to 1 & 3...

Plz clarify....

"Enter the digits in the pans from left to right top to bottom"
Answers should be entered left to right first. If two weights are lying vertically up and down, they should entered top to bottom.
The sample answer is correct.

the answer key in battleship is asking 10 digits but we have only 8 digits to fill....
similarly the answer key in simple loop finder is asking 7 digits and even after filling 7 digits its indicating red...

Results - After you complete the test, you can view your score at http://logicmastersindia.com/IPC2011/pot_score.asp

If some puzzle is marked wrong for you, and you think it is correct, please post the puzzle name here. Don't post the answer.

Edited by Organisers 2010-12-19 5:38 PM

I have taken practice test thru LMI login. Wanted to know, it LMI users will be considered for IITB qualification, or they need to attempt it again.

What is the difference between the "official results" http://logicmastersindia.com/IPC2011/pot_score.asp and "all results" http://logicmastersindia.com/IPC2011/pot_score.asp?showall=true

There is also a difference for the scores shown. In the official results, my score (from my techfest id) is shown to be 0/0 (ie i did not attempt anything). But if I check all results, my correct scores (and the answers which i submitted) are displayed correctly.

The official results considers only the submissions till 4pm, since that was the scheduled end of official timings.

huh...i don't remember reading it anywhere...on the techfest site too it just states that it'll start at 2pm...and on the LMI page, it was written "Submit before 12/20/2010 2:00:00 PM"
atleast it should have been written somewhere properly...

jjs - 2010-12-21 10:50 PM

huh...i don't remember reading it anywhere...on the techfest site too it just states that it'll start at 2pm...and on the LMI page, it was written "Submit before 12/20/2010 2:00:00 PM"
atleast it should have been written somewhere properly...

I think it was very clearly mentioned on the test page..........
u still hv a chance to participate in the offline event...

I had submitted 8 puzzles.. but it's showing only 3 on the result page and points have been given only for those 3 puzzles.. what about the remaining puzzles?

neerajmehrotra - 2010-12-21 11:56 PM

I think it was very clearly mentioned on the test page..........
u still hv a chance to participate in the offline event...

hmmm....yeah offline round is still der...
bt all i rem written on the test pg ws submit before 20/12/2010 2pm.....nthn abt the "official" timings...

Edited by jjs 2010-12-22 11:28 AM

ashwinibc - 2010-12-22 11:10 AM

I had submitted 8 puzzles.. but it's showing only 3 on the result page and points have been given only for those 3 puzzles.. what about the remaining puzzles?

3 puzzles are submitted within official end time. Remaining 5 puzzles submitted after official end time.
You can check all your submissions here

jjs - 2010-12-22 11:26 AM
hmmm....yeah offline round is still der...
bt all i rem written on the test pg ws submit before 20/12/2010 2pm.....nthn abt the "official" timings...

Before the test started we had it "19/12/2010 4pm".
Later we changed it to "20/12/2010 2pm" so that people can practice.
If you are serious about the championship, you should ask your questions before the test.
No 'official' test can be open for 24 hours.

And please write in English.

As everyone would have noticed, there are 15 types of Puzzles appeared in the practice test.
In each of the regional prelims rounds, 10 of the 15 types will appear.
In each of the regional final round, 10 of the 15 types will appear.
The types in these 2 round will differ. But there won't be any new types than what appeared in the practice test.

LMI will not release any booklet for these regional rounds.

Edited by Organisers 2011-01-03 10:59 AM

Will the online round also contain these 15 types only (both for sudoku and puzzle)?I am a student in class XII and therefore wanted to appear for the online rounds.Thanks

sidbee - 2011-01-04 10:18 PM

Will the online round also contain these 15 types only (both for sudoku and puzzle)?I am a student in class XII and therefore wanted to appear for the online rounds.Thanks

Yes.

regarding the regional round held in mumbai on 7-8th jan
there were 10 puzzles for selecting top 40 out of all and for another 10 puzzles for selecting top 8
but for in top 8 round it was just 1 puzzle elimination round. It is like one who was comfortable with closed loop puzzle, he didd it fast and thats it
how can 1 puzzle justify the performance of winner compared to others who might be much better in majority of other types of puzzle compared to the winner

Results for the Techfest contest ?

hey is there any issue if we participate through 2 colleges?
i mean if not selected through one college can we go to other college???

Change in Schedule

MNIT Bhopal dates have been shifted by a week.
Also, the website address for BIT MESRA has changed.

Please check the schedule for details.

when is the sudoku prelims in bangalore?
n when is the natinal online prelims?

ceci710 - 2011-02-06 9:15 AM

when is the sudoku prelims in bangalore?
n when is the natinal online prelims?

Please check schedule

according to the schedule regional round on IPC 2011 was to happen at BITS-Pilani in APOGEE 2011 ,but i came to know that only the regional round of ISC 2011 is taking place,no IPC 2011 regional round is there.please check, whats the matter?

sud - 2011-03-27 2:41 AM

according to the schedule regional round on IPC 2011 was to happen at BITS-Pilani in APOGEE 2011 ,but i came to know that only the regional round of ISC 2011 is taking place,no IPC 2011 regional round is there.please check, whats the matter?

Yes, we came to know about it. We can't do much now (but can only try not to make this happen in next year)
We will increase the number of players from the online round. A post on this will follow soon.

Bangalore date and place finalized - please check updated schedule

Edited by Organisers 2011-03-27 2:10 PM

Date and time for National Online Preliminary Round - please check updated schedule

I have qualified the regional round held at IIT Kanpur.
For the national preliminary round at bangalore, I am not able to give it as we have the end semester examinations in the final week of april .
Cna you help me out iwth the problem?

agvishal - 2011-04-07 5:33 PM

I have qualified the regional round held at IIT Kanpur.
For the national preliminary round at bangalore, I am not able to give it as we have the end semester examinations in the final week of april .
Cna you help me out iwth the problem?

Vishal, if you've already qualified from Kanpur, you don't need to appear in Bangalore regional round OR in Online Prelims.

You've to appear in National finals. Dates for the same is not yet announced.

I have to ask that for the national finals, whether the accomodation and the travelling charges will be provided by you
or we have to manage it on our own.
Do we get any admit card for the finals or there is some other way for identication ?

agvishal - 2011-04-15 1:01 AM

I have to ask that for the national finals, whether the accomodation and the travelling charges will be provided by you
or we have to manage it on our own.

All expenditure for participating in the championship shall be borne by the participant himself. LMI does not take any responsibility whatsoever regarding travelling and accommodation.

how does one participate in national online prelim?

rajiv1964 - 2011-04-15 5:22 PM

how does one participate in national online prelim?

Since you are already registered, no need for fresh registration. Just keep a watch on contest forum and soon you will find a link to the contest page. Just keep pencils, eraser and a printer ready and participate on the specified date and time.

All the best!!!

A very big thanks to Organisers for conducting qualifiers at such a large scale (around 13 offline at college fests and one online qual for others). Looking forward to finals @ amchi Mumbai!

where will be IPC2011 final going to be held ?

Swaroop, and others :

We have not finalized all the details. There are some issues we need to fix before we can decide. We don't want to post half-based information right now.
And like we've always done, the moment we finalize, it will be available in the forum and we'll send out an email to all qualifiers as well.

You might say we are taking a lot of time to decide, but that is the truth.

Edited by Organisers 2011-04-29 8:21 AM

Read more about National Finals here

How do i register for the championship?? I have qualified for the finals..

raunak1991 - 2011-05-08 3:32 PM

How do i register for the championship?? I have qualified for the finals..

You dont need to register again.... simply land up in Bangalore on the scheduled date at the scheduled venue with a copy of the email that you would have received when you qualified...

Rishi

raunak1991 - 2011-05-08 3:32 PM

How do i register for the championship?? I have qualified for the finals..

Raunak, you should have got one email on 21-Feb. I just forwarded the email again.

purifire - 2011-05-08 3:36 PM

You dont need to register again.... simply land up in Bangalore on the scheduled date at the scheduled venue with a copy of the email that you would have received when you qualified...

Rishi

I forgot to mention the Scheduled Time

Rishi

I have qualified through online round held on 24th April. But, yet to receive a official email.

Also is there any paid accommodation facility for National Finals? Or we have find acco by own? It would be nice if organizers can contact DRDO for accommodation. If everyone stay together, it would nice to know other participants and also to learn techniques from others.

aakash - 2011-05-10 12:43 AM

I have qualified through online round held on 24th April. But, yet to receive a official email.

Also is there any paid accommodation facility for National Finals? Or we have find acco by own? It would be nice if organizers can contact DRDO for accommodation. If everyone stay together, it would nice to know other participants and also to learn techniques from others.

Congratulations for getting selected for the National Finals. As already mentioned elsewhere in this forum, it is practically not possible to arrange accommodation for such a large gathering. All participants are requested to make their own arrangements for travel, transport, stay and food.

Dear admin,

I have qualified for the IPC finals.(through online)
But i have not received any email yet.
Mine email id is : swaroop_vjti@yahoo.com

swaroop2011 - 2011-05-11 2:03 PM

Dear admin,

I have qualified for the IPC finals.(through online)
But i have not received any email yet.
Mine email id is : swaroop_vjti@yahoo.com

Swaroop, Did you get email? Your registered email address is different than what you've posted here.

@Organisers, Is there a way to change the registered id?

priygupt - 2011-05-12 11:30 AM

@Organisers, Is there a way to change the registered id?

It is possible. But needs some amount of manual work.

Hi, i won the Sudoku regional round held at Cognizance, IIT Roorkee. However, i haven't received at email yet. My email id is himanshubansal619@gmail.com

Himanshu Bansal - 2011-05-12 12:09 PM

Hi, i won the Sudoku regional round held at Cognizance, IIT Roorkee. However, i haven't received at email yet. My email id is himanshubansal619@gmail.com

Check your email.

Yes,
i recieved the email.
thank you

Edited by swaroop2011 2011-05-12 3:39 PM

Himanshu Bansal - 2011-05-12 12:09 PM

Hi, i won the Sudoku regional round held at Cognizance, IIT Roorkee. However, i haven't received at email yet. My email id is himanshubansal619@gmail.com

List updated.

Sir,
As stated on the website, I haven't received any e-mail on the 11th of May. Could you please clarify on this issue ? My email id is rajgopal89@gmail.com .

R.Rajgopal
BIT Mesra

Edited by raj89 2011-05-13 12:28 PM

raj89 - 2011-05-13 12:27 PM

Sir,
As stated on the website, I haven't received any e-mail on the 11th of May. Could you please clarify on this issue ? My email id is rajgopal89@gmail.com .

R.Rajgopal
BIT Mesra

2 mails were sent to you - one one 21-Feb and again on 11-May. Just forwarded again. Please check and get back.

Hi,

Seems like common issue, I too didn't recieved any email, however I got a mail from Bangalore Coordinator. Please let me know if the printout of that will be enough?

People using gmail. Please check your spam folder. I retrieved the mails from there.

I finished 3rd in the regional round (puzzle category) at IIT Bombay.

At IIT Bombay, we were informed that the top 3 will qualify for the national finals - was relaxed about the whole thing till today when I saw the list of invitations, and found that it did not incorporate this top 3 per region rule.

I was looking at another thread, and it seems that the declaration "top 3 = qualification for nationals" was indeed made elsewhere as well.
(adityasaraf007's post in http://www.logicmastersindia.com/forum/forums/thread-view.asp?tid=2...)

Now, I don't know what to do as I did not participate in the online round either.

Rajib, check your inbox

Hi
Now that the Sudoku Instruction Booklet has come out,When is the Puzzle Instruction Booklet getting released?

I guess it will be out as soon as it is ready

I soo expected this answer.
But was jus praying for something new

sanket - 2011-05-22 2:21 PM

I soo expected this answer.
But was jus praying for something new

Probably we should have delayed releasing Sudoku types booklet by a week

sanket - 2011-05-22 12:42 PM

Hi
Now that the Sudoku Instruction Booklet has come out,When is the Puzzle Instruction Booklet getting released?

List of puzzle types is now uploaded here

Please use this thread for posting questions on types. Do not open new threads.

ABC Connection: Do all cells have to be used, or can some cells remain empty?

Paint-By-Number: Are the clues in the same order as seen from the given direction?

Edited by rakesh_rai 2011-05-28 1:12 PM

So there are no playoffs/eliminators/semis/finals,right?
The total score from all the 38 puzzles across the 3 rounds will be taken into consideration,right?

sanket - 2011-05-28 3:41 PM

So there are no playoffs/eliminators/semis/finals,right?
The total score from all the 38 puzzles across the 3 rounds will be taken into consideration,right?

That is correct.
Time bonus will be added to score.

rakesh_rai - 2011-05-28 12:17 PM

ABC Connection: Do all cells have to be used, or can some cells remain empty?

Paint-By-Number: Are the clues in the same order as seen from the given direction?

ABC Connection - You don't need to know if all cells have to be used to solve the puzzle

Paint-By-Number - Yes, clues are in order. Will change the instruction.

Hi,
In the Queens Park puzzle it is mentioned that "A queen does not block another queen."
Then in that case R2C4 = 4 instead of 3, R2C5 = 5 instead of 4 and R4C4 = 3 instead of 2
I think it should rather say "A queen blocks another queen".

Please verify this.

Thanks
Ravi.

(Queen's Park.JPG)

Attachments
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Queen's Park.JPG (15KB - 0 downloads)

Sorry about that statement "A queen does not block another queen".
It is not necessary, and moreover confusing.

The correct instruction will read
"Place X number of queens into the grid
so that none of them stands on
a number and each number
equals to the number of
directions from which the given
square is attacked by a queen.
A queen attacks to arbitrary
distance horizontally, vertically
and diagonally.
"

It is important to note that the number represents number of directions from which it can be attacked.
It doesn't represent number of queens that can attack the square.

Hope it is clear.

Here is one more example of Queen

Check the 2 at R4C4, it is attacked from 2 directions (doesn't matter how many queens)

In Hexa Seven, it says 'Write numbers between 1 and 7 into the white hexagons so that the neighbours of each white hexagon are all different.'
I think 'Something Is Missing' ;-) (I guess numbers cannot repeat along any line?)

Edited by Rohan Rao 2011-05-30 4:59 PM

Rohan Rao - 2011-05-30 4:55 PM

In Hexa Seven, it says 'Write numbers between 1 and 7 into the white hexagons so that the neighbours of each white hexagon are all different.'
I think 'Something Is Missing' ;-) (I guess numbers cannot repeat along any line?)

5 is repeated across the main horizontal line in the example.

debmohanty - 2011-05-30 5:03 PM

5 is repeated across the main horizontal line in the example.

I misunderstood it. It is correct.

for the Puzzle "TRID", will the range be given or we wil need to identify while sovling the puzzle,
in the example it is not mentioned

Edited by utkaarsh 2011-05-30 7:52 PM

1) AREA OCCUPATION (Filomino)
Is it like size if 4*4 so the numbers used are 1-4.
2)Different Sums
sums by coincidence are 0,1,2,3,4,5,6.
but is it always true or there may be a gap in bigger puzzles like 0,1,2,5,......
3)Tiger in the woods
rule says that path is allowed to take a turn after hitting either a black square or a wall ..
but at r6c3 teh path is changing.. please check it !!!!!

swaroop2011 - 2011-05-30 10:46 PM

1) AREA OCCUPATION (Filomino)
Is it like size if 4*4 so the numbers used are 1-4.

No.
"Size of the grid" and "digits used" aren't related. Btw, I hope you (and others) have checked out Fillomino-Fillia

swaroop2011 - 2011-05-30 10:46 PM
2)Different Sums
sums by coincidence are 0,1,2,3,4,5,6.
but is it always true or there may be a gap in bigger puzzles like 0,1,2,5,......

You are asking me to reveal about the puzzle in the competition. I'm not going to do that.

swaroop2011 - 2011-05-30 10:46 PM
3)Tiger in the woods
rule says that path is allowed to take a turn after hitting either a black square or a wall ..
but at r6c3 teh path is changing.. please check it !!!!!

The outside border also serves as wall.
Here is another example

utkaarsh - 2011-05-30 7:46 PM

for the Puzzle "TRID", will the range be given or we wil need to identify while sovling the puzzle,
in the example it is not mentioned

Range will be mentioned. Missed it putting for the example.

debmohanty - 2011-05-31 5:39 AM

swaroop2011 - 2011-05-30 10:46 PM

1) AREA OCCUPATION (Filomino)
Is it like size if 4*4 so the numbers used are 1-4.

No.
"Size of the grid" and "digits used" aren't related. Btw, I hope you (and others) have checked out Fillomino-Fillia

swaroop2011 - 2011-05-30 10:46 PM
2)Different Sums
sums by coincidence are 0,1,2,3,4,5,6.
but is it always true or there may be a gap in bigger puzzles like 0,1,2,5,......

You are asking me to reveal about the puzzle in the competition. I'm not going to do that.

The outside border also serves as wall.
Here is another example

hey deb,
FOR TIGER IN THE WOODS
in the puzzle booklet the point where it is changing is hitting the path not the wall.[r6c3]

Swaroop, I guess in the IB example, the path starts from the circle and not from the other end.

Swaroop, the path starts at R3C1 as Tejal mentioned. Also the boundary wall is missing from the image, if that is your point.
Here is the redrawn image

Note that in the championship it is not necessary to mark the start or end. If the path correctly is drawn, you will get full points.

hey thanks deb,
in the IB the start point is given at r4c5 and circle is given at r3c1 thats why it was confusing..(in solution). now its very clear with above image.

1)FOUR SNAILS
i think it can have multiple solutions...
the N of newyork is possible at r5c1,r4c1 and r6c1.
also the N and S of athens can be placed in r4c4,r4c5,r4c6,r5c5,r5c6 differently..

2)NEWS

in the solution it is given wrong and i am not getting proper solution..
in r2c3 it is W and r1c4 it is E but the rule says " directions in region should satisfy their positions with respect to each other"..
please clarify it..??

swaroop2011 - 2011-05-31 6:12 PM

1)FOUR SNAILS
i think it can have multiple solutions...
the N of newyork is possible at r5c1,r4c1 and r6c1.
also the N and S of athens can be placed in r4c4,r4c5,r4c6,r5c5,r5c6 differently..

I think you are missing the given "-"
There are dashes at R5C1 R5C5
You can't put a letter where dash is already present

debmohanty - 2011-05-31 6:16 PM

I think you are missing the given "-"
There are dashes at R5C1 R5C5
You can't put a letter where dash is already present

hey srry for that it was not visible in my print out ..
and what about four snails?

swaroop2011 - 2011-05-31 6:23 PM
and what about four snails?

The puzzle, solution and rules match perfectly to me.

debmohanty - 2011-05-31 6:26 PM

swaroop2011 - 2011-05-31 6:23 PM
and what about four snails?

The puzzle, solution and rules match perfectly to me.

can u clarify how the region r1c3,r1c4,r2c3 satisfies the rules please..!

Swaroop, in "NEWS"... For W-E, it need not necessarily be in the same row. In a specific region, if you are to place W-E, just make sure W is on the left hand-side and E on the right hand-side. It may or may not be in the same row. Similarly, if you see R2C4 and R3C5, N-S they are not placed in the same column.

I hope that answers your doubt.

Tejal Phatak - 2011-05-31 6:39 PM

Swaroop, in "NEWS"... For W-E, it need not necessarily be in the same row. In a specific region, if you are to place W-E, just make sure W is on the left hand-side and E on the right hand-side. It may or may not be in the same row. Similarly, if you see R2C4 and R3C5, N-S they are not placed in the same column.

I hope that answers your doubt.

ya thank you..so it's similar for W and S /N and E ..

Will the puzzles in the Final be exactly as shown in the Puzzle Types booklet, or will there also be variations of those mentioned?
Also, will there be only one puzzle per type, or a range of different sizes/variations?

Puzzle types will be exactly same. No more variations of even those mentioned.
In Round1 and Round2, there will be 1 puzzle from each type.
In Round3, there will be 2 puzzles from each type, one easy and one not-so

We'll publish an Information Booklet which will specify all these and the points distribution. It will take few days.

Organisers - 2011-05-28 3:45 PM

rakesh_rai - 2011-05-28 12:17 PM

ABC Connection: Do all cells have to be used, or can some cells remain empty?

Paint-By-Number: Are the clues in the same order as seen from the given direction?

ABC Connection - You don't need to know if all cells have to be used to solve the puzzle

Paint-By-Number - Yes, clues are in order. Will change the instruction.

I had the same question for Anglers - Do all the cells have to be used or some may remain empty?

Is the answer same? ;)

@Zalak
Count the sum of given digits outside. If its equal to the number of cells, then no blank cells :D

Rohan Rao - 2011-06-05 9:29 PM

@Zalak
Count the sum of given digits outside. If its equal to the number of cells, then no blank cells :D

wow, thanks! never thought about it!

can any body give a bigger size of puzzle for "FIRST OR LAST" for practise.
i am facing sum problem to solve it..

Information Booklet (Points table, Round Timings) published - http://logicmastersindia.com/IPC2011/finals.asp

Edited by Organisers 2011-06-07 1:22 AM

For Rd 2 , the grid sizes are given in IB , can the grid size be shared for atleast the easy puzzles in Rd 3 and Rd 1 puzzles

utkaarsh - 2011-06-07 6:06 PM

For Rd 2 , the grid sizes are given in IB , can the grid size be shared for atleast the easy puzzles in Rd 3 and Rd 1 puzzles

The reason it is specified for Round2 is because I had to explain the partial points. Otherwise I wouldn't have mentioned that.

I can do that for Round1/3, but will it be really useful for you in planning / making a strategy, I'll do that. let me know.

Oh wait... may be I can't.
Many participants don't read forum, and it will be unfair to publish something about the puzzles here.
Sorry.

As such, if we publish the grid sizes beforehand, it will probably be first of its kind.

Since, i am new to puzzles, wanted to pick and choose which to concentrate on , like points grid size also indicate the complexity of a puzzle,
The grid sizes /range in some cases are surely useful, frameless sudoku, different sums, where combinations are needed
Also if posting in forum is a concern, updated IB is as an option ,open to other view points,

I must be sleeping when I wrote that we can't publish here. Obviously, as you said, we can update the IB

Utkaarsh, let me emphasize that the grid size will not reveal anything about puzzle complexity. As a sample, if I say the Frameless sudoku is 9X9, it doesn't signify anything about its complexity. It is only points that tell you more about difficulty.

For players who are new to puzzles, it is important to form a strategy to solve the types you are more comfortable with, irrespective of the grid size or points.

in "LIGHT UP"
is there any restriction on number of bulbs(as not mentioned in rules).
is it like minimum possible bulbs?

swaroop2011 - 2011-06-07 9:21 PM

in "LIGHT UP"
is there any restriction on number of bulbs(as not mentioned in rules).
is it like minimum possible bulbs?

Come on Swaroop, it is a standard puzzle, with standard instructions. I've no idea why you are confused.

hey srry for that but i dont know i was thinking something different at that time.
it's fine now with that.

Hey everyone. Today on The Griddle I posted a new puzzle that may serve as good practice for the masyu-fence puzzle:

Shotgun Slitherlink

In this variation there's one additional twist: all the numeric clues consist of a 2 directly to the left of a 3, to form several instances of "23" throughout the grid. Every place that a 23 can legally be placed in the grid, the clues are given.

I also have additional masyu-fence puzzles (that I call "shotgun slitherlink") on my site which you can find here.

Happy puzzling!

Edited by davmillar 2011-06-08 7:36 PM

Thanks David, I'm sure it will be useful practice to all.

Any particular reason puzzles of Round 2 are 20x20? I understand the concept is big grids, but was 20 chosen as a random round figure or does it have any significance? Just for trivia sake...

Rohan Rao - 2011-06-08 9:53 PM

Any particular reason puzzles of Round 2 are 20x20? I understand the concept is big grids, but was 20 chosen as a random round figure or does it have any significance? Just for trivia sake...

Guesses from others welcome!

Organisers - 2011-06-08 10:07 PM

Guesses from others welcome!

20-20.........WE are heading for sudoku premier league...

neerajmehrotra - 2011-06-08 11:59 PM

20-20.........WE are heading for sudoku premier league...

20 puzzles in Round1, 20x20 size grids in Round2, 20 puzzles in Round3, I knew something was up!
The Nov-2011 WPC in Hungary is the 20th WPC, so thats why. And also because I am 20 years old ;)

Tiger in the Woods
One rule I wanted to confirm that, can the ending square be in the middle or it should always be touching a wall?
e.g. attaching the puzzles from Brazil Puzzle Championship where ending square is not touching the wall or black square.
See the following answer booklet
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=12...

okay..is this solution possible for the given 'tiger in the woods' example given in the IB ?

I think the players want to know if the ending cell can be 'anywhere'. There can be another solution then.

(TITW.png)

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TITW.png (5KB - 0 downloads)

This is not allowed. The path can stop only near the wall or a black square.
Also, the end point must not have visited earlier.

Thanks Deb for quickly clarifying on this.

Personally speaking,Im finding 'First or Last' completely unsolvable !
Cant even figure how to start the sample puzzle
Can anyone throw some light? (i know its too late,yet just an attempt)
Thanks anyway.
All the best everyone

sanket - 2011-06-10 11:53 PM

Personally speaking,Im finding 'First or Last' completely unsolvable !
Cant even figure how to start the sample puzzle
Can anyone throw some light? (i know its too late,yet just an attempt)
Thanks anyway.
All the best everyone

Look at all rows and coloumns with A and B as clues.....
means R1, R2, C2, C4
C cannot be placed in 1 and last cells of these rows and columns...
with this C cannot be placed in R1C1, R1C4, R2C1, R2C4 therefore in first two rows C has to be in second and third column.
Again with the same logic C cannot be placed at R1C2, thus place C at R1C3 & R2C2.....
Now its simple.

hey thanks for explanation neeraj :)

sanket - 2011-06-11 6:51 PM

hey thanks for explanation neeraj :)

Hope it helped...

I was solving the puzzles of Offline finals Round 3. I managed to solve all except NEWS (I tried the small one only, without success) and the big frameless (which I will need to solve on paper). Overall, very nice puzzles. For me, the best of the lot were the polyword (took a lot of time for solving), creek (elegant solution) and digit battleships (nice play with numbers) - the bigger grid in each case.

I hope someone can help with some baby steps for the small grid of NEWS.

rakesh_rai - 2011-06-15 1:55 PM

I was solving the puzzles of Offline finals Round 3. I managed to solve all except NEWS (I tried the small one only, without success) and the big frameless (which I will need to solve on paper). Overall, very nice puzzles. For me, the best of the lot were the polyword (took a lot of time for solving), creek (elegant solution) and digit battleships (nice play with numbers) - the bigger grid in each case.

I hope someone can help with some baby steps for the small grid of NEWS.

Hi Rakesh,

According to me, you are not thinking :-)

1: Look at the R2C5-R3C4-R3C5 region. It cannot have 'W' and 'N'. So 'E' will be in R2C5 and 'S' in R3C4.
2: Exactly similarly, the R4C3-R5C2-R5C3 region will have 'E' in R4C3 and 'S' in R5C2.
3: The square region with 'W' has to have a 'N' in R2C3.
4: The R3C1-R4C1-R4C2 region cannot have 'E' and 'W'. Hence R3C1 is 'N' and R4C1 is 'S'.

You should be able to complete it now.

Thanks Rohan.

I was actually thinking

...but I had not interpreted the rules correctly (even though this topic was discussed earlier)...I was thinking that a S can come below a W... I thought the only constraints are that W should be to the left of E and N should be above S...but thats not correct...I should be able to solve it now.