Thread - Indian Puzzle Championship

@ 2011-06-05 10:58 PM (#4713 - in reply to #4710) (#4713) Top

Posts: 23

Country : India

zalak posted @ 2011-06-05 10:58 PM

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!

@ 2011-06-06 6:49 PM (#4740 - in reply to #2876) (#4740) Top

swaroop2011

Posts: 668

Country : India

swaroop2011 posted @ 2011-06-06 6:49 PM

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

@ 2011-06-07 1:20 AM (#4750 - in reply to #2876) (#4750) Top

Organisers

Posts: 175

Country : India

Organisers posted @ 2011-06-07 1:20 AM

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

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

@ 2011-06-07 6:06 PM (#4754 - in reply to #2876) (#4754) Top

utkaarsh

Posts: 89

Country : India

utkaarsh posted @ 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

@ 2011-06-07 6:18 PM (#4755 - in reply to #4754) (#4755) Top

debmohanty

Country : India

debmohanty posted @ 2011-06-07 6:18 PM

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.

@ 2011-06-07 6:19 PM (#4756 - in reply to #2876) (#4756) Top

debmohanty

Country : India

debmohanty posted @ 2011-06-07 6:19 PM

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.

@ 2011-06-07 6:32 PM (#4757 - in reply to #2876) (#4757) Top

utkaarsh

Posts: 89

Country : India

utkaarsh posted @ 2011-06-07 6:32 PM

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,

@ 2011-06-07 6:41 PM (#4758 - in reply to #4757) (#4758) Top

debmohanty

Country : India

debmohanty posted @ 2011-06-07 6:41 PM

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.

@ 2011-06-07 9:21 PM (#4759 - in reply to #2876) (#4759) Top

swaroop2011

Posts: 668

Country : India

swaroop2011 posted @ 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?

@ 2011-06-07 10:26 PM (#4761 - in reply to #4759) (#4761) Top

debmohanty

Country : India

debmohanty posted @ 2011-06-07 10:26 PM

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.

@ 2011-06-07 10:34 PM (#4762 - in reply to #2876) (#4762) Top

swaroop2011

Posts: 668

Country : India

swaroop2011 posted @ 2011-06-07 10:34 PM

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

@ 2011-06-08 7:35 PM (#4778 - in reply to #2876) (#4778) Top

davmillar

Posts: 44

Country : United States

davmillar posted @ 2011-06-08 7:35 PM

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

@ 2011-06-08 7:41 PM (#4779 - in reply to #2876) (#4779) Top

debmohanty

Country : India

debmohanty posted @ 2011-06-08 7:41 PM

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

@ 2011-06-08 9:53 PM (#4780 - in reply to #4779) (#4780) Top

vopani

Posts: 739

Country : India

vopani posted @ 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...

@ 2011-06-08 10:07 PM (#4781 - in reply to #4780) (#4781) Top

Organisers

Posts: 175

Country : India

Organisers posted @ 2011-06-08 10:07 PM

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!

@ 2011-06-08 11:59 PM (#4782 - in reply to #4781) (#4782) Top

neerajmehrotra

Posts: 329

Country : India

neerajmehrotra posted @ 2011-06-08 11:59 PM

Organisers - 2011-06-08 10:07 PM

Guesses from others welcome!

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

@ 2011-06-09 9:41 AM (#4783 - in reply to #2876) (#4783) Top

rajeshk

Posts: 542

Country : India

rajeshk posted @ 2011-06-09 9:41 AM

Some of the puzzles for practice can be found as below
Diagonally Magic Squares
http://www.wpcstylepuzzles.com/search/label/Diagonally%20Magic%20Sq...

Every Second Straight
http://www.wpcstylepuzzles.com/search/label/Every%20Second%20Straig...

Trid (This appeared in OAPC Championships)
http://www.wpcstylepuzzles.com/search/label/Trid?max-results=4

Fences
http://www.wpcpuzzlesonline.com/puzzles/slither-links

Kakuro
http://www.wpcpuzzlesonline.com/puzzles/kakuro

Every Second Breakpoint
http://www.wpcpuzzlesonline.com/puzzles/every-second-breakpoint

Tapa
http://www.wpcstylepuzzles.com/search/label/Tapa?max-results=4

Also most of the puzzles can be found at
http://www.janko.at/Raetsel/index.htm

@ 2011-06-09 9:49 AM (#4784 - in reply to #4782) (#4784) Top

vopani

Posts: 739

Country : India

vopani posted @ 2011-06-09 9:49 AM

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 ;)

@ 2011-06-09 6:03 PM (#4796 - in reply to #2876) (#4796) Top

rajeshk

Posts: 542

Country : India

rajeshk posted @ 2011-06-09 6:03 PM

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...

@ 2011-06-09 6:21 PM (#4797 - in reply to #2876) (#4797) Top

sanket

Posts: 17

Country : India

sanket posted @ 2011-06-09 6:21 PM

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

@ 2011-06-09 6:50 PM (#4798 - in reply to #4797) (#4798) Top

Tejal Phatak

Posts: 81

Country : India

Tejal Phatak posted @ 2011-06-09 6:50 PM

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

(TITW.png)

Attachments
----------------

TITW.png (5KB - 0 downloads)

@ 2011-06-09 6:54 PM (#4799 - in reply to #4798) (#4799) Top

debmohanty

Country : India

debmohanty posted @ 2011-06-09 6:54 PM

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.

@ 2011-06-09 7:12 PM (#4800 - in reply to #2876) (#4800) Top

rajeshk

Posts: 542

Country : India

rajeshk posted @ 2011-06-09 7:12 PM

Thanks Deb for quickly clarifying on this.

@ 2011-06-10 11:53 PM (#4801 - in reply to #2876) (#4801) Top

sanket

Posts: 17

Country : India

sanket posted @ 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

@ 2011-06-11 6:23 PM (#4804 - in reply to #4801) (#4804) Top

neerajmehrotra

Posts: 329

Country : India

neerajmehrotra posted @ 2011-06-11 6:23 PM

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.


	@ 2011-06-05 10:58 PM (#4713 - in reply to #4710) (#4713) Top
zalak Posts: 23 Country : India	zalak posted @ 2011-06-05 10:58 PM 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!
	@ 2011-06-06 6:49 PM (#4740 - in reply to #2876) (#4740) Top
swaroop2011 Posts: 668 Country : India	swaroop2011 posted @ 2011-06-06 6:49 PM can any body give a bigger size of puzzle for "FIRST OR LAST" for practise. i am facing sum problem to solve it..
	@ 2011-06-07 1:20 AM (#4750 - in reply to #2876) (#4750) Top
Organisers Posts: 175 Country : India	Organisers posted @ 2011-06-07 1:20 AM Information Booklet (Points table, Round Timings) published - http://logicmastersindia.com/IPC2011/finals.asp Edited by Organisers 2011-06-07 1:22 AM
	@ 2011-06-07 6:06 PM (#4754 - in reply to #2876) (#4754) Top
utkaarsh Posts: 89 Country : India	utkaarsh posted @ 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
	@ 2011-06-07 6:18 PM (#4755 - in reply to #4754) (#4755) Top
debmohanty Country : India	debmohanty posted @ 2011-06-07 6:18 PM 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.
	@ 2011-06-07 6:19 PM (#4756 - in reply to #2876) (#4756) Top
debmohanty Country : India	debmohanty posted @ 2011-06-07 6:19 PM 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.
	@ 2011-06-07 6:32 PM (#4757 - in reply to #2876) (#4757) Top
utkaarsh Posts: 89 Country : India	utkaarsh posted @ 2011-06-07 6:32 PM 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,
	@ 2011-06-07 6:41 PM (#4758 - in reply to #4757) (#4758) Top
debmohanty Country : India	debmohanty posted @ 2011-06-07 6:41 PM 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.
	@ 2011-06-07 9:21 PM (#4759 - in reply to #2876) (#4759) Top
swaroop2011 Posts: 668 Country : India	swaroop2011 posted @ 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?
	@ 2011-06-07 10:26 PM (#4761 - in reply to #4759) (#4761) Top
debmohanty Country : India	debmohanty posted @ 2011-06-07 10:26 PM 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.
	@ 2011-06-07 10:34 PM (#4762 - in reply to #2876) (#4762) Top
swaroop2011 Posts: 668 Country : India	swaroop2011 posted @ 2011-06-07 10:34 PM hey srry for that but i dont know i was thinking something different at that time. it's fine now with that.
	@ 2011-06-08 7:35 PM (#4778 - in reply to #2876) (#4778) Top
davmillar Posts: 44 Country : United States	davmillar posted @ 2011-06-08 7:35 PM 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
	@ 2011-06-08 7:41 PM (#4779 - in reply to #2876) (#4779) Top
debmohanty Country : India	debmohanty posted @ 2011-06-08 7:41 PM Thanks David, I'm sure it will be useful practice to all.
	@ 2011-06-08 9:53 PM (#4780 - in reply to #4779) (#4780) Top
vopani Posts: 739 Country : India	vopani posted @ 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...
	@ 2011-06-08 10:07 PM (#4781 - in reply to #4780) (#4781) Top
Organisers Posts: 175 Country : India	Organisers posted @ 2011-06-08 10:07 PM 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!
	@ 2011-06-08 11:59 PM (#4782 - in reply to #4781) (#4782) Top
neerajmehrotra Posts: 329 Country : India	neerajmehrotra posted @ 2011-06-08 11:59 PM Organisers - 2011-06-08 10:07 PM 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! 20-20.........WE are heading for sudoku premier league...
	@ 2011-06-09 9:41 AM (#4783 - in reply to #2876) (#4783) Top
rajeshk Posts: 542 Country : India	rajeshk posted @ 2011-06-09 9:41 AM Some of the puzzles for practice can be found as below Diagonally Magic Squares http://www.wpcstylepuzzles.com/search/label/Diagonally%20Magic%20Sq... Every Second Straight http://www.wpcstylepuzzles.com/search/label/Every%20Second%20Straig... Trid (This appeared in OAPC Championships) http://www.wpcstylepuzzles.com/search/label/Trid?max-results=4 Fences http://www.wpcpuzzlesonline.com/puzzles/slither-links Kakuro http://www.wpcpuzzlesonline.com/puzzles/kakuro Every Second Breakpoint http://www.wpcpuzzlesonline.com/puzzles/every-second-breakpoint Tapa http://www.wpcstylepuzzles.com/search/label/Tapa?max-results=4 Also most of the puzzles can be found at http://www.janko.at/Raetsel/index.htm
	@ 2011-06-09 9:49 AM (#4784 - in reply to #4782) (#4784) Top
vopani Posts: 739 Country : India	vopani posted @ 2011-06-09 9:49 AM neerajmehrotra - 2011-06-08 11:59 PM 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... 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 ;)
	@ 2011-06-09 6:03 PM (#4796 - in reply to #2876) (#4796) Top
rajeshk Posts: 542 Country : India	rajeshk posted @ 2011-06-09 6:03 PM 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...
	@ 2011-06-09 6:21 PM (#4797 - in reply to #2876) (#4797) Top
sanket Posts: 17 Country : India	sanket posted @ 2011-06-09 6:21 PM okay..is this solution possible for the given 'tiger in the woods' example given in the IB ?
	@ 2011-06-09 6:50 PM (#4798 - in reply to #4797) (#4798) Top
Tejal Phatak Posts: 81 Country : India	Tejal Phatak posted @ 2011-06-09 6:50 PM I think the players want to know if the ending cell can be 'anywhere'. There can be another solution then. (TITW.png) Attachments ---------------- TITW.png (5KB - 0 downloads)
	@ 2011-06-09 6:54 PM (#4799 - in reply to #4798) (#4799) Top
debmohanty Country : India	debmohanty posted @ 2011-06-09 6:54 PM 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.
	@ 2011-06-09 7:12 PM (#4800 - in reply to #2876) (#4800) Top
rajeshk Posts: 542 Country : India	rajeshk posted @ 2011-06-09 7:12 PM Thanks Deb for quickly clarifying on this.
	@ 2011-06-10 11:53 PM (#4801 - in reply to #2876) (#4801) Top
sanket Posts: 17 Country : India	sanket posted @ 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
	@ 2011-06-11 6:23 PM (#4804 - in reply to #4801) (#4804) Top
neerajmehrotra Posts: 329 Country : India	neerajmehrotra posted @ 2011-06-11 6:23 PM 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.