Thread - Diagonal Vision — LMI March Sudoku Test

@ 2012-03-01 5:31 AM (#6818 - in reply to #6774) (#6818) Top

Administrator

Country : India

Administrator posted @ 2012-03-01 5:31 AM

Logic Masters India announces March 2012 Sudoku Test — Diagonal Vision

Dates : 10^th - 12^th March

Length : 120 minutes

IB and Submission Link : http://logicmastersindia.com/M201203S/

Author : Frédéric Stalder

@ 2012-03-01 10:21 AM (#6824 - in reply to #6774) (#6824) Top

debmohanty

Country : India

debmohanty posted @ 2012-03-01 10:21 AM

It is bit of coincidence that Fred has authored another set, exactly after a year

The theme is really nice. All the types gel well as a set, but have lot of diversity while solving. I particularly like Diagonal outside sudoku

@ 2012-03-01 3:30 PM (#6825 - in reply to #6824) (#6825) Top

Nikola

Posts: 103

Country : Serbia

Nikola posted @ 2012-03-01 3:30 PM

To be well prepared for the test, I have to start to live diagonally. From now my keyboard is slightly slanted, I walk in a zig-zag, cross the street only diagonally and please tell everyone who see me in the car these days to slow down.

N
..i
...k
.....o
.......l
........a

@ 2012-03-01 4:43 PM (#6826 - in reply to #6774) (#6826) Top

xevs

Posts: 43

Country : Japan

xevs posted @ 2012-03-01 4:43 PM

In battle arrow sudoku, it seems that "all possible arrows IN NON-CLUED CELLS are shown".
Is that right?

@ 2012-03-01 7:10 PM (#6828 - in reply to #6826) (#6828) Top

Fred76

Posts: 337

Country : Switzerland

Fred76 posted @ 2012-03-01 7:10 PM

xevs - 2012-03-01 4:43 PM

In battle arrow sudoku, it seems that "all possible arrows IN NON-CLUED CELLS are shown".
Is that right?

No, it's not right.
All possible arrows are shown.
But don't forget that there is an arrow only if a digit repeats EXACTLY ONCE in a given direction. If a digit repeats twice or more, there is no arrow.

The fact that there is no arrow in clued cells on the example grid is only for aesthetic reasons.

Fred

@ 2012-03-01 11:46 PM (#6829 - in reply to #6825) (#6829) Top

Fred76

Posts: 337

Country : Switzerland

Fred76 posted @ 2012-03-01 11:46 PM

Nikola - 2012-03-01 3:30 PM

To be well prepared for the test, I have to start to live diagonally. From now my keyboard is slightly slanted, I walk in a zig-zag, cross the street only diagonally and please tell everyone who see me in the car these days to slow down.

N
..i
...k
.....o
.......l
........a

Indeed: It's a good strategy if you want to have a chance to win this tournament

@ 2012-03-02 1:33 AM (#6830 - in reply to #6828) (#6830) Top

xevs

Posts: 43

Country : Japan

xevs posted @ 2012-03-02 1:33 AM

Oops, I see clearly now.
I had to read the rule carefully. (of course, that is another very important stratagy to win tournaments ;-) )

@ 2012-03-02 6:08 AM (#6831 - in reply to #6828) (#6831) Top

Administrator

Country : India

Administrator posted @ 2012-03-02 6:08 AM

French version of the instruction booklet is available - Download | View

@ 2012-03-02 9:33 AM (#6832 - in reply to #6831) (#6832) Top

vopani

Posts: 739

Country : India

vopani posted @ 2012-03-02 9:33 AM

I find it convenient when the diagonal lines of Anti Diagonal are given. It doesn't matter much but maybe if others prefer it too, it could be added.

Looking forward to a 'sudoku' test (after more than a month).

@ 2012-03-02 12:18 PM (#6834 - in reply to #6825) (#6834) Top

prasanna16391

Posts: 1801

Country : India

prasanna16391 posted @ 2012-03-02 12:18 PM

M
..e

....t
......o
........o

^^ because my actual name slanted would take far too much space. I'm looking forward to this too. I wonder if Fred has tried the revenge methods we talked about on facebook...

@ 2012-03-02 1:17 PM (#6835 - in reply to #6828) (#6835) Top

purifire

Posts: 460

Country : India

purifire posted @ 2012-03-02 1:17 PM

First of all... great looking grids Fred.... will be nice to make a comeback to LMI test with your test....

And here is some news for solvers which is not related to this test!!!

Adobe PDF Reader X is the new free product from Adobe. It allows you to add text directly to a pdf. People like me who have printer issues can now open the pdf and solve directly instead of creating grids or pasting in ms paint and then solving. The link for download is added below.

I know that LMI already has an online interface for sudoku. But this is helpful for puzzle tests and other sudoku competitions around the globe where printing is needed. Hope this is helpful to ppl.

Adobe PDF Reader X

Rishi

Edited by purifire 2012-03-02 1:19 PM

@ 2012-03-02 9:44 PM (#6836 - in reply to #6834) (#6836) Top

Fred76

Posts: 337

Country : Switzerland

Fred76 posted @ 2012-03-02 9:44 PM

prasanna16391 - 2012-03-02 12:18 PM

I wonder if Fred has tried the revenge methods we talked about on facebook...

Haha ! Grids were hard enough ! I didn't to try to make them harder

Last time we authored a test at LMI ( http://logicmastersindia.com/lmitests/?test=M201103S ) nobody achieve to finish all the grids correctly in time, so this time I hope it'll not be the case

Untouch sudokus that I posted on my blog last week were initially planned as 13th grid for this test: http://sudokuvariante.blogspot.com/search/label/Untouch (untouch N°1 for the IB and untouch N°2 for the test).

Fred

@ 2012-03-03 2:46 AM (#6837 - in reply to #6832) (#6837) Top

debmohanty

Country : India

debmohanty posted @ 2012-03-03 2:46 AM

Rohan Rao - 2012-03-02 9:33 AM
I find it convenient when the diagonal lines of Anti Diagonal are given. It doesn't matter much but maybe if others prefer it too, it could be added.

Google search for Anti Diagonal Sudoku showed this link at the top - http://rohanrao.blogspot.in/2010/03/rules-of-anti-diagonal-sudoku.h...

@ 2012-03-03 2:48 AM (#6838 - in reply to #6832) (#6838) Top

Fred76

Posts: 337

Country : Switzerland

Fred76 posted @ 2012-03-03 2:48 AM

Rohan Rao - 2012-03-02 9:33 AM

I find it convenient when the diagonal lines of Anti Diagonal are given. It doesn't matter much but maybe if others prefer it too, it could be added.

Looking forward to a 'sudoku' test (after more than a month).

All players can answer the poll in the beginning of this thread.

From my point of view it does not matter, but as I don't play, I'll not answer the poll.
Rohan, I noticed that anti-diagonal that are on your blog have no diagonal lines given

. But I can add them if a majority of players want, there is no problem for me.

Fred

@ 2012-03-03 5:41 AM (#6839 - in reply to #6837) (#6839) Top

Fred76

Posts: 337

Country : Switzerland

Fred76 posted @ 2012-03-03 5:41 AM

debmohanty - 2012-03-03 2:46 AM

Rohan Rao - 2012-03-02 9:33 AM
I find it convenient when the diagonal lines of Anti Diagonal are given. It doesn't matter much but maybe if others prefer it too, it could be added.

Google search for Anti Diagonal Sudoku showed this link at the top - http://rohanrao.blogspot.in/2010/03/rules-of-anti-diagonal-sudoku.h...

Yes, but we must admit that this guy, Mister Rohanrao Blogspot, doesn't look very serious ! Does anybody know him ?

@ 2012-03-03 7:35 AM (#6840 - in reply to #6774) (#6840) Top

zachpuzzle

Posts: 14

Country : United States

zachpuzzle posted @ 2012-03-03 7:35 AM

This will be the first sudoku test that i participate instead of doing afterward so i am so excited

@ 2012-03-03 10:07 AM (#6841 - in reply to #6840) (#6841) Top

vopani

Posts: 739

Country : India

vopani posted @ 2012-03-03 10:07 AM

Ok people. I lose.

There's been some major problem with my blog (which is supposed to be resolved by 1st week of March), so I'm hoping to start posting again from Monday :-)

@ 2012-03-03 11:30 AM (#6842 - in reply to #6839) (#6842) Top

prasanna16391

Posts: 1801

Country : India

prasanna16391 posted @ 2012-03-03 11:30 AM

Fred76 - 2012-03-03 5:41 AM

Yes, but we must admit that this guy, Mister Rohanrao Blogspot, doesn't look very serious ! Does anybody know him ?

I'm not sure.. I think he's some foreigner...

Rohan Rao - 2012-03-03 10:07 AM

Ok people. I lose.

There's been some major problem with my blog (which is supposed to be resolved by 1st week of March), so I'm hoping to start posting again from Monday :-)

Looking forward to it Mister Rohanrao Blogspot.

@ 2012-03-03 2:52 PM (#6843 - in reply to #6840) (#6843) Top

Fred76

Posts: 337

Country : Switzerland

Fred76 posted @ 2012-03-03 2:52 PM

zachpuzzle - 2012-03-03 7:35 AM

This will be the first sudoku test that i participate instead of doing afterward so i am so excited

Great !

@ 2012-03-05 12:08 AM (#6844 - in reply to #6774) (#6844) Top

prasanna16391

Posts: 1801

Country : India

prasanna16391 posted @ 2012-03-05 12:08 AM

Should've kept "no" and "does not matter" as two separate options in the poll, now the people who wanted it might get out voted by people to whom it didn't matter. Of course this is in hindsight, it just struck me.

@ 2012-03-06 9:11 AM (#6848 - in reply to #6774) (#6848) Top

Administrator

Country : India

Administrator posted @ 2012-03-06 9:11 AM

Examples Online

All examples are available online now. Please check the submission page, and report any inconvenience.

@ 2012-03-07 1:59 PM (#6853 - in reply to #6774) (#6853) Top

David McNeill

Posts: 63

Country : United Kingdom

David McNeill posted @ 2012-03-07 1:59 PM

Hope to participate in this test. Is it possible to mark the arrows in a paler colour in Arrows Battle Sudoku?

Thank you,

David McNeill.

@ 2012-03-07 2:55 PM (#6854 - in reply to #6853) (#6854) Top

Fred76

Posts: 337

Country : Switzerland

Fred76 posted @ 2012-03-07 2:55 PM

David McNeill - 2012-03-07 1:59 PM

Hope to participate in this test. Is it possible to mark the arrows in a paler colour in Arrows Battle Sudoku?

Thank you,

David McNeill.

Done for the test grid !

Fred

@ 2012-03-09 3:05 AM (#6856 - in reply to #6854) (#6856) Top

Fred76

Posts: 337

Country : Switzerland

Fred76 posted @ 2012-03-09 3:05 AM

As there is a big majority in the poll who said that it were not better to have marked diagonal in the anti-diagonal sudoku (or it does not matter) , I'll not add them.
Sorry for the 7 people who voted for marked diagonals in the anti-diagonal sudoku, I hope you'll have fun solving this grid despite that.

Fred

@ 2012-03-09 4:03 AM (#6857 - in reply to #6856) (#6857) Top

Para

Posts: 315

Country : The Netherlands

Para posted @ 2012-03-09 4:03 AM

Fred76 - 2012-03-09 3:05 AM

As there is a big majority in the poll who said that it were not better to have marked diagonal in the anti-diagonal sudoku (or it does not matter) , I'll not add them.
Sorry for the 7 people who voted for marked diagonals in the anti-diagonal sudoku, I hope you'll have fun solving this grid despite that.

Fred

I just find it handier to know any marked diagonal means different digits.

Should the diagonals be marked in the "Anti-Diagonal Sudoku"?
Will it be better if the diagonals be marked in the "Anti-Diagonal Sudoku"?
Option	Results
Yes, it will be much better	8 Votes - [22.86%]
No / does not matter	27 Votes - [77.14%]

View Results


	@ 2012-03-01 5:31 AM (#6818 - in reply to #6774) (#6818) Top
Administrator Country : India	Administrator posted @ 2012-03-01 5:31 AM Logic Masters India announces March 2012 Sudoku Test — Diagonal Vision Dates : 10^th - 12^th March Length : 120 minutes IB and Submission Link : http://logicmastersindia.com/M201203S/ Author : Frédéric Stalder
	@ 2012-03-01 10:21 AM (#6824 - in reply to #6774) (#6824) Top
debmohanty Country : India	debmohanty posted @ 2012-03-01 10:21 AM It is bit of coincidence that Fred has authored another set, exactly after a year The theme is really nice. All the types gel well as a set, but have lot of diversity while solving. I particularly like Diagonal outside sudoku
	@ 2012-03-01 3:30 PM (#6825 - in reply to #6824) (#6825) Top
Nikola Posts: 103 Country : Serbia	Nikola posted @ 2012-03-01 3:30 PM To be well prepared for the test, I have to start to live diagonally. From now my keyboard is slightly slanted, I walk in a zig-zag, cross the street only diagonally and please tell everyone who see me in the car these days to slow down. N ..i ...k .....o .......l ........a
	@ 2012-03-01 4:43 PM (#6826 - in reply to #6774) (#6826) Top
xevs Posts: 43 Country : Japan	xevs posted @ 2012-03-01 4:43 PM In battle arrow sudoku, it seems that "all possible arrows IN NON-CLUED CELLS are shown". Is that right?
	@ 2012-03-01 7:10 PM (#6828 - in reply to #6826) (#6828) Top
Fred76 Posts: 337 Country : Switzerland	Fred76 posted @ 2012-03-01 7:10 PM xevs - 2012-03-01 4:43 PM In battle arrow sudoku, it seems that "all possible arrows IN NON-CLUED CELLS are shown". Is that right? No, it's not right. All possible arrows are shown. But don't forget that there is an arrow only if a digit repeats EXACTLY ONCE in a given direction. If a digit repeats twice or more, there is no arrow. The fact that there is no arrow in clued cells on the example grid is only for aesthetic reasons. Fred
	@ 2012-03-01 11:46 PM (#6829 - in reply to #6825) (#6829) Top
Fred76 Posts: 337 Country : Switzerland	Fred76 posted @ 2012-03-01 11:46 PM Nikola - 2012-03-01 3:30 PM To be well prepared for the test, I have to start to live diagonally. From now my keyboard is slightly slanted, I walk in a zig-zag, cross the street only diagonally and please tell everyone who see me in the car these days to slow down. N ..i ...k .....o .......l ........a Indeed: It's a good strategy if you want to have a chance to win this tournament
	@ 2012-03-02 1:33 AM (#6830 - in reply to #6828) (#6830) Top
xevs Posts: 43 Country : Japan	xevs posted @ 2012-03-02 1:33 AM Oops, I see clearly now. I had to read the rule carefully. (of course, that is another very important stratagy to win tournaments ;-) )
	@ 2012-03-02 6:08 AM (#6831 - in reply to #6828) (#6831) Top
Administrator Country : India	Administrator posted @ 2012-03-02 6:08 AM French version of the instruction booklet is available - Download \| View
	@ 2012-03-02 9:33 AM (#6832 - in reply to #6831) (#6832) Top
vopani Posts: 739 Country : India	vopani posted @ 2012-03-02 9:33 AM I find it convenient when the diagonal lines of Anti Diagonal are given. It doesn't matter much but maybe if others prefer it too, it could be added. Looking forward to a 'sudoku' test (after more than a month).
	@ 2012-03-02 12:18 PM (#6834 - in reply to #6825) (#6834) Top
prasanna16391 Posts: 1801 Country : India	prasanna16391 posted @ 2012-03-02 12:18 PM Nikola - 2012-03-01 3:30 PM To be well prepared for the test, I have to start to live diagonally. From now my keyboard is slightly slanted, I walk in a zig-zag, cross the street only diagonally and please tell everyone who see me in the car these days to slow down. N ..i ...k .....o .......l ........a M ..e ....t ......o ........o ^^ because my actual name slanted would take far too much space. I'm looking forward to this too. I wonder if Fred has tried the revenge methods we talked about on facebook...
	@ 2012-03-02 1:17 PM (#6835 - in reply to #6828) (#6835) Top
purifire Posts: 460 Country : India	purifire posted @ 2012-03-02 1:17 PM First of all... great looking grids Fred.... will be nice to make a comeback to LMI test with your test.... And here is some news for solvers which is not related to this test!!! Adobe PDF Reader X is the new free product from Adobe. It allows you to add text directly to a pdf. People like me who have printer issues can now open the pdf and solve directly instead of creating grids or pasting in ms paint and then solving. The link for download is added below. I know that LMI already has an online interface for sudoku. But this is helpful for puzzle tests and other sudoku competitions around the globe where printing is needed. Hope this is helpful to ppl. Adobe PDF Reader X Rishi Edited by purifire 2012-03-02 1:19 PM
	@ 2012-03-02 9:44 PM (#6836 - in reply to #6834) (#6836) Top
Fred76 Posts: 337 Country : Switzerland	Fred76 posted @ 2012-03-02 9:44 PM prasanna16391 - 2012-03-02 12:18 PM I wonder if Fred has tried the revenge methods we talked about on facebook... Haha ! Grids were hard enough ! I didn't to try to make them harder Last time we authored a test at LMI ( http://logicmastersindia.com/lmitests/?test=M201103S ) nobody achieve to finish all the grids correctly in time, so this time I hope it'll not be the case Untouch sudokus that I posted on my blog last week were initially planned as 13th grid for this test: http://sudokuvariante.blogspot.com/search/label/Untouch (untouch N°1 for the IB and untouch N°2 for the test). Fred
	@ 2012-03-03 2:46 AM (#6837 - in reply to #6832) (#6837) Top
debmohanty Country : India	debmohanty posted @ 2012-03-03 2:46 AM Rohan Rao - 2012-03-02 9:33 AM I find it convenient when the diagonal lines of Anti Diagonal are given. It doesn't matter much but maybe if others prefer it too, it could be added. Google search for Anti Diagonal Sudoku showed this link at the top - http://rohanrao.blogspot.in/2010/03/rules-of-anti-diagonal-sudoku.h...
	@ 2012-03-03 2:48 AM (#6838 - in reply to #6832) (#6838) Top
Fred76 Posts: 337 Country : Switzerland	Fred76 posted @ 2012-03-03 2:48 AM Rohan Rao - 2012-03-02 9:33 AM I find it convenient when the diagonal lines of Anti Diagonal are given. It doesn't matter much but maybe if others prefer it too, it could be added. Looking forward to a 'sudoku' test (after more than a month). All players can answer the poll in the beginning of this thread. From my point of view it does not matter, but as I don't play, I'll not answer the poll. Rohan, I noticed that anti-diagonal that are on your blog have no diagonal lines given . But I can add them if a majority of players want, there is no problem for me. Fred
	@ 2012-03-03 5:41 AM (#6839 - in reply to #6837) (#6839) Top
Fred76 Posts: 337 Country : Switzerland	Fred76 posted @ 2012-03-03 5:41 AM debmohanty - 2012-03-03 2:46 AM Rohan Rao - 2012-03-02 9:33 AM I find it convenient when the diagonal lines of Anti Diagonal are given. It doesn't matter much but maybe if others prefer it too, it could be added. Google search for Anti Diagonal Sudoku showed this link at the top - http://rohanrao.blogspot.in/2010/03/rules-of-anti-diagonal-sudoku.h... Yes, but we must admit that this guy, Mister Rohanrao Blogspot, doesn't look very serious ! Does anybody know him ?
	@ 2012-03-03 7:35 AM (#6840 - in reply to #6774) (#6840) Top
zachpuzzle Posts: 14 Country : United States	zachpuzzle posted @ 2012-03-03 7:35 AM This will be the first sudoku test that i participate instead of doing afterward so i am so excited
	@ 2012-03-03 10:07 AM (#6841 - in reply to #6840) (#6841) Top
vopani Posts: 739 Country : India	vopani posted @ 2012-03-03 10:07 AM Ok people. I lose. There's been some major problem with my blog (which is supposed to be resolved by 1st week of March), so I'm hoping to start posting again from Monday :-)
	@ 2012-03-03 11:30 AM (#6842 - in reply to #6839) (#6842) Top
prasanna16391 Posts: 1801 Country : India	prasanna16391 posted @ 2012-03-03 11:30 AM Fred76 - 2012-03-03 5:41 AM Yes, but we must admit that this guy, Mister Rohanrao Blogspot, doesn't look very serious ! Does anybody know him ? I'm not sure.. I think he's some foreigner... Rohan Rao - 2012-03-03 10:07 AM Ok people. I lose. There's been some major problem with my blog (which is supposed to be resolved by 1st week of March), so I'm hoping to start posting again from Monday :-) Looking forward to it Mister Rohanrao Blogspot.
	@ 2012-03-03 2:52 PM (#6843 - in reply to #6840) (#6843) Top
Fred76 Posts: 337 Country : Switzerland	Fred76 posted @ 2012-03-03 2:52 PM zachpuzzle - 2012-03-03 7:35 AM This will be the first sudoku test that i participate instead of doing afterward so i am so excited Great !
	@ 2012-03-05 12:08 AM (#6844 - in reply to #6774) (#6844) Top
prasanna16391 Posts: 1801 Country : India	prasanna16391 posted @ 2012-03-05 12:08 AM Should've kept "no" and "does not matter" as two separate options in the poll, now the people who wanted it might get out voted by people to whom it didn't matter. Of course this is in hindsight, it just struck me.
	@ 2012-03-06 9:11 AM (#6848 - in reply to #6774) (#6848) Top
Administrator Country : India	Administrator posted @ 2012-03-06 9:11 AM Examples Online All examples are available online now. Please check the submission page, and report any inconvenience.
	@ 2012-03-07 1:59 PM (#6853 - in reply to #6774) (#6853) Top
David McNeill Posts: 63 Country : United Kingdom	David McNeill posted @ 2012-03-07 1:59 PM Hope to participate in this test. Is it possible to mark the arrows in a paler colour in Arrows Battle Sudoku? Thank you, David McNeill.
	@ 2012-03-07 2:55 PM (#6854 - in reply to #6853) (#6854) Top
Fred76 Posts: 337 Country : Switzerland	Fred76 posted @ 2012-03-07 2:55 PM David McNeill - 2012-03-07 1:59 PM Hope to participate in this test. Is it possible to mark the arrows in a paler colour in Arrows Battle Sudoku? Thank you, David McNeill. Done for the test grid ! Fred
	@ 2012-03-09 3:05 AM (#6856 - in reply to #6854) (#6856) Top
Fred76 Posts: 337 Country : Switzerland	Fred76 posted @ 2012-03-09 3:05 AM As there is a big majority in the poll who said that it were not better to have marked diagonal in the anti-diagonal sudoku (or it does not matter) , I'll not add them. Sorry for the 7 people who voted for marked diagonals in the anti-diagonal sudoku, I hope you'll have fun solving this grid despite that. Fred
	@ 2012-03-09 4:03 AM (#6857 - in reply to #6856) (#6857) Top
Para Posts: 315 Country : The Netherlands	Para posted @ 2012-03-09 4:03 AM Fred76 - 2012-03-09 3:05 AM As there is a big majority in the poll who said that it were not better to have marked diagonal in the anti-diagonal sudoku (or it does not matter) , I'll not add them. Sorry for the 7 people who voted for marked diagonals in the anti-diagonal sudoku, I hope you'll have fun solving this grid despite that. Fred I just find it handier to know any marked diagonal means different digits.