Thread - Classics vs. Innovatives — LMI August Sudoku Test

@ 2012-07-28 10:45 PM (#8048) (#8048) Top

Administrator

Country : India

Administrator posted @ 2012-07-28 10:45 PM

Logic Masters India announces August Sudoku Test — Classics vs. Innovatives

Authors : Shinichi Aoki, Yosuke Imai, Masahiro Kaneko

Dates : 4^th - 6^th August

IB and Submission Link : here

@ 2012-07-30 6:23 AM (#8057 - in reply to #8048) (#8057) Top

Administrator

Country : India

Administrator posted @ 2012-07-30 6:23 AM

IB is uploaded.

@ 2012-07-30 8:25 AM (#8058 - in reply to #8048) (#8058) Top

Kota

Posts: 33

Country : Japan

Kota posted @ 2012-07-30 8:25 AM

Thanks for all authors and test solvers.
(I10)Sum of them: Do all marks appear?

@ 2012-07-30 8:38 AM (#8059 - in reply to #8058) (#8059) Top

deu

Posts: 69

Country : Japan

deu posted @ 2012-07-30 8:38 AM

Kota - 2012-07-30 8:25 AM

Thanks for all authors and test solvers.
(I10)Sum of them: Do all marks appear?

Yes. All possible squares are given.
(A cell is marked "IF AND ONLY IF" the digit ...)

@ 2012-07-30 8:45 AM (#8060 - in reply to #8059) (#8060) Top

debmohanty

Country : India

debmohanty posted @ 2012-07-30 8:45 AM

(I10)Sum of them
Additionally, I think it is important to note that the marked digit can be sum of surrounding 2 or 3 or 4 digits. I got confused why 7 at R3C7 is marked, only to realize that 7 = 1+1+2+3. I think all other marked cells are sum of 2 digits.

@ 2012-07-30 2:54 PM (#8061 - in reply to #8060) (#8061) Top

gauravkorde

Posts: 27

Country : India

gauravkorde posted @ 2012-07-30 2:54 PM

will there be online solving?

@ 2012-07-30 6:35 PM (#8064 - in reply to #8048) (#8064) Top

utkaarsh

Posts: 89

Country : India

utkaarsh posted @ 2012-07-30 6:35 PM

True to the name -really innovative Sudoku variants,
Co-ordinates is my choice for the best of the lot in terms of creativity !!

@ 2012-07-30 7:37 PM (#8065 - in reply to #8064) (#8065) Top

prasanna16391

Posts: 1801

Country : India

prasanna16391 posted @ 2012-07-30 7:37 PM

utkaarsh - 2012-07-30 6:35 PM

True to the name -really innovative Sudoku variants,
Co-ordinates is my choice for the best of the lot in terms of creativity !!

I agree. I found that a really interesting idea too.

Also, 16 grids, so looking forward to it :P

@ 2012-07-31 4:09 PM (#8067 - in reply to #8061) (#8067) Top

Administrator

Country : India

Administrator posted @ 2012-07-31 4:09 PM

gauravkorde - 2012-07-30 2:54 PM

will there be online solving?

We decided not to have online solving for this test. It is difficult to solve some of the Sudokus online with LMI's basic interface.

@ 2012-07-31 6:14 PM (#8068 - in reply to #8048) (#8068) Top

akash.doulani

Posts: 157

Country : India

akash.doulani posted @ 2012-07-31 6:14 PM

could not understand the rules of between sudoku. can someone please explain

@ 2012-07-31 6:33 PM (#8069 - in reply to #8068) (#8069) Top

deu

Posts: 69

Country : Japan

deu posted @ 2012-07-31 6:33 PM

akash.doulani - 2012-07-31 6:14 PM

could not understand the rules of between sudoku. can someone please explain

Take the arrow in the bottom right block for an example.
5 (R7C8) and 8 (R8C9) are on this arrow, and this arrow points 9 (R7C7) and 4 (R9C9). 5 and 8 are larger than 4 and smaller than 9.
The same thing must be true for all arrows.

@ 2012-08-01 1:45 AM (#8070 - in reply to #8048) (#8070) Top

Ours brun

Posts: 148

Country : France

Ours brun posted @ 2012-08-01 1:45 AM

prasanna16391 - 2012-07-30 3:37 PM

utkaarsh - 2012-07-30 6:35 PM
Co-ordinates is my choice for the best of the lot in terms of creativity !!

I agree. I found that a really interesting idea too.

Very original indeed. I am slightly afraid that the solving may be a bit laborious (and probably error-prone), but I hope to be wrong; I haven't been able to print the IB yet, so perhaps solving the example will change my mind. Anyway, interesting rule which certainly makes it possible to create some very fun puzzles. I already have one idea or two in mind...

Just to be sure : regarding Between sudoku, digits on an arrow are always strictly larger/smaller than the two digits on the extremities, right ?

Thanks !

@ 2012-08-01 1:53 AM (#8071 - in reply to #8070) (#8071) Top

prasanna16391

Posts: 1801

Country : India

prasanna16391 posted @ 2012-08-01 1:53 AM

Ours brun - 2012-08-01 1:45 AM

Just to be sure : regarding Between sudoku, digits on an arrow are always strictly larger/smaller than the two digits on the extremities, right ?

Thanks !

Looking at the IB example, yes. All digits have to be "in between" the two digits on the extremities, i.e. larger than one of them and smaller than the other.

@ 2012-08-01 2:05 AM (#8072 - in reply to #8048) (#8072) Top

Ours brun

Posts: 148

Country : France

Ours brun posted @ 2012-08-01 2:05 AM

Well, I know it is the case in the IB, but since I am unsure of the mathematical definition of "in between", I would prefer to be certain - although I am pretty sure Hideaki's answer will be the same as yours.

@ 2012-08-01 3:04 AM (#8073 - in reply to #8070) (#8073) Top

deu

Posts: 69

Country : Japan

deu posted @ 2012-08-01 3:04 AM

Ours brun - 2012-08-01 1:45 AM

Just to be sure : regarding Between sudoku, digits on an arrow are always strictly larger/smaller than the two digits on the extremities, right ?

Yes. Prasanna's answer is completely correct. We use the word "between" in the strict sense.

@ 2012-08-01 3:53 AM (#8078 - in reply to #8048) (#8078) Top

deu

Posts: 69

Country : Japan

deu posted @ 2012-08-01 3:53 AM

Here are some links to practice puzzles:

gorogoro posted an (I4) Even Sandwich Sudoku in his blog ( http://sugarroad.blogspot.jp/2012/07/puzzle-033-even-sandwich-sudok... ). Quite tough but beautiful one.

In Serkan's blog ( http://yureklis.wordpress.com/2012/06/02/top-heavy-number-place/ ), there is a link to the file of Japanese Number Place Championship 2009 (English version). This file contains (C1/C4) Classic, (C5) Inequality, (I2) Odd Labyrinth and (I3) Between.

@ 2012-08-02 4:09 AM (#8091 - in reply to #8078) (#8091) Top

Fred76

Posts: 337

Country : Switzerland

Fred76 posted @ 2012-08-02 4:09 AM

Some really interesting innovations here. I look forward to it !

Fred

@ 2012-08-02 8:36 AM (#8092 - in reply to #8048) (#8092) Top

Administrator

Country : India

Administrator posted @ 2012-08-02 8:36 AM

Instructions booklet in Japanese

Link to Instructions booklet in Japanese

Edited by debmohanty 2012-08-02 7:29 PM

@ 2012-08-02 11:14 AM (#8093 - in reply to #8048) (#8093) Top

abhi265645

Posts: 10

Country : India

abhi265645 posted @ 2012-08-02 11:14 AM

i solved two innovations from instruction booklet - 1. even sandwich and 2. coordinates. . both are superb puzzle. .

@ 2012-08-02 3:19 PM (#8094 - in reply to #8048) (#8094) Top

suryadevi

Posts: 14

Country : India

suryadevi posted @ 2012-08-02 3:19 PM

How can play the sudoku puzzles any please tell me.

@ 2012-08-02 3:33 PM (#8095 - in reply to #8094) (#8095) Top

prasanna16391

Posts: 1801

Country : India

prasanna16391 posted @ 2012-08-02 3:33 PM

suryadevi - 2012-08-02 3:19 PM

How can play the sudoku puzzles any please tell me.

Thats a really vague question. Do you want tips on how to solve? If so, do post a specific grid on the forum where you're having trouble, and one of us will surely help. Do you want to know how to participate in the Classics vs Innovatives contest? Read through this topic - http://logicmastersindia.com/forum/forums/thread-view.asp?tid=381, I think it covers everything. If you still have doubts feel free to post again.

@ 2012-08-02 7:04 PM (#8096 - in reply to #8069) (#8096) Top

kritz@martin

Posts: 3

Country : India

kritz@martin posted @ 2012-08-02 7:04 PM

hey!! im a new entrant cn sum1 plzz temme also bought the classic n innovatives dat starts in 34hrs cuz i jst finished exams n wanna chillax so where else but doing sudokus!! so be my guest!! whoever see's dis pls reply!!

@ 2012-08-02 7:22 PM (#8097 - in reply to #8096) (#8097) Top

prasanna16391

Posts: 1801

Country : India

prasanna16391 posted @ 2012-08-02 7:22 PM

kritz@martin - 2012-08-02 7:04 PM

hey!! im a new entrant cn sum1 plzz temme also bought the classic n innovatives dat starts in 34hrs cuz i jst finished exams n wanna chillax so where else but doing sudokus!! so be my guest!! whoever see's dis pls reply!!

@ 2012-08-04 3:48 AM (#8100 - in reply to #8048) (#8100) Top

Administrator

Country : India

Administrator posted @ 2012-08-04 3:48 AM

Announcements

1. Password protected pdf is uploaded. It has 8 pages, there is no cover page / points table. Each page has two sudokus.
2. As announced earlier, there is no online solving in this test.
3. Link to score page : http://logicmastersindia.com/M201208S/score.asp

@ 2012-08-04 9:02 PM (#8102 - in reply to #8048) (#8102) Top

swaroop2011

Posts: 668

Country : India

swaroop2011 posted @ 2012-08-04 9:02 PM

Nice test this time. I would have to still improve of a lot though.
Thanks to authors and LMI for organizing test and such beautiful puzzles. I really liked the innovatives and will solve the remaining later. :)

Edited by swaroop2011 2012-08-04 9:16 PM


	@ 2012-07-28 10:45 PM (#8048) (#8048) Top
Administrator Country : India	Administrator posted @ 2012-07-28 10:45 PM Logic Masters India announces August Sudoku Test — Classics vs. Innovatives Authors : Shinichi Aoki, Yosuke Imai, Masahiro Kaneko Dates : 4^th - 6^th August IB and Submission Link : here
	@ 2012-07-30 6:23 AM (#8057 - in reply to #8048) (#8057) Top
Administrator Country : India	Administrator posted @ 2012-07-30 6:23 AM IB is uploaded.
	@ 2012-07-30 8:25 AM (#8058 - in reply to #8048) (#8058) Top
Kota Posts: 33 Country : Japan	Kota posted @ 2012-07-30 8:25 AM Thanks for all authors and test solvers. (I10)Sum of them: Do all marks appear?
	@ 2012-07-30 8:38 AM (#8059 - in reply to #8058) (#8059) Top
deu Posts: 69 Country : Japan	deu posted @ 2012-07-30 8:38 AM Kota - 2012-07-30 8:25 AM Thanks for all authors and test solvers. (I10)Sum of them: Do all marks appear? Yes. All possible squares are given. (A cell is marked "IF AND ONLY IF" the digit ...)
	@ 2012-07-30 8:45 AM (#8060 - in reply to #8059) (#8060) Top
debmohanty Country : India	debmohanty posted @ 2012-07-30 8:45 AM (I10)Sum of them Additionally, I think it is important to note that the marked digit can be sum of surrounding 2 or 3 or 4 digits. I got confused why 7 at R3C7 is marked, only to realize that 7 = 1+1+2+3. I think all other marked cells are sum of 2 digits.
	@ 2012-07-30 2:54 PM (#8061 - in reply to #8060) (#8061) Top
gauravkorde Posts: 27 Country : India	gauravkorde posted @ 2012-07-30 2:54 PM will there be online solving?
	@ 2012-07-30 6:35 PM (#8064 - in reply to #8048) (#8064) Top
utkaarsh Posts: 89 Country : India	utkaarsh posted @ 2012-07-30 6:35 PM True to the name -really innovative Sudoku variants, Co-ordinates is my choice for the best of the lot in terms of creativity !!
	@ 2012-07-30 7:37 PM (#8065 - in reply to #8064) (#8065) Top
prasanna16391 Posts: 1801 Country : India	prasanna16391 posted @ 2012-07-30 7:37 PM utkaarsh - 2012-07-30 6:35 PM True to the name -really innovative Sudoku variants, Co-ordinates is my choice for the best of the lot in terms of creativity !! I agree. I found that a really interesting idea too. Also, 16 grids, so looking forward to it :P
	@ 2012-07-31 4:09 PM (#8067 - in reply to #8061) (#8067) Top
Administrator Country : India	Administrator posted @ 2012-07-31 4:09 PM gauravkorde - 2012-07-30 2:54 PM will there be online solving? We decided not to have online solving for this test. It is difficult to solve some of the Sudokus online with LMI's basic interface.
	@ 2012-07-31 6:14 PM (#8068 - in reply to #8048) (#8068) Top
akash.doulani Posts: 157 Country : India	akash.doulani posted @ 2012-07-31 6:14 PM could not understand the rules of between sudoku. can someone please explain
	@ 2012-07-31 6:33 PM (#8069 - in reply to #8068) (#8069) Top
deu Posts: 69 Country : Japan	deu posted @ 2012-07-31 6:33 PM akash.doulani - 2012-07-31 6:14 PM could not understand the rules of between sudoku. can someone please explain Take the arrow in the bottom right block for an example. 5 (R7C8) and 8 (R8C9) are on this arrow, and this arrow points 9 (R7C7) and 4 (R9C9). 5 and 8 are larger than 4 and smaller than 9. The same thing must be true for all arrows.
	@ 2012-08-01 1:45 AM (#8070 - in reply to #8048) (#8070) Top
Ours brun Posts: 148 Country : France	Ours brun posted @ 2012-08-01 1:45 AM prasanna16391 - 2012-07-30 3:37 PM utkaarsh - 2012-07-30 6:35 PM Co-ordinates is my choice for the best of the lot in terms of creativity !! I agree. I found that a really interesting idea too. Very original indeed. I am slightly afraid that the solving may be a bit laborious (and probably error-prone), but I hope to be wrong; I haven't been able to print the IB yet, so perhaps solving the example will change my mind. Anyway, interesting rule which certainly makes it possible to create some very fun puzzles. I already have one idea or two in mind... Just to be sure : regarding Between sudoku, digits on an arrow are always strictly larger/smaller than the two digits on the extremities, right ? Thanks !
	@ 2012-08-01 1:53 AM (#8071 - in reply to #8070) (#8071) Top
prasanna16391 Posts: 1801 Country : India	prasanna16391 posted @ 2012-08-01 1:53 AM Ours brun - 2012-08-01 1:45 AM Just to be sure : regarding Between sudoku, digits on an arrow are always strictly larger/smaller than the two digits on the extremities, right ? Thanks ! Looking at the IB example, yes. All digits have to be "in between" the two digits on the extremities, i.e. larger than one of them and smaller than the other.
	@ 2012-08-01 2:05 AM (#8072 - in reply to #8048) (#8072) Top
Ours brun Posts: 148 Country : France	Ours brun posted @ 2012-08-01 2:05 AM Well, I know it is the case in the IB, but since I am unsure of the mathematical definition of "in between", I would prefer to be certain - although I am pretty sure Hideaki's answer will be the same as yours.
	@ 2012-08-01 3:04 AM (#8073 - in reply to #8070) (#8073) Top
deu Posts: 69 Country : Japan	deu posted @ 2012-08-01 3:04 AM Ours brun - 2012-08-01 1:45 AM Just to be sure : regarding Between sudoku, digits on an arrow are always strictly larger/smaller than the two digits on the extremities, right ? Yes. Prasanna's answer is completely correct. We use the word "between" in the strict sense.
	@ 2012-08-01 3:53 AM (#8078 - in reply to #8048) (#8078) Top
deu Posts: 69 Country : Japan	deu posted @ 2012-08-01 3:53 AM Here are some links to practice puzzles: gorogoro posted an (I4) Even Sandwich Sudoku in his blog ( http://sugarroad.blogspot.jp/2012/07/puzzle-033-even-sandwich-sudok... ). Quite tough but beautiful one. In Serkan's blog ( http://yureklis.wordpress.com/2012/06/02/top-heavy-number-place/ ), there is a link to the file of Japanese Number Place Championship 2009 (English version). This file contains (C1/C4) Classic, (C5) Inequality, (I2) Odd Labyrinth and (I3) Between.
	@ 2012-08-02 4:09 AM (#8091 - in reply to #8078) (#8091) Top
Fred76 Posts: 337 Country : Switzerland	Fred76 posted @ 2012-08-02 4:09 AM Some really interesting innovations here. I look forward to it ! Fred
	@ 2012-08-02 8:36 AM (#8092 - in reply to #8048) (#8092) Top
Administrator Country : India	Administrator posted @ 2012-08-02 8:36 AM Instructions booklet in Japanese Link to Instructions booklet in Japanese Edited by debmohanty 2012-08-02 7:29 PM
	@ 2012-08-02 11:14 AM (#8093 - in reply to #8048) (#8093) Top
abhi265645 Posts: 10 Country : India	abhi265645 posted @ 2012-08-02 11:14 AM i solved two innovations from instruction booklet - 1. even sandwich and 2. coordinates. . both are superb puzzle. .
	@ 2012-08-02 3:19 PM (#8094 - in reply to #8048) (#8094) Top
suryadevi Posts: 14 Country : India	suryadevi posted @ 2012-08-02 3:19 PM How can play the sudoku puzzles any please tell me.
	@ 2012-08-02 3:33 PM (#8095 - in reply to #8094) (#8095) Top
prasanna16391 Posts: 1801 Country : India	prasanna16391 posted @ 2012-08-02 3:33 PM suryadevi - 2012-08-02 3:19 PM How can play the sudoku puzzles any please tell me. Thats a really vague question. Do you want tips on how to solve? If so, do post a specific grid on the forum where you're having trouble, and one of us will surely help. Do you want to know how to participate in the Classics vs Innovatives contest? Read through this topic - http://logicmastersindia.com/forum/forums/thread-view.asp?tid=381, I think it covers everything. If you still have doubts feel free to post again.
	@ 2012-08-02 7:04 PM (#8096 - in reply to #8069) (#8096) Top
kritz@martin Posts: 3 Country : India	kritz@martin posted @ 2012-08-02 7:04 PM hey!! im a new entrant cn sum1 plzz temme also bought the classic n innovatives dat starts in 34hrs cuz i jst finished exams n wanna chillax so where else but doing sudokus!! so be my guest!! whoever see's dis pls reply!!
	@ 2012-08-02 7:22 PM (#8097 - in reply to #8096) (#8097) Top
prasanna16391 Posts: 1801 Country : India	prasanna16391 posted @ 2012-08-02 7:22 PM kritz@martin - 2012-08-02 7:04 PM hey!! im a new entrant cn sum1 plzz temme also bought the classic n innovatives dat starts in 34hrs cuz i jst finished exams n wanna chillax so where else but doing sudokus!! so be my guest!! whoever see's dis pls reply!! Thats a really vague question. Do you want tips on how to solve? If so, do post a specific grid on the forum where you're having trouble, and one of us will surely help. Do you want to know how to participate in the Classics vs Innovatives contest? Read through this topic - http://logicmastersindia.com/forum/forums/thread-view.asp?tid=381, I think it covers everything. If you still have doubts feel free to post again.
	@ 2012-08-04 3:48 AM (#8100 - in reply to #8048) (#8100) Top
Administrator Country : India	Administrator posted @ 2012-08-04 3:48 AM Announcements 1. Password protected pdf is uploaded. It has 8 pages, there is no cover page / points table. Each page has two sudokus. 2. As announced earlier, there is no online solving in this test. 3. Link to score page : http://logicmastersindia.com/M201208S/score.asp
	@ 2012-08-04 9:02 PM (#8102 - in reply to #8048) (#8102) Top
swaroop2011 Posts: 668 Country : India	swaroop2011 posted @ 2012-08-04 9:02 PM Nice test this time. I would have to still improve of a lot though. Thanks to authors and LMI for organizing test and such beautiful puzzles. I really liked the innovatives and will solve the remaining later. :) Edited by swaroop2011 2012-08-04 9:16 PM