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Classic Look-Alikes40 posts • Page 1 of 2 • 1 2
@ 2010-06-28 5:09 PM (#773) (#773) Top

vopani



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vopani posted @ 2010-06-28 5:09 PM

Logic Masters India announces the July Sudoku Monthly Test 'Classic Look-Alikes'. Jan Mrozowski (janoslaw), the current and double World Sudoku Champion is the author of the puzzles. He's fond of Classic Sudokus with one additional rule and thats exactly why he's created a test for us.

The test will be held on 17th-18th July, 2010. You can download the Instruction Booklet and check out the examples on the SUBMISSION PAGE: http://logicmastersindia.com/M201007S/

You can ask your doubts and give feedback on the forum: http://logicmastersindia.com/forum/forums/thread-view.asp?tid=69

You have seen the Champion in action, now here's your chance to crack some of the Champion's puzzles!
@ 2010-06-28 6:54 PM (#784 - in reply to #773) (#784) Top

Administrator



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Administrator posted @ 2010-06-28 6:54 PM

Some quick details

Link : http://logicmastersindia.com/M201007S
Open for : 48 hours
Length : 120 minutes
Number of Sudokus : 23 (14 9X9 Sudokus and 9 6X6 Sudokus)
Author : Jan Mrozowski
Sudoku Types : All types look like Classics
Classic SudokuDiagonal Sudoku
Quadro SudokuNo touch Sudoku
Antiknight SudokuNon-Consecutive Sudoku
Between SudokuNo 3 odd/even in line Sudoku
Symmetric Unequal SudokuTouchy Sudoku

@ 2010-06-28 10:50 PM (#787 - in reply to #773) (#787) Top

tamz29



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tamz29 posted @ 2010-06-28 10:50 PM

I don't understand between sudoku
@ 2010-06-28 11:18 PM (#788 - in reply to #787) (#788) Top

debmohanty




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debmohanty posted @ 2010-06-28 11:18 PM

tamz29 - 2010-06-28 10:50 PM

I don't understand between sudoku

It is little difficult to explain without the solution.
In "Between Sudoku", the 'given' hints have special meaning.
In row 5, between the given 1 and the given 5, only digits between 1 and 5 can appear.
Similarly in Column5, between the given 1 and the given 6, only digitsbetween 1 and 6 can appear.
In Row9, between the given 7 and the given 9, only digits between 7 and 9 can appear.
In Row7, between the given 2 and the given 6, only digits between 2 and 6 can appear.

So on ...



Does that clarify?
@ 2010-06-29 2:50 AM (#789 - in reply to #788) (#789) Top

davmillar




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davmillar posted @ 2010-06-29 2:50 AM

This is actually a brilliant variant. I can't wait to try this type in the test itself. It just needs a silly but trendy nickname like "Sandwich Sudoku".

@ 2010-06-29 7:27 AM (#790 - in reply to #789) (#790) Top

Leaf Card



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Leaf Card posted @ 2010-06-29 7:27 AM

Chinese translation of rules are here http://www.sudokufans.org/forums/index.php?showtopic=82

Edited by Leaf Card 2010-06-29 7:27 AM
@ 2010-06-29 8:19 AM (#791 - in reply to #789) (#791) Top

debmohanty




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debmohanty posted @ 2010-06-29 8:19 AM

davmillar - 2010-06-29 2:50 AM

This is actually a brilliant variant. I can't wait to try this type in the test itself. It just needs a silly but trendy nickname like "Sandwich Sudoku".

David,
The image and the interpretation is too good.
@ 2010-06-29 8:19 AM (#792 - in reply to #790) (#792) Top

debmohanty




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debmohanty posted @ 2010-06-29 8:19 AM

Leaf Card - 2010-06-29 7:27 AM

Chinese translation of rules are here http://www.sudokufans.org/forums/index.php?showtopic=82

Thank you so very much!
@ 2010-06-29 9:38 PM (#795 - in reply to #773) (#795) Top

vopani



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vopani posted @ 2010-06-29 9:38 PM

Really nice David :-)
@ 2010-07-01 11:02 PM (#802 - in reply to #773) (#802) Top

Fred76




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Fred76 posted @ 2010-07-01 11:02 PM

It seems that it will be a very fun test !

Grids in the booklet are very interesting: I like particularly non common variations: "sandwich sudoku" and "No 3 odd/even in line".

I hope I can do this test (but I'm not sure).

Fred
@ 2010-07-05 8:35 AM (#854 - in reply to #773) (#854) Top

debmohanty




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debmohanty posted @ 2010-07-05 8:35 AM

Sudoku Type Size Points
Classic Sudoku 1 9X9 18
Classic Sudoku 2 9X9 15
Classic Sudoku 3 9X9 26
Classic Sudoku 4 9X9 27
Classic Sudoku 5 9X9 30
Diagonal Sudoku 9X9 29
6X6 7
Quadro Sudoku 9X9 24
6X6 4
No Touch Sudoku 9X9 46
6X6 10
AntiKnight Sudoku 9X9 33
6X6 7
Non-Consecutive Sudoku 9X9 43
6X6 6
Between Sudoku 9X9 22
6X6 5
No 3 odd/even in line Sudoku 9X9 55
6X6 5
Symmetric unequal Sudoku 9X9 36
6X6 6
Touchy Sudoku 9X9 38
6X6 8
Total 500
@ 2010-07-06 2:13 PM (#896 - in reply to #773) (#896) Top

Karlson



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Karlson posted @ 2010-07-06 2:13 PM

Hello!

I have some problems with the "Symmetric unequal sudoku" and "Antiknight sudoku".
Could you please give me an example how to match it?

Thanks

The sudokus are very interested. Good job

Greetings from Germany

Karlson

@ 2010-07-06 2:45 PM (#897 - in reply to #896) (#897) Top

debmohanty




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debmohanty posted @ 2010-07-06 2:45 PM

Hello Karlson,

Welcome to LMI.

Can you please the problem you are facing with "Symmetric unequal sudoku"?
When rotated 180° R3C3 becomes R7C7, R1C6 becomes R8C4. So as per the rules, R3C3 can never have the same digit as R7C7, similarly R1C6 can never have the same digit as R8C4, so on ...
In general, RnCn can never have the same digit as R[10-n]C[10-n]
Hope the instruction is clear.

If you are facing problems solving the specific example, let us know and one of us can help with step-by-step hints?
If you need more examples, you can check the puzzle booklet of mock12 at http://logicmastersindia.com/mock12/mock12.asp

Also, what is the problem you are facing about "Antiknight sudoku"?

Deb
@ 2010-07-06 3:51 PM (#898 - in reply to #896) (#898) Top

purifire




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purifire posted @ 2010-07-06 3:51 PM

Hi Karlson,

I am trying to attach an example in image format to explain it better.

In First image, R1C1 (Row 1 - Column 1 ) is having number 8. The second image is the same grid which I have rotated by 180 degree angle and now the number 8 is in R9C9.

The condition in Symmetric Unequal sudoku is that same number cannot be in a cell which is rotated by 180 degrees. Hence, if 8 is in R1C1 it cannot be in R9C9. Hope this clarifies.




@ 2010-07-06 3:59 PM (#899 - in reply to #896) (#899) Top

purifire




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purifire posted @ 2010-07-06 3:59 PM

In Antiknight, a number cannot repeat in another cell which is at a knights step as in Chess. In the image below, R5C5 has the number 5 in it. Other cells which are at a Knight's step (as in chess ) from this cell are highlighted in yellow color. Hence the number 5 cannot be placed in any of these cells which are colored yellow. Hope this is what you were looking for in Anti Knight Sudoku.

Rishi (purifire)


@ 2010-07-06 5:49 PM (#903 - in reply to #899) (#903) Top

purifire




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purifire posted @ 2010-07-06 5:49 PM

I hope I have made a correct assumption of your problem with Anti Knight Sudoku Karlson :)

Rishi
@ 2010-07-06 9:09 PM (#907 - in reply to #773) (#907) Top

vopani



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vopani posted @ 2010-07-06 9:09 PM

If you want more practise Anti Knight puzzles to solve, there are about 10 of them on my blog: http://rohanrao.blogspot.com/search/label/Anti%20Knight%20Sudoku

Rohan.
@ 2010-07-06 11:30 PM (#909 - in reply to #773) (#909) Top

Karlson



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Karlson posted @ 2010-07-06 11:30 PM

@all

Thank you very much for the Illustration and help.

The language (my translation) was the problem in "Anti Knight Sudoku".
In german the figur called "Pferd" (translation in english = horse).

Symmetric unequal sudoku is now no problem also too.

I´am looking forward for the weekend.

Many greetings

Karlson

Edited by Karlson 2010-07-06 11:36 PM
@ 2010-07-12 4:00 AM (#917 - in reply to #773) (#917) Top

forcolin




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forcolin posted @ 2010-07-12 4:00 AM

Sorry if I go back to the Between Sudoku (or Sandwich sudoku..)

the instructions say that "if there is MORE THAN ONE CELL between two given digits.... only digits inbetween the given can be used.
But in the example (and in Jan's explanation a few posts ago) the same applies also when there is EXACTLY ONE CELL between two given digits. for example, between 7 and 9 in row 9 the is EXACTLY ONE CELL (and not MORE THAN ONE CELL), and the digit 8 is placed. Is this just a coincidence? Could another digit (for example 3) be used? Or the instructions are misleading?

In the diagram, MORE THAN ONE CELL BETWEEN TWO GIVEN DIGITS occur only in row 5 and in column 5, while there are many more examples of EXACTLY ONE CELL BETWEEN GIVEN DIGITS.
Should the instructions say "if there is AT LEAST ONE CELL BETWEN TWO GIVEN DIGITS IN THE SAME ROW OR COLUMN????)

Please clarify.
Stefano

@ 2010-07-12 8:34 AM (#918 - in reply to #917) (#918) Top

debmohanty




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debmohanty posted @ 2010-07-12 8:34 AM

Stefano,

You are correct.
The instruction should be "if there is AT LEAST ONE CELL BETWEN TWO GIVEN DIGITS IN THE SAME ROW OR COLUMN, ......"

Deb
@ 2010-07-16 4:01 AM (#932 - in reply to #773) (#932) Top

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Administrator posted @ 2010-07-16 4:01 AM

Sudoku Booklet (12 pages, password protected) is uploaded here

Note that this booklet does not have the examples and the Rules.It only has points and the Sudokus.
@ 2010-07-16 3:37 PM (#933 - in reply to #773) (#933) Top

vopani



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vopani posted @ 2010-07-16 3:37 PM

I think this should be mentioned somewhere on the webpage, so that people who expect it, can be informed in time.

@ 2010-07-17 12:45 AM (#940 - in reply to #933) (#940) Top

amitsowani




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amitsowani posted @ 2010-07-17 12:45 AM

Best of luck to everyone, I am getting to participate after some time, hope I do well.
@ 2010-07-17 9:10 AM (#941 - in reply to #773) (#941) Top

Ziti



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Ziti posted @ 2010-07-17 9:10 AM

This was great fun, as LMI mocks always are. Special thanks to Janek, whose puzzles were exceptionally well-written and include some clever new variants.

Good luck to all! I promise you will enjoy these.
@ 2010-07-18 3:16 AM (#943 - in reply to #773) (#943) Top

motris



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motris posted @ 2010-07-18 3:16 AM

I'll second Ziti's comment that this was an excellent test with many great puzzles in these styles. Many clever work-ins and a good challenge overall. Thanks janoslaw.
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