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09 Dress Them Up
   WSC and WPC 2017 -> WSC 2017 Instructions Booklet15 posts • Page 1 of 1 • 1
vopani
Subject: 09 Dress Them Up @ 2017-10-01 8:21 PM (#23334) (#23334) Top


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Round 9: Dress Them Up

Please post your questions about this round here.
Para
Subject: Re: 09 Dress Them Up @ 2017-10-02 2:27 PM (#23385 - in reply to #23334) (#23385) Top




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8. Kid Sudoku

The rules are a bit awkwardly formulated if they match the normal Kid Sudoku rules. Can you guys confirm that each digit indicates the maximum possible sum of continuous digits that doesn't exceed 9? The confusion is that the way the rules are written now the sequence 5136 could for example be encoded as 96, 69 or even 546 as those are all sums of continuous digits not exceeding 9 for this seqeunce, while in the standard Kid Sudoku rules it would have to be 96 as you keep adding till you no longer can without exceeding 9.
vopani
Subject: Re: 09 Dress Them Up @ 2017-10-02 3:52 PM (#23390 - in reply to #23385) (#23390) Top


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Para - 2017-10-02 2:27 PM

8. Kid Sudoku

The rules are a bit awkwardly formulated if they match the normal Kid Sudoku rules. Can you guys confirm that each digit indicates the maximum possible sum of continuous digits that doesn't exceed 9? The confusion is that the way the rules are written now the sequence 5136 could for example be encoded as 96, 69 or even 546 as those are all sums of continuous digits not exceeding 9 for this seqeunce, while in the standard Kid Sudoku rules it would have to be 96 as you keep adding till you no longer can without exceeding 9.

It is the standard Kid Sudoku rules. So, 5136 must be 96.
forcolin
Subject: Re: 09 Dress Them Up @ 2017-10-03 2:13 AM (#23406 - in reply to #23334) (#23406) Top





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16. Unique sums sudoku. "The sum of digits in cells inside every cage most equal to the total given for the cage in the upper left cell" But there are no totals given in the upper left cells.....
vopani
Subject: Re: 09 Dress Them Up @ 2017-10-03 9:05 AM (#23413 - in reply to #23406) (#23413) Top


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forcolin - 2017-10-03 2:13 AM

16. Unique sums sudoku. "The sum of digits in cells inside every cage most equal to the total given for the cage in the upper left cell" But there are no totals given in the upper left cells.....

The sums may or may not be given, as per the instructions. It is possible no sums are given like the example.
Para
Subject: Re: 09 Dress Them Up @ 2017-10-05 8:19 AM (#23510 - in reply to #23334) (#23510) Top




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6. Crossed Sudoku

Assuming Crosses can appear anywhere in the grid, may Crosses have repeated digits?

vopani
Subject: Re: 09 Dress Them Up @ 2017-10-05 10:02 AM (#23513 - in reply to #23510) (#23513) Top


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Para - 2017-10-05 8:19 AM

6. Crossed Sudoku

Assuming Crosses can appear anywhere in the grid, may Crosses have repeated digits?

Yes, that is correct.
sinchai4547
Subject: Re: 09 Dress Them Up @ 2017-10-05 8:36 PM (#23528 - in reply to #23334) (#23528) Top




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For Confused knights Sudoku

is there more solution (5 and 9 in cells r1c1 r3c1 and r1c4 r3c4)? or i miss some rule.
vopani
Subject: Re: 09 Dress Them Up @ 2017-10-05 10:07 PM (#23529 - in reply to #23528) (#23529) Top


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sinchai4547 - 2017-10-05 8:36 PM

For Confused knights Sudoku

is there more solution (5 and 9 in cells r1c1 r3c1 and r1c4 r3c4)? or i miss some rule.

'5' is present in a shaded cell, like R5C7 or R6C6. Hence, no two '5's can be placed at knight's step away from each other.
There is a '5' in R4C3, so there cannot be a '5' in R3C1.
purifire
Subject: RE: 09 Dress Them Up @ 2017-10-06 5:40 PM (#23546 - in reply to #23334) (#23546) Top



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In the IB Example, I am getting multiple solution for the Maximum Arrow Sudoku. Am I missing any rule/constraint here. The 2 and 6 in R1 and R9 are interchangeable.
vopani
Subject: RE: 09 Dress Them Up @ 2017-10-06 10:16 PM (#23550 - in reply to #23546) (#23550) Top


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purifire - 2017-10-06 5:40 PM

In the IB Example, I am getting multiple solution for the Maximum Arrow Sudoku. Am I missing any rule/constraint here. The 2 and 6 in R1 and R9 are interchangeable.

R5C5 = 6 with a circle. If you swap the 2s and 6s in R1 and R9, that arrow with '6' won't be satisfied.
purifire
Subject: RE: 09 Dress Them Up @ 2017-10-06 10:19 PM (#23551 - in reply to #23550) (#23551) Top



Odd Even & Twisted Classics (SM 16/17) Author

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vopani - 2017-10-06 10:16 PM

purifire - 2017-10-06 5:40 PM

In the IB Example, I am getting multiple solution for the Maximum Arrow Sudoku. Am I missing any rule/constraint here. The 2 and 6 in R1 and R9 are interchangeable.

R5C5 = 6 with a circle. If you swap the 2s and 6s in R1 and R9, that arrow with '6' won't be satisfied.


Why cant I have a 6 in R1C9? How does it negate the condition?
vopani
Subject: RE: 09 Dress Them Up @ 2017-10-06 10:26 PM (#23552 - in reply to #23551) (#23552) Top


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purifire - 2017-10-06 10:19 PM

vopani - 2017-10-06 10:16 PM

purifire - 2017-10-06 5:40 PM

In the IB Example, I am getting multiple solution for the Maximum Arrow Sudoku. Am I missing any rule/constraint here. The 2 and 6 in R1 and R9 are interchangeable.

R5C5 = 6 with a circle. If you swap the 2s and 6s in R1 and R9, that arrow with '6' won't be satisfied.


Why cant I have a 6 in R1C9? How does it negate the condition?

R1C9 must be '6', as in the solution.
If you swap R1C7 and R1C9, and corresponding R9C7 and R9C9, the arrow starting at R5C5 with a '6' would have digits 3, 3, 5, 2 along its arrow, and hence, does not satisfy the 'maximum' rule.

If its still not clear, it would help if you could share your solution which doesn't match the one in the IB.
akash.doulani
Subject: Re: 09 Dress Them Up @ 2017-10-08 1:15 PM (#23573 - in reply to #23334) (#23573) Top


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Rhombus Sudoku
Is it necessary that there will be 9 rhombus and that each rhombus will have 9 different numbers in the middle ?
vopani
Subject: Re: 09 Dress Them Up @ 2017-10-08 2:04 PM (#23575 - in reply to #23573) (#23575) Top


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akash.doulani - 2017-10-08 1:15 PM

Rhombus Sudoku
Is it necessary that there will be 9 rhombus and that each rhombus will have 9 different numbers in the middle ?

No.
That is just the theme of the IB example :-)
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