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Posts: 35
Location: The Netherlands | Administrator - 2014-03-20 10:42 PM
Passwords removed from booklets. There is no plan to upload solutions this time. If anyone needs solutions, please post here.
So what was the rule in exploratory galaxies? I'm still stumped! |
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Typed Logic Author
Posts: 241
Location: Indonesia | Black: Center of symmetry of a rectangle
White: Center of symmetry of a non-rectangle
Gray: Not center of symmetry (the shape itself can be not symmetric) |
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Posts: 10
Location: Japan | I spent 90min. of Spiral Galaxies Exploratory.
At first, I found regions with a gray point had ONE extra cell.
It is my regret that I tried match-making subsequently...
Even though they may not be suited for Beginners' contests, they are nice surprising puzzles themselves.
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Posts: 10
Location: Germany | I am also interested in the rules for Exploratory Spiral Galaxies.
@chaotik_iak: With your rules, the example has many solutions. For example, make the black and white regions as small as possible (each only 1 or two cells) and then you still have many ways to make grey regions. |
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 1788
 
Location: India | Semax - 2014-03-22 12:39 PM
I am also interested in the rules for Exploratory Spiral Galaxies.
@chaotik_iak: With your rules, the example has many solutions. For example, make the black and white regions as small as possible (each only 1 or two cells) and then you still have many ways to make grey regions.
You can't make a white region 1/2 cells because that'd make it a rectangle. I think a white region would have to be a minimum of 4 cells (S tetromino) to follow the non-rectangle rule. |
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Posts: 3
Location: Japan | I need solutions.
I'm not good in both puzzles... |
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Posts: 7
Location: United States | Are the correct solutions shown somewhere? I never succeeded in submitting a correct answer for SG #5 even tho' I can't see anything wrong with my solutions (I came up with ambiguity in UL corner).
thanks for hours of fun |
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | you can upload your solved solution here, so that we can see where you are going wrong :)
BTroisi - 2014-03-24 5:02 AM
Are the correct solutions shown somewhere? I never succeeded in submitting a correct answer for SG #5 even tho' I can't see anything wrong with my solutions (I came up with ambiguity in UL corner).
thanks for hours of fun |
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Posts: 1
Location: United States | I'm really confused--what is the "Cat bonus"? I have no idea why I didn't receive it for Tetrominoes... |
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 1788
Location: India | jiangty - 2014-03-24 1:48 PM
I'm really confused--what is the "Cat bonus"? I have no idea why I didn't receive it for Tetrominoes...
Cat Bonus is short for Category Bonus which is explained in the Instruction Booklet. There's some bug in the score page, and you are eligible for the bonus. We will look into it and rectify it as soon as possible. |
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Posts: 6
Location: Poland | I would be grateful if you could see my "cat bonus" as well - solved all the tetrominos in time, so probably should get the full score for that? Best - Bartek |
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Posts: 7
Location: United States | About Tetrominoes #5
I have these rows: K: LLTIIIIOO (alternatively TZZIIIIOO) L: ITTTIZZIL M: LLLTTTLL
Which seemed to have an answer of 2142 (or 1242) 131211 332
But neither answer was accepted. Tried a couple of times to see if I fat-fingered them.
Resolved MANY times but always came up with this answer.
Where have I gone wrong? |
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Posts: 80
Location: Canada | Your first and third answers are wrong. The rule says each tetromino may contain at most 1 letter. With the first 2 answers you gave me, I cannot satisfy the L in R4C4. Without seeing a photo of your solution, I cannot comment further, but the error is probably the entire left hand side, pretty much the whole first 4 columns.
As a general rule of thumb, if you got more than 1 solution, both of them are almost certainly wrong, and the error is usually not in the ambiguity itself, but somewhere further back that gets you to this ambiguity in the first place. (Unless of course the error is that you missed part of the rules.)
Edited by achan1058 2014-03-25 12:55 AM
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Location: India | prasanna16391 - 2014-03-24 2:15 PM
jiangty - 2014-03-24 1:48 PM
I'm really confused--what is the "Cat bonus"? I have no idea why I didn't receive it for Tetrominoes...
Cat Bonus is short for Category Bonus which is explained in the Instruction Booklet. There's some bug in the score page, and you are eligible for the bonus. We will look into it and rectify it as soon as possible.
bartunio - 2014-03-24 10:18 PM
I would be grateful if you could see my "cat bonus" as well - solved all the tetrominos in time, so probably should get the full score for that? Best - Bartek
Fixed. |
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Posts: 35
Location: India | I'm unable to view my Tetrominoes submissions |
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Location: India | |
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Location: India | The pdf files from Yin-Yang variations contest site are not accessible.
They can be downloaded from here and here. Thanks Andrey for sharing. |
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | whats the password for the booklet of yin-yang variations contest ? |
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WPMM Author
Posts: 66
Location: Hungary | swaroop2011 - 2014-05-03 8:24 PM
whats the password for the booklet of yin-yang variations contest ?
Hi!
BW02diogen |
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | Valezius - 2014-05-03 8:35 PM
swaroop2011 - 2014-05-03 8:24 PM
whats the password for the booklet of yin-yang variations contest ?
Hi!
BW02diogen
Thanks |
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Posts: 35
Location: India | In the first example of Yin Yang Variations Contest, there is another solution possible with the answer key as BBWWW, BWBBW.. Is this correct? |
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | mathcrazy - 2014-05-04 12:19 PM
In the first example of Yin Yang Variations Contest, there is another solution possible with the answer key as BBWWW, BWBBW.. Is this correct?
Yes i think. Even i am getting multiple solutions (as you mentioned)
Edited by swaroop2011 2014-05-04 3:08 PM
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Posts: 35
Location: India | Any pointers on how to go about solving the Count puzzle in Yin Yang Variations contest? I'm unable to get a start. The example given is too easy. |
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WPMM Author
Posts: 66
Location: Hungary | mathcrazy - 2014-05-06 8:55 PM
Any pointers on how to go about solving the Count puzzle in Yin Yang Variations contest? I'm unable to get a start. The example given is too easy.
The key is Rohan's post:
http://rohanrao.blogspot.in/2010/12/solving-black-and-white-edge-co...
There is 5 black circles in the 1st row and 3 in the last.
So there are only 2 ways:
The full right side is black and the first 5 circles in 1st row and first 3 in last row.
OR
The full left side is black and the last 5 circles in 1st row and last 3 in last row.
The second one won't work if you try it, because of the 2 in 3rd column. It leads a contradiction in 2nd column.
When you fill the edge you can solve the puzzle. (For instance you can continue in 2nd row.)
In the second one it is also possible to fill the full edge. According to the given numbers on the edge and the number 1 in C5.
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Posts: 35
Location: India | Valezius - 2014-05-06 9:07 PM
mathcrazy - 2014-05-06 8:55 PM
Any pointers on how to go about solving the Count puzzle in Yin Yang Variations contest? I'm unable to get a start. The example given is too easy.
The key is Rohan's post:
http://rohanrao.blogspot.in/2010/12/solving-black-and-white-edge-co...
There is 5 black circles in the 1st row and 3 in the last.
So there are only 2 ways:
The full right side is black and the first 5 circles in 1st row and first 3 in last row.
OR
The full left side is black and the last 5 circles in 1st row and last 3 in last row.
The second one won't work if you try it, because of the 2 in 3rd column. It leads a contradiction in 2nd column.
When you fill the edge you can solve the puzzle. (For instance you can continue in 2nd row. )
In the second one it is also possible to fill the full edge. According to the given numbers on the edge and the number 1 in C5.
Thanks! That helped! It didn't strike me before. :)
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