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Posts: 17
Location: United Kingdom | Doesn't the Ambigram Skyscrapers example have two solutions? Won't 0123,3210,1302,2031 also suffice or am I missing a rule? |
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Posts: 33
Location: Turkey | That won't satisfy the "looking the same when turned upside down" part. |
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Location: India | MellowMelon - 2011-05-09 11:36 PM
Is the Kropki example not uniquely solvable? It seems that you can swap 1s with 5s and 2s with 4s to get a different answer.
A Carton Mutant - 2011-05-10 12:06 AM
Shapes need to contain at least one part of the snake. I thought it was implied by the rules, but it seems I was being vague.
IB with these 2 changes uploaded. |
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Posts: 31
Location: United Kingdom | Do you have the exact UTC time window for this contest?
If it has not been set, could it the end time be at least 1am GMT/UTC (2am BST) please, to enable as many UK competitors as possible to compete? Thank-you. |
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Location: India | PuzzleScot - 2011-05-10 3:52 PM
Do you have the exact UTC time window for this contest?
If it has not been set, could it the end time be at least 1am GMT/UTC (2am BST) please, to enable as many UK competitors as possible to compete? Thank-you.
This will start at 00:00:01 AM Saturday GMT (same as all LMI tests). But we are making a change to the end time based on several complaints / suggestions.
The test will be open for 48 hours, that means players can start upto 48 hours. Once a player starts, he will always have 101 minutes to submit (so in effect it will end at 01:41:01 AM GMT)
Hope it is fine. If you want a longer window, we can start earlier or end later or both. Let us know. |
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Triplets & Triangles Author
Posts: 63
Location: United Kingdom | Further to Gareth's query, I believe that the Ambigram Skyscrapers puzzle has 3 solutions. The third solution is 0123,3210,1032,2301. The Persistence of Memory solution puzzled me and I think the rules need to be clarified. I assumed that the orientation of the shape did not matter and that, therefore, all 4 shapes were identical. Under this interpretation, the given solution does not satisfy the rule that each shape should have snake parts with the same appearance. There is at least one valid solution using my "false" interpretation.
Please clarify these points. |
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Location: India | About Ambigram Skyscrapers
The rule says "The solution, if written in the above notation, must look the same when the page is turned upside down."
This is Gareth's alternate solution (with page turned upside down)
David's alternate solution (with page turned upside down)
Both of them don't satisfy the rule.
The given solution is
and it looks same when rotated.
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Mean Minis (2020) Author
Posts: 774
Location: India | David McNeill - 2011-05-10 6:28 PM
The Persistence of Memory solution puzzled me and I think the rules need to be clarified. I assumed that the orientation of the shape did not matter and that, therefore, all 4 shapes were identical. Under this interpretation, the given solution does not satisfy the rule that each shape should have snake parts with the same appearance. There is at least one valid solution using my "false" interpretation. Here, 2x1 block is different from 1x2 block. |
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Location: India | Apart from 2X1 blocks being different from 1X2 blocks, the path of the snake also must be exactly same (rotation not allowed)
If some 1X1 blocks were given :
| For example, this is a valid. | | This is NOT valid |
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Posts: 33
Location: Turkey | The reason I created the example with 1x2 blocks and 2x1 blocks was the hope that them being different would be noticed. Guess not. If two blocks have exactly the same shape (no rotation, no nothing), they have the same appearance regarding snake parts.
Ambigram: I do not expect anyone to actually solve the puzzle using that fancy font. :) However, the rule "The solution, if written in the above notation, must look the same when the page is turned upside down." helps. |
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | hey in the Deformable Kropki i think there are 2 solutions.
the 3's and 5's are interchangeable at R4C1 R4C2 AND R5C1 R5C2. |
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Location: India | swaroop2011 - 2011-05-10 8:47 PM
hey in the Deformable Kropki i think there are 2 solutions.
the 3's and 5's are interchangeable at R4C1 R4C2 AND R5C1 R5C2. R3C1 is 2 and R4C1 will be 3. That is not valid since there is no dot between R3C1 and R4C1. |
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | ok
it means that reverse rule also applies in Deformable Kropki.
Edited by swaroop2011 2011-05-10 9:24 PM
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Location: India | swaroop2011 - 2011-05-10 9:13 PM
ok
it means that reverse rule also applies. That is so obvious from the rules. |
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | In Coral rotator ,
does whil rotating the page upside down makes 2 and interchangeable.
And in Symmetric Loop
in the first regiion that is in column 1 and 2.
the loop is U shape but at R3 it is Z shape BUt the rule says it is symmetric how? |
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Triplets & Triangles Author
Posts: 63
Location: United Kingdom | Thanks for clarification. I hope my mistakes will not be made by any competitors in the real thing. |
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Mean Minis (2020) Author
Posts: 774
Location: India | swaroop2011 - 2011-05-10 9:25 PM
In Coral rotator , does whil rotating the page upside down makes 2 and interchangeable. Yes 2 becomes 3 on page turned upside down, and vice-versa
And in Symmetric Loop
in the first regiion that is in column 1 and 2.
the loop is U shape but at R3 it is Z shape BUt the rule says it is symmetric how? Just look at the portion of the loop inside the marked areas. It should be symmetric, i.e., if you rotate the marked area by 180 degrees, you still get the same loop portion inside the area. |
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Location: India | rakesh_rai - 2011-05-10 10:11 PM
swaroop2011 - 2011-05-10 9:25 PM
In Coral rotator , does whil rotating the page upside down makes 2 and interchangeable. Yes 2 becomes 3 on page turned upside down, and vice-versa
Also, 4 becomes 7 and vice versa. Same with 6 and 9.
Remaining digits 0 1 5 8 don't change when turned upside down. |
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WSPC Organizer
Posts: 739
Location: India | In Superimposed Loop, can both the grids contain a black cell in the same position? |
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Posts: 33
Location: Turkey | Indeed. Just their superimposed form is given, the two grids are actually independent. They do not put any constraints on each other. |
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Posts: 33
Location: Turkey | Small clarification: Sorry for making the diagram borders bold on the Symmetric Loop example, it led to some confusion with the actual regions. Contest puzzles do not have them bolded. |
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Location: India | Puzzle Booklet uploaded. It has 11 pages, each page has puzzles (no cover page)
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Location: India | Starting this test, we are making one change
If somebody doesn't want to include this test's results in LMI Ratings, they must unselect the checkbox.
After clicking on "Start", the checkbox will be invisible.
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Odd Even & Twisted Classics (SM 16/17) Author
Posts: 460
Location: India | Administrator - 2011-05-13 9:44 PM
Starting this test, we are making one change
If somebody doesn't want to include this test's results in LMI Ratings, they must unselect the checkbox.
After clicking on "Start", the checkbox will be invisible.
To add to what the Admin said, if a player does not uncheck the box then irrespective of whether they submit the answers or not, their scores will be taken into consideration for the ranking and that can affect their standings too.
Rishi |
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Posts: 199
Location: United States | Thanks for a very fun test that went by too fast (I guess 101 is a rotationally symmetric number of minutes, but I think we'll all comment that we would have loved more time to be MAY-nipulated). Still, I worked a little past the test to finish everything up and enjoyed it all. |
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WSPC 2017 • Schedule • Participation • Location • WSC • WPC • Contact •Search •Recent
MAYnipulation — LMI May Puzzle Test — 14th and 15th May
