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Riad Khanmagomedov's April Contest — 8th to 18th April 2020166 posts • Page 4 of 7 • 1 2 3 4 5 6 7
@ 2020-04-13 9:03 PM (#27966 - in reply to #27959) (#27966) Top

Riad Khanmagomedov



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Riad Khanmagomedov posted @ 2020-04-13 9:03 PM

EoHeongMat - 2020-04-13 12:12 PM

Puzzle 5:
1. In example, is there reason that [0,0] should be used?
2. Should "ALL" dominoes are placed? If so, why is there no [1,1]?

There's an obvious typo. In the lower right corner should be 1-1. Please note that I do everything manually and do not access programs. I'll fix the example and update the file.
@ 2020-04-13 9:03 PM (#27967 - in reply to #27949) (#27967) Top

Kithyane



Posts: 49
2020
Country : France

Kithyane posted @ 2020-04-13 9:03 PM

WTM - 2020-04-11 10:28 PM

Puzzle 8: As I understand it, the sides along the entire grid don't need to be filled in, is that correct? Otherwise it would have no solutions, if I'm looking correctly. But still, even if they don't all have to be filled in, can at least some of them be filled in?


I managed to solve it considering that every external border is a wall (like in the example).
@ 2020-04-13 9:05 PM (#27968 - in reply to #27958) (#27968) Top

Riad Khanmagomedov



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Riad Khanmagomedov posted @ 2020-04-13 9:05 PM

anurag - 2020-04-12 11:43 PM

Puzzle 11: If the solution has multiple occurences of a card, but only one that does not share borders with other cards, is it acceptable?

Cards may not overlap.
@ 2020-04-13 9:55 PM (#27969 - in reply to #27868) (#27969) Top

Administrator



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Country : India

Administrator posted @ 2020-04-13 9:55 PM

Updated Puzzle Booklet


An updated version of the Puzzle Booklet is available now.

Change:
Puzzle 5 : Example fixed

@ 2020-04-13 9:57 PM (#27970 - in reply to #27868) (#27970) Top

TiiT



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TiiT posted @ 2020-04-13 9:57 PM

What happens if I miscalculate something in optimizers? Lets put here some concrete examples to make my question more clear:

1. Puzzle 10 Town. What if I accidentally sum up the given digits wrong? But the rest of the puzzle is correct.

2. Puzzle 11 Diamonds. What if I count the amount of diamonds wrong, but my solution is valid and is described correctly with (WWRWRW...)

3. Puzzle 12 Opti-battle with losses. What if I calculate the equation wrong although the puzzle describe is valid.

4. Puzzle 12 Opti-battle with losses. What if I miss some of the possible solutions. Let's say I get 3 solutions, but I actually have 6. (Therefore my equation also gets wrong). But the puzzle created is valid.

5. Puzzle 11 Diamonds. Can 2 cards touch each other by corners?
@ 2020-04-13 11:39 PM (#27971 - in reply to #27970) (#27971) Top

Riad Khanmagomedov



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Riad Khanmagomedov posted @ 2020-04-13 11:39 PM

TiiT - 2020-04-13 9:57 PM

What happens if I miscalculate something in optimizers? Lets put here some concrete examples to make my question more clear:

1. Puzzle 10 Town. What if I accidentally sum up the given digits wrong? But the rest of the puzzle is correct.

2. Puzzle 11 Diamonds. What if I count the amount of diamonds wrong, but my solution is valid and is described correctly with (WWRWRW...)

3. Puzzle 12 Opti-battle with losses. What if I calculate the equation wrong although the puzzle describe is valid.

4. Puzzle 12 Opti-battle with losses. What if I miss some of the possible solutions. Let's say I get 3 solutions, but I actually have 6. (Therefore my equation also gets wrong). But the puzzle created is valid.

5. Puzzle 11 Diamonds. Can 2 cards touch each other by corners?

1-4. All calculations are double-checked, don't worry.
5. Cards can touch each other by corners.

Edited by Riad Khanmagomedov 2020-04-13 11:40 PM
@ 2020-04-13 11:41 PM (#27972 - in reply to #27970) (#27972) Top

anurag



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anurag posted @ 2020-04-13 11:41 PM

TiiT - 2020-04-13 9:57 PM

What happens if I miscalculate something in optimizers? Lets put here some concrete examples to make my question more clear:

1. Puzzle 10 Town. What if I accidentally sum up the given digits wrong? But the rest of the puzzle is correct.

2. Puzzle 11 Diamonds. What if I count the amount of diamonds wrong, but my solution is valid and is described correctly with (WWRWRW...)

3. Puzzle 12 Opti-battle with losses. What if I calculate the equation wrong although the puzzle describe is valid.


As always, there will be no problem with that. It is only a little overhead for the author to report back claimed and actual scores.

4. Puzzle 12 Opti-battle with losses. What if I miss some of the possible solutions. Let's say I get 3 solutions, but I actually have 6. (Therefore my equation also gets wrong). But the puzzle created is valid.


Score should be based on the submitted solution.


5. Puzzle 11 Diamonds. Can 2 cards touch each other by corners?


Cannot.


Edited by anurag 2020-04-13 11:42 PM
@ 2020-04-13 11:43 PM (#27973 - in reply to #27868) (#27973) Top

anurag



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anurag posted @ 2020-04-13 11:43 PM

I did not see your reply before posting mine. Cards can touch? In the squares puzzle, squares cannot touch. I thought the same rule applies here. Are you sure?
@ 2020-04-14 12:58 AM (#27974 - in reply to #27868) (#27974) Top

TiiT



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TiiT posted @ 2020-04-14 12:58 AM

It would be nice if only author answers the questions. In that way we can be sure that the answers are correct and it doesn't get messy.

Thanks Riad for the answers!
@ 2020-04-14 1:39 AM (#27976 - in reply to #27972) (#27976) Top

Mihalich



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Mihalich posted @ 2020-04-14 1:39 AM

??????

Subject: Re: Riad Khanmagomedov's April Contest — 8th to 16th April 2020 @ 2020-04-09 2:21 PM ( #27898 - in reply to #27892 ) ( #27898 )

Puzzle 11:
1 ) Can the corners of the cards touch?
2 ) Can diamonds go one on top of the other?

1 ) Yes
2 ) In the example, cards 3 and 5 share a common diamond.
@ 2020-04-14 2:31 AM (#27977 - in reply to #27868) (#27977) Top

cyberx60



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Country : United States

cyberx60 posted @ 2020-04-14 2:31 AM

In puzzle 8 of the contest does the direction on the bottom, 2nd from left, end before the edge of grid intentionally, or is this an error?
@ 2020-04-14 9:38 AM (#27978 - in reply to #27868) (#27978) Top

chaotic_iak




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chaotic_iak posted @ 2020-04-14 9:38 AM

Considering the "white streets may not form 2x2 area" rule in 10 is actually not part of the Town ruleset, but a requirement for the author (that we must form a unique Town puzzle, which happens to have no 2x2 white area), I'll have to ask the same for 11 too: is the rule "cards may not share borders" part of the Diamonds ruleset (if there are multiple ways to reconstruct the contours, but only one of them also has no cards sharing borders, then the solution is unique) or is it a requirement for the author (the solution in the previous case is not unique)?
@ 2020-04-14 10:52 AM (#27979 - in reply to #27974) (#27979) Top

anurag



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anurag posted @ 2020-04-14 10:52 AM

TiiT - 2020-04-14 12:58 AM

It would be nice if only author answers the questions. In that way we can be sure that the answers are correct and it doesn't get messy.

Thanks Riad for the answers!


Your quick retort was rude and unnecessary, if not ridiculous. On the contrary of what you think, and if you have not been following, the participants are NOT the source of mess. Instead they are the ones who are doing the admins' job.
Everyone is confused with many of the puzzles. Even after all that tedious messaging back and forth, look at the last question here - Chaoticiak has still got the rules of puzzle 10 wrong (or I got it wrong). I am also not sure yet as the 'suggested' but not confirmed second version appears to be a trivial puzzle. You can imagine how shabbily all of this was managed. The earliest queries regarding Puzzle 10, for example, came from me and they were selectively taken down for no reason!

The random change in Puzzle 11 is unacceptable just 2 days shy of the deadline. It would be unfair as I had not considered corner touch until now.
@ 2020-04-14 12:07 PM (#27980 - in reply to #27968) (#27980) Top

anurag



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anurag posted @ 2020-04-14 12:07 PM

Riad Khanmagomedov - 2020-04-13 9:05 PM

anurag - 2020-04-12 11:43 PM

Puzzle 11: If the solution has multiple occurences of a card, but only one that does not share borders with other cards, is it acceptable?

Cards may not overlap.


I do not understand how that answers the question. If language is a problem, the admin should own the responsibility of a mediator.
@ 2020-04-14 12:14 PM (#27981 - in reply to #27978) (#27981) Top

anurag



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anurag posted @ 2020-04-14 12:14 PM

chaotic_iak - 2020-04-14 9:38 AM

Considering the "white streets may not form 2x2 area" rule in 10 is actually not part of the Town ruleset, but a requirement for the author (that we must form a unique Town puzzle, which happens to have no 2x2 white area)


I think I understand your third version. Is it different from both versions described here previously? I think it is. One can take the liberty to innovate, given that the instructions were woefully inadequate.
@ 2020-04-14 12:58 PM (#27982 - in reply to #27868) (#27982) Top

Swagatam



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2020
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Swagatam posted @ 2020-04-14 12:58 PM

Puzzle 8: Hex maze
Answer format is total number of obtuse angles of the path. Do I have to count (the number of obtuse angles) both sides of each turn of the path?
@ 2020-04-14 7:07 PM (#27985 - in reply to #27982) (#27985) Top

cyberx60



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cyberx60 posted @ 2020-04-14 7:07 PM

Swagatam - 2020-04-13 1:58 PM

Puzzle 8: Hex maze
Answer format is total number of obtuse angles of the path. Do I have to count (the number of obtuse angles) both sides of each turn of the path?


An obtuse angle measures strictly between (and not including) 90 and 180 degrees, so even if you did count both sides, you should arrive at the same answer.
@ 2020-04-14 11:11 PM (#27986 - in reply to #27974) (#27986) Top

TiiT



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TiiT posted @ 2020-04-14 11:11 PM

TiiT - 2020-04-14 9:58 PM

It would be nice if only author answers the questions. In that way we can be sure that the answers are correct and it doesn't get messy.

Thanks Riad for the answers!



Sorry about my expression. I agree that solvers make an important part in here.
So I put it in this way.
Maybe it would be nice if only those solvers are responsing who understand the rules (in addition to authors responses). It doesn't make sense if the same person answers the questions and at the same time repeats that he doesn't understand anything.
@ 2020-04-15 12:07 AM (#27987 - in reply to #27981) (#27987) Top

anurag



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anurag posted @ 2020-04-15 12:07 AM

Puzzle 10: As it stands now, any clarity remains elusive. There are at least three versions that the contestants could innovate. Two that are straightforward, and a third that asks me to create a town that was a clouds by definition and clues, but is actually somehow a town by solution. So, I guess it would be preferable to accept a solution based on any of the three versions as the participant likes.
@ 2020-04-15 3:30 PM (#27988 - in reply to #27868) (#27988) Top

anurag



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anurag posted @ 2020-04-15 3:30 PM

Apparently, either puzzle 10, or the whole contest, is scrapped.
@ 2020-04-15 5:10 PM (#27989 - in reply to #27868) (#27989) Top

kiwijam



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kiwijam posted @ 2020-04-15 5:10 PM

Sorry Anurag, you are filling this thread with complaints. You've posted 30 times already: take a breath, go for a walk.
I think Riad does a wonderful job every year, creating a contest for our enjoyment, even if there are small language difficulties.
Ivan's comment agrees with Riad's version, there is no ambiguity any more.
Let me repeat the instructions in my own words, which might help?
@ 2020-04-15 5:28 PM (#27990 - in reply to #27868) (#27990) Top

kiwijam



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kiwijam posted @ 2020-04-15 5:28 PM

chaotic_iak had a good question: is "Borders of cards cannot have common segments" used when finding the unique contours, or a condition that the unique solution must have?
I assume the latter, see below.
These are not full rules, just helping to explain the official rules.

10.
Construct a normal Clouds/Radar/Regenwolken/Town puzzle. (e.g. https://www.janko.at/Raetsel/Regenwolken/index.htm)
It must have a unique solution.
That unique solution cannot have any 2x2 white areas.
Maximize N, the number of white words if this was a crossword grid.

11.
Place diamonds into a grid (no larger than 16x13).
There must be exactly one possible way to place the 9 transparent cards to match all of the diamonds.
That unique solution cannot have two cards sharing an edge, but they can overlap or touch at corners.
Minimize the number of diamonds.

12.
Place some or all of the blue pieces in a 7x7 grid such that they don't touch each other, not even diagonally.
Choose some or all of the black ships to be placed.
N is the number of solutions for placing your black ships.
We don't actually define the black ships in the answer format, but they are found by subtracting the number of blue pieces from the ABCD totals.
@ 2020-04-15 6:11 PM (#27991 - in reply to #27868) (#27991) Top

athin




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athin posted @ 2020-04-15 6:11 PM

For puzzle 11, I have a feeling that sharing an edge is a part of Diamond ruleset instead. This is based on Riad's September 2012 contest if the puzzle is indeed reused: https://logicmastersindia.com/lmitests/dl.asp?attachmentid=269&view=... (puzzle 1).

@ 2020-04-15 6:33 PM (#27992 - in reply to #27990) (#27992) Top

anurag



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anurag posted @ 2020-04-15 6:33 PM

kiwijam - 2020-04-15 5:28 PM

chaotic_iak had a good question: is "Borders of cards cannot have common segments" used when finding the unique contours, or a condition that the unique solution must have?
I assume the latter, see below.
These are not full rules, just helping to explain the official rules.

10.
Construct a normal Clouds/Radar/Regenwolken/Town puzzle. (e.g. https://www.janko.at/Raetsel/Regenwolken/index.htm)
It must have a unique solution.
That unique solution cannot have any 2x2 white areas.
Maximize N, the number of white words if this was a crossword grid.

11.
Place diamonds into a grid (no larger than 16x13).
There must be exactly one possible way to place the 9 transparent cards to match all of the diamonds.
That unique solution cannot have two cards sharing an edge, but they can overlap or touch at corners.
Minimize the number of diamonds.

12.
Place some or all of the blue pieces in a 7x7 grid such that they don't touch each other, not even diagonally.
Choose some or all of the black ships to be placed.
N is the number of solutions for placing your black ships.
We don't actually define the black ships in the answer format, but they are found by subtracting the number of blue pieces from the ABCD totals.


Funny.
@ 2020-04-15 7:11 PM (#27993 - in reply to #27868) (#27993) Top

Swagatam



Posts: 45
2020
Country : India

Swagatam posted @ 2020-04-15 7:11 PM

Is this possible that if I put all the numbers outside the grid (which indicate the number of shaded cells) it may lead to multiple solutions? [For Town puzzle or any of this kind of puzzle]
Riad Khanmagomedov's April Contest — 8th to 18th April 2020166 posts • Page 4 of 7 • 1 2 3 4 5 6 7
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