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| == Solutions over multiple lines ==
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| I visited the site following the link in your comments on Richard Wiseman's most recent Friday Puzzle solution, and thought I'd see if I could contribute.
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| However, I can't contribute a solution because the wiki won't accept a solution that takes more than one line. For example, this doesn't work:
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| <pre>{{Solution |
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| solution
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| over
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| multiple
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| lines
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| }}</pre>
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| Pretty much all solutions will require multiple lines, so this is a real problem. I assume a "solution" means an answer with working, whereas an "answer" is just the answer by itself.
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| Below is my solution to the [[7 orbs]] puzzle, which I tried to contribute:
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| <pre>
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| Let A = set of orbs for which there are 3 or more others the same colour.
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| Let B = set of orbs for which there are 1 or 2 others the same colour.
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| Let X = set of orbs for which there are no others the same colour.
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| Goal is to prove that some orb is in A.
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| Possible combinations:
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| (using the shorthand that A denotes an orb that's in A, etc)
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| A A A A A A A
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| A A A A A A X
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| A A A A A B B
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| A A A A A X X
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| A A A A B B B
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| A A A A B B X
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| A A A A X X X
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| Label the orbs 1, 2, 3, 4, 5, 6, 7 and test 1&2, 3&4, 5&6.
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| Comparing the results of testing those three pairs with the possible combinations, you can easily show that:
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| If two tested pairs glow the same colour, all members of those pairs are in A
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| If only one of the three tested pairs glows, members of that pair are in A
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| If two tested pairs glow different colours and the other doesn't glow, orb 7 is in A
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| If no tested pairs glow, orb 7 is in A.
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| In all cases, three tests suffice to prove that some orb is in A.
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| The only other thing required is to prove that two tests are not necessarily sufficient, which is trivial.
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| </pre>
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| Is that the sort of thing you're looking for? [[User:Zerrakhi|Zerrakhi]] 12:16, 11 October 2010 (EDT)
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| : Yes that is the sort of thing I'm looking for. I'll see if I can fix the multiple lines problem. [[User:Oscarlevin|Oscarlevin]] 15:06, 11 October 2010 (EDT)
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| : So I can't seem to replicate your problem. Is it just that the lines are not breaking? Like this:
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| {{Solution |
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| solution
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| over
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| multiple
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| lines
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| }}
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| : Because that can be fixed will a line break between them, as in:
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| {{Solution |
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| solution
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| over
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| multiple
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| lines
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| }}
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| : Or is there some other problem? [[User:Oscarlevin|Oscarlevin]] 15:25, 11 October 2010 (EDT)
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| ::The problem wasn't with your multiple lines, it was with the = sign. Templates allow you to have named parameters, which you assign with =. I don't know if there is a workaround for this. [[User:Oscarlevin|Oscarlevin]] 15:41, 11 October 2010 (EDT)
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| ::: Ah. Never thought of that. I just tested in preview mode, and found that nowiki tags around the = sign seemed to work. I've written something up on the [[Help:Editing | Editing Help]] page. [[User:Zerrakhi|Zerrakhi]] 19:27, 11 October 2010 (EDT)
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| == No link in email ==
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| The email received upon registration, the one containing the words "open this link in your browser", does not actually contain any links or URLs to open! [[User:Zerrakhi|Zerrakhi]] 12:27, 11 October 2010 (EDT)
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| : Did the email you get contain a bunch of <nowiki><math></math></nowiki> tags? I'm using an extension that switches dollar signs to math mode (ala LaTeX), and it has screwed up a lot of the system messages. I'll see if I can fix this too. [[User:Oscarlevin|Oscarlevin]] 15:06, 11 October 2010 (EDT)
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| :: Yes, that's right. [[User:Zerrakhi|Zerrakhi]] 19:27, 11 October 2010 (EDT)
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| ::: This should be fixed now. Just testing a few things out. [[User:Test1|Test1]] 22:03, 11 October 2010 (EDT)
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| == More questions ==
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| I'm wondering why only a few puzzles are in the [[:Category:Needs_solution | needs solution]] category, and likewise for other similar categories. What's special about ''those'' puzzles in particular?
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| Because the [[7 orbs]] puzzle is listed first on the front page, I assumed it was representative, and that all puzzles would have a hint, answer and solution in the same format. Now that I've seen that's not the case, I'm less sure about how I can contribute further. (Except by asking pointed questions, of course.) [[User:Zerrakhi|Zerrakhi]] 09:38, 12 October 2010 (EDT)
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