Talk:Cross Sums
From Wikipedia, the free encyclopedia
Why is this the mathematical equivalent of a crossword? Logically if anything is, then it's a crossnumber (or "Number Word" as the Daily Mail used to call it inappropriately).
But this certainly can be considered one kind of mathematical 'crossword', along with the plain old crossnumber and others. -- Smjg 13:04, 16 September 2005 (UTC)
- I agree with you on this one - in fact, apart from the grid, I see little correlation between Cross Sums and crosswords at all. Perhaps Figure Logic is closer, and maybe those Crossmath puzzles Dell Magazines publishes are more along the lines of a crossword, but ultimately I see completely different skillsets needed to solve all of them as opposed to crosswords. - ZM Zotmeister 18:57, 16 September 2005 (UTC)
I don't think the link to http://www.kakuropuzzle.com/ belongs in this topic. The puzzles generated by the program don't even have unique solutions, and hence are not true Kakro. GLmathgrant 04:49, 2 November 2005 (UTC)
- Confirmed and agreed. I'll be bold. - ZM
- Zotmeister 15:55, 2 November 2005 (UTC)
Where is it said the Japanese name is Kakro? Technically that's not even writable in the Japanese character set, the closest approximation being カクロ (kakuro), and one puzzle magazine actually using the katakana カックロ (kakkuro). The second gets around 100 times the initial Google hits of the former, including nikoli.co.jp which seems to host a lot of those sort of puzzles.
In fact, a quick check finds the Japanese page listed as カックロ (kakkuro) and no listings for kakuro. Still, it would be nice to have some kind of explanation as to what it actually means. Confusing Manifestation 16:21, 24 January 2006 (UTC)
- Okay, I just did some patrolling, and what I now see is evidence of "peer pressure". You mention Nikoli. They are the company that created the name カックロ, and they until just recently consistently transliterated their own title to romaji as Kakro (the 'u' is silent anyway). If you visit Nikoli's English pages, what you'll now see is inconsistent; their graphics, tutorials, and Puzzle Japan offerings all still say "Kakro", but their textual content and book sales form now read "Kakuro". Best guess: the misspelling has become sufficiently widespread that they decided to use the incorrect one on their English pages to make sure people find their site when searching for the wrong term!
- Until such a time that Nikoli changes all their "Kakro" references to "Kakuro", I believe the presentation of "Kakro" in the article is still correct.
- At any rate, the "クロ" part is short for 'クロス', the English word 'cross'. (There's no 'u' in that either.) - ZM
- Zotmeister 21:36, 24 January 2006 (UTC)
Contents |
[edit] Kakuro Combinations
Hi,
I created this page of Combinations for Kakuro: http://www.kevinpluck.net/kakuro/KakuroCombinations.html
I would like to submit it on this page if you all agree.
Thanks.
- That - if accurate (I haven't completely proofread it) - is decidedly handier than the guide currently (and indirectly) linked to in the References. I for one think it would be a good idea to place a link to that chart directly in the Possible Sums section of the article. - ZM
- Zotmeister 18:15, 17 February 2006 (UTC)
- Thanks Zotmeister, many people have found the table very useful some have gone as far as to describe it beautiful!
- There is a beautifully colored Spickzettel for sums to 44 and eight cells with Kevin Pluck. That is alone optically a beauty. (Translated from above)
- Yaaaay 21:00, 21 February 2006 (UTC)
- If there is no further comments I shall add a short note to the Possible Sums section tomorrow with a link to the above.--Yaaaay 09:11, 1 March 2006 (UTC)
[edit] Too many links
Does anyone else feel that far too many "Play kakuro here" links are being added? The point of external links is more to provide additional reference to the the article, not advertise a bunch of sites related to the topic that could just as easily be found with a Google search. Confusing Manifestation 01:10, 4 May 2006 (UTC)
- Right, I am proposing removing all of the links save for: kakuro.com and kakuro.fluctuat.net. Why these two? Because they have semi-decent Alexa rankings and focus on the game. I will also add a link to Nikoli, which is currently absent. The rest of the links are just advertising and don't enhance the article in any way. Any complaints? Confusing Manifestation 11:43, 24 May 2006 (UTC)
[edit] Arrow Numbers
In Variants you write Arrow Numbers as a variant. But I search in internet and I couldn’t find any Arrow Numbers with characteristics as you describe. Where I find this Arrow Numbers? Miguel Monsanto 13:57, 25 Jul 2006
I'd like to second this. When I first found "Cross Sums" puzzles (mid 1980s in the UK), they had this additional non-repeating constraint. Where does the name "Arrow Numbers" come from? [David Brain]
[edit] Change article title to Kakuro
The name Kakuro seems to be used more commonly now than the name Cross Sums (or the two are combined into Kakuro Cross Sums), so this article title should probably be changed to either Kakuro or Kakuro Cross Sums. If you search for Kakuro and "Cross Sums" on Google, there are more results for Kakuro, and most of the results for "Cross Sums" are from websites with Kakuro in the title, or the sites mention Kakuro.
- Reluctantly, I have to agree. The name Kakuro has penetrated the market rather completely at this point. --Suttkus 16:16, 9 November 2006 (UTC)
[edit] NP complete?
The only reference that Google knows to the claimed proof of NP-completeness of Kakuro is in this article. It references a pdf file that is no longer found. Is this a hoax?
