All 2 entries tagged Suraromu

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August 19, 2011

Friday Puzzles #118

So I’m very glad to be able to say that once more I’m a contributor to Gareth Moore’s Sudoku Xtra magazine! If you aren;t aware of this little gem, then permit me a moment to tell you all about it! The Sudoku part of the title should tell you that a lot of the puzzles are indeed Sudoku related, but there are plenty of Sudoku variants included to keep every enthusiast’s appetite satisfied. A personal favourite of mine is odd-pair Sudoku, which I believe is Gareth’s own invention.

However, those who are underwhelmed by the whole Sudoku craze should still pay attention as the Xtra part of the title holds equal prominence. There are several nikoli-style puzzles in each issue, along with some other WPC favourites. And not to forget arguably the most interesting bit, the community section. (Of course I can’t claim to be totally impartial here!) This features a really rich and diverse collection of logic puzzles sourced from professionals, amateurs and experts alike.

OK, that’s quite enough plugging for now! This week’s puzzle is another Suraromu, inspired the puzzle that appeared in the latest issue of Sudoku Xtra, which was about as much fun I’ve had with any logic puzzle I’ve done in a while. I’m not sure this one rises to those standards, but It’s certainly non-trivial. Actually, Suraromu as a puzzle type intrigues me somewhat because much like Numberlink, as the difficulty of a given puzzle rises, so does that puzzle’s susceptibility to uniqueness strategies. This is certainly true of this puzzle, but unlike with numberlink I think I’d suggest to the puzzler wanting most satisfaction out of the puzzle to resist temptation this time around. And I think I’ve babbled on for long enough now, so all that remains to be said is, Enjoy!

#148 Suraromu – rated medium

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P.S. I should remark that I’m not entirely happy with the presentation of this puzzle. There are some squares which share gates, and I thought that during the test solving this might be a little misleading, even if it is at least implicit that every numbered gate has both of its “posts” labelled. My solution previously had always been to employ a convention that there should be no squares sharing gates, but I suppose I got a bit lazy this week. I’d be interested to know people’s thoughts on this one…


July 29, 2011

Friday Puzzles #115

Permit me, dearest reader, another week lingering over my LMI test from a couple of weeks back. The Suraromu puzzle I put together was one of the puzzles that was most well-received, which is nice because I put it together very quickly one dark March evening just before bed after seeing this MellowMelon puzzle that I thought was really cool. My puzzle definitely has a pleasing logical path in solving it, but I hoped the fact that I paired this puzzle on the same page as the Numberlink puzzle was not lost by LMI solvers! Sadly, with that constructor’s note I should probably label this only medium, but I hope that you, dearest reader, appreciate the novelty with this one!

#144 Suraromu – rated medium

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Now onto this week’s puzzle. Whilst I have been fully aware of a set of wonderful java based applets from long time friends of this blog, the Jankos for a long time now, I have always been a little reluctant to add an interactive side to the blog so far. This has partly been because I don’t really have that much control over the bare-bones coding of the Warwick blogs system (for example, my recent gripes with the blockquote marking apparently no longer working), partly because of the fiddling around needed with input strings and so on, and partly because I like to have some control over how the puzzles look. A puzzle is still a puzzle even if it has a bit of a facelift, but I’d prefer it if my puzzles retained as homogeneous a look as possible.

Which is why I was rather excited when fellow maths Ph.D student here at Warwick, Rupert Swarbrick, approached me with a little toy Akari web script that he was inspired to write after seeing my puzzle a couple of weeks back.

The script itself is wonderful in that it is very clever, very simple, is fully customisable with its appearance via CSS, and generally makes me very happy! So with all that said and done, how could I not write another lame 10×10 Akari this week? I’d almost say this one was hard, and certainly the configuration here probably deserves to be sent to 11 some time, but as with 10×10 Masyu, I have big reservations about calling any Akari this size hard. So medium it is – enjoy!

#145 Akari – rated medium

NEW! – play a fully interactive web version of the puzzle here!

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All puzzles © Tom Collyer 2009-11


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Welcome to the blog of current UKPA sudoku champion, two-time Times national sudoku champion and general logic puzzle fan Tom Collyer.



Home of the original Friday Puzzles, each Friday I publish a 100% original and handmade logic puzzle, inspired by the world-famous Nikoli company.


How to play:
AkariFillominoHashiHeyawakeHitoriKakuroLITSMasyuNumberlinkNurikabeRipple EffectShikakuSlitherlinkSudokuSuraromuYajilin.

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Latest comments

  • I like the appearance of the solution. :P Nice one. by Prasanna Seshadri on this entry
  • I think I've seen something vaguely similar in some of Palmer's puzzles as well. To be honest I've a… by on this entry
  • That's two puzzles in a row where I find something I had used before. I know, not plagiarism; just g… by Bram on this entry
  • Kota, that's not really true. I had made my puzzle before going to the WPC already. Also I don't hav… by Bram on this entry
  • About 20 minutes, after restarting from a mistaken conclusion. by Bryce Herdt on this entry

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