All entries for Friday 08 October 2010

October 08, 2010

Friday Puzzles #73

I write today at silly o’ clock in the morning as something of a broken man, in terms of writing puzzles anyway. For today’s post, I would have loved nothing more than to share the three “marathon” puzzles I have written for the LMI October Puzzle test, my so-called Nikoli selection. In my judgement, they are 3 of the best puzzles I’ve done so far, and as a threesome they encompass some great design, some excellent solving manoeuvres which will be familiar to long-time readers of this blog, some more that will be novel; sometimes with a highly slick solving feel, other times with some fairly challenging logic, and yet more times where you suddenly notice something really neat that you really weren’t expecting.

However, I can’t very well go and publish them early now, can I?

Instead, I have fallen back on my trusty friend, the 10×10 Masyu, with (almost) twisted symmetry. This is one I made waiting for the rounds to finish at the Times sudoku championship last month – and I was thinking about including this for LMI until I made an even prettier design. So yeah, lazy this week. If it’s any consolation I believe there are very few people – if indeed there are any at all – who do these better than me. Enjoy!

#090 Masyu – rated easy

All puzzles © Tom Collyer 2009-10


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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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