All entries for January 2011

January 28, 2011

Friday Puzzles #89

So I don’t really do many slitherlink, and I think undoubtedly I have a lot to learn about how you skilfully put together a really good coherent puzzle. This one probably counts as an easy, although it isn’t entirely trivial. Enjoy!

#115 Slitherlink – rated easy

All puzzles © Tom Collyer 2009-11

January 21, 2011

Friday Puzzles #88

So this started off being vaguely themed, and now it’s just quite hard. Not as hard as I’d intended, but that’s life. Enjoy!

EDIT: this used to have 2 solutions. Now it has one.

#114 Nurikabe – rated medium

All puzzles © Tom Collyer 2009-11

January 14, 2011

Friday Puzzles #87

Hmmm. Mostly unremarkable this week I’d say. Mostly. :)

#113 Masyu – rated easy

All puzzles © Tom Collyer 2009-11

January 07, 2011

Friday Puzzles #86

A yajilin puzzle this week, dearest reader. Although this is only another little ‘un this week, I am beginning to convince myself it’s harder to squeeze out elegant yajilin in small sizes than it is for larger sizes.

Incidentally, this might have been a candidate for my alternative yajilin presentation (see here and here ) – my first draft has only six non-redundant numbers – although the positioning of each of the clues is actually quite crucial. Still, I like the whole 0/1/2/3 thing I managed to get out of it, so this time it stays in classic yajilin format. Enjoy!

#112 Yajilin – rated medium

All puzzles © Tom Collyer 2009-11


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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