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

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

Friday Puzzles #87

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

    #113 Masyu – rated easy
 

All puzzles © Tom Collyer 2009-11

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

Friday Puzzles #85

Well, as we bring 2010 to end, dearest reader, I must confess that this post has been written in advance, as I am currently having almost literally a whale of a time in Berlin. I’m afraid that means that there isn’t going to be a puzzle here until sometime next week – I have had myself a nice and lazy and indulgent Christmas break at home with the family.

However I hope that everyone has enjoyed my offerings this year, be it my rather manic 7 puzzles in 7 days which heralded me branching out to writing a few new puzzle types; or perhaps my long Championship write-ups from Philadelphia in April and London in September; or the start of my “career” as a competition writer with both the (moderately disastrous) LMI Nikoli Selection and the UKPA Sudoku Championship (well done again Warren!); or perhaps one of the numerous twisted symmetry Masyu I always seem to resort to when I’ve forgotten to write a puzzle for a particular week.

Anyhow, I hope everyone has had a good 2010, and here’s to the promise of 2011 – not least the puzzle that’ll be edited in here later!

EDIT: Here as promised is the puzzle. I will probably be revising Heyawake fairly soon, in response to an email I had from Otto Janko before Christmas – but for now, here is a nice small puzzle which should prove a bit of a tough nut to crack. Enjoy!

    #111 Heyawake – rated hard
 

All puzzles © Tom Collyer 2009-11