December 31, 2010

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


- 3 comments by 1 or more people Not publicly viewable

  1. MellowMelon

    Great innovation with the adjacent 3s. The spiral shape and the starting point in the center makes me wonder if you had in mind some silver bullet deduction that allows you to get those rooms immediately. I had to take lots of baby steps to make it there.

    06 Jan 2011, 01:58

  2. TheSubro

    Great little jewel of a puzzle.

    Thanks for a year of gems.

    TheSubro

    06 Jan 2011, 12:08

  3. MellowMelon,

    Initially I drew up the grid with a full border of 2×4 blocks of 3. Unfortunately it’s then illegal to fill up the middle cells with rooms without going a bit heyawacky! My intention always was to have a bit of fun rooting round the outside for titbits of information, until you get to the inside, and then you can start shading squares. I take my hat off to anyone who manages to bypass that!

    06 Jan 2011, 16:09


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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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