UK Puzzle Association

This is the discussion thread for the 2019 UK Sudoku Championship. It will also act as the second qualifier for the UK A team competing at the World Sudoku Championships in Kirchheim, Germany to be held on the 29th September - 6th October 2019 (note that these dates also include time for the World P...

Top 3 from round 5:

63. Sam Cappleman-Lynes 80.4
78. Tom Collyer 72
121. Matthew White 51

Did you do many of the number puzzles then Neil? I only noticed the massive 150 point whale at the end, kind of glad I didn't do that during the test as I had plenty to keep me occupied, and what I did do I enjoyed a lot. The unequal length Slitherlinks solved very nicely, the Doppelblock with the F...

Some really lovely puzzles in this round, I think it might be my favourite so far!

Round 4 is happening this weekend, if you haven’t already seen

Looks like the issue has been fixed for the preliminary results. Top 3 UK:

28. Sam Cappleman-Lynes 508
44. Tom Collyer 454
45. Mark Goodliffe 451

Round 4 is happening this weekend

Round 4 results:

8 James McGowan 108.2
22 Tom Collyer 87
35 Adam Bissett 78

Preliminary results from round 3. Great to see a top 10 result from James! 8. James McGowan 645 21. Neil Zussman 535 50. Tom Collyer 412 I personally felt like I left a lot of points on the table - after hours the compass didn't really feel that hard, although perhaps the tweaking at the end under t...

Saw an email in my spam folder - the schedule for 2019 is out: https://msoworld.com Of most interest to these parts are the following competitions, both happening on Tuesday 20th August 2019: 10.00am: Sudoku and Killer Sudoku Sudoku is a logic-based, combinatorial number-placement puzzle. The object...

Round 3, by Serbia, is happening this weekend

Top 3 UK - very good result from David here, finishing ahead of the world champion no less!

12. David McNeill 100.5
19. Sam Cappleman-Lynes 84
63. Tom Collyer 59

Top 3 UK round 3: 35 Sam Cappleman-Lynes 516 45 Mark Goodliffe 483 49 Jeremy Kong 482 Jeremy Kong I think is a new name name for me, but a top 50 result is very creditable! On a personal note, after I clicked go on this I had a good 15 minute battle with my printer and the wifi here before I even ha...

Round 3 results:

16 James McGowan 133.6
38 Tom Collyer 115.1
56 Saul Glasman 100.3

Hi Liane - any chance we could get a combined PDF for each competition?

Yes, would be great to come along, but as with Neil I might just see which way the Brexit wind is blowing over the next couple of weeks before booking.

If I am going, I will definitely do the usual Thursday through to Sunday/Monday schedule

Preliminary results for round 2:

17. Neil Zussman 545
23. James McGowan 527
49. Tom Collyer 403

Yes I would agree this is very similar to Blackout

A definite no for me - not only have you got the repeated numbers having to be placed, there is also something of a Heyawake or Hitori like constraint in terms of packing the 4's and 3's into fairly limited regions.

I think it's certainly a very poorly designed variant - the constraints of the geometry mean that it isn't really possible to get anything approaching an interesting solving path...

Is point 1 true? I can't remember enough from my uni days frustratingly! Can't find flaw in points 2-4 though. At the risk of going waaaay off topic, yes: https://en.wikipedia.org/wiki/Clopen_set. Somewhat trivially, the empty set and the entire space are always both open and closed. In general the...

Top 3 from Round 3 - again no finishers this time:

27. Tom Collyer 95
42. Sam Cappleman-Lynes 81
76. Matthew White 62

I can't say that surprises me - I get the impression that there's something of a closed shop within puzzle publishers, particular those which churn out mostly computer generated content (which I think is going to be most puzzles that appear in a newspaper). My approach would be to try and find at le...

They look more like tetrominoes to me, but I take the point

We haven't discussed Odd Lab(yrinth) Sudoku yet either have we? A very similar idea