Search found 339 matches

by kiwijam
Mon 21 Oct, 2019 12:43 am
Forum: Puzzle (incl. Sudoku) Rules & Tips
Topic: Different Neighbours
Replies: 3
Views: 571

Re: Different Neighbours

Yes, obviously finding points where 4 cells meet help you propagate information quickly. Another thing that sometimes pops up is having a chain of cells where every 2nd cell must be a 4. If this chain loops back on itself then it must be even length, so you may be able to rule out options that would...
by kiwijam
Sun 01 Sep, 2019 12:15 am
Forum: Puzzle Competitions
Topic: Yajilin&Variations - 30.08.-2.09.19
Replies: 8
Views: 1906

Re: Yajilin&Variations - 30.08.-2.09.19

Thank you for the contest Jonas, they were an excellent set of ideas and puzzles, and I recommend them to anyone that enjoys Yajilins!
by kiwijam
Tue 06 Aug, 2019 3:03 am
Forum: General Puzzle Discussions
Topic: Humble Bundle Puzzles
Replies: 1
Views: 1029

Humble Bundle Puzzles

I just spotted on gmpuzzles that there was a bundle of ~30 puzzle and other books last week, which I am sad I missed. After missing two similar bundles over the last 3 years, I had asked Humble to email me about every new bundle... except no email for this one, I don't know why. Did anybody here get...
by kiwijam
Wed 24 Jul, 2019 4:20 am
Forum: Puzzle Competitions
Topic: WPF Sudoku GP
Replies: 28
Views: 9815

Re: WPF Sudoku GP

Can someone remind me, I think there is a thread here containing the UK records and achievements?
by kiwijam
Mon 15 Jul, 2019 3:23 am
Forum: Puzzle (incl. Sudoku) Rules & Tips
Topic: Arrows
Replies: 6
Views: 2323

Re: Arrows

Originally I was only going to post about notation, but then decided to start solving the puzzles as an example. I hadn't read Freddie's interesting posts at that point, so have repeated some of his observations in my own words. I haven't thought about that 4-1-3-5 square logic before, a great start...
by kiwijam
Mon 15 Jul, 2019 3:06 am
Forum: Puzzle (incl. Sudoku) Rules & Tips
Topic: Arrows
Replies: 6
Views: 2323

Re: Arrows

I have a fast notation. I use a small ruler, and quickly draw a long line wherever I know an arrow points. Each 'row' can have 0, 1, or 2 lines along it. Initially it's not important to know which direction the line comes from. e.g. let's say there is a 6 and a 1 that can see each other (same 'row')...
by kiwijam
Wed 10 Jul, 2019 11:49 pm
Forum: Puzzle Competitions
Topic: WPF Puzzle GP
Replies: 22
Views: 8509

Re: WPF Puzzle GP

:popcorn: it's almost like watching a world cup semifinal!
by kiwijam
Fri 17 May, 2019 1:13 am
Forum: Puzzle Competitions
Topic: WPF Puzzle GP
Replies: 22
Views: 8509

Re: WPF Puzzle GP

Nice work Sam! I had a bad start, I'd practised for the big Slitherlink at the end, but after 25 minutes I'd broken it 5 times, printed it twice, and made myself move on to start getting some points elsewhere. During my guessing start I thought I'd proved that the bottom-right cell must be in the lo...
by kiwijam
Mon 31 Dec, 2018 2:57 am
Forum: Puzzle Competitions
Topic: SOTR Holiday Quiz 2018-19
Replies: 1
Views: 2961

SOTR Holiday Quiz 2018-19

Similar to previous years, Tawan has written a puzzly quiz on his blog.
https://roygbivpuzzles.wordpress.com/20 ... z-2018-19/
A fun diversion if you've got some free time over the New Years period.
by kiwijam
Tue 18 Dec, 2018 2:28 am
Forum: Puzzle Links
Topic: Dan Peake's Puzzlevent
Replies: 1
Views: 3008

Re: Dan Peake's Puzzlevent

Thanks for the recommendation Tom, I'm really enjoying these.
by kiwijam
Mon 30 Jul, 2018 12:32 am
Forum: Puzzle Competitions
Topic: PuzzleUp
Replies: 3
Views: 4309

Re: PuzzleUp

Just found some old conversations between Alan and I, after that contest finished and we were annoyed with the organisers. One hard puzzle they ended up removing from the results. One puzzle they allowed a couple of correct answers, due to different assumptions made by people. And one true optimiser...
by kiwijam
Mon 30 Jul, 2018 12:23 am
Forum: Puzzle Competitions
Topic: PuzzleUp
Replies: 3
Views: 4309

Re: PuzzleUp

I played in 2013. Most puzzles were fun and enjoyable. But the contest ends up decided by the few frustrating ones. A lot were optimizing style, so I remember some ambiguous rules where you're not certain which answer to submit. I also remember poorly created optimizers, where the obvious easy answe...
by kiwijam
Thu 28 Jun, 2018 10:08 pm
Forum: Announcements
Topic: Results: 2018 UK Puzzle Championship
Replies: 2
Views: 5843

Re: Results: 2018 UK Puzzle Championship

Thanks Tom, looking forward to teaming up with you, Neil and Emma in November!
by kiwijam
Fri 22 Jun, 2018 2:24 am
Forum: Puzzle Competitions
Topic: UK Puzzle Championship 2018 / WPC Qualification
Replies: 18
Views: 13407

Re: UK Puzzle Championship 2018 / WPC Qualification

Yes, mirrors just refer to wherever the line changes direction. Laser is an old CrocoPuzzle type - if you want to test your understanding of the rules (or just practice) then look through the archive at https://www.croco-puzzle.com/Raetselspass/Raetsel-der-Woche/index.php It's also the main place to...
by kiwijam
Fri 29 Dec, 2017 1:54 am
Forum: Puzzle Competitions
Topic: [SOTR] End of year events
Replies: 2
Views: 4658

Re: [SOTR] End of year events

Thanks Tawan, two great contests.
I was quietly confident in my Scattergories skills for the Hurdles...
Turns out I was completely wrong, and finished down the bottom of the leaderboard!

But the quiz was fun, good for people that enjoy puzzle trivia.
by kiwijam
Mon 18 Dec, 2017 10:54 pm
Forum: Puzzle Competitions
Topic: Armchair Treasure Hunt
Replies: 4
Views: 5520

Re: Armchair Treasure Hunt

The hunt has started now. It'll go for a few weeks I expect. I'm involved with a puzzle hunt team in Australia who are making some initial progress. The 12 pages can be joined together to make a large 'map'. At the moment I am looking at constructing some French coat of arms, and a list of galaxies ...
by kiwijam
Wed 06 Dec, 2017 12:36 am
Forum: Puzzle Competitions
Topic: Armchair Treasure Hunt
Replies: 4
Views: 5520

Re: Armchair Treasure Hunt

I'll help out.
by kiwijam
Tue 21 Nov, 2017 3:18 am
Forum: General Puzzle Discussions
Topic: BBC Radio 4 - Puzzles for Today
Replies: 12
Views: 12198

Re: BBC Radio 4 - Puzzles for Today

The solution briefly mentioned Fibonacci.
That was referring to the observation that the the number born today equals the number born 2 days ago plus the number born 3 days ago.
So that gives a Fibonacci-style sequence, and from that sequence t18 + t19 + t20 = 200.
by kiwijam
Wed 11 Oct, 2017 9:52 pm
Forum: Puzzle Competitions
Topic: Puzzle GP question
Replies: 16
Views: 12260

Re: Puzzle GP question

It's a poor system. Next time, just click to get the A password and submit nothing... guaranteed zero score?
by kiwijam
Thu 05 Oct, 2017 12:58 am
Forum: Announcements
Topic: Board sofware update
Replies: 5
Views: 8295

Re: Board sofware update

Alan, I went to a Contests page http://www.ukpuzzles.org/contests.php?contestid=7 and clicked on the link to the puzzle file http://www.ukpuzzles.org/file_download.php?fileid=55&md5=6a53e962e7090267eff997957a4f0590 But got this error message: "Illegal use of $_GET. You must use the request class to ...
by kiwijam
Tue 03 Oct, 2017 10:05 pm
Forum: Puzzle Competitions
Topic: Puzzle GP question
Replies: 16
Views: 12260

Re: Puzzle GP question

I think it depends what they think the rules mean... I'd just ask them.
It's also possible they made a mistake?
by kiwijam
Mon 02 Oct, 2017 9:55 pm
Forum: Announcements
Topic: Board sofware update
Replies: 5
Views: 8295

Re: Board sofware update

I panicked when my favourite "active topics" disappeared, but found it in Quick Links, so am happy again.
by kiwijam
Mon 11 Sep, 2017 2:17 am
Forum: Puzzle Competitions
Topic: Skyscrapers Contest #9
Replies: 0
Views: 4725

Skyscrapers Contest #9

Skyscrapers Contest #9 is coming up this weekend.
23 Skyscrapers puzzles in 120 minutes. 5 classics plus 18 variants.
Author = Roland Voigt.

The instruction book can be read at https://logic-masters.de/Wettbewerbe/we ... .php?id=98
by kiwijam
Mon 14 Aug, 2017 10:08 pm
Forum: Puzzle Competitions
Topic: Puzzle GP question
Replies: 16
Views: 12260

Re: Puzzle GP question

Haha, you know they haven't done a good job of selling these leagues to us if everybody is trying to avoid promotion!
You still get to compete in any round you like right?
Come over to the A-side Emma, we have cookies.
by kiwijam
Mon 14 Aug, 2017 1:32 am
Forum: Puzzle Competitions
Topic: Puzzle GP question
Replies: 16
Views: 12260

Re: Puzzle GP question

According to http://gp.worldpuzzle.org/content/wpf-gp-puzzle-classes , you started the year in Class B. According to the Rules : Class A participants are those who qualify for at least one of the following conditions: - Finished in the top 10 ranking for the 2014 Puzzle GP - Finished in the top 25 r...