Search found 346 matches

by kiwijam
Fri 05 Feb, 2021 9:18 pm
Forum: Puzzle Links
Topic: A Gogen Puzzle I Created Myself
Replies: 13
Views: 4784

Re: A Gogen Puzzle I Created Myself

I've seen a few versions, under different names. There've been a few optimisers (how many of these words can you fit inside this grid), and it was in the WPC maybe 6 years ago.
by kiwijam
Fri 05 Feb, 2021 2:58 am
Forum: Puzzle Competitions
Topic: 2021 WPF Sudoku and Puzzle GPs
Replies: 71
Views: 10133

Re: 2021 WPF Sudoku and Puzzle GPs

Yes. To elaborate: e.g. Look at the 32, 38, and 39 regions. They sum to 109, the whole puzzle sums to 136, so the left most pair of regions sum to 27. Now look at the 47. The left 2 are 27, so the right 2 are 20. This can continue along the lower edge. You'll find that the 50 and 37 sum to 30, so mu...
by kiwijam
Tue 02 Feb, 2021 4:48 am
Forum: Puzzle Competitions
Topic: 2021 WPF Sudoku and Puzzle GPs
Replies: 71
Views: 10133

Re: 2021 WPF Sudoku and Puzzle GPs

I also 'did a Yanzhe', so hoping to rise 5 places more.
Great start to 2021 Freddie!
by kiwijam
Wed 01 Jul, 2020 5:19 am
Forum: Announcements
Topic: Results: 2020 UK Puzzle Championship
Replies: 7
Views: 8321

Re: Results: 2020 UK Puzzle Championship

Wow, that was close (and fortunate). I predict many victories for you in coming years Freddie, with Neil and I not far behind. 8-) Which is great news for the strength of the UK team! Thank you to Ashish Kumar, Bram de Laat, Hatice Esra Aydemir, David McNeill, Nikola Zivanovic, and Prasanna Seshadri...
by kiwijam
Sun 28 Jun, 2020 7:46 am
Forum: Puzzle Competitions
Topic: Puzzle Ramayan - 2020
Replies: 13
Views: 11537

Re: Puzzle Ramayan - 2020

Well done Freddie! When I last looked it said you spent 16 attempts and 50 minutes struggling with one puzzle. Was it a bad answer key in the end?
by kiwijam
Thu 14 May, 2020 10:18 pm
Forum: Puzzle Competitions
Topic: Puzzle Alphabet - 08.-12.05.
Replies: 2
Views: 4376

Re: Puzzle Alphabet - 08.-12.05.

Well done Freddie!
I thought it said 11:59pm finish, not 11:59am, so I started at 11:53am and found out two hours later that it didn't care about my answer keys :lol:
by kiwijam
Fri 03 Jan, 2020 2:56 am
Forum: Puzzle Competitions
Topic: [SOTR] 2019-20 Holiday Quiz
Replies: 1
Views: 3978

Re: [SOTR] 2019-20 Holiday Quiz

Don't get their hopes up Tawan, my Google-fu is just too strong. But they are welcome to compete for second place! :lol:
by kiwijam
Mon 21 Oct, 2019 12:43 am
Forum: Puzzle (incl. Sudoku) Rules & Tips
Topic: Different Neighbours
Replies: 3
Views: 8576

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: 11513

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: 6174

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: 33634

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: 11119

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: 11119

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: 26659

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: 26659

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: 6160

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: 8075

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: 8642

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: 8642

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: 11790

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: 28243

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: 7938

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: 10280

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: 10280

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: 25035

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.