Search found 346 matches
- 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.
- 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...
- 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!
Great start to 2021 Freddie!
- 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...
- 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?
- 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
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

- 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! 

- 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...
- 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!
- 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...
- 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?
- 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...
- 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')...
- Wed 10 Jul, 2019 11:49 pm
- Forum: Puzzle Competitions
- Topic: WPF Puzzle GP
- Replies: 22
- Views: 26659
Re: WPF Puzzle GP

- 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...
- 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.
https://roygbivpuzzles.wordpress.com/20 ... z-2018-19/
A fun diversion if you've got some free time over the New Years period.
- 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.
- 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...
- 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...
- 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!
- 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...
- 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.
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.
- 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 ...
- 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.
- 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.
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.