UK Puzzle Association

The SPOLICY was no fun for me at all. The Yin Yang was lovely, but I couldn't see it during the event, same with the Tapa. I definitely didn't choose the right puzzles this time.

Well done to Eva for her performance in Round 3, just edging out Jeffrey. The Division C competitors are below: 1st - Eva Myers - 470 points 2nd - Jeffrey Dick - 455 points 3rd - Liane Robinson - 330 points 4th - Thomas Powell - 310 points 5th - Maurice Blount - 240 points 6th - Keith Lothian - 175 ...

Here are some practice puzzles written by Neil Zussman, who has written the competition puzzles. Most are good checks to see that you've understood the rules, and the last one is a nice challenge to see if you're ready for the competition!

Yes. That's what happened. Here's the corrected version. I'll delete the incorrect one. Thanks for checking!

Here are two more small examples for you to try. The second follows after the comments regarding corrections from Sam and Freddie.

Nikoli defines Masyu as follows: Make a single loop with lines passing through the centres of cells, horizontally or vertically. The loop never crosses itself, branches off, or goes through the same cell twice. Lines must pass through all cells with black and white circles. Lines passing through whi...

Hi everyone Round 5 is over now. The times were relatively close for most puzzlers, with the last three puzzles being the deciding ones really. Thanks to Liane for testing the puzzles for me. The times were as follows: Sam Cappleman-Lynes - 50 points - 5m37 Matthew White - 50 points - 7m46 Jeffrey D...

Thanks both!

For the Masyu (all cells), after a bit of standard Masyu, consider R6C6. You should be able to determine its orientation. I'll leave the slitherlink out of it for now. What standard Masyu? The only things I managed to get on my grid were the four corners and that the black cell in R3C5 had to go up...

Thanks Emma. Here is an updated table.

Jeff, I'm with Freddie - I found the second slitherlink the easiest - what am I missing about the first? Is there a pattern with 1s and 3s that I'm missing with the third? I'm struggling to get started on it. Regional Yajilin I found difficult too. I got the second one but still struggling with the ...

Round 2 is also finished for Division A Freddie finished in a blistering time and will need to give us all tips because I'm still struggling through about 5 of the puzzles days later. 1st - Freddie Hand - 155.62 points 2nd - Neil Zussman - 100.9 points 3rd - Adam Bissett - 48 points 4th - David McNe...

Round 2 is now finished for Division B It looks like people found this round quite difficult. 1st - Sam Cappleman-Lynes 87.6 points 2nd - Roderick Grafton - 38 points 3rd - Emma McCaughan - 33 points 4th - AJ Moore - 13 points There were some impressive performances from Division C competitors, nota...

Here is Round 5 of Division D of the 2020-2021 UK Puzzle League. Please download and print the puzzles. You can complete them in any order at any point between now and Tuesday 16th February. For each puzzle, remember to time yourself honestly as to how long it takes. When you are finished all of the...

pinkagape wrote: ↑

Thu 21 Jan, 2021 8:13 pm

Here are two small example puzzles for you to try.

The right hand Puzzle is ambiguous (thanks Keith). There are multiple possible solutions. This is a mistake.

Thanks Tom. That’s all useful to know. I will send you a PM.

IB is finally live.

Slitherlink
Masyu
Country Road
Round Trip
Ripple Loop
Regional Yajilin
Masyu – All Cells
Slitherlink – S & W

Freddie's fantastic performance gets him full credits in Round 1 of Division A. Showing just Division A competitors: 1st - Freddie Hand - 752 points 2nd - Neil Zussman - 577 points 3rd - Adam Bissett - 484 points 4th - Tom Collyer - 423 points 5th - Matthew White - 341 points http://fuchsia.parallel...

Hi everyone Division B looks to have a runaway leader, but the scoring system allows for easier catching up as the margin of Sam's win only equates to a single point in this format. Showing Division B competitors only: 1st - Sam Cappleman-Lynes - 571 points 2nd - Emma McCaughan - 340 points 3rd - Mi...

Hi everyone Round 2 is now complete, though still open to appeals. Isolating the Division C players from the whole list, we have 1st - Maurice Blount - 226 points 2nd - Liane Robinson - 194 points, 1.27.38 3rd - Eva Myers - 194 points, 1.29.22 4th - Thomas Powell - 188 points 5th - Keith Lothian - 1...

I don't have anything to add to Tom's list but I wanted to second it.

Well done everyone! I had the anglers cave but didn’t read the key correctly, frustratingly. When do they put the amendments through? I don’t want to have to do and redo the UK Puzzle League standings if there’s going to be turbulence. Also, how are you supposed to do darts? I can’t find a technique...

Here are two more examples

Yes, I found the dissection in the example was almost completely resolvable using essentially only domino-type logic (though of course invoking the parity properties of the path). Identifying the ends of the path only comes into play later on, both of which are forced by the fact that two adjacent ...

Prime paths doesn’t feel like it could plausibly have such high point values (all 21 2-digit primes is only 42 cells and should permit bifurcation on 2,4,5,6,8) but we’ll see... Is this likely to be a mix of a path puzzle and some dominoes style logic? I struggled to start the example, but I didn’t...