Search found 95 matches

by DavidC
Tue 23 Nov, 2021 5:29 pm
Forum: Announcements
Topic: 2021 World Sudoku+Puzzle Convention
Replies: 13
Views: 1021

Re: 2021 World Sudoku+Puzzle Convention

Thank you to those of you who took part in the various video discussions. I haven't watched them all yet - the shortest of the five is three quarters of an hour! - but I have enjoyed a couple of them already. https://www.youtube.com/channel/UCGY12L ... A/featured
by DavidC
Fri 12 Nov, 2021 8:08 pm
Forum: Announcements
Topic: 2021 World Sudoku+Puzzle Convention
Replies: 13
Views: 1021

Re: 2021 World Sudoku+Puzzle Convention

Thanks Adam - I mistakenly thought that everything started on Saturday

David
by DavidC
Thu 07 Oct, 2021 9:48 am
Forum: Puzzle (incl. Sudoku) Rules & Tips
Topic: Tents
Replies: 8
Views: 1068

Re: Tents

Great, thanks
by DavidC
Tue 05 Oct, 2021 12:30 pm
Forum: Puzzle (incl. Sudoku) Rules & Tips
Topic: Tents
Replies: 8
Views: 1068

Re: Tents

Silly question time. I am confused by the bottom of the second new example. To achieve the required 3 tents in row 6, the only three trees that reach them orthogonally are r6c2, r6c4 and r7c7. r7c7 puts a tent in r6c7 which drives the other two to be in c1 and c4 to avoid tents touching. Then, becau...
by DavidC
Wed 25 Aug, 2021 8:23 pm
Forum: Puzzle Competitions
Topic: Puzzles at the Mind Sports Olympiad in London on Sunday
Replies: 50
Views: 84138

Re: Puzzles at the Mind Sports Olympiad in London on Sunday

Thanks for the reminder, Tom. Well done tonight - hopefully your medal position will be formally confirmed in due course. I am happy enough with apparent-13th simply because I managed to log on and register successfully this year after a logistical nightmare last year when I failed to actually compe...
by DavidC
Sun 13 Jun, 2021 10:35 pm
Forum: Announcements
Topic: UKPA Monday evening Zoom drop-ins
Replies: 37
Views: 9702

Re: UKPA Monday evening Zoom drop-ins

david mcneill wrote: Fri 11 Jun, 2021 12:41 pm At the risk of intertwining quite different threads (see Deuteronomy 22:11), it was the contents that fell short of the mark.
David, what a wonderful pun to invoke such an appropriate quote!
by DavidC
Thu 10 Jun, 2021 8:23 pm
Forum: Announcements
Topic: UKPA Monday evening Zoom drop-ins
Replies: 37
Views: 9702

Re: UKPA Monday evening Zoom drop-ins

david mcneill wrote: Tue 08 Jun, 2021 9:02 am Sorry Tom. I wasn't available to join you last night. Under instructions to augment my wardrobe.
Structure or contents, David?!

David
by DavidC
Thu 19 Nov, 2020 8:47 am
Forum: Puzzle Competitions
Topic: Division D 2020-21
Replies: 48
Views: 28359

Re: Division D 2020-21

Thanks - I'm sorry I didn't manage to submit this time. Incidentally, I find it interesting and mentally challenging that blocking out stuff is actually a positive rather than negative aspect to this puzzle. Perhaps I need to think of it and/or mark it in a different way, as I naturally think of the...
by DavidC
Wed 21 Oct, 2020 9:45 pm
Forum: Puzzle Competitions
Topic: Division D 2020-21
Replies: 48
Views: 28359

Re: Division D 2020-21 Round 1

Thank you all for your responses. As someone who is used to the rigour of being required to get 81/81 correct (either absolutely or to definitively identify a well-constructed answer key), it may take me a little while to adjust to the acceptable bounds in this weird parallel universe of scribbling ...
by DavidC
Sat 17 Oct, 2020 10:54 pm
Forum: Puzzle Competitions
Topic: Division D 2020-21
Replies: 48
Views: 28359

Re: Division D 2020-21 Round 1

Re. my testing time: for very easy puzzles, writing speed is certainly a huge factor, and may play more of a role than logical ability. Thanks, this is a fascinating comment. As someone from the sudoku side of the community, I have occasionally tried odd tweaks like changing the way I have written ...
by DavidC
Sat 17 Oct, 2020 10:46 pm
Forum: Puzzle Competitions
Topic: Division D 2020-21
Replies: 48
Views: 28359

Re: Division D 2020-21 Round 1

Although the instructions to fillomino tell you to place a number in each cell, most of the time I will instead draw borders to identify regions of connected cells, and then maybe write in the relevant size In one representative cell of the region. It certainly saves a bit of time doing it that way...
by DavidC
Fri 16 Oct, 2020 7:36 pm
Forum: Puzzle Competitions
Topic: Division D 2020-21
Replies: 48
Views: 28359

Re: Division D 2020-21 Round 1

Thank you for running this contest. After so many years of resolutely sticking to the Sudoku world - despite suffering incessant bullying and coercion from Liane as a result :-) - I am delighted to have dipped a toe into the waters of the puzzling part of our community. I really look forward to tryi...
by DavidC
Sun 02 Aug, 2020 7:13 pm
Forum: Puzzle Competitions
Topic: Puzzles at the Mind Sports Olympiad in London on Sunday
Replies: 50
Views: 84138

Re: Puzzles at the Mind Sports Olympiad in London on Sunday

Good luck to those of you currently taking part in the online MSO sudoku contest. I made a mistake with the registration requirements - I registered with MSO, and with Discord, and with vint.ee, several days ago. However I cut it fine driving home tonight and didn't realise about needing to register...
by DavidC
Wed 21 Aug, 2019 8:57 pm
Forum: Puzzle Competitions
Topic: Puzzles at the Mind Sports Olympiad in London on Sunday
Replies: 50
Views: 84138

Re: Puzzles at the Mind Sports Olympiad in London on Sunday

Thank you. It was good to see Tom and Neil, and Rodders for the first time in ages. There were some other familiar MSO faces too.

David
by DavidC
Fri 12 Jul, 2019 2:16 pm
Forum: Puzzle Competitions
Topic: The Times Sudoku Championship 2019 (or not)
Replies: 3
Views: 8443

Re: The Times Sudoku Championship 2019 (or not)

I contacted The Times generic mailbox a few weeks ago to find out about the qualifiers (as I would need to qualify this year after a stupid error last year). David Parfitt replied soon afterwards: "[...] I'll be in touch as soon as I'm in a position to update you on what is happening this year....
by DavidC
Fri 05 Apr, 2019 4:27 pm
Forum: Welcome!
Topic: Hello all I have some puzzles for you to solve
Replies: 7
Views: 20504

Re: Hello all I have some puzzles for you to solve

Hello. 958 ?
by DavidC
Sat 16 Feb, 2019 12:41 pm
Forum: WPF Sudoku Technical Discussion forum
Topic: Figure sum sudoku [WPF sudoku GP 2017]
Replies: 8
Views: 16063

Re: Figure sum sudoku [WPF sudoku GP 2017]

Even more succinctly, a sudoku is about symbol placement not structure placement :-)
by DavidC
Sat 16 Feb, 2019 11:37 am
Forum: WPF Sudoku Technical Discussion forum
Topic: Figure sum sudoku [WPF sudoku GP 2017]
Replies: 8
Views: 16063

Re: Figure sum sudoku [WPF sudoku GP 2017]

More succinctly, a sudoku is primarily about symbol placement not structure placement.
by DavidC
Sat 16 Feb, 2019 11:32 am
Forum: WPF Sudoku Technical Discussion forum
Topic: Figure sum sudoku [WPF sudoku GP 2017]
Replies: 8
Views: 16063

Re: Figure sum sudoku [WPF sudoku GP 2017]

For me, I think that it is the numbers (or symbols) that should need to be placed in a sudoku, not the structural components. I am happy when regions are marked out in the beginning. I am not happy with having to mark out regions myself. Thinking about it further, I think that I would be happy to pl...
by DavidC
Sat 12 Jan, 2019 10:01 am
Forum: WPF Sudoku Technical Discussion forum
Topic: Crossnumber sudoku [WPF Sudoku GP 2014]
Replies: 2
Views: 6166

Re: Crossnumber sudoku [sudoku GP 2014]

This is OK for me. The list and white junctions are really just extra constraints that reduce the number of classic candidates. Subjectively, I also like the concept (but that's irrelevant).
by DavidC
Sat 12 Jan, 2019 9:54 am
Forum: WPF Sudoku Technical Discussion forum
Topic: Sukaku [WPF Sudoku GP 2015]
Replies: 2
Views: 6403

Re: Sukaku [sudoku GP 2015]

This is a "no" for me. I expect to be asked to fill in a sudoku grid (including whatever extra shaded/region/other rules are relevantd). I do not expect to be asked to have to construct part of the puzzle itself. For me, this example goes too far beyond just applying rules and becomes actu...
by DavidC
Tue 08 Jan, 2019 12:07 am
Forum: WPF Sudoku Technical Discussion forum
Topic: READ ME FIRST: What is a Sudoku Committee
Replies: 28
Views: 40587

Re: READ ME FIRST: What is a Sudoku Committee

I'm not sure how to insert a diagram image, so maybe I'll refer to plotting a colour-coded diagram with a RAG Status list instead (Red=no, Amber=borderline, Green=OK), with Classic in the centre, other Greens surrounding, Amber slightly further out and Red much further out This is just an illustrati...
by DavidC
Mon 07 Jan, 2019 11:36 pm
Forum: WPF Sudoku Technical Discussion forum
Topic: Three different questions?
Replies: 17
Views: 25425

Re: Three different questions?

"Or the 2011 WSC round 12, which consist of a real cube (not a 3D representation on a 2D paper)."

I feel that anything involving physical handling/dismantling/constructing/manipulation is a distraction and a gimmick.
by DavidC
Mon 07 Jan, 2019 11:29 pm
Forum: WPF Sudoku Technical Discussion forum
Topic: Halloween Sudoku [WSC 2009]
Replies: 3
Views: 7953

Re: Halloween Sudoku [WSC 2009]

Any set of symbols will have some cultural baggage. In my opinion the digits 1-9 have less baggage than the letters A-Z and come from a smaller set of elements (implying less likelihood of confusion for contestants and markers). I don't think there is any other relatively small set of symbols that i...