Search found 1041 matches

by detuned
Wed 22 Sep, 2010 9:43 pm
Forum: General Puzzle Discussions
Topic: Puzzles to Inspire Youngsters
Replies: 39
Views: 30643

Re: Puzzles to Inspire Youngsters

Just thought I'd add a few pointers on the formatting issue. All of the puzzles that go on my blog were done by screen-grabbing Excel. In terms of setting up evenly spaced grids with the text where I want it, and almost total control on colours and borders I think the results are pretty impressive. ...
by detuned
Tue 21 Sep, 2010 7:14 pm
Forum: Puzzle Competitions
Topic: German DSM qualifying (sudoku)
Replies: 0
Views: 4172

German DSM qualifying (sudoku)

This has been and gone, but the details are all still up here: http://www.logic-masters.de/DSM2010/qualifikation.php
The password is: dokushin2010
by detuned
Mon 20 Sep, 2010 10:18 pm
Forum: Puzzle Competitions
Topic: 1st UKPA Sudoku Championship
Replies: 74
Views: 82335

Re: 1st UKPA Sudoku Competition

Hopefully a few people have seen this thanks to the cards in the goodybag at The Times championship on Saturday. I encourage everyone to sign up and show your interest by leaving a comment!

Also Alan - would it be possible to get this thread kept at the top of the forum for the next few weeks?

Tom
by detuned
Sun 19 Sep, 2010 11:03 pm
Forum: Puzzle Competitions
Topic: Times National Sudoku Championship
Replies: 4
Views: 7935

Re: Times National Sudoku Championship

I have no doubt that eventually I'll cut out all the errors I seem to be making recently - but I've won the thing twice and although I'm a bit gutted I'm glad that George won to uphold respect for Team UK from Philadelphia! I should also add that our very own Mike Colloby put in a respectable perfor...
by detuned
Sun 19 Sep, 2010 7:13 pm
Forum: Puzzle Competitions
Topic: Indian Puzzle Championship
Replies: 52
Views: 38435

Re: Indian Puzzle Championship

Fred - do you have the password for that german qualification pdf?
by detuned
Sun 19 Sep, 2010 4:45 pm
Forum: General Puzzle Discussions
Topic: Checking completed puzzles for errors
Replies: 1
Views: 4464

Checking completed puzzles for errors

An unashamed attempt at catharsis after yesterday, but perhaps will make for an interesting discussion anyway. Generally I only check very lightly, basically to catch an empty squares that haven't been filled in. I'd say this catches 80-90% of my errors although obviously it isn't foolproof. What ar...
by detuned
Sun 19 Sep, 2010 4:40 pm
Forum: Puzzle Competitions
Topic: Times National Sudoku Championship
Replies: 4
Views: 7935

Re: Times National Sudoku Championship

I'll do an update on my blog Fred. A personally gut-wrenching affair, the new UK sudoku champion is George Danker after an impressive performance. 2nd was two-time champion Nina Pell, and 3rd was Mark Goodliffe, the current TImes crossword champion. Yours truly didn't qualify for the final having ma...
by detuned
Thu 16 Sep, 2010 11:05 pm
Forum: General Puzzle Discussions
Topic: Puzzles to Inspire Youngsters
Replies: 39
Views: 30643

Re: Puzzles to Inspire Youngsters

Steve, I'll have to give this some thought. I certainly wouldn't recommend a diet of Slitherlink as it quickly becomes more tedious than Sudoku. It is important to illustrate the variety of puzzle types, preferably with fairly straightforward examples. To complement number filling and loop puzzles,...
by detuned
Thu 16 Sep, 2010 10:53 am
Forum: Puzzle Competitions
Topic: Indian Puzzle Championship
Replies: 52
Views: 38435

Re: Indian Puzzle Championship

Yeah possibly - if it weren't for the top middle 3x3 box with the 2 and 1 on the same row. There was just enough information with the givens to see that such a trap was very probably unlikely after a quick scan - I went with the hunch rather than definitively satisfy myself that this was the case at...
by detuned
Thu 16 Sep, 2010 10:02 am
Forum: Puzzle Competitions
Topic: Indian Puzzle Championship
Replies: 52
Views: 38435

Re: Indian Puzzle Championship

Alan, you have the gist of the puzzle there. The key to it all is this effectively segregates the puzzle into 3 "easy" puzzles - the challenge is working out where the segregation comes in ( not unlike sudoku islands, to put in a shameless plug here ). The way I looked at it was to first get the lab...
by detuned
Tue 14 Sep, 2010 11:02 pm
Forum: Puzzle Competitions
Topic: LMI September Sudoku Contest (25-26 Sep)
Replies: 3
Views: 5543

LMI September Sudoku Contest (25-26 Sep)

This one is called "Sudoku Hotpot", which in fairness most sudoku contests these days are. An interesting mix nevertheless, albeit the instruction book lacks examples. One of the authors - cpickerel - finished 7th in Philadelphia! Contest page Forum thread And I believe it is happening the weekend o...
by detuned
Tue 14 Sep, 2010 5:53 pm
Forum: Puzzle Competitions
Topic: Indian Puzzle Championship
Replies: 52
Views: 38435

Re: Indian Puzzle Championship

I think a take a different point of view. I think it's all a little too easy to dismiss sudoku out of hand, especially combining it with an air of anti-popularism. I don't think it's a question of "choosing to specialise" either. Actually, sudoku contests tend to have a large range of variations tha...
by detuned
Mon 13 Sep, 2010 9:26 pm
Forum: Puzzle Competitions
Topic: Indian Puzzle Championship
Replies: 52
Views: 38435

Re: Indian Puzzle Championship

Seriously, my concern with a competition like this mixing them is that the "specialists" are significantly faster at the sudoku while people who prefer other varieties of puzzle didn't have a particularly big puzzle to pick up time on. Domino was the only time consuming puzzle in the rest of it, bu...
by detuned
Mon 13 Sep, 2010 3:44 pm
Forum: General Puzzle Discussions
Topic: Fences Videos
Replies: 8
Views: 8687

Re: Fences Videos

Wow - I've never used in/out the loop techniques when solving any slitherlink other than the sheep in fences puzzles from the USPC's. And I've done a few slitherlinks by now!
by detuned
Mon 13 Sep, 2010 3:42 pm
Forum: Puzzle Competitions
Topic: Indian Puzzle Championship
Replies: 52
Views: 38435

Re: Indian Puzzle Championship

Official scores should be out soon - I'd guess that a number of people will finish, especially sudoku specialists. It's kind of odd that a fairly hefty proportion of the points was given to Sudoku given that recently it's been mostly absent from the WPC. Still, the Divisible by 3 and Equals had a n...
by detuned
Mon 13 Sep, 2010 11:52 am
Forum: General Puzzle Discussions
Topic: Elitism
Replies: 11
Views: 11414

Re: Elitism

I do know what you mean - if you ever join Nikoli.com you'll certainly be entertained by some of the comments. People will get (say) the 2nd fastest time out of perhaps 1500 solvers and then they'll write a comment along the lines of "Ridiculously slow". I'm sure these comments are just for themsel...
by detuned
Mon 13 Sep, 2010 11:25 am
Forum: Puzzle Competitions
Topic: Indian Puzzle Championship
Replies: 52
Views: 38435

Re: Indian Puzzle Championship

My appeal over mistyping the key wasn't upheld - I can sort of understand, but the odds of entering a key with switched adjacent digits must be pretty big (note that they get a lot lower if the switched digits aren't adjacent). Anyhow, an actual score of 1215, but a moral score of 1435. Bearing in m...
by detuned
Sun 12 Sep, 2010 10:13 pm
Forum: General Puzzle Discussions
Topic: Pen or pencil? Trial and error?
Replies: 29
Views: 29046

Re: Pen or pencil? Trial and error?

Nice article! I did not know that about the origins of the word "Masyu". Also, with regards to solving akari on paper, what I almost always do after placing a light is to draw the lines going out, rather than writing out X's. This helps with techniques where you know part of a row/column is lit up b...
by detuned
Sun 12 Sep, 2010 9:52 pm
Forum: Puzzle Competitions
Topic: Indian Puzzle Championship
Replies: 52
Views: 38435

Re: Indian Puzzle Championship

Maybe if I'd seen a divisible 3 sudoku before it would have been a regulation puzzle, but as it was, the moment when I saw the trick to solving it was a real highlight! I'd done a little bit of preparation beforehand and presumed that there was only one sort of way it would work and assumed that fr...
by detuned
Sun 12 Sep, 2010 6:56 pm
Forum: Puzzle Competitions
Topic: Indian Puzzle Championship
Replies: 52
Views: 38435

Re: Indian Puzzle Championship

Just finished, only the two answer mistakes (silly transpositions) so far so definitely an improvement. Albeit those 80 points I should have had on the box123, and the 140 on the irregular sudoku would certainly have been nice. I fouled up the poplotek, dominos and the paint by numbers - with all of...
by detuned
Sun 12 Sep, 2010 3:33 pm
Forum: Puzzle Competitions
Topic: Indian Puzzle Championship
Replies: 52
Views: 38435

Re: Indian Puzzle Championship

I'm about to give it a go!
by detuned
Sun 12 Sep, 2010 1:03 pm
Forum: General Puzzle Discussions
Topic: Pen or pencil? Trial and error?
Replies: 29
Views: 29046

Re: Pen or pencil? Trial and error?

Ah fair point re heyawake. I can't really do these without marking white squares in, although I am trying to slowly teach myself how to not do that. I don't tend to do anything particular to mark big connected components of things though, except maybe in really big puzzles...
by detuned
Sun 12 Sep, 2010 1:14 am
Forum: General Puzzle Discussions
Topic: Fences Videos
Replies: 8
Views: 8687

Re: Fences Videos

You should check out H.Jo on nikoli.com then :) and not just on slitherlink either. It's his/Ziti's kakuro times that are the real mind-bogglers though. Every other puzzle type I can kind of see how someone can be as fast as some of the most ridiculous times are - very occasionally I post some of my...
by detuned
Sat 11 Sep, 2010 3:01 pm
Forum: General Puzzle Discussions
Topic: Battleships
Replies: 10
Views: 10845

Re: Battleships

On a similar theme to Steve's clues in adjacent rows/columns, and Ronald's "where can the 3's/4's go"; sometimes this forces placements based on the logic that you can place at most one ship in the said adjacent rows/columns (although you may not be able to say precisely where), and hence a ship mus...
by detuned
Sat 11 Sep, 2010 1:31 pm
Forum: General Puzzle Discussions
Topic: Pen or pencil? Trial and error?
Replies: 29
Views: 29046

Re: Pen or pencil? Trial and error?

Interestingly enough though, I have no qualms about using pen or pencil when I make puzzles. My Yajilin on Friday perhaps suffered from using pen on this occasion :roll: