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WPF Puzzle GP 2016

Posted: Tue 19 Jan, 2016 7:01 pm
by detuned
http://gp.worldpuzzle.org/content/puzzle-gp

There's no thread for this so I thought I'd start one :)

Round 1 starts on Friday; the competition will be open until Monday evening. Instructions can be found here: http://gp.worldpuzzle.org/sites/default ... nd1_IB.pdf

It is definitely worth noting that the format this year is quite different as the competition is effectively split into two parts: "Competitive" and "Casual".

Competitive is basically more of the same from last year.

When it comes to play-off qualification, only competitive score matters!

Casual is slightly more quirky, and possibly not language neutral puzzles. However, they are the sort of thing that might have attracted people to the USPC in the olden days and might generally prove to be more fun to the more casual audience, who don't have decipher the rules to some obscure tapa variant only to find out that you also need to be far more familiar than the average joe with classic tapa to have a hope in hell of solving it.

There is also a combined score, which is your casual score plus your competitive score.

Now to bonuses, and what your solving strategy should be:

Claim bonus only requires you to finish the competitive set. BUT: you can still submit Casual answers after claiming bonus.

In other words if you are serious about things, you should definitely focus on the competitive section. When you are done with the competitive puzzles, have claimed your bonus, then you can also submit answers to casual puzzles with the remaining time.

Re: WPF Puzzle GP 2016

Posted: Tue 19 Jan, 2016 10:37 pm
by kiwijam
My understanding is there will be three leaderboards, so you may want to consider beforehand which style of puzzles you enjoy more.

The Competitive leaderboard is the main one, and will look similar to previous years. Note, it has been common for nobody to finish this set within the time limit.

The Casual leaderboard is only for the casual questions. Some of these may give penalties for wrong answers, but if this is your 'zone' then try to answer them all then move onto some competitive questions at the end if time permits.

The General leaderboard allows you to choose puzzles from either list within the time limit. In which case pick and choose your favourites from both lists. The success/relevance of this list depends heavily on the points allocation system. My first thought is that the fastest puzzlers will be doing the competitive list, and the General will just be an uninteresting copy of the Competitive leaderboard. But it is possible to generously allocate points to the casual puzzles, giving lesser mortals a chance to do well here. Although skewing too far will turn it into a copy of the Casual leaderboard, but I'm sure there is a workable middle ground.

[on second thoughts, if the purpose of General is just to combine the other two lists so people can see how they compare, then maybe it is ok to be dominated by competineers at the top]

Re: WPF Puzzle GP 2016

Posted: Tue 19 Jan, 2016 10:54 pm
by detuned
To repeat what Wei-Hwa (Puzzle GP competition director) has posted on the WPF forum:
If you want to be competitive for the playoffs, start with the competitive part, and claim bonus when you are done with that part. I expect most competitive players to be able to claim bonus. Then move on to the casual part for fun or to try to compete with the other players.

If you are just experiencing things for fun, then jump around and do whatever puzzles you want, although the casual part has easier-to-understand instructions and a wider variety of puzzles.

Re: WPF Puzzle GP 2016

Posted: Tue 26 Jan, 2016 2:02 am
by PuzzleScot
OK, now that's over, can someone explain sequences 1&3 of the casual section please?
Ta.

Re: WPF Puzzle GP 2016

Posted: Tue 26 Jan, 2016 8:54 am
by Magoo
In 1 the gaps between the numbers were increasing arithmetically (2, 8, 16, 26, 38, 52 increase by 6, 8, 10, 12, 14). Answer: 91
In 2 the gaps between the numbers increase by 8 (14, 22, 30, 38). Answer: 42
In 3 the numbers to West and East of the circle form a 2-digit number, which, divided by the 2-digit number North and South, gives the circled number. Answer: 6

Re: WPF Puzzle GP 2016

Posted: Tue 26 Jan, 2016 9:54 am
by PuzzleScot
Thanks Mark.
Looking at my workings for #1, I see errors in my <10 arithmetic. Wow.
#3 I just didn't see...

Re: WPF Puzzle GP 2016

Posted: Tue 26 Jan, 2016 2:55 pm
by drsteve
Did the best I could with a stinking head cold but that performance wasn't going to set the world on fire.

And I really didn't like the Comp/Non-comp divide. The point balance on the two sets of puzzles didn't seem desperately equitable - 16 pt for sequence 2 vs Four winds 3 but there is a gulf of difference between solving times...

Fingers crossed I'll be more compos mentis for Round 2

Re: WPF Puzzle GP 2016

Posted: Mon 01 Feb, 2016 9:04 am
by Magoo
Congrats to the big hitters again, and especially James for coming 2nd in Round 1 of the GP. Brilliant performance. Neil was Top 20 too.

But also well done to Adam Bissett, for being the only person to pip me in the Casual competition - and clearly a great decision (Tom?) to introduce that format!

Re: WPF Puzzle GP 2016

Posted: Mon 01 Feb, 2016 11:58 am
by PuzzleScot
I see James must have diverted to the casual section and come back to the main comp.
Seems he attempted 8 (6 correct) of the casual puzzles - he couldn't have done that in 5m34s, surely?

I find it 'wrong' that someone with 21/22 (Ken) can beat someone with 22/22 (James) with a relatively small time advantage.
That means estimating how long a final puzzle will take, and balancing that against bonus lost.

By the way, Tom does the sudoku GP. I think Wei-hwa does the puzzle GP.

Re: WPF Puzzle GP 2016

Posted: Tue 02 Feb, 2016 12:05 am
by kiwijam
Thanks guys.
And well done to the UK solvers at the top of the Casual list!

I did a bunch of casual puzzles at the start while waiting for the printer, it was worth having a quick guess at the maths sequences (they seemed to be worth a lot considering they only take a couple of seconds if you spot the pattern, with no penalty for guessing a wrong number either), whereas other types were 'easy' but low-scoring.
I had done a lot of prep beforehand on the variants especially, and from Wei-Hwa's comments I was half-expecting to get through both sets, although probably should have focused more on solving Competitive just in case.
I'm used to the LMI instant scoring these days, so was just pleased I finished without any answer key errors!

Re: WPF Puzzle GP 2016

Posted: Tue 02 Feb, 2016 12:27 am
by detuned
Magoo wrote:Congrats to the big hitters again, and especially James for coming 2nd in Round 1 of the GP. Brilliant performance. Neil was Top 20 too.

But also well done to Adam Bissett, for being the only person to pip me in the Casual competition - and clearly a great decision (Tom?) to introduce that format!
Yeah, the credit is all Wei-Hwa's. I haven't really had time to think about implementing some of my ideas yet!

Re: WPF Puzzle GP 2016

Posted: Tue 02 Feb, 2016 7:11 am
by Magoo
Ah well. If the Casual result hadn't looked so good to me, I suspect I might be wondering if it wasn't an unnecessary complication to have the two competitions ...

And unlike Alan I have no trouble believing that James nipped into the Casual competition for 5 minutes and solved 5 puzzles or whatever. I suspect the time he takes to spot the sequences or do the Count Shapes or even the easier Battleships, say, would be as awesome to me as the fact that he can complete the Competitive test. However, I agree 100% with Alan's view that the scoring system is over-generous to someone with an error.

Re: WPF Puzzle GP 2016

Posted: Sat 13 Feb, 2016 10:17 am
by kiwijam
The Instructions for Round 2 - Slovakia are out.
Competitive is comprised of:

Masyu: 37 points
Spiral Galaxies: 56 points
Yin Yang: 34 points
Snake: 89 points
Kropki: 295 points
Total: 511 points

:shock: Doesn't matter what the type is, having anything be 60% of a GP test is rather disappointing.

Re: WPF Puzzle GP 2016

Posted: Sat 13 Feb, 2016 11:29 am
by detuned
Neil will be very pleased with all that kropki :roll:

Re: WPF Puzzle GP 2016

Posted: Sun 14 Feb, 2016 3:07 am
by Para
kiwijam wrote:The Instructions for Round 2 - Slovakia are out.
Competitive is comprised of:

Masyu: 37 points
Spiral Galaxies: 56 points
Yin Yang: 34 points
Snake: 89 points
Kropki: 295 points
Total: 511 points

:shock: Doesn't matter what the type is, having anything be 60% of a GP test is rather disappointing.
I had the same thought. I'm also confused why the competitive section is worth less than in the previous test. That seems weird without normalisation.

Re: WPF Puzzle GP 2016

Posted: Sun 14 Feb, 2016 2:22 pm
by uvo
I expect the puzzles to be a lot easier than in the previous round; my guess is, total points / 10 equals the time in minutes that is expected from the top solvers.

Last year, every round was normalized to 600 points, and the target for the puzzle authors was a round that could be finished in 60 minutes. In the German round, the first version of the instruction booklet had incorrect points (the total was 700 something), in a second version it was normalized to 600 points. If I remember correctly (unfortunately, I can't reach the GP homepage at the moment), the top score was indeed some 70+ minutes.

Re: WPF Puzzle GP 2016

Posted: Tue 16 Feb, 2016 11:33 am
by drsteve
To add my opinion to the Kropki-athon, I don't really see the divide between competition and non-competition puzzles here - all of the first half have been WPC puzzles in the past apart from Old Maid and some look more interesting than the competitive ones which are same old, same old. I still fail to see the point of the two sections.

Re: WPF Puzzle GP 2016

Posted: Mon 22 Feb, 2016 3:51 pm
by tamz29
If I want a friend-nemy to not sleep well I'm going to make sure to give him a nxn Kropki where n is >10 :twisted: :twisted: :twisted:

At the moment, I feel the concept of splitting casual/competitive is failing. Wei-Hwa posted some really fun examples of non-puzzle-people-friendly, non-WPC-style, riddle-ish puzzles before the GP started. He mentioned specifically about how these puzzles are being underrepresented in WPC and wishes to reintroduce them in the casual section. But so far, hardly any are appearing in either round 1 or 2.
Plenty more to go, still hoping to see more of those soon.

Re: WPF Puzzle GP 2016

Posted: Wed 24 Feb, 2016 12:00 pm
by drsteve
I really enjoyed the casual section - and none of the puzzles therein would be out of place in a WPC. Which again raises the question, why have such a divide? I'd much prefer the variety of that section to the Kropki-and-snake-athon (probably my least favourite puzzles...)

Re: WPF Puzzle GP 2016

Posted: Wed 24 Feb, 2016 9:47 pm
by kiwijam
Well done to Adam Bissett, 1st= in Casual.
The Competitive section was a (Kropki-) sprint this time, with Neil and I in the top bunch.

My main rule with sprints is to really double-check every answer before claiming Bonus. Sure it costs a couple of minutes, and in non-sprint contests won't matter hugely, but there's too many bonus points at stake.
My sympathy goes to Rob V who finished first, then finished 35th. Also Bram is 40 places lower than he should be. Although both are good enough to bounce back.
I got stuck on some larger Casual puzzles, then just grabbed little ones til time ran out, but my heart wasn't really into collecting these extras.

And special mention to Endo Ken, for getting Top 10 in Casual. Sugoi! :D

Re: WPF Puzzle GP 2016

Posted: Sat 19 Mar, 2016 10:52 am
by Nilz
Heads up- the German round is this weekend. http://gp.worldpuzzle.org/content/puzzle-gp

Re: WPF Puzzle GP 2016

Posted: Mon 16 May, 2016 7:14 pm
by Nilz
Last chance to do the US round today. Well worth it if you can find the time (or just take the puzzles and solve at leisure later).

Re: WPF Puzzle GP 2016

Posted: Mon 16 May, 2016 10:07 pm
by detuned
I actually managed to find the time to test solve the US round a couple of weeks back. Well worth a look!