# The Grey Labyrinth is a collection of puzzles, riddles, mind games, paradoxes and other intellectually challenging diversions. Related topics: puzzle games, logic puzzles, lateral thinking puzzles, philosophy, mind benders, brain teasers, word problems, conundrums, 3d puzzles, spatial reasoning, intelligence tests, mathematical diversions, paradoxes, physics problems, reasoning, math, science.

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cihanaltay
Icarian Member

 Posted: Sat Apr 13, 2002 4:55 pm    Post subject: 1 PQRST 01 - Puzzle Competition has started. You have seven days to send answers and ratings. http://www.otuzoyun.com/pqrst Have a nice week.
groza528
No Place Like Home

 Posted: Sat Apr 13, 2002 5:20 pm    Post subject: 2 Puzzles printed and I'm about to start. From this website you can expect a lot of high scores, I expect.
cihanaltay
Icarian Member

 Posted: Sat Apr 13, 2002 5:30 pm    Post subject: 3 I know. And if there exist lots of people sharing the first place, I will prepare much more distinguishing optimization puzzles for the next PQRSTs.
groza528
No Place Like Home

 Posted: Sun Apr 14, 2002 8:20 am    Post subject: 4 A few questions: 1. These are graded by hand (rather than computer), right? If not, what do I do about finding multiple answers? 2. Puzzle 6: Can we push more than one neighbor (i.e. could we choose to push the third row from the bottom to the left?) 3. P6: Does there have to be an empty space behind the piece we push? (In the example, could we have pushed D-right?) 4. P6: Can we push pieces off the board? (In the example, could we push D-left?) 5. [gloat disguised as a question]Any bonus for finishing in under 24 hours?[/gdaaq] 6. Do we rate each puzzle individually, or do we give exactly one 10, exactly one 9, etc? [This message has been edited by groza528 (edited 04-14-2002 04:23 AM).]
groza528
No Place Like Home

 Posted: Sun Apr 14, 2002 8:20 am    Post subject: 5 I fear the answer to question 5 will be, "Yes, you get harder questions next time."
cihanaltay
Icarian Member

 Posted: Sun Apr 14, 2002 9:22 am    Post subject: 6 1. Yes, they are checked manually. 2. Puzzle says, a piece can only move one square R or L, and can only push the neighbouring piece on his way, not the ones above or below it (and of course not the one on the opposite way). This rule is naturally true for a pushed piece. 3. No. (You could slide D right in the example) 4. No. (No way) 5. It would be unfair. And, yes, you will surely get harder puzzles next time. : ) 6. Individually (10 being top). (I was afraid to get this question)
CrystyB
Misunderstood Guy

 Posted: Sun Apr 14, 2002 10:38 pm    Post subject: 7 could we send explanations too (in the comment textarea)? Or would it be too time-consuming to look at all of the submitted reasons?
groza528
No Place Like Home

 Posted: Mon Apr 15, 2002 8:18 am    Post subject: 8 CrystyB: I think if you get a correct answer he will infer that you did it correctly, so an explanation is unnecessary. If you think one or two puzzles have particularly confusing solutions I don't think it would hurt to explain. You may want to wait for an official answer to that question, but that's my take on it.
cihanaltay
Icarian Member

 Posted: Mon Apr 15, 2002 8:53 am    Post subject: 9 You don't have to send explanations of your answers. I won't tell anything about your answer's correctness in this week. You will see your point when the results are posted.
cihanaltay
Icarian Member

 Posted: Mon Apr 15, 2002 7:16 pm    Post subject: 10 Please send your specific questions to the competition e-mail address: pqrst@otuzoyun.com On the other hand, I'll continue to answer general questions. Thank you GL Forum.
CrystyB
Misunderstood Guy

 Posted: Mon Apr 15, 2002 10:51 pm    Post subject: 11 I think you missunderstood Groza's #2. Could the Z in row 3 be moved left? ((And i really hate the way i should submit the answer for Puzzle6. I mean how are you to know what Letter i moved?)) What should i rate? Only the IDEA of the puzzles or i should include the impression of the presentation of the puzzle? (i mean verbal, not graphical)
cihanaltay
Icarian Member

 Posted: Tue Apr 16, 2002 10:20 pm    Post subject: 12 Groza's #2: Yes, the Z in row 6 from the top can be moved left. Puzzle 6: Yes, it turned out to be hard for me to check the answer keys for puzzle 6. But you can be sure that I'll know. Ratings: If I would choose one of your two, it would be the IDEA. Of course, there are people rating some puzzles on their presentation. In general, you should rate them considering FUN while you are solving them, and your REACTION when you first saw them. (I would say ORIGINALITY, but there are some classic puzzles in the test)
groza528
No Place Like Home

 Posted: Wed Apr 17, 2002 1:13 pm    Post subject: 13 Originally posted by cihanaltay:Thank you GL Forum. No need to thank us, we're just doing our job. Whenever there's a puzzle out there that needs to be solved, it is our duty and our privilege to solve it as well as we can.
groza528
No Place Like Home

 Posted: Sat Apr 20, 2002 4:56 pm    Post subject: 14 w00t, time's up! *anxiously awaits results*
cihanaltay
Icarian Member

 Posted: Sat Apr 20, 2002 5:08 pm    Post subject: 15 Yes, I'm a results-statistics-fan, too. I hope I can finish it up in 24 hours.
UnheardVoice
Daedalian Member

 Posted: Sat Apr 20, 2002 9:52 pm    Post subject: 16 It's already over? *wished he had less homework*
Da5id
Daedalian Member

 Posted: Sat Apr 20, 2002 10:18 pm    Post subject: 17 Crap, I haven't even had a chance to look at them yet. 7 days? Bah.
cihanaltay
Icarian Member

 Posted: Mon Apr 22, 2002 9:29 am    Post subject: 18 24-hours was enough to check the results. But, there are some works to do. So, wait another 24 or 48.
cihanaltay
Icarian Member

 Posted: Tue Apr 23, 2002 3:39 pm    Post subject: 19 Results, finally. http://www.otuzoyun.com/pqrst
mathgrant
A very tilted cell member

 Posted: Tue Apr 23, 2002 6:21 pm    Post subject: 20 I'm glad I didn't enter. The answer key seems confusing and inconvenient for geometric puzzles! And how does knowing the perimeter of a shpae show that we know what the shape is for puzzle 03? I must critcize the thought!
cihanaltay
Icarian Member

 Posted: Tue Apr 23, 2002 7:11 pm    Post subject: 21 You are, of course, right; knowing the perimeter doesn't show knowing the shape. But I hear complaints about the complexity of the answer keys, too. Actually, I made a mistake by not including a penalty for that puzzle. On the other hand, there weren't many guesses (That doesn't make the puzzle perfectly fair, though). And, I would prefer you enter the competition.
CrystyB
Misunderstood Guy

 Posted: Wed Apr 24, 2002 1:30 am    Post subject: 22 couldn't you please make a 12-columned table to enable me to see what puzzles i DID solve (and got the max possible)? Edit: In fact i'd like to know MY scores for each puzzle at least! i think i only got #5 wrong... [This message has been edited by CrystyB (edited 04-23-2002 09:35 PM).]
sodasipper
Guest

 Posted: Wed Apr 24, 2002 7:37 am    Post subject: 23 I also feel my score is rather low compaired to some of the highest score, even though all my answers either matched what you have exactly, or were more, shall we say, creative in obtaining a different answer. I think a chart showing who got what right would be great. )
cihanaltay
Icarian Member

 Posted: Wed Apr 24, 2002 9:20 am    Post subject: 24 A big table with lots of info means lots of work. But I'll try to post another table directly taken from my excel work. In this time you can send an e-mail to me asking your scores if you think I miscalculated your points.
groza528
No Place Like Home

 Posted: Wed Apr 24, 2002 11:52 am    Post subject: 25 my score looks right, but my name is 'Jason' Boomer. Not that worried about it though, don't bother changing it unless you're editing something anyway. When I first saw it I said 'whoa, my dad answered these too?' ------------------ Just listen to the voices. -rlp
cihanaltay
Icarian Member

 Posted: Wed Apr 24, 2002 12:27 pm    Post subject: 26 I changed it yesterday already. I'm good at guessing the fathers' names
cihanaltay
Icarian Member

 Posted: Wed Apr 24, 2002 7:02 pm    Post subject: 27 I've posted the detailed results, in case you are interested: http://www.otuzoyun.com/pqrst/detailed01.html
Sami
Daedalian Member

 Posted: Wed Apr 24, 2002 7:14 pm    Post subject: 28 I'm trying to figure out why you thought my solution to #1 was wrong...
HappyMutant
Daedalian again

 Posted: Thu Apr 25, 2002 3:58 am    Post subject: 29 No reflections were allowed. I missed that - bah. On the first police officers puzzle, could the officer only see one intersection away? I didn't get last. - Matt Elder, 50th in PQRST 1
HappyMutant
Daedalian again

 Posted: Thu Apr 25, 2002 4:01 am    Post subject: 30 Oh - and one other thing - thanks for putting together the competition. I certainly enjoyed it.
cihanaltay
Icarian Member

 Posted: Thu Apr 25, 2002 9:48 am    Post subject: 31 No, there was no restriction on the "Police Officers". And, note that the instruction was: "Position three police officers so that any point on any street can be seen by at least one officer." Thanks GL competitors.
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