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On the last day of the weekend, we have two different contests for you all, giving you a final chance to win big before we resume our regular and humdrum week tomorrow.

For the brainy among you, we have a cryptogram. Decipher the hidden meaning behind the text below, send the full plain text (and an explanation how you deciphered it!) to us with the subject line, "GOG.com 2011 Cryptogram Contest". From all of the correct entries, we'll pull one lucky winner who gets 10 free $5.99 or $9.99 GOG.com games.

AF IG BY YX RC PM QB FC QC PF ZM CB PQ PT QE UP TP QP
UC NM US GT TI TS RC PM QB FC QC FC TV RC ID TS PG YZ TP QP
ST UY JG BL XU HU EK OY ZU EO LO RC TQ PG DL CE ZU BQ IO XY
ZS CE FO HP JT TV IX QB QC UZ NT MQ GP XE ZM XA OP TV

IB DB IL YS FO EY OP NM UA TV DI GR AM VM
FP CD QI CB RH MH ZL FC OU TS TX GI OX PS HT
TR HT ZP ED QC GI CB RC PM QP RH QE CB EY QB PF RD XQ
PQ TQ XQ QP OF ZS HC RI ZH FO DE BZ IB RG BE GT

If you're feeling artsy instead, we have an alternative for you. It's coming up on the holiday season, and we'd like you to put on your advertiser hats. Make us an outdoor ad that you think would be an awesome GOG.com holiday advertisement. Whether you want to make a billboard by the side of the road, a clever bench, a bus stop ad, or even silkscreen an entire bus with an awesome GOG.com advertisement, let's see what you think this year's GOG.com holidays should be about. Email your best GOG.com advertisement to [url=mailto:contest@gog.com?subject=GOG.com 2011 Advertisement]contest@gog.com[/url] with the subject line "GOG.com 2011 Advertisement" to enter. We will select some of our favorites from the entries and each winner will get 5 free $5.99 or $9.99 games from our catalog.

Since both of these contests represent something a little harder than the previous ones, we'll give you until 6.59 EST on Tuesday (15.11.11) to come up with your entry. We'll announce all of our contest winners on Wednesday, so keep tuned.

Put on those thinking caps, and let's see what you've got!
... and I'm trying the outdoor ad contest...

I haven't spent a lot of time on the cipher, but enough for it to no longer be considered "fun".
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Lexor: Sigh, again, no reply from bot - soooo people are sending so many answers today? o.o
I think that the mailerbot is currently on strike. I've asked IT to repair him, but he's not really a priority for them. Still, we're getting all of your emails. ;)
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Lexor: Sigh, again, no reply from bot - soooo people are sending so many answers today? o.o
facepalm
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Lexor: Sigh, again, no reply from bot - soooo people are sending so many answers today? o.o
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TheEnigmaticT: I think that the mailerbot is currently on strike. I've asked IT to repair him, but he's not really a priority for them. Still, we're getting all of your emails. ;)
Thank you again for confirmation. :)

I was afraid about my entry because I remembered what you said ("one reply from mailbot every ~20 seconds") so I was sure I should get something today as this contest is "rather hard" and there should be lesser frequency of sending entries.

One more question: if I am already done with cipher can I take part in artistic contest also? Or these two are connected and I can email my entry for only one of those?
I give up. Too many hours invested. ;-)
Me too. Too complicated for my INT < 4 brain.
I may not be able to solve this cipher but damn I'm having fun trying. Gonna take a break and play some wing commander and give it another crack later tonight. Also apparently applying Sierra moon-logic doesn't help <3 (Old School games and Old School Puzzles, isn't that what GOG's all about?)
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Kais37: (Old School games and Old School Puzzles, isn't that what GOG's all about?)
Rub everything on everything else?
I checked Twitter for its hint; apparently others haven't unscrambled the puzzle yet.
All I'll say is BZ = TG, not the other way around. And if 'symmetrically' is another clue, I think we are dealing with a two or four-square cipher.
As for a keyword (or two), haven't bothered with that yet.

...Or maybe I'm wrong and that the poem's already unscrambled.
Post edited November 14, 2011 by F5inator
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Kais37: (Old School games and Old School Puzzles, isn't that what GOG's all about?)
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Miaghstir: Rub everything on everything else?
I mean using a backwards alphabet XD
So... any more hints for this? :)
Post edited November 14, 2011 by adambiser
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Ryusui: Okay, the clue is making my brain melt.

TG = BZ and OM = GT, right? If T and G are on the same row or column, that would mean B, Z, O, and M would be on the same row/column as them, too - that's six characters on a five-character line. And if they're not, then there's only one pair that TG/GT could swap to, whether encrypting or decrypting.

Have I gone completely insane here and there's something I'm missing?
I have the same feeling.
Something is not right.

Anyway, I give up. Being stuck is not fun at all.
I was convinced that by persevering I'll get this solved eventually but now I'm not so convinced at all.
Now it's frustrating.

I've tried all possible methods that I could find in order to crack this and none succeeded. This challenge is way too hard for average Joe who finds out for the first time what cryptography is. Sorry GOG. I do hope that at the end you will make public the key (and cipher method if it is not vanilla playfair).
Post edited November 14, 2011 by iuliand
I'm fairly sure that what I'm missing is in the Twitter/pastebin clue.

"Your knowledge of GOG's product is key"

???

Stumped by these
mysterious clues,
it evades me.
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Vorax: "Your knowledge of GOG's product is key"
I assumed it meant something like "GAMES" as the/a keyword.
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adambiser: I assumed it meant something like "GAMES" as the/a keyword.
Yeah I tried deciphering with keys like games(s), pcgame(s), oldgame(s), but somehow I feel you can get to the solution without guessing.