A Group Puzzle of Extreme Difficulty

Reserved for hints.

Hint: Think of a grid you use for math class.

Oh.My.

Thank you for the puzzle. But can i ask what exactly do you mean with 'group' givaway? do you have to be a part of a group to be able to join the giveaway, even if you found the code?

This seems to be....quite hard. But interesting, thanks! :)

Fuck these puzzles.

MISSION ABORT
MISSION ABORT
MISSION ABORT
BRAIN MELTDOWN IMMINENT

interesting, ordered pairs huh, think i have a clue on what it might be....

brain... hurting... RUN!!

Ugh im working on this puzzle, it catch my eye and i think i'm on the right track... just need to figure out some stuff before decoding.

easy one almost done...and there is a mistake in 7th word

well the message is: CONGRATULATIONS ON COMLETING THE PUZZLE THE GIVEAWAY CODE IS BrbC(DIGIT)

code doesn't work anyway, it appears to have changed, there is a h before z that could have changed something

Encoded "I HAVE 10 BANANAS" has a mistake in it :P

Can one of the decoders tell us how to decode the code so we who can't solve it have a try as well?

I rechecked all codes and I did find one error but it was in the I HAVE 10 BANANAS thing so you should be able to get it. I am extremely impressed with you guys and I am pleased with how well you accomplished this task. I now know for the future that you guys don't need 3 weeks to solve a puzzle like this and when I get back from my summer trip there will be more of this to come. Have a great summer and I wish you all the best of luck in your future summer endeavors.

I don't know how this deals with inversed alphabets and ordered pairs, but I can tell you how I decoded the letters. Whomever this helps, you are welcome, however this doesn't solve a few issues. If what nitsogop and Yatterman says is true, then this way of decoding was completely unintentional.

What one needs to do is, for each pair, calculate the signed distance from M of one letter, and then add it to the other. For the most part, every pair has one of 5 letters: K, L, M, N, and O. Since the distances for those are easy to calculate (respectively: -2,-1,0,+1,+2), it is easiest to calculate based on the other letter. You can try it out on the sample message, and it will decode everything except the numbers and Z. If you interpret Z as a single space, then it all works out.

However this leads to issues when applied against the actual message:

1) MCOMMKRMLMOCORNHNMLH translates to COKRMLETING (was MCOMMLMOCORNHNMLH = COMLETING before last update) KR translates to a P so it is suspicious.

2) LHNHLWOCKMCWKCOW translates to GIVEKMAY and contains the only pair that does not use KLMNO or Z (CW). More over if you exchange the M and C, it translates to GIVEAWAY

3) KRKWZZZZLMOC translates to what we presume is PUZZLE, but uses ZZ as opposed to something like NY or OX.

4) LCMRLCMCNNMH is what we think is supposed to translate into the giveaway code. At it's full length it translates to BRBCOH. Since the numbers in the sample also started with NN, one would presume NNMH is a number. However, NNKCLC translates as OAB and NNMH is OH and as many people probably tried already, BrbC# doesn't lead to any giveaways.

For numbers, there are two schools of thought: 1) a number is worth three letters 2) a number is signaled by NN and is translated as pairs afterwards. Before the last update (added the M before the last H), school 1 would've presumed exactly one number. Now it would presume exactly two. School 2 says that there is only one number and there is some other more complex piece to the letters at the beginning that is missing. It is simple (but not trivial) to exhaust all possibilities in school 1. School 2 requires further inquiry into the issues found.

The 7th word is LHNHLWOCKMCWKCOW,

LH = G
NH = I
LW = V
OC = E
KM = K
CW = ?
KC = A
OW = Y

It looks like it should have said giveaway, but the code is GIVEK_AY. There is either an error or some clue I don't see.

Thinking out loud:
10 in the original is NNKCLC
KC is A, or 1, so I thought maybe NNKC = 1, and LC = 0 (since there was an LC in the answer).

So if that's the case
LC = 0 (maybe)
MR = r
LC = b
MC = C
NNMH = 8 (8th letter)

But unfortunately it didn't work either

My calculations

I wonder if the actual giveaway was deleted...

Perhaps the code isn't in the correct order? i.e. BRBC# could map into:
XxxX# or #xxXX or Xxx#X

bumping this.

2 days left. I feel no need to post hints since you guys are all figuring it out together for the most part.