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One Away (Posted on 2005-12-30) Difficulty: 4 of 5
0+D4R2NBZ4JDCFF5OFBHH
SHR43ADRZK0BSEG0CEIS
0J50XKV00PKDDSL5DKFL
CHFCIF3JZDKECJSTF5J3
HR2NKPKDFSFK
-1

Hint: 0 = 0. but 1 = 27, the line breaks don't matter, and the answer has four letters.

See The Solution Submitted by Gamer    
Rating: 4.3333 (3 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: useless observations -- useless | Comment 13 of 27 |
(In reply to useless observation #4 by Mindrod)

If you look hard enough at the numbers you will find all sorts of odd relationships. Finding pairs that add up to 10 or whatever are not related. The relationship is much simpler than that.

"all the numbers have a 1 in them" this is where you were on the right track. (Though actually, 67 does not have a 1 in it.) Most of the numbers have this 1 where it's important. In fact (ignoring English letter/number frequencies and such), 3/4 of all messages encoded this way will have numbers that have one where it's important.

If you still don't understand, I will give a big hint about what to do next, but I assume it will be easilly answered after that.


  Posted by Gamer on 2006-02-03 13:50:37
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