I'll have a go cracking it!
Meanwhile here's my own code...
c8j6u5s9q4a1p5x6z9h4d1t6t1t9f9q5s9b1u9y5g5c5l2
Tip: I have include a space as the last character of the alphabet after z. The message is a question.
Answer and explanation of the code:
Answer: 7
Deciphered Message: How many days in a week?
The code works by splitting the alphabet into three sections:
123456789 123456789 123456789
abcdefghi jklmnopqr stuvwyxz_
We add space to the last section to make 27 characters, so each section is 9 characters long.
Each letter of the message is encoded in character pairs of one letter and one number (eg a8); the letter indexes the section that the encoded letter resides in, this character can be any of the letters from that same section i.e. the first letter of the message is H, which is in the first section, so we can use any letter from a-i to index that section (this is good because we can index the same letter using different characters to throw hackers off the scent), then we add the number to indicate the position of the letter within the section, h=8, so we could write H as a8,b8,c8,...,i8.
[edit]
The only progress I've made on your code is that a 4 is always preceded by a 1.
I don't understand why the only digits are 1,2,3,4 and 8. 1+2+3+4+8=18 +8=26 hmmm...
Be good.
