Each of the letters represent a different integer 0 TO 9 and each row and each column represent a nine digit prime number (18 in all).
C D A E I H D I C
B C C C A C D B F
B G H G D A H J D
F G E C B C A D A
I A D B J F E F C
A G I G F C A B D
D D I G E E A D A
F E E C F E H A C
C D C F D A F D F
I am assuming the grid only reads top-bottom and left-right ( ie. not in the reverse order or daigonally )
So we have...
C,D,F,A, - 1,3,7,9
B,I,H, - 2,4,6,8 ( Cannot be 0 )
G,E,J - 0,5 ( and leftover from b/i/h )
Edited on August 24, 2004, 8:32 am