G F B C F A   0 3   
D E A G B C   2 2   
H D C H A G   2 2   
C G H F D B   0 3  
G H G H G B   0 3   
E A G F C H   1 3

Confirmed Letters:
H, H, B, A, E, C

No:
  H H H  
    B     B
          A
          
C     C    

Solution:
H E C A B H