In the grid below, place each of the letters
D, E, I, N, Q, R, S and T
exactly once in each row, column and 3×3 box.

   E      H I       
          U    J    
   C I  S           
 U   H      F      J
          S E    H  
               Q            C        F  
   E N      R                 I        S
 Q                     J                
 D        R      E          H   S      C
   Q    E           

In the grid above, place each of the letters
C, E, F, H, I, J, S and U
exactly once in each row, column and 3×3 box.

     E      I  N R  
            S  I    
     S  N      E    
   R    D Q T       

Headline (Week Ending 09 Sep 2005)

Solve the two overlapping code-doku puzzles. When you have completed the puzzle, the shaded squares will form a hidden message read left to right, then top to bottom. You will not be able to complete the puzzle using the sudoku rules alone. You will have to make choices that give a meaningful message.

Difficulty: Moderate

Here is a print-friendly version of this puzzle.


Please send responses to my email address is mathrec at this domain

Thanks,
Steve