M      H  S    
     T  E          H
        N      D M  
        T           
          L      S D
   T        D  N    
            T      M
 D H      M E       
        S        N  

Code-Doku Joke

What do you call a calf after it's nine months old?

Place each of the letters of SLED MONTH exactly once in each row, column and 3×3 box. When you have completed the puzzle, the shaded squares will form the punch line of the joke read left to right, then top to bottom.

Difficulty: Tricky

Here is a print-friendly version of this puzzle.

 

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

Thanks,
Steve