P      .         
     W  P   .    . M
 L .           .   .
 S      .   W  E L H
 .   .  S      W    
 .   O  . .      S .
 .   S    H    L   P
   O H    R .       
   M .    P .      .

Code-Doku Joke

What is the best thing to do if you find a gorilla in your bed?

Place each of the letters of WELSH ROMP exactly once in each row, column and 3×3 box. In addition to the letters, each row, column and 3×3 box will also contain one empty square. 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: Challenging

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