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June Fun

For the last two years (2006 and 2007), I have done something in June. If you solve this code-doku, you can do a quick web search to find out more about the event. (You can also find out more about me, if you dig a little...)

Place each of the letters in DO I SCREAM? exactly once in each row, column and 3×3 box. When you have completed the puzzle, the shaded squares will form a hidden message read left to right, then top to bottom.

Difficulty: Extreme

Here is a print-friendly version of this puzzle.

 

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

Thanks,
Steve