He did found a minimum solution of 7x9=153.
He mails:"I finally managed to borrow a digital camera and a friendly photographer, and I am attaching a picture of the beautiful Zodiac Pentomino set y'all sent. Also pictured are a few of my other favorite puzzles: some are store-bought, some are home-made, and some were imported all the way from Belgium.
Thanks again for all the fun challenges and the wonderful things you have given me."
The TI-83 Plus Silver Edition is due to Frédéric Verpoest, age
13, from Belgium
He is knowledgeable about 'pento' pipe-lines!!
