Below each letter in the message box you will find two numbers. Find the first number of each set along the left side of the puzzle box. Find the second number along the bottom of the puzzle box.

If you move your left finger from the first number toward the right along its grid line, and you move your right finger toward the top along its grid line, you will end up with both fingers in the same square. The letter you flnd in that square can now be put in the message box.