Word Puzzle Enter a seven-letter word. The computer will place it in the seven squares at the top of the screen. It will then mix it by sliding the middle letter down the vertical column, replacing it at the right or left and then repeat- ing the process several times. Once the mixed word appears the aim is to restore it to the original word. Slide a letter down with 6, move it to the left end with 5, and to the right end with 8. Word Puzzle was written by Denis McCarthy of Todmorden, Lancashire for the 16K Spectrum.