This is a double clean crack... The previous available image won an award for "The Most Gratuitous Use of the Word Belgium in a Serious Apple Hack Screen". Well the world is not Belgium but I changed it to protect the innocents US readers. The program allows you to backup it once. Use this feature to get a copy. Now the only protection is to look in the manual appendix for a specific chess move. But... how silly of me I lost the manual. To bypass the check routine use a disk editor and look at: track $19 sector $05 byte $40 change $20 $00 $B0 - JSR $B000 to $AD $00 $B0 - LDA $B000