The ZIP file contains DKF4.KYE, a set of fifteen challenging KYE boards.
I have worked all of them using the arrow keys, so they are all doable.
Have fun!
P.S. If you enjoyed these KYE levels, or even if you didn't, please
drop me a line (Dennis K. Fitzgerald at dkfitzgerald@mindspring.com) and let
me know what you think. Thanks.