The motto of GNU shogi is "100% bug-free or you don't pay!" :-) In the extremely unlikely case (*ahem*) that you do find a bug, please send me (Mike Vanier) an email at mvanier@bbb.caltech.edu. Also, feel free to send me comments, complaints, out-and-out raves, suggestions, plane tickets to Hawaii, and/or large suitcases filled with unmarked, untraceable hundred-dollar bills.