Working on vert/horz
vertical movement properly restricted
pawns fully functional
knight function repaired
king can't go through friendlies
bishop, queen work properly. starting king and checkmate
enemy king is uncapturable
deleted old comments, readded 'make your move, player...'
ready to start on check and mate
fixing bugs and checkmate
split up pieces
files split up, old comments removed, every piece moves as they should. clean start for checkmate