- bitboard.c: make attacks for knight/king - square macros (BB, BBfile, BBrank) renamed sq_make, sq_file, sq_rank, moved to board.h (and become temporarily inline funcs) - different macros/defs moved to "correct place" (bitboard/board/piece): board.[ch]: everything related to board/square bitboard.[ch]: everything related to bitboards piece.[ch]: everything related to pieces