as in regular bingo, the object of the game is to spot a sequence of five dead animals which are in the same row or column on the bingo card. the "guide", a man carrying  a mirror reflecting the dead and the past, looks at the desolate mining field which used to be their beautiful home. level i involves fields of 109-bit and 131-bit sizes. it turned our stomachs when we saw it." a computer systems training officer was appointed to train police officers in the correct use and operation of computer equipment for practical police work. 