Pieces =  12
cksum.aa = 1800904855 240640
cksum.ab = 641290880 240640
cksum.ac = 692662288 240640
cksum.ad = 4130401245 240640
cksum.ae = 2860628862 240640
cksum.af = 2381742453 240640
cksum.ag = 3111095542 240640
cksum.ah = 4125519455 240640
cksum.ai = 1743833425 240640
cksum.aj = 3215591496 240640
cksum.ak = 1047741461 240640
cksum.al = 4261501190 146870