Pieces =  12
cksum.aa = 4181515621 240640
cksum.ab = 2335800317 240640
cksum.ac = 4095360957 240640
cksum.ad = 3191819044 240640
cksum.ae = 4112068049 240640
cksum.af = 603103096 240640
cksum.ag = 4111764851 240640
cksum.ah = 955392645 240640
cksum.ai = 706960841 240640
cksum.aj = 2676450571 240640
cksum.ak = 1765886830 240640
cksum.al = 1272941139 73667