Pieces =  16
cksum.aa = 784779979 240640
cksum.ab = 4083525575 240640
cksum.ac = 3683507737 240640
cksum.ad = 455490153 240640
cksum.ae = 2971094956 240640
cksum.af = 3462173378 240640
cksum.ag = 1387915777 240640
cksum.ah = 2041393732 240640
cksum.ai = 2316836696 240640
cksum.aj = 1096658141 240640
cksum.ak = 2497183353 240640
cksum.al = 2335273117 240640
cksum.am = 3449420005 240640
cksum.an = 465081063 240640
cksum.ao = 1650202813 240640
cksum.ap = 1725000478 25685