Pieces =  20
cksum.aa = 2845056533 240640
cksum.ab = 2745197178 240640
cksum.ac = 3474731847 240640
cksum.ad = 3474913397 240640
cksum.ae = 452385481 240640
cksum.af = 1568405239 240640
cksum.ag = 2673614942 240640
cksum.ah = 939347888 240640
cksum.ai = 3170157451 240640
cksum.aj = 971378066 240640
cksum.ak = 2091214726 240640
cksum.al = 3348209925 240640
cksum.am = 53540731 240640
cksum.an = 619621556 240640
cksum.ao = 4185701458 240640
cksum.ap = 2354633213 240640
cksum.aq = 2229173290 240640
cksum.ar = 4074973825 240640
cksum.as = 1633364999 240640
cksum.at = 3942170151 103953