Pieces =  12
cksum.aa = 2760366462 240640
cksum.ab = 1049832951 240640
cksum.ac = 645816454 240640
cksum.ad = 1166079633 240640
cksum.ae = 2290688939 240640
cksum.af = 2651652416 240640
cksum.ag = 4067124898 240640
cksum.ah = 78842229 240640
cksum.ai = 2234297576 240640
cksum.aj = 757590734 240640
cksum.ak = 2989791876 240640
cksum.al = 876310169 139570