Pieces =  11
cksum.aa = 3411020843 240640
cksum.ab = 4049540285 240640
cksum.ac = 2335842658 240640
cksum.ad = 2048744714 240640
cksum.ae = 3378546177 240640
cksum.af = 1765206784 240640
cksum.ag = 4034702899 240640
cksum.ah = 3385046731 240640
cksum.ai = 216086896 240640
cksum.aj = 4213462022 240640
cksum.ak = 1890928257 52906