Pieces =  11
cksum.aa = 3351918217 240640
cksum.ab = 4144504658 240640
cksum.ac = 3654199398 240640
cksum.ad = 3350621636 240640
cksum.ae = 2328115011 240640
cksum.af = 3699338431 240640
cksum.ag = 369465726 240640
cksum.ah = 1297031480 240640
cksum.ai = 1389823476 240640
cksum.aj = 1278453804 240640
cksum.ak = 3172987886 212010