Pieces =  12
cksum.aa = 3374085155 240640
cksum.ab = 2486874084 240640
cksum.ac = 3602223343 240640
cksum.ad = 3464619259 240640
cksum.ae = 2370317719 240640
cksum.af = 1019429046 240640
cksum.ag = 3652691477 240640
cksum.ah = 38663010 240640
cksum.ai = 1503184261 240640
cksum.aj = 1983813939 240640
cksum.ak = 7894464 240640
cksum.al = 1476633002 181823