Pieces =  20
cksum.aa = 1779388408 240640
cksum.ab = 115554203 240640
cksum.ac = 2984752898 240640
cksum.ad = 1767416937 240640
cksum.ae = 2243216276 240640
cksum.af = 2806639239 240640
cksum.ag = 860264001 240640
cksum.ah = 316888548 240640
cksum.ai = 2487000753 240640
cksum.aj = 3541981793 240640
cksum.ak = 3452594234 240640
cksum.al = 1088114768 240640
cksum.am = 2955252199 240640
cksum.an = 595196047 240640
cksum.ao = 1589272017 240640
cksum.ap = 605955137 240640
cksum.aq = 3213610245 240640
cksum.ar = 1937393829 240640
cksum.as = 1329075085 240640
cksum.at = 2592116553 167918