Pieces =  18
cksum.aa = 228857872 1425408
cksum.ab = 314607883 1425408
cksum.ac = 981986441 1425408
cksum.ad = 3366655538 1425408
cksum.ae = 2806649288 1425408
cksum.af = 3537922220 1425408
cksum.ag = 1957594278 1425408
cksum.ah = 2436386537 1425408
cksum.ai = 946126409 1425408
cksum.aj = 877591445 1425408
cksum.ak = 900245760 1425408
cksum.al = 659968882 1425408
cksum.am = 26455782 1425408
cksum.an = 3349875820 1425408
cksum.ao = 2726490841 1425408
cksum.ap = 1340466882 1425408
cksum.aq = 86126371 1425408
cksum.ar = 3540523876 225095