Pieces =  12
cksum.aa = 213001936 240640
cksum.ab = 1979755785 240640
cksum.ac = 22353189 240640
cksum.ad = 1445280427 240640
cksum.ae = 1796787165 240640
cksum.af = 4104586225 240640
cksum.ag = 3475559209 240640
cksum.ah = 4256486075 240640
cksum.ai = 2230226905 240640
cksum.aj = 3608455875 240640
cksum.ak = 3722372270 240640
cksum.al = 2163906055 100019