n: 40 m: 232 packed: 13 density: 0 nodes: 0 solveTime: 1300 buildTime: 40 solved: true
{0,8,20}
{1,29,36}
{2,3,34}
{4,12,27}
{5,32,37}
{6,23,31}
{7,10,18}
{9,14,35}
{11,21,22}
{13,26,33}
{15,24,25}
{16,19,28}
{30,38,39}