n: 40 m: 158 packed: 13 density: 0 nodes: 0 solveTime: 630 buildTime: 10 solved: true
{0,9,22}
{1,19,32}
{2,31,39}
{3,23,25}
{4,26,28}
{5,35,38}
{6,10,17}
{7,8,16}
{11,13,33}
{12,20,29}
{14,15,34}
{18,21,30}
{24,27,36}