n: 40 m: 397 packed: 13 density: 0 nodes: 0 solveTime: 9420 buildTime: 100 solved: true
{0,10,19}
{1,28,32}
{2,3,9}
{4,16,17}
{5,11,15}
{6,12,27}
{7,29,38}
{8,14,18}
{13,31,33}
{20,23,39}
{21,22,36}
{24,30,34}
{25,26,35}