n: 40 m: 181 packed: 13 density: 0 nodes: 0 solveTime: 500 buildTime: 20 solved: true
{0,6,13}
{1,18,34}
{2,4,32}
{3,28,37}
{5,12,15}
{7,26,33}
{8,30,38}
{9,17,27}
{10,16,20}
{11,19,31}
{14,21,35}
{22,24,36}
{23,29,39}