n: 40 m: 239 packed: 13 density: 0 nodes: 0 solveTime: 1200 buildTime: 30 solved: true
{0,29,39}
{1,20,32}
{2,25,35}
{3,4,33}
{5,16,37}
{6,9,17}
{7,22,30}
{8,28,36}
{10,12,18}
{11,13,14}
{15,24,38}
{21,23,27}
{26,31,34}