n: 40 m: 407 packed: 13 density: 0 nodes: 0 solveTime: 15090 buildTime: 100 solved: true
{0,8,16}
{1,3,17}
{2,10,14}
{4,35,39}
{5,9,15}
{6,23,29}
{7,28,38}
{12,22,31}
{13,26,34}
{18,27,30}
{19,33,37}
{20,21,25}
{24,32,36}