n: 40 m: 516 packed: 13 density: 0 nodes: 0 solveTime: 15500 buildTime: 150 solved: true
{0,23,28}
{1,2,24}
{3,8,30}
{4,21,32}
{5,20,39}
{6,9,10}
{7,29,34}
{11,14,17}
{12,19,25}
{13,22,31}
{15,37,38}
{16,27,35}
{18,26,36}