n: 40 m: 396 packed: 13 density: 0 nodes: 0 solveTime: 5890 buildTime: 90 solved: true
{0,16,18}
{1,11,28}
{2,5,19}
{3,20,30}
{4,8,35}
{6,21,25}
{7,26,32}
{9,17,23}
{10,27,29}
{12,31,34}
{13,22,39}
{14,37,38}
{15,24,36}