n: 40 m: 240 packed: 13 density: 0 nodes: 0 solveTime: 2680 buildTime: 30 solved: true
{0,25,35}
{1,22,23}
{2,18,36}
{3,12,34}
{4,26,38}
{5,8,9}
{6,17,19}
{7,10,13}
{11,27,39}
{14,20,37}
{15,24,28}
{16,21,33}
{29,30,31}