n: 40 m: 444 packed: 13 density: 0 nodes: 0 solveTime: 4670 buildTime: 120 solved: true
{0,8,23}
{1,5,7}
{2,25,34}
{3,38,39}
{4,11,13}
{9,31,33}
{10,12,26}
{14,16,20}
{15,17,30}
{18,27,36}
{19,21,22}
{24,29,35}
{28,32,37}